s202226701001/tailor-app/node_modules/vis/dist/vis.js

/**
 * vis.js
 * https://github.com/almende/vis
 *
 * A dynamic, browser-based visualization library.
 *
 * @version 4.21.0
 * @date    2017-10-12
 *
 * @license
 * Copyright (C) 2011-2017 Almende B.V, http://almende.com
 *
 * Vis.js is dual licensed under both
 *
 * * The Apache 2.0 License
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * and
 *
 * * The MIT License
 *   http://opensource.org/licenses/MIT
 *
 * Vis.js may be distributed under either license.
 */

"use strict";

(function webpackUniversalModuleDefinition(root, factory) {
	if(typeof exports === 'object' && typeof module === 'object')
		module.exports = factory();
	else if(typeof define === 'function' && define.amd)
		define([], factory);
	else if(typeof exports === 'object')
		exports["vis"] = factory();
	else
		root["vis"] = factory();
})(this, function() {
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/* 0 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

exports.default = function (instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
};

/***/ }),
/* 1 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _defineProperty = __webpack_require__(169);

var _defineProperty2 = _interopRequireDefault(_defineProperty);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = function () {
  function defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      (0, _defineProperty2.default)(target, descriptor.key, descriptor);
    }
  }

  return function (Constructor, protoProps, staticProps) {
    if (protoProps) defineProperties(Constructor.prototype, protoProps);
    if (staticProps) defineProperties(Constructor, staticProps);
    return Constructor;
  };
}();

/***/ }),
/* 2 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _getIterator2 = __webpack_require__(77);

var _getIterator3 = _interopRequireDefault(_getIterator2);

var _create = __webpack_require__(29);

var _create2 = _interopRequireDefault(_create);

var _keys = __webpack_require__(8);

var _keys2 = _interopRequireDefault(_keys);

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

// utility functions

// first check if moment.js is already loaded in the browser window, if so,
// use this instance. Else, load via commonjs.


var moment = __webpack_require__(9);
var uuid = __webpack_require__(157);

/**
 * Test whether given object is a number
 * @param {*} object
 * @return {Boolean} isNumber
 */
exports.isNumber = function (object) {
  return object instanceof Number || typeof object == 'number';
};

/**
 * Remove everything in the DOM object
 * @param {Element} DOMobject
 */
exports.recursiveDOMDelete = function (DOMobject) {
  if (DOMobject) {
    while (DOMobject.hasChildNodes() === true) {
      exports.recursiveDOMDelete(DOMobject.firstChild);
      DOMobject.removeChild(DOMobject.firstChild);
    }
  }
};

/**
 * this function gives you a range between 0 and 1 based on the min and max values in the set, the total sum of all values and the current value.
 *
 * @param {number} min
 * @param {number} max
 * @param {number} total
 * @param {number} value
 * @returns {number}
 */
exports.giveRange = function (min, max, total, value) {
  if (max == min) {
    return 0.5;
  } else {
    var scale = 1 / (max - min);
    return Math.max(0, (value - min) * scale);
  }
};

/**
 * Test whether given object is a string
 * @param {*} object
 * @return {Boolean} isString
 */
exports.isString = function (object) {
  return object instanceof String || typeof object == 'string';
};

/**
 * Test whether given object is a Date, or a String containing a Date
 * @param {Date | String} object
 * @return {Boolean} isDate
 */
exports.isDate = function (object) {
  if (object instanceof Date) {
    return true;
  } else if (exports.isString(object)) {
    // test whether this string contains a date
    var match = ASPDateRegex.exec(object);
    if (match) {
      return true;
    } else if (!isNaN(Date.parse(object))) {
      return true;
    }
  }

  return false;
};

/**
 * Create a semi UUID
 * source: http://stackoverflow.com/a/105074/1262753
 * @return {string} uuid
 */
exports.randomUUID = function () {
  return uuid.v4();
};

/**
 * assign all keys of an object that are not nested objects to a certain value (used for color objects).
 * @param {object} obj
 * @param {number} value
 */
exports.assignAllKeys = function (obj, value) {
  for (var prop in obj) {
    if (obj.hasOwnProperty(prop)) {
      if ((0, _typeof3['default'])(obj[prop]) !== 'object') {
        obj[prop] = value;
      }
    }
  }
};

/**
 * Copy property from b to a if property present in a.
 * If property in b explicitly set to null, delete it if `allowDeletion` set.
 *
 * Internal helper routine, should not be exported. Not added to `exports` for that reason.
 *
 * @param {object} a  target object
 * @param {object} b  source object
 * @param {string} prop  name of property to copy to a
 * @param {boolean} allowDeletion  if true, delete property in a if explicitly set to null in b 
 * @private
 */
function copyOrDelete(a, b, prop, allowDeletion) {
  var doDeletion = false;
  if (allowDeletion === true) {
    doDeletion = b[prop] === null && a[prop] !== undefined;
  }

  if (doDeletion) {
    delete a[prop];
  } else {
    a[prop] = b[prop]; // Remember, this is a reference copy!
  }
}

/**
 * Fill an object with a possibly partially defined other object.
 *
 * Only copies values for the properties already present in a.
 * That means an object is not created on a property if only the b object has it.
 *
 * @param {object} a
 * @param {object} b
 * @param {boolean} [allowDeletion=false]  if true, delete properties in a that are explicitly set to null in b 
 */
exports.fillIfDefined = function (a, b) {
  var allowDeletion = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

  // NOTE: iteration of properties of a
  // NOTE: prototype properties iterated over as well
  for (var prop in a) {
    if (b[prop] !== undefined) {
      if (b[prop] === null || (0, _typeof3['default'])(b[prop]) !== 'object') {
        // Note: typeof null === 'object'
        copyOrDelete(a, b, prop, allowDeletion);
      } else {
        if ((0, _typeof3['default'])(a[prop]) === 'object') {
          exports.fillIfDefined(a[prop], b[prop], allowDeletion);
        }
      }
    }
  }
};

/**
 * Extend object a with the properties of object b or a series of objects
 * Only properties with defined values are copied
 * @param {Object} a
 * @param {...Object} b
 * @return {Object} a
 */
exports.extend = function (a, b) {
  // eslint-disable-line no-unused-vars
  for (var i = 1; i < arguments.length; i++) {
    var other = arguments[i];
    for (var prop in other) {
      if (other.hasOwnProperty(prop)) {
        a[prop] = other[prop];
      }
    }
  }
  return a;
};

/**
 * Extend object a with selected properties of object b or a series of objects
 * Only properties with defined values are copied
 * @param {Array.<string>} props
 * @param {Object} a
 * @param {Object} b
 * @return {Object} a
 */
exports.selectiveExtend = function (props, a, b) {
  // eslint-disable-line no-unused-vars
  if (!Array.isArray(props)) {
    throw new Error('Array with property names expected as first argument');
  }

  for (var i = 2; i < arguments.length; i++) {
    var other = arguments[i];

    for (var p = 0; p < props.length; p++) {
      var prop = props[p];
      if (other && other.hasOwnProperty(prop)) {
        a[prop] = other[prop];
      }
    }
  }
  return a;
};

/**
 * Extend object a with selected properties of object b.
 * Only properties with defined values are copied.
 *
 * **Note:** Previous version of this routine implied that multiple source objects
 *           could be used; however, the implementation was **wrong**.
 *           Since multiple (>1) sources weren't used anywhere in the `vis.js` code,
 *           this has been removed
 *
 * @param {Array.<string>} props names of first-level properties to copy over
 * @param {object} a  target object
 * @param {object} b  source object
 * @param {boolean} [allowDeletion=false]  if true, delete property in a if explicitly set to null in b 
 * @returns {Object} a
 */
exports.selectiveDeepExtend = function (props, a, b) {
  var allowDeletion = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;

  // TODO: add support for Arrays to deepExtend
  if (Array.isArray(b)) {
    throw new TypeError('Arrays are not supported by deepExtend');
  }

  for (var p = 0; p < props.length; p++) {
    var prop = props[p];
    if (b.hasOwnProperty(prop)) {
      if (b[prop] && b[prop].constructor === Object) {
        if (a[prop] === undefined) {
          a[prop] = {};
        }
        if (a[prop].constructor === Object) {
          exports.deepExtend(a[prop], b[prop], false, allowDeletion);
        } else {
          copyOrDelete(a, b, prop, allowDeletion);
        }
      } else if (Array.isArray(b[prop])) {
        throw new TypeError('Arrays are not supported by deepExtend');
      } else {
        copyOrDelete(a, b, prop, allowDeletion);
      }
    }
  }
  return a;
};

/**
 * Extend object `a` with properties of object `b`, ignoring properties which are explicitly 
 * specified to be excluded.
 * 
 * The properties of `b` are considered for copying.
 * Properties which are themselves objects are are also extended.
 * Only properties with defined values are copied
 *
 * @param {Array.<string>} propsToExclude  names of properties which should *not* be copied
 * @param {Object}                      a  object to extend
 * @param {Object}                      b  object to take properties from for extension
 * @param {boolean} [allowDeletion=false]  if true, delete properties in a that are explicitly set to null in b 
 * @return {Object} a
 */
exports.selectiveNotDeepExtend = function (propsToExclude, a, b) {
  var allowDeletion = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;

  // TODO: add support for Arrays to deepExtend
  // NOTE: array properties have an else-below; apparently, there is a problem here. 
  if (Array.isArray(b)) {
    throw new TypeError('Arrays are not supported by deepExtend');
  }

  for (var prop in b) {
    if (!b.hasOwnProperty(prop)) continue; // Handle local properties only 
    if (propsToExclude.indexOf(prop) !== -1) continue; // In exclusion list, skip

    if (b[prop] && b[prop].constructor === Object) {
      if (a[prop] === undefined) {
        a[prop] = {};
      }
      if (a[prop].constructor === Object) {
        exports.deepExtend(a[prop], b[prop]); // NOTE: allowDeletion not propagated!
      } else {
        copyOrDelete(a, b, prop, allowDeletion);
      }
    } else if (Array.isArray(b[prop])) {
      a[prop] = [];
      for (var i = 0; i < b[prop].length; i++) {
        a[prop].push(b[prop][i]);
      }
    } else {
      copyOrDelete(a, b, prop, allowDeletion);
    }
  }

  return a;
};

/**
 * Deep extend an object a with the properties of object b
 *
 * @param {Object} a
 * @param {Object} b
 * @param {boolean} [protoExtend=false]  If true, the prototype values will also be extended.
 *                          (ie. the options objects that inherit from others will also get the inherited options)
 * @param {boolean} [allowDeletion=false] If true, the values of fields that are null will be deleted
 * @returns {Object}
 */
exports.deepExtend = function (a, b) {
  var protoExtend = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  var allowDeletion = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;

  for (var prop in b) {
    if (b.hasOwnProperty(prop) || protoExtend === true) {
      if (b[prop] && b[prop].constructor === Object) {
        if (a[prop] === undefined) {
          a[prop] = {};
        }
        if (a[prop].constructor === Object) {
          exports.deepExtend(a[prop], b[prop], protoExtend); // NOTE: allowDeletion not propagated!
        } else {
          copyOrDelete(a, b, prop, allowDeletion);
        }
      } else if (Array.isArray(b[prop])) {
        a[prop] = [];
        for (var i = 0; i < b[prop].length; i++) {
          a[prop].push(b[prop][i]);
        }
      } else {
        copyOrDelete(a, b, prop, allowDeletion);
      }
    }
  }
  return a;
};

/**
 * Test whether all elements in two arrays are equal.
 * @param {Array} a
 * @param {Array} b
 * @return {boolean} Returns true if both arrays have the same length and same
 *                   elements.
 */
exports.equalArray = function (a, b) {
  if (a.length != b.length) return false;

  for (var i = 0, len = a.length; i < len; i++) {
    if (a[i] != b[i]) return false;
  }

  return true;
};

/**
 * Convert an object to another type
 * @param {boolean | number | string | Date | Moment | Null | undefined} object
 * @param {string | undefined} type   Name of the type. Available types:
 *                                    'Boolean', 'Number', 'String',
 *                                    'Date', 'Moment', ISODate', 'ASPDate'.
 * @return {*} object
 * @throws Error
 */
exports.convert = function (object, type) {
  var match;

  if (object === undefined) {
    return undefined;
  }
  if (object === null) {
    return null;
  }

  if (!type) {
    return object;
  }
  if (!(typeof type === 'string') && !(type instanceof String)) {
    throw new Error('Type must be a string');
  }

  //noinspection FallthroughInSwitchStatementJS
  switch (type) {
    case 'boolean':
    case 'Boolean':
      return Boolean(object);

    case 'number':
    case 'Number':
      if (exports.isString(object) && !isNaN(Date.parse(object))) {
        return moment(object).valueOf();
      } else {
        return Number(object.valueOf());
      }
    case 'string':
    case 'String':
      return String(object);

    case 'Date':
      if (exports.isNumber(object)) {
        return new Date(object);
      }
      if (object instanceof Date) {
        return new Date(object.valueOf());
      } else if (moment.isMoment(object)) {
        return new Date(object.valueOf());
      }
      if (exports.isString(object)) {
        match = ASPDateRegex.exec(object);
        if (match) {
          // object is an ASP date
          return new Date(Number(match[1])); // parse number
        } else {
          return moment(new Date(object)).toDate(); // parse string
        }
      } else {
        throw new Error('Cannot convert object of type ' + exports.getType(object) + ' to type Date');
      }

    case 'Moment':
      if (exports.isNumber(object)) {
        return moment(object);
      }
      if (object instanceof Date) {
        return moment(object.valueOf());
      } else if (moment.isMoment(object)) {
        return moment(object);
      }
      if (exports.isString(object)) {
        match = ASPDateRegex.exec(object);
        if (match) {
          // object is an ASP date
          return moment(Number(match[1])); // parse number
        } else {
          return moment(object); // parse string
        }
      } else {
        throw new Error('Cannot convert object of type ' + exports.getType(object) + ' to type Date');
      }

    case 'ISODate':
      if (exports.isNumber(object)) {
        return new Date(object);
      } else if (object instanceof Date) {
        return object.toISOString();
      } else if (moment.isMoment(object)) {
        return object.toDate().toISOString();
      } else if (exports.isString(object)) {
        match = ASPDateRegex.exec(object);
        if (match) {
          // object is an ASP date
          return new Date(Number(match[1])).toISOString(); // parse number
        } else {
          return moment(object).format(); // ISO 8601
        }
      } else {
        throw new Error('Cannot convert object of type ' + exports.getType(object) + ' to type ISODate');
      }

    case 'ASPDate':
      if (exports.isNumber(object)) {
        return '/Date(' + object + ')/';
      } else if (object instanceof Date) {
        return '/Date(' + object.valueOf() + ')/';
      } else if (exports.isString(object)) {
        match = ASPDateRegex.exec(object);
        var value;
        if (match) {
          // object is an ASP date
          value = new Date(Number(match[1])).valueOf(); // parse number
        } else {
          value = new Date(object).valueOf(); // parse string
        }
        return '/Date(' + value + ')/';
      } else {
        throw new Error('Cannot convert object of type ' + exports.getType(object) + ' to type ASPDate');
      }

    default:
      throw new Error('Unknown type "' + type + '"');
  }
};

// parse ASP.Net Date pattern,
// for example '/Date(1198908717056)/' or '/Date(1198908717056-0700)/'
// code from http://momentjs.com/
var ASPDateRegex = /^\/?Date\((\-?\d+)/i;

/**
 * Get the type of an object, for example exports.getType([]) returns 'Array'
 * @param {*} object
 * @return {string} type
 */
exports.getType = function (object) {
  var type = typeof object === 'undefined' ? 'undefined' : (0, _typeof3['default'])(object);

  if (type == 'object') {
    if (object === null) {
      return 'null';
    }
    if (object instanceof Boolean) {
      return 'Boolean';
    }
    if (object instanceof Number) {
      return 'Number';
    }
    if (object instanceof String) {
      return 'String';
    }
    if (Array.isArray(object)) {
      return 'Array';
    }
    if (object instanceof Date) {
      return 'Date';
    }
    return 'Object';
  } else if (type == 'number') {
    return 'Number';
  } else if (type == 'boolean') {
    return 'Boolean';
  } else if (type == 'string') {
    return 'String';
  } else if (type === undefined) {
    return 'undefined';
  }

  return type;
};

/**
 * Used to extend an array and copy it. This is used to propagate paths recursively.
 *
 * @param {Array} arr
 * @param {*} newValue
 * @returns {Array}
 */
exports.copyAndExtendArray = function (arr, newValue) {
  var newArr = [];
  for (var i = 0; i < arr.length; i++) {
    newArr.push(arr[i]);
  }
  newArr.push(newValue);
  return newArr;
};

/**
 * Used to extend an array and copy it. This is used to propagate paths recursively.
 *
 * @param {Array} arr
 * @returns {Array}
 */
exports.copyArray = function (arr) {
  var newArr = [];
  for (var i = 0; i < arr.length; i++) {
    newArr.push(arr[i]);
  }
  return newArr;
};

/**
 * Retrieve the absolute left value of a DOM element
 * @param {Element} elem        A dom element, for example a div
 * @return {number} left        The absolute left position of this element
 *                              in the browser page.
 */
exports.getAbsoluteLeft = function (elem) {
  return elem.getBoundingClientRect().left;
};

exports.getAbsoluteRight = function (elem) {
  return elem.getBoundingClientRect().right;
};

/**
 * Retrieve the absolute top value of a DOM element
 * @param {Element} elem        A dom element, for example a div
 * @return {number} top        The absolute top position of this element
 *                              in the browser page.
 */
exports.getAbsoluteTop = function (elem) {
  return elem.getBoundingClientRect().top;
};

/**
 * add a className to the given elements style
 * @param {Element} elem
 * @param {string} classNames
 */
exports.addClassName = function (elem, classNames) {
  var classes = elem.className.split(' ');
  var newClasses = classNames.split(' ');
  classes = classes.concat(newClasses.filter(function (className) {
    return classes.indexOf(className) < 0;
  }));
  elem.className = classes.join(' ');
};

/**
 * add a className to the given elements style
 * @param {Element} elem
 * @param {string} classNames
 */
exports.removeClassName = function (elem, classNames) {
  var classes = elem.className.split(' ');
  var oldClasses = classNames.split(' ');
  classes = classes.filter(function (className) {
    return oldClasses.indexOf(className) < 0;
  });
  elem.className = classes.join(' ');
};

/**
 * For each method for both arrays and objects.
 * In case of an array, the built-in Array.forEach() is applied. (**No, it's not!**)
 * In case of an Object, the method loops over all properties of the object.
 * @param {Object | Array} object   An Object or Array
 * @param {function} callback       Callback method, called for each item in
 *                                  the object or array with three parameters:
 *                                  callback(value, index, object)
 */
exports.forEach = function (object, callback) {
  var i, len;
  if (Array.isArray(object)) {
    // array
    for (i = 0, len = object.length; i < len; i++) {
      callback(object[i], i, object);
    }
  } else {
    // object
    for (i in object) {
      if (object.hasOwnProperty(i)) {
        callback(object[i], i, object);
      }
    }
  }
};

/**
 * Convert an object into an array: all objects properties are put into the
 * array. The resulting array is unordered.
 * @param {Object} object
 * @returns {Array} array
 */
exports.toArray = function (object) {
  var array = [];

  for (var prop in object) {
    if (object.hasOwnProperty(prop)) array.push(object[prop]);
  }

  return array;
};

/**
 * Update a property in an object
 * @param {Object} object
 * @param {string} key
 * @param {*} value
 * @return {Boolean} changed
 */
exports.updateProperty = function (object, key, value) {
  if (object[key] !== value) {
    object[key] = value;
    return true;
  } else {
    return false;
  }
};

/**
 * Throttle the given function to be only executed once per animation frame
 * @param {function} fn
 * @returns {function} Returns the throttled function
 */
exports.throttle = function (fn) {
  var scheduled = false;

  return function throttled() {
    if (!scheduled) {
      scheduled = true;
      requestAnimationFrame(function () {
        scheduled = false;
        fn();
      });
    }
  };
};

/**
 * Add and event listener. Works for all browsers
 * @param {Element}     element    An html element
 * @param {string}      action     The action, for example "click",
 *                                 without the prefix "on"
 * @param {function}    listener   The callback function to be executed
 * @param {boolean}     [useCapture]
 */
exports.addEventListener = function (element, action, listener, useCapture) {
  if (element.addEventListener) {
    if (useCapture === undefined) useCapture = false;

    if (action === "mousewheel" && navigator.userAgent.indexOf("Firefox") >= 0) {
      action = "DOMMouseScroll"; // For Firefox
    }

    element.addEventListener(action, listener, useCapture);
  } else {
    element.attachEvent("on" + action, listener); // IE browsers
  }
};

/**
 * Remove an event listener from an element
 * @param {Element}     element         An html dom element
 * @param {string}      action          The name of the event, for example "mousedown"
 * @param {function}    listener        The listener function
 * @param {boolean}     [useCapture]
 */
exports.removeEventListener = function (element, action, listener, useCapture) {
  if (element.removeEventListener) {
    // non-IE browsers
    if (useCapture === undefined) useCapture = false;

    if (action === "mousewheel" && navigator.userAgent.indexOf("Firefox") >= 0) {
      action = "DOMMouseScroll"; // For Firefox
    }

    element.removeEventListener(action, listener, useCapture);
  } else {
    // IE browsers
    element.detachEvent("on" + action, listener);
  }
};

/**
 * Cancels the event if it is cancelable, without stopping further propagation of the event.
 * @param {Event} event
 */
exports.preventDefault = function (event) {
  if (!event) event = window.event;

  if (event.preventDefault) {
    event.preventDefault(); // non-IE browsers
  } else {
    event.returnValue = false; // IE browsers
  }
};

/**
 * Get HTML element which is the target of the event
 * @param {Event} event
 * @return {Element} target element
 */
exports.getTarget = function (event) {
  // code from http://www.quirksmode.org/js/events_properties.html
  if (!event) {
    event = window.event;
  }

  var target;

  if (event.target) {
    target = event.target;
  } else if (event.srcElement) {
    target = event.srcElement;
  }

  if (target.nodeType != undefined && target.nodeType == 3) {
    // defeat Safari bug
    target = target.parentNode;
  }

  return target;
};

/**
 * Check if given element contains given parent somewhere in the DOM tree
 * @param {Element} element
 * @param {Element} parent
 * @returns {boolean}
 */
exports.hasParent = function (element, parent) {
  var e = element;

  while (e) {
    if (e === parent) {
      return true;
    }
    e = e.parentNode;
  }

  return false;
};

exports.option = {};

/**
 * Convert a value into a boolean
 * @param {Boolean | function | undefined} value
 * @param {boolean} [defaultValue]
 * @returns {Boolean} bool
 */
exports.option.asBoolean = function (value, defaultValue) {
  if (typeof value == 'function') {
    value = value();
  }

  if (value != null) {
    return value != false;
  }

  return defaultValue || null;
};

/**
 * Convert a value into a number
 * @param {Boolean | function | undefined} value
 * @param {number} [defaultValue]
 * @returns {number} number
 */
exports.option.asNumber = function (value, defaultValue) {
  if (typeof value == 'function') {
    value = value();
  }

  if (value != null) {
    return Number(value) || defaultValue || null;
  }

  return defaultValue || null;
};

/**
 * Convert a value into a string
 * @param {string | function | undefined} value
 * @param {string} [defaultValue]
 * @returns {String} str
 */
exports.option.asString = function (value, defaultValue) {
  if (typeof value == 'function') {
    value = value();
  }

  if (value != null) {
    return String(value);
  }

  return defaultValue || null;
};

/**
 * Convert a size or location into a string with pixels or a percentage
 * @param {string | number | function | undefined} value
 * @param {string} [defaultValue]
 * @returns {String} size
 */
exports.option.asSize = function (value, defaultValue) {
  if (typeof value == 'function') {
    value = value();
  }

  if (exports.isString(value)) {
    return value;
  } else if (exports.isNumber(value)) {
    return value + 'px';
  } else {
    return defaultValue || null;
  }
};

/**
 * Convert a value into a DOM element
 * @param {HTMLElement | function | undefined} value
 * @param {HTMLElement} [defaultValue]
 * @returns {HTMLElement | null} dom
 */
exports.option.asElement = function (value, defaultValue) {
  if (typeof value == 'function') {
    value = value();
  }

  return value || defaultValue || null;
};

/**
 * http://stackoverflow.com/questions/5623838/rgb-to-hex-and-hex-to-rgb
 *
 * @param {string} hex
 * @returns {{r: *, g: *, b: *}} | 255 range
 */
exports.hexToRGB = function (hex) {
  // Expand shorthand form (e.g. "03F") to full form (e.g. "0033FF")
  var shorthandRegex = /^#?([a-f\d])([a-f\d])([a-f\d])$/i;
  hex = hex.replace(shorthandRegex, function (m, r, g, b) {
    return r + r + g + g + b + b;
  });
  var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
  return result ? {
    r: parseInt(result[1], 16),
    g: parseInt(result[2], 16),
    b: parseInt(result[3], 16)
  } : null;
};

/**
 * This function takes color in hex format or rgb() or rgba() format and overrides the opacity. Returns rgba() string.
 * @param {string} color
 * @param {number} opacity
 * @returns {String}
 */
exports.overrideOpacity = function (color, opacity) {
  var rgb;
  if (color.indexOf("rgba") != -1) {
    return color;
  } else if (color.indexOf("rgb") != -1) {
    rgb = color.substr(color.indexOf("(") + 1).replace(")", "").split(",");
    return "rgba(" + rgb[0] + "," + rgb[1] + "," + rgb[2] + "," + opacity + ")";
  } else {
    rgb = exports.hexToRGB(color);
    if (rgb == null) {
      return color;
    } else {
      return "rgba(" + rgb.r + "," + rgb.g + "," + rgb.b + "," + opacity + ")";
    }
  }
};

/**
 *
 * @param {number} red     0 -- 255
 * @param {number} green   0 -- 255
 * @param {number} blue    0 -- 255
 * @returns {String}
 * @constructor
 */
exports.RGBToHex = function (red, green, blue) {
  return "#" + ((1 << 24) + (red << 16) + (green << 8) + blue).toString(16).slice(1);
};

/**
 * Parse a color property into an object with border, background, and
 * highlight colors
 * @param {Object | String} color
 * @return {Object} colorObject
 */
exports.parseColor = function (color) {
  var c;
  if (exports.isString(color) === true) {
    if (exports.isValidRGB(color) === true) {
      var rgb = color.substr(4).substr(0, color.length - 5).split(',').map(function (value) {
        return parseInt(value);
      });
      color = exports.RGBToHex(rgb[0], rgb[1], rgb[2]);
    }
    if (exports.isValidHex(color) === true) {
      var hsv = exports.hexToHSV(color);
      var lighterColorHSV = { h: hsv.h, s: hsv.s * 0.8, v: Math.min(1, hsv.v * 1.02) };
      var darkerColorHSV = { h: hsv.h, s: Math.min(1, hsv.s * 1.25), v: hsv.v * 0.8 };
      var darkerColorHex = exports.HSVToHex(darkerColorHSV.h, darkerColorHSV.s, darkerColorHSV.v);
      var lighterColorHex = exports.HSVToHex(lighterColorHSV.h, lighterColorHSV.s, lighterColorHSV.v);
      c = {
        background: color,
        border: darkerColorHex,
        highlight: {
          background: lighterColorHex,
          border: darkerColorHex
        },
        hover: {
          background: lighterColorHex,
          border: darkerColorHex
        }
      };
    } else {
      c = {
        background: color,
        border: color,
        highlight: {
          background: color,
          border: color
        },
        hover: {
          background: color,
          border: color
        }
      };
    }
  } else {
    c = {};
    c.background = color.background || undefined;
    c.border = color.border || undefined;

    if (exports.isString(color.highlight)) {
      c.highlight = {
        border: color.highlight,
        background: color.highlight
      };
    } else {
      c.highlight = {};
      c.highlight.background = color.highlight && color.highlight.background || undefined;
      c.highlight.border = color.highlight && color.highlight.border || undefined;
    }

    if (exports.isString(color.hover)) {
      c.hover = {
        border: color.hover,
        background: color.hover
      };
    } else {
      c.hover = {};
      c.hover.background = color.hover && color.hover.background || undefined;
      c.hover.border = color.hover && color.hover.border || undefined;
    }
  }

  return c;
};

/**
 * http://www.javascripter.net/faq/rgb2hsv.htm
 *
 * @param {number} red
 * @param {number} green
 * @param {number} blue
 * @returns {{h: number, s: number, v: number}}
 * @constructor
 */
exports.RGBToHSV = function (red, green, blue) {
  red = red / 255;green = green / 255;blue = blue / 255;
  var minRGB = Math.min(red, Math.min(green, blue));
  var maxRGB = Math.max(red, Math.max(green, blue));

  // Black-gray-white
  if (minRGB == maxRGB) {
    return { h: 0, s: 0, v: minRGB };
  }

  // Colors other than black-gray-white:
  var d = red == minRGB ? green - blue : blue == minRGB ? red - green : blue - red;
  var h = red == minRGB ? 3 : blue == minRGB ? 1 : 5;
  var hue = 60 * (h - d / (maxRGB - minRGB)) / 360;
  var saturation = (maxRGB - minRGB) / maxRGB;
  var value = maxRGB;
  return { h: hue, s: saturation, v: value };
};

var cssUtil = {
  // split a string with css styles into an object with key/values
  split: function split(cssText) {
    var styles = {};

    cssText.split(';').forEach(function (style) {
      if (style.trim() != '') {
        var parts = style.split(':');
        var key = parts[0].trim();
        var value = parts[1].trim();
        styles[key] = value;
      }
    });

    return styles;
  },

  // build a css text string from an object with key/values
  join: function join(styles) {
    return (0, _keys2['default'])(styles).map(function (key) {
      return key + ': ' + styles[key];
    }).join('; ');
  }
};

/**
 * Append a string with css styles to an element
 * @param {Element} element
 * @param {string} cssText
 */
exports.addCssText = function (element, cssText) {
  var currentStyles = cssUtil.split(element.style.cssText);
  var newStyles = cssUtil.split(cssText);
  var styles = exports.extend(currentStyles, newStyles);

  element.style.cssText = cssUtil.join(styles);
};

/**
 * Remove a string with css styles from an element
 * @param {Element} element
 * @param {string} cssText
 */
exports.removeCssText = function (element, cssText) {
  var styles = cssUtil.split(element.style.cssText);
  var removeStyles = cssUtil.split(cssText);

  for (var key in removeStyles) {
    if (removeStyles.hasOwnProperty(key)) {
      delete styles[key];
    }
  }

  element.style.cssText = cssUtil.join(styles);
};

/**
 * https://gist.github.com/mjijackson/5311256
 * @param {number} h
 * @param {number} s
 * @param {number} v
 * @returns {{r: number, g: number, b: number}}
 * @constructor
 */
exports.HSVToRGB = function (h, s, v) {
  var r, g, b;

  var i = Math.floor(h * 6);
  var f = h * 6 - i;
  var p = v * (1 - s);
  var q = v * (1 - f * s);
  var t = v * (1 - (1 - f) * s);

  switch (i % 6) {
    case 0:
      r = v, g = t, b = p;break;
    case 1:
      r = q, g = v, b = p;break;
    case 2:
      r = p, g = v, b = t;break;
    case 3:
      r = p, g = q, b = v;break;
    case 4:
      r = t, g = p, b = v;break;
    case 5:
      r = v, g = p, b = q;break;
  }

  return { r: Math.floor(r * 255), g: Math.floor(g * 255), b: Math.floor(b * 255) };
};

exports.HSVToHex = function (h, s, v) {
  var rgb = exports.HSVToRGB(h, s, v);
  return exports.RGBToHex(rgb.r, rgb.g, rgb.b);
};

exports.hexToHSV = function (hex) {
  var rgb = exports.hexToRGB(hex);
  return exports.RGBToHSV(rgb.r, rgb.g, rgb.b);
};

exports.isValidHex = function (hex) {
  var isOk = /(^#[0-9A-F]{6}$)|(^#[0-9A-F]{3}$)/i.test(hex);
  return isOk;
};

exports.isValidRGB = function (rgb) {
  rgb = rgb.replace(" ", "");
  var isOk = /rgb\((\d{1,3}),(\d{1,3}),(\d{1,3})\)/i.test(rgb);
  return isOk;
};
exports.isValidRGBA = function (rgba) {
  rgba = rgba.replace(" ", "");
  var isOk = /rgba\((\d{1,3}),(\d{1,3}),(\d{1,3}),(.{1,3})\)/i.test(rgba);
  return isOk;
};

/**
 * This recursively redirects the prototype of JSON objects to the referenceObject
 * This is used for default options.
 *
 * @param {Array.<string>} fields
 * @param {Object} referenceObject
 * @returns {*}
 */
exports.selectiveBridgeObject = function (fields, referenceObject) {
  if (referenceObject !== null && (typeof referenceObject === 'undefined' ? 'undefined' : (0, _typeof3['default'])(referenceObject)) === "object") {
    // !!! typeof null === 'object'
    var objectTo = (0, _create2['default'])(referenceObject);
    for (var i = 0; i < fields.length; i++) {
      if (referenceObject.hasOwnProperty(fields[i])) {
        if ((0, _typeof3['default'])(referenceObject[fields[i]]) == "object") {
          objectTo[fields[i]] = exports.bridgeObject(referenceObject[fields[i]]);
        }
      }
    }
    return objectTo;
  } else {
    return null;
  }
};

/**
 * This recursively redirects the prototype of JSON objects to the referenceObject
 * This is used for default options.
 *
 * @param {Object} referenceObject
 * @returns {*}
 */
exports.bridgeObject = function (referenceObject) {
  if (referenceObject !== null && (typeof referenceObject === 'undefined' ? 'undefined' : (0, _typeof3['default'])(referenceObject)) === "object") {
    // !!! typeof null === 'object'
    var objectTo = (0, _create2['default'])(referenceObject);
    if (referenceObject instanceof Element) {
      // Avoid bridging DOM objects
      objectTo = referenceObject;
    } else {
      objectTo = (0, _create2['default'])(referenceObject);
      for (var i in referenceObject) {
        if (referenceObject.hasOwnProperty(i)) {
          if ((0, _typeof3['default'])(referenceObject[i]) == "object") {
            objectTo[i] = exports.bridgeObject(referenceObject[i]);
          }
        }
      }
    }
    return objectTo;
  } else {
    return null;
  }
};

/**
 * This method provides a stable sort implementation, very fast for presorted data
 *
 * @param {Array} a the array
 * @param {function} compare an order comparator
 * @returns {Array}
 */
exports.insertSort = function (a, compare) {
  for (var i = 0; i < a.length; i++) {
    var k = a[i];
    for (var j = i; j > 0 && compare(k, a[j - 1]) < 0; j--) {
      a[j] = a[j - 1];
    }
    a[j] = k;
  }
  return a;
};

/**
 * This is used to set the options of subobjects in the options object.
 *
 * A requirement of these subobjects is that they have an 'enabled' element
 * which is optional for the user but mandatory for the program.
 *
 * The added value here of the merge is that option 'enabled' is set as required.
 *
 *
 * @param {object} mergeTarget   | either this.options or the options used for the groups.
 * @param {object} options       | options
 * @param {string} option        | option key in the options argument
 * @param {object} globalOptions | global options, passed in to determine value of option 'enabled'
 */
exports.mergeOptions = function (mergeTarget, options, option) {
  var globalOptions = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};

  // Local helpers
  var isPresent = function isPresent(obj) {
    return obj !== null && obj !== undefined;
  };

  var isObject = function isObject(obj) {
    return obj !== null && (typeof obj === 'undefined' ? 'undefined' : (0, _typeof3['default'])(obj)) === 'object';
  };

  // https://stackoverflow.com/a/34491287/1223531
  var isEmpty = function isEmpty(obj) {
    for (var x in obj) {
      if (obj.hasOwnProperty(x)) return false;
    }
    return true;
  };

  // Guards
  if (!isObject(mergeTarget)) {
    throw new Error('Parameter mergeTarget must be an object');
  }

  if (!isObject(options)) {
    throw new Error('Parameter options must be an object');
  }

  if (!isPresent(option)) {
    throw new Error('Parameter option must have a value');
  }

  if (!isObject(globalOptions)) {
    throw new Error('Parameter globalOptions must be an object');
  }

  //
  // Actual merge routine, separated from main logic
  // Only a single level of options is merged. Deeper levels are ref'd. This may actually be an issue.
  //
  var doMerge = function doMerge(target, options, option) {
    if (!isObject(target[option])) {
      target[option] = {};
    }

    var src = options[option];
    var dst = target[option];
    for (var prop in src) {
      if (src.hasOwnProperty(prop)) {
        dst[prop] = src[prop];
      }
    }
  };

  // Local initialization
  var srcOption = options[option];
  var globalPassed = isObject(globalOptions) && !isEmpty(globalOptions);
  var globalOption = globalPassed ? globalOptions[option] : undefined;
  var globalEnabled = globalOption ? globalOption.enabled : undefined;

  /////////////////////////////////////////
  // Main routine
  /////////////////////////////////////////
  if (srcOption === undefined) {
    return; // Nothing to do
  }

  if (typeof srcOption === 'boolean') {
    if (!isObject(mergeTarget[option])) {
      mergeTarget[option] = {};
    }

    mergeTarget[option].enabled = srcOption;
    return;
  }

  if (srcOption === null && !isObject(mergeTarget[option])) {
    // If possible, explicit copy from globals
    if (isPresent(globalOption)) {
      mergeTarget[option] = (0, _create2['default'])(globalOption);
    } else {
      return; // Nothing to do
    }
  }

  if (!isObject(srcOption)) {
    return;
  }

  //
  // Ensure that 'enabled' is properly set. It is required internally
  // Note that the value from options will always overwrite the existing value
  //
  var enabled = true; // default value

  if (srcOption.enabled !== undefined) {
    enabled = srcOption.enabled;
  } else {
    // Take from globals, if present
    if (globalEnabled !== undefined) {
      enabled = globalOption.enabled;
    }
  }

  doMerge(mergeTarget, options, option);
  mergeTarget[option].enabled = enabled;
};

/**
 * This function does a binary search for a visible item in a sorted list. If we find a visible item, the code that uses
 * this function will then iterate in both directions over this sorted list to find all visible items.
 *
 * @param {Item[]} orderedItems       | Items ordered by start
 * @param {function} comparator       | -1 is lower, 0 is equal, 1 is higher
 * @param {string} field
 * @param {string} field2
 * @returns {number}
 * @private
 */
exports.binarySearchCustom = function (orderedItems, comparator, field, field2) {
  var maxIterations = 10000;
  var iteration = 0;
  var low = 0;
  var high = orderedItems.length - 1;

  while (low <= high && iteration < maxIterations) {
    var middle = Math.floor((low + high) / 2);

    var item = orderedItems[middle];
    var value = field2 === undefined ? item[field] : item[field][field2];

    var searchResult = comparator(value);
    if (searchResult == 0) {
      // jihaa, found a visible item!
      return middle;
    } else if (searchResult == -1) {
      // it is too small --> increase low
      low = middle + 1;
    } else {
      // it is too big --> decrease high
      high = middle - 1;
    }

    iteration++;
  }

  return -1;
};

/**
 * This function does a binary search for a specific value in a sorted array. If it does not exist but is in between of
 * two values, we return either the one before or the one after, depending on user input
 * If it is found, we return the index, else -1.
 *
 * @param {Array} orderedItems
 * @param {{start: number, end: number}} target
 * @param {string} field
 * @param {string} sidePreference   'before' or 'after'
 * @param {function} comparator an optional comparator, returning -1,0,1 for <,==,>.
 * @returns {number}
 * @private
 */
exports.binarySearchValue = function (orderedItems, target, field, sidePreference, comparator) {
  var maxIterations = 10000;
  var iteration = 0;
  var low = 0;
  var high = orderedItems.length - 1;
  var prevValue, value, nextValue, middle;

  comparator = comparator != undefined ? comparator : function (a, b) {
    return a == b ? 0 : a < b ? -1 : 1;
  };

  while (low <= high && iteration < maxIterations) {
    // get a new guess
    middle = Math.floor(0.5 * (high + low));
    prevValue = orderedItems[Math.max(0, middle - 1)][field];
    value = orderedItems[middle][field];
    nextValue = orderedItems[Math.min(orderedItems.length - 1, middle + 1)][field];

    if (comparator(value, target) == 0) {
      // we found the target
      return middle;
    } else if (comparator(prevValue, target) < 0 && comparator(value, target) > 0) {
      // target is in between of the previous and the current
      return sidePreference == 'before' ? Math.max(0, middle - 1) : middle;
    } else if (comparator(value, target) < 0 && comparator(nextValue, target) > 0) {
      // target is in between of the current and the next
      return sidePreference == 'before' ? middle : Math.min(orderedItems.length - 1, middle + 1);
    } else {
      // didnt find the target, we need to change our boundaries.
      if (comparator(value, target) < 0) {
        // it is too small --> increase low
        low = middle + 1;
      } else {
        // it is too big --> decrease high
        high = middle - 1;
      }
    }
    iteration++;
  }

  // didnt find anything. Return -1.
  return -1;
};

/*
 * Easing Functions - inspired from http://gizma.com/easing/
 * only considering the t value for the range [0, 1] => [0, 1]
 * https://gist.github.com/gre/1650294
 */
exports.easingFunctions = {
  // no easing, no acceleration
  linear: function linear(t) {
    return t;
  },
  // accelerating from zero velocity
  easeInQuad: function easeInQuad(t) {
    return t * t;
  },
  // decelerating to zero velocity
  easeOutQuad: function easeOutQuad(t) {
    return t * (2 - t);
  },
  // acceleration until halfway, then deceleration
  easeInOutQuad: function easeInOutQuad(t) {
    return t < .5 ? 2 * t * t : -1 + (4 - 2 * t) * t;
  },
  // accelerating from zero velocity
  easeInCubic: function easeInCubic(t) {
    return t * t * t;
  },
  // decelerating to zero velocity
  easeOutCubic: function easeOutCubic(t) {
    return --t * t * t + 1;
  },
  // acceleration until halfway, then deceleration
  easeInOutCubic: function easeInOutCubic(t) {
    return t < .5 ? 4 * t * t * t : (t - 1) * (2 * t - 2) * (2 * t - 2) + 1;
  },
  // accelerating from zero velocity
  easeInQuart: function easeInQuart(t) {
    return t * t * t * t;
  },
  // decelerating to zero velocity
  easeOutQuart: function easeOutQuart(t) {
    return 1 - --t * t * t * t;
  },
  // acceleration until halfway, then deceleration
  easeInOutQuart: function easeInOutQuart(t) {
    return t < .5 ? 8 * t * t * t * t : 1 - 8 * --t * t * t * t;
  },
  // accelerating from zero velocity
  easeInQuint: function easeInQuint(t) {
    return t * t * t * t * t;
  },
  // decelerating to zero velocity
  easeOutQuint: function easeOutQuint(t) {
    return 1 + --t * t * t * t * t;
  },
  // acceleration until halfway, then deceleration
  easeInOutQuint: function easeInOutQuint(t) {
    return t < .5 ? 16 * t * t * t * t * t : 1 + 16 * --t * t * t * t * t;
  }
};

exports.getScrollBarWidth = function () {
  var inner = document.createElement('p');
  inner.style.width = "100%";
  inner.style.height = "200px";

  var outer = document.createElement('div');
  outer.style.position = "absolute";
  outer.style.top = "0px";
  outer.style.left = "0px";
  outer.style.visibility = "hidden";
  outer.style.width = "200px";
  outer.style.height = "150px";
  outer.style.overflow = "hidden";
  outer.appendChild(inner);

  document.body.appendChild(outer);
  var w1 = inner.offsetWidth;
  outer.style.overflow = 'scroll';
  var w2 = inner.offsetWidth;
  if (w1 == w2) w2 = outer.clientWidth;

  document.body.removeChild(outer);

  return w1 - w2;
};

exports.topMost = function (pile, accessors) {
  var candidate = void 0;
  if (!Array.isArray(accessors)) {
    accessors = [accessors];
  }
  var _iteratorNormalCompletion = true;
  var _didIteratorError = false;
  var _iteratorError = undefined;

  try {
    for (var _iterator = (0, _getIterator3['default'])(pile), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
      var member = _step.value;

      if (member) {
        candidate = member[accessors[0]];
        for (var i = 1; i < accessors.length; i++) {
          if (candidate) {
            candidate = candidate[accessors[i]];
          } else {
            continue;
          }
        }
        if (typeof candidate != 'undefined') {
          break;
        }
      }
    }
  } catch (err) {
    _didIteratorError = true;
    _iteratorError = err;
  } finally {
    try {
      if (!_iteratorNormalCompletion && _iterator['return']) {
        _iterator['return']();
      }
    } finally {
      if (_didIteratorError) {
        throw _iteratorError;
      }
    }
  }

  return candidate;
};

/***/ }),
/* 3 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = { "default": __webpack_require__(194), __esModule: true };

/***/ }),
/* 4 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = function (self, call) {
  if (!self) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return call && ((typeof call === "undefined" ? "undefined" : (0, _typeof3.default)(call)) === "object" || typeof call === "function") ? call : self;
};

/***/ }),
/* 5 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _setPrototypeOf = __webpack_require__(196);

var _setPrototypeOf2 = _interopRequireDefault(_setPrototypeOf);

var _create = __webpack_require__(29);

var _create2 = _interopRequireDefault(_create);

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = function (subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === "undefined" ? "undefined" : (0, _typeof3.default)(superClass)));
  }

  subClass.prototype = (0, _create2.default)(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      enumerable: false,
      writable: true,
      configurable: true
    }
  });
  if (superClass) _setPrototypeOf2.default ? (0, _setPrototypeOf2.default)(subClass, superClass) : subClass.__proto__ = superClass;
};

/***/ }),
/* 6 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _iterator = __webpack_require__(142);

var _iterator2 = _interopRequireDefault(_iterator);

var _symbol = __webpack_require__(144);

var _symbol2 = _interopRequireDefault(_symbol);

var _typeof = typeof _symbol2.default === "function" && typeof _iterator2.default === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof _symbol2.default === "function" && obj.constructor === _symbol2.default && obj !== _symbol2.default.prototype ? "symbol" : typeof obj; };

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = typeof _symbol2.default === "function" && _typeof(_iterator2.default) === "symbol" ? function (obj) {
  return typeof obj === "undefined" ? "undefined" : _typeof(obj);
} : function (obj) {
  return obj && typeof _symbol2.default === "function" && obj.constructor === _symbol2.default && obj !== _symbol2.default.prototype ? "symbol" : typeof obj === "undefined" ? "undefined" : _typeof(obj);
};

/***/ }),
/* 7 */
/***/ (function(module, exports) {

var core = module.exports = { version: '2.5.1' };
if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef


/***/ }),
/* 8 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = { "default": __webpack_require__(140), __esModule: true };

/***/ }),
/* 9 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


// first check if moment.js is already loaded in the browser window, if so,
// use this instance. Else, load via commonjs.
module.exports = typeof window !== 'undefined' && window['moment'] || __webpack_require__(154);

/***/ }),
/* 10 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * Setup a mock hammer.js object, for unit testing.
 *
 * Inspiration: https://github.com/uber/deck.gl/pull/658
 *
 * @returns {{on: noop, off: noop, destroy: noop, emit: noop, get: get}}
 */
function hammerMock() {
  var noop = function noop() {};

  return {
    on: noop,
    off: noop,
    destroy: noop,
    emit: noop,

    get: function get(m) {
      //eslint-disable-line no-unused-vars
      return {
        set: noop
      };
    }
  };
}

if (typeof window !== 'undefined') {
  var propagating = __webpack_require__(175);
  var Hammer = window['Hammer'] || __webpack_require__(176);
  module.exports = propagating(Hammer, {
    preventDefault: 'mouse'
  });
} else {
  module.exports = function () {
    // hammer.js is only available in a browser, not in node.js. Replacing it with a mock object.
    return hammerMock();
  };
}

/***/ }),
/* 11 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _stringify = __webpack_require__(19);

var _stringify2 = _interopRequireDefault(_stringify);

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

var _keys = __webpack_require__(8);

var _keys2 = _interopRequireDefault(_keys);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var Queue = __webpack_require__(43);

/**
 * DataSet
 * // TODO: add a DataSet constructor DataSet(data, options)
 *
 * Usage:
 *     var dataSet = new DataSet({
 *         fieldId: '_id',
 *         type: {
 *             // ...
 *         }
 *     });
 *
 *     dataSet.add(item);
 *     dataSet.add(data);
 *     dataSet.update(item);
 *     dataSet.update(data);
 *     dataSet.remove(id);
 *     dataSet.remove(ids);
 *     var data = dataSet.get();
 *     var data = dataSet.get(id);
 *     var data = dataSet.get(ids);
 *     var data = dataSet.get(ids, options, data);
 *     dataSet.clear();
 *
 * A data set can:
 * - add/remove/update data
 * - gives triggers upon changes in the data
 * - can  import/export data in various data formats
 *
 * @param {Array} [data]    Optional array with initial data
 * @param {Object} [options]   Available options:
 *                             {string} fieldId Field name of the id in the
 *                                              items, 'id' by default.
 *                             {Object.<string, string} type
 *                                              A map with field names as key,
 *                                              and the field type as value.
 *                             {Object} queue   Queue changes to the DataSet,
 *                                              flush them all at once.
 *                                              Queue options:
 *                                              - {number} delay  Delay in ms, null by default
 *                                              - {number} max    Maximum number of entries in the queue, Infinity by default
 * @constructor DataSet
 */
function DataSet(data, options) {
  // correctly read optional arguments
  if (data && !Array.isArray(data)) {
    options = data;
    data = null;
  }

  this._options = options || {};
  this._data = {}; // map with data indexed by id
  this.length = 0; // number of items in the DataSet
  this._fieldId = this._options.fieldId || 'id'; // name of the field containing id
  this._type = {}; // internal field types (NOTE: this can differ from this._options.type)

  // all variants of a Date are internally stored as Date, so we can convert
  // from everything to everything (also from ISODate to Number for example)
  if (this._options.type) {
    var fields = (0, _keys2['default'])(this._options.type);
    for (var i = 0, len = fields.length; i < len; i++) {
      var field = fields[i];
      var value = this._options.type[field];
      if (value == 'Date' || value == 'ISODate' || value == 'ASPDate') {
        this._type[field] = 'Date';
      } else {
        this._type[field] = value;
      }
    }
  }

  this._subscribers = {}; // event subscribers

  // add initial data when provided
  if (data) {
    this.add(data);
  }

  this.setOptions(options);
}

/**
 * @param {Object} options   Available options:
 *                             {Object} queue   Queue changes to the DataSet,
 *                                              flush them all at once.
 *                                              Queue options:
 *                                              - {number} delay  Delay in ms, null by default
 *                                              - {number} max    Maximum number of entries in the queue, Infinity by default
 */
DataSet.prototype.setOptions = function (options) {
  if (options && options.queue !== undefined) {
    if (options.queue === false) {
      // delete queue if loaded
      if (this._queue) {
        this._queue.destroy();
        delete this._queue;
      }
    } else {
      // create queue and update its options
      if (!this._queue) {
        this._queue = Queue.extend(this, {
          replace: ['add', 'update', 'remove']
        });
      }

      if ((0, _typeof3['default'])(options.queue) === 'object') {
        this._queue.setOptions(options.queue);
      }
    }
  }
};

/**
 * Subscribe to an event, add an event listener
 * @param {string} event        Event name. Available events: 'add', 'update',
 *                              'remove'
 * @param {function} callback   Callback method. Called with three parameters:
 *                                  {string} event
 *                                  {Object | null} params
 *                                  {string | number} senderId
 */
DataSet.prototype.on = function (event, callback) {
  var subscribers = this._subscribers[event];
  if (!subscribers) {
    subscribers = [];
    this._subscribers[event] = subscribers;
  }

  subscribers.push({
    callback: callback
  });
};

/**
 * Unsubscribe from an event, remove an event listener
 * @param {string} event
 * @param {function} callback
 */
DataSet.prototype.off = function (event, callback) {
  var subscribers = this._subscribers[event];
  if (subscribers) {
    this._subscribers[event] = subscribers.filter(function (listener) {
      return listener.callback != callback;
    });
  }
};

/**
 * Trigger an event
 * @param {string} event
 * @param {Object | null} params
 * @param {string} [senderId]       Optional id of the sender.
 * @private
 */
DataSet.prototype._trigger = function (event, params, senderId) {
  if (event == '*') {
    throw new Error('Cannot trigger event *');
  }

  var subscribers = [];
  if (event in this._subscribers) {
    subscribers = subscribers.concat(this._subscribers[event]);
  }
  if ('*' in this._subscribers) {
    subscribers = subscribers.concat(this._subscribers['*']);
  }

  for (var i = 0, len = subscribers.length; i < len; i++) {
    var subscriber = subscribers[i];
    if (subscriber.callback) {
      subscriber.callback(event, params, senderId || null);
    }
  }
};

/**
 * Add data.
 * Adding an item will fail when there already is an item with the same id.
 * @param {Object | Array} data
 * @param {string} [senderId] Optional sender id
 * @return {Array.<string|number>} addedIds      Array with the ids of the added items
 */
DataSet.prototype.add = function (data, senderId) {
  var addedIds = [],
      id,
      me = this;

  if (Array.isArray(data)) {
    // Array
    for (var i = 0, len = data.length; i < len; i++) {
      id = me._addItem(data[i]);
      addedIds.push(id);
    }
  } else if (data && (typeof data === 'undefined' ? 'undefined' : (0, _typeof3['default'])(data)) === 'object') {
    // Single item
    id = me._addItem(data);
    addedIds.push(id);
  } else {
    throw new Error('Unknown dataType');
  }

  if (addedIds.length) {
    this._trigger('add', { items: addedIds }, senderId);
  }

  return addedIds;
};

/**
 * Update existing items. When an item does not exist, it will be created
 * @param {Object | Array} data
 * @param {string} [senderId] Optional sender id
 * @return {Array.<string|number>} updatedIds     The ids of the added or updated items
 * @throws {Error} Unknown Datatype
 */
DataSet.prototype.update = function (data, senderId) {
  var addedIds = [];
  var updatedIds = [];
  var oldData = [];
  var updatedData = [];
  var me = this;
  var fieldId = me._fieldId;

  var addOrUpdate = function addOrUpdate(item) {
    var id = item[fieldId];
    if (me._data[id]) {
      var oldItem = util.extend({}, me._data[id]);
      // update item
      id = me._updateItem(item);
      updatedIds.push(id);
      updatedData.push(item);
      oldData.push(oldItem);
    } else {
      // add new item
      id = me._addItem(item);
      addedIds.push(id);
    }
  };

  if (Array.isArray(data)) {
    // Array
    for (var i = 0, len = data.length; i < len; i++) {
      if (data[i] && (0, _typeof3['default'])(data[i]) === 'object') {
        addOrUpdate(data[i]);
      } else {
        console.warn('Ignoring input item, which is not an object at index ' + i);
      }
    }
  } else if (data && (typeof data === 'undefined' ? 'undefined' : (0, _typeof3['default'])(data)) === 'object') {
    // Single item
    addOrUpdate(data);
  } else {
    throw new Error('Unknown dataType');
  }

  if (addedIds.length) {
    this._trigger('add', { items: addedIds }, senderId);
  }
  if (updatedIds.length) {
    var props = { items: updatedIds, oldData: oldData, data: updatedData };
    // TODO: remove deprecated property 'data' some day
    //Object.defineProperty(props, 'data', {
    //  'get': (function() {
    //    console.warn('Property data is deprecated. Use DataSet.get(ids) to retrieve the new data, use the oldData property on this object to get the old data');
    //    return updatedData;
    //  }).bind(this)
    //});
    this._trigger('update', props, senderId);
  }

  return addedIds.concat(updatedIds);
};

/**
 * Get a data item or multiple items.
 *
 * Usage:
 *
 *     get()
 *     get(options: Object)
 *
 *     get(id: number | string)
 *     get(id: number | string, options: Object)
 *
 *     get(ids: number[] | string[])
 *     get(ids: number[] | string[], options: Object)
 *
 * Where:
 *
 * {number | string} id         The id of an item
 * {number[] | string{}} ids    An array with ids of items
 * {Object} options             An Object with options. Available options:
 * {string} [returnType]        Type of data to be returned.
 *                              Can be 'Array' (default) or 'Object'.
 * {Object.<string, string>} [type]
 * {string[]} [fields]          field names to be returned
 * {function} [filter]          filter items
 * {string | function} [order]  Order the items by a field name or custom sort function.
 * @param {Array} args
 * @returns {DataSet}
 * @throws Error
 */
DataSet.prototype.get = function (args) {
  // eslint-disable-line no-unused-vars
  var me = this;

  // parse the arguments
  var id, ids, options;
  var firstType = util.getType(arguments[0]);
  if (firstType == 'String' || firstType == 'Number') {
    // get(id [, options])
    id = arguments[0];
    options = arguments[1];
  } else if (firstType == 'Array') {
    // get(ids [, options])
    ids = arguments[0];
    options = arguments[1];
  } else {
    // get([, options])
    options = arguments[0];
  }

  // determine the return type
  var returnType;
  if (options && options.returnType) {
    var allowedValues = ['Array', 'Object'];
    returnType = allowedValues.indexOf(options.returnType) == -1 ? 'Array' : options.returnType;
  } else {
    returnType = 'Array';
  }

  // build options
  var type = options && options.type || this._options.type;
  var filter = options && options.filter;
  var items = [],
      item,
      itemIds,
      itemId,
      i,
      len;

  // convert items
  if (id != undefined) {
    // return a single item
    item = me._getItem(id, type);
    if (item && filter && !filter(item)) {
      item = null;
    }
  } else if (ids != undefined) {
    // return a subset of items
    for (i = 0, len = ids.length; i < len; i++) {
      item = me._getItem(ids[i], type);
      if (!filter || filter(item)) {
        items.push(item);
      }
    }
  } else {
    // return all items
    itemIds = (0, _keys2['default'])(this._data);
    for (i = 0, len = itemIds.length; i < len; i++) {
      itemId = itemIds[i];
      item = me._getItem(itemId, type);
      if (!filter || filter(item)) {
        items.push(item);
      }
    }
  }

  // order the results
  if (options && options.order && id == undefined) {
    this._sort(items, options.order);
  }

  // filter fields of the items
  if (options && options.fields) {
    var fields = options.fields;
    if (id != undefined) {
      item = this._filterFields(item, fields);
    } else {
      for (i = 0, len = items.length; i < len; i++) {
        items[i] = this._filterFields(items[i], fields);
      }
    }
  }

  // return the results
  if (returnType == 'Object') {
    var result = {},
        resultant;
    for (i = 0, len = items.length; i < len; i++) {
      resultant = items[i];
      result[resultant.id] = resultant;
    }
    return result;
  } else {
    if (id != undefined) {
      // a single item
      return item;
    } else {
      // just return our array
      return items;
    }
  }
};

/**
 * Get ids of all items or from a filtered set of items.
 * @param {Object} [options]    An Object with options. Available options:
 *                              {function} [filter] filter items
 *                              {string | function} [order] Order the items by
 *                                  a field name or custom sort function.
 * @return {Array.<string|number>} ids
 */
DataSet.prototype.getIds = function (options) {
  var data = this._data,
      filter = options && options.filter,
      order = options && options.order,
      type = options && options.type || this._options.type,
      itemIds = (0, _keys2['default'])(data),
      i,
      len,
      id,
      item,
      items,
      ids = [];

  if (filter) {
    // get filtered items
    if (order) {
      // create ordered list
      items = [];
      for (i = 0, len = itemIds.length; i < len; i++) {
        id = itemIds[i];
        item = this._getItem(id, type);
        if (filter(item)) {
          items.push(item);
        }
      }

      this._sort(items, order);

      for (i = 0, len = items.length; i < len; i++) {
        ids.push(items[i][this._fieldId]);
      }
    } else {
      // create unordered list
      for (i = 0, len = itemIds.length; i < len; i++) {
        id = itemIds[i];
        item = this._getItem(id, type);
        if (filter(item)) {
          ids.push(item[this._fieldId]);
        }
      }
    }
  } else {
    // get all items
    if (order) {
      // create an ordered list
      items = [];
      for (i = 0, len = itemIds.length; i < len; i++) {
        id = itemIds[i];
        items.push(data[id]);
      }

      this._sort(items, order);

      for (i = 0, len = items.length; i < len; i++) {
        ids.push(items[i][this._fieldId]);
      }
    } else {
      // create unordered list
      for (i = 0, len = itemIds.length; i < len; i++) {
        id = itemIds[i];
        item = data[id];
        ids.push(item[this._fieldId]);
      }
    }
  }

  return ids;
};

/**
 * Returns the DataSet itself. Is overwritten for example by the DataView,
 * which returns the DataSet it is connected to instead.
 * @returns {DataSet}
 */
DataSet.prototype.getDataSet = function () {
  return this;
};

/**
 * Execute a callback function for every item in the dataset.
 * @param {function} callback
 * @param {Object} [options]    Available options:
 *                              {Object.<string, string>} [type]
 *                              {string[]} [fields] filter fields
 *                              {function} [filter] filter items
 *                              {string | function} [order] Order the items by
 *                                  a field name or custom sort function.
 */
DataSet.prototype.forEach = function (callback, options) {
  var filter = options && options.filter,
      type = options && options.type || this._options.type,
      data = this._data,
      itemIds = (0, _keys2['default'])(data),
      i,
      len,
      item,
      id;

  if (options && options.order) {
    // execute forEach on ordered list
    var items = this.get(options);

    for (i = 0, len = items.length; i < len; i++) {
      item = items[i];
      id = item[this._fieldId];
      callback(item, id);
    }
  } else {
    // unordered
    for (i = 0, len = itemIds.length; i < len; i++) {
      id = itemIds[i];
      item = this._getItem(id, type);
      if (!filter || filter(item)) {
        callback(item, id);
      }
    }
  }
};

/**
 * Map every item in the dataset.
 * @param {function} callback
 * @param {Object} [options]    Available options:
 *                              {Object.<string, string>} [type]
 *                              {string[]} [fields] filter fields
 *                              {function} [filter] filter items
 *                              {string | function} [order] Order the items by
 *                                  a field name or custom sort function.
 * @return {Object[]} mappedItems
 */
DataSet.prototype.map = function (callback, options) {
  var filter = options && options.filter,
      type = options && options.type || this._options.type,
      mappedItems = [],
      data = this._data,
      itemIds = (0, _keys2['default'])(data),
      i,
      len,
      id,
      item;

  // convert and filter items
  for (i = 0, len = itemIds.length; i < len; i++) {
    id = itemIds[i];
    item = this._getItem(id, type);
    if (!filter || filter(item)) {
      mappedItems.push(callback(item, id));
    }
  }

  // order items
  if (options && options.order) {
    this._sort(mappedItems, options.order);
  }

  return mappedItems;
};

/**
 * Filter the fields of an item
 * @param {Object | null} item
 * @param {string[]} fields     Field names
 * @return {Object | null} filteredItem or null if no item is provided
 * @private
 */
DataSet.prototype._filterFields = function (item, fields) {
  if (!item) {
    // item is null
    return item;
  }

  var filteredItem = {},
      itemFields = (0, _keys2['default'])(item),
      len = itemFields.length,
      i,
      field;

  if (Array.isArray(fields)) {
    for (i = 0; i < len; i++) {
      field = itemFields[i];
      if (fields.indexOf(field) != -1) {
        filteredItem[field] = item[field];
      }
    }
  } else {
    for (i = 0; i < len; i++) {
      field = itemFields[i];
      if (fields.hasOwnProperty(field)) {
        filteredItem[fields[field]] = item[field];
      }
    }
  }

  return filteredItem;
};

/**
 * Sort the provided array with items
 * @param {Object[]} items
 * @param {string | function} order      A field name or custom sort function.
 * @private
 */
DataSet.prototype._sort = function (items, order) {
  if (util.isString(order)) {
    // order by provided field name
    var name = order; // field name
    items.sort(function (a, b) {
      var av = a[name];
      var bv = b[name];
      return av > bv ? 1 : av < bv ? -1 : 0;
    });
  } else if (typeof order === 'function') {
    // order by sort function
    items.sort(order);
  }
  // TODO: extend order by an Object {field:string, direction:string}
  //       where direction can be 'asc' or 'desc'
  else {
      throw new TypeError('Order must be a function or a string');
    }
};

/**
 * Remove an object by pointer or by id
 * @param {string | number | Object | Array.<string|number>} id Object or id, or an array with
 *                                              objects or ids to be removed
 * @param {string} [senderId] Optional sender id
 * @return {Array.<string|number>} removedIds
 */
DataSet.prototype.remove = function (id, senderId) {
  var removedIds = [],
      removedItems = [],
      ids = [],
      i,
      len,
      itemId,
      item;

  // force everything to be an array for simplicity
  ids = Array.isArray(id) ? id : [id];

  for (i = 0, len = ids.length; i < len; i++) {
    item = this._remove(ids[i]);
    if (item) {
      itemId = item[this._fieldId];
      if (itemId != undefined) {
        removedIds.push(itemId);
        removedItems.push(item);
      }
    }
  }

  if (removedIds.length) {
    this._trigger('remove', { items: removedIds, oldData: removedItems }, senderId);
  }

  return removedIds;
};

/**
 * Remove an item by its id
 * @param {number | string | Object} id   id or item
 * @returns {number | string | null} id
 * @private
 */
DataSet.prototype._remove = function (id) {
  var item, ident;

  // confirm the id to use based on the args type
  if (util.isNumber(id) || util.isString(id)) {
    ident = id;
  } else if (id && (typeof id === 'undefined' ? 'undefined' : (0, _typeof3['default'])(id)) === 'object') {
    ident = id[this._fieldId]; // look for the identifier field using _fieldId
  }

  // do the remove if the item is found
  if (ident !== undefined && this._data[ident]) {
    item = this._data[ident];
    delete this._data[ident];
    this.length--;
    return item;
  }
  return null;
};

/**
 * Clear the data
 * @param {string} [senderId] Optional sender id
 * @return {Array.<string|number>} removedIds    The ids of all removed items
 */
DataSet.prototype.clear = function (senderId) {
  var i, len;
  var ids = (0, _keys2['default'])(this._data);
  var items = [];

  for (i = 0, len = ids.length; i < len; i++) {
    items.push(this._data[ids[i]]);
  }

  this._data = {};
  this.length = 0;

  this._trigger('remove', { items: ids, oldData: items }, senderId);

  return ids;
};

/**
 * Find the item with maximum value of a specified field
 * @param {string} field
 * @return {Object | null} item  Item containing max value, or null if no items
 */
DataSet.prototype.max = function (field) {
  var data = this._data,
      itemIds = (0, _keys2['default'])(data),
      max = null,
      maxField = null,
      i,
      len;

  for (i = 0, len = itemIds.length; i < len; i++) {
    var id = itemIds[i];
    var item = data[id];
    var itemField = item[field];
    if (itemField != null && (!max || itemField > maxField)) {
      max = item;
      maxField = itemField;
    }
  }

  return max;
};

/**
 * Find the item with minimum value of a specified field
 * @param {string} field
 * @return {Object | null} item  Item containing max value, or null if no items
 */
DataSet.prototype.min = function (field) {
  var data = this._data,
      itemIds = (0, _keys2['default'])(data),
      min = null,
      minField = null,
      i,
      len;

  for (i = 0, len = itemIds.length; i < len; i++) {
    var id = itemIds[i];
    var item = data[id];
    var itemField = item[field];
    if (itemField != null && (!min || itemField < minField)) {
      min = item;
      minField = itemField;
    }
  }

  return min;
};

/**
 * Find all distinct values of a specified field
 * @param {string} field
 * @return {Array} values  Array containing all distinct values. If data items
 *                         do not contain the specified field are ignored.
 *                         The returned array is unordered.
 */
DataSet.prototype.distinct = function (field) {
  var data = this._data;
  var itemIds = (0, _keys2['default'])(data);
  var values = [];
  var fieldType = this._options.type && this._options.type[field] || null;
  var count = 0;
  var i, j, len;

  for (i = 0, len = itemIds.length; i < len; i++) {
    var id = itemIds[i];
    var item = data[id];
    var value = item[field];
    var exists = false;
    for (j = 0; j < count; j++) {
      if (values[j] == value) {
        exists = true;
        break;
      }
    }
    if (!exists && value !== undefined) {
      values[count] = value;
      count++;
    }
  }

  if (fieldType) {
    for (i = 0, len = values.length; i < len; i++) {
      values[i] = util.convert(values[i], fieldType);
    }
  }

  return values;
};

/**
 * Add a single item. Will fail when an item with the same id already exists.
 * @param {Object} item
 * @return {string} id
 * @private
 */
DataSet.prototype._addItem = function (item) {
  var id = item[this._fieldId];

  if (id != undefined) {
    // check whether this id is already taken
    if (this._data[id]) {
      // item already exists
      throw new Error('Cannot add item: item with id ' + id + ' already exists');
    }
  } else {
    // generate an id
    id = util.randomUUID();
    item[this._fieldId] = id;
  }

  var d = {},
      fields = (0, _keys2['default'])(item),
      i,
      len;
  for (i = 0, len = fields.length; i < len; i++) {
    var field = fields[i];
    var fieldType = this._type[field]; // type may be undefined
    d[field] = util.convert(item[field], fieldType);
  }
  this._data[id] = d;
  this.length++;

  return id;
};

/**
 * Get an item. Fields can be converted to a specific type
 * @param {string} id
 * @param {Object.<string, string>} [types]  field types to convert
 * @return {Object | null} item
 * @private
 */
DataSet.prototype._getItem = function (id, types) {
  var field, value, i, len;

  // get the item from the dataset
  var raw = this._data[id];
  if (!raw) {
    return null;
  }

  // convert the items field types
  var converted = {},
      fields = (0, _keys2['default'])(raw);

  if (types) {
    for (i = 0, len = fields.length; i < len; i++) {
      field = fields[i];
      value = raw[field];
      converted[field] = util.convert(value, types[field]);
    }
  } else {
    // no field types specified, no converting needed
    for (i = 0, len = fields.length; i < len; i++) {
      field = fields[i];
      value = raw[field];
      converted[field] = value;
    }
  }

  if (!converted[this._fieldId]) {
    converted[this._fieldId] = raw.id;
  }

  return converted;
};

/**
 * Update a single item: merge with existing item.
 * Will fail when the item has no id, or when there does not exist an item
 * with the same id.
 * @param {Object} item
 * @return {string} id
 * @private
 */
DataSet.prototype._updateItem = function (item) {
  var id = item[this._fieldId];
  if (id == undefined) {
    throw new Error('Cannot update item: item has no id (item: ' + (0, _stringify2['default'])(item) + ')');
  }
  var d = this._data[id];
  if (!d) {
    // item doesn't exist
    throw new Error('Cannot update item: no item with id ' + id + ' found');
  }

  // merge with current item
  var fields = (0, _keys2['default'])(item);
  for (var i = 0, len = fields.length; i < len; i++) {
    var field = fields[i];
    var fieldType = this._type[field]; // type may be undefined
    d[field] = util.convert(item[field], fieldType);
  }

  return id;
};

module.exports = DataSet;

/***/ }),
/* 12 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _keys = __webpack_require__(8);

var _keys2 = _interopRequireDefault(_keys);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var DataSet = __webpack_require__(11);

/**
 * DataView
 *
 * a dataview offers a filtered view on a dataset or an other dataview.
 *
 * @param {DataSet | DataView} data
 * @param {Object} [options]   Available options: see method get
 *
 * @constructor DataView
 */
function DataView(data, options) {
  this._data = null;
  this._ids = {}; // ids of the items currently in memory (just contains a boolean true)
  this.length = 0; // number of items in the DataView
  this._options = options || {};
  this._fieldId = 'id'; // name of the field containing id
  this._subscribers = {}; // event subscribers

  var me = this;
  this.listener = function () {
    me._onEvent.apply(me, arguments);
  };

  this.setData(data);
}

// TODO: implement a function .config() to dynamically update things like configured filter
// and trigger changes accordingly

/**
 * Set a data source for the view
 * @param {DataSet | DataView} data
 */
DataView.prototype.setData = function (data) {
  var ids, id, i, len, items;

  if (this._data) {
    // unsubscribe from current dataset
    if (this._data.off) {
      this._data.off('*', this.listener);
    }

    // trigger a remove of all items in memory
    ids = this._data.getIds({ filter: this._options && this._options.filter });
    items = [];

    for (i = 0, len = ids.length; i < len; i++) {
      items.push(this._data._data[ids[i]]);
    }

    this._ids = {};
    this.length = 0;
    this._trigger('remove', { items: ids, oldData: items });
  }

  this._data = data;

  if (this._data) {
    // update fieldId
    this._fieldId = this._options.fieldId || this._data && this._data.options && this._data.options.fieldId || 'id';

    // trigger an add of all added items
    ids = this._data.getIds({ filter: this._options && this._options.filter });
    for (i = 0, len = ids.length; i < len; i++) {
      id = ids[i];
      this._ids[id] = true;
    }
    this.length = ids.length;
    this._trigger('add', { items: ids });

    // subscribe to new dataset
    if (this._data.on) {
      this._data.on('*', this.listener);
    }
  }
};

/**
 * Refresh the DataView. Useful when the DataView has a filter function
 * containing a variable parameter.
 */
DataView.prototype.refresh = function () {
  var id, i, len;
  var ids = this._data.getIds({ filter: this._options && this._options.filter }),
      oldIds = (0, _keys2['default'])(this._ids),
      newIds = {},
      addedIds = [],
      removedIds = [],
      removedItems = [];

  // check for additions
  for (i = 0, len = ids.length; i < len; i++) {
    id = ids[i];
    newIds[id] = true;
    if (!this._ids[id]) {
      addedIds.push(id);
      this._ids[id] = true;
    }
  }

  // check for removals
  for (i = 0, len = oldIds.length; i < len; i++) {
    id = oldIds[i];
    if (!newIds[id]) {
      removedIds.push(id);
      removedItems.push(this._data._data[id]);
      delete this._ids[id];
    }
  }

  this.length += addedIds.length - removedIds.length;

  // trigger events
  if (addedIds.length) {
    this._trigger('add', { items: addedIds });
  }
  if (removedIds.length) {
    this._trigger('remove', { items: removedIds, oldData: removedItems });
  }
};

/**
 * Get data from the data view
 *
 * Usage:
 *
 *     get()
 *     get(options: Object)
 *     get(options: Object, data: Array | DataTable)
 *
 *     get(id: Number)
 *     get(id: Number, options: Object)
 *     get(id: Number, options: Object, data: Array | DataTable)
 *
 *     get(ids: Number[])
 *     get(ids: Number[], options: Object)
 *     get(ids: Number[], options: Object, data: Array | DataTable)
 *
 * Where:
 *
 * {number | string} id         The id of an item
 * {number[] | string{}} ids    An array with ids of items
 * {Object} options             An Object with options. Available options:
 *                              {string} [type] Type of data to be returned. Can
 *                                              be 'DataTable' or 'Array' (default)
 *                              {Object.<string, string>} [convert]
 *                              {string[]} [fields] field names to be returned
 *                              {function} [filter] filter items
 *                              {string | function} [order] Order the items by
 *                                  a field name or custom sort function.
 * {Array | DataTable} [data]   If provided, items will be appended to this
 *                              array or table. Required in case of Google
 *                              DataTable.
 * @param {Array} args
 * @return {DataSet|DataView}
 */
DataView.prototype.get = function (args) {
  // eslint-disable-line no-unused-vars
  var me = this;

  // parse the arguments
  var ids, options, data;
  var firstType = util.getType(arguments[0]);
  if (firstType == 'String' || firstType == 'Number' || firstType == 'Array') {
    // get(id(s) [, options] [, data])
    ids = arguments[0]; // can be a single id or an array with ids
    options = arguments[1];
    data = arguments[2];
  } else {
    // get([, options] [, data])
    options = arguments[0];
    data = arguments[1];
  }

  // extend the options with the default options and provided options
  var viewOptions = util.extend({}, this._options, options);

  // create a combined filter method when needed
  if (this._options.filter && options && options.filter) {
    viewOptions.filter = function (item) {
      return me._options.filter(item) && options.filter(item);
    };
  }

  // build up the call to the linked data set
  var getArguments = [];
  if (ids != undefined) {
    getArguments.push(ids);
  }
  getArguments.push(viewOptions);
  getArguments.push(data);

  return this._data && this._data.get.apply(this._data, getArguments);
};

/**
 * Get ids of all items or from a filtered set of items.
 * @param {Object} [options]    An Object with options. Available options:
 *                              {function} [filter] filter items
 *                              {string | function} [order] Order the items by
 *                                  a field name or custom sort function.
 * @return {Array.<string|number>} ids
 */
DataView.prototype.getIds = function (options) {
  var ids;

  if (this._data) {
    var defaultFilter = this._options.filter;
    var filter;

    if (options && options.filter) {
      if (defaultFilter) {
        filter = function filter(item) {
          return defaultFilter(item) && options.filter(item);
        };
      } else {
        filter = options.filter;
      }
    } else {
      filter = defaultFilter;
    }

    ids = this._data.getIds({
      filter: filter,
      order: options && options.order
    });
  } else {
    ids = [];
  }

  return ids;
};

/**
 * Map every item in the dataset.
 * @param {function} callback
 * @param {Object} [options]    Available options:
 *                              {Object.<string, string>} [type]
 *                              {string[]} [fields] filter fields
 *                              {function} [filter] filter items
 *                              {string | function} [order] Order the items by
 *                                  a field name or custom sort function.
 * @return {Object[]} mappedItems
 */
DataView.prototype.map = function (callback, options) {
  var mappedItems = [];
  if (this._data) {
    var defaultFilter = this._options.filter;
    var filter;

    if (options && options.filter) {
      if (defaultFilter) {
        filter = function filter(item) {
          return defaultFilter(item) && options.filter(item);
        };
      } else {
        filter = options.filter;
      }
    } else {
      filter = defaultFilter;
    }

    mappedItems = this._data.map(callback, {
      filter: filter,
      order: options && options.order
    });
  } else {
    mappedItems = [];
  }

  return mappedItems;
};

/**
 * Get the DataSet to which this DataView is connected. In case there is a chain
 * of multiple DataViews, the root DataSet of this chain is returned.
 * @return {DataSet} dataSet
 */
DataView.prototype.getDataSet = function () {
  var dataSet = this;
  while (dataSet instanceof DataView) {
    dataSet = dataSet._data;
  }
  return dataSet || null;
};

/**
 * Event listener. Will propagate all events from the connected data set to
 * the subscribers of the DataView, but will filter the items and only trigger
 * when there are changes in the filtered data set.
 * @param {string} event
 * @param {Object | null} params
 * @param {string} senderId
 * @private
 */
DataView.prototype._onEvent = function (event, params, senderId) {
  var i, len, id, item;
  var ids = params && params.items;
  var addedIds = [],
      updatedIds = [],
      removedIds = [],
      oldItems = [],
      updatedItems = [],
      removedItems = [];

  if (ids && this._data) {
    switch (event) {
      case 'add':
        // filter the ids of the added items
        for (i = 0, len = ids.length; i < len; i++) {
          id = ids[i];
          item = this.get(id);
          if (item) {
            this._ids[id] = true;
            addedIds.push(id);
          }
        }

        break;

      case 'update':
        // determine the event from the views viewpoint: an updated
        // item can be added, updated, or removed from this view.
        for (i = 0, len = ids.length; i < len; i++) {
          id = ids[i];
          item = this.get(id);

          if (item) {
            if (this._ids[id]) {
              updatedIds.push(id);
              updatedItems.push(params.data[i]);
              oldItems.push(params.oldData[i]);
            } else {
              this._ids[id] = true;
              addedIds.push(id);
            }
          } else {
            if (this._ids[id]) {
              delete this._ids[id];
              removedIds.push(id);
              removedItems.push(params.oldData[i]);
            } else {
              // nothing interesting for me :-(
            }
          }
        }

        break;

      case 'remove':
        // filter the ids of the removed items
        for (i = 0, len = ids.length; i < len; i++) {
          id = ids[i];
          if (this._ids[id]) {
            delete this._ids[id];
            removedIds.push(id);
            removedItems.push(params.oldData[i]);
          }
        }

        break;
    }

    this.length += addedIds.length - removedIds.length;

    if (addedIds.length) {
      this._trigger('add', { items: addedIds }, senderId);
    }
    if (updatedIds.length) {
      this._trigger('update', { items: updatedIds, oldData: oldItems, data: updatedItems }, senderId);
    }
    if (removedIds.length) {
      this._trigger('remove', { items: removedIds, oldData: removedItems }, senderId);
    }
  }
};

// copy subscription functionality from DataSet
DataView.prototype.on = DataSet.prototype.on;
DataView.prototype.off = DataSet.prototype.off;
DataView.prototype._trigger = DataSet.prototype._trigger;

// TODO: make these functions deprecated (replaced with `on` and `off` since version 0.5)
DataView.prototype.subscribe = DataView.prototype.on;
DataView.prototype.unsubscribe = DataView.prototype.off;

module.exports = DataView;

/***/ }),
/* 13 */
/***/ (function(module, exports, __webpack_require__) {

var store = __webpack_require__(57)('wks');
var uid = __webpack_require__(40);
var Symbol = __webpack_require__(18).Symbol;
var USE_SYMBOL = typeof Symbol == 'function';

var $exports = module.exports = function (name) {
  return store[name] || (store[name] =
    USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : uid)('Symbol.' + name));
};

$exports.store = store;


/***/ }),
/* 14 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


// DOM utility methods

/**
 * this prepares the JSON container for allocating SVG elements
 * @param {Object} JSONcontainer
 * @private
 */
exports.prepareElements = function (JSONcontainer) {
  // cleanup the redundant svgElements;
  for (var elementType in JSONcontainer) {
    if (JSONcontainer.hasOwnProperty(elementType)) {
      JSONcontainer[elementType].redundant = JSONcontainer[elementType].used;
      JSONcontainer[elementType].used = [];
    }
  }
};

/**
 * this cleans up all the unused SVG elements. By asking for the parentNode, we only need to supply the JSON container from
 * which to remove the redundant elements.
 *
 * @param {Object} JSONcontainer
 * @private
 */
exports.cleanupElements = function (JSONcontainer) {
  // cleanup the redundant svgElements;
  for (var elementType in JSONcontainer) {
    if (JSONcontainer.hasOwnProperty(elementType)) {
      if (JSONcontainer[elementType].redundant) {
        for (var i = 0; i < JSONcontainer[elementType].redundant.length; i++) {
          JSONcontainer[elementType].redundant[i].parentNode.removeChild(JSONcontainer[elementType].redundant[i]);
        }
        JSONcontainer[elementType].redundant = [];
      }
    }
  }
};

/**
 * Ensures that all elements are removed first up so they can be recreated cleanly
 * @param {Object} JSONcontainer
 */
exports.resetElements = function (JSONcontainer) {
  exports.prepareElements(JSONcontainer);
  exports.cleanupElements(JSONcontainer);
  exports.prepareElements(JSONcontainer);
};

/**
 * Allocate or generate an SVG element if needed. Store a reference to it in the JSON container and draw it in the svgContainer
 * the JSON container and the SVG container have to be supplied so other svg containers (like the legend) can use this.
 *
 * @param {string} elementType
 * @param {Object} JSONcontainer
 * @param {Object} svgContainer
 * @returns {Element}
 * @private
 */
exports.getSVGElement = function (elementType, JSONcontainer, svgContainer) {
  var element;
  // allocate SVG element, if it doesnt yet exist, create one.
  if (JSONcontainer.hasOwnProperty(elementType)) {
    // this element has been created before
    // check if there is an redundant element
    if (JSONcontainer[elementType].redundant.length > 0) {
      element = JSONcontainer[elementType].redundant[0];
      JSONcontainer[elementType].redundant.shift();
    } else {
      // create a new element and add it to the SVG
      element = document.createElementNS('http://www.w3.org/2000/svg', elementType);
      svgContainer.appendChild(element);
    }
  } else {
    // create a new element and add it to the SVG, also create a new object in the svgElements to keep track of it.
    element = document.createElementNS('http://www.w3.org/2000/svg', elementType);
    JSONcontainer[elementType] = { used: [], redundant: [] };
    svgContainer.appendChild(element);
  }
  JSONcontainer[elementType].used.push(element);
  return element;
};

/**
 * Allocate or generate an SVG element if needed. Store a reference to it in the JSON container and draw it in the svgContainer
 * the JSON container and the SVG container have to be supplied so other svg containers (like the legend) can use this.
 *
 * @param {string} elementType
 * @param {Object} JSONcontainer
 * @param {Element} DOMContainer
 * @param {Element} insertBefore
 * @returns {*}
 */
exports.getDOMElement = function (elementType, JSONcontainer, DOMContainer, insertBefore) {
  var element;
  // allocate DOM element, if it doesnt yet exist, create one.
  if (JSONcontainer.hasOwnProperty(elementType)) {
    // this element has been created before
    // check if there is an redundant element
    if (JSONcontainer[elementType].redundant.length > 0) {
      element = JSONcontainer[elementType].redundant[0];
      JSONcontainer[elementType].redundant.shift();
    } else {
      // create a new element and add it to the SVG
      element = document.createElement(elementType);
      if (insertBefore !== undefined) {
        DOMContainer.insertBefore(element, insertBefore);
      } else {
        DOMContainer.appendChild(element);
      }
    }
  } else {
    // create a new element and add it to the SVG, also create a new object in the svgElements to keep track of it.
    element = document.createElement(elementType);
    JSONcontainer[elementType] = { used: [], redundant: [] };
    if (insertBefore !== undefined) {
      DOMContainer.insertBefore(element, insertBefore);
    } else {
      DOMContainer.appendChild(element);
    }
  }
  JSONcontainer[elementType].used.push(element);
  return element;
};

/**
 * Draw a point object. This is a separate function because it can also be called by the legend.
 * The reason the JSONcontainer and the target SVG svgContainer have to be supplied is so the legend can use these functions
 * as well.
 *
 * @param {number} x
 * @param {number} y
 * @param {Object} groupTemplate: A template containing the necessary information to draw the datapoint e.g., {style: 'circle', size: 5, className: 'className' }
 * @param {Object} JSONcontainer
 * @param {Object} svgContainer
 * @param {Object} labelObj
 * @returns {vis.PointItem}
 */
exports.drawPoint = function (x, y, groupTemplate, JSONcontainer, svgContainer, labelObj) {
  var point;
  if (groupTemplate.style == 'circle') {
    point = exports.getSVGElement('circle', JSONcontainer, svgContainer);
    point.setAttributeNS(null, "cx", x);
    point.setAttributeNS(null, "cy", y);
    point.setAttributeNS(null, "r", 0.5 * groupTemplate.size);
  } else {
    point = exports.getSVGElement('rect', JSONcontainer, svgContainer);
    point.setAttributeNS(null, "x", x - 0.5 * groupTemplate.size);
    point.setAttributeNS(null, "y", y - 0.5 * groupTemplate.size);
    point.setAttributeNS(null, "width", groupTemplate.size);
    point.setAttributeNS(null, "height", groupTemplate.size);
  }

  if (groupTemplate.styles !== undefined) {
    point.setAttributeNS(null, "style", groupTemplate.styles);
  }
  point.setAttributeNS(null, "class", groupTemplate.className + " vis-point");
  //handle label


  if (labelObj) {
    var label = exports.getSVGElement('text', JSONcontainer, svgContainer);
    if (labelObj.xOffset) {
      x = x + labelObj.xOffset;
    }

    if (labelObj.yOffset) {
      y = y + labelObj.yOffset;
    }
    if (labelObj.content) {
      label.textContent = labelObj.content;
    }

    if (labelObj.className) {
      label.setAttributeNS(null, "class", labelObj.className + " vis-label");
    }
    label.setAttributeNS(null, "x", x);
    label.setAttributeNS(null, "y", y);
  }

  return point;
};

/**
 * draw a bar SVG element centered on the X coordinate
 *
 * @param {number} x
 * @param {number} y
 * @param {number} width
 * @param {number} height
 * @param {string} className
 * @param {Object} JSONcontainer
 * @param {Object} svgContainer
 * @param {string} style
 */
exports.drawBar = function (x, y, width, height, className, JSONcontainer, svgContainer, style) {
  if (height != 0) {
    if (height < 0) {
      height *= -1;
      y -= height;
    }
    var rect = exports.getSVGElement('rect', JSONcontainer, svgContainer);
    rect.setAttributeNS(null, "x", x - 0.5 * width);
    rect.setAttributeNS(null, "y", y);
    rect.setAttributeNS(null, "width", width);
    rect.setAttributeNS(null, "height", height);
    rect.setAttributeNS(null, "class", className);
    if (style) {
      rect.setAttributeNS(null, "style", style);
    }
  }
};

/***/ }),
/* 15 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.printStyle = undefined;

var _stringify = __webpack_require__(19);

var _stringify2 = _interopRequireDefault(_stringify);

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

var _keys = __webpack_require__(8);

var _keys2 = _interopRequireDefault(_keys);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);

var errorFound = false;
var allOptions = void 0;
var printStyle = 'background: #FFeeee; color: #dd0000';
/**
 *  Used to validate options.
 */

var Validator = function () {
  /**
   * @ignore
   */
  function Validator() {
    (0, _classCallCheck3['default'])(this, Validator);
  }

  /**
   * Main function to be called
   * @param {Object} options
   * @param {Object} referenceOptions
   * @param {Object} subObject
   * @returns {boolean}
   * @static
   */


  (0, _createClass3['default'])(Validator, null, [{
    key: 'validate',
    value: function validate(options, referenceOptions, subObject) {
      errorFound = false;
      allOptions = referenceOptions;
      var usedOptions = referenceOptions;
      if (subObject !== undefined) {
        usedOptions = referenceOptions[subObject];
      }
      Validator.parse(options, usedOptions, []);
      return errorFound;
    }

    /**
     * Will traverse an object recursively and check every value
     * @param {Object} options
     * @param {Object} referenceOptions
     * @param {array} path    | where to look for the actual option
     * @static
     */

  }, {
    key: 'parse',
    value: function parse(options, referenceOptions, path) {
      for (var option in options) {
        if (options.hasOwnProperty(option)) {
          Validator.check(option, options, referenceOptions, path);
        }
      }
    }

    /**
     * Check every value. If the value is an object, call the parse function on that object.
     * @param {string} option
     * @param {Object} options
     * @param {Object} referenceOptions
     * @param {array} path    | where to look for the actual option
     * @static
     */

  }, {
    key: 'check',
    value: function check(option, options, referenceOptions, path) {
      if (referenceOptions[option] === undefined && referenceOptions.__any__ === undefined) {
        Validator.getSuggestion(option, referenceOptions, path);
        return;
      }

      var referenceOption = option;
      var is_object = true;

      if (referenceOptions[option] === undefined && referenceOptions.__any__ !== undefined) {
        // NOTE: This only triggers if the __any__ is in the top level of the options object.
        //       THAT'S A REALLY BAD PLACE TO ALLOW IT!!!!
        // TODO: Examine if needed, remove if possible

        // __any__ is a wildcard. Any value is accepted and will be further analysed by reference.
        referenceOption = '__any__';

        // if the any-subgroup is not a predefined object in the configurator,
        // we do not look deeper into the object.
        is_object = Validator.getType(options[option]) === 'object';
      } else {
        // Since all options in the reference are objects, we can check whether 
        // they are supposed to be the object to look for the __type__ field.
        // if this is an object, we check if the correct type has been supplied to account for shorthand options.
      }

      var refOptionObj = referenceOptions[referenceOption];
      if (is_object && refOptionObj.__type__ !== undefined) {
        refOptionObj = refOptionObj.__type__;
      }

      Validator.checkFields(option, options, referenceOptions, referenceOption, refOptionObj, path);
    }

    /**
     *
     * @param {string}  option           | the option property
     * @param {Object}  options          | The supplied options object
     * @param {Object}  referenceOptions | The reference options containing all options and their allowed formats
     * @param {string}  referenceOption  | Usually this is the same as option, except when handling an __any__ tag.
     * @param {string}  refOptionObj     | This is the type object from the reference options
     * @param {Array}   path             | where in the object is the option
     * @static
     */

  }, {
    key: 'checkFields',
    value: function checkFields(option, options, referenceOptions, referenceOption, refOptionObj, path) {
      var log = function log(message) {
        console.log('%c' + message + Validator.printLocation(path, option), printStyle);
      };

      var optionType = Validator.getType(options[option]);
      var refOptionType = refOptionObj[optionType];

      if (refOptionType !== undefined) {
        // if the type is correct, we check if it is supposed to be one of a few select values
        if (Validator.getType(refOptionType) === 'array' && refOptionType.indexOf(options[option]) === -1) {
          log('Invalid option detected in "' + option + '".' + ' Allowed values are:' + Validator.print(refOptionType) + ' not "' + options[option] + '". ');
          errorFound = true;
        } else if (optionType === 'object' && referenceOption !== "__any__") {
          path = util.copyAndExtendArray(path, option);
          Validator.parse(options[option], referenceOptions[referenceOption], path);
        }
      } else if (refOptionObj['any'] === undefined) {
        // type of the field is incorrect and the field cannot be any
        log('Invalid type received for "' + option + '". Expected: ' + Validator.print((0, _keys2['default'])(refOptionObj)) + '. Received [' + optionType + '] "' + options[option] + '"');
        errorFound = true;
      }
    }

    /**
     *
     * @param {Object|boolean|number|string|Array.<number>|Date|Node|Moment|undefined|null} object
     * @returns {string}
     * @static
     */

  }, {
    key: 'getType',
    value: function getType(object) {
      var type = typeof object === 'undefined' ? 'undefined' : (0, _typeof3['default'])(object);

      if (type === 'object') {
        if (object === null) {
          return 'null';
        }
        if (object instanceof Boolean) {
          return 'boolean';
        }
        if (object instanceof Number) {
          return 'number';
        }
        if (object instanceof String) {
          return 'string';
        }
        if (Array.isArray(object)) {
          return 'array';
        }
        if (object instanceof Date) {
          return 'date';
        }
        if (object.nodeType !== undefined) {
          return 'dom';
        }
        if (object._isAMomentObject === true) {
          return 'moment';
        }
        return 'object';
      } else if (type === 'number') {
        return 'number';
      } else if (type === 'boolean') {
        return 'boolean';
      } else if (type === 'string') {
        return 'string';
      } else if (type === undefined) {
        return 'undefined';
      }
      return type;
    }

    /**
     * @param {string} option
     * @param {Object} options
     * @param {Array.<string>} path
     * @static
     */

  }, {
    key: 'getSuggestion',
    value: function getSuggestion(option, options, path) {
      var localSearch = Validator.findInOptions(option, options, path, false);
      var globalSearch = Validator.findInOptions(option, allOptions, [], true);

      var localSearchThreshold = 8;
      var globalSearchThreshold = 4;

      var msg = void 0;
      if (localSearch.indexMatch !== undefined) {
        msg = ' in ' + Validator.printLocation(localSearch.path, option, '') + 'Perhaps it was incomplete? Did you mean: "' + localSearch.indexMatch + '"?\n\n';
      } else if (globalSearch.distance <= globalSearchThreshold && localSearch.distance > globalSearch.distance) {
        msg = ' in ' + Validator.printLocation(localSearch.path, option, '') + 'Perhaps it was misplaced? Matching option found at: ' + Validator.printLocation(globalSearch.path, globalSearch.closestMatch, '');
      } else if (localSearch.distance <= localSearchThreshold) {
        msg = '. Did you mean "' + localSearch.closestMatch + '"?' + Validator.printLocation(localSearch.path, option);
      } else {
        msg = '. Did you mean one of these: ' + Validator.print((0, _keys2['default'])(options)) + Validator.printLocation(path, option);
      }

      console.log('%cUnknown option detected: "' + option + '"' + msg, printStyle);
      errorFound = true;
    }

    /**
     * traverse the options in search for a match.
     * @param {string} option
     * @param {Object} options
     * @param {Array} path    | where to look for the actual option
     * @param {boolean} [recursive=false]
     * @returns {{closestMatch: string, path: Array, distance: number}}
     * @static
     */

  }, {
    key: 'findInOptions',
    value: function findInOptions(option, options, path) {
      var recursive = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;

      var min = 1e9;
      var closestMatch = '';
      var closestMatchPath = [];
      var lowerCaseOption = option.toLowerCase();
      var indexMatch = undefined;
      for (var op in options) {
        // eslint-disable-line guard-for-in
        var distance = void 0;
        if (options[op].__type__ !== undefined && recursive === true) {
          var result = Validator.findInOptions(option, options[op], util.copyAndExtendArray(path, op));
          if (min > result.distance) {
            closestMatch = result.closestMatch;
            closestMatchPath = result.path;
            min = result.distance;
            indexMatch = result.indexMatch;
          }
        } else {
          if (op.toLowerCase().indexOf(lowerCaseOption) !== -1) {
            indexMatch = op;
          }
          distance = Validator.levenshteinDistance(option, op);
          if (min > distance) {
            closestMatch = op;
            closestMatchPath = util.copyArray(path);
            min = distance;
          }
        }
      }
      return { closestMatch: closestMatch, path: closestMatchPath, distance: min, indexMatch: indexMatch };
    }

    /**
     * @param {Array.<string>} path
     * @param {Object} option
     * @param {string} prefix
     * @returns {String}
     * @static
     */

  }, {
    key: 'printLocation',
    value: function printLocation(path, option) {
      var prefix = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'Problem value found at: \n';

      var str = '\n\n' + prefix + 'options = {\n';
      for (var i = 0; i < path.length; i++) {
        for (var j = 0; j < i + 1; j++) {
          str += '  ';
        }
        str += path[i] + ': {\n';
      }
      for (var _j = 0; _j < path.length + 1; _j++) {
        str += '  ';
      }
      str += option + '\n';
      for (var _i = 0; _i < path.length + 1; _i++) {
        for (var _j2 = 0; _j2 < path.length - _i; _j2++) {
          str += '  ';
        }
        str += '}\n';
      }
      return str + '\n\n';
    }

    /**
     * @param {Object} options
     * @returns {String}
     * @static
     */

  }, {
    key: 'print',
    value: function print(options) {
      return (0, _stringify2['default'])(options).replace(/(\")|(\[)|(\])|(,"__type__")/g, "").replace(/(\,)/g, ', ');
    }

    /**
     *  Compute the edit distance between the two given strings
     * http://en.wikibooks.org/wiki/Algorithm_Implementation/Strings/Levenshtein_distance#JavaScript
     *
     * Copyright (c) 2011 Andrei Mackenzie
     *
     * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
     *
     * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
     *
     * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     *
     * @param {string} a
     * @param {string} b
     * @returns {Array.<Array.<number>>}}
     * @static
     */

  }, {
    key: 'levenshteinDistance',
    value: function levenshteinDistance(a, b) {
      if (a.length === 0) return b.length;
      if (b.length === 0) return a.length;

      var matrix = [];

      // increment along the first column of each row
      var i;
      for (i = 0; i <= b.length; i++) {
        matrix[i] = [i];
      }

      // increment each column in the first row
      var j;
      for (j = 0; j <= a.length; j++) {
        matrix[0][j] = j;
      }

      // Fill in the rest of the matrix
      for (i = 1; i <= b.length; i++) {
        for (j = 1; j <= a.length; j++) {
          if (b.charAt(i - 1) == a.charAt(j - 1)) {
            matrix[i][j] = matrix[i - 1][j - 1];
          } else {
            matrix[i][j] = Math.min(matrix[i - 1][j - 1] + 1, // substitution
            Math.min(matrix[i][j - 1] + 1, // insertion
            matrix[i - 1][j] + 1)); // deletion
          }
        }
      }

      return matrix[b.length][a.length];
    }
  }]);
  return Validator;
}();

exports['default'] = Validator;
exports.printStyle = printStyle;

/***/ }),
/* 16 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var util = __webpack_require__(2);

/**
 * Prototype for visual components
 * @param {{dom: Object, domProps: Object, emitter: Emitter, range: Range}} [body]
 * @param {Object} [options]
 */
function Component(body, options) {
  // eslint-disable-line no-unused-vars
  this.options = null;
  this.props = null;
}

/**
 * Set options for the component. The new options will be merged into the
 * current options.
 * @param {Object} options
 */
Component.prototype.setOptions = function (options) {
  if (options) {
    util.extend(this.options, options);
  }
};

/**
 * Repaint the component
 * @return {boolean} Returns true if the component is resized
 */
Component.prototype.redraw = function () {
  // should be implemented by the component
  return false;
};

/**
 * Destroy the component. Cleanup DOM and event listeners
 */
Component.prototype.destroy = function () {
  // should be implemented by the component
};

/**
 * Test whether the component is resized since the last time _isResized() was
 * called.
 * @return {Boolean} Returns true if the component is resized
 * @protected
 */
Component.prototype._isResized = function () {
  var resized = this.props._previousWidth !== this.props.width || this.props._previousHeight !== this.props.height;

  this.props._previousWidth = this.props.width;
  this.props._previousHeight = this.props.height;

  return resized;
};

module.exports = Component;

/***/ }),
/* 17 */
/***/ (function(module, exports, __webpack_require__) {

var global = __webpack_require__(18);
var core = __webpack_require__(7);
var ctx = __webpack_require__(80);
var hide = __webpack_require__(26);
var PROTOTYPE = 'prototype';

var $export = function (type, name, source) {
  var IS_FORCED = type & $export.F;
  var IS_GLOBAL = type & $export.G;
  var IS_STATIC = type & $export.S;
  var IS_PROTO = type & $export.P;
  var IS_BIND = type & $export.B;
  var IS_WRAP = type & $export.W;
  var exports = IS_GLOBAL ? core : core[name] || (core[name] = {});
  var expProto = exports[PROTOTYPE];
  var target = IS_GLOBAL ? global : IS_STATIC ? global[name] : (global[name] || {})[PROTOTYPE];
  var key, own, out;
  if (IS_GLOBAL) source = name;
  for (key in source) {
    // contains in native
    own = !IS_FORCED && target && target[key] !== undefined;
    if (own && key in exports) continue;
    // export native or passed
    out = own ? target[key] : source[key];
    // prevent global pollution for namespaces
    exports[key] = IS_GLOBAL && typeof target[key] != 'function' ? source[key]
    // bind timers to global for call from export context
    : IS_BIND && own ? ctx(out, global)
    // wrap global constructors for prevent change them in library
    : IS_WRAP && target[key] == out ? (function (C) {
      var F = function (a, b, c) {
        if (this instanceof C) {
          switch (arguments.length) {
            case 0: return new C();
            case 1: return new C(a);
            case 2: return new C(a, b);
          } return new C(a, b, c);
        } return C.apply(this, arguments);
      };
      F[PROTOTYPE] = C[PROTOTYPE];
      return F;
    // make static versions for prototype methods
    })(out) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;
    // export proto methods to core.%CONSTRUCTOR%.methods.%NAME%
    if (IS_PROTO) {
      (exports.virtual || (exports.virtual = {}))[key] = out;
      // export proto methods to core.%CONSTRUCTOR%.prototype.%NAME%
      if (type & $export.R && expProto && !expProto[key]) hide(expProto, key, out);
    }
  }
};
// type bitmap
$export.F = 1;   // forced
$export.G = 2;   // global
$export.S = 4;   // static
$export.P = 8;   // proto
$export.B = 16;  // bind
$export.W = 32;  // wrap
$export.U = 64;  // safe
$export.R = 128; // real proto method for `library`
module.exports = $export;


/***/ }),
/* 18 */
/***/ (function(module, exports) {

// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
var global = module.exports = typeof window != 'undefined' && window.Math == Math
  ? window : typeof self != 'undefined' && self.Math == Math ? self
  // eslint-disable-next-line no-new-func
  : Function('return this')();
if (typeof __g == 'number') __g = global; // eslint-disable-line no-undef


/***/ }),
/* 19 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = { "default": __webpack_require__(160), __esModule: true };

/***/ }),
/* 20 */
/***/ (function(module, exports, __webpack_require__) {

var anObject = __webpack_require__(27);
var IE8_DOM_DEFINE = __webpack_require__(81);
var toPrimitive = __webpack_require__(53);
var dP = Object.defineProperty;

exports.f = __webpack_require__(21) ? Object.defineProperty : function defineProperty(O, P, Attributes) {
  anObject(O);
  P = toPrimitive(P, true);
  anObject(Attributes);
  if (IE8_DOM_DEFINE) try {
    return dP(O, P, Attributes);
  } catch (e) { /* empty */ }
  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
  if ('value' in Attributes) O[P] = Attributes.value;
  return O;
};


/***/ }),
/* 21 */
/***/ (function(module, exports, __webpack_require__) {

// Thank's IE8 for his funny defineProperty
module.exports = !__webpack_require__(28)(function () {
  return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
});


/***/ }),
/* 22 */
/***/ (function(module, exports) {

var hasOwnProperty = {}.hasOwnProperty;
module.exports = function (it, key) {
  return hasOwnProperty.call(it, key);
};


/***/ }),
/* 23 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * The Base class for all Nodes.
 */
var NodeBase = function () {
  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function NodeBase(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, NodeBase);

    this.body = body;
    this.labelModule = labelModule;
    this.setOptions(options);
    this.top = undefined;
    this.left = undefined;
    this.height = undefined;
    this.width = undefined;
    this.radius = undefined;
    this.margin = undefined;
    this.refreshNeeded = true;
    this.boundingBox = { top: 0, left: 0, right: 0, bottom: 0 };
  }

  /**
   *
   * @param {Object} options
   */


  (0, _createClass3['default'])(NodeBase, [{
    key: 'setOptions',
    value: function setOptions(options) {
      this.options = options;
    }

    /**
     *
     * @param {Label} labelModule
     * @private
     */

  }, {
    key: '_setMargins',
    value: function _setMargins(labelModule) {
      this.margin = {};
      if (this.options.margin) {
        if ((0, _typeof3['default'])(this.options.margin) == 'object') {
          this.margin.top = this.options.margin.top;
          this.margin.right = this.options.margin.right;
          this.margin.bottom = this.options.margin.bottom;
          this.margin.left = this.options.margin.left;
        } else {
          this.margin.top = this.options.margin;
          this.margin.right = this.options.margin;
          this.margin.bottom = this.options.margin;
          this.margin.left = this.options.margin;
        }
      }
      labelModule.adjustSizes(this.margin);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     * @private
     */

  }, {
    key: '_distanceToBorder',
    value: function _distanceToBorder(ctx, angle) {
      var borderWidth = this.options.borderWidth;
      this.resize(ctx);
      return Math.min(Math.abs(this.width / 2 / Math.cos(angle)), Math.abs(this.height / 2 / Math.sin(angle))) + borderWidth;
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'enableShadow',
    value: function enableShadow(ctx, values) {
      if (values.shadow) {
        ctx.shadowColor = values.shadowColor;
        ctx.shadowBlur = values.shadowSize;
        ctx.shadowOffsetX = values.shadowX;
        ctx.shadowOffsetY = values.shadowY;
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'disableShadow',
    value: function disableShadow(ctx, values) {
      if (values.shadow) {
        ctx.shadowColor = 'rgba(0,0,0,0)';
        ctx.shadowBlur = 0;
        ctx.shadowOffsetX = 0;
        ctx.shadowOffsetY = 0;
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'enableBorderDashes',
    value: function enableBorderDashes(ctx, values) {
      if (values.borderDashes !== false) {
        if (ctx.setLineDash !== undefined) {
          var dashes = values.borderDashes;
          if (dashes === true) {
            dashes = [5, 15];
          }
          ctx.setLineDash(dashes);
        } else {
          console.warn("setLineDash is not supported in this browser. The dashed borders cannot be used.");
          this.options.shapeProperties.borderDashes = false;
          values.borderDashes = false;
        }
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'disableBorderDashes',
    value: function disableBorderDashes(ctx, values) {
      if (values.borderDashes !== false) {
        if (ctx.setLineDash !== undefined) {
          ctx.setLineDash([0]);
        } else {
          console.warn("setLineDash is not supported in this browser. The dashed borders cannot be used.");
          this.options.shapeProperties.borderDashes = false;
          values.borderDashes = false;
        }
      }
    }

    /**
     * Determine if the shape of a node needs to be recalculated.
     *
     * @param {boolean} selected
     * @param {boolean} hover
     * @returns {boolean}
     * @protected
     */

  }, {
    key: 'needsRefresh',
    value: function needsRefresh(selected, hover) {
      if (this.refreshNeeded === true) {
        // This is probably not the best location to reset this member.
        // However, in the current logic, it is the most convenient one.
        this.refreshNeeded = false;
        return true;
      }

      return this.width === undefined || this.labelModule.differentState(selected, hover);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'initContextForDraw',
    value: function initContextForDraw(ctx, values) {
      var borderWidth = values.borderWidth / this.body.view.scale;

      ctx.lineWidth = Math.min(this.width, borderWidth);
      ctx.strokeStyle = values.borderColor;
      ctx.fillStyle = values.color;
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'performStroke',
    value: function performStroke(ctx, values) {
      var borderWidth = values.borderWidth / this.body.view.scale;

      //draw dashed border if enabled, save and restore is required for firefox not to crash on unix.
      ctx.save();
      // if borders are zero width, they will be drawn with width 1 by default. This prevents that
      if (borderWidth > 0) {
        this.enableBorderDashes(ctx, values);
        //draw the border
        ctx.stroke();
        //disable dashed border for other elements
        this.disableBorderDashes(ctx, values);
      }
      ctx.restore();
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'performFill',
    value: function performFill(ctx, values) {
      // draw shadow if enabled
      this.enableShadow(ctx, values);
      // draw the background
      ctx.fill();
      // disable shadows for other elements.
      this.disableShadow(ctx, values);

      this.performStroke(ctx, values);
    }

    /**
     *
     * @param {number} margin
     * @private
     */

  }, {
    key: '_addBoundingBoxMargin',
    value: function _addBoundingBoxMargin(margin) {
      this.boundingBox.left -= margin;
      this.boundingBox.top -= margin;
      this.boundingBox.bottom += margin;
      this.boundingBox.right += margin;
    }

    /**
     * Actual implementation of this method call.
     *
     * Doing it like this makes it easier to override
     * in the child classes.
     *
     * @param {number} x width
     * @param {number} y height
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     * @private
     */

  }, {
    key: '_updateBoundingBox',
    value: function _updateBoundingBox(x, y, ctx, selected, hover) {
      if (ctx !== undefined) {
        this.resize(ctx, selected, hover);
      }

      this.left = x - this.width / 2;
      this.top = y - this.height / 2;

      this.boundingBox.left = this.left;
      this.boundingBox.top = this.top;
      this.boundingBox.bottom = this.top + this.height;
      this.boundingBox.right = this.left + this.width;
    }

    /**
     * Default implementation of this method call.
     * This acts as a stub which can be overridden.
     *
     * @param {number} x width
     * @param {number} y height
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     */

  }, {
    key: 'updateBoundingBox',
    value: function updateBoundingBox(x, y, ctx, selected, hover) {
      this._updateBoundingBox(x, y, ctx, selected, hover);
    }

    /**
     * Determine the dimensions to use for nodes with an internal label
     *
     * Currently, these are: Circle, Ellipse, Database, Box
     * The other nodes have external labels, and will not call this method
     *
     * If there is no label, decent default values are supplied.
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} [selected]
     * @param {boolean} [hover]
     * @returns {{width:number, height:number}}
     */

  }, {
    key: 'getDimensionsFromLabel',
    value: function getDimensionsFromLabel(ctx, selected, hover) {
      // NOTE: previously 'textSize' was not put in 'this' for Ellipse
      // TODO: examine the consequences.
      this.textSize = this.labelModule.getTextSize(ctx, selected, hover);
      var width = this.textSize.width;
      var height = this.textSize.height;

      var DEFAULT_SIZE = 14;
      if (width === 0) {
        // This happens when there is no label text set
        width = DEFAULT_SIZE; // use a decent default
        height = DEFAULT_SIZE; // if width zero, then height also always zero
      }

      return { width: width, height: height };
    }
  }]);
  return NodeBase;
}();

exports['default'] = NodeBase;

/***/ }),
/* 24 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _NodeBase2 = __webpack_require__(23);

var _NodeBase3 = _interopRequireDefault(_NodeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Base class for constructing Node/Cluster Shapes.
 *
 * @extends NodeBase
 */
var ShapeBase = function (_NodeBase) {
  (0, _inherits3['default'])(ShapeBase, _NodeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function ShapeBase(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, ShapeBase);
    return (0, _possibleConstructorReturn3['default'])(this, (ShapeBase.__proto__ || (0, _getPrototypeOf2['default'])(ShapeBase)).call(this, options, body, labelModule));
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {boolean} [selected]
   * @param {boolean} [hover]
   * @param {Object} [values={size: this.options.size}]
   */


  (0, _createClass3['default'])(ShapeBase, [{
    key: 'resize',
    value: function resize(ctx) {
      var selected = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.selected;
      var hover = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.hover;
      var values = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : { size: this.options.size };

      if (this.needsRefresh(selected, hover)) {
        this.labelModule.getTextSize(ctx, selected, hover);
        var size = 2 * values.size;
        this.width = size;
        this.height = size;
        this.radius = 0.5 * this.width;
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {string} shape
     * @param {number} sizeMultiplier - Unused! TODO: Remove next major release
     * @param {number} x
     * @param {number} y
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     * @private
     */

  }, {
    key: '_drawShape',
    value: function _drawShape(ctx, shape, sizeMultiplier, x, y, selected, hover, values) {
      this.resize(ctx, selected, hover, values);
      this.left = x - this.width / 2;
      this.top = y - this.height / 2;

      this.initContextForDraw(ctx, values);
      ctx[shape](x, y, values.size);
      this.performFill(ctx, values);

      if (this.options.label !== undefined) {
        // Need to call following here in order to ensure value for `this.labelModule.size.height`
        this.labelModule.calculateLabelSize(ctx, selected, hover, x, y, 'hanging');
        var yLabel = y + 0.5 * this.height + 0.5 * this.labelModule.size.height;
        this.labelModule.draw(ctx, x, yLabel, selected, hover, 'hanging');
      }

      this.updateBoundingBox(x, y);
    }

    /**
     *
     * @param {number} x
     * @param {number} y
     */

  }, {
    key: 'updateBoundingBox',
    value: function updateBoundingBox(x, y) {
      this.boundingBox.top = y - this.options.size;
      this.boundingBox.left = x - this.options.size;
      this.boundingBox.right = x + this.options.size;
      this.boundingBox.bottom = y + this.options.size;

      if (this.options.label !== undefined && this.labelModule.size.width > 0) {
        this.boundingBox.left = Math.min(this.boundingBox.left, this.labelModule.size.left);
        this.boundingBox.right = Math.max(this.boundingBox.right, this.labelModule.size.left + this.labelModule.size.width);
        this.boundingBox.bottom = Math.max(this.boundingBox.bottom, this.boundingBox.bottom + this.labelModule.size.height);
      }
    }
  }]);
  return ShapeBase;
}(_NodeBase3['default']);

exports['default'] = ShapeBase;

/***/ }),
/* 25 */
/***/ (function(module, exports, __webpack_require__) {

// to indexed object, toObject with fallback for non-array-like ES3 strings
var IObject = __webpack_require__(78);
var defined = __webpack_require__(51);
module.exports = function (it) {
  return IObject(defined(it));
};


/***/ }),
/* 26 */
/***/ (function(module, exports, __webpack_require__) {

var dP = __webpack_require__(20);
var createDesc = __webpack_require__(39);
module.exports = __webpack_require__(21) ? function (object, key, value) {
  return dP.f(object, key, createDesc(1, value));
} : function (object, key, value) {
  object[key] = value;
  return object;
};


/***/ }),
/* 27 */
/***/ (function(module, exports, __webpack_require__) {

var isObject = __webpack_require__(32);
module.exports = function (it) {
  if (!isObject(it)) throw TypeError(it + ' is not an object!');
  return it;
};


/***/ }),
/* 28 */
/***/ (function(module, exports) {

module.exports = function (exec) {
  try {
    return !!exec();
  } catch (e) {
    return true;
  }
};


/***/ }),
/* 29 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = { "default": __webpack_require__(138), __esModule: true };

/***/ }),
/* 30 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;

var _isIterable2 = __webpack_require__(188);

var _isIterable3 = _interopRequireDefault(_isIterable2);

var _getIterator2 = __webpack_require__(77);

var _getIterator3 = _interopRequireDefault(_getIterator2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

exports.default = function () {
  function sliceIterator(arr, i) {
    var _arr = [];
    var _n = true;
    var _d = false;
    var _e = undefined;

    try {
      for (var _i = (0, _getIterator3.default)(arr), _s; !(_n = (_s = _i.next()).done); _n = true) {
        _arr.push(_s.value);

        if (i && _arr.length === i) break;
      }
    } catch (err) {
      _d = true;
      _e = err;
    } finally {
      try {
        if (!_n && _i["return"]) _i["return"]();
      } finally {
        if (_d) throw _e;
      }
    }

    return _arr;
  }

  return function (arr, i) {
    if (Array.isArray(arr)) {
      return arr;
    } else if ((0, _isIterable3.default)(Object(arr))) {
      return sliceIterator(arr, i);
    } else {
      throw new TypeError("Invalid attempt to destructure non-iterable instance");
    }
  };
}();

/***/ }),
/* 31 */
/***/ (function(module, exports) {

module.exports = {};


/***/ }),
/* 32 */
/***/ (function(module, exports) {

module.exports = function (it) {
  return typeof it === 'object' ? it !== null : typeof it === 'function';
};


/***/ }),
/* 33 */
/***/ (function(module, exports, __webpack_require__) {

// 19.1.2.14 / 15.2.3.14 Object.keys(O)
var $keys = __webpack_require__(84);
var enumBugKeys = __webpack_require__(58);

module.exports = Object.keys || function keys(O) {
  return $keys(O, enumBugKeys);
};


/***/ }),
/* 34 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * @prototype Point3d
 * @param {number} [x]
 * @param {number} [y]
 * @param {number} [z]
 */
function Point3d(x, y, z) {
  this.x = x !== undefined ? x : 0;
  this.y = y !== undefined ? y : 0;
  this.z = z !== undefined ? z : 0;
}

/**
 * Subtract the two provided points, returns a-b
 * @param {Point3d} a
 * @param {Point3d} b
 * @return {Point3d} a-b
 */
Point3d.subtract = function (a, b) {
  var sub = new Point3d();
  sub.x = a.x - b.x;
  sub.y = a.y - b.y;
  sub.z = a.z - b.z;
  return sub;
};

/**
 * Add the two provided points, returns a+b
 * @param {Point3d} a
 * @param {Point3d} b
 * @return {Point3d} a+b
 */
Point3d.add = function (a, b) {
  var sum = new Point3d();
  sum.x = a.x + b.x;
  sum.y = a.y + b.y;
  sum.z = a.z + b.z;
  return sum;
};

/**
 * Calculate the average of two 3d points
 * @param {Point3d} a
 * @param {Point3d} b
 * @return {Point3d} The average, (a+b)/2
 */
Point3d.avg = function (a, b) {
  return new Point3d((a.x + b.x) / 2, (a.y + b.y) / 2, (a.z + b.z) / 2);
};

/**
 * Calculate the cross product of the two provided points, returns axb
 * Documentation: http://en.wikipedia.org/wiki/Cross_product
 * @param {Point3d} a
 * @param {Point3d} b
 * @return {Point3d} cross product axb
 */
Point3d.crossProduct = function (a, b) {
  var crossproduct = new Point3d();

  crossproduct.x = a.y * b.z - a.z * b.y;
  crossproduct.y = a.z * b.x - a.x * b.z;
  crossproduct.z = a.x * b.y - a.y * b.x;

  return crossproduct;
};

/**
 * Rtrieve the length of the vector (or the distance from this point to the origin
 * @return {number}  length
 */
Point3d.prototype.length = function () {
  return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z);
};

module.exports = Point3d;

/***/ }),
/* 35 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;
/**
 * Created by Alex on 11/6/2014.
 */

// https://github.com/umdjs/umd/blob/master/returnExports.js#L40-L60
// if the module has no dependencies, the above pattern can be simplified to
(function (root, factory) {
  if (true) {
    // AMD. Register as an anonymous module.
    !(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_FACTORY__ = (factory),
				__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?
				(__WEBPACK_AMD_DEFINE_FACTORY__.apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__)) : __WEBPACK_AMD_DEFINE_FACTORY__),
				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
  } else if (typeof exports === 'object') {
    // Node. Does not work with strict CommonJS, but
    // only CommonJS-like environments that support module.exports,
    // like Node.
    module.exports = factory();
  } else {
    // Browser globals (root is window)
    root.keycharm = factory();
  }
}(this, function () {

  function keycharm(options) {
    var preventDefault = options && options.preventDefault || false;

    var container = options && options.container || window;

    var _exportFunctions = {};
    var _bound = {keydown:{}, keyup:{}};
    var _keys = {};
    var i;

    // a - z
    for (i = 97; i <= 122; i++) {_keys[String.fromCharCode(i)] = {code:65 + (i - 97), shift: false};}
    // A - Z
    for (i = 65; i <= 90; i++) {_keys[String.fromCharCode(i)] = {code:i, shift: true};}
    // 0 - 9
    for (i = 0;  i <= 9;   i++) {_keys['' + i] = {code:48 + i, shift: false};}
    // F1 - F12
    for (i = 1;  i <= 12;   i++) {_keys['F' + i] = {code:111 + i, shift: false};}
    // num0 - num9
    for (i = 0;  i <= 9;   i++) {_keys['num' + i] = {code:96 + i, shift: false};}

    // numpad misc
    _keys['num*'] = {code:106, shift: false};
    _keys['num+'] = {code:107, shift: false};
    _keys['num-'] = {code:109, shift: false};
    _keys['num/'] = {code:111, shift: false};
    _keys['num.'] = {code:110, shift: false};
    // arrows
    _keys['left']  = {code:37, shift: false};
    _keys['up']    = {code:38, shift: false};
    _keys['right'] = {code:39, shift: false};
    _keys['down']  = {code:40, shift: false};
    // extra keys
    _keys['space'] = {code:32, shift: false};
    _keys['enter'] = {code:13, shift: false};
    _keys['shift'] = {code:16, shift: undefined};
    _keys['esc']   = {code:27, shift: false};
    _keys['backspace'] = {code:8, shift: false};
    _keys['tab']       = {code:9, shift: false};
    _keys['ctrl']      = {code:17, shift: false};
    _keys['alt']       = {code:18, shift: false};
    _keys['delete']    = {code:46, shift: false};
    _keys['pageup']    = {code:33, shift: false};
    _keys['pagedown']  = {code:34, shift: false};
    // symbols
    _keys['=']     = {code:187, shift: false};
    _keys['-']     = {code:189, shift: false};
    _keys[']']     = {code:221, shift: false};
    _keys['[']     = {code:219, shift: false};



    var down = function(event) {handleEvent(event,'keydown');};
    var up = function(event) {handleEvent(event,'keyup');};

    // handle the actualy bound key with the event
    var handleEvent = function(event,type) {
      if (_bound[type][event.keyCode] !== undefined) {
        var bound = _bound[type][event.keyCode];
        for (var i = 0; i < bound.length; i++) {
          if (bound[i].shift === undefined) {
            bound[i].fn(event);
          }
          else if (bound[i].shift == true && event.shiftKey == true) {
            bound[i].fn(event);
          }
          else if (bound[i].shift == false && event.shiftKey == false) {
            bound[i].fn(event);
          }
        }

        if (preventDefault == true) {
          event.preventDefault();
        }
      }
    };

    // bind a key to a callback
    _exportFunctions.bind = function(key, callback, type) {
      if (type === undefined) {
        type = 'keydown';
      }
      if (_keys[key] === undefined) {
        throw new Error("unsupported key: " + key);
      }
      if (_bound[type][_keys[key].code] === undefined) {
        _bound[type][_keys[key].code] = [];
      }
      _bound[type][_keys[key].code].push({fn:callback, shift:_keys[key].shift});
    };


    // bind all keys to a call back (demo purposes)
    _exportFunctions.bindAll = function(callback, type) {
      if (type === undefined) {
        type = 'keydown';
      }
      for (var key in _keys) {
        if (_keys.hasOwnProperty(key)) {
          _exportFunctions.bind(key,callback,type);
        }
      }
    };

    // get the key label from an event
    _exportFunctions.getKey = function(event) {
      for (var key in _keys) {
        if (_keys.hasOwnProperty(key)) {
          if (event.shiftKey == true && _keys[key].shift == true && event.keyCode == _keys[key].code) {
            return key;
          }
          else if (event.shiftKey == false && _keys[key].shift == false && event.keyCode == _keys[key].code) {
            return key;
          }
          else if (event.keyCode == _keys[key].code && key == 'shift') {
            return key;
          }
        }
      }
      return "unknown key, currently not supported";
    };

    // unbind either a specific callback from a key or all of them (by leaving callback undefined)
    _exportFunctions.unbind = function(key, callback, type) {
      if (type === undefined) {
        type = 'keydown';
      }
      if (_keys[key] === undefined) {
        throw new Error("unsupported key: " + key);
      }
      if (callback !== undefined) {
        var newBindings = [];
        var bound = _bound[type][_keys[key].code];
        if (bound !== undefined) {
          for (var i = 0; i < bound.length; i++) {
            if (!(bound[i].fn == callback && bound[i].shift == _keys[key].shift)) {
              newBindings.push(_bound[type][_keys[key].code][i]);
            }
          }
        }
        _bound[type][_keys[key].code] = newBindings;
      }
      else {
        _bound[type][_keys[key].code] = [];
      }
    };

    // reset all bound variables.
    _exportFunctions.reset = function() {
      _bound = {keydown:{}, keyup:{}};
    };

    // unbind all listeners and reset all variables.
    _exportFunctions.destroy = function() {
      _bound = {keydown:{}, keyup:{}};
      container.removeEventListener('keydown', down, true);
      container.removeEventListener('keyup', up, true);
    };

    // create listeners.
    container.addEventListener('keydown',down,true);
    container.addEventListener('keyup',up,true);

    // return the public functions.
    return _exportFunctions;
  }

  return keycharm;
}));




/***/ }),
/* 36 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * used in Core to convert the options into a volatile variable
 * 
 * @param {function} moment
 * @param {Object} body
 * @param {Array | Object} hiddenDates
 * @returns {number}
 */
exports.convertHiddenOptions = function (moment, body, hiddenDates) {
  if (hiddenDates && !Array.isArray(hiddenDates)) {
    return exports.convertHiddenOptions(moment, body, [hiddenDates]);
  }

  body.hiddenDates = [];
  if (hiddenDates) {
    if (Array.isArray(hiddenDates) == true) {
      for (var i = 0; i < hiddenDates.length; i++) {
        if (hiddenDates[i].repeat === undefined) {
          var dateItem = {};
          dateItem.start = moment(hiddenDates[i].start).toDate().valueOf();
          dateItem.end = moment(hiddenDates[i].end).toDate().valueOf();
          body.hiddenDates.push(dateItem);
        }
      }
      body.hiddenDates.sort(function (a, b) {
        return a.start - b.start;
      }); // sort by start time
    }
  }
};

/**
 * create new entrees for the repeating hidden dates
 *
 * @param {function} moment
 * @param {Object} body
 * @param {Array | Object} hiddenDates
 * @returns {null}
 */
exports.updateHiddenDates = function (moment, body, hiddenDates) {
  if (hiddenDates && !Array.isArray(hiddenDates)) {
    return exports.updateHiddenDates(moment, body, [hiddenDates]);
  }

  if (hiddenDates && body.domProps.centerContainer.width !== undefined) {
    exports.convertHiddenOptions(moment, body, hiddenDates);

    var start = moment(body.range.start);
    var end = moment(body.range.end);

    var totalRange = body.range.end - body.range.start;
    var pixelTime = totalRange / body.domProps.centerContainer.width;

    for (var i = 0; i < hiddenDates.length; i++) {
      if (hiddenDates[i].repeat !== undefined) {
        var startDate = moment(hiddenDates[i].start);
        var endDate = moment(hiddenDates[i].end);

        if (startDate._d == "Invalid Date") {
          throw new Error("Supplied start date is not valid: " + hiddenDates[i].start);
        }
        if (endDate._d == "Invalid Date") {
          throw new Error("Supplied end date is not valid: " + hiddenDates[i].end);
        }

        var duration = endDate - startDate;
        if (duration >= 4 * pixelTime) {

          var offset = 0;
          var runUntil = end.clone();
          switch (hiddenDates[i].repeat) {
            case "daily":
              // case of time
              if (startDate.day() != endDate.day()) {
                offset = 1;
              }
              startDate.dayOfYear(start.dayOfYear());
              startDate.year(start.year());
              startDate.subtract(7, 'days');

              endDate.dayOfYear(start.dayOfYear());
              endDate.year(start.year());
              endDate.subtract(7 - offset, 'days');

              runUntil.add(1, 'weeks');
              break;
            case "weekly":
              var dayOffset = endDate.diff(startDate, 'days');
              var day = startDate.day();

              // set the start date to the range.start
              startDate.date(start.date());
              startDate.month(start.month());
              startDate.year(start.year());
              endDate = startDate.clone();

              // force
              startDate.day(day);
              endDate.day(day);
              endDate.add(dayOffset, 'days');

              startDate.subtract(1, 'weeks');
              endDate.subtract(1, 'weeks');

              runUntil.add(1, 'weeks');
              break;
            case "monthly":
              if (startDate.month() != endDate.month()) {
                offset = 1;
              }
              startDate.month(start.month());
              startDate.year(start.year());
              startDate.subtract(1, 'months');

              endDate.month(start.month());
              endDate.year(start.year());
              endDate.subtract(1, 'months');
              endDate.add(offset, 'months');

              runUntil.add(1, 'months');
              break;
            case "yearly":
              if (startDate.year() != endDate.year()) {
                offset = 1;
              }
              startDate.year(start.year());
              startDate.subtract(1, 'years');
              endDate.year(start.year());
              endDate.subtract(1, 'years');
              endDate.add(offset, 'years');

              runUntil.add(1, 'years');
              break;
            default:
              console.log("Wrong repeat format, allowed are: daily, weekly, monthly, yearly. Given:", hiddenDates[i].repeat);
              return;
          }
          while (startDate < runUntil) {
            body.hiddenDates.push({ start: startDate.valueOf(), end: endDate.valueOf() });
            switch (hiddenDates[i].repeat) {
              case "daily":
                startDate.add(1, 'days');
                endDate.add(1, 'days');
                break;
              case "weekly":
                startDate.add(1, 'weeks');
                endDate.add(1, 'weeks');
                break;
              case "monthly":
                startDate.add(1, 'months');
                endDate.add(1, 'months');
                break;
              case "yearly":
                startDate.add(1, 'y');
                endDate.add(1, 'y');
                break;
              default:
                console.log("Wrong repeat format, allowed are: daily, weekly, monthly, yearly. Given:", hiddenDates[i].repeat);
                return;
            }
          }
          body.hiddenDates.push({ start: startDate.valueOf(), end: endDate.valueOf() });
        }
      }
    }
    // remove duplicates, merge where possible
    exports.removeDuplicates(body);
    // ensure the new positions are not on hidden dates
    var startHidden = exports.isHidden(body.range.start, body.hiddenDates);
    var endHidden = exports.isHidden(body.range.end, body.hiddenDates);
    var rangeStart = body.range.start;
    var rangeEnd = body.range.end;
    if (startHidden.hidden == true) {
      rangeStart = body.range.startToFront == true ? startHidden.startDate - 1 : startHidden.endDate + 1;
    }
    if (endHidden.hidden == true) {
      rangeEnd = body.range.endToFront == true ? endHidden.startDate - 1 : endHidden.endDate + 1;
    }
    if (startHidden.hidden == true || endHidden.hidden == true) {
      body.range._applyRange(rangeStart, rangeEnd);
    }
  }
};

/**
 * remove duplicates from the hidden dates list. Duplicates are evil. They mess everything up.
 * Scales with N^2
 *
 * @param {Object} body
 */
exports.removeDuplicates = function (body) {
  var hiddenDates = body.hiddenDates;
  var safeDates = [];
  for (var i = 0; i < hiddenDates.length; i++) {
    for (var j = 0; j < hiddenDates.length; j++) {
      if (i != j && hiddenDates[j].remove != true && hiddenDates[i].remove != true) {
        // j inside i
        if (hiddenDates[j].start >= hiddenDates[i].start && hiddenDates[j].end <= hiddenDates[i].end) {
          hiddenDates[j].remove = true;
        }
        // j start inside i
        else if (hiddenDates[j].start >= hiddenDates[i].start && hiddenDates[j].start <= hiddenDates[i].end) {
            hiddenDates[i].end = hiddenDates[j].end;
            hiddenDates[j].remove = true;
          }
          // j end inside i
          else if (hiddenDates[j].end >= hiddenDates[i].start && hiddenDates[j].end <= hiddenDates[i].end) {
              hiddenDates[i].start = hiddenDates[j].start;
              hiddenDates[j].remove = true;
            }
      }
    }
  }

  for (i = 0; i < hiddenDates.length; i++) {
    if (hiddenDates[i].remove !== true) {
      safeDates.push(hiddenDates[i]);
    }
  }

  body.hiddenDates = safeDates;
  body.hiddenDates.sort(function (a, b) {
    return a.start - b.start;
  }); // sort by start time
};

exports.printDates = function (dates) {
  for (var i = 0; i < dates.length; i++) {
    console.log(i, new Date(dates[i].start), new Date(dates[i].end), dates[i].start, dates[i].end, dates[i].remove);
  }
};

/**
 * Used in TimeStep to avoid the hidden times.
 * @param {function} moment
 * @param {TimeStep} timeStep
 * @param {Date} previousTime
 */
exports.stepOverHiddenDates = function (moment, timeStep, previousTime) {
  var stepInHidden = false;
  var currentValue = timeStep.current.valueOf();
  for (var i = 0; i < timeStep.hiddenDates.length; i++) {
    var startDate = timeStep.hiddenDates[i].start;
    var endDate = timeStep.hiddenDates[i].end;
    if (currentValue >= startDate && currentValue < endDate) {
      stepInHidden = true;
      break;
    }
  }

  if (stepInHidden == true && currentValue < timeStep._end.valueOf() && currentValue != previousTime) {
    var prevValue = moment(previousTime);
    var newValue = moment(endDate);
    //check if the next step should be major
    if (prevValue.year() != newValue.year()) {
      timeStep.switchedYear = true;
    } else if (prevValue.month() != newValue.month()) {
      timeStep.switchedMonth = true;
    } else if (prevValue.dayOfYear() != newValue.dayOfYear()) {
      timeStep.switchedDay = true;
    }

    timeStep.current = newValue;
  }
};

///**
// * Used in TimeStep to avoid the hidden times.
// * @param timeStep
// * @param previousTime
// */
//exports.checkFirstStep = function(timeStep) {
//  var stepInHidden = false;
//  var currentValue = timeStep.current.valueOf();
//  for (var i = 0; i < timeStep.hiddenDates.length; i++) {
//    var startDate = timeStep.hiddenDates[i].start;
//    var endDate = timeStep.hiddenDates[i].end;
//    if (currentValue >= startDate && currentValue < endDate) {
//      stepInHidden = true;
//      break;
//    }
//  }
//
//  if (stepInHidden == true && currentValue <= timeStep._end.valueOf()) {
//    var newValue = moment(endDate);
//    timeStep.current = newValue.toDate();
//  }
//};

/**
 * replaces the Core toScreen methods
 *
 * @param {vis.Core} Core
 * @param {Date} time
 * @param {number} width
 * @returns {number}
 */
exports.toScreen = function (Core, time, width) {
  var conversion;
  if (Core.body.hiddenDates.length == 0) {
    conversion = Core.range.conversion(width);
    return (time.valueOf() - conversion.offset) * conversion.scale;
  } else {
    var hidden = exports.isHidden(time, Core.body.hiddenDates);
    if (hidden.hidden == true) {
      time = hidden.startDate;
    }

    var duration = exports.getHiddenDurationBetween(Core.body.hiddenDates, Core.range.start, Core.range.end);
    if (time < Core.range.start) {
      conversion = Core.range.conversion(width, duration);
      var hiddenBeforeStart = exports.getHiddenDurationBeforeStart(Core.body.hiddenDates, time, conversion.offset);
      time = Core.options.moment(time).toDate().valueOf();
      time = time + hiddenBeforeStart;
      return -(conversion.offset - time.valueOf()) * conversion.scale;
    } else if (time > Core.range.end) {
      var rangeAfterEnd = { start: Core.range.start, end: time };
      time = exports.correctTimeForHidden(Core.options.moment, Core.body.hiddenDates, rangeAfterEnd, time);
      conversion = Core.range.conversion(width, duration);
      return (time.valueOf() - conversion.offset) * conversion.scale;
    } else {
      time = exports.correctTimeForHidden(Core.options.moment, Core.body.hiddenDates, Core.range, time);
      conversion = Core.range.conversion(width, duration);
      return (time.valueOf() - conversion.offset) * conversion.scale;
    }
  }
};

/**
 * Replaces the core toTime methods
 *
 * @param {vis.Core} Core
 * @param {number} x
 * @param {number} width
 * @returns {Date}
 */
exports.toTime = function (Core, x, width) {
  if (Core.body.hiddenDates.length == 0) {
    var conversion = Core.range.conversion(width);
    return new Date(x / conversion.scale + conversion.offset);
  } else {
    var hiddenDuration = exports.getHiddenDurationBetween(Core.body.hiddenDates, Core.range.start, Core.range.end);
    var totalDuration = Core.range.end - Core.range.start - hiddenDuration;
    var partialDuration = totalDuration * x / width;
    var accumulatedHiddenDuration = exports.getAccumulatedHiddenDuration(Core.body.hiddenDates, Core.range, partialDuration);

    return new Date(accumulatedHiddenDuration + partialDuration + Core.range.start);
  }
};

/**
 * Support function
 *
 * @param {Array.<{start: Window.start, end: *}>} hiddenDates
 * @param {number} start
 * @param {number} end
 * @returns {number}
 */
exports.getHiddenDurationBetween = function (hiddenDates, start, end) {
  var duration = 0;
  for (var i = 0; i < hiddenDates.length; i++) {
    var startDate = hiddenDates[i].start;
    var endDate = hiddenDates[i].end;
    // if time after the cutout, and the
    if (startDate >= start && endDate < end) {
      duration += endDate - startDate;
    }
  }
  return duration;
};

/**
 * Support function
 *
 * @param {Array.<{start: Window.start, end: *}>} hiddenDates
 * @param {number} start
 * @param {number} end
 * @returns {number}
 */
exports.getHiddenDurationBeforeStart = function (hiddenDates, start, end) {
  var duration = 0;
  for (var i = 0; i < hiddenDates.length; i++) {
    var startDate = hiddenDates[i].start;
    var endDate = hiddenDates[i].end;

    if (startDate >= start && endDate <= end) {
      duration += endDate - startDate;
    }
  }
  return duration;
};

/**
 * Support function
 * @param {function} moment
 * @param {Array.<{start: Window.start, end: *}>} hiddenDates
 * @param {{start: number, end: number}} range
 * @param {Date} time
 * @returns {number}
 */
exports.correctTimeForHidden = function (moment, hiddenDates, range, time) {
  time = moment(time).toDate().valueOf();
  time -= exports.getHiddenDurationBefore(moment, hiddenDates, range, time);
  return time;
};

exports.getHiddenDurationBefore = function (moment, hiddenDates, range, time) {
  var timeOffset = 0;
  time = moment(time).toDate().valueOf();

  for (var i = 0; i < hiddenDates.length; i++) {
    var startDate = hiddenDates[i].start;
    var endDate = hiddenDates[i].end;
    // if time after the cutout, and the
    if (startDate >= range.start && endDate < range.end) {
      if (time >= endDate) {
        timeOffset += endDate - startDate;
      }
    }
  }
  return timeOffset;
};

/**
 * sum the duration from start to finish, including the hidden duration,
 * until the required amount has been reached, return the accumulated hidden duration
 * @param {Array.<{start: Window.start, end: *}>} hiddenDates
 * @param {{start: number, end: number}} range
 * @param {number} [requiredDuration=0]
 * @returns {number}
 */
exports.getAccumulatedHiddenDuration = function (hiddenDates, range, requiredDuration) {
  var hiddenDuration = 0;
  var duration = 0;
  var previousPoint = range.start;
  //exports.printDates(hiddenDates)
  for (var i = 0; i < hiddenDates.length; i++) {
    var startDate = hiddenDates[i].start;
    var endDate = hiddenDates[i].end;
    // if time after the cutout, and the
    if (startDate >= range.start && endDate < range.end) {
      duration += startDate - previousPoint;
      previousPoint = endDate;
      if (duration >= requiredDuration) {
        break;
      } else {
        hiddenDuration += endDate - startDate;
      }
    }
  }

  return hiddenDuration;
};

/**
 * used to step over to either side of a hidden block. Correction is disabled on tablets, might be set to true
 * @param {Array.<{start: Window.start, end: *}>} hiddenDates
 * @param {Date} time
 * @param {number} direction
 * @param {boolean} correctionEnabled
 * @returns {Date|number}
 */
exports.snapAwayFromHidden = function (hiddenDates, time, direction, correctionEnabled) {
  var isHidden = exports.isHidden(time, hiddenDates);
  if (isHidden.hidden == true) {
    if (direction < 0) {
      if (correctionEnabled == true) {
        return isHidden.startDate - (isHidden.endDate - time) - 1;
      } else {
        return isHidden.startDate - 1;
      }
    } else {
      if (correctionEnabled == true) {
        return isHidden.endDate + (time - isHidden.startDate) + 1;
      } else {
        return isHidden.endDate + 1;
      }
    }
  } else {
    return time;
  }
};

/**
 * Check if a time is hidden
 *
 * @param {Date} time
 * @param {Array.<{start: Window.start, end: *}>} hiddenDates
 * @returns {{hidden: boolean, startDate: Window.start, endDate: *}}
 */
exports.isHidden = function (time, hiddenDates) {
  for (var i = 0; i < hiddenDates.length; i++) {
    var startDate = hiddenDates[i].start;
    var endDate = hiddenDates[i].end;

    if (time >= startDate && time < endDate) {
      // if the start is entering a hidden zone
      return { hidden: true, startDate: startDate, endDate: endDate };
    }
  }
  return { hidden: false, startDate: startDate, endDate: endDate };
};

/***/ }),
/* 37 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * Register a touch event, taking place before a gesture
 * @param {Hammer} hammer       A hammer instance
 * @param {function} callback   Callback, called as callback(event)
 */
exports.onTouch = function (hammer, callback) {
  callback.inputHandler = function (event) {
    if (event.isFirst) {
      callback(event);
    }
  };

  hammer.on('hammer.input', callback.inputHandler);
};

/**
 * Register a release event, taking place after a gesture
 * @param {Hammer} hammer       A hammer instance
 * @param {function} callback   Callback, called as callback(event)
 * @returns {*}
 */
exports.onRelease = function (hammer, callback) {
  callback.inputHandler = function (event) {
    if (event.isFinal) {
      callback(event);
    }
  };

  return hammer.on('hammer.input', callback.inputHandler);
};

/**
 * Unregister a touch event, taking place before a gesture
 * @param {Hammer} hammer       A hammer instance
 * @param {function} callback   Callback, called as callback(event)
 */
exports.offTouch = function (hammer, callback) {
  hammer.off('hammer.input', callback.inputHandler);
};

/**
 * Unregister a release event, taking place before a gesture
 * @param {Hammer} hammer       A hammer instance
 * @param {function} callback   Callback, called as callback(event)
 */
exports.offRelease = exports.offTouch;

/**
 * Hack the PinchRecognizer such that it doesn't prevent default behavior
 * for vertical panning.
 *
 * Yeah ... this is quite a hack ... see https://github.com/hammerjs/hammer.js/issues/932
 *
 * @param {Hammer.Pinch} pinchRecognizer
 * @return {Hammer.Pinch} returns the pinchRecognizer
 */
exports.disablePreventDefaultVertically = function (pinchRecognizer) {
  var TOUCH_ACTION_PAN_Y = 'pan-y';

  pinchRecognizer.getTouchAction = function () {
    // default method returns [TOUCH_ACTION_NONE]
    return [TOUCH_ACTION_PAN_Y];
  };

  return pinchRecognizer;
};

/***/ }),
/* 38 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

var _keys = __webpack_require__(8);

var _keys2 = _interopRequireDefault(_keys);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var Hammer = __webpack_require__(10);
var util = __webpack_require__(2);
var moment = __webpack_require__(9);

/**
 * @constructor Item
 * @param {Object} data             Object containing (optional) parameters type,
 *                                  start, end, content, group, className.
 * @param {{toScreen: function, toTime: function}} conversion
 *                                  Conversion functions from time to screen and vice versa
 * @param {Object} options          Configuration options
 *                                  // TODO: describe available options
 */
function Item(data, conversion, options) {
  this.id = null;
  this.parent = null;
  this.data = data;
  this.dom = null;
  this.conversion = conversion || {};
  this.options = options || {};
  this.selected = false;
  this.displayed = false;
  this.groupShowing = true;
  this.dirty = true;

  this.top = null;
  this.right = null;
  this.left = null;
  this.width = null;
  this.height = null;

  this.editable = null;
  this._updateEditStatus();
}

Item.prototype.stack = true;

/**
 * Select current item
 */
Item.prototype.select = function () {
  this.selected = true;
  this.dirty = true;
  if (this.displayed) this.redraw();
};

/**
 * Unselect current item
 */
Item.prototype.unselect = function () {
  this.selected = false;
  this.dirty = true;
  if (this.displayed) this.redraw();
};

/**
 * Set data for the item. Existing data will be updated. The id should not
 * be changed. When the item is displayed, it will be redrawn immediately.
 * @param {Object} data
 */
Item.prototype.setData = function (data) {
  var groupChanged = data.group != undefined && this.data.group != data.group;
  if (groupChanged && this.parent != null) {
    this.parent.itemSet._moveToGroup(this, data.group);
  }

  if (this.parent) {
    this.parent.stackDirty = true;
  }

  var subGroupChanged = data.subgroup != undefined && this.data.subgroup != data.subgroup;
  if (subGroupChanged && this.parent != null) {
    this.parent.changeSubgroup(this, this.data.subgroup, data.subgroup);
  }

  this.data = data;
  this._updateEditStatus();
  this.dirty = true;
  if (this.displayed) this.redraw();
};

/**
 * Set a parent for the item
 * @param {Group} parent
 */
Item.prototype.setParent = function (parent) {
  if (this.displayed) {
    this.hide();
    this.parent = parent;
    if (this.parent) {
      this.show();
    }
  } else {
    this.parent = parent;
  }
};

/**
 * Check whether this item is visible inside given range
 * @param {vis.Range} range with a timestamp for start and end
 * @returns {boolean} True if visible
 */
Item.prototype.isVisible = function (range) {
  // eslint-disable-line no-unused-vars
  return false;
};

/**
 * Show the Item in the DOM (when not already visible)
 * @return {Boolean} changed
 */
Item.prototype.show = function () {
  return false;
};

/**
 * Hide the Item from the DOM (when visible)
 * @return {Boolean} changed
 */
Item.prototype.hide = function () {
  return false;
};

/**
 * Repaint the item
 */
Item.prototype.redraw = function () {
  // should be implemented by the item
};

/**
 * Reposition the Item horizontally
 */
Item.prototype.repositionX = function () {
  // should be implemented by the item
};

/**
 * Reposition the Item vertically
 */
Item.prototype.repositionY = function () {
  // should be implemented by the item
};

/**
 * Repaint a drag area on the center of the item when the item is selected
 * @protected
 */
Item.prototype._repaintDragCenter = function () {
  if (this.selected && this.options.editable.updateTime && !this.dom.dragCenter) {
    var me = this;
    // create and show drag area
    var dragCenter = document.createElement('div');
    dragCenter.className = 'vis-drag-center';
    dragCenter.dragCenterItem = this;
    var hammer = new Hammer(dragCenter);

    hammer.on('tap', function (event) {
      me.parent.itemSet.body.emitter.emit('click', {
        event: event,
        item: me.id
      });
    });
    hammer.on('doubletap', function (event) {
      event.stopPropagation();
      me.parent.itemSet._onUpdateItem(me);
      me.parent.itemSet.body.emitter.emit('doubleClick', {
        event: event,
        item: me.id
      });
    });

    if (this.dom.box) {
      if (this.dom.dragLeft) {
        this.dom.box.insertBefore(dragCenter, this.dom.dragLeft);
      } else {
        this.dom.box.appendChild(dragCenter);
      }
    } else if (this.dom.point) {
      this.dom.point.appendChild(dragCenter);
    }

    this.dom.dragCenter = dragCenter;
  } else if (!this.selected && this.dom.dragCenter) {
    // delete drag area
    if (this.dom.dragCenter.parentNode) {
      this.dom.dragCenter.parentNode.removeChild(this.dom.dragCenter);
    }
    this.dom.dragCenter = null;
  }
};

/**
 * Repaint a delete button on the top right of the item when the item is selected
 * @param {HTMLElement} anchor
 * @protected
 */
Item.prototype._repaintDeleteButton = function (anchor) {
  var editable = (this.options.editable.overrideItems || this.editable == null) && this.options.editable.remove || !this.options.editable.overrideItems && this.editable != null && this.editable.remove;

  if (this.selected && editable && !this.dom.deleteButton) {
    // create and show button
    var me = this;

    var deleteButton = document.createElement('div');

    if (this.options.rtl) {
      deleteButton.className = 'vis-delete-rtl';
    } else {
      deleteButton.className = 'vis-delete';
    }
    deleteButton.title = 'Delete this item';

    // TODO: be able to destroy the delete button
    new Hammer(deleteButton).on('tap', function (event) {
      event.stopPropagation();
      me.parent.removeFromDataSet(me);
    });

    anchor.appendChild(deleteButton);
    this.dom.deleteButton = deleteButton;
  } else if (!this.selected && this.dom.deleteButton) {
    // remove button
    if (this.dom.deleteButton.parentNode) {
      this.dom.deleteButton.parentNode.removeChild(this.dom.deleteButton);
    }
    this.dom.deleteButton = null;
  }
};

/**
 * Repaint a onChange tooltip on the top right of the item when the item is selected
 * @param {HTMLElement} anchor
 * @protected
 */
Item.prototype._repaintOnItemUpdateTimeTooltip = function (anchor) {
  if (!this.options.tooltipOnItemUpdateTime) return;

  var editable = (this.options.editable.updateTime || this.data.editable === true) && this.data.editable !== false;

  if (this.selected && editable && !this.dom.onItemUpdateTimeTooltip) {
    var onItemUpdateTimeTooltip = document.createElement('div');

    onItemUpdateTimeTooltip.className = 'vis-onUpdateTime-tooltip';
    anchor.appendChild(onItemUpdateTimeTooltip);
    this.dom.onItemUpdateTimeTooltip = onItemUpdateTimeTooltip;
  } else if (!this.selected && this.dom.onItemUpdateTimeTooltip) {
    // remove button
    if (this.dom.onItemUpdateTimeTooltip.parentNode) {
      this.dom.onItemUpdateTimeTooltip.parentNode.removeChild(this.dom.onItemUpdateTimeTooltip);
    }
    this.dom.onItemUpdateTimeTooltip = null;
  }

  // position onChange tooltip
  if (this.dom.onItemUpdateTimeTooltip) {

    // only show when editing
    this.dom.onItemUpdateTimeTooltip.style.visibility = this.parent.itemSet.touchParams.itemIsDragging ? 'visible' : 'hidden';

    // position relative to item's content
    if (this.options.rtl) {
      this.dom.onItemUpdateTimeTooltip.style.right = this.dom.content.style.right;
    } else {
      this.dom.onItemUpdateTimeTooltip.style.left = this.dom.content.style.left;
    }

    // position above or below the item depending on the item's position in the window
    var tooltipOffset = 50; // TODO: should be tooltip height (depends on template)
    var scrollTop = this.parent.itemSet.body.domProps.scrollTop;

    // TODO: this.top for orientation:true is actually the items distance from the bottom... 
    // (should be this.bottom)
    var itemDistanceFromTop;
    if (this.options.orientation.item == 'top') {
      itemDistanceFromTop = this.top;
    } else {
      itemDistanceFromTop = this.parent.height - this.top - this.height;
    }
    var isCloseToTop = itemDistanceFromTop + this.parent.top - tooltipOffset < -scrollTop;

    if (isCloseToTop) {
      this.dom.onItemUpdateTimeTooltip.style.bottom = "";
      this.dom.onItemUpdateTimeTooltip.style.top = this.height + 2 + "px";
    } else {
      this.dom.onItemUpdateTimeTooltip.style.top = "";
      this.dom.onItemUpdateTimeTooltip.style.bottom = this.height + 2 + "px";
    }

    // handle tooltip content
    var content;
    var templateFunction;

    if (this.options.tooltipOnItemUpdateTime && this.options.tooltipOnItemUpdateTime.template) {
      templateFunction = this.options.tooltipOnItemUpdateTime.template.bind(this);
      content = templateFunction(this.data);
    } else {
      content = 'start: ' + moment(this.data.start).format('MM/DD/YYYY hh:mm');
      if (this.data.end) {
        content += '<br> end: ' + moment(this.data.end).format('MM/DD/YYYY hh:mm');
      }
    }
    this.dom.onItemUpdateTimeTooltip.innerHTML = content;
  }
};

/**
 * Set HTML contents for the item
 * @param {Element} element   HTML element to fill with the contents
 * @private
 */
Item.prototype._updateContents = function (element) {
  var content;
  var changed;
  var templateFunction;
  var itemVisibleFrameContent;
  var visibleFrameTemplateFunction;
  var itemData = this.parent.itemSet.itemsData.get(this.id); // get a clone of the data from the dataset

  var frameElement = this.dom.box || this.dom.point;
  var itemVisibleFrameContentElement = frameElement.getElementsByClassName('vis-item-visible-frame')[0];

  if (this.options.visibleFrameTemplate) {
    visibleFrameTemplateFunction = this.options.visibleFrameTemplate.bind(this);
    itemVisibleFrameContent = visibleFrameTemplateFunction(itemData, frameElement);
  } else {
    itemVisibleFrameContent = '';
  }

  if (itemVisibleFrameContentElement) {
    if (itemVisibleFrameContent instanceof Object && !(itemVisibleFrameContent instanceof Element)) {
      visibleFrameTemplateFunction(itemData, itemVisibleFrameContentElement);
    } else {
      changed = this._contentToString(this.itemVisibleFrameContent) !== this._contentToString(itemVisibleFrameContent);
      if (changed) {
        // only replace the content when changed
        if (itemVisibleFrameContent instanceof Element) {
          itemVisibleFrameContentElement.innerHTML = '';
          itemVisibleFrameContentElement.appendChild(itemVisibleFrameContent);
        } else if (itemVisibleFrameContent != undefined) {
          itemVisibleFrameContentElement.innerHTML = itemVisibleFrameContent;
        } else {
          if (!(this.data.type == 'background' && this.data.content === undefined)) {
            throw new Error('Property "content" missing in item ' + this.id);
          }
        }

        this.itemVisibleFrameContent = itemVisibleFrameContent;
      }
    }
  }

  if (this.options.template) {
    templateFunction = this.options.template.bind(this);
    content = templateFunction(itemData, element, this.data);
  } else {
    content = this.data.content;
  }

  if (content instanceof Object && !(content instanceof Element)) {
    templateFunction(itemData, element);
  } else {
    changed = this._contentToString(this.content) !== this._contentToString(content);
    if (changed) {
      // only replace the content when changed
      if (content instanceof Element) {
        element.innerHTML = '';
        element.appendChild(content);
      } else if (content != undefined) {
        element.innerHTML = content;
      } else {
        if (!(this.data.type == 'background' && this.data.content === undefined)) {
          throw new Error('Property "content" missing in item ' + this.id);
        }
      }
      this.content = content;
    }
  }
};

/**
 * Process dataAttributes timeline option and set as data- attributes on dom.content
 * @param {Element} element   HTML element to which the attributes will be attached
 * @private
 */
Item.prototype._updateDataAttributes = function (element) {
  if (this.options.dataAttributes && this.options.dataAttributes.length > 0) {
    var attributes = [];

    if (Array.isArray(this.options.dataAttributes)) {
      attributes = this.options.dataAttributes;
    } else if (this.options.dataAttributes == 'all') {
      attributes = (0, _keys2['default'])(this.data);
    } else {
      return;
    }

    for (var i = 0; i < attributes.length; i++) {
      var name = attributes[i];
      var value = this.data[name];

      if (value != null) {
        element.setAttribute('data-' + name, value);
      } else {
        element.removeAttribute('data-' + name);
      }
    }
  }
};

/**
 * Update custom styles of the element
 * @param {Element} element
 * @private
 */
Item.prototype._updateStyle = function (element) {
  // remove old styles
  if (this.style) {
    util.removeCssText(element, this.style);
    this.style = null;
  }

  // append new styles
  if (this.data.style) {
    util.addCssText(element, this.data.style);
    this.style = this.data.style;
  }
};

/**
 * Stringify the items contents
 * @param {string | Element | undefined} content
 * @returns {string | undefined}
 * @private
 */
Item.prototype._contentToString = function (content) {
  if (typeof content === 'string') return content;
  if (content && 'outerHTML' in content) return content.outerHTML;
  return content;
};

/**
 * Update the editability of this item.
 */
Item.prototype._updateEditStatus = function () {
  if (this.options) {
    if (typeof this.options.editable === 'boolean') {
      this.editable = {
        updateTime: this.options.editable,
        updateGroup: this.options.editable,
        remove: this.options.editable
      };
    } else if ((0, _typeof3['default'])(this.options.editable) === 'object') {
      this.editable = {};
      util.selectiveExtend(['updateTime', 'updateGroup', 'remove'], this.editable, this.options.editable);
    }
  }
  // Item data overrides, except if options.editable.overrideItems is set.
  if (!this.options || !this.options.editable || this.options.editable.overrideItems !== true) {
    if (this.data) {
      if (typeof this.data.editable === 'boolean') {
        this.editable = {
          updateTime: this.data.editable,
          updateGroup: this.data.editable,
          remove: this.data.editable
        };
      } else if ((0, _typeof3['default'])(this.data.editable) === 'object') {
        // TODO: in vis.js 5.0, we should change this to not reset options from the timeline configuration.
        // Basically just remove the next line...
        this.editable = {};
        util.selectiveExtend(['updateTime', 'updateGroup', 'remove'], this.editable, this.data.editable);
      }
    }
  }
};

/**
 * Return the width of the item left from its start date
 * @return {number}
 */
Item.prototype.getWidthLeft = function () {
  return 0;
};

/**
 * Return the width of the item right from the max of its start and end date
 * @return {number}
 */
Item.prototype.getWidthRight = function () {
  return 0;
};

/**
 * Return the title of the item
 * @return {string | undefined}
 */
Item.prototype.getTitle = function () {
  return this.data.title;
};

module.exports = Item;

/***/ }),
/* 39 */
/***/ (function(module, exports) {

module.exports = function (bitmap, value) {
  return {
    enumerable: !(bitmap & 1),
    configurable: !(bitmap & 2),
    writable: !(bitmap & 4),
    value: value
  };
};


/***/ }),
/* 40 */
/***/ (function(module, exports) {

var id = 0;
var px = Math.random();
module.exports = function (key) {
  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
};


/***/ }),
/* 41 */
/***/ (function(module, exports, __webpack_require__) {

// 7.1.13 ToObject(argument)
var defined = __webpack_require__(51);
module.exports = function (it) {
  return Object(defined(it));
};


/***/ }),
/* 42 */
/***/ (function(module, exports) {

exports.f = {}.propertyIsEnumerable;


/***/ }),
/* 43 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * A queue
 * @param {Object} options
 *            Available options:
 *            - delay: number    When provided, the queue will be flushed
 *                               automatically after an inactivity of this delay
 *                               in milliseconds.
 *                               Default value is null.
 *            - max: number      When the queue exceeds the given maximum number
 *                               of entries, the queue is flushed automatically.
 *                               Default value of max is Infinity.
 * @constructor Queue
 */
function Queue(options) {
  // options
  this.delay = null;
  this.max = Infinity;

  // properties
  this._queue = [];
  this._timeout = null;
  this._extended = null;

  this.setOptions(options);
}

/**
 * Update the configuration of the queue
 * @param {Object} options
 *            Available options:
 *            - delay: number    When provided, the queue will be flushed
 *                               automatically after an inactivity of this delay
 *                               in milliseconds.
 *                               Default value is null.
 *            - max: number      When the queue exceeds the given maximum number
 *                               of entries, the queue is flushed automatically.
 *                               Default value of max is Infinity.
 */
Queue.prototype.setOptions = function (options) {
  if (options && typeof options.delay !== 'undefined') {
    this.delay = options.delay;
  }
  if (options && typeof options.max !== 'undefined') {
    this.max = options.max;
  }

  this._flushIfNeeded();
};

/**
 * Extend an object with queuing functionality.
 * The object will be extended with a function flush, and the methods provided
 * in options.replace will be replaced with queued ones.
 * @param {Object} object
 * @param {Object} options
 *            Available options:
 *            - replace: Array.<string>
 *                               A list with method names of the methods
 *                               on the object to be replaced with queued ones.
 *            - delay: number    When provided, the queue will be flushed
 *                               automatically after an inactivity of this delay
 *                               in milliseconds.
 *                               Default value is null.
 *            - max: number      When the queue exceeds the given maximum number
 *                               of entries, the queue is flushed automatically.
 *                               Default value of max is Infinity.
 * @return {Queue} Returns the created queue
 */
Queue.extend = function (object, options) {
  var queue = new Queue(options);

  if (object.flush !== undefined) {
    throw new Error('Target object already has a property flush');
  }
  object.flush = function () {
    queue.flush();
  };

  var methods = [{
    name: 'flush',
    original: undefined
  }];

  if (options && options.replace) {
    for (var i = 0; i < options.replace.length; i++) {
      var name = options.replace[i];
      methods.push({
        name: name,
        original: object[name]
      });
      queue.replace(object, name);
    }
  }

  queue._extended = {
    object: object,
    methods: methods
  };

  return queue;
};

/**
 * Destroy the queue. The queue will first flush all queued actions, and in
 * case it has extended an object, will restore the original object.
 */
Queue.prototype.destroy = function () {
  this.flush();

  if (this._extended) {
    var object = this._extended.object;
    var methods = this._extended.methods;
    for (var i = 0; i < methods.length; i++) {
      var method = methods[i];
      if (method.original) {
        object[method.name] = method.original;
      } else {
        delete object[method.name];
      }
    }
    this._extended = null;
  }
};

/**
 * Replace a method on an object with a queued version
 * @param {Object} object   Object having the method
 * @param {string} method   The method name
 */
Queue.prototype.replace = function (object, method) {
  var me = this;
  var original = object[method];
  if (!original) {
    throw new Error('Method ' + method + ' undefined');
  }

  object[method] = function () {
    // create an Array with the arguments
    var args = [];
    for (var i = 0; i < arguments.length; i++) {
      args[i] = arguments[i];
    }

    // add this call to the queue
    me.queue({
      args: args,
      fn: original,
      context: this
    });
  };
};

/**
 * Queue a call
 * @param {function | {fn: function, args: Array} | {fn: function, args: Array, context: Object}} entry
 */
Queue.prototype.queue = function (entry) {
  if (typeof entry === 'function') {
    this._queue.push({ fn: entry });
  } else {
    this._queue.push(entry);
  }

  this._flushIfNeeded();
};

/**
 * Check whether the queue needs to be flushed
 * @private
 */
Queue.prototype._flushIfNeeded = function () {
  // flush when the maximum is exceeded.
  if (this._queue.length > this.max) {
    this.flush();
  }

  // flush after a period of inactivity when a delay is configured
  clearTimeout(this._timeout);
  if (this.queue.length > 0 && typeof this.delay === 'number') {
    var me = this;
    this._timeout = setTimeout(function () {
      me.flush();
    }, this.delay);
  }
};

/**
 * Flush all queued calls
 */
Queue.prototype.flush = function () {
  while (this._queue.length > 0) {
    var entry = this._queue.shift();
    entry.fn.apply(entry.context || entry.fn, entry.args || []);
  }
};

module.exports = Queue;

/***/ }),
/* 44 */
/***/ (function(module, exports) {


/**
 * Expose `Emitter`.
 */

module.exports = Emitter;

/**
 * Initialize a new `Emitter`.
 *
 * @api public
 */

function Emitter(obj) {
  if (obj) return mixin(obj);
};

/**
 * Mixin the emitter properties.
 *
 * @param {Object} obj
 * @return {Object}
 * @api private
 */

function mixin(obj) {
  for (var key in Emitter.prototype) {
    obj[key] = Emitter.prototype[key];
  }
  return obj;
}

/**
 * Listen on the given `event` with `fn`.
 *
 * @param {String} event
 * @param {Function} fn
 * @return {Emitter}
 * @api public
 */

Emitter.prototype.on =
Emitter.prototype.addEventListener = function(event, fn){
  this._callbacks = this._callbacks || {};
  (this._callbacks[event] = this._callbacks[event] || [])
    .push(fn);
  return this;
};

/**
 * Adds an `event` listener that will be invoked a single
 * time then automatically removed.
 *
 * @param {String} event
 * @param {Function} fn
 * @return {Emitter}
 * @api public
 */

Emitter.prototype.once = function(event, fn){
  var self = this;
  this._callbacks = this._callbacks || {};

  function on() {
    self.off(event, on);
    fn.apply(this, arguments);
  }

  on.fn = fn;
  this.on(event, on);
  return this;
};

/**
 * Remove the given callback for `event` or all
 * registered callbacks.
 *
 * @param {String} event
 * @param {Function} fn
 * @return {Emitter}
 * @api public
 */

Emitter.prototype.off =
Emitter.prototype.removeListener =
Emitter.prototype.removeAllListeners =
Emitter.prototype.removeEventListener = function(event, fn){
  this._callbacks = this._callbacks || {};

  // all
  if (0 == arguments.length) {
    this._callbacks = {};
    return this;
  }

  // specific event
  var callbacks = this._callbacks[event];
  if (!callbacks) return this;

  // remove all handlers
  if (1 == arguments.length) {
    delete this._callbacks[event];
    return this;
  }

  // remove specific handler
  var cb;
  for (var i = 0; i < callbacks.length; i++) {
    cb = callbacks[i];
    if (cb === fn || cb.fn === fn) {
      callbacks.splice(i, 1);
      break;
    }
  }
  return this;
};

/**
 * Emit `event` with the given args.
 *
 * @param {String} event
 * @param {Mixed} ...
 * @return {Emitter}
 */

Emitter.prototype.emit = function(event){
  this._callbacks = this._callbacks || {};
  var args = [].slice.call(arguments, 1)
    , callbacks = this._callbacks[event];

  if (callbacks) {
    callbacks = callbacks.slice(0);
    for (var i = 0, len = callbacks.length; i < len; ++i) {
      callbacks[i].apply(this, args);
    }
  }

  return this;
};

/**
 * Return array of callbacks for `event`.
 *
 * @param {String} event
 * @return {Array}
 * @api public
 */

Emitter.prototype.listeners = function(event){
  this._callbacks = this._callbacks || {};
  return this._callbacks[event] || [];
};

/**
 * Check if this emitter has `event` handlers.
 *
 * @param {String} event
 * @return {Boolean}
 * @api public
 */

Emitter.prototype.hasListeners = function(event){
  return !! this.listeners(event).length;
};


/***/ }),
/* 45 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var Component = __webpack_require__(16);
var TimeStep = __webpack_require__(66);
var DateUtil = __webpack_require__(36);
var moment = __webpack_require__(9);

/**
 * A horizontal time axis
 * @param {{dom: Object, domProps: Object, emitter: Emitter, range: Range}} body
 * @param {Object} [options]        See TimeAxis.setOptions for the available
 *                                  options.
 * @constructor TimeAxis
 * @extends Component
 */
function TimeAxis(body, options) {
  this.dom = {
    foreground: null,
    lines: [],
    majorTexts: [],
    minorTexts: [],
    redundant: {
      lines: [],
      majorTexts: [],
      minorTexts: []
    }
  };
  this.props = {
    range: {
      start: 0,
      end: 0,
      minimumStep: 0
    },
    lineTop: 0
  };

  this.defaultOptions = {
    orientation: {
      axis: 'bottom'
    }, // axis orientation: 'top' or 'bottom'
    showMinorLabels: true,
    showMajorLabels: true,
    maxMinorChars: 7,
    format: TimeStep.FORMAT,
    moment: moment,
    timeAxis: null
  };
  this.options = util.extend({}, this.defaultOptions);

  this.body = body;

  // create the HTML DOM
  this._create();

  this.setOptions(options);
}

TimeAxis.prototype = new Component();

/**
 * Set options for the TimeAxis.
 * Parameters will be merged in current options.
 * @param {Object} options  Available options:
 *                          {string} [orientation.axis]
 *                          {boolean} [showMinorLabels]
 *                          {boolean} [showMajorLabels]
 */
TimeAxis.prototype.setOptions = function (options) {
  if (options) {
    // copy all options that we know
    util.selectiveExtend(['showMinorLabels', 'showMajorLabels', 'maxMinorChars', 'hiddenDates', 'timeAxis', 'moment', 'rtl'], this.options, options);

    // deep copy the format options
    util.selectiveDeepExtend(['format'], this.options, options);

    if ('orientation' in options) {
      if (typeof options.orientation === 'string') {
        this.options.orientation.axis = options.orientation;
      } else if ((0, _typeof3['default'])(options.orientation) === 'object' && 'axis' in options.orientation) {
        this.options.orientation.axis = options.orientation.axis;
      }
    }

    // apply locale to moment.js
    // TODO: not so nice, this is applied globally to moment.js
    if ('locale' in options) {
      if (typeof moment.locale === 'function') {
        // moment.js 2.8.1+
        moment.locale(options.locale);
      } else {
        moment.lang(options.locale);
      }
    }
  }
};

/**
 * Create the HTML DOM for the TimeAxis
 */
TimeAxis.prototype._create = function () {
  this.dom.foreground = document.createElement('div');
  this.dom.background = document.createElement('div');

  this.dom.foreground.className = 'vis-time-axis vis-foreground';
  this.dom.background.className = 'vis-time-axis vis-background';
};

/**
 * Destroy the TimeAxis
 */
TimeAxis.prototype.destroy = function () {
  // remove from DOM
  if (this.dom.foreground.parentNode) {
    this.dom.foreground.parentNode.removeChild(this.dom.foreground);
  }
  if (this.dom.background.parentNode) {
    this.dom.background.parentNode.removeChild(this.dom.background);
  }

  this.body = null;
};

/**
 * Repaint the component
 * @return {boolean} Returns true if the component is resized
 */
TimeAxis.prototype.redraw = function () {
  var props = this.props;
  var foreground = this.dom.foreground;
  var background = this.dom.background;

  // determine the correct parent DOM element (depending on option orientation)
  var parent = this.options.orientation.axis == 'top' ? this.body.dom.top : this.body.dom.bottom;
  var parentChanged = foreground.parentNode !== parent;

  // calculate character width and height
  this._calculateCharSize();

  // TODO: recalculate sizes only needed when parent is resized or options is changed
  var showMinorLabels = this.options.showMinorLabels && this.options.orientation.axis !== 'none';
  var showMajorLabels = this.options.showMajorLabels && this.options.orientation.axis !== 'none';

  // determine the width and height of the elemens for the axis
  props.minorLabelHeight = showMinorLabels ? props.minorCharHeight : 0;
  props.majorLabelHeight = showMajorLabels ? props.majorCharHeight : 0;
  props.height = props.minorLabelHeight + props.majorLabelHeight;
  props.width = foreground.offsetWidth;

  props.minorLineHeight = this.body.domProps.root.height - props.majorLabelHeight - (this.options.orientation.axis == 'top' ? this.body.domProps.bottom.height : this.body.domProps.top.height);
  props.minorLineWidth = 1; // TODO: really calculate width
  props.majorLineHeight = props.minorLineHeight + props.majorLabelHeight;
  props.majorLineWidth = 1; // TODO: really calculate width

  //  take foreground and background offline while updating (is almost twice as fast)
  var foregroundNextSibling = foreground.nextSibling;
  var backgroundNextSibling = background.nextSibling;
  foreground.parentNode && foreground.parentNode.removeChild(foreground);
  background.parentNode && background.parentNode.removeChild(background);

  foreground.style.height = this.props.height + 'px';

  this._repaintLabels();

  // put DOM online again (at the same place)
  if (foregroundNextSibling) {
    parent.insertBefore(foreground, foregroundNextSibling);
  } else {
    parent.appendChild(foreground);
  }
  if (backgroundNextSibling) {
    this.body.dom.backgroundVertical.insertBefore(background, backgroundNextSibling);
  } else {
    this.body.dom.backgroundVertical.appendChild(background);
  }
  return this._isResized() || parentChanged;
};

/**
 * Repaint major and minor text labels and vertical grid lines
 * @private
 */
TimeAxis.prototype._repaintLabels = function () {
  var orientation = this.options.orientation.axis;

  // calculate range and step (step such that we have space for 7 characters per label)
  var start = util.convert(this.body.range.start, 'Number');
  var end = util.convert(this.body.range.end, 'Number');
  var timeLabelsize = this.body.util.toTime((this.props.minorCharWidth || 10) * this.options.maxMinorChars).valueOf();
  var minimumStep = timeLabelsize - DateUtil.getHiddenDurationBefore(this.options.moment, this.body.hiddenDates, this.body.range, timeLabelsize);
  minimumStep -= this.body.util.toTime(0).valueOf();

  var step = new TimeStep(new Date(start), new Date(end), minimumStep, this.body.hiddenDates, this.options);
  step.setMoment(this.options.moment);
  if (this.options.format) {
    step.setFormat(this.options.format);
  }
  if (this.options.timeAxis) {
    step.setScale(this.options.timeAxis);
  }
  this.step = step;

  // Move all DOM elements to a "redundant" list, where they
  // can be picked for re-use, and clear the lists with lines and texts.
  // At the end of the function _repaintLabels, left over elements will be cleaned up
  var dom = this.dom;
  dom.redundant.lines = dom.lines;
  dom.redundant.majorTexts = dom.majorTexts;
  dom.redundant.minorTexts = dom.minorTexts;
  dom.lines = [];
  dom.majorTexts = [];
  dom.minorTexts = [];

  var current; // eslint-disable-line no-unused-vars
  var next;
  var x;
  var xNext;
  var isMajor;
  var nextIsMajor; // eslint-disable-line no-unused-vars
  var showMinorGrid;
  var width = 0,
      prevWidth;
  var line;
  var labelMinor;
  var xFirstMajorLabel = undefined;
  var count = 0;
  var MAX = 1000;
  var className;

  step.start();
  next = step.getCurrent();
  xNext = this.body.util.toScreen(next);
  while (step.hasNext() && count < MAX) {
    count++;

    isMajor = step.isMajor();
    className = step.getClassName();
    labelMinor = step.getLabelMinor();

    current = next;
    x = xNext;

    step.next();
    next = step.getCurrent();
    nextIsMajor = step.isMajor();
    xNext = this.body.util.toScreen(next);

    prevWidth = width;
    width = xNext - x;
    switch (step.scale) {
      case 'week':
        showMinorGrid = true;break;
      default:
        showMinorGrid = width >= prevWidth * 0.4;break; // prevent displaying of the 31th of the month on a scale of 5 days
    }

    if (this.options.showMinorLabels && showMinorGrid) {
      var label = this._repaintMinorText(x, labelMinor, orientation, className);
      label.style.width = width + 'px'; // set width to prevent overflow
    }

    if (isMajor && this.options.showMajorLabels) {
      if (x > 0) {
        if (xFirstMajorLabel == undefined) {
          xFirstMajorLabel = x;
        }
        label = this._repaintMajorText(x, step.getLabelMajor(), orientation, className);
      }
      line = this._repaintMajorLine(x, width, orientation, className);
    } else {
      // minor line
      if (showMinorGrid) {
        line = this._repaintMinorLine(x, width, orientation, className);
      } else {
        if (line) {
          // adjust the width of the previous grid
          line.style.width = parseInt(line.style.width) + width + 'px';
        }
      }
    }
  }

  if (count === MAX && !warnedForOverflow) {
    console.warn('Something is wrong with the Timeline scale. Limited drawing of grid lines to ' + MAX + ' lines.');
    warnedForOverflow = true;
  }

  // create a major label on the left when needed
  if (this.options.showMajorLabels) {
    var leftTime = this.body.util.toTime(0),
        leftText = step.getLabelMajor(leftTime),
        widthText = leftText.length * (this.props.majorCharWidth || 10) + 10; // upper bound estimation

    if (xFirstMajorLabel == undefined || widthText < xFirstMajorLabel) {
      this._repaintMajorText(0, leftText, orientation, className);
    }
  }

  // Cleanup leftover DOM elements from the redundant list
  util.forEach(this.dom.redundant, function (arr) {
    while (arr.length) {
      var elem = arr.pop();
      if (elem && elem.parentNode) {
        elem.parentNode.removeChild(elem);
      }
    }
  });
};

/**
 * Create a minor label for the axis at position x
 * @param {number} x
 * @param {string} text
 * @param {string} orientation   "top" or "bottom" (default)
 * @param {string} className
 * @return {Element} Returns the HTML element of the created label
 * @private
 */
TimeAxis.prototype._repaintMinorText = function (x, text, orientation, className) {
  // reuse redundant label
  var label = this.dom.redundant.minorTexts.shift();

  if (!label) {
    // create new label
    var content = document.createTextNode('');
    label = document.createElement('div');
    label.appendChild(content);
    this.dom.foreground.appendChild(label);
  }
  this.dom.minorTexts.push(label);
  label.innerHTML = text;

  label.style.top = orientation == 'top' ? this.props.majorLabelHeight + 'px' : '0';

  if (this.options.rtl) {
    label.style.left = "";
    label.style.right = x + 'px';
  } else {
    label.style.left = x + 'px';
  }
  label.className = 'vis-text vis-minor ' + className;
  //label.title = title;  // TODO: this is a heavy operation

  return label;
};

/**
 * Create a Major label for the axis at position x
 * @param {number} x
 * @param {string} text
 * @param {string} orientation   "top" or "bottom" (default)
 * @param {string} className
 * @return {Element} Returns the HTML element of the created label
 * @private
 */
TimeAxis.prototype._repaintMajorText = function (x, text, orientation, className) {
  // reuse redundant label
  var label = this.dom.redundant.majorTexts.shift();

  if (!label) {
    // create label
    var content = document.createElement('div');
    label = document.createElement('div');
    label.appendChild(content);
    this.dom.foreground.appendChild(label);
  }

  label.childNodes[0].innerHTML = text;
  label.className = 'vis-text vis-major ' + className;
  //label.title = title; // TODO: this is a heavy operation

  label.style.top = orientation == 'top' ? '0' : this.props.minorLabelHeight + 'px';
  if (this.options.rtl) {
    label.style.left = "";
    label.style.right = x + 'px';
  } else {
    label.style.left = x + 'px';
  }

  this.dom.majorTexts.push(label);
  return label;
};

/**
 * Create a minor line for the axis at position x
 * @param {number} x
 * @param {number} width
 * @param {string} orientation   "top" or "bottom" (default)
 * @param {string} className
 * @return {Element} Returns the created line
 * @private
 */
TimeAxis.prototype._repaintMinorLine = function (x, width, orientation, className) {
  // reuse redundant line
  var line = this.dom.redundant.lines.shift();
  if (!line) {
    // create vertical line
    line = document.createElement('div');
    this.dom.background.appendChild(line);
  }
  this.dom.lines.push(line);

  var props = this.props;
  if (orientation == 'top') {
    line.style.top = props.majorLabelHeight + 'px';
  } else {
    line.style.top = this.body.domProps.top.height + 'px';
  }
  line.style.height = props.minorLineHeight + 'px';
  if (this.options.rtl) {
    line.style.left = "";
    line.style.right = x - props.minorLineWidth / 2 + 'px';
    line.className = 'vis-grid vis-vertical-rtl vis-minor ' + className;
  } else {
    line.style.left = x - props.minorLineWidth / 2 + 'px';
    line.className = 'vis-grid vis-vertical vis-minor ' + className;
  }
  line.style.width = width + 'px';

  return line;
};

/**
 * Create a Major line for the axis at position x
 * @param {number} x
 * @param {number} width
 * @param {string} orientation   "top" or "bottom" (default)
 * @param {string} className
 * @return {Element} Returns the created line
 * @private
 */
TimeAxis.prototype._repaintMajorLine = function (x, width, orientation, className) {
  // reuse redundant line
  var line = this.dom.redundant.lines.shift();
  if (!line) {
    // create vertical line
    line = document.createElement('div');
    this.dom.background.appendChild(line);
  }
  this.dom.lines.push(line);

  var props = this.props;
  if (orientation == 'top') {
    line.style.top = '0';
  } else {
    line.style.top = this.body.domProps.top.height + 'px';
  }

  if (this.options.rtl) {
    line.style.left = "";
    line.style.right = x - props.majorLineWidth / 2 + 'px';
    line.className = 'vis-grid vis-vertical-rtl vis-major ' + className;
  } else {
    line.style.left = x - props.majorLineWidth / 2 + 'px';
    line.className = 'vis-grid vis-vertical vis-major ' + className;
  }

  line.style.height = props.majorLineHeight + 'px';
  line.style.width = width + 'px';

  return line;
};

/**
 * Determine the size of text on the axis (both major and minor axis).
 * The size is calculated only once and then cached in this.props.
 * @private
 */
TimeAxis.prototype._calculateCharSize = function () {
  // Note: We calculate char size with every redraw. Size may change, for
  // example when any of the timelines parents had display:none for example.

  // determine the char width and height on the minor axis
  if (!this.dom.measureCharMinor) {
    this.dom.measureCharMinor = document.createElement('DIV');
    this.dom.measureCharMinor.className = 'vis-text vis-minor vis-measure';
    this.dom.measureCharMinor.style.position = 'absolute';

    this.dom.measureCharMinor.appendChild(document.createTextNode('0'));
    this.dom.foreground.appendChild(this.dom.measureCharMinor);
  }
  this.props.minorCharHeight = this.dom.measureCharMinor.clientHeight;
  this.props.minorCharWidth = this.dom.measureCharMinor.clientWidth;

  // determine the char width and height on the major axis
  if (!this.dom.measureCharMajor) {
    this.dom.measureCharMajor = document.createElement('DIV');
    this.dom.measureCharMajor.className = 'vis-text vis-major vis-measure';
    this.dom.measureCharMajor.style.position = 'absolute';

    this.dom.measureCharMajor.appendChild(document.createTextNode('0'));
    this.dom.foreground.appendChild(this.dom.measureCharMajor);
  }
  this.props.majorCharHeight = this.dom.measureCharMajor.clientHeight;
  this.props.majorCharWidth = this.dom.measureCharMajor.clientWidth;
};

var warnedForOverflow = false;

module.exports = TimeAxis;

/***/ }),
/* 46 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var Hammer = __webpack_require__(10);
var util = __webpack_require__(2);
var Component = __webpack_require__(16);
var moment = __webpack_require__(9);
var locales = __webpack_require__(98);

/**
 * A custom time bar
 * @param {{range: Range, dom: Object}} body
 * @param {Object} [options]        Available parameters:
 *                                  {number | string} id
 *                                  {string} locales
 *                                  {string} locale
 * @constructor CustomTime
 * @extends Component
 */
function CustomTime(body, options) {
  this.body = body;

  // default options
  this.defaultOptions = {
    moment: moment,
    locales: locales,
    locale: 'en',
    id: undefined,
    title: undefined
  };
  this.options = util.extend({}, this.defaultOptions);

  if (options && options.time) {
    this.customTime = options.time;
  } else {
    this.customTime = new Date();
  }

  this.eventParams = {}; // stores state parameters while dragging the bar

  this.setOptions(options);

  // create the DOM
  this._create();
}

CustomTime.prototype = new Component();

/**
 * Set options for the component. Options will be merged in current options.
 * @param {Object} options  Available parameters:
 *                                  {number | string} id
 *                                  {string} locales
 *                                  {string} locale
 */
CustomTime.prototype.setOptions = function (options) {
  if (options) {
    // copy all options that we know
    util.selectiveExtend(['moment', 'locale', 'locales', 'id'], this.options, options);
  }
};

/**
 * Create the DOM for the custom time
 * @private
 */
CustomTime.prototype._create = function () {
  var bar = document.createElement('div');
  bar['custom-time'] = this;
  bar.className = 'vis-custom-time ' + (this.options.id || '');
  bar.style.position = 'absolute';
  bar.style.top = '0px';
  bar.style.height = '100%';
  this.bar = bar;

  var drag = document.createElement('div');
  drag.style.position = 'relative';
  drag.style.top = '0px';
  drag.style.left = '-10px';
  drag.style.height = '100%';
  drag.style.width = '20px';

  /**
   *
   * @param {WheelEvent} e
   */
  function onMouseWheel(e) {
    this.body.range._onMouseWheel(e);
  }

  if (drag.addEventListener) {
    // IE9, Chrome, Safari, Opera
    drag.addEventListener("mousewheel", onMouseWheel.bind(this), false);
    // Firefox
    drag.addEventListener("DOMMouseScroll", onMouseWheel.bind(this), false);
  } else {
    // IE 6/7/8
    drag.attachEvent("onmousewheel", onMouseWheel.bind(this));
  }

  bar.appendChild(drag);
  // attach event listeners
  this.hammer = new Hammer(drag);
  this.hammer.on('panstart', this._onDragStart.bind(this));
  this.hammer.on('panmove', this._onDrag.bind(this));
  this.hammer.on('panend', this._onDragEnd.bind(this));
  this.hammer.get('pan').set({ threshold: 5, direction: Hammer.DIRECTION_HORIZONTAL });
};

/**
 * Destroy the CustomTime bar
 */
CustomTime.prototype.destroy = function () {
  this.hide();

  this.hammer.destroy();
  this.hammer = null;

  this.body = null;
};

/**
 * Repaint the component
 * @return {boolean} Returns true if the component is resized
 */
CustomTime.prototype.redraw = function () {
  var parent = this.body.dom.backgroundVertical;
  if (this.bar.parentNode != parent) {
    // attach to the dom
    if (this.bar.parentNode) {
      this.bar.parentNode.removeChild(this.bar);
    }
    parent.appendChild(this.bar);
  }

  var x = this.body.util.toScreen(this.customTime);

  var locale = this.options.locales[this.options.locale];
  if (!locale) {
    if (!this.warned) {
      console.log('WARNING: options.locales[\'' + this.options.locale + '\'] not found. See http://visjs.org/docs/timeline/#Localization');
      this.warned = true;
    }
    locale = this.options.locales['en']; // fall back on english when not available
  }

  var title = this.options.title;
  // To hide the title completely use empty string ''.
  if (title === undefined) {
    title = locale.time + ': ' + this.options.moment(this.customTime).format('dddd, MMMM Do YYYY, H:mm:ss');
    title = title.charAt(0).toUpperCase() + title.substring(1);
  } else if (typeof title === "function") {
    title = title.call(this.customTime);
  }

  this.bar.style.left = x + 'px';
  this.bar.title = title;

  return false;
};

/**
 * Remove the CustomTime from the DOM
 */
CustomTime.prototype.hide = function () {
  // remove the line from the DOM
  if (this.bar.parentNode) {
    this.bar.parentNode.removeChild(this.bar);
  }
};

/**
 * Set custom time.
 * @param {Date | number | string} time
 */
CustomTime.prototype.setCustomTime = function (time) {
  this.customTime = util.convert(time, 'Date');
  this.redraw();
};

/**
 * Retrieve the current custom time.
 * @return {Date} customTime
 */
CustomTime.prototype.getCustomTime = function () {
  return new Date(this.customTime.valueOf());
};

/**
  * Set custom title.
  * @param {Date | number | string} title
  */
CustomTime.prototype.setCustomTitle = function (title) {
  this.options.title = title;
};

/**
 * Start moving horizontally
 * @param {Event} event
 * @private
 */
CustomTime.prototype._onDragStart = function (event) {
  this.eventParams.dragging = true;
  this.eventParams.customTime = this.customTime;

  event.stopPropagation();
};

/**
 * Perform moving operating.
 * @param {Event} event
 * @private
 */
CustomTime.prototype._onDrag = function (event) {
  if (!this.eventParams.dragging) return;

  var x = this.body.util.toScreen(this.eventParams.customTime) + event.deltaX;
  var time = this.body.util.toTime(x);

  this.setCustomTime(time);

  // fire a timechange event
  this.body.emitter.emit('timechange', {
    id: this.options.id,
    time: new Date(this.customTime.valueOf()),
    event: event
  });

  event.stopPropagation();
};

/**
 * Stop moving operating.
 * @param {Event} event
 * @private
 */
CustomTime.prototype._onDragEnd = function (event) {
  if (!this.eventParams.dragging) return;

  // fire a timechanged event
  this.body.emitter.emit('timechanged', {
    id: this.options.id,
    time: new Date(this.customTime.valueOf()),
    event: event
  });

  event.stopPropagation();
};

/**
 * Find a custom time from an event target:
 * searches for the attribute 'custom-time' in the event target's element tree
 * @param {Event} event
 * @return {CustomTime | null} customTime
 */
CustomTime.customTimeFromTarget = function (event) {
  var target = event.target;
  while (target) {
    if (target.hasOwnProperty('custom-time')) {
      return target['custom-time'];
    }
    target = target.parentNode;
  }

  return null;
};

module.exports = CustomTime;

/***/ }),
/* 47 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);

var Label = __webpack_require__(117)['default'];
var ComponentUtil = __webpack_require__(48)['default'];
var Box = __webpack_require__(193)['default'];
var Circle = __webpack_require__(200)['default'];
var CircularImage = __webpack_require__(201)['default'];
var Database = __webpack_require__(202)['default'];
var Diamond = __webpack_require__(203)['default'];
var Dot = __webpack_require__(204)['default'];
var Ellipse = __webpack_require__(205)['default'];
var Icon = __webpack_require__(206)['default'];
var Image = __webpack_require__(207)['default'];
var Square = __webpack_require__(208)['default'];
var Hexagon = __webpack_require__(209)['default'];
var Star = __webpack_require__(210)['default'];
var Text = __webpack_require__(211)['default'];
var Triangle = __webpack_require__(212)['default'];
var TriangleDown = __webpack_require__(213)['default'];

var _require = __webpack_require__(15),
    printStyle = _require.printStyle;

/**
 * A node. A node can be connected to other nodes via one or multiple edges.
 */


var Node = function () {
  /**
   *
   * @param {object} options An object containing options for the node. All
   *                            options are optional, except for the id.
   *                              {number} id     Id of the node. Required
   *                              {string} label  Text label for the node
   *                              {number} x      Horizontal position of the node
   *                              {number} y      Vertical position of the node
   *                              {string} shape  Node shape
   *                              {string} image  An image url
   *                              {string} title  A title text, can be HTML
   *                              {anytype} group A group name or number
   *
   * @param {Object} body               Shared state of current network instance
   * @param {Network.Images} imagelist  A list with images. Only needed when the node has an image
   * @param {Groups} grouplist          A list with groups. Needed for retrieving group options
   * @param {Object} globalOptions      Current global node options; these serve as defaults for the node instance
   * @param {Object} defaultOptions     Global default options for nodes; note that this is also the prototype
   *                                    for parameter `globalOptions`.
   */
  function Node(options, body, imagelist, grouplist, globalOptions, defaultOptions) {
    (0, _classCallCheck3['default'])(this, Node);

    this.options = util.bridgeObject(globalOptions);
    this.globalOptions = globalOptions;
    this.defaultOptions = defaultOptions;
    this.body = body;

    this.edges = []; // all edges connected to this node

    // set defaults for the options
    this.id = undefined;
    this.imagelist = imagelist;
    this.grouplist = grouplist;

    // state options
    this.x = undefined;
    this.y = undefined;
    this.baseSize = this.options.size;
    this.baseFontSize = this.options.font.size;
    this.predefinedPosition = false; // used to check if initial fit should just take the range or approximate
    this.selected = false;
    this.hover = false;

    this.labelModule = new Label(this.body, this.options, false /* Not edge label */);
    this.setOptions(options);
  }

  /**
   * Attach a edge to the node
   * @param {Edge} edge
   */


  (0, _createClass3['default'])(Node, [{
    key: 'attachEdge',
    value: function attachEdge(edge) {
      if (this.edges.indexOf(edge) === -1) {
        this.edges.push(edge);
      }
    }

    /**
     * Detach a edge from the node
     *
     * @param {Edge} edge
     */

  }, {
    key: 'detachEdge',
    value: function detachEdge(edge) {
      var index = this.edges.indexOf(edge);
      if (index != -1) {
        this.edges.splice(index, 1);
      }
    }

    /**
     * Set or overwrite options for the node
     *
     * @param {Object} options an object with options
     * @returns {null|boolean}
     */

  }, {
    key: 'setOptions',
    value: function setOptions(options) {
      var currentShape = this.options.shape;
      if (!options) {
        return; // Note that the return value will be 'undefined'! This is OK.
      }

      // basic options
      if (options.id !== undefined) {
        this.id = options.id;
      }

      if (this.id === undefined) {
        throw new Error("Node must have an id");
      }

      Node.checkMass(options, this.id);

      // set these options locally
      // clear x and y positions
      if (options.x !== undefined) {
        if (options.x === null) {
          this.x = undefined;this.predefinedPosition = false;
        } else {
          this.x = parseInt(options.x);this.predefinedPosition = true;
        }
      }
      if (options.y !== undefined) {
        if (options.y === null) {
          this.y = undefined;this.predefinedPosition = false;
        } else {
          this.y = parseInt(options.y);this.predefinedPosition = true;
        }
      }
      if (options.size !== undefined) {
        this.baseSize = options.size;
      }
      if (options.value !== undefined) {
        options.value = parseFloat(options.value);
      }

      // this transforms all shorthands into fully defined options
      Node.parseOptions(this.options, options, true, this.globalOptions, this.grouplist);

      var pile = [options, this.options, this.defaultOptions];
      this.chooser = ComponentUtil.choosify('node', pile);

      this._load_images();
      this.updateLabelModule(options);
      this.updateShape(currentShape);

      return options.hidden !== undefined || options.physics !== undefined;
    }

    /**
     * Load the images from the options, for the nodes that need them.
     *
     * TODO: The imageObj members should be moved to CircularImageBase.
     *       It's the only place where they are required.
     *
     * @private
     */

  }, {
    key: '_load_images',
    value: function _load_images() {
      // Don't bother loading for nodes without images
      if (this.options.shape !== 'circularImage' && this.options.shape !== 'image') {
        return;
      }

      if (this.options.image === undefined) {
        throw new Error("Option image must be defined for node type '" + this.options.shape + "'");
      }

      if (this.imagelist === undefined) {
        throw new Error("Internal Error: No images provided");
      }

      if (typeof this.options.image === 'string') {
        this.imageObj = this.imagelist.load(this.options.image, this.options.brokenImage, this.id);
      } else {
        if (this.options.image.unselected === undefined) {
          throw new Error("No unselected image provided");
        }

        this.imageObj = this.imagelist.load(this.options.image.unselected, this.options.brokenImage, this.id);

        if (this.options.image.selected !== undefined) {
          this.imageObjAlt = this.imagelist.load(this.options.image.selected, this.options.brokenImage, this.id);
        } else {
          this.imageObjAlt = undefined;
        }
      }
    }

    /**
     * Copy group option values into the node options.
     *
     * The group options override the global node options, so the copy of group options
     *  must happen *after* the global node options have been set.
     *
     * This method must also be called also if the global node options have changed and the group options did not.
     *
     * @param {Object} parentOptions
     * @param {Object} newOptions  new values for the options, currently only passed in for check
     * @param {Object} groupList
     */

  }, {
    key: 'getFormattingValues',


    /**
     *
     * @returns {{color: *, borderWidth: *, borderColor: *, size: *, borderDashes: (boolean|Array|allOptions.nodes.shapeProperties.borderDashes|{boolean, array}), borderRadius: (number|allOptions.nodes.shapeProperties.borderRadius|{number}|Array), shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *}}
     */
    value: function getFormattingValues() {
      var values = {
        color: this.options.color.background,
        borderWidth: this.options.borderWidth,
        borderColor: this.options.color.border,
        size: this.options.size,
        borderDashes: this.options.shapeProperties.borderDashes,
        borderRadius: this.options.shapeProperties.borderRadius,
        shadow: this.options.shadow.enabled,
        shadowColor: this.options.shadow.color,
        shadowSize: this.options.shadow.size,
        shadowX: this.options.shadow.x,
        shadowY: this.options.shadow.y
      };
      if (this.selected || this.hover) {
        if (this.chooser === true) {
          if (this.selected) {
            values.borderWidth *= 2;
            values.color = this.options.color.highlight.background;
            values.borderColor = this.options.color.highlight.border;
            values.shadow = this.options.shadow.enabled;
          } else if (this.hover) {
            values.color = this.options.color.hover.background;
            values.borderColor = this.options.color.hover.border;
            values.shadow = this.options.shadow.enabled;
          }
        } else if (typeof this.chooser === 'function') {
          this.chooser(values, this.options.id, this.selected, this.hover);
          if (values.shadow === false) {
            if (values.shadowColor !== this.options.shadow.color || values.shadowSize !== this.options.shadow.size || values.shadowX !== this.options.shadow.x || values.shadowY !== this.options.shadow.y) {
              values.shadow = true;
            }
          }
        }
      } else {
        values.shadow = this.options.shadow.enabled;
      }
      return values;
    }

    /**
     *
     * @param {Object} options
     */

  }, {
    key: 'updateLabelModule',
    value: function updateLabelModule(options) {
      if (this.options.label === undefined || this.options.label === null) {
        this.options.label = '';
      }

      Node.updateGroupOptions(this.options, options, this.grouplist);

      //
      // Note:The prototype chain for this.options is:
      //
      // this.options ->    NodesHandler.options    -> NodesHandler.defaultOptions
      //                 (also: this.globalOptions)
      //
      // Note that the prototypes are mentioned explicitly in the pile list below;
      // WE DON'T WANT THE ORDER OF THE PROTOTYPES!!!! At least, not for font handling of labels.
      // This is a good indication that the prototype usage of options is deficient.
      //
      var currentGroup = this.grouplist.get(this.options.group, false);
      var pile = [options, // new options
      this.options, // current node options, see comment above for prototype
      currentGroup, // group options, if any
      this.globalOptions, // Currently set global node options
      this.defaultOptions // Default global node options
      ];
      this.labelModule.update(this.options, pile);

      if (this.labelModule.baseSize !== undefined) {
        this.baseFontSize = this.labelModule.baseSize;
      }
    }

    /**
     *
     * @param {string} currentShape
     */

  }, {
    key: 'updateShape',
    value: function updateShape(currentShape) {
      if (currentShape === this.options.shape && this.shape) {
        this.shape.setOptions(this.options, this.imageObj, this.imageObjAlt);
      } else {
        // choose draw method depending on the shape
        switch (this.options.shape) {
          case 'box':
            this.shape = new Box(this.options, this.body, this.labelModule);
            break;
          case 'circle':
            this.shape = new Circle(this.options, this.body, this.labelModule);
            break;
          case 'circularImage':
            this.shape = new CircularImage(this.options, this.body, this.labelModule, this.imageObj, this.imageObjAlt);
            break;
          case 'database':
            this.shape = new Database(this.options, this.body, this.labelModule);
            break;
          case 'diamond':
            this.shape = new Diamond(this.options, this.body, this.labelModule);
            break;
          case 'dot':
            this.shape = new Dot(this.options, this.body, this.labelModule);
            break;
          case 'ellipse':
            this.shape = new Ellipse(this.options, this.body, this.labelModule);
            break;
          case 'icon':
            this.shape = new Icon(this.options, this.body, this.labelModule);
            break;
          case 'image':
            this.shape = new Image(this.options, this.body, this.labelModule, this.imageObj, this.imageObjAlt);
            break;
          case 'square':
            this.shape = new Square(this.options, this.body, this.labelModule);
            break;
          case 'hexagon':
            this.shape = new Hexagon(this.options, this.body, this.labelModule);
            break;
          case 'star':
            this.shape = new Star(this.options, this.body, this.labelModule);
            break;
          case 'text':
            this.shape = new Text(this.options, this.body, this.labelModule);
            break;
          case 'triangle':
            this.shape = new Triangle(this.options, this.body, this.labelModule);
            break;
          case 'triangleDown':
            this.shape = new TriangleDown(this.options, this.body, this.labelModule);
            break;
          default:
            this.shape = new Ellipse(this.options, this.body, this.labelModule);
            break;
        }
      }
      this.needsRefresh();
    }

    /**
     * select this node
     */

  }, {
    key: 'select',
    value: function select() {
      this.selected = true;
      this.needsRefresh();
    }

    /**
     * unselect this node
     */

  }, {
    key: 'unselect',
    value: function unselect() {
      this.selected = false;
      this.needsRefresh();
    }

    /**
     * Reset the calculated size of the node, forces it to recalculate its size
     */

  }, {
    key: 'needsRefresh',
    value: function needsRefresh() {
      this.shape.refreshNeeded = true;
    }

    /**
     * get the title of this node.
     * @return {string} title    The title of the node, or undefined when no title
     *                           has been set.
     */

  }, {
    key: 'getTitle',
    value: function getTitle() {
      return this.options.title;
    }

    /**
     * Calculate the distance to the border of the Node
     * @param {CanvasRenderingContext2D}   ctx
     * @param {number} angle        Angle in radians
     * @returns {number} distance   Distance to the border in pixels
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      return this.shape.distanceToBorder(ctx, angle);
    }

    /**
     * Check if this node has a fixed x and y position
     * @return {boolean}      true if fixed, false if not
     */

  }, {
    key: 'isFixed',
    value: function isFixed() {
      return this.options.fixed.x && this.options.fixed.y;
    }

    /**
     * check if this node is selecte
     * @return {boolean} selected   True if node is selected, else false
     */

  }, {
    key: 'isSelected',
    value: function isSelected() {
      return this.selected;
    }

    /**
     * Retrieve the value of the node. Can be undefined
     * @return {number} value
     */

  }, {
    key: 'getValue',
    value: function getValue() {
      return this.options.value;
    }

    /**
     * Get the current dimensions of the label
     *
     * @return {rect}
     */

  }, {
    key: 'getLabelSize',
    value: function getLabelSize() {
      return this.labelModule.size();
    }

    /**
     * Adjust the value range of the node. The node will adjust it's size
     * based on its value.
     * @param {number} min
     * @param {number} max
     * @param {number} total
     */

  }, {
    key: 'setValueRange',
    value: function setValueRange(min, max, total) {
      if (this.options.value !== undefined) {
        var scale = this.options.scaling.customScalingFunction(min, max, total, this.options.value);
        var sizeDiff = this.options.scaling.max - this.options.scaling.min;
        if (this.options.scaling.label.enabled === true) {
          var fontDiff = this.options.scaling.label.max - this.options.scaling.label.min;
          this.options.font.size = this.options.scaling.label.min + scale * fontDiff;
        }
        this.options.size = this.options.scaling.min + scale * sizeDiff;
      } else {
        this.options.size = this.baseSize;
        this.options.font.size = this.baseFontSize;
      }

      this.updateLabelModule();
    }

    /**
     * Draw this node in the given canvas
     * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d");
     * @param {CanvasRenderingContext2D}   ctx
     */

  }, {
    key: 'draw',
    value: function draw(ctx) {
      var values = this.getFormattingValues();
      this.shape.draw(ctx, this.x, this.y, this.selected, this.hover, values);
    }

    /**
     * Update the bounding box of the shape
     * @param {CanvasRenderingContext2D}   ctx
     */

  }, {
    key: 'updateBoundingBox',
    value: function updateBoundingBox(ctx) {
      this.shape.updateBoundingBox(this.x, this.y, ctx);
    }

    /**
     * Recalculate the size of this node in the given canvas
     * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d");
     * @param {CanvasRenderingContext2D}   ctx
     */

  }, {
    key: 'resize',
    value: function resize(ctx) {
      var values = this.getFormattingValues();
      this.shape.resize(ctx, this.selected, this.hover, values);
    }

    /**
     * Determine all visual elements of this node instance, in which the given
     * point falls within the bounding shape.
     *
     * @param {point} point
     * @returns {Array.<nodeClickItem|nodeLabelClickItem>} list with the items which are on the point
     */

  }, {
    key: 'getItemsOnPoint',
    value: function getItemsOnPoint(point) {
      var ret = [];

      if (this.labelModule.visible()) {
        if (ComponentUtil.pointInRect(this.labelModule.getSize(), point)) {
          ret.push({ nodeId: this.id, labelId: 0 });
        }
      }

      if (ComponentUtil.pointInRect(this.shape.boundingBox, point)) {
        ret.push({ nodeId: this.id });
      }

      return ret;
    }

    /**
     * Check if this object is overlapping with the provided object
     * @param {Object} obj   an object with parameters left, top, right, bottom
     * @return {boolean}     True if location is located on node
     */

  }, {
    key: 'isOverlappingWith',
    value: function isOverlappingWith(obj) {
      return this.shape.left < obj.right && this.shape.left + this.shape.width > obj.left && this.shape.top < obj.bottom && this.shape.top + this.shape.height > obj.top;
    }

    /**
     * Check if this object is overlapping with the provided object
     * @param {Object} obj   an object with parameters left, top, right, bottom
     * @return {boolean}     True if location is located on node
     */

  }, {
    key: 'isBoundingBoxOverlappingWith',
    value: function isBoundingBoxOverlappingWith(obj) {
      return this.shape.boundingBox.left < obj.right && this.shape.boundingBox.right > obj.left && this.shape.boundingBox.top < obj.bottom && this.shape.boundingBox.bottom > obj.top;
    }

    /**
    * Check valid values for mass
    *
    * The mass may not be negative or zero. If it is, reset to 1
    *
    * @param {object} options
    * @param {Node.id} id
     * @static
    */

  }], [{
    key: 'updateGroupOptions',
    value: function updateGroupOptions(parentOptions, newOptions, groupList) {
      if (groupList === undefined) return; // No groups, nothing to do

      var group = parentOptions.group;

      // paranoia: the selected group is already merged into node options, check.
      if (newOptions !== undefined && newOptions.group !== undefined && group !== newOptions.group) {
        throw new Error("updateGroupOptions: group values in options don't match.");
      }

      var hasGroup = typeof group === 'number' || typeof group === 'string' && group != '';
      if (!hasGroup) return; // current node has no group, no need to merge

      var groupObj = groupList.get(group);

      // Skip merging of group font options into parent; these are required to be distinct for labels
      // TODO: It might not be a good idea either to merge the rest of the options, investigate this. 
      util.selectiveNotDeepExtend(['font'], parentOptions, groupObj);

      // the color object needs to be completely defined.
      // Since groups can partially overwrite the colors, we parse it again, just in case.
      parentOptions.color = util.parseColor(parentOptions.color);
    }

    /**
     * This process all possible shorthands in the new options and makes sure that the parentOptions are fully defined.
     * Static so it can also be used by the handler.
     *
     * @param {Object} parentOptions
     * @param {Object} newOptions
     * @param {boolean} [allowDeletion=false]
     * @param {Object} [globalOptions={}]
     * @param {Object} [groupList]
     * @static
     */

  }, {
    key: 'parseOptions',
    value: function parseOptions(parentOptions, newOptions) {
      var allowDeletion = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
      var globalOptions = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
      var groupList = arguments[4];


      var fields = ['color', 'fixed', 'shadow'];
      util.selectiveNotDeepExtend(fields, parentOptions, newOptions, allowDeletion);

      Node.checkMass(newOptions);

      // merge the shadow options into the parent.
      util.mergeOptions(parentOptions, newOptions, 'shadow', globalOptions);

      // individual shape newOptions
      if (newOptions.color !== undefined && newOptions.color !== null) {
        var parsedColor = util.parseColor(newOptions.color);
        util.fillIfDefined(parentOptions.color, parsedColor);
      } else if (allowDeletion === true && newOptions.color === null) {
        parentOptions.color = util.bridgeObject(globalOptions.color); // set the object back to the global options
      }

      // handle the fixed options
      if (newOptions.fixed !== undefined && newOptions.fixed !== null) {
        if (typeof newOptions.fixed === 'boolean') {
          parentOptions.fixed.x = newOptions.fixed;
          parentOptions.fixed.y = newOptions.fixed;
        } else {
          if (newOptions.fixed.x !== undefined && typeof newOptions.fixed.x === 'boolean') {
            parentOptions.fixed.x = newOptions.fixed.x;
          }
          if (newOptions.fixed.y !== undefined && typeof newOptions.fixed.y === 'boolean') {
            parentOptions.fixed.y = newOptions.fixed.y;
          }
        }
      }

      if (allowDeletion === true && newOptions.font === null) {
        parentOptions.font = util.bridgeObject(globalOptions.font); // set the object back to the global options
      }

      Node.updateGroupOptions(parentOptions, newOptions, groupList);

      // handle the scaling options, specifically the label part
      if (newOptions.scaling !== undefined) {
        util.mergeOptions(parentOptions.scaling, newOptions.scaling, 'label', globalOptions.scaling);
      }
    }
  }, {
    key: 'checkMass',
    value: function checkMass(options, id) {
      if (options.mass !== undefined && options.mass <= 0) {
        var strId = '';
        if (id !== undefined) {
          strId = ' in node id: ' + id;
        }
        console.log('%cNegative or zero mass disallowed' + strId + ', setting mass to 1.', printStyle);
        options.mass = 1;
      }
    }
  }]);
  return Node;
}();

exports['default'] = Node;

/***/ }),
/* 48 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Definitions for param's in jsdoc.
 * These are more or less global within Network. Putting them here until I can figure out
 * where to really put them
 * 
 * @typedef {string|number} Id
 * @typedef {Id} NodeId
 * @typedef {Id} EdgeId
 * @typedef {Id} LabelId
 *
 * @typedef {{x: number, y: number}} point
 * @typedef {{left: number, top: number, width: number, height: number}} rect
 * @typedef {{x: number, y:number, angle: number}} rotationPoint
 *   - point to rotate around and the angle in radians to rotate. angle == 0 means no rotation
 * @typedef {{nodeId:NodeId}} nodeClickItem
 * @typedef {{nodeId:NodeId, labelId:LabelId}} nodeLabelClickItem
 * @typedef {{edgeId:EdgeId}} edgeClickItem
 * @typedef {{edgeId:EdgeId, labelId:LabelId}} edgeLabelClickItem
 */

var util = __webpack_require__(2);

/**
 * Helper functions for components
 * @class
 */

var ComponentUtil = function () {
  function ComponentUtil() {
    (0, _classCallCheck3['default'])(this, ComponentUtil);
  }

  (0, _createClass3['default'])(ComponentUtil, null, [{
    key: 'choosify',

    /**
     * Determine values to use for (sub)options of 'chosen'.
     *
     * This option is either a boolean or an object whose values should be examined further.
     * The relevant structures are:
     *
     * - chosen: <boolean value>
     * - chosen: { subOption: <boolean or function> }
     *
     * Where subOption is 'node', 'edge' or 'label'.
     *
     * The intention of this method appears to be to set a specific priority to the options;
     * Since most properties are either bridged or merged into the local options objects, there
     * is not much point in handling them separately.
     * TODO: examine if 'most' in previous sentence can be replaced with 'all'. In that case, we
     *       should be able to get rid of this method.
     *
     * @param {string}  subOption  option within object 'chosen' to consider; either 'node', 'edge' or 'label'
     * @param {Object}  pile       array of options objects to consider
     * 
     * @return {boolean|function}  value for passed subOption of 'chosen' to use
     */
    value: function choosify(subOption, pile) {
      // allowed values for subOption
      var allowed = ['node', 'edge', 'label'];
      var value = true;

      var chosen = util.topMost(pile, 'chosen');
      if (typeof chosen === 'boolean') {
        value = chosen;
      } else if ((typeof chosen === 'undefined' ? 'undefined' : (0, _typeof3['default'])(chosen)) === 'object') {
        if (allowed.indexOf(subOption) === -1) {
          throw new Error('choosify: subOption \'' + subOption + '\' should be one of ' + "'" + allowed.join("', '") + "'");
        }

        var chosenEdge = util.topMost(pile, ['chosen', subOption]);
        if (typeof chosenEdge === 'boolean' || typeof chosenEdge === 'function') {
          value = chosenEdge;
        }
      }

      return value;
    }

    /**
     * Check if the point falls within the given rectangle.
     *
     * @param {rect} rect
     * @param {point} point
     * @param {rotationPoint} [rotationPoint] if specified, the rotation that applies to the rectangle.
     * @returns {boolean}  true if point within rectangle, false otherwise
     * @static
     */

  }, {
    key: 'pointInRect',
    value: function pointInRect(rect, point, rotationPoint) {
      if (rect.width <= 0 || rect.height <= 0) {
        return false; // early out
      }

      if (rotationPoint !== undefined) {
        // Rotate the point the same amount as the rectangle
        var tmp = {
          x: point.x - rotationPoint.x,
          y: point.y - rotationPoint.y
        };

        if (rotationPoint.angle !== 0) {
          // In order to get the coordinates the same, you need to 
          // rotate in the reverse direction
          var angle = -rotationPoint.angle;

          var tmp2 = {
            x: Math.cos(angle) * tmp.x - Math.sin(angle) * tmp.y,
            y: Math.sin(angle) * tmp.x + Math.cos(angle) * tmp.y
          };
          point = tmp2;
        } else {
          point = tmp;
        }

        // Note that if a rotation is specified, the rectangle coordinates
        // are **not* the full canvas coordinates. They are relative to the
        // rotationPoint. Hence, the point coordinates need not be translated
        // back in this case.
      }

      var right = rect.x + rect.width;
      var bottom = rect.y + rect.width;

      return rect.left < point.x && right > point.x && rect.top < point.y && bottom > point.y;
    }

    /**
     * Check if given value is acceptable as a label text.
     *
     * @param {*} text value to check; can be anything at this point
     * @returns {boolean} true if valid label value, false otherwise
     */

  }, {
    key: 'isValidLabel',
    value: function isValidLabel(text) {
      // Note that this is quite strict: types that *might* be converted to string are disallowed
      return typeof text === 'string' && text !== '';
    }
  }]);
  return ComponentUtil;
}();

exports['default'] = ComponentUtil;

/***/ }),
/* 49 */
/***/ (function(module, exports, __webpack_require__) {

__webpack_require__(125);
var global = __webpack_require__(18);
var hide = __webpack_require__(26);
var Iterators = __webpack_require__(31);
var TO_STRING_TAG = __webpack_require__(13)('toStringTag');

var DOMIterables = ('CSSRuleList,CSSStyleDeclaration,CSSValueList,ClientRectList,DOMRectList,DOMStringList,' +
  'DOMTokenList,DataTransferItemList,FileList,HTMLAllCollection,HTMLCollection,HTMLFormElement,HTMLSelectElement,' +
  'MediaList,MimeTypeArray,NamedNodeMap,NodeList,PaintRequestList,Plugin,PluginArray,SVGLengthList,SVGNumberList,' +
  'SVGPathSegList,SVGPointList,SVGStringList,SVGTransformList,SourceBufferList,StyleSheetList,TextTrackCueList,' +
  'TextTrackList,TouchList').split(',');

for (var i = 0; i < DOMIterables.length; i++) {
  var NAME = DOMIterables[i];
  var Collection = global[NAME];
  var proto = Collection && Collection.prototype;
  if (proto && !proto[TO_STRING_TAG]) hide(proto, TO_STRING_TAG, NAME);
  Iterators[NAME] = Iterators.Array;
}


/***/ }),
/* 50 */
/***/ (function(module, exports) {

var toString = {}.toString;

module.exports = function (it) {
  return toString.call(it).slice(8, -1);
};


/***/ }),
/* 51 */
/***/ (function(module, exports) {

// 7.2.1 RequireObjectCoercible(argument)
module.exports = function (it) {
  if (it == undefined) throw TypeError("Can't call method on  " + it);
  return it;
};


/***/ }),
/* 52 */
/***/ (function(module, exports) {

module.exports = true;


/***/ }),
/* 53 */
/***/ (function(module, exports, __webpack_require__) {

// 7.1.1 ToPrimitive(input [, PreferredType])
var isObject = __webpack_require__(32);
// instead of the ES6 spec version, we didn't implement @@toPrimitive case
// and the second argument - flag - preferred type is a string
module.exports = function (it, S) {
  if (!isObject(it)) return it;
  var fn, val;
  if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
  if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;
  if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
  throw TypeError("Can't convert object to primitive value");
};


/***/ }),
/* 54 */
/***/ (function(module, exports, __webpack_require__) {

// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
var anObject = __webpack_require__(27);
var dPs = __webpack_require__(130);
var enumBugKeys = __webpack_require__(58);
var IE_PROTO = __webpack_require__(56)('IE_PROTO');
var Empty = function () { /* empty */ };
var PROTOTYPE = 'prototype';

// Create object with fake `null` prototype: use iframe Object with cleared prototype
var createDict = function () {
  // Thrash, waste and sodomy: IE GC bug
  var iframe = __webpack_require__(82)('iframe');
  var i = enumBugKeys.length;
  var lt = '<';
  var gt = '>';
  var iframeDocument;
  iframe.style.display = 'none';
  __webpack_require__(134).appendChild(iframe);
  iframe.src = 'javascript:'; // eslint-disable-line no-script-url
  // createDict = iframe.contentWindow.Object;
  // html.removeChild(iframe);
  iframeDocument = iframe.contentWindow.document;
  iframeDocument.open();
  iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
  iframeDocument.close();
  createDict = iframeDocument.F;
  while (i--) delete createDict[PROTOTYPE][enumBugKeys[i]];
  return createDict();
};

module.exports = Object.create || function create(O, Properties) {
  var result;
  if (O !== null) {
    Empty[PROTOTYPE] = anObject(O);
    result = new Empty();
    Empty[PROTOTYPE] = null;
    // add "__proto__" for Object.getPrototypeOf polyfill
    result[IE_PROTO] = O;
  } else result = createDict();
  return Properties === undefined ? result : dPs(result, Properties);
};


/***/ }),
/* 55 */
/***/ (function(module, exports) {

// 7.1.4 ToInteger
var ceil = Math.ceil;
var floor = Math.floor;
module.exports = function (it) {
  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
};


/***/ }),
/* 56 */
/***/ (function(module, exports, __webpack_require__) {

var shared = __webpack_require__(57)('keys');
var uid = __webpack_require__(40);
module.exports = function (key) {
  return shared[key] || (shared[key] = uid(key));
};


/***/ }),
/* 57 */
/***/ (function(module, exports, __webpack_require__) {

var global = __webpack_require__(18);
var SHARED = '__core-js_shared__';
var store = global[SHARED] || (global[SHARED] = {});
module.exports = function (key) {
  return store[key] || (store[key] = {});
};


/***/ }),
/* 58 */
/***/ (function(module, exports) {

// IE 8- don't enum bug keys
module.exports = (
  'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'
).split(',');


/***/ }),
/* 59 */
/***/ (function(module, exports, __webpack_require__) {

var def = __webpack_require__(20).f;
var has = __webpack_require__(22);
var TAG = __webpack_require__(13)('toStringTag');

module.exports = function (it, tag, stat) {
  if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, { configurable: true, value: tag });
};


/***/ }),
/* 60 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

var $at = __webpack_require__(135)(true);

// 21.1.3.27 String.prototype[@@iterator]()
__webpack_require__(79)(String, 'String', function (iterated) {
  this._t = String(iterated); // target
  this._i = 0;                // next index
// 21.1.5.2.1 %StringIteratorPrototype%.next()
}, function () {
  var O = this._t;
  var index = this._i;
  var point;
  if (index >= O.length) return { value: undefined, done: true };
  point = $at(O, index);
  this._i += point.length;
  return { value: point, done: false };
});


/***/ }),
/* 61 */
/***/ (function(module, exports, __webpack_require__) {

exports.f = __webpack_require__(13);


/***/ }),
/* 62 */
/***/ (function(module, exports, __webpack_require__) {

var global = __webpack_require__(18);
var core = __webpack_require__(7);
var LIBRARY = __webpack_require__(52);
var wksExt = __webpack_require__(61);
var defineProperty = __webpack_require__(20).f;
module.exports = function (name) {
  var $Symbol = core.Symbol || (core.Symbol = LIBRARY ? {} : global.Symbol || {});
  if (name.charAt(0) != '_' && !(name in $Symbol)) defineProperty($Symbol, name, { value: wksExt.f(name) });
};


/***/ }),
/* 63 */
/***/ (function(module, exports) {

exports.f = Object.getOwnPropertySymbols;


/***/ }),
/* 64 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _keys = __webpack_require__(8);

var _keys2 = _interopRequireDefault(_keys);

var _stringify = __webpack_require__(19);

var _stringify2 = _interopRequireDefault(_stringify);

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var moment = __webpack_require__(9);
var Component = __webpack_require__(16);
var DateUtil = __webpack_require__(36);

/**
 * A Range controls a numeric range with a start and end value.
 * The Range adjusts the range based on mouse events or programmatic changes,
 * and triggers events when the range is changing or has been changed.
 * @param {{dom: Object, domProps: Object, emitter: Emitter}} body
 * @param {Object} [options]    See description at Range.setOptions
 * @constructor Range
 * @extends Component
 */
function Range(body, options) {
  var now = moment().hours(0).minutes(0).seconds(0).milliseconds(0);
  var start = now.clone().add(-3, 'days').valueOf();
  var end = now.clone().add(3, 'days').valueOf();
  this.millisecondsPerPixelCache = undefined;

  if (options === undefined) {
    this.start = start;
    this.end = end;
  } else {
    this.start = options.start || start;
    this.end = options.end || end;
  }

  this.rolling = false;

  this.body = body;
  this.deltaDifference = 0;
  this.scaleOffset = 0;
  this.startToFront = false;
  this.endToFront = true;

  // default options
  this.defaultOptions = {
    rtl: false,
    start: null,
    end: null,
    moment: moment,
    direction: 'horizontal', // 'horizontal' or 'vertical'
    moveable: true,
    zoomable: true,
    min: null,
    max: null,
    zoomMin: 10, // milliseconds
    zoomMax: 1000 * 60 * 60 * 24 * 365 * 10000, // milliseconds
    rollingMode: {
      follow: false,
      offset: 0.5
    }
  };
  this.options = util.extend({}, this.defaultOptions);
  this.props = {
    touch: {}
  };
  this.animationTimer = null;

  // drag listeners for dragging
  this.body.emitter.on('panstart', this._onDragStart.bind(this));
  this.body.emitter.on('panmove', this._onDrag.bind(this));
  this.body.emitter.on('panend', this._onDragEnd.bind(this));

  // mouse wheel for zooming
  this.body.emitter.on('mousewheel', this._onMouseWheel.bind(this));

  // pinch to zoom
  this.body.emitter.on('touch', this._onTouch.bind(this));
  this.body.emitter.on('pinch', this._onPinch.bind(this));

  // on click of rolling mode button
  this.body.dom.rollingModeBtn.addEventListener('click', this.startRolling.bind(this));

  this.setOptions(options);
}

Range.prototype = new Component();

/**
 * Set options for the range controller
 * @param {Object} options      Available options:
 *                              {number | Date | String} start  Start date for the range
 *                              {number | Date | String} end    End date for the range
 *                              {number} min    Minimum value for start
 *                              {number} max    Maximum value for end
 *                              {number} zoomMin    Set a minimum value for
 *                                                  (end - start).
 *                              {number} zoomMax    Set a maximum value for
 *                                                  (end - start).
 *                              {boolean} moveable Enable moving of the range
 *                                                 by dragging. True by default
 *                              {boolean} zoomable Enable zooming of the range
 *                                                 by pinching/scrolling. True by default
 */
Range.prototype.setOptions = function (options) {
  if (options) {
    // copy the options that we know
    var fields = ['animation', 'direction', 'min', 'max', 'zoomMin', 'zoomMax', 'moveable', 'zoomable', 'moment', 'activate', 'hiddenDates', 'zoomKey', 'rtl', 'showCurrentTime', 'rollingMode', 'horizontalScroll'];
    util.selectiveExtend(fields, this.options, options);

    if (options.rollingMode && options.rollingMode.follow) {
      this.startRolling();
    }
    if ('start' in options || 'end' in options) {
      // apply a new range. both start and end are optional
      this.setRange(options.start, options.end);
    }
  }
};

/**
 * Test whether direction has a valid value
 * @param {string} direction    'horizontal' or 'vertical'
 */
function validateDirection(direction) {
  if (direction != 'horizontal' && direction != 'vertical') {
    throw new TypeError('Unknown direction "' + direction + '". ' + 'Choose "horizontal" or "vertical".');
  }
}

/**
 * Start auto refreshing the current time bar
 */
Range.prototype.startRolling = function () {
  var me = this;

  /**
   *  Updates the current time.
   */
  function update() {
    me.stopRolling();
    me.rolling = true;

    var interval = me.end - me.start;
    var t = util.convert(new Date(), 'Date').valueOf();

    var start = t - interval * me.options.rollingMode.offset;
    var end = t + interval * (1 - me.options.rollingMode.offset);

    var options = {
      animation: false
    };
    me.setRange(start, end, options);

    // determine interval to refresh
    var scale = me.conversion(me.body.domProps.center.width).scale;
    interval = 1 / scale / 10;
    if (interval < 30) interval = 30;
    if (interval > 1000) interval = 1000;

    me.body.dom.rollingModeBtn.style.visibility = "hidden";
    // start a renderTimer to adjust for the new time
    me.currentTimeTimer = setTimeout(update, interval);
  }

  update();
};

/**
 * Stop auto refreshing the current time bar
 */
Range.prototype.stopRolling = function () {
  if (this.currentTimeTimer !== undefined) {
    clearTimeout(this.currentTimeTimer);
    this.rolling = false;
    this.body.dom.rollingModeBtn.style.visibility = "visible";
  }
};

/**
 * Set a new start and end range
 * @param {Date | number | string} [start]
 * @param {Date | number | string} [end]
 * @param {Object} options      Available options:
 *                              {boolean | {duration: number, easingFunction: string}} [animation=false]
 *                                    If true, the range is animated
 *                                    smoothly to the new window. An object can be
 *                                    provided to specify duration and easing function.
 *                                    Default duration is 500 ms, and default easing
 *                                    function is 'easeInOutQuad'.
 *                              {boolean} [byUser=false]
 *                              {Event}  event  Mouse event
 * @param {Function} callback     a callback function to be executed at the end of this function  
 * @param {Function} frameCallback    a callback function executed each frame of the range animation.
 *                                    The callback will be passed three parameters:
 *                                    {number} easeCoefficient    an easing coefficent
 *                                    {boolean} willDraw          If true the caller will redraw after the callback completes
 *                                    {boolean} done              If true then animation is ending after the current frame
 */

Range.prototype.setRange = function (start, end, options, callback, frameCallback) {
  if (!options) {
    options = {};
  }
  if (options.byUser !== true) {
    options.byUser = false;
  }
  var me = this;
  var finalStart = start != undefined ? util.convert(start, 'Date').valueOf() : null;
  var finalEnd = end != undefined ? util.convert(end, 'Date').valueOf() : null;
  this._cancelAnimation();
  this.millisecondsPerPixelCache = undefined;

  if (options.animation) {
    // true or an Object
    var initStart = this.start;
    var initEnd = this.end;
    var duration = (0, _typeof3['default'])(options.animation) === 'object' && 'duration' in options.animation ? options.animation.duration : 500;
    var easingName = (0, _typeof3['default'])(options.animation) === 'object' && 'easingFunction' in options.animation ? options.animation.easingFunction : 'easeInOutQuad';
    var easingFunction = util.easingFunctions[easingName];
    if (!easingFunction) {
      throw new Error('Unknown easing function ' + (0, _stringify2['default'])(easingName) + '. ' + 'Choose from: ' + (0, _keys2['default'])(util.easingFunctions).join(', '));
    }

    var initTime = new Date().valueOf();
    var anyChanged = false;

    var next = function next() {
      if (!me.props.touch.dragging) {
        var now = new Date().valueOf();
        var time = now - initTime;
        var ease = easingFunction(time / duration);
        var done = time > duration;
        var s = done || finalStart === null ? finalStart : initStart + (finalStart - initStart) * ease;
        var e = done || finalEnd === null ? finalEnd : initEnd + (finalEnd - initEnd) * ease;

        changed = me._applyRange(s, e);
        DateUtil.updateHiddenDates(me.options.moment, me.body, me.options.hiddenDates);
        anyChanged = anyChanged || changed;

        var params = {
          start: new Date(me.start),
          end: new Date(me.end),
          byUser: options.byUser,
          event: options.event
        };

        if (frameCallback) {
          frameCallback(ease, changed, done);
        }

        if (changed) {
          me.body.emitter.emit('rangechange', params);
        }

        if (done) {
          if (anyChanged) {
            me.body.emitter.emit('rangechanged', params);
            if (callback) {
              return callback();
            }
          }
        } else {
          // animate with as high as possible frame rate, leave 20 ms in between
          // each to prevent the browser from blocking
          me.animationTimer = setTimeout(next, 20);
        }
      }
    };

    return next();
  } else {
    var changed = this._applyRange(finalStart, finalEnd);
    DateUtil.updateHiddenDates(this.options.moment, this.body, this.options.hiddenDates);
    if (changed) {
      var params = {
        start: new Date(this.start),
        end: new Date(this.end),
        byUser: options.byUser,
        event: options.event
      };

      this.body.emitter.emit('rangechange', params);
      clearTimeout(me.timeoutID);
      me.timeoutID = setTimeout(function () {
        me.body.emitter.emit('rangechanged', params);
      }, 200);
      if (callback) {
        return callback();
      }
    }
  }
};

/**
 * Get the number of milliseconds per pixel.
 *
 * @returns {undefined|number}
 */
Range.prototype.getMillisecondsPerPixel = function () {
  if (this.millisecondsPerPixelCache === undefined) {
    this.millisecondsPerPixelCache = (this.end - this.start) / this.body.dom.center.clientWidth;
  }
  return this.millisecondsPerPixelCache;
};

/**
 * Stop an animation
 * @private
 */
Range.prototype._cancelAnimation = function () {
  if (this.animationTimer) {
    clearTimeout(this.animationTimer);
    this.animationTimer = null;
  }
};

/**
 * Set a new start and end range. This method is the same as setRange, but
 * does not trigger a range change and range changed event, and it returns
 * true when the range is changed
 * @param {number} [start]
 * @param {number} [end]
 * @return {boolean} changed
 * @private
 */
Range.prototype._applyRange = function (start, end) {
  var newStart = start != null ? util.convert(start, 'Date').valueOf() : this.start,
      newEnd = end != null ? util.convert(end, 'Date').valueOf() : this.end,
      max = this.options.max != null ? util.convert(this.options.max, 'Date').valueOf() : null,
      min = this.options.min != null ? util.convert(this.options.min, 'Date').valueOf() : null,
      diff;

  // check for valid number
  if (isNaN(newStart) || newStart === null) {
    throw new Error('Invalid start "' + start + '"');
  }
  if (isNaN(newEnd) || newEnd === null) {
    throw new Error('Invalid end "' + end + '"');
  }

  // prevent end < start
  if (newEnd < newStart) {
    newEnd = newStart;
  }

  // prevent start < min
  if (min !== null) {
    if (newStart < min) {
      diff = min - newStart;
      newStart += diff;
      newEnd += diff;

      // prevent end > max
      if (max != null) {
        if (newEnd > max) {
          newEnd = max;
        }
      }
    }
  }

  // prevent end > max
  if (max !== null) {
    if (newEnd > max) {
      diff = newEnd - max;
      newStart -= diff;
      newEnd -= diff;

      // prevent start < min
      if (min != null) {
        if (newStart < min) {
          newStart = min;
        }
      }
    }
  }

  // prevent (end-start) < zoomMin
  if (this.options.zoomMin !== null) {
    var zoomMin = parseFloat(this.options.zoomMin);
    if (zoomMin < 0) {
      zoomMin = 0;
    }
    if (newEnd - newStart < zoomMin) {
      // compensate for a scale of 0.5 ms
      var compensation = 0.5;
      if (this.end - this.start === zoomMin && newStart >= this.start - compensation && newEnd <= this.end) {
        // ignore this action, we are already zoomed to the minimum
        newStart = this.start;
        newEnd = this.end;
      } else {
        // zoom to the minimum
        diff = zoomMin - (newEnd - newStart);
        newStart -= diff / 2;
        newEnd += diff / 2;
      }
    }
  }

  // prevent (end-start) > zoomMax
  if (this.options.zoomMax !== null) {
    var zoomMax = parseFloat(this.options.zoomMax);
    if (zoomMax < 0) {
      zoomMax = 0;
    }

    if (newEnd - newStart > zoomMax) {
      if (this.end - this.start === zoomMax && newStart < this.start && newEnd > this.end) {
        // ignore this action, we are already zoomed to the maximum
        newStart = this.start;
        newEnd = this.end;
      } else {
        // zoom to the maximum
        diff = newEnd - newStart - zoomMax;
        newStart += diff / 2;
        newEnd -= diff / 2;
      }
    }
  }

  var changed = this.start != newStart || this.end != newEnd;

  // if the new range does NOT overlap with the old range, emit checkRangedItems to avoid not showing ranged items (ranged meaning has end time, not necessarily of type Range)
  if (!(newStart >= this.start && newStart <= this.end || newEnd >= this.start && newEnd <= this.end) && !(this.start >= newStart && this.start <= newEnd || this.end >= newStart && this.end <= newEnd)) {
    this.body.emitter.emit('checkRangedItems');
  }

  this.start = newStart;
  this.end = newEnd;
  return changed;
};

/**
 * Retrieve the current range.
 * @return {Object} An object with start and end properties
 */
Range.prototype.getRange = function () {
  return {
    start: this.start,
    end: this.end
  };
};

/**
 * Calculate the conversion offset and scale for current range, based on
 * the provided width
 * @param {number} width
 * @param {number} [totalHidden=0]
 * @returns {{offset: number, scale: number}} conversion
 */
Range.prototype.conversion = function (width, totalHidden) {
  return Range.conversion(this.start, this.end, width, totalHidden);
};

/**
 * Static method to calculate the conversion offset and scale for a range,
 * based on the provided start, end, and width
 * @param {number} start
 * @param {number} end
 * @param {number} width
 * @param {number} [totalHidden=0]
 * @returns {{offset: number, scale: number}} conversion
 */
Range.conversion = function (start, end, width, totalHidden) {
  if (totalHidden === undefined) {
    totalHidden = 0;
  }
  if (width != 0 && end - start != 0) {
    return {
      offset: start,
      scale: width / (end - start - totalHidden)
    };
  } else {
    return {
      offset: 0,
      scale: 1
    };
  }
};

/**
 * Start dragging horizontally or vertically
 * @param {Event} event
 * @private
 */
Range.prototype._onDragStart = function (event) {
  this.deltaDifference = 0;
  this.previousDelta = 0;

  // only allow dragging when configured as movable
  if (!this.options.moveable) return;

  // only start dragging when the mouse is inside the current range
  if (!this._isInsideRange(event)) return;

  // refuse to drag when we where pinching to prevent the timeline make a jump
  // when releasing the fingers in opposite order from the touch screen
  if (!this.props.touch.allowDragging) return;

  this.stopRolling();

  this.props.touch.start = this.start;
  this.props.touch.end = this.end;
  this.props.touch.dragging = true;

  if (this.body.dom.root) {
    this.body.dom.root.style.cursor = 'move';
  }
};

/**
 * Perform dragging operation
 * @param {Event} event
 * @private
 */
Range.prototype._onDrag = function (event) {
  if (!event) return;

  if (!this.props.touch.dragging) return;

  // only allow dragging when configured as movable
  if (!this.options.moveable) return;

  // TODO: this may be redundant in hammerjs2
  // refuse to drag when we where pinching to prevent the timeline make a jump
  // when releasing the fingers in opposite order from the touch screen
  if (!this.props.touch.allowDragging) return;

  var direction = this.options.direction;
  validateDirection(direction);
  var delta = direction == 'horizontal' ? event.deltaX : event.deltaY;
  delta -= this.deltaDifference;
  var interval = this.props.touch.end - this.props.touch.start;

  // normalize dragging speed if cutout is in between.
  var duration = DateUtil.getHiddenDurationBetween(this.body.hiddenDates, this.start, this.end);
  interval -= duration;

  var width = direction == 'horizontal' ? this.body.domProps.center.width : this.body.domProps.center.height;
  var diffRange;
  if (this.options.rtl) {
    diffRange = delta / width * interval;
  } else {
    diffRange = -delta / width * interval;
  }

  var newStart = this.props.touch.start + diffRange;
  var newEnd = this.props.touch.end + diffRange;

  // snapping times away from hidden zones
  var safeStart = DateUtil.snapAwayFromHidden(this.body.hiddenDates, newStart, this.previousDelta - delta, true);
  var safeEnd = DateUtil.snapAwayFromHidden(this.body.hiddenDates, newEnd, this.previousDelta - delta, true);
  if (safeStart != newStart || safeEnd != newEnd) {
    this.deltaDifference += delta;
    this.props.touch.start = safeStart;
    this.props.touch.end = safeEnd;
    this._onDrag(event);
    return;
  }

  this.previousDelta = delta;
  this._applyRange(newStart, newEnd);

  var startDate = new Date(this.start);
  var endDate = new Date(this.end);

  // fire a rangechange event
  this.body.emitter.emit('rangechange', {
    start: startDate,
    end: endDate,
    byUser: true,
    event: event
  });

  // fire a panmove event
  this.body.emitter.emit('panmove');
};

/**
 * Stop dragging operation
 * @param {event} event
 * @private
 */
Range.prototype._onDragEnd = function (event) {
  if (!this.props.touch.dragging) return;

  // only allow dragging when configured as movable
  if (!this.options.moveable) return;

  // TODO: this may be redundant in hammerjs2
  // refuse to drag when we where pinching to prevent the timeline make a jump
  // when releasing the fingers in opposite order from the touch screen
  if (!this.props.touch.allowDragging) return;

  this.props.touch.dragging = false;
  if (this.body.dom.root) {
    this.body.dom.root.style.cursor = 'auto';
  }

  // fire a rangechanged event
  this.body.emitter.emit('rangechanged', {
    start: new Date(this.start),
    end: new Date(this.end),
    byUser: true,
    event: event
  });
};

/**
 * Event handler for mouse wheel event, used to zoom
 * Code from http://adomas.org/javascript-mouse-wheel/
 * @param {Event} event
 * @private
 */
Range.prototype._onMouseWheel = function (event) {
  // retrieve delta
  var delta = 0;
  if (event.wheelDelta) {
    /* IE/Opera. */
    delta = event.wheelDelta / 120;
  } else if (event.detail) {
    /* Mozilla case. */
    // In Mozilla, sign of delta is different than in IE.
    // Also, delta is multiple of 3.
    delta = -event.detail / 3;
  }

  // don't allow zoom when the according key is pressed and the zoomKey option or not zoomable but movable
  if (this.options.zoomKey && !event[this.options.zoomKey] && this.options.zoomable || !this.options.zoomable && this.options.moveable) {
    return;
  }

  // only allow zooming when configured as zoomable and moveable
  if (!(this.options.zoomable && this.options.moveable)) return;

  // only zoom when the mouse is inside the current range
  if (!this._isInsideRange(event)) return;

  // If delta is nonzero, handle it.
  // Basically, delta is now positive if wheel was scrolled up,
  // and negative, if wheel was scrolled down.
  if (delta) {
    // perform the zoom action. Delta is normally 1 or -1

    // adjust a negative delta such that zooming in with delta 0.1
    // equals zooming out with a delta -0.1
    var scale;
    if (delta < 0) {
      scale = 1 - delta / 5;
    } else {
      scale = 1 / (1 + delta / 5);
    }

    // calculate center, the date to zoom around
    var pointerDate;
    if (this.rolling) {
      pointerDate = this.start + (this.end - this.start) * this.options.rollingMode.offset;
    } else {
      var pointer = this.getPointer({ x: event.clientX, y: event.clientY }, this.body.dom.center);
      pointerDate = this._pointerToDate(pointer);
    }
    this.zoom(scale, pointerDate, delta, event);

    // Prevent default actions caused by mouse wheel
    // (else the page and timeline both scroll)
    event.preventDefault();
  }
};

/**
 * Start of a touch gesture
 * @param {Event} event
 * @private
 */
Range.prototype._onTouch = function (event) {
  // eslint-disable-line no-unused-vars
  this.props.touch.start = this.start;
  this.props.touch.end = this.end;
  this.props.touch.allowDragging = true;
  this.props.touch.center = null;
  this.scaleOffset = 0;
  this.deltaDifference = 0;
  // Disable the browser default handling of this event.
  util.preventDefault(event);
};

/**
 * Handle pinch event
 * @param {Event} event
 * @private
 */
Range.prototype._onPinch = function (event) {
  // only allow zooming when configured as zoomable and moveable
  if (!(this.options.zoomable && this.options.moveable)) return;

  // Disable the browser default handling of this event.
  util.preventDefault(event);

  this.props.touch.allowDragging = false;

  if (!this.props.touch.center) {
    this.props.touch.center = this.getPointer(event.center, this.body.dom.center);
  }

  this.stopRolling();

  var scale = 1 / (event.scale + this.scaleOffset);
  var centerDate = this._pointerToDate(this.props.touch.center);

  var hiddenDuration = DateUtil.getHiddenDurationBetween(this.body.hiddenDates, this.start, this.end);
  var hiddenDurationBefore = DateUtil.getHiddenDurationBefore(this.options.moment, this.body.hiddenDates, this, centerDate);
  var hiddenDurationAfter = hiddenDuration - hiddenDurationBefore;

  // calculate new start and end
  var newStart = centerDate - hiddenDurationBefore + (this.props.touch.start - (centerDate - hiddenDurationBefore)) * scale;
  var newEnd = centerDate + hiddenDurationAfter + (this.props.touch.end - (centerDate + hiddenDurationAfter)) * scale;

  // snapping times away from hidden zones
  this.startToFront = 1 - scale <= 0; // used to do the right auto correction with periodic hidden times
  this.endToFront = scale - 1 <= 0; // used to do the right auto correction with periodic hidden times

  var safeStart = DateUtil.snapAwayFromHidden(this.body.hiddenDates, newStart, 1 - scale, true);
  var safeEnd = DateUtil.snapAwayFromHidden(this.body.hiddenDates, newEnd, scale - 1, true);
  if (safeStart != newStart || safeEnd != newEnd) {
    this.props.touch.start = safeStart;
    this.props.touch.end = safeEnd;
    this.scaleOffset = 1 - event.scale;
    newStart = safeStart;
    newEnd = safeEnd;
  }

  var options = {
    animation: false,
    byUser: true,
    event: event
  };
  this.setRange(newStart, newEnd, options);

  this.startToFront = false; // revert to default
  this.endToFront = true; // revert to default
};

/**
 * Test whether the mouse from a mouse event is inside the visible window,
 * between the current start and end date
 * @param {Object} event
 * @return {boolean} Returns true when inside the visible window
 * @private
 */
Range.prototype._isInsideRange = function (event) {
  // calculate the time where the mouse is, check whether inside
  // and no scroll action should happen.
  var clientX = event.center ? event.center.x : event.clientX;
  var x;
  if (this.options.rtl) {
    x = clientX - util.getAbsoluteLeft(this.body.dom.centerContainer);
  } else {
    x = util.getAbsoluteRight(this.body.dom.centerContainer) - clientX;
  }
  var time = this.body.util.toTime(x);

  return time >= this.start && time <= this.end;
};

/**
 * Helper function to calculate the center date for zooming
 * @param {{x: number, y: number}} pointer
 * @return {number} date
 * @private
 */
Range.prototype._pointerToDate = function (pointer) {
  var conversion;
  var direction = this.options.direction;

  validateDirection(direction);

  if (direction == 'horizontal') {
    return this.body.util.toTime(pointer.x).valueOf();
  } else {
    var height = this.body.domProps.center.height;
    conversion = this.conversion(height);
    return pointer.y / conversion.scale + conversion.offset;
  }
};

/**
 * Get the pointer location relative to the location of the dom element
 * @param {{x: number, y: number}} touch
 * @param {Element} element   HTML DOM element
 * @return {{x: number, y: number}} pointer
 * @private
 */
Range.prototype.getPointer = function (touch, element) {
  if (this.options.rtl) {
    return {
      x: util.getAbsoluteRight(element) - touch.x,
      y: touch.y - util.getAbsoluteTop(element)
    };
  } else {
    return {
      x: touch.x - util.getAbsoluteLeft(element),
      y: touch.y - util.getAbsoluteTop(element)
    };
  }
};

/**
 * Zoom the range the given scale in or out. Start and end date will
 * be adjusted, and the timeline will be redrawn. You can optionally give a
 * date around which to zoom.
 * For example, try scale = 0.9 or 1.1
 * @param {number} scale      Scaling factor. Values above 1 will zoom out,
 *                            values below 1 will zoom in.
 * @param {number} [center]   Value representing a date around which will
 *                            be zoomed.
 * @param {number} delta
 * @param {Event} event
 */
Range.prototype.zoom = function (scale, center, delta, event) {
  // if centerDate is not provided, take it half between start Date and end Date
  if (center == null) {
    center = (this.start + this.end) / 2;
  }

  var hiddenDuration = DateUtil.getHiddenDurationBetween(this.body.hiddenDates, this.start, this.end);
  var hiddenDurationBefore = DateUtil.getHiddenDurationBefore(this.options.moment, this.body.hiddenDates, this, center);
  var hiddenDurationAfter = hiddenDuration - hiddenDurationBefore;

  // calculate new start and end
  var newStart = center - hiddenDurationBefore + (this.start - (center - hiddenDurationBefore)) * scale;
  var newEnd = center + hiddenDurationAfter + (this.end - (center + hiddenDurationAfter)) * scale;

  // snapping times away from hidden zones
  this.startToFront = delta > 0 ? false : true; // used to do the right autocorrection with periodic hidden times
  this.endToFront = -delta > 0 ? false : true; // used to do the right autocorrection with periodic hidden times
  var safeStart = DateUtil.snapAwayFromHidden(this.body.hiddenDates, newStart, delta, true);
  var safeEnd = DateUtil.snapAwayFromHidden(this.body.hiddenDates, newEnd, -delta, true);
  if (safeStart != newStart || safeEnd != newEnd) {
    newStart = safeStart;
    newEnd = safeEnd;
  }

  var options = {
    animation: false,
    byUser: true,
    event: event
  };
  this.setRange(newStart, newEnd, options);

  this.startToFront = false; // revert to default
  this.endToFront = true; // revert to default
};

/**
 * Move the range with a given delta to the left or right. Start and end
 * value will be adjusted. For example, try delta = 0.1 or -0.1
 * @param {number}  delta     Moving amount. Positive value will move right,
 *                            negative value will move left
 */
Range.prototype.move = function (delta) {
  // zoom start Date and end Date relative to the centerDate
  var diff = this.end - this.start;

  // apply new values
  var newStart = this.start + diff * delta;
  var newEnd = this.end + diff * delta;

  // TODO: reckon with min and max range

  this.start = newStart;
  this.end = newEnd;
};

/**
 * Move the range to a new center point
 * @param {number} moveTo      New center point of the range
 */
Range.prototype.moveTo = function (moveTo) {
  var center = (this.start + this.end) / 2;

  var diff = center - moveTo;

  // calculate new start and end
  var newStart = this.start - diff;
  var newEnd = this.end - diff;

  var options = {
    animation: false,
    byUser: true,
    event: null
  };
  this.setRange(newStart, newEnd, options);
};

module.exports = Range;

/***/ }),
/* 65 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _stringify = __webpack_require__(19);

var _stringify2 = _interopRequireDefault(_stringify);

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var Emitter = __webpack_require__(44);
var Hammer = __webpack_require__(10);
var hammerUtil = __webpack_require__(37);
var util = __webpack_require__(2);
var TimeAxis = __webpack_require__(45);
var Activator = __webpack_require__(97);
var DateUtil = __webpack_require__(36);
var CustomTime = __webpack_require__(46);

/**
 * Create a timeline visualization
 * @constructor Core
 */
function Core() {}

// turn Core into an event emitter
Emitter(Core.prototype);

/**
 * Create the main DOM for the Core: a root panel containing left, right,
 * top, bottom, content, and background panel.
 * @param {Element} container  The container element where the Core will
 *                             be attached.
 * @protected
 */
Core.prototype._create = function (container) {
  this.dom = {};

  this.dom.container = container;

  this.dom.root = document.createElement('div');
  this.dom.background = document.createElement('div');
  this.dom.backgroundVertical = document.createElement('div');
  this.dom.backgroundHorizontal = document.createElement('div');
  this.dom.centerContainer = document.createElement('div');
  this.dom.leftContainer = document.createElement('div');
  this.dom.rightContainer = document.createElement('div');
  this.dom.center = document.createElement('div');
  this.dom.left = document.createElement('div');
  this.dom.right = document.createElement('div');
  this.dom.top = document.createElement('div');
  this.dom.bottom = document.createElement('div');
  this.dom.shadowTop = document.createElement('div');
  this.dom.shadowBottom = document.createElement('div');
  this.dom.shadowTopLeft = document.createElement('div');
  this.dom.shadowBottomLeft = document.createElement('div');
  this.dom.shadowTopRight = document.createElement('div');
  this.dom.shadowBottomRight = document.createElement('div');
  this.dom.rollingModeBtn = document.createElement('div');

  this.dom.root.className = 'vis-timeline';
  this.dom.background.className = 'vis-panel vis-background';
  this.dom.backgroundVertical.className = 'vis-panel vis-background vis-vertical';
  this.dom.backgroundHorizontal.className = 'vis-panel vis-background vis-horizontal';
  this.dom.centerContainer.className = 'vis-panel vis-center';
  this.dom.leftContainer.className = 'vis-panel vis-left';
  this.dom.rightContainer.className = 'vis-panel vis-right';
  this.dom.top.className = 'vis-panel vis-top';
  this.dom.bottom.className = 'vis-panel vis-bottom';
  this.dom.left.className = 'vis-content';
  this.dom.center.className = 'vis-content';
  this.dom.right.className = 'vis-content';
  this.dom.shadowTop.className = 'vis-shadow vis-top';
  this.dom.shadowBottom.className = 'vis-shadow vis-bottom';
  this.dom.shadowTopLeft.className = 'vis-shadow vis-top';
  this.dom.shadowBottomLeft.className = 'vis-shadow vis-bottom';
  this.dom.shadowTopRight.className = 'vis-shadow vis-top';
  this.dom.shadowBottomRight.className = 'vis-shadow vis-bottom';
  this.dom.rollingModeBtn.className = 'vis-rolling-mode-btn';

  this.dom.root.appendChild(this.dom.background);
  this.dom.root.appendChild(this.dom.backgroundVertical);
  this.dom.root.appendChild(this.dom.backgroundHorizontal);
  this.dom.root.appendChild(this.dom.centerContainer);
  this.dom.root.appendChild(this.dom.leftContainer);
  this.dom.root.appendChild(this.dom.rightContainer);
  this.dom.root.appendChild(this.dom.top);
  this.dom.root.appendChild(this.dom.bottom);
  this.dom.root.appendChild(this.dom.bottom);
  this.dom.root.appendChild(this.dom.rollingModeBtn);

  this.dom.centerContainer.appendChild(this.dom.center);
  this.dom.leftContainer.appendChild(this.dom.left);
  this.dom.rightContainer.appendChild(this.dom.right);
  this.dom.centerContainer.appendChild(this.dom.shadowTop);
  this.dom.centerContainer.appendChild(this.dom.shadowBottom);
  this.dom.leftContainer.appendChild(this.dom.shadowTopLeft);
  this.dom.leftContainer.appendChild(this.dom.shadowBottomLeft);
  this.dom.rightContainer.appendChild(this.dom.shadowTopRight);
  this.dom.rightContainer.appendChild(this.dom.shadowBottomRight);

  // size properties of each of the panels
  this.props = {
    root: {},
    background: {},
    centerContainer: {},
    leftContainer: {},
    rightContainer: {},
    center: {},
    left: {},
    right: {},
    top: {},
    bottom: {},
    border: {},
    scrollTop: 0,
    scrollTopMin: 0
  };

  this.on('rangechange', function () {
    if (this.initialDrawDone === true) {
      this._redraw();
    }
  }.bind(this));
  this.on('rangechanged', function () {
    if (!this.initialRangeChangeDone) {
      this.initialRangeChangeDone = true;
    }
  }.bind(this));
  this.on('touch', this._onTouch.bind(this));
  this.on('panmove', this._onDrag.bind(this));

  var me = this;
  this._origRedraw = this._redraw.bind(this);
  this._redraw = util.throttle(this._origRedraw);

  this.on('_change', function (properties) {
    if (me.itemSet && me.itemSet.initialItemSetDrawn && properties && properties.queue == true) {
      me._redraw();
    } else {
      me._origRedraw();
    }
  });

  // create event listeners for all interesting events, these events will be
  // emitted via emitter
  this.hammer = new Hammer(this.dom.root);
  var pinchRecognizer = this.hammer.get('pinch').set({ enable: true });
  hammerUtil.disablePreventDefaultVertically(pinchRecognizer);
  this.hammer.get('pan').set({ threshold: 5, direction: Hammer.DIRECTION_HORIZONTAL });
  this.listeners = {};

  var events = ['tap', 'doubletap', 'press', 'pinch', 'pan', 'panstart', 'panmove', 'panend'
  // TODO: cleanup
  //'touch', 'pinch',
  //'tap', 'doubletap', 'hold',
  //'dragstart', 'drag', 'dragend',
  //'mousewheel', 'DOMMouseScroll' // DOMMouseScroll is needed for Firefox
  ];
  events.forEach(function (type) {
    var listener = function listener(event) {
      if (me.isActive()) {
        me.emit(type, event);
      }
    };
    me.hammer.on(type, listener);
    me.listeners[type] = listener;
  });

  // emulate a touch event (emitted before the start of a pan, pinch, tap, or press)
  hammerUtil.onTouch(this.hammer, function (event) {
    me.emit('touch', event);
  }.bind(this));

  // emulate a release event (emitted after a pan, pinch, tap, or press)
  hammerUtil.onRelease(this.hammer, function (event) {
    me.emit('release', event);
  }.bind(this));

  /**
   *
   * @param {WheelEvent} event
   */
  function onMouseWheel(event) {
    if (this.isActive()) {
      this.emit('mousewheel', event);
    }

    // deltaX and deltaY normalization from jquery.mousewheel.js
    var deltaX = 0;
    var deltaY = 0;

    // Old school scrollwheel delta
    if ('detail' in event) {
      deltaY = event.detail * -1;
    }
    if ('wheelDelta' in event) {
      deltaY = event.wheelDelta;
    }
    if ('wheelDeltaY' in event) {
      deltaY = event.wheelDeltaY;
    }
    if ('wheelDeltaX' in event) {
      deltaX = event.wheelDeltaX * -1;
    }

    // Firefox < 17 horizontal scrolling related to DOMMouseScroll event
    if ('axis' in event && event.axis === event.HORIZONTAL_AXIS) {
      deltaX = deltaY * -1;
      deltaY = 0;
    }

    // New school wheel delta (wheel event)
    if ('deltaY' in event) {
      deltaY = event.deltaY * -1;
    }
    if ('deltaX' in event) {
      deltaX = event.deltaX;
    }

    // prevent scrolling when zoomKey defined or activated
    if (!this.options.zoomKey || event[this.options.zoomKey]) return;

    // Prevent default actions caused by mouse wheel
    // (else the page and timeline both scroll)
    event.preventDefault();

    if (this.options.verticalScroll && Math.abs(deltaY) >= Math.abs(deltaX)) {
      var current = this.props.scrollTop;
      var adjusted = current + deltaY;

      if (this.isActive()) {
        this._setScrollTop(adjusted);
        this._redraw();
        this.emit('scroll', event);
      }
    } else if (this.options.horizontalScroll) {
      var delta = Math.abs(deltaX) >= Math.abs(deltaY) ? deltaX : deltaY;

      // calculate a single scroll jump relative to the range scale
      var diff = delta / 120 * (this.range.end - this.range.start) / 20;
      // calculate new start and end
      var newStart = this.range.start + diff;
      var newEnd = this.range.end + diff;

      var options = {
        animation: false,
        byUser: true,
        event: event
      };
      this.range.setRange(newStart, newEnd, options);
    }
  }

  if (this.dom.centerContainer.addEventListener) {
    // IE9, Chrome, Safari, Opera
    this.dom.centerContainer.addEventListener("mousewheel", onMouseWheel.bind(this), false);
    // Firefox
    this.dom.centerContainer.addEventListener("DOMMouseScroll", onMouseWheel.bind(this), false);
  } else {
    // IE 6/7/8
    this.dom.centerContainer.attachEvent("onmousewheel", onMouseWheel.bind(this));
  }

  /**
   *
   * @param {scroll} event
   */
  function onMouseScrollSide(event) {
    if (!me.options.verticalScroll) return;
    event.preventDefault();
    if (me.isActive()) {
      var adjusted = -event.target.scrollTop;
      me._setScrollTop(adjusted);
      me._redraw();
      me.emit('scrollSide', event);
    }
  }

  this.dom.left.parentNode.addEventListener('scroll', onMouseScrollSide.bind(this));
  this.dom.right.parentNode.addEventListener('scroll', onMouseScrollSide.bind(this));

  var itemAddedToTimeline = false;

  /**
   *
   * @param {dragover} event
   * @returns {boolean}
   */
  function handleDragOver(event) {
    if (event.preventDefault) {
      event.preventDefault(); // Necessary. Allows us to drop.
    }

    // make sure your target is a vis element
    if (!event.target.className.indexOf("vis") > -1) return;

    // make sure only one item is added every time you're over the timeline
    if (itemAddedToTimeline) return;

    event.dataTransfer.dropEffect = 'move';
    itemAddedToTimeline = true;
    return false;
  }

  /**
   *
   * @param {drop} event
   * @returns {boolean}
   */
  function handleDrop(event) {
    // prevent redirect to blank page - Firefox
    if (event.preventDefault) {
      event.preventDefault();
    }
    if (event.stopPropagation) {
      event.stopPropagation();
    }
    // return when dropping non-vis items
    try {
      var itemData = JSON.parse(event.dataTransfer.getData("text"));
      if (!itemData || !itemData.content) return;
    } catch (err) {
      return false;
    }

    itemAddedToTimeline = false;
    event.center = {
      x: event.clientX,
      y: event.clientY
    };

    if (itemData.target !== 'item') {
      me.itemSet._onAddItem(event);
    } else {
      me.itemSet._onDropObjectOnItem(event);
    }
    me.emit('drop', me.getEventProperties(event));
    return false;
  }

  this.dom.center.addEventListener('dragover', handleDragOver.bind(this), false);
  this.dom.center.addEventListener('drop', handleDrop.bind(this), false);

  this.customTimes = [];

  // store state information needed for touch events
  this.touch = {};

  this.redrawCount = 0;
  this.initialDrawDone = false;
  this.initialRangeChangeDone = false;

  // attach the root panel to the provided container
  if (!container) throw new Error('No container provided');
  container.appendChild(this.dom.root);
};

/**
 * Set options. Options will be passed to all components loaded in the Timeline.
 * @param {Object} [options]
 *                           {String} orientation
 *                              Vertical orientation for the Timeline,
 *                              can be 'bottom' (default) or 'top'.
 *                           {string | number} width
 *                              Width for the timeline, a number in pixels or
 *                              a css string like '1000px' or '75%'. '100%' by default.
 *                           {string | number} height
 *                              Fixed height for the Timeline, a number in pixels or
 *                              a css string like '400px' or '75%'. If undefined,
 *                              The Timeline will automatically size such that
 *                              its contents fit.
 *                           {string | number} minHeight
 *                              Minimum height for the Timeline, a number in pixels or
 *                              a css string like '400px' or '75%'.
 *                           {string | number} maxHeight
 *                              Maximum height for the Timeline, a number in pixels or
 *                              a css string like '400px' or '75%'.
 *                           {number | Date | string} start
 *                              Start date for the visible window
 *                           {number | Date | string} end
 *                              End date for the visible window
 */
Core.prototype.setOptions = function (options) {
  if (options) {
    // copy the known options
    var fields = ['width', 'height', 'minHeight', 'maxHeight', 'autoResize', 'start', 'end', 'clickToUse', 'dataAttributes', 'hiddenDates', 'locale', 'locales', 'moment', 'rtl', 'zoomKey', 'horizontalScroll', 'verticalScroll'];
    util.selectiveExtend(fields, this.options, options);

    this.dom.rollingModeBtn.style.visibility = 'hidden';

    if (this.options.rtl) {
      this.dom.container.style.direction = "rtl";
      this.dom.backgroundVertical.className = 'vis-panel vis-background vis-vertical-rtl';
    }

    if (this.options.verticalScroll) {
      if (this.options.rtl) {
        this.dom.rightContainer.className = 'vis-panel vis-right vis-vertical-scroll';
      } else {
        this.dom.leftContainer.className = 'vis-panel vis-left vis-vertical-scroll';
      }
    }

    if ((0, _typeof3['default'])(this.options.orientation) !== 'object') {
      this.options.orientation = { item: undefined, axis: undefined };
    }
    if ('orientation' in options) {
      if (typeof options.orientation === 'string') {
        this.options.orientation = {
          item: options.orientation,
          axis: options.orientation
        };
      } else if ((0, _typeof3['default'])(options.orientation) === 'object') {
        if ('item' in options.orientation) {
          this.options.orientation.item = options.orientation.item;
        }
        if ('axis' in options.orientation) {
          this.options.orientation.axis = options.orientation.axis;
        }
      }
    }

    if (this.options.orientation.axis === 'both') {
      if (!this.timeAxis2) {
        var timeAxis2 = this.timeAxis2 = new TimeAxis(this.body);
        timeAxis2.setOptions = function (options) {
          var _options = options ? util.extend({}, options) : {};
          _options.orientation = 'top'; // override the orientation option, always top
          TimeAxis.prototype.setOptions.call(timeAxis2, _options);
        };
        this.components.push(timeAxis2);
      }
    } else {
      if (this.timeAxis2) {
        var index = this.components.indexOf(this.timeAxis2);
        if (index !== -1) {
          this.components.splice(index, 1);
        }
        this.timeAxis2.destroy();
        this.timeAxis2 = null;
      }
    }

    // if the graph2d's drawPoints is a function delegate the callback to the onRender property
    if (typeof options.drawPoints == 'function') {
      options.drawPoints = {
        onRender: options.drawPoints
      };
    }

    if ('hiddenDates' in this.options) {
      DateUtil.convertHiddenOptions(this.options.moment, this.body, this.options.hiddenDates);
    }

    if ('clickToUse' in options) {
      if (options.clickToUse) {
        if (!this.activator) {
          this.activator = new Activator(this.dom.root);
        }
      } else {
        if (this.activator) {
          this.activator.destroy();
          delete this.activator;
        }
      }
    }

    if ('showCustomTime' in options) {
      throw new Error('Option `showCustomTime` is deprecated. Create a custom time bar via timeline.addCustomTime(time [, id])');
    }

    // enable/disable autoResize
    this._initAutoResize();
  }

  // propagate options to all components
  this.components.forEach(function (component) {
    return component.setOptions(options);
  });

  // enable/disable configure
  if ('configure' in options) {
    if (!this.configurator) {
      this.configurator = this._createConfigurator();
    }

    this.configurator.setOptions(options.configure);

    // collect the settings of all components, and pass them to the configuration system
    var appliedOptions = util.deepExtend({}, this.options);
    this.components.forEach(function (component) {
      util.deepExtend(appliedOptions, component.options);
    });
    this.configurator.setModuleOptions({ global: appliedOptions });
  }

  this._redraw();
};

/**
 * Returns true when the Timeline is active.
 * @returns {boolean}
 */
Core.prototype.isActive = function () {
  return !this.activator || this.activator.active;
};

/**
 * Destroy the Core, clean up all DOM elements and event listeners.
 */
Core.prototype.destroy = function () {
  // unbind datasets
  this.setItems(null);
  this.setGroups(null);

  // remove all event listeners
  this.off();

  // stop checking for changed size
  this._stopAutoResize();

  // remove from DOM
  if (this.dom.root.parentNode) {
    this.dom.root.parentNode.removeChild(this.dom.root);
  }
  this.dom = null;

  // remove Activator
  if (this.activator) {
    this.activator.destroy();
    delete this.activator;
  }

  // cleanup hammer touch events
  for (var event in this.listeners) {
    if (this.listeners.hasOwnProperty(event)) {
      delete this.listeners[event];
    }
  }
  this.listeners = null;
  this.hammer = null;

  // give all components the opportunity to cleanup
  this.components.forEach(function (component) {
    return component.destroy();
  });

  this.body = null;
};

/**
 * Set a custom time bar
 * @param {Date} time
 * @param {number} [id=undefined] Optional id of the custom time bar to be adjusted.
 */
Core.prototype.setCustomTime = function (time, id) {
  var customTimes = this.customTimes.filter(function (component) {
    return id === component.options.id;
  });

  if (customTimes.length === 0) {
    throw new Error('No custom time bar found with id ' + (0, _stringify2['default'])(id));
  }

  if (customTimes.length > 0) {
    customTimes[0].setCustomTime(time);
  }
};

/**
 * Retrieve the current custom time.
 * @param {number} [id=undefined]    Id of the custom time bar.
 * @return {Date | undefined} customTime
 */
Core.prototype.getCustomTime = function (id) {
  var customTimes = this.customTimes.filter(function (component) {
    return component.options.id === id;
  });

  if (customTimes.length === 0) {
    throw new Error('No custom time bar found with id ' + (0, _stringify2['default'])(id));
  }
  return customTimes[0].getCustomTime();
};

/**
 * Set a custom title for the custom time bar.
 * @param {string} [title] Custom title
 * @param {number} [id=undefined]    Id of the custom time bar.
 * @returns {*}
 */
Core.prototype.setCustomTimeTitle = function (title, id) {
  var customTimes = this.customTimes.filter(function (component) {
    return component.options.id === id;
  });

  if (customTimes.length === 0) {
    throw new Error('No custom time bar found with id ' + (0, _stringify2['default'])(id));
  }
  if (customTimes.length > 0) {
    return customTimes[0].setCustomTitle(title);
  }
};

/**
 * Retrieve meta information from an event.
 * Should be overridden by classes extending Core
 * @param {Event} event
 * @return {Object} An object with related information.
 */
Core.prototype.getEventProperties = function (event) {
  return { event: event };
};

/**
 * Add custom vertical bar
 * @param {Date | string | number} [time]  A Date, unix timestamp, or
 *                                         ISO date string. Time point where
 *                                         the new bar should be placed.
 *                                         If not provided, `new Date()` will
 *                                         be used.
 * @param {number | string} [id=undefined] Id of the new bar. Optional
 * @return {number | string}               Returns the id of the new bar
 */
Core.prototype.addCustomTime = function (time, id) {
  var timestamp = time !== undefined ? util.convert(time, 'Date').valueOf() : new Date();

  var exists = this.customTimes.some(function (customTime) {
    return customTime.options.id === id;
  });
  if (exists) {
    throw new Error('A custom time with id ' + (0, _stringify2['default'])(id) + ' already exists');
  }

  var customTime = new CustomTime(this.body, util.extend({}, this.options, {
    time: timestamp,
    id: id
  }));

  this.customTimes.push(customTime);
  this.components.push(customTime);
  this._redraw();

  return id;
};

/**
 * Remove previously added custom bar
 * @param {int} id ID of the custom bar to be removed
 * [at]returns {boolean} True if the bar exists and is removed, false otherwise
 */
Core.prototype.removeCustomTime = function (id) {
  var customTimes = this.customTimes.filter(function (bar) {
    return bar.options.id === id;
  });

  if (customTimes.length === 0) {
    throw new Error('No custom time bar found with id ' + (0, _stringify2['default'])(id));
  }

  customTimes.forEach(function (customTime) {
    this.customTimes.splice(this.customTimes.indexOf(customTime), 1);
    this.components.splice(this.components.indexOf(customTime), 1);
    customTime.destroy();
  }.bind(this));
};

/**
 * Get the id's of the currently visible items.
 * @returns {Array} The ids of the visible items
 */
Core.prototype.getVisibleItems = function () {
  return this.itemSet && this.itemSet.getVisibleItems() || [];
};

/**
 * Set Core window such that it fits all items
 * @param {Object} [options]  Available options:
 *                                `animation: boolean | {duration: number, easingFunction: string}`
 *                                    If true (default), the range is animated
 *                                    smoothly to the new window. An object can be
 *                                    provided to specify duration and easing function.
 *                                    Default duration is 500 ms, and default easing
 *                                    function is 'easeInOutQuad'.
 * @param {function} [callback] a callback funtion to be executed at the end of this function
 */
Core.prototype.fit = function (options, callback) {
  var range = this.getDataRange();

  // skip range set if there is no min and max date
  if (range.min === null && range.max === null) {
    return;
  }

  // apply a margin of 1% left and right of the data
  var interval = range.max - range.min;
  var min = new Date(range.min.valueOf() - interval * 0.01);
  var max = new Date(range.max.valueOf() + interval * 0.01);
  var animation = options && options.animation !== undefined ? options.animation : true;
  this.range.setRange(min, max, { animation: animation }, callback);
};

/**
 * Calculate the data range of the items start and end dates
 * [at]returns {{min: [Date], max: [Date]}}
 * @protected
 */
Core.prototype.getDataRange = function () {
  // must be implemented by Timeline and Graph2d
  throw new Error('Cannot invoke abstract method getDataRange');
};

/**
 * Set the visible window. Both parameters are optional, you can change only
 * start or only end. Syntax:
 *
 *     TimeLine.setWindow(start, end)
 *     TimeLine.setWindow(start, end, options)
 *     TimeLine.setWindow(range)
 *
 * Where start and end can be a Date, number, or string, and range is an
 * object with properties start and end.
 *
 * @param {Date | number | string | Object} [start] Start date of visible window
 * @param {Date | number | string} [end]            End date of visible window
 * @param {Object} [options]  Available options:
 *                                `animation: boolean | {duration: number, easingFunction: string}`
 *                                    If true (default), the range is animated
 *                                    smoothly to the new window. An object can be
 *                                    provided to specify duration and easing function.
 *                                    Default duration is 500 ms, and default easing
 *                                    function is 'easeInOutQuad'.
 * @param {function} [callback] a callback funtion to be executed at the end of this function
 */
Core.prototype.setWindow = function (start, end, options, callback) {
  if (typeof arguments[2] == "function") {
    callback = arguments[2];
    options = {};
  }
  var animation;
  var range;
  if (arguments.length == 1) {
    range = arguments[0];
    animation = range.animation !== undefined ? range.animation : true;
    this.range.setRange(range.start, range.end, { animation: animation });
  } else if (arguments.length == 2 && typeof arguments[1] == "function") {
    range = arguments[0];
    callback = arguments[1];
    animation = range.animation !== undefined ? range.animation : true;
    this.range.setRange(range.start, range.end, { animation: animation }, callback);
  } else {
    animation = options && options.animation !== undefined ? options.animation : true;
    this.range.setRange(start, end, { animation: animation }, callback);
  }
};

/**
 * Move the window such that given time is centered on screen.
 * @param {Date | number | string} time
 * @param {Object} [options]  Available options:
 *                                `animation: boolean | {duration: number, easingFunction: string}`
 *                                    If true (default), the range is animated
 *                                    smoothly to the new window. An object can be
 *                                    provided to specify duration and easing function.
 *                                    Default duration is 500 ms, and default easing
 *                                    function is 'easeInOutQuad'.
 * @param {function} [callback] a callback funtion to be executed at the end of this function
 */
Core.prototype.moveTo = function (time, options, callback) {
  if (typeof arguments[1] == "function") {
    callback = arguments[1];
    options = {};
  }
  var interval = this.range.end - this.range.start;
  var t = util.convert(time, 'Date').valueOf();

  var start = t - interval / 2;
  var end = t + interval / 2;
  var animation = options && options.animation !== undefined ? options.animation : true;

  this.range.setRange(start, end, { animation: animation }, callback);
};

/**
 * Get the visible window
 * @return {{start: Date, end: Date}}   Visible range
 */
Core.prototype.getWindow = function () {
  var range = this.range.getRange();
  return {
    start: new Date(range.start),
    end: new Date(range.end)
  };
};

/**
 * Zoom in the window such that given time is centered on screen.
 * @param {number} percentage - must be between [0..1]
 * @param {Object} [options]  Available options:
 *                                `animation: boolean | {duration: number, easingFunction: string}`
 *                                    If true (default), the range is animated
 *                                    smoothly to the new window. An object can be
 *                                    provided to specify duration and easing function.
 *                                    Default duration is 500 ms, and default easing
 *                                    function is 'easeInOutQuad'.
 * @param {function} [callback] a callback funtion to be executed at the end of this function
 */
Core.prototype.zoomIn = function (percentage, options, callback) {
  if (!percentage || percentage < 0 || percentage > 1) return;
  if (typeof arguments[1] == "function") {
    callback = arguments[1];
    options = {};
  }
  var range = this.getWindow();
  var start = range.start.valueOf();
  var end = range.end.valueOf();
  var interval = end - start;
  var newInterval = interval / (1 + percentage);
  var distance = (interval - newInterval) / 2;
  var newStart = start + distance;
  var newEnd = end - distance;

  this.setWindow(newStart, newEnd, options, callback);
};

/**
 * Zoom out the window such that given time is centered on screen.
 * @param {number} percentage - must be between [0..1]
 * @param {Object} [options]  Available options:
 *                                `animation: boolean | {duration: number, easingFunction: string}`
 *                                    If true (default), the range is animated
 *                                    smoothly to the new window. An object can be
 *                                    provided to specify duration and easing function.
 *                                    Default duration is 500 ms, and default easing
 *                                    function is 'easeInOutQuad'.
 * @param {function} [callback] a callback funtion to be executed at the end of this function
 */
Core.prototype.zoomOut = function (percentage, options, callback) {
  if (!percentage || percentage < 0 || percentage > 1) return;
  if (typeof arguments[1] == "function") {
    callback = arguments[1];
    options = {};
  }
  var range = this.getWindow();
  var start = range.start.valueOf();
  var end = range.end.valueOf();
  var interval = end - start;
  var newStart = start - interval * percentage / 2;
  var newEnd = end + interval * percentage / 2;

  this.setWindow(newStart, newEnd, options, callback);
};

/**
 * Force a redraw. Can be overridden by implementations of Core
 *
 * Note: this function will be overridden on construction with a trottled version
 */
Core.prototype.redraw = function () {
  this._redraw();
};

/**
 * Redraw for internal use. Redraws all components. See also the public
 * method redraw.
 * @protected
 */
Core.prototype._redraw = function () {
  this.redrawCount++;
  var resized = false;
  var options = this.options;
  var props = this.props;
  var dom = this.dom;

  if (!dom || !dom.container || dom.root.offsetWidth == 0) return; // when destroyed, or invisible

  DateUtil.updateHiddenDates(this.options.moment, this.body, this.options.hiddenDates);

  // update class names
  if (options.orientation == 'top') {
    util.addClassName(dom.root, 'vis-top');
    util.removeClassName(dom.root, 'vis-bottom');
  } else {
    util.removeClassName(dom.root, 'vis-top');
    util.addClassName(dom.root, 'vis-bottom');
  }

  // update root width and height options
  dom.root.style.maxHeight = util.option.asSize(options.maxHeight, '');
  dom.root.style.minHeight = util.option.asSize(options.minHeight, '');
  dom.root.style.width = util.option.asSize(options.width, '');

  // calculate border widths
  props.border.left = (dom.centerContainer.offsetWidth - dom.centerContainer.clientWidth) / 2;
  props.border.right = props.border.left;
  props.border.top = (dom.centerContainer.offsetHeight - dom.centerContainer.clientHeight) / 2;
  props.border.bottom = props.border.top;
  props.borderRootHeight = dom.root.offsetHeight - dom.root.clientHeight;
  props.borderRootWidth = dom.root.offsetWidth - dom.root.clientWidth;

  // workaround for a bug in IE: the clientWidth of an element with
  // a height:0px and overflow:hidden is not calculated and always has value 0
  if (dom.centerContainer.clientHeight === 0) {
    props.border.left = props.border.top;
    props.border.right = props.border.left;
  }
  if (dom.root.clientHeight === 0) {
    props.borderRootWidth = props.borderRootHeight;
  }

  // calculate the heights. If any of the side panels is empty, we set the height to
  // minus the border width, such that the border will be invisible
  props.center.height = dom.center.offsetHeight;
  props.left.height = dom.left.offsetHeight;
  props.right.height = dom.right.offsetHeight;
  props.top.height = dom.top.clientHeight || -props.border.top;
  props.bottom.height = dom.bottom.clientHeight || -props.border.bottom;

  // TODO: compensate borders when any of the panels is empty.

  // apply auto height
  // TODO: only calculate autoHeight when needed (else we cause an extra reflow/repaint of the DOM)
  var contentHeight = Math.max(props.left.height, props.center.height, props.right.height);
  var autoHeight = props.top.height + contentHeight + props.bottom.height + props.borderRootHeight + props.border.top + props.border.bottom;
  dom.root.style.height = util.option.asSize(options.height, autoHeight + 'px');

  // calculate heights of the content panels
  props.root.height = dom.root.offsetHeight;
  props.background.height = props.root.height - props.borderRootHeight;
  var containerHeight = props.root.height - props.top.height - props.bottom.height - props.borderRootHeight;
  props.centerContainer.height = containerHeight;
  props.leftContainer.height = containerHeight;
  props.rightContainer.height = props.leftContainer.height;

  // calculate the widths of the panels
  props.root.width = dom.root.offsetWidth;
  props.background.width = props.root.width - props.borderRootWidth;

  if (!this.initialDrawDone) {
    props.scrollbarWidth = util.getScrollBarWidth();
  }

  if (options.verticalScroll) {
    if (options.rtl) {
      props.left.width = dom.leftContainer.clientWidth || -props.border.left;
      props.right.width = dom.rightContainer.clientWidth + props.scrollbarWidth || -props.border.right;
    } else {
      props.left.width = dom.leftContainer.clientWidth + props.scrollbarWidth || -props.border.left;
      props.right.width = dom.rightContainer.clientWidth || -props.border.right;
    }
  } else {
    props.left.width = dom.leftContainer.clientWidth || -props.border.left;
    props.right.width = dom.rightContainer.clientWidth || -props.border.right;
  }

  this._setDOM();

  // update the scrollTop, feasible range for the offset can be changed
  // when the height of the Core or of the contents of the center changed
  var offset = this._updateScrollTop();

  // reposition the scrollable contents
  if (options.orientation.item != 'top') {
    offset += Math.max(props.centerContainer.height - props.center.height - props.border.top - props.border.bottom, 0);
  }
  dom.center.style.top = offset + 'px';

  // show shadows when vertical scrolling is available
  var visibilityTop = props.scrollTop == 0 ? 'hidden' : '';
  var visibilityBottom = props.scrollTop == props.scrollTopMin ? 'hidden' : '';
  dom.shadowTop.style.visibility = visibilityTop;
  dom.shadowBottom.style.visibility = visibilityBottom;
  dom.shadowTopLeft.style.visibility = visibilityTop;
  dom.shadowBottomLeft.style.visibility = visibilityBottom;
  dom.shadowTopRight.style.visibility = visibilityTop;
  dom.shadowBottomRight.style.visibility = visibilityBottom;

  if (options.verticalScroll) {
    dom.rightContainer.className = 'vis-panel vis-right vis-vertical-scroll';
    dom.leftContainer.className = 'vis-panel vis-left vis-vertical-scroll';

    dom.shadowTopRight.style.visibility = "hidden";
    dom.shadowBottomRight.style.visibility = "hidden";
    dom.shadowTopLeft.style.visibility = "hidden";
    dom.shadowBottomLeft.style.visibility = "hidden";

    dom.left.style.top = '0px';
    dom.right.style.top = '0px';
  }

  if (!options.verticalScroll || props.center.height < props.centerContainer.height) {
    dom.left.style.top = offset + 'px';
    dom.right.style.top = offset + 'px';
    dom.rightContainer.className = dom.rightContainer.className.replace(new RegExp('(?:^|\\s)' + 'vis-vertical-scroll' + '(?:\\s|$)'), ' ');
    dom.leftContainer.className = dom.leftContainer.className.replace(new RegExp('(?:^|\\s)' + 'vis-vertical-scroll' + '(?:\\s|$)'), ' ');
    props.left.width = dom.leftContainer.clientWidth || -props.border.left;
    props.right.width = dom.rightContainer.clientWidth || -props.border.right;
    this._setDOM();
  }

  // enable/disable vertical panning
  var contentsOverflow = props.center.height > props.centerContainer.height;
  this.hammer.get('pan').set({
    direction: contentsOverflow ? Hammer.DIRECTION_ALL : Hammer.DIRECTION_HORIZONTAL
  });

  // redraw all components
  this.components.forEach(function (component) {
    resized = component.redraw() || resized;
  });
  var MAX_REDRAW = 5;
  if (resized) {
    if (this.redrawCount < MAX_REDRAW) {
      this.body.emitter.emit('_change');
      return;
    } else {
      console.log('WARNING: infinite loop in redraw?');
    }
  } else {
    this.redrawCount = 0;
  }

  //Emit public 'changed' event for UI updates, see issue #1592
  this.body.emitter.emit("changed");
};

Core.prototype._setDOM = function () {
  var props = this.props;
  var dom = this.dom;

  props.leftContainer.width = props.left.width;
  props.rightContainer.width = props.right.width;
  var centerWidth = props.root.width - props.left.width - props.right.width - props.borderRootWidth;
  props.center.width = centerWidth;
  props.centerContainer.width = centerWidth;
  props.top.width = centerWidth;
  props.bottom.width = centerWidth;

  // resize the panels
  dom.background.style.height = props.background.height + 'px';
  dom.backgroundVertical.style.height = props.background.height + 'px';
  dom.backgroundHorizontal.style.height = props.centerContainer.height + 'px';
  dom.centerContainer.style.height = props.centerContainer.height + 'px';
  dom.leftContainer.style.height = props.leftContainer.height + 'px';
  dom.rightContainer.style.height = props.rightContainer.height + 'px';

  dom.background.style.width = props.background.width + 'px';
  dom.backgroundVertical.style.width = props.centerContainer.width + 'px';
  dom.backgroundHorizontal.style.width = props.background.width + 'px';
  dom.centerContainer.style.width = props.center.width + 'px';
  dom.top.style.width = props.top.width + 'px';
  dom.bottom.style.width = props.bottom.width + 'px';

  // reposition the panels
  dom.background.style.left = '0';
  dom.background.style.top = '0';
  dom.backgroundVertical.style.left = props.left.width + props.border.left + 'px';
  dom.backgroundVertical.style.top = '0';
  dom.backgroundHorizontal.style.left = '0';
  dom.backgroundHorizontal.style.top = props.top.height + 'px';
  dom.centerContainer.style.left = props.left.width + 'px';
  dom.centerContainer.style.top = props.top.height + 'px';
  dom.leftContainer.style.left = '0';
  dom.leftContainer.style.top = props.top.height + 'px';
  dom.rightContainer.style.left = props.left.width + props.center.width + 'px';
  dom.rightContainer.style.top = props.top.height + 'px';
  dom.top.style.left = props.left.width + 'px';
  dom.top.style.top = '0';
  dom.bottom.style.left = props.left.width + 'px';
  dom.bottom.style.top = props.top.height + props.centerContainer.height + 'px';
  dom.center.style.left = '0';
  dom.left.style.left = '0';
  dom.right.style.left = '0';
};

// TODO: deprecated since version 1.1.0, remove some day
Core.prototype.repaint = function () {
  throw new Error('Function repaint is deprecated. Use redraw instead.');
};

/**
 * Set a current time. This can be used for example to ensure that a client's
 * time is synchronized with a shared server time.
 * Only applicable when option `showCurrentTime` is true.
 * @param {Date | string | number} time     A Date, unix timestamp, or
 *                                          ISO date string.
 */
Core.prototype.setCurrentTime = function (time) {
  if (!this.currentTime) {
    throw new Error('Option showCurrentTime must be true');
  }

  this.currentTime.setCurrentTime(time);
};

/**
 * Get the current time.
 * Only applicable when option `showCurrentTime` is true.
 * @return {Date} Returns the current time.
 */
Core.prototype.getCurrentTime = function () {
  if (!this.currentTime) {
    throw new Error('Option showCurrentTime must be true');
  }

  return this.currentTime.getCurrentTime();
};

/**
 * Convert a position on screen (pixels) to a datetime
 * @param {int}     x    Position on the screen in pixels
 * @return {Date}   time The datetime the corresponds with given position x
 * @protected
 */
// TODO: move this function to Range
Core.prototype._toTime = function (x) {
  return DateUtil.toTime(this, x, this.props.center.width);
};

/**
 * Convert a position on the global screen (pixels) to a datetime
 * @param {int}     x    Position on the screen in pixels
 * @return {Date}   time The datetime the corresponds with given position x
 * @protected
 */
// TODO: move this function to Range
Core.prototype._toGlobalTime = function (x) {
  return DateUtil.toTime(this, x, this.props.root.width);
  //var conversion = this.range.conversion(this.props.root.width);
  //return new Date(x / conversion.scale + conversion.offset);
};

/**
 * Convert a datetime (Date object) into a position on the screen
 * @param {Date}   time A date
 * @return {int}   x    The position on the screen in pixels which corresponds
 *                      with the given date.
 * @protected
 */
// TODO: move this function to Range
Core.prototype._toScreen = function (time) {
  return DateUtil.toScreen(this, time, this.props.center.width);
};

/**
 * Convert a datetime (Date object) into a position on the root
 * This is used to get the pixel density estimate for the screen, not the center panel
 * @param {Date}   time A date
 * @return {int}   x    The position on root in pixels which corresponds
 *                      with the given date.
 * @protected
 */
// TODO: move this function to Range
Core.prototype._toGlobalScreen = function (time) {
  return DateUtil.toScreen(this, time, this.props.root.width);
  //var conversion = this.range.conversion(this.props.root.width);
  //return (time.valueOf() - conversion.offset) * conversion.scale;
};

/**
 * Initialize watching when option autoResize is true
 * @private
 */
Core.prototype._initAutoResize = function () {
  if (this.options.autoResize == true) {
    this._startAutoResize();
  } else {
    this._stopAutoResize();
  }
};

/**
 * Watch for changes in the size of the container. On resize, the Panel will
 * automatically redraw itself.
 * @private
 */
Core.prototype._startAutoResize = function () {
  var me = this;

  this._stopAutoResize();

  this._onResize = function () {
    if (me.options.autoResize != true) {
      // stop watching when the option autoResize is changed to false
      me._stopAutoResize();
      return;
    }

    if (me.dom.root) {
      // check whether the frame is resized
      // Note: we compare offsetWidth here, not clientWidth. For some reason,
      // IE does not restore the clientWidth from 0 to the actual width after
      // changing the timeline's container display style from none to visible
      if (me.dom.root.offsetWidth != me.props.lastWidth || me.dom.root.offsetHeight != me.props.lastHeight) {
        me.props.lastWidth = me.dom.root.offsetWidth;
        me.props.lastHeight = me.dom.root.offsetHeight;
        me.props.scrollbarWidth = util.getScrollBarWidth();

        me.body.emitter.emit('_change');
      }
    }
  };

  // add event listener to window resize
  util.addEventListener(window, 'resize', this._onResize);

  //Prevent initial unnecessary redraw
  if (me.dom.root) {
    me.props.lastWidth = me.dom.root.offsetWidth;
    me.props.lastHeight = me.dom.root.offsetHeight;
  }

  this.watchTimer = setInterval(this._onResize, 1000);
};

/**
 * Stop watching for a resize of the frame.
 * @private
 */
Core.prototype._stopAutoResize = function () {
  if (this.watchTimer) {
    clearInterval(this.watchTimer);
    this.watchTimer = undefined;
  }

  // remove event listener on window.resize
  if (this._onResize) {
    util.removeEventListener(window, 'resize', this._onResize);
    this._onResize = null;
  }
};

/**
 * Start moving the timeline vertically
 * @param {Event} event
 * @private
 */
Core.prototype._onTouch = function (event) {
  // eslint-disable-line no-unused-vars
  this.touch.allowDragging = true;
  this.touch.initialScrollTop = this.props.scrollTop;
};

/**
 * Start moving the timeline vertically
 * @param {Event} event
 * @private
 */
Core.prototype._onPinch = function (event) {
  // eslint-disable-line no-unused-vars
  this.touch.allowDragging = false;
};

/**
 * Move the timeline vertically
 * @param {Event} event
 * @private
 */
Core.prototype._onDrag = function (event) {
  if (!event) return;
  // refuse to drag when we where pinching to prevent the timeline make a jump
  // when releasing the fingers in opposite order from the touch screen
  if (!this.touch.allowDragging) return;

  var delta = event.deltaY;

  var oldScrollTop = this._getScrollTop();
  var newScrollTop = this._setScrollTop(this.touch.initialScrollTop + delta);

  if (this.options.verticalScroll) {
    this.dom.left.parentNode.scrollTop = -this.props.scrollTop;
    this.dom.right.parentNode.scrollTop = -this.props.scrollTop;
  }

  if (newScrollTop != oldScrollTop) {
    this.emit("verticalDrag");
  }
};

/**
 * Apply a scrollTop
 * @param {number} scrollTop
 * @returns {number} scrollTop  Returns the applied scrollTop
 * @private
 */
Core.prototype._setScrollTop = function (scrollTop) {
  this.props.scrollTop = scrollTop;
  this._updateScrollTop();
  return this.props.scrollTop;
};

/**
 * Update the current scrollTop when the height of  the containers has been changed
 * @returns {number} scrollTop  Returns the applied scrollTop
 * @private
 */
Core.prototype._updateScrollTop = function () {
  // recalculate the scrollTopMin
  var scrollTopMin = Math.min(this.props.centerContainer.height - this.props.center.height, 0); // is negative or zero
  if (scrollTopMin != this.props.scrollTopMin) {
    // in case of bottom orientation, change the scrollTop such that the contents
    // do not move relative to the time axis at the bottom
    if (this.options.orientation.item != 'top') {
      this.props.scrollTop += scrollTopMin - this.props.scrollTopMin;
    }
    this.props.scrollTopMin = scrollTopMin;
  }

  // limit the scrollTop to the feasible scroll range
  if (this.props.scrollTop > 0) this.props.scrollTop = 0;
  if (this.props.scrollTop < scrollTopMin) this.props.scrollTop = scrollTopMin;

  if (this.options.verticalScroll) {
    this.dom.left.parentNode.scrollTop = -this.props.scrollTop;
    this.dom.right.parentNode.scrollTop = -this.props.scrollTop;
  }

  return this.props.scrollTop;
};

/**
 * Get the current scrollTop
 * @returns {number} scrollTop
 * @private
 */
Core.prototype._getScrollTop = function () {
  return this.props.scrollTop;
};

/**
 * Load a configurator
 * [at]returns {Object}
 * @private
 */
Core.prototype._createConfigurator = function () {
  throw new Error('Cannot invoke abstract method _createConfigurator');
};

module.exports = Core;

/***/ }),
/* 66 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var moment = __webpack_require__(9);
var DateUtil = __webpack_require__(36);
var util = __webpack_require__(2);

/**
 * The class TimeStep is an iterator for dates. You provide a start date and an
 * end date. The class itself determines the best scale (step size) based on the
 * provided start Date, end Date, and minimumStep.
 *
 * If minimumStep is provided, the step size is chosen as close as possible
 * to the minimumStep but larger than minimumStep. If minimumStep is not
 * provided, the scale is set to 1 DAY.
 * The minimumStep should correspond with the onscreen size of about 6 characters
 *
 * Alternatively, you can set a scale by hand.
 * After creation, you can initialize the class by executing first(). Then you
 * can iterate from the start date to the end date via next(). You can check if
 * the end date is reached with the function hasNext(). After each step, you can
 * retrieve the current date via getCurrent().
 * The TimeStep has scales ranging from milliseconds, seconds, minutes, hours,
 * days, to years.
 *
 * Version: 1.2
 *
 * @param {Date} [start]         The start date, for example new Date(2010, 9, 21)
 *                               or new Date(2010, 9, 21, 23, 45, 00)
 * @param {Date} [end]           The end date
 * @param {number} [minimumStep] Optional. Minimum step size in milliseconds
 * @param {Date|Array.<Date>} [hiddenDates] Optional.
 * @param {{showMajorLabels: boolean}} [options] Optional.
 * @constructor  TimeStep
 */
function TimeStep(start, end, minimumStep, hiddenDates, options) {
  this.moment = moment;

  // variables
  this.current = this.moment();
  this._start = this.moment();
  this._end = this.moment();

  this.autoScale = true;
  this.scale = 'day';
  this.step = 1;

  // initialize the range
  this.setRange(start, end, minimumStep);

  // hidden Dates options
  this.switchedDay = false;
  this.switchedMonth = false;
  this.switchedYear = false;
  if (Array.isArray(hiddenDates)) {
    this.hiddenDates = hiddenDates;
  } else if (hiddenDates != undefined) {
    this.hiddenDates = [hiddenDates];
  } else {
    this.hiddenDates = [];
  }

  this.format = TimeStep.FORMAT; // default formatting
  this.options = options ? options : {};
}

// Time formatting
TimeStep.FORMAT = {
  minorLabels: {
    millisecond: 'SSS',
    second: 's',
    minute: 'HH:mm',
    hour: 'HH:mm',
    weekday: 'ddd D',
    day: 'D',
    week: 'w',
    month: 'MMM',
    year: 'YYYY'
  },
  majorLabels: {
    millisecond: 'HH:mm:ss',
    second: 'D MMMM HH:mm',
    minute: 'ddd D MMMM',
    hour: 'ddd D MMMM',
    weekday: 'MMMM YYYY',
    day: 'MMMM YYYY',
    week: 'MMMM YYYY',
    month: 'YYYY',
    year: ''
  }
};

/**
 * Set custom constructor function for moment. Can be used to set dates
 * to UTC or to set a utcOffset.
 * @param {function} moment
 */
TimeStep.prototype.setMoment = function (moment) {
  this.moment = moment;

  // update the date properties, can have a new utcOffset
  this.current = this.moment(this.current.valueOf());
  this._start = this.moment(this._start.valueOf());
  this._end = this.moment(this._end.valueOf());
};

/**
 * Set custom formatting for the minor an major labels of the TimeStep.
 * Both `minorLabels` and `majorLabels` are an Object with properties:
 * 'millisecond', 'second', 'minute', 'hour', 'weekday', 'day', 'week', 'month', 'year'.
 * @param {{minorLabels: Object, majorLabels: Object}} format
 */
TimeStep.prototype.setFormat = function (format) {
  var defaultFormat = util.deepExtend({}, TimeStep.FORMAT);
  this.format = util.deepExtend(defaultFormat, format);
};

/**
 * Set a new range
 * If minimumStep is provided, the step size is chosen as close as possible
 * to the minimumStep but larger than minimumStep. If minimumStep is not
 * provided, the scale is set to 1 DAY.
 * The minimumStep should correspond with the onscreen size of about 6 characters
 * @param {Date} [start]      The start date and time.
 * @param {Date} [end]        The end date and time.
 * @param {int} [minimumStep] Optional. Minimum step size in milliseconds
 */
TimeStep.prototype.setRange = function (start, end, minimumStep) {
  if (!(start instanceof Date) || !(end instanceof Date)) {
    throw "No legal start or end date in method setRange";
  }

  this._start = start != undefined ? this.moment(start.valueOf()) : new Date();
  this._end = end != undefined ? this.moment(end.valueOf()) : new Date();

  if (this.autoScale) {
    this.setMinimumStep(minimumStep);
  }
};

/**
 * Set the range iterator to the start date.
 */
TimeStep.prototype.start = function () {
  this.current = this._start.clone();
  this.roundToMinor();
};

/**
 * Round the current date to the first minor date value
 * This must be executed once when the current date is set to start Date
 */
TimeStep.prototype.roundToMinor = function () {
  // round to floor
  // to prevent year & month scales rounding down to the first day of week we perform this separately
  if (this.scale == 'week') {
    this.current.weekday(0);
  }
  // IMPORTANT: we have no breaks in this switch! (this is no bug)
  // noinspection FallThroughInSwitchStatementJS
  switch (this.scale) {
    case 'year':
      this.current.year(this.step * Math.floor(this.current.year() / this.step));
      this.current.month(0);
    case 'month':
      this.current.date(1); // eslint-disable-line no-fallthrough
    case 'week': // eslint-disable-line no-fallthrough
    case 'day': // eslint-disable-line no-fallthrough
    case 'weekday':
      this.current.hours(0); // eslint-disable-line no-fallthrough
    case 'hour':
      this.current.minutes(0); // eslint-disable-line no-fallthrough
    case 'minute':
      this.current.seconds(0); // eslint-disable-line no-fallthrough
    case 'second':
      this.current.milliseconds(0); // eslint-disable-line no-fallthrough
    //case 'millisecond': // nothing to do for milliseconds
  }

  if (this.step != 1) {
    // round down to the first minor value that is a multiple of the current step size
    switch (this.scale) {
      case 'millisecond':
        this.current.subtract(this.current.milliseconds() % this.step, 'milliseconds');break;
      case 'second':
        this.current.subtract(this.current.seconds() % this.step, 'seconds');break;
      case 'minute':
        this.current.subtract(this.current.minutes() % this.step, 'minutes');break;
      case 'hour':
        this.current.subtract(this.current.hours() % this.step, 'hours');break;
      case 'weekday': // intentional fall through
      case 'day':
        this.current.subtract((this.current.date() - 1) % this.step, 'day');break;
      case 'week':
        this.current.subtract(this.current.week() % this.step, 'week');break;
      case 'month':
        this.current.subtract(this.current.month() % this.step, 'month');break;
      case 'year':
        this.current.subtract(this.current.year() % this.step, 'year');break;
      default:
        break;
    }
  }
};

/**
 * Check if the there is a next step
 * @return {boolean}  true if the current date has not passed the end date
 */
TimeStep.prototype.hasNext = function () {
  return this.current.valueOf() <= this._end.valueOf();
};

/**
 * Do the next step
 */
TimeStep.prototype.next = function () {
  var prev = this.current.valueOf();

  // Two cases, needed to prevent issues with switching daylight savings
  // (end of March and end of October)
  switch (this.scale) {
    case 'millisecond':
      this.current.add(this.step, 'millisecond');break;
    case 'second':
      this.current.add(this.step, 'second');break;
    case 'minute':
      this.current.add(this.step, 'minute');break;
    case 'hour':
      this.current.add(this.step, 'hour');

      if (this.current.month() < 6) {
        this.current.subtract(this.current.hours() % this.step, 'hour');
      } else {
        if (this.current.hours() % this.step !== 0) {
          this.current.add(this.step - this.current.hours() % this.step, 'hour');
        }
      }
      break;
    case 'weekday': // intentional fall through
    case 'day':
      this.current.add(this.step, 'day');break;
    case 'week':
      if (this.current.weekday() !== 0) {
        // we had a month break not correlating with a week's start before
        this.current.weekday(0); // switch back to week cycles
        this.current.add(this.step, 'week');
      } else if (this.options.showMajorLabels === false) {
        this.current.add(this.step, 'week'); // the default case
      } else {
        // first day of the week
        var nextWeek = this.current.clone();
        nextWeek.add(1, 'week');
        if (nextWeek.isSame(this.current, 'month')) {
          // is the first day of the next week in the same month?
          this.current.add(this.step, 'week'); // the default case
        } else {
          // inject a step at each first day of the month
          this.current.add(this.step, 'week');
          this.current.date(1);
        }
      }
      break;
    case 'month':
      this.current.add(this.step, 'month');break;
    case 'year':
      this.current.add(this.step, 'year');break;
    default:
      break;
  }

  if (this.step != 1) {
    // round down to the correct major value
    switch (this.scale) {
      case 'millisecond':
        if (this.current.milliseconds() > 0 && this.current.milliseconds() < this.step) this.current.milliseconds(0);break;
      case 'second':
        if (this.current.seconds() > 0 && this.current.seconds() < this.step) this.current.seconds(0);break;
      case 'minute':
        if (this.current.minutes() > 0 && this.current.minutes() < this.step) this.current.minutes(0);break;
      case 'hour':
        if (this.current.hours() > 0 && this.current.hours() < this.step) this.current.hours(0);break;
      case 'weekday': // intentional fall through
      case 'day':
        if (this.current.date() < this.step + 1) this.current.date(1);break;
      case 'week':
        if (this.current.week() < this.step) this.current.week(1);break; // week numbering starts at 1, not 0
      case 'month':
        if (this.current.month() < this.step) this.current.month(0);break;
      case 'year':
        break; // nothing to do for year
      default:
        break;
    }
  }

  // safety mechanism: if current time is still unchanged, move to the end
  if (this.current.valueOf() == prev) {
    this.current = this._end.clone();
  }

  // Reset switches for year, month and day. Will get set to true where appropriate in DateUtil.stepOverHiddenDates
  this.switchedDay = false;
  this.switchedMonth = false;
  this.switchedYear = false;

  DateUtil.stepOverHiddenDates(this.moment, this, prev);
};

/**
 * Get the current datetime
 * @return {Moment}  current The current date
 */
TimeStep.prototype.getCurrent = function () {
  return this.current;
};

/**
 * Set a custom scale. Autoscaling will be disabled.
 * For example setScale('minute', 5) will result
 * in minor steps of 5 minutes, and major steps of an hour.
 *
 * @param {{scale: string, step: number}} params
 *                               An object containing two properties:
 *                               - A string 'scale'. Choose from 'millisecond', 'second',
 *                                 'minute', 'hour', 'weekday', 'day', 'week', 'month', 'year'.
 *                               - A number 'step'. A step size, by default 1.
 *                                 Choose for example 1, 2, 5, or 10.
 */
TimeStep.prototype.setScale = function (params) {
  if (params && typeof params.scale == 'string') {
    this.scale = params.scale;
    this.step = params.step > 0 ? params.step : 1;
    this.autoScale = false;
  }
};

/**
 * Enable or disable autoscaling
 * @param {boolean} enable  If true, autoascaling is set true
 */
TimeStep.prototype.setAutoScale = function (enable) {
  this.autoScale = enable;
};

/**
 * Automatically determine the scale that bests fits the provided minimum step
 * @param {number} [minimumStep]  The minimum step size in milliseconds
 */
TimeStep.prototype.setMinimumStep = function (minimumStep) {
  if (minimumStep == undefined) {
    return;
  }

  //var b = asc + ds;

  var stepYear = 1000 * 60 * 60 * 24 * 30 * 12;
  var stepMonth = 1000 * 60 * 60 * 24 * 30;
  var stepDay = 1000 * 60 * 60 * 24;
  var stepHour = 1000 * 60 * 60;
  var stepMinute = 1000 * 60;
  var stepSecond = 1000;
  var stepMillisecond = 1;

  // find the smallest step that is larger than the provided minimumStep
  if (stepYear * 1000 > minimumStep) {
    this.scale = 'year';this.step = 1000;
  }
  if (stepYear * 500 > minimumStep) {
    this.scale = 'year';this.step = 500;
  }
  if (stepYear * 100 > minimumStep) {
    this.scale = 'year';this.step = 100;
  }
  if (stepYear * 50 > minimumStep) {
    this.scale = 'year';this.step = 50;
  }
  if (stepYear * 10 > minimumStep) {
    this.scale = 'year';this.step = 10;
  }
  if (stepYear * 5 > minimumStep) {
    this.scale = 'year';this.step = 5;
  }
  if (stepYear > minimumStep) {
    this.scale = 'year';this.step = 1;
  }
  if (stepMonth * 3 > minimumStep) {
    this.scale = 'month';this.step = 3;
  }
  if (stepMonth > minimumStep) {
    this.scale = 'month';this.step = 1;
  }
  if (stepDay * 5 > minimumStep) {
    this.scale = 'day';this.step = 5;
  }
  if (stepDay * 2 > minimumStep) {
    this.scale = 'day';this.step = 2;
  }
  if (stepDay > minimumStep) {
    this.scale = 'day';this.step = 1;
  }
  if (stepDay / 2 > minimumStep) {
    this.scale = 'weekday';this.step = 1;
  }
  if (stepHour * 4 > minimumStep) {
    this.scale = 'hour';this.step = 4;
  }
  if (stepHour > minimumStep) {
    this.scale = 'hour';this.step = 1;
  }
  if (stepMinute * 15 > minimumStep) {
    this.scale = 'minute';this.step = 15;
  }
  if (stepMinute * 10 > minimumStep) {
    this.scale = 'minute';this.step = 10;
  }
  if (stepMinute * 5 > minimumStep) {
    this.scale = 'minute';this.step = 5;
  }
  if (stepMinute > minimumStep) {
    this.scale = 'minute';this.step = 1;
  }
  if (stepSecond * 15 > minimumStep) {
    this.scale = 'second';this.step = 15;
  }
  if (stepSecond * 10 > minimumStep) {
    this.scale = 'second';this.step = 10;
  }
  if (stepSecond * 5 > minimumStep) {
    this.scale = 'second';this.step = 5;
  }
  if (stepSecond > minimumStep) {
    this.scale = 'second';this.step = 1;
  }
  if (stepMillisecond * 200 > minimumStep) {
    this.scale = 'millisecond';this.step = 200;
  }
  if (stepMillisecond * 100 > minimumStep) {
    this.scale = 'millisecond';this.step = 100;
  }
  if (stepMillisecond * 50 > minimumStep) {
    this.scale = 'millisecond';this.step = 50;
  }
  if (stepMillisecond * 10 > minimumStep) {
    this.scale = 'millisecond';this.step = 10;
  }
  if (stepMillisecond * 5 > minimumStep) {
    this.scale = 'millisecond';this.step = 5;
  }
  if (stepMillisecond > minimumStep) {
    this.scale = 'millisecond';this.step = 1;
  }
};

/**
 * Snap a date to a rounded value.
 * The snap intervals are dependent on the current scale and step.
 * Static function
 * @param {Date} date    the date to be snapped.
 * @param {string} scale Current scale, can be 'millisecond', 'second',
 *                       'minute', 'hour', 'weekday, 'day', 'week', 'month', 'year'.
 * @param {number} step  Current step (1, 2, 4, 5, ...
 * @return {Date} snappedDate
 */
TimeStep.snap = function (date, scale, step) {
  var clone = moment(date);

  if (scale == 'year') {
    var year = clone.year() + Math.round(clone.month() / 12);
    clone.year(Math.round(year / step) * step);
    clone.month(0);
    clone.date(0);
    clone.hours(0);
    clone.minutes(0);
    clone.seconds(0);
    clone.milliseconds(0);
  } else if (scale == 'month') {
    if (clone.date() > 15) {
      clone.date(1);
      clone.add(1, 'month');
      // important: first set Date to 1, after that change the month.
    } else {
      clone.date(1);
    }

    clone.hours(0);
    clone.minutes(0);
    clone.seconds(0);
    clone.milliseconds(0);
  } else if (scale == 'week') {
    if (clone.weekday() > 2) {
      // doing it the momentjs locale aware way
      clone.weekday(0);
      clone.add(1, 'week');
    } else {
      clone.weekday(0);
    }

    clone.hours(0);
    clone.minutes(0);
    clone.seconds(0);
    clone.milliseconds(0);
  } else if (scale == 'day') {
    //noinspection FallthroughInSwitchStatementJS
    switch (step) {
      case 5:
      case 2:
        clone.hours(Math.round(clone.hours() / 24) * 24);break;
      default:
        clone.hours(Math.round(clone.hours() / 12) * 12);break;
    }
    clone.minutes(0);
    clone.seconds(0);
    clone.milliseconds(0);
  } else if (scale == 'weekday') {
    //noinspection FallthroughInSwitchStatementJS
    switch (step) {
      case 5:
      case 2:
        clone.hours(Math.round(clone.hours() / 12) * 12);break;
      default:
        clone.hours(Math.round(clone.hours() / 6) * 6);break;
    }
    clone.minutes(0);
    clone.seconds(0);
    clone.milliseconds(0);
  } else if (scale == 'hour') {
    switch (step) {
      case 4:
        clone.minutes(Math.round(clone.minutes() / 60) * 60);break;
      default:
        clone.minutes(Math.round(clone.minutes() / 30) * 30);break;
    }
    clone.seconds(0);
    clone.milliseconds(0);
  } else if (scale == 'minute') {
    //noinspection FallthroughInSwitchStatementJS
    switch (step) {
      case 15:
      case 10:
        clone.minutes(Math.round(clone.minutes() / 5) * 5);
        clone.seconds(0);
        break;
      case 5:
        clone.seconds(Math.round(clone.seconds() / 60) * 60);break;
      default:
        clone.seconds(Math.round(clone.seconds() / 30) * 30);break;
    }
    clone.milliseconds(0);
  } else if (scale == 'second') {
    //noinspection FallthroughInSwitchStatementJS
    switch (step) {
      case 15:
      case 10:
        clone.seconds(Math.round(clone.seconds() / 5) * 5);
        clone.milliseconds(0);
        break;
      case 5:
        clone.milliseconds(Math.round(clone.milliseconds() / 1000) * 1000);break;
      default:
        clone.milliseconds(Math.round(clone.milliseconds() / 500) * 500);break;
    }
  } else if (scale == 'millisecond') {
    var _step = step > 5 ? step / 2 : 1;
    clone.milliseconds(Math.round(clone.milliseconds() / _step) * _step);
  }

  return clone;
};

/**
 * Check if the current value is a major value (for example when the step
 * is DAY, a major value is each first day of the MONTH)
 * @return {boolean} true if current date is major, else false.
 */
TimeStep.prototype.isMajor = function () {
  if (this.switchedYear == true) {
    switch (this.scale) {
      case 'year':
      case 'month':
      case 'week':
      case 'weekday':
      case 'day':
      case 'hour':
      case 'minute':
      case 'second':
      case 'millisecond':
        return true;
      default:
        return false;
    }
  } else if (this.switchedMonth == true) {
    switch (this.scale) {
      case 'week':
      case 'weekday':
      case 'day':
      case 'hour':
      case 'minute':
      case 'second':
      case 'millisecond':
        return true;
      default:
        return false;
    }
  } else if (this.switchedDay == true) {
    switch (this.scale) {
      case 'millisecond':
      case 'second':
      case 'minute':
      case 'hour':
        return true;
      default:
        return false;
    }
  }

  var date = this.moment(this.current);
  switch (this.scale) {
    case 'millisecond':
      return date.milliseconds() == 0;
    case 'second':
      return date.seconds() == 0;
    case 'minute':
      return date.hours() == 0 && date.minutes() == 0;
    case 'hour':
      return date.hours() == 0;
    case 'weekday': // intentional fall through
    case 'day':
      return date.date() == 1;
    case 'week':
      return date.date() == 1;
    case 'month':
      return date.month() == 0;
    case 'year':
      return false;
    default:
      return false;
  }
};

/**
 * Returns formatted text for the minor axislabel, depending on the current
 * date and the scale. For example when scale is MINUTE, the current time is
 * formatted as "hh:mm".
 * @param {Date} [date=this.current] custom date. if not provided, current date is taken
 * @returns {String}
 */
TimeStep.prototype.getLabelMinor = function (date) {
  if (date == undefined) {
    date = this.current;
  }
  if (date instanceof Date) {
    date = this.moment(date);
  }

  if (typeof this.format.minorLabels === "function") {
    return this.format.minorLabels(date, this.scale, this.step);
  }

  var format = this.format.minorLabels[this.scale];
  // noinspection FallThroughInSwitchStatementJS
  switch (this.scale) {
    case 'week':
      if (this.isMajor() && date.weekday() !== 0) {
        return "";
      }
    default:
      // eslint-disable-line no-fallthrough
      return format && format.length > 0 ? this.moment(date).format(format) : '';
  }
};

/**
 * Returns formatted text for the major axis label, depending on the current
 * date and the scale. For example when scale is MINUTE, the major scale is
 * hours, and the hour will be formatted as "hh".
 * @param {Date} [date=this.current] custom date. if not provided, current date is taken
 * @returns {String}
 */
TimeStep.prototype.getLabelMajor = function (date) {
  if (date == undefined) {
    date = this.current;
  }
  if (date instanceof Date) {
    date = this.moment(date);
  }

  if (typeof this.format.majorLabels === "function") {
    return this.format.majorLabels(date, this.scale, this.step);
  }

  var format = this.format.majorLabels[this.scale];
  return format && format.length > 0 ? this.moment(date).format(format) : '';
};

TimeStep.prototype.getClassName = function () {
  var _moment = this.moment;
  var m = this.moment(this.current);
  var current = m.locale ? m.locale('en') : m.lang('en'); // old versions of moment have .lang() function
  var step = this.step;
  var classNames = [];

  /**
   *
   * @param {number} value
   * @returns {String}
   */
  function even(value) {
    return value / step % 2 == 0 ? ' vis-even' : ' vis-odd';
  }

  /**
   *
   * @param {Date} date
   * @returns {String}
   */
  function today(date) {
    if (date.isSame(new Date(), 'day')) {
      return ' vis-today';
    }
    if (date.isSame(_moment().add(1, 'day'), 'day')) {
      return ' vis-tomorrow';
    }
    if (date.isSame(_moment().add(-1, 'day'), 'day')) {
      return ' vis-yesterday';
    }
    return '';
  }

  /**
   *
   * @param {Date} date
   * @returns {String}
   */
  function currentWeek(date) {
    return date.isSame(new Date(), 'week') ? ' vis-current-week' : '';
  }

  /**
   *
   * @param {Date} date
   * @returns {String}
   */
  function currentMonth(date) {
    return date.isSame(new Date(), 'month') ? ' vis-current-month' : '';
  }

  /**
   *
   * @param {Date} date
   * @returns {String}
   */
  function currentYear(date) {
    return date.isSame(new Date(), 'year') ? ' vis-current-year' : '';
  }

  switch (this.scale) {
    case 'millisecond':
      classNames.push(today(current));
      classNames.push(even(current.milliseconds()));
      break;
    case 'second':
      classNames.push(today(current));
      classNames.push(even(current.seconds()));
      break;
    case 'minute':
      classNames.push(today(current));
      classNames.push(even(current.minutes()));
      break;
    case 'hour':
      classNames.push('vis-h' + current.hours() + (this.step == 4 ? '-h' + (current.hours() + 4) : ''));
      classNames.push(today(current));
      classNames.push(even(current.hours()));
      break;
    case 'weekday':
      classNames.push('vis-' + current.format('dddd').toLowerCase());
      classNames.push(today(current));
      classNames.push(currentWeek(current));
      classNames.push(even(current.date()));
      break;
    case 'day':
      classNames.push('vis-day' + current.date());
      classNames.push('vis-' + current.format('MMMM').toLowerCase());
      classNames.push(today(current));
      classNames.push(currentMonth(current));
      classNames.push(this.step <= 2 ? today(current) : '');
      classNames.push(this.step <= 2 ? 'vis-' + current.format('dddd').toLowerCase() : '');
      classNames.push(even(current.date() - 1));
      break;
    case 'week':
      classNames.push('vis-week' + current.format('w'));
      classNames.push(currentWeek(current));
      classNames.push(even(current.week()));
      break;
    case 'month':
      classNames.push('vis-' + current.format('MMMM').toLowerCase());
      classNames.push(currentMonth(current));
      classNames.push(even(current.month()));
      break;
    case 'year':
      classNames.push('vis-year' + current.year());
      classNames.push(currentYear(current));
      classNames.push(even(current.year()));
      break;
  }
  return classNames.filter(String).join(" ");
};

module.exports = TimeStep;

/***/ }),
/* 67 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var util = __webpack_require__(2);
var Component = __webpack_require__(16);
var moment = __webpack_require__(9);
var locales = __webpack_require__(98);

/**
 * A current time bar
 * @param {{range: Range, dom: Object, domProps: Object}} body
 * @param {Object} [options]        Available parameters:
 *                                  {Boolean} [showCurrentTime]
 * @constructor CurrentTime
 * @extends Component
 */
function CurrentTime(body, options) {
  this.body = body;

  // default options
  this.defaultOptions = {
    rtl: false,
    showCurrentTime: true,

    moment: moment,
    locales: locales,
    locale: 'en'
  };
  this.options = util.extend({}, this.defaultOptions);
  this.offset = 0;

  this._create();

  this.setOptions(options);
}

CurrentTime.prototype = new Component();

/**
 * Create the HTML DOM for the current time bar
 * @private
 */
CurrentTime.prototype._create = function () {
  var bar = document.createElement('div');
  bar.className = 'vis-current-time';
  bar.style.position = 'absolute';
  bar.style.top = '0px';
  bar.style.height = '100%';

  this.bar = bar;
};

/**
 * Destroy the CurrentTime bar
 */
CurrentTime.prototype.destroy = function () {
  this.options.showCurrentTime = false;
  this.redraw(); // will remove the bar from the DOM and stop refreshing

  this.body = null;
};

/**
 * Set options for the component. Options will be merged in current options.
 * @param {Object} options  Available parameters:
 *                          {boolean} [showCurrentTime]
 */
CurrentTime.prototype.setOptions = function (options) {
  if (options) {
    // copy all options that we know
    util.selectiveExtend(['rtl', 'showCurrentTime', 'moment', 'locale', 'locales'], this.options, options);
  }
};

/**
 * Repaint the component
 * @return {boolean} Returns true if the component is resized
 */
CurrentTime.prototype.redraw = function () {
  if (this.options.showCurrentTime) {
    var parent = this.body.dom.backgroundVertical;
    if (this.bar.parentNode != parent) {
      // attach to the dom
      if (this.bar.parentNode) {
        this.bar.parentNode.removeChild(this.bar);
      }
      parent.appendChild(this.bar);

      this.start();
    }

    var now = this.options.moment(new Date().valueOf() + this.offset);
    var x = this.body.util.toScreen(now);

    var locale = this.options.locales[this.options.locale];
    if (!locale) {
      if (!this.warned) {
        console.log('WARNING: options.locales[\'' + this.options.locale + '\'] not found. See http://visjs.org/docs/timeline/#Localization');
        this.warned = true;
      }
      locale = this.options.locales['en']; // fall back on english when not available
    }
    var title = locale.current + ' ' + locale.time + ': ' + now.format('dddd, MMMM Do YYYY, H:mm:ss');
    title = title.charAt(0).toUpperCase() + title.substring(1);

    if (this.options.rtl) {
      this.bar.style.right = x + 'px';
    } else {
      this.bar.style.left = x + 'px';
    }
    this.bar.title = title;
  } else {
    // remove the line from the DOM
    if (this.bar.parentNode) {
      this.bar.parentNode.removeChild(this.bar);
    }
    this.stop();
  }

  return false;
};

/**
 * Start auto refreshing the current time bar
 */
CurrentTime.prototype.start = function () {
  var me = this;

  /**
   *  Updates the current time.
   */
  function update() {
    me.stop();

    // determine interval to refresh
    var scale = me.body.range.conversion(me.body.domProps.center.width).scale;
    var interval = 1 / scale / 10;
    if (interval < 30) interval = 30;
    if (interval > 1000) interval = 1000;

    me.redraw();
    me.body.emitter.emit('currentTimeTick');

    // start a renderTimer to adjust for the new time
    me.currentTimeTimer = setTimeout(update, interval);
  }

  update();
};

/**
 * Stop auto refreshing the current time bar
 */
CurrentTime.prototype.stop = function () {
  if (this.currentTimeTimer !== undefined) {
    clearTimeout(this.currentTimeTimer);
    delete this.currentTimeTimer;
  }
};

/**
 * Set a current time. This can be used for example to ensure that a client's
 * time is synchronized with a shared server time.
 * @param {Date | string | number} time     A Date, unix timestamp, or
 *                                          ISO date string.
 */
CurrentTime.prototype.setCurrentTime = function (time) {
  var t = util.convert(time, 'Date').valueOf();
  var now = new Date().valueOf();
  this.offset = t - now;
  this.redraw();
};

/**
 * Get the current time.
 * @return {Date} Returns the current time.
 */
CurrentTime.prototype.getCurrentTime = function () {
  return new Date(new Date().valueOf() + this.offset);
};

module.exports = CurrentTime;

/***/ }),
/* 68 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _keys = __webpack_require__(8);

var _keys2 = _interopRequireDefault(_keys);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var stack = __webpack_require__(100);

/**
 * @param {number | string} groupId
 * @param {Object} data
 * @param {ItemSet} itemSet
 * @constructor Group
 */
function Group(groupId, data, itemSet) {
  this.groupId = groupId;
  this.subgroups = {};
  this.subgroupStack = {};
  this.subgroupStackAll = false;
  this.doInnerStack = false;
  this.subgroupIndex = 0;
  this.subgroupOrderer = data && data.subgroupOrder;
  this.itemSet = itemSet;
  this.isVisible = null;
  this.stackDirty = true; // if true, items will be restacked on next redraw

  if (data && data.nestedGroups) {
    this.nestedGroups = data.nestedGroups;
    if (data.showNested == false) {
      this.showNested = false;
    } else {
      this.showNested = true;
    }
  }

  if (data && data.subgroupStack) {
    if (typeof data.subgroupStack === "boolean") {
      this.doInnerStack = data.subgroupStack;
      this.subgroupStackAll = data.subgroupStack;
    } else {
      // We might be doing stacking on specific sub groups, but only
      // if at least one is set to do stacking
      for (var key in data.subgroupStack) {
        this.subgroupStack[key] = data.subgroupStack[key];
        this.doInnerStack = this.doInnerStack || data.subgroupStack[key];
      }
    }
  }

  this.nestedInGroup = null;

  this.dom = {};
  this.props = {
    label: {
      width: 0,
      height: 0
    }
  };
  this.className = null;

  this.items = {}; // items filtered by groupId of this group
  this.visibleItems = []; // items currently visible in window
  this.itemsInRange = []; // items currently in range
  this.orderedItems = {
    byStart: [],
    byEnd: []
  };
  this.checkRangedItems = false; // needed to refresh the ranged items if the window is programatically changed with NO overlap.
  var me = this;
  this.itemSet.body.emitter.on("checkRangedItems", function () {
    me.checkRangedItems = true;
  });

  this._create();

  this.setData(data);
}

/**
 * Create DOM elements for the group
 * @private
 */
Group.prototype._create = function () {
  var label = document.createElement('div');
  if (this.itemSet.options.groupEditable.order) {
    label.className = 'vis-label draggable';
  } else {
    label.className = 'vis-label';
  }
  this.dom.label = label;

  var inner = document.createElement('div');
  inner.className = 'vis-inner';
  label.appendChild(inner);
  this.dom.inner = inner;

  var foreground = document.createElement('div');
  foreground.className = 'vis-group';
  foreground['timeline-group'] = this;
  this.dom.foreground = foreground;

  this.dom.background = document.createElement('div');
  this.dom.background.className = 'vis-group';

  this.dom.axis = document.createElement('div');
  this.dom.axis.className = 'vis-group';

  // create a hidden marker to detect when the Timelines container is attached
  // to the DOM, or the style of a parent of the Timeline is changed from
  // display:none is changed to visible.
  this.dom.marker = document.createElement('div');
  this.dom.marker.style.visibility = 'hidden';
  this.dom.marker.style.position = 'absolute';
  this.dom.marker.innerHTML = '';
  this.dom.background.appendChild(this.dom.marker);
};

/**
 * Set the group data for this group
 * @param {Object} data   Group data, can contain properties content and className
 */
Group.prototype.setData = function (data) {
  // update contents
  var content;
  var templateFunction;

  if (this.itemSet.options && this.itemSet.options.groupTemplate) {
    templateFunction = this.itemSet.options.groupTemplate.bind(this);
    content = templateFunction(data, this.dom.inner);
  } else {
    content = data && data.content;
  }

  if (content instanceof Element) {
    this.dom.inner.appendChild(content);
    while (this.dom.inner.firstChild) {
      this.dom.inner.removeChild(this.dom.inner.firstChild);
    }
    this.dom.inner.appendChild(content);
  } else if (content instanceof Object) {
    templateFunction(data, this.dom.inner);
  } else if (content !== undefined && content !== null) {
    this.dom.inner.innerHTML = content;
  } else {
    this.dom.inner.innerHTML = this.groupId || ''; // groupId can be null
  }

  // update title
  this.dom.label.title = data && data.title || '';
  if (!this.dom.inner.firstChild) {
    util.addClassName(this.dom.inner, 'vis-hidden');
  } else {
    util.removeClassName(this.dom.inner, 'vis-hidden');
  }

  if (data && data.nestedGroups) {
    if (!this.nestedGroups || this.nestedGroups != data.nestedGroups) {
      this.nestedGroups = data.nestedGroups;
    }

    if (data.showNested !== undefined || this.showNested === undefined) {
      if (data.showNested == false) {
        this.showNested = false;
      } else {
        this.showNested = true;
      }
    }

    util.addClassName(this.dom.label, 'vis-nesting-group');
    var collapsedDirClassName = this.itemSet.options.rtl ? 'collapsed-rtl' : 'collapsed';
    if (this.showNested) {
      util.removeClassName(this.dom.label, collapsedDirClassName);
      util.addClassName(this.dom.label, 'expanded');
    } else {
      util.removeClassName(this.dom.label, 'expanded');
      util.addClassName(this.dom.label, collapsedDirClassName);
    }
  } else if (this.nestedGroups) {
    this.nestedGroups = null;
    collapsedDirClassName = this.itemSet.options.rtl ? 'collapsed-rtl' : 'collapsed';
    util.removeClassName(this.dom.label, collapsedDirClassName);
    util.removeClassName(this.dom.label, 'expanded');
    util.removeClassName(this.dom.label, 'vis-nesting-group');
  }

  if (data && data.nestedInGroup) {
    util.addClassName(this.dom.label, 'vis-nested-group');
    if (this.itemSet.options && this.itemSet.options.rtl) {
      this.dom.inner.style.paddingRight = '30px';
    } else {
      this.dom.inner.style.paddingLeft = '30px';
    }
  }

  // update className
  var className = data && data.className || null;
  if (className != this.className) {
    if (this.className) {
      util.removeClassName(this.dom.label, this.className);
      util.removeClassName(this.dom.foreground, this.className);
      util.removeClassName(this.dom.background, this.className);
      util.removeClassName(this.dom.axis, this.className);
    }
    util.addClassName(this.dom.label, className);
    util.addClassName(this.dom.foreground, className);
    util.addClassName(this.dom.background, className);
    util.addClassName(this.dom.axis, className);
    this.className = className;
  }

  // update style
  if (this.style) {
    util.removeCssText(this.dom.label, this.style);
    this.style = null;
  }
  if (data && data.style) {
    util.addCssText(this.dom.label, data.style);
    this.style = data.style;
  }
};

/**
 * Get the width of the group label
 * @return {number} width
 */
Group.prototype.getLabelWidth = function () {
  return this.props.label.width;
};

Group.prototype._didMarkerHeightChange = function () {
  var markerHeight = this.dom.marker.clientHeight;
  if (markerHeight != this.lastMarkerHeight) {
    this.lastMarkerHeight = markerHeight;
    var redrawQueue = {};
    var redrawQueueLength = 0;

    util.forEach(this.items, function (item, key) {
      item.dirty = true;
      if (item.displayed) {
        var returnQueue = true;
        redrawQueue[key] = item.redraw(returnQueue);
        redrawQueueLength = redrawQueue[key].length;
      }
    });

    var needRedraw = redrawQueueLength > 0;
    if (needRedraw) {
      // redraw all regular items
      for (var i = 0; i < redrawQueueLength; i++) {
        util.forEach(redrawQueue, function (fns) {
          fns[i]();
        });
      }
    }
    return true;
  }
};

Group.prototype._calculateGroupSizeAndPosition = function () {
  var offsetTop = this.dom.foreground.offsetTop;
  var offsetLeft = this.dom.foreground.offsetLeft;
  var offsetWidth = this.dom.foreground.offsetWidth;
  this.top = offsetTop;
  this.right = offsetLeft;
  this.width = offsetWidth;
};

Group.prototype._redrawItems = function (forceRestack, lastIsVisible, margin, range) {
  var restack = forceRestack || this.stackDirty || this.isVisible && !lastIsVisible;

  // if restacking, reposition visible items vertically
  if (restack) {
    var visibleSubgroups = {};
    var subgroup = null;

    if (typeof this.itemSet.options.order === 'function') {
      // a custom order function
      // brute force restack of all items

      // show all items
      var me = this;
      var limitSize = false;

      var redrawQueue = {};
      var redrawQueueLength = 0;

      util.forEach(this.items, function (item, key) {
        if (!item.displayed) {
          var returnQueue = true;
          redrawQueue[key] = item.redraw(returnQueue);
          redrawQueueLength = redrawQueue[key].length;
          me.visibleItems.push(item);
        }
      });

      var needRedraw = redrawQueueLength > 0;
      if (needRedraw) {
        // redraw all regular items
        for (var i = 0; i < redrawQueueLength; i++) {
          util.forEach(redrawQueue, function (fns) {
            fns[i]();
          });
        }
      }

      util.forEach(this.items, function (item) {
        item.repositionX(limitSize);
      });

      if (this.doInnerStack && this.itemSet.options.stackSubgroups) {
        // Order the items within each subgroup
        for (subgroup in this.subgroups) {
          visibleSubgroups[subgroup] = this.subgroups[subgroup].items.slice().sort(function (a, b) {
            return me.itemSet.options.order(a.data, b.data);
          });
        }

        stack.stackSubgroupsWithInnerStack(visibleSubgroups, margin, this.subgroups);
      } else {
        // order all items and force a restacking
        var customOrderedItems = this.orderedItems.byStart.slice().sort(function (a, b) {
          return me.itemSet.options.order(a.data, b.data);
        });
        stack.stack(customOrderedItems, margin, true /* restack=true */);
      }

      this.visibleItems = this._updateItemsInRange(this.orderedItems, this.visibleItems, range);
    } else {
      // no custom order function, lazy stacking
      this.visibleItems = this._updateItemsInRange(this.orderedItems, this.visibleItems, range);

      if (this.itemSet.options.stack) {
        if (this.doInnerStack && this.itemSet.options.stackSubgroups) {
          for (subgroup in this.subgroups) {
            visibleSubgroups[subgroup] = this.subgroups[subgroup].items;
          }

          stack.stackSubgroupsWithInnerStack(visibleSubgroups, margin, this.subgroups);
        } else {
          // TODO: ugly way to access options...
          stack.stack(this.visibleItems, margin, true /* restack=true */);
        }
      } else {
        // no stacking
        stack.nostack(this.visibleItems, margin, this.subgroups, this.itemSet.options.stackSubgroups);
      }
    }

    this.stackDirty = false;
  }
};

Group.prototype._didResize = function (resized, height) {
  resized = util.updateProperty(this, 'height', height) || resized;
  // recalculate size of label
  var labelWidth = this.dom.inner.clientWidth;
  var labelHeight = this.dom.inner.clientHeight;
  resized = util.updateProperty(this.props.label, 'width', labelWidth) || resized;
  resized = util.updateProperty(this.props.label, 'height', labelHeight) || resized;
  return resized;
};

Group.prototype._applyGroupHeight = function (height) {
  this.dom.background.style.height = height + 'px';
  this.dom.foreground.style.height = height + 'px';
  this.dom.label.style.height = height + 'px';
};

// update vertical position of items after they are re-stacked and the height of the group is calculated
Group.prototype._updateItemsVerticalPosition = function (margin) {
  for (var i = 0, ii = this.visibleItems.length; i < ii; i++) {
    var item = this.visibleItems[i];
    item.repositionY(margin);
    if (!this.isVisible && this.groupId != "__background__") {
      if (item.displayed) item.hide();
    }
  }
};

/**
 * Repaint this group
 * @param {{start: number, end: number}} range
 * @param {{item: {horizontal: number, vertical: number}, axis: number}} margin
 * @param {boolean} [forceRestack=false]  Force restacking of all items
 * @param {boolean} [returnQueue=false]  return the queue or if the group resized
 * @return {boolean} Returns true if the group is resized or the redraw queue if returnQueue=true
 */
Group.prototype.redraw = function (range, margin, forceRestack, returnQueue) {
  var resized = false;
  var lastIsVisible = this.isVisible;
  var height;

  var queue = [
  // force recalculation of the height of the items when the marker height changed
  // (due to the Timeline being attached to the DOM or changed from display:none to visible)
  function () {
    forceRestack = this._didMarkerHeightChange.bind(this);
  }.bind(this),

  // recalculate the height of the subgroups
  this._updateSubGroupHeights.bind(this, margin),

  // calculate actual size and position
  this._calculateGroupSizeAndPosition.bind(this),

  // check if group is visible
  function () {
    this.isVisible = this._isGroupVisible.bind(this)(range, margin);
  }.bind(this),

  // redraw Items if needed
  function () {
    this._redrawItems.bind(this)(forceRestack, lastIsVisible, margin, range);
  }.bind(this),

  // update subgroups
  this._updateSubgroupsSizes.bind(this),

  // recalculate the height of the group
  function () {
    height = this._calculateHeight.bind(this)(margin);
  }.bind(this),

  // calculate actual size and position again
  this._calculateGroupSizeAndPosition.bind(this),

  // check if resized
  function () {
    resized = this._didResize.bind(this)(resized, height);
  }.bind(this),

  // apply group height
  function () {
    this._applyGroupHeight.bind(this)(height);
  }.bind(this),

  // update vertical position of items after they are re-stacked and the height of the group is calculated
  function () {
    this._updateItemsVerticalPosition.bind(this)(margin);
  }.bind(this), function () {
    if (!this.isVisible && this.height) {
      resized = false;
    }
    return resized;
  }];

  if (returnQueue) {
    return queue;
  } else {
    var result;
    queue.forEach(function (fn) {
      result = fn();
    });
    return result;
  }
};

/**
 * recalculate the height of the subgroups
 *
 * @param {{item: vis.Item}} margin
 * @private
 */
Group.prototype._updateSubGroupHeights = function (margin) {
  if ((0, _keys2['default'])(this.subgroups).length > 0) {
    var me = this;

    this.resetSubgroups();

    util.forEach(this.visibleItems, function (item) {
      if (item.data.subgroup !== undefined) {
        me.subgroups[item.data.subgroup].height = Math.max(me.subgroups[item.data.subgroup].height, item.height + margin.item.vertical);
        me.subgroups[item.data.subgroup].visible = true;
      }
    });
  }
};

/**
 * check if group is visible
 *
 * @param {vis.Range} range
 * @param {{axis: vis.DataAxis}} margin
 * @returns {boolean} is visible
 * @private
 */
Group.prototype._isGroupVisible = function (range, margin) {
  return this.top <= range.body.domProps.centerContainer.height - range.body.domProps.scrollTop + margin.axis && this.top + this.height + margin.axis >= -range.body.domProps.scrollTop;
};

/**
 * recalculate the height of the group
 * @param {{item: {horizontal: number, vertical: number}, axis: number}} margin
 * @returns {number} Returns the height
 * @private
 */
Group.prototype._calculateHeight = function (margin) {
  // recalculate the height of the group
  var height;
  var itemsInRange = this.visibleItems;
  if (itemsInRange.length > 0) {
    var min = itemsInRange[0].top;
    var max = itemsInRange[0].top + itemsInRange[0].height;
    util.forEach(itemsInRange, function (item) {
      min = Math.min(min, item.top);
      max = Math.max(max, item.top + item.height);
    });
    if (min > margin.axis) {
      // there is an empty gap between the lowest item and the axis
      var offset = min - margin.axis;
      max -= offset;
      util.forEach(itemsInRange, function (item) {
        item.top -= offset;
      });
    }
    height = max + margin.item.vertical / 2;
  } else {
    height = 0;
  }
  height = Math.max(height, this.props.label.height);

  return height;
};

/**
 * Show this group: attach to the DOM
 */
Group.prototype.show = function () {
  if (!this.dom.label.parentNode) {
    this.itemSet.dom.labelSet.appendChild(this.dom.label);
  }

  if (!this.dom.foreground.parentNode) {
    this.itemSet.dom.foreground.appendChild(this.dom.foreground);
  }

  if (!this.dom.background.parentNode) {
    this.itemSet.dom.background.appendChild(this.dom.background);
  }

  if (!this.dom.axis.parentNode) {
    this.itemSet.dom.axis.appendChild(this.dom.axis);
  }
};

/**
 * Hide this group: remove from the DOM
 */
Group.prototype.hide = function () {
  var label = this.dom.label;
  if (label.parentNode) {
    label.parentNode.removeChild(label);
  }

  var foreground = this.dom.foreground;
  if (foreground.parentNode) {
    foreground.parentNode.removeChild(foreground);
  }

  var background = this.dom.background;
  if (background.parentNode) {
    background.parentNode.removeChild(background);
  }

  var axis = this.dom.axis;
  if (axis.parentNode) {
    axis.parentNode.removeChild(axis);
  }
};

/**
 * Add an item to the group
 * @param {Item} item
 */
Group.prototype.add = function (item) {
  this.items[item.id] = item;
  item.setParent(this);
  this.stackDirty = true;
  // add to
  if (item.data.subgroup !== undefined) {
    this._addToSubgroup(item);
    this.orderSubgroups();
  }

  if (this.visibleItems.indexOf(item) == -1) {
    var range = this.itemSet.body.range; // TODO: not nice accessing the range like this
    this._checkIfVisible(item, this.visibleItems, range);
  }
};

Group.prototype._addToSubgroup = function (item, subgroupId) {
  subgroupId = subgroupId || item.data.subgroup;
  if (subgroupId != undefined && this.subgroups[subgroupId] === undefined) {
    this.subgroups[subgroupId] = {
      height: 0,
      top: 0,
      start: item.data.start,
      end: item.data.end || item.data.start,
      visible: false,
      index: this.subgroupIndex,
      items: [],
      stack: this.subgroupStackAll || this.subgroupStack[subgroupId] || false
    };
    this.subgroupIndex++;
  }

  if (new Date(item.data.start) < new Date(this.subgroups[subgroupId].start)) {
    this.subgroups[subgroupId].start = item.data.start;
  }

  var itemEnd = item.data.end || item.data.start;
  if (new Date(itemEnd) > new Date(this.subgroups[subgroupId].end)) {
    this.subgroups[subgroupId].end = itemEnd;
  }

  this.subgroups[subgroupId].items.push(item);
};

Group.prototype._updateSubgroupsSizes = function () {
  var me = this;
  if (me.subgroups) {
    for (var subgroup in me.subgroups) {
      var initialEnd = me.subgroups[subgroup].items[0].data.end || me.subgroups[subgroup].items[0].data.start;
      var newStart = me.subgroups[subgroup].items[0].data.start;
      var newEnd = initialEnd - 1;

      me.subgroups[subgroup].items.forEach(function (item) {
        if (new Date(item.data.start) < new Date(newStart)) {
          newStart = item.data.start;
        }

        var itemEnd = item.data.end || item.data.start;
        if (new Date(itemEnd) > new Date(newEnd)) {
          newEnd = itemEnd;
        }
      });

      me.subgroups[subgroup].start = newStart;
      me.subgroups[subgroup].end = new Date(newEnd - 1); // -1 to compensate for colliding end to start subgroups;
    }
  }
};

Group.prototype.orderSubgroups = function () {
  if (this.subgroupOrderer !== undefined) {
    var sortArray = [];
    var subgroup;
    if (typeof this.subgroupOrderer == 'string') {
      for (subgroup in this.subgroups) {
        sortArray.push({ subgroup: subgroup, sortField: this.subgroups[subgroup].items[0].data[this.subgroupOrderer] });
      }
      sortArray.sort(function (a, b) {
        return a.sortField - b.sortField;
      });
    } else if (typeof this.subgroupOrderer == 'function') {
      for (subgroup in this.subgroups) {
        sortArray.push(this.subgroups[subgroup].items[0].data);
      }
      sortArray.sort(this.subgroupOrderer);
    }

    if (sortArray.length > 0) {
      for (var i = 0; i < sortArray.length; i++) {
        this.subgroups[sortArray[i].subgroup].index = i;
      }
    }
  }
};

Group.prototype.resetSubgroups = function () {
  for (var subgroup in this.subgroups) {
    if (this.subgroups.hasOwnProperty(subgroup)) {
      this.subgroups[subgroup].visible = false;
      this.subgroups[subgroup].height = 0;
    }
  }
};

/**
 * Remove an item from the group
 * @param {Item} item
 */
Group.prototype.remove = function (item) {
  delete this.items[item.id];
  item.setParent(null);
  this.stackDirty = true;

  // remove from visible items
  var index = this.visibleItems.indexOf(item);
  if (index != -1) this.visibleItems.splice(index, 1);

  if (item.data.subgroup !== undefined) {
    this._removeFromSubgroup(item);
    this.orderSubgroups();
  }
};

Group.prototype._removeFromSubgroup = function (item, subgroupId) {
  subgroupId = subgroupId || item.data.subgroup;
  if (subgroupId != undefined) {
    var subgroup = this.subgroups[subgroupId];
    if (subgroup) {
      var itemIndex = subgroup.items.indexOf(item);
      //  Check the item is actually in this subgroup. How should items not in the group be handled?
      if (itemIndex >= 0) {
        subgroup.items.splice(itemIndex, 1);
        if (!subgroup.items.length) {
          delete this.subgroups[subgroupId];
        } else {
          this._updateSubgroupsSizes();
        }
      }
    }
  }
};

/**
 * Remove an item from the corresponding DataSet
 * @param {Item} item
 */
Group.prototype.removeFromDataSet = function (item) {
  this.itemSet.removeItem(item.id);
};

/**
 * Reorder the items
 */
Group.prototype.order = function () {
  var array = util.toArray(this.items);
  var startArray = [];
  var endArray = [];

  for (var i = 0; i < array.length; i++) {
    if (array[i].data.end !== undefined) {
      endArray.push(array[i]);
    }
    startArray.push(array[i]);
  }
  this.orderedItems = {
    byStart: startArray,
    byEnd: endArray
  };

  stack.orderByStart(this.orderedItems.byStart);
  stack.orderByEnd(this.orderedItems.byEnd);
};

/**
 * Update the visible items
 * @param {{byStart: Item[], byEnd: Item[]}} orderedItems   All items ordered by start date and by end date
 * @param {Item[]} oldVisibleItems                          The previously visible items.
 * @param {{start: number, end: number}} range              Visible range
 * @return {Item[]} visibleItems                            The new visible items.
 * @private
 */
Group.prototype._updateItemsInRange = function (orderedItems, oldVisibleItems, range) {
  var visibleItems = [];
  var visibleItemsLookup = {}; // we keep this to quickly look up if an item already exists in the list without using indexOf on visibleItems

  var interval = (range.end - range.start) / 4;
  var lowerBound = range.start - interval;
  var upperBound = range.end + interval;

  // this function is used to do the binary search.
  var searchFunction = function searchFunction(value) {
    if (value < lowerBound) {
      return -1;
    } else if (value <= upperBound) {
      return 0;
    } else {
      return 1;
    }
  };

  // first check if the items that were in view previously are still in view.
  // IMPORTANT: this handles the case for the items with startdate before the window and enddate after the window!
  // also cleans up invisible items.
  if (oldVisibleItems.length > 0) {
    for (var i = 0; i < oldVisibleItems.length; i++) {
      this._checkIfVisibleWithReference(oldVisibleItems[i], visibleItems, visibleItemsLookup, range);
    }
  }

  // we do a binary search for the items that have only start values.
  var initialPosByStart = util.binarySearchCustom(orderedItems.byStart, searchFunction, 'data', 'start');

  // trace the visible items from the inital start pos both ways until an invisible item is found, we only look at the start values.
  this._traceVisible(initialPosByStart, orderedItems.byStart, visibleItems, visibleItemsLookup, function (item) {
    return item.data.start < lowerBound || item.data.start > upperBound;
  });

  // if the window has changed programmatically without overlapping the old window, the ranged items with start < lowerBound and end > upperbound are not shown.
  // We therefore have to brute force check all items in the byEnd list
  if (this.checkRangedItems == true) {
    this.checkRangedItems = false;
    for (i = 0; i < orderedItems.byEnd.length; i++) {
      this._checkIfVisibleWithReference(orderedItems.byEnd[i], visibleItems, visibleItemsLookup, range);
    }
  } else {
    // we do a binary search for the items that have defined end times.
    var initialPosByEnd = util.binarySearchCustom(orderedItems.byEnd, searchFunction, 'data', 'end');

    // trace the visible items from the inital start pos both ways until an invisible item is found, we only look at the end values.
    this._traceVisible(initialPosByEnd, orderedItems.byEnd, visibleItems, visibleItemsLookup, function (item) {
      return item.data.end < lowerBound || item.data.end > upperBound;
    });
  }

  var redrawQueue = {};
  var redrawQueueLength = 0;

  for (i = 0; i < visibleItems.length; i++) {
    var item = visibleItems[i];
    if (!item.displayed) {
      var returnQueue = true;
      redrawQueue[i] = item.redraw(returnQueue);
      redrawQueueLength = redrawQueue[i].length;
    }
  }

  var needRedraw = redrawQueueLength > 0;
  if (needRedraw) {
    // redraw all regular items
    for (var j = 0; j < redrawQueueLength; j++) {
      util.forEach(redrawQueue, function (fns) {
        fns[j]();
      });
    }
  }

  for (i = 0; i < visibleItems.length; i++) {
    visibleItems[i].repositionX();
  }
  return visibleItems;
};

Group.prototype._traceVisible = function (initialPos, items, visibleItems, visibleItemsLookup, breakCondition) {
  if (initialPos != -1) {
    var i, item;
    for (i = initialPos; i >= 0; i--) {
      item = items[i];
      if (breakCondition(item)) {
        break;
      } else {
        if (visibleItemsLookup[item.id] === undefined) {
          visibleItemsLookup[item.id] = true;
          visibleItems.push(item);
        }
      }
    }

    for (i = initialPos + 1; i < items.length; i++) {
      item = items[i];
      if (breakCondition(item)) {
        break;
      } else {
        if (visibleItemsLookup[item.id] === undefined) {
          visibleItemsLookup[item.id] = true;
          visibleItems.push(item);
        }
      }
    }
  }
};

/**
 * this function is very similar to the _checkIfInvisible() but it does not
 * return booleans, hides the item if it should not be seen and always adds to
 * the visibleItems.
 * this one is for brute forcing and hiding.
 *
 * @param {Item} item
 * @param {Array} visibleItems
 * @param {{start:number, end:number}} range
 * @private
 */
Group.prototype._checkIfVisible = function (item, visibleItems, range) {
  if (item.isVisible(range)) {
    if (!item.displayed) item.show();
    // reposition item horizontally
    item.repositionX();
    visibleItems.push(item);
  } else {
    if (item.displayed) item.hide();
  }
};

/**
 * this function is very similar to the _checkIfInvisible() but it does not
 * return booleans, hides the item if it should not be seen and always adds to
 * the visibleItems.
 * this one is for brute forcing and hiding.
 *
 * @param {Item} item
 * @param {Array.<vis.Item>} visibleItems
 * @param {Object<number, boolean>} visibleItemsLookup
 * @param {{start:number, end:number}} range
 * @private
 */
Group.prototype._checkIfVisibleWithReference = function (item, visibleItems, visibleItemsLookup, range) {
  if (item.isVisible(range)) {
    if (visibleItemsLookup[item.id] === undefined) {
      visibleItemsLookup[item.id] = true;
      visibleItems.push(item);
    }
  } else {
    if (item.displayed) item.hide();
  }
};

Group.prototype.changeSubgroup = function (item, oldSubgroup, newSubgroup) {
  this._removeFromSubgroup(item, oldSubgroup);
  this._addToSubgroup(item, newSubgroup);
  this.orderSubgroups();
};

module.exports = Group;

/***/ }),
/* 69 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _create = __webpack_require__(29);

var _create2 = _interopRequireDefault(_create);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var Group = __webpack_require__(68);

/**
 * @constructor BackgroundGroup
 * @param {number | string} groupId
 * @param {Object} data
 * @param {ItemSet} itemSet
 * @extends Group
 */
function BackgroundGroup(groupId, data, itemSet) {
  Group.call(this, groupId, data, itemSet);

  this.width = 0;
  this.height = 0;
  this.top = 0;
  this.left = 0;
}

BackgroundGroup.prototype = (0, _create2['default'])(Group.prototype);

/**
 * Repaint this group
 * @param {{start: number, end: number}} range
 * @param {{item: {horizontal: number, vertical: number}, axis: number}} margin
 * @param {boolean} [forceRestack=false]  Force restacking of all items
 * @return {boolean} Returns true if the group is resized
 */
BackgroundGroup.prototype.redraw = function (range, margin, forceRestack) {
  // eslint-disable-line no-unused-vars
  var resized = false;

  this.visibleItems = this._updateItemsInRange(this.orderedItems, this.visibleItems, range);

  // calculate actual size
  this.width = this.dom.background.offsetWidth;

  // apply new height (just always zero for BackgroundGroup
  this.dom.background.style.height = '0';

  // update vertical position of items after they are re-stacked and the height of the group is calculated
  for (var i = 0, ii = this.visibleItems.length; i < ii; i++) {
    var item = this.visibleItems[i];
    item.repositionY(margin);
  }

  return resized;
};

/**
 * Show this group: attach to the DOM
 */
BackgroundGroup.prototype.show = function () {
  if (!this.dom.background.parentNode) {
    this.itemSet.dom.background.appendChild(this.dom.background);
  }
};

module.exports = BackgroundGroup;

/***/ }),
/* 70 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var Item = __webpack_require__(38);

/**
 * @constructor RangeItem
 * @extends Item
 * @param {Object} data             Object containing parameters start, end
 *                                  content, className.
 * @param {{toScreen: function, toTime: function}} conversion
 *                                  Conversion functions from time to screen and vice versa
 * @param {Object} [options]        Configuration options
 *                                  // TODO: describe options
 */
function RangeItem(data, conversion, options) {
  this.props = {
    content: {
      width: 0
    }
  };
  this.overflow = false; // if contents can overflow (css styling), this flag is set to true
  this.options = options;
  // validate data
  if (data) {
    if (data.start == undefined) {
      throw new Error('Property "start" missing in item ' + data.id);
    }
    if (data.end == undefined) {
      throw new Error('Property "end" missing in item ' + data.id);
    }
  }

  Item.call(this, data, conversion, options);
}

RangeItem.prototype = new Item(null, null, null);

RangeItem.prototype.baseClassName = 'vis-item vis-range';

/**
 * Check whether this item is visible inside given range
 *
 * @param {vis.Range} range with a timestamp for start and end
 * @returns {boolean} True if visible
 */
RangeItem.prototype.isVisible = function (range) {
  // determine visibility
  return this.data.start < range.end && this.data.end > range.start;
};

RangeItem.prototype._createDomElement = function () {
  if (!this.dom) {
    // create DOM
    this.dom = {};

    // background box
    this.dom.box = document.createElement('div');
    // className is updated in redraw()

    // frame box (to prevent the item contents from overflowing)
    this.dom.frame = document.createElement('div');
    this.dom.frame.className = 'vis-item-overflow';
    this.dom.box.appendChild(this.dom.frame);

    // visible frame box (showing the frame that is always visible)
    this.dom.visibleFrame = document.createElement('div');
    this.dom.visibleFrame.className = 'vis-item-visible-frame';
    this.dom.box.appendChild(this.dom.visibleFrame);

    // contents box
    this.dom.content = document.createElement('div');
    this.dom.content.className = 'vis-item-content';
    this.dom.frame.appendChild(this.dom.content);

    // attach this item as attribute
    this.dom.box['timeline-item'] = this;

    this.dirty = true;
  }
};

RangeItem.prototype._appendDomElement = function () {
  if (!this.parent) {
    throw new Error('Cannot redraw item: no parent attached');
  }
  if (!this.dom.box.parentNode) {
    var foreground = this.parent.dom.foreground;
    if (!foreground) {
      throw new Error('Cannot redraw item: parent has no foreground container element');
    }
    foreground.appendChild(this.dom.box);
  }
  this.displayed = true;
};

RangeItem.prototype._updateDirtyDomComponents = function () {
  // update dirty DOM. An item is marked dirty when:
  // - the item is not yet rendered
  // - the item's data is changed
  // - the item is selected/deselected
  if (this.dirty) {
    this._updateContents(this.dom.content);
    this._updateDataAttributes(this.dom.box);
    this._updateStyle(this.dom.box);

    var editable = this.editable.updateTime || this.editable.updateGroup;

    // update class
    var className = (this.data.className ? ' ' + this.data.className : '') + (this.selected ? ' vis-selected' : '') + (editable ? ' vis-editable' : ' vis-readonly');
    this.dom.box.className = this.baseClassName + className;

    // turn off max-width to be able to calculate the real width
    // this causes an extra browser repaint/reflow, but so be it
    this.dom.content.style.maxWidth = 'none';
  }
};

RangeItem.prototype._getDomComponentsSizes = function () {
  // determine from css whether this box has overflow
  this.overflow = window.getComputedStyle(this.dom.frame).overflow !== 'hidden';
  return {
    content: {
      width: this.dom.content.offsetWidth
    },
    box: {
      height: this.dom.box.offsetHeight
    }
  };
};

RangeItem.prototype._updateDomComponentsSizes = function (sizes) {
  this.props.content.width = sizes.content.width;
  this.height = sizes.box.height;
  this.dom.content.style.maxWidth = '';
  this.dirty = false;
};

RangeItem.prototype._repaintDomAdditionals = function () {
  this._repaintOnItemUpdateTimeTooltip(this.dom.box);
  this._repaintDeleteButton(this.dom.box);
  this._repaintDragCenter();
  this._repaintDragLeft();
  this._repaintDragRight();
};

/**
 * Repaint the item
 * @param {boolean} [returnQueue=false]  return the queue
 * @return {boolean} the redraw queue if returnQueue=true
 */
RangeItem.prototype.redraw = function (returnQueue) {
  var sizes;
  var queue = [
  // create item DOM
  this._createDomElement.bind(this),

  // append DOM to parent DOM
  this._appendDomElement.bind(this),

  // update dirty DOM 
  this._updateDirtyDomComponents.bind(this), function () {
    if (this.dirty) {
      sizes = this._getDomComponentsSizes.bind(this)();
    }
  }.bind(this), function () {
    if (this.dirty) {
      this._updateDomComponentsSizes.bind(this)(sizes);
    }
  }.bind(this),

  // repaint DOM additionals
  this._repaintDomAdditionals.bind(this)];

  if (returnQueue) {
    return queue;
  } else {
    var result;
    queue.forEach(function (fn) {
      result = fn();
    });
    return result;
  }
};

/**
 * Show the item in the DOM (when not already visible). The items DOM will
 * be created when needed.
 */
RangeItem.prototype.show = function () {
  if (!this.displayed) {
    this.redraw();
  }
};

/**
 * Hide the item from the DOM (when visible)
 */
RangeItem.prototype.hide = function () {
  if (this.displayed) {
    var box = this.dom.box;

    if (box.parentNode) {
      box.parentNode.removeChild(box);
    }

    this.displayed = false;
  }
};

/**
 * Reposition the item horizontally
 * @param {boolean} [limitSize=true] If true (default), the width of the range
 *                                   item will be limited, as the browser cannot
 *                                   display very wide divs. This means though
 *                                   that the applied left and width may
 *                                   not correspond to the ranges start and end
 * @Override
 */
RangeItem.prototype.repositionX = function (limitSize) {
  var parentWidth = this.parent.width;
  var start = this.conversion.toScreen(this.data.start);
  var end = this.conversion.toScreen(this.data.end);
  var align = this.data.align === undefined ? this.options.align : this.data.align;
  var contentStartPosition;
  var contentWidth;

  // limit the width of the range, as browsers cannot draw very wide divs
  // unless limitSize: false is explicitly set in item data
  if (this.data.limitSize !== false && (limitSize === undefined || limitSize === true)) {
    if (start < -parentWidth) {
      start = -parentWidth;
    }
    if (end > 2 * parentWidth) {
      end = 2 * parentWidth;
    }
  }

  // add 0.5 to compensate floating-point values rounding
  var boxWidth = Math.max(end - start + 0.5, 1);

  if (this.overflow) {
    if (this.options.rtl) {
      this.right = start;
    } else {
      this.left = start;
    }
    this.width = boxWidth + this.props.content.width;
    contentWidth = this.props.content.width;

    // Note: The calculation of width is an optimistic calculation, giving
    //       a width which will not change when moving the Timeline
    //       So no re-stacking needed, which is nicer for the eye;
  } else {
    if (this.options.rtl) {
      this.right = start;
    } else {
      this.left = start;
    }
    this.width = boxWidth;
    contentWidth = Math.min(end - start, this.props.content.width);
  }

  if (this.options.rtl) {
    this.dom.box.style.right = this.right + 'px';
  } else {
    this.dom.box.style.left = this.left + 'px';
  }
  this.dom.box.style.width = boxWidth + 'px';

  switch (align) {
    case 'left':
      if (this.options.rtl) {
        this.dom.content.style.right = '0';
      } else {
        this.dom.content.style.left = '0';
      }
      break;

    case 'right':
      if (this.options.rtl) {
        this.dom.content.style.right = Math.max(boxWidth - contentWidth, 0) + 'px';
      } else {
        this.dom.content.style.left = Math.max(boxWidth - contentWidth, 0) + 'px';
      }
      break;

    case 'center':
      if (this.options.rtl) {
        this.dom.content.style.right = Math.max((boxWidth - contentWidth) / 2, 0) + 'px';
      } else {
        this.dom.content.style.left = Math.max((boxWidth - contentWidth) / 2, 0) + 'px';
      }

      break;

    default:
      // 'auto'
      // when range exceeds left of the window, position the contents at the left of the visible area
      if (this.overflow) {
        if (end > 0) {
          contentStartPosition = Math.max(-start, 0);
        } else {
          contentStartPosition = -contentWidth; // ensure it's not visible anymore
        }
      } else {
        if (start < 0) {
          contentStartPosition = -start;
        } else {
          contentStartPosition = 0;
        }
      }
      if (this.options.rtl) {
        this.dom.content.style.right = contentStartPosition + 'px';
      } else {
        this.dom.content.style.left = contentStartPosition + 'px';
        this.dom.content.style.width = 'calc(100% - ' + contentStartPosition + 'px)';
      }
  }
};

/**
 * Reposition the item vertically
 * @Override
 */
RangeItem.prototype.repositionY = function () {
  var orientation = this.options.orientation.item;
  var box = this.dom.box;

  if (orientation == 'top') {
    box.style.top = this.top + 'px';
  } else {
    box.style.top = this.parent.height - this.top - this.height + 'px';
  }
};

/**
 * Repaint a drag area on the left side of the range when the range is selected
 * @protected
 */
RangeItem.prototype._repaintDragLeft = function () {
  if ((this.selected || this.options.itemsAlwaysDraggable.range) && this.options.editable.updateTime && !this.dom.dragLeft) {
    // create and show drag area
    var dragLeft = document.createElement('div');
    dragLeft.className = 'vis-drag-left';
    dragLeft.dragLeftItem = this;

    this.dom.box.appendChild(dragLeft);
    this.dom.dragLeft = dragLeft;
  } else if (!this.selected && !this.options.itemsAlwaysDraggable.range && this.dom.dragLeft) {
    // delete drag area
    if (this.dom.dragLeft.parentNode) {
      this.dom.dragLeft.parentNode.removeChild(this.dom.dragLeft);
    }
    this.dom.dragLeft = null;
  }
};

/**
 * Repaint a drag area on the right side of the range when the range is selected
 * @protected
 */
RangeItem.prototype._repaintDragRight = function () {
  if ((this.selected || this.options.itemsAlwaysDraggable.range) && this.options.editable.updateTime && !this.dom.dragRight) {
    // create and show drag area
    var dragRight = document.createElement('div');
    dragRight.className = 'vis-drag-right';
    dragRight.dragRightItem = this;

    this.dom.box.appendChild(dragRight);
    this.dom.dragRight = dragRight;
  } else if (!this.selected && !this.options.itemsAlwaysDraggable.range && this.dom.dragRight) {
    // delete drag area
    if (this.dom.dragRight.parentNode) {
      this.dom.dragRight.parentNode.removeChild(this.dom.dragRight);
    }
    this.dom.dragRight = null;
  }
};

module.exports = RangeItem;

/***/ }),
/* 71 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _stringify = __webpack_require__(19);

var _stringify2 = _interopRequireDefault(_stringify);

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);

var ColorPicker = __webpack_require__(179)['default'];

/**
 * The way this works is for all properties of this.possible options, you can supply the property name in any form to list the options.
 * Boolean options are recognised as Boolean
 * Number options should be written as array: [default value, min value, max value, stepsize]
 * Colors should be written as array: ['color', '#ffffff']
 * Strings with should be written as array: [option1, option2, option3, ..]
 *
 * The options are matched with their counterparts in each of the modules and the values used in the configuration are
 */

var Configurator = function () {
  /**
   * @param {Object} parentModule        | the location where parentModule.setOptions() can be called
   * @param {Object} defaultContainer    | the default container of the module
   * @param {Object} configureOptions    | the fully configured and predefined options set found in allOptions.js
   * @param {number} pixelRatio          | canvas pixel ratio
   */
  function Configurator(parentModule, defaultContainer, configureOptions) {
    var pixelRatio = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 1;
    (0, _classCallCheck3['default'])(this, Configurator);

    this.parent = parentModule;
    this.changedOptions = [];
    this.container = defaultContainer;
    this.allowCreation = false;

    this.options = {};
    this.initialized = false;
    this.popupCounter = 0;
    this.defaultOptions = {
      enabled: false,
      filter: true,
      container: undefined,
      showButton: true
    };
    util.extend(this.options, this.defaultOptions);

    this.configureOptions = configureOptions;
    this.moduleOptions = {};
    this.domElements = [];
    this.popupDiv = {};
    this.popupLimit = 5;
    this.popupHistory = {};
    this.colorPicker = new ColorPicker(pixelRatio);
    this.wrapper = undefined;
  }

  /**
   * refresh all options.
   * Because all modules parse their options by themselves, we just use their options. We copy them here.
   *
   * @param {Object} options
   */


  (0, _createClass3['default'])(Configurator, [{
    key: 'setOptions',
    value: function setOptions(options) {
      if (options !== undefined) {
        // reset the popup history because the indices may have been changed.
        this.popupHistory = {};
        this._removePopup();

        var enabled = true;
        if (typeof options === 'string') {
          this.options.filter = options;
        } else if (options instanceof Array) {
          this.options.filter = options.join();
        } else if ((typeof options === 'undefined' ? 'undefined' : (0, _typeof3['default'])(options)) === 'object') {
          if (options.container !== undefined) {
            this.options.container = options.container;
          }
          if (options.filter !== undefined) {
            this.options.filter = options.filter;
          }
          if (options.showButton !== undefined) {
            this.options.showButton = options.showButton;
          }
          if (options.enabled !== undefined) {
            enabled = options.enabled;
          }
        } else if (typeof options === 'boolean') {
          this.options.filter = true;
          enabled = options;
        } else if (typeof options === 'function') {
          this.options.filter = options;
          enabled = true;
        }
        if (this.options.filter === false) {
          enabled = false;
        }

        this.options.enabled = enabled;
      }
      this._clean();
    }

    /**
     *
     * @param {Object} moduleOptions
     */

  }, {
    key: 'setModuleOptions',
    value: function setModuleOptions(moduleOptions) {
      this.moduleOptions = moduleOptions;
      if (this.options.enabled === true) {
        this._clean();
        if (this.options.container !== undefined) {
          this.container = this.options.container;
        }
        this._create();
      }
    }

    /**
     * Create all DOM elements
     * @private
     */

  }, {
    key: '_create',
    value: function _create() {
      var _this = this;

      this._clean();
      this.changedOptions = [];

      var filter = this.options.filter;
      var counter = 0;
      var show = false;
      for (var option in this.configureOptions) {
        if (this.configureOptions.hasOwnProperty(option)) {
          this.allowCreation = false;
          show = false;
          if (typeof filter === 'function') {
            show = filter(option, []);
            show = show || this._handleObject(this.configureOptions[option], [option], true);
          } else if (filter === true || filter.indexOf(option) !== -1) {
            show = true;
          }

          if (show !== false) {
            this.allowCreation = true;

            // linebreak between categories
            if (counter > 0) {
              this._makeItem([]);
            }
            // a header for the category
            this._makeHeader(option);

            // get the sub options
            this._handleObject(this.configureOptions[option], [option]);
          }
          counter++;
        }
      }

      if (this.options.showButton === true) {
        var generateButton = document.createElement('div');
        generateButton.className = 'vis-configuration vis-config-button';
        generateButton.innerHTML = 'generate options';
        generateButton.onclick = function () {
          _this._printOptions();
        };
        generateButton.onmouseover = function () {
          generateButton.className = 'vis-configuration vis-config-button hover';
        };
        generateButton.onmouseout = function () {
          generateButton.className = 'vis-configuration vis-config-button';
        };

        this.optionsContainer = document.createElement('div');
        this.optionsContainer.className = 'vis-configuration vis-config-option-container';

        this.domElements.push(this.optionsContainer);
        this.domElements.push(generateButton);
      }

      this._push();
      //~ this.colorPicker.insertTo(this.container);
    }

    /**
     * draw all DOM elements on the screen
     * @private
     */

  }, {
    key: '_push',
    value: function _push() {
      this.wrapper = document.createElement('div');
      this.wrapper.className = 'vis-configuration-wrapper';
      this.container.appendChild(this.wrapper);
      for (var i = 0; i < this.domElements.length; i++) {
        this.wrapper.appendChild(this.domElements[i]);
      }

      this._showPopupIfNeeded();
    }

    /**
     * delete all DOM elements
     * @private
     */

  }, {
    key: '_clean',
    value: function _clean() {
      for (var i = 0; i < this.domElements.length; i++) {
        this.wrapper.removeChild(this.domElements[i]);
      }

      if (this.wrapper !== undefined) {
        this.container.removeChild(this.wrapper);
        this.wrapper = undefined;
      }
      this.domElements = [];

      this._removePopup();
    }

    /**
     * get the value from the actualOptions if it exists
     * @param {array} path    | where to look for the actual option
     * @returns {*}
     * @private
     */

  }, {
    key: '_getValue',
    value: function _getValue(path) {
      var base = this.moduleOptions;
      for (var i = 0; i < path.length; i++) {
        if (base[path[i]] !== undefined) {
          base = base[path[i]];
        } else {
          base = undefined;
          break;
        }
      }
      return base;
    }

    /**
     * all option elements are wrapped in an item
     * @param {Array} path    | where to look for the actual option
     * @param {Array.<Element>} domElements
     * @returns {number}
     * @private
     */

  }, {
    key: '_makeItem',
    value: function _makeItem(path) {
      if (this.allowCreation === true) {
        var item = document.createElement('div');
        item.className = 'vis-configuration vis-config-item vis-config-s' + path.length;

        for (var _len = arguments.length, domElements = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
          domElements[_key - 1] = arguments[_key];
        }

        domElements.forEach(function (element) {
          item.appendChild(element);
        });
        this.domElements.push(item);
        return this.domElements.length;
      }
      return 0;
    }

    /**
     * header for major subjects
     * @param {string} name
     * @private
     */

  }, {
    key: '_makeHeader',
    value: function _makeHeader(name) {
      var div = document.createElement('div');
      div.className = 'vis-configuration vis-config-header';
      div.innerHTML = name;
      this._makeItem([], div);
    }

    /**
     * make a label, if it is an object label, it gets different styling.
     * @param {string} name
     * @param {array} path    | where to look for the actual option
     * @param {string} objectLabel
     * @returns {HTMLElement}
     * @private
     */

  }, {
    key: '_makeLabel',
    value: function _makeLabel(name, path) {
      var objectLabel = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

      var div = document.createElement('div');
      div.className = 'vis-configuration vis-config-label vis-config-s' + path.length;
      if (objectLabel === true) {
        div.innerHTML = '<i><b>' + name + ':</b></i>';
      } else {
        div.innerHTML = name + ':';
      }
      return div;
    }

    /**
     * make a dropdown list for multiple possible string optoins
     * @param {Array.<number>} arr
     * @param {number} value
     * @param {array} path    | where to look for the actual option
     * @private
     */

  }, {
    key: '_makeDropdown',
    value: function _makeDropdown(arr, value, path) {
      var select = document.createElement('select');
      select.className = 'vis-configuration vis-config-select';
      var selectedValue = 0;
      if (value !== undefined) {
        if (arr.indexOf(value) !== -1) {
          selectedValue = arr.indexOf(value);
        }
      }

      for (var i = 0; i < arr.length; i++) {
        var option = document.createElement('option');
        option.value = arr[i];
        if (i === selectedValue) {
          option.selected = 'selected';
        }
        option.innerHTML = arr[i];
        select.appendChild(option);
      }

      var me = this;
      select.onchange = function () {
        me._update(this.value, path);
      };

      var label = this._makeLabel(path[path.length - 1], path);
      this._makeItem(path, label, select);
    }

    /**
     * make a range object for numeric options
     * @param {Array.<number>} arr
     * @param {number} value
     * @param {array} path    | where to look for the actual option
     * @private
     */

  }, {
    key: '_makeRange',
    value: function _makeRange(arr, value, path) {
      var defaultValue = arr[0];
      var min = arr[1];
      var max = arr[2];
      var step = arr[3];
      var range = document.createElement('input');
      range.className = 'vis-configuration vis-config-range';
      try {
        range.type = 'range'; // not supported on IE9
        range.min = min;
        range.max = max;
      }
      // TODO: Add some error handling and remove this lint exception
      catch (err) {} // eslint-disable-line no-empty
      range.step = step;

      // set up the popup settings in case they are needed.
      var popupString = '';
      var popupValue = 0;

      if (value !== undefined) {
        var factor = 1.20;
        if (value < 0 && value * factor < min) {
          range.min = Math.ceil(value * factor);
          popupValue = range.min;
          popupString = 'range increased';
        } else if (value / factor < min) {
          range.min = Math.ceil(value / factor);
          popupValue = range.min;
          popupString = 'range increased';
        }
        if (value * factor > max && max !== 1) {
          range.max = Math.ceil(value * factor);
          popupValue = range.max;
          popupString = 'range increased';
        }
        range.value = value;
      } else {
        range.value = defaultValue;
      }

      var input = document.createElement('input');
      input.className = 'vis-configuration vis-config-rangeinput';
      input.value = range.value;

      var me = this;
      range.onchange = function () {
        input.value = this.value;me._update(Number(this.value), path);
      };
      range.oninput = function () {
        input.value = this.value;
      };

      var label = this._makeLabel(path[path.length - 1], path);
      var itemIndex = this._makeItem(path, label, range, input);

      // if a popup is needed AND it has not been shown for this value, show it.
      if (popupString !== '' && this.popupHistory[itemIndex] !== popupValue) {
        this.popupHistory[itemIndex] = popupValue;
        this._setupPopup(popupString, itemIndex);
      }
    }

    /**
     * prepare the popup
     * @param {string} string
     * @param {number} index
     * @private
     */

  }, {
    key: '_setupPopup',
    value: function _setupPopup(string, index) {
      var _this2 = this;

      if (this.initialized === true && this.allowCreation === true && this.popupCounter < this.popupLimit) {
        var div = document.createElement("div");
        div.id = "vis-configuration-popup";
        div.className = "vis-configuration-popup";
        div.innerHTML = string;
        div.onclick = function () {
          _this2._removePopup();
        };
        this.popupCounter += 1;
        this.popupDiv = { html: div, index: index };
      }
    }

    /**
     * remove the popup from the dom
     * @private
     */

  }, {
    key: '_removePopup',
    value: function _removePopup() {
      if (this.popupDiv.html !== undefined) {
        this.popupDiv.html.parentNode.removeChild(this.popupDiv.html);
        clearTimeout(this.popupDiv.hideTimeout);
        clearTimeout(this.popupDiv.deleteTimeout);
        this.popupDiv = {};
      }
    }

    /**
     * Show the popup if it is needed.
     * @private
     */

  }, {
    key: '_showPopupIfNeeded',
    value: function _showPopupIfNeeded() {
      var _this3 = this;

      if (this.popupDiv.html !== undefined) {
        var correspondingElement = this.domElements[this.popupDiv.index];
        var rect = correspondingElement.getBoundingClientRect();
        this.popupDiv.html.style.left = rect.left + "px";
        this.popupDiv.html.style.top = rect.top - 30 + "px"; // 30 is the height;
        document.body.appendChild(this.popupDiv.html);
        this.popupDiv.hideTimeout = setTimeout(function () {
          _this3.popupDiv.html.style.opacity = 0;
        }, 1500);
        this.popupDiv.deleteTimeout = setTimeout(function () {
          _this3._removePopup();
        }, 1800);
      }
    }

    /**
     * make a checkbox for boolean options.
     * @param {number} defaultValue
     * @param {number} value
     * @param {array} path    | where to look for the actual option
     * @private
     */

  }, {
    key: '_makeCheckbox',
    value: function _makeCheckbox(defaultValue, value, path) {
      var checkbox = document.createElement('input');
      checkbox.type = 'checkbox';
      checkbox.className = 'vis-configuration vis-config-checkbox';
      checkbox.checked = defaultValue;
      if (value !== undefined) {
        checkbox.checked = value;
        if (value !== defaultValue) {
          if ((typeof defaultValue === 'undefined' ? 'undefined' : (0, _typeof3['default'])(defaultValue)) === 'object') {
            if (value !== defaultValue.enabled) {
              this.changedOptions.push({ path: path, value: value });
            }
          } else {
            this.changedOptions.push({ path: path, value: value });
          }
        }
      }

      var me = this;
      checkbox.onchange = function () {
        me._update(this.checked, path);
      };

      var label = this._makeLabel(path[path.length - 1], path);
      this._makeItem(path, label, checkbox);
    }

    /**
     * make a text input field for string options.
     * @param {number} defaultValue
     * @param {number} value
     * @param {array} path    | where to look for the actual option
     * @private
     */

  }, {
    key: '_makeTextInput',
    value: function _makeTextInput(defaultValue, value, path) {
      var checkbox = document.createElement('input');
      checkbox.type = 'text';
      checkbox.className = 'vis-configuration vis-config-text';
      checkbox.value = value;
      if (value !== defaultValue) {
        this.changedOptions.push({ path: path, value: value });
      }

      var me = this;
      checkbox.onchange = function () {
        me._update(this.value, path);
      };

      var label = this._makeLabel(path[path.length - 1], path);
      this._makeItem(path, label, checkbox);
    }

    /**
     * make a color field with a color picker for color fields
     * @param {Array.<number>} arr
     * @param {number} value
     * @param {array} path    | where to look for the actual option
     * @private
     */

  }, {
    key: '_makeColorField',
    value: function _makeColorField(arr, value, path) {
      var _this4 = this;

      var defaultColor = arr[1];
      var div = document.createElement('div');
      value = value === undefined ? defaultColor : value;

      if (value !== 'none') {
        div.className = 'vis-configuration vis-config-colorBlock';
        div.style.backgroundColor = value;
      } else {
        div.className = 'vis-configuration vis-config-colorBlock none';
      }

      value = value === undefined ? defaultColor : value;
      div.onclick = function () {
        _this4._showColorPicker(value, div, path);
      };

      var label = this._makeLabel(path[path.length - 1], path);
      this._makeItem(path, label, div);
    }

    /**
     * used by the color buttons to call the color picker.
     * @param {number} value
     * @param {HTMLElement} div
     * @param {array} path    | where to look for the actual option
     * @private
     */

  }, {
    key: '_showColorPicker',
    value: function _showColorPicker(value, div, path) {
      var _this5 = this;

      // clear the callback from this div
      div.onclick = function () {};

      this.colorPicker.insertTo(div);
      this.colorPicker.show();

      this.colorPicker.setColor(value);
      this.colorPicker.setUpdateCallback(function (color) {
        var colorString = 'rgba(' + color.r + ',' + color.g + ',' + color.b + ',' + color.a + ')';
        div.style.backgroundColor = colorString;
        _this5._update(colorString, path);
      });

      // on close of the colorpicker, restore the callback.
      this.colorPicker.setCloseCallback(function () {
        div.onclick = function () {
          _this5._showColorPicker(value, div, path);
        };
      });
    }

    /**
     * parse an object and draw the correct items
     * @param {Object} obj
     * @param {array} [path=[]]    | where to look for the actual option
     * @param {boolean} [checkOnly=false]
     * @returns {boolean}
     * @private
     */

  }, {
    key: '_handleObject',
    value: function _handleObject(obj) {
      var path = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];
      var checkOnly = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

      var show = false;
      var filter = this.options.filter;
      var visibleInSet = false;
      for (var subObj in obj) {
        if (obj.hasOwnProperty(subObj)) {
          show = true;
          var item = obj[subObj];
          var newPath = util.copyAndExtendArray(path, subObj);
          if (typeof filter === 'function') {
            show = filter(subObj, path);

            // if needed we must go deeper into the object.
            if (show === false) {
              if (!(item instanceof Array) && typeof item !== 'string' && typeof item !== 'boolean' && item instanceof Object) {
                this.allowCreation = false;
                show = this._handleObject(item, newPath, true);
                this.allowCreation = checkOnly === false;
              }
            }
          }

          if (show !== false) {
            visibleInSet = true;
            var value = this._getValue(newPath);

            if (item instanceof Array) {
              this._handleArray(item, value, newPath);
            } else if (typeof item === 'string') {
              this._makeTextInput(item, value, newPath);
            } else if (typeof item === 'boolean') {
              this._makeCheckbox(item, value, newPath);
            } else if (item instanceof Object) {
              // collapse the physics options that are not enabled
              var draw = true;
              if (path.indexOf('physics') !== -1) {
                if (this.moduleOptions.physics.solver !== subObj) {
                  draw = false;
                }
              }

              if (draw === true) {
                // initially collapse options with an disabled enabled option.
                if (item.enabled !== undefined) {
                  var enabledPath = util.copyAndExtendArray(newPath, 'enabled');
                  var enabledValue = this._getValue(enabledPath);
                  if (enabledValue === true) {
                    var label = this._makeLabel(subObj, newPath, true);
                    this._makeItem(newPath, label);
                    visibleInSet = this._handleObject(item, newPath) || visibleInSet;
                  } else {
                    this._makeCheckbox(item, enabledValue, newPath);
                  }
                } else {
                  var _label = this._makeLabel(subObj, newPath, true);
                  this._makeItem(newPath, _label);
                  visibleInSet = this._handleObject(item, newPath) || visibleInSet;
                }
              }
            } else {
              console.error('dont know how to handle', item, subObj, newPath);
            }
          }
        }
      }
      return visibleInSet;
    }

    /**
     * handle the array type of option
     * @param {Array.<number>} arr
     * @param {number} value
     * @param {array} path    | where to look for the actual option
     * @private
     */

  }, {
    key: '_handleArray',
    value: function _handleArray(arr, value, path) {
      if (typeof arr[0] === 'string' && arr[0] === 'color') {
        this._makeColorField(arr, value, path);
        if (arr[1] !== value) {
          this.changedOptions.push({ path: path, value: value });
        }
      } else if (typeof arr[0] === 'string') {
        this._makeDropdown(arr, value, path);
        if (arr[0] !== value) {
          this.changedOptions.push({ path: path, value: value });
        }
      } else if (typeof arr[0] === 'number') {
        this._makeRange(arr, value, path);
        if (arr[0] !== value) {
          this.changedOptions.push({ path: path, value: Number(value) });
        }
      }
    }

    /**
     * called to update the network with the new settings.
     * @param {number} value
     * @param {array} path    | where to look for the actual option
     * @private
     */

  }, {
    key: '_update',
    value: function _update(value, path) {
      var options = this._constructOptions(value, path);

      if (this.parent.body && this.parent.body.emitter && this.parent.body.emitter.emit) {
        this.parent.body.emitter.emit("configChange", options);
      }
      this.initialized = true;
      this.parent.setOptions(options);
    }

    /**
     *
     * @param {string|Boolean} value
     * @param {Array.<string>} path
     * @param {{}} optionsObj
     * @returns {{}}
     * @private
     */

  }, {
    key: '_constructOptions',
    value: function _constructOptions(value, path) {
      var optionsObj = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

      var pointer = optionsObj;

      // when dropdown boxes can be string or boolean, we typecast it into correct types
      value = value === 'true' ? true : value;
      value = value === 'false' ? false : value;

      for (var i = 0; i < path.length; i++) {
        if (path[i] !== 'global') {
          if (pointer[path[i]] === undefined) {
            pointer[path[i]] = {};
          }
          if (i !== path.length - 1) {
            pointer = pointer[path[i]];
          } else {
            pointer[path[i]] = value;
          }
        }
      }
      return optionsObj;
    }

    /**
     * @private
     */

  }, {
    key: '_printOptions',
    value: function _printOptions() {
      var options = this.getOptions();
      this.optionsContainer.innerHTML = '<pre>var options = ' + (0, _stringify2['default'])(options, null, 2) + '</pre>';
    }

    /**
     *
     * @returns {{}} options
     */

  }, {
    key: 'getOptions',
    value: function getOptions() {
      var options = {};
      for (var i = 0; i < this.changedOptions.length; i++) {
        this._constructOptions(this.changedOptions[i].value, this.changedOptions[i].path, options);
      }
      return options;
    }
  }]);
  return Configurator;
}();

exports['default'] = Configurator;

/***/ }),
/* 72 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var DOMutil = __webpack_require__(14);

/**
 *
 * @param {number | string} groupId
 * @param {Object} options   // TODO: Describe options
 *
 * @constructor Points
 */
function Points(groupId, options) {} // eslint-disable-line no-unused-vars


/**
 * draw the data points
 *
 * @param {Array} dataset
 * @param {GraphGroup} group
 * @param {Object} framework            | SVG DOM element
 * @param {number} [offset]
 */
Points.draw = function (dataset, group, framework, offset) {
  offset = offset || 0;
  var callback = getCallback(framework, group);

  for (var i = 0; i < dataset.length; i++) {
    if (!callback) {
      // draw the point the simple way.
      DOMutil.drawPoint(dataset[i].screen_x + offset, dataset[i].screen_y, getGroupTemplate(group), framework.svgElements, framework.svg, dataset[i].label);
    } else {
      var callbackResult = callback(dataset[i], group); // result might be true, false or an object
      if (callbackResult === true || (typeof callbackResult === 'undefined' ? 'undefined' : (0, _typeof3['default'])(callbackResult)) === 'object') {
        DOMutil.drawPoint(dataset[i].screen_x + offset, dataset[i].screen_y, getGroupTemplate(group, callbackResult), framework.svgElements, framework.svg, dataset[i].label);
      }
    }
  }
};

Points.drawIcon = function (group, x, y, iconWidth, iconHeight, framework) {
  var fillHeight = iconHeight * 0.5;

  var outline = DOMutil.getSVGElement("rect", framework.svgElements, framework.svg);
  outline.setAttributeNS(null, "x", x);
  outline.setAttributeNS(null, "y", y - fillHeight);
  outline.setAttributeNS(null, "width", iconWidth);
  outline.setAttributeNS(null, "height", 2 * fillHeight);
  outline.setAttributeNS(null, "class", "vis-outline");

  //Don't call callback on icon
  DOMutil.drawPoint(x + 0.5 * iconWidth, y, getGroupTemplate(group), framework.svgElements, framework.svg);
};

/**
 *
 * @param {vis.Group} group
 * @param {any} callbackResult
 * @returns {{style: *, styles: (*|string), size: *, className: *}}
 */
function getGroupTemplate(group, callbackResult) {
  callbackResult = typeof callbackResult === 'undefined' ? {} : callbackResult;
  return {
    style: callbackResult.style || group.options.drawPoints.style,
    styles: callbackResult.styles || group.options.drawPoints.styles,
    size: callbackResult.size || group.options.drawPoints.size,
    className: callbackResult.className || group.className
  };
}

/**
 *
 * @param {Object} framework            | SVG DOM element
 * @param {vis.Group} group
 * @returns {function}
 */
function getCallback(framework, group) {
  var callback = undefined;
  // check for the graph2d onRender
  if (framework.options && framework.options.drawPoints && framework.options.drawPoints.onRender && typeof framework.options.drawPoints.onRender == 'function') {
    callback = framework.options.drawPoints.onRender;
  }

  // override it with the group onRender if defined
  if (group.group.options && group.group.options.drawPoints && group.group.options.drawPoints.onRender && typeof group.group.options.drawPoints.onRender == 'function') {
    callback = group.group.options.drawPoints.onRender;
  }
  return callback;
}

module.exports = Points;

/***/ }),
/* 73 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _NodeBase2 = __webpack_require__(23);

var _NodeBase3 = _interopRequireDefault(_NodeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * NOTE: This is a bad base class
 *
 * Child classes are:
 *
 *   Image       - uses *only* image methods
 *   Circle      - uses *only* _drawRawCircle
 *   CircleImage - uses all
 *
 * TODO: Refactor, move _drawRawCircle to different module, derive Circle from NodeBase
 *       Rename this to ImageBase
 *       Consolidate common code in Image and CircleImage to base class
 *
 * @extends NodeBase
 */
var CircleImageBase = function (_NodeBase) {
  (0, _inherits3['default'])(CircleImageBase, _NodeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function CircleImageBase(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, CircleImageBase);

    var _this = (0, _possibleConstructorReturn3['default'])(this, (CircleImageBase.__proto__ || (0, _getPrototypeOf2['default'])(CircleImageBase)).call(this, options, body, labelModule));

    _this.labelOffset = 0;
    _this.selected = false;
    return _this;
  }

  /**
   *
   * @param {Object} options
   * @param {Object} [imageObj]
   * @param {Object} [imageObjAlt]
   */


  (0, _createClass3['default'])(CircleImageBase, [{
    key: 'setOptions',
    value: function setOptions(options, imageObj, imageObjAlt) {
      this.options = options;

      if (!(imageObj === undefined && imageObjAlt === undefined)) {
        this.setImages(imageObj, imageObjAlt);
      }
    }

    /**
     * Set the images for this node.
     *
     * The images can be updated after the initial setting of options;
     * therefore, this method needs to be reentrant. 
     *
     * For correct working in error cases, it is necessary to properly set
     * field 'nodes.brokenImage' in the options.
     *
     * @param {Image} imageObj  required; main image to show for this node
     * @param {Image|undefined} imageObjAlt optional; image to show when node is selected
     */

  }, {
    key: 'setImages',
    value: function setImages(imageObj, imageObjAlt) {
      if (imageObjAlt && this.selected) {
        this.imageObj = imageObjAlt;
        this.imageObjAlt = imageObj;
      } else {
        this.imageObj = imageObj;
        this.imageObjAlt = imageObjAlt;
      }
    }

    /**
     * Set selection and switch between the base and the selected image.
     *
     * Do the switch only if imageObjAlt exists.
     *
     * @param {boolean} selected value of new selected state for current node
     */

  }, {
    key: 'switchImages',
    value: function switchImages(selected) {
      var selection_changed = selected && !this.selected || !selected && this.selected;
      this.selected = selected; // Remember new selection

      if (this.imageObjAlt !== undefined && selection_changed) {
        var imageTmp = this.imageObj;
        this.imageObj = this.imageObjAlt;
        this.imageObjAlt = imageTmp;
      }
    }

    /**
     * Adjust the node dimensions for a loaded image.
     *
     * Pre: this.imageObj is valid
     */

  }, {
    key: '_resizeImage',
    value: function _resizeImage() {
      var width, height;

      if (this.options.shapeProperties.useImageSize === false) {
        // Use the size property
        var ratio_width = 1;
        var ratio_height = 1;

        // Only calculate the proper ratio if both width and height not zero
        if (this.imageObj.width && this.imageObj.height) {
          if (this.imageObj.width > this.imageObj.height) {
            ratio_width = this.imageObj.width / this.imageObj.height;
          } else {
            ratio_height = this.imageObj.height / this.imageObj.width;
          }
        }

        width = this.options.size * 2 * ratio_width;
        height = this.options.size * 2 * ratio_height;
      } else {
        // Use the image size
        width = this.imageObj.width;
        height = this.imageObj.height;
      }

      this.width = width;
      this.height = height;
      this.radius = 0.5 * this.width;
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     * @private
     */

  }, {
    key: '_drawRawCircle',
    value: function _drawRawCircle(ctx, x, y, values) {
      this.initContextForDraw(ctx, values);
      ctx.circle(x, y, values.size);
      this.performFill(ctx, values);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     * @private
     */

  }, {
    key: '_drawImageAtPosition',
    value: function _drawImageAtPosition(ctx, values) {
      if (this.imageObj.width != 0) {
        // draw the image
        ctx.globalAlpha = 1.0;

        // draw shadow if enabled
        this.enableShadow(ctx, values);

        var factor = 1;
        if (this.options.shapeProperties.interpolation === true) {
          factor = this.imageObj.width / this.width / this.body.view.scale;
        }

        this.imageObj.drawImageAtPosition(ctx, factor, this.left, this.top, this.width, this.height);

        // disable shadows for other elements.
        this.disableShadow(ctx, values);
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {boolean} selected
     * @param {boolean} hover
     * @private
     */

  }, {
    key: '_drawImageLabel',
    value: function _drawImageLabel(ctx, x, y, selected, hover) {
      var yLabel;
      var offset = 0;

      if (this.height !== undefined) {
        offset = this.height * 0.5;
        var labelDimensions = this.labelModule.getTextSize(ctx, selected, hover);
        if (labelDimensions.lineCount >= 1) {
          offset += labelDimensions.height / 2;
        }
      }

      yLabel = y + offset;

      if (this.options.label) {
        this.labelOffset = offset;
      }
      this.labelModule.draw(ctx, x, yLabel, selected, hover, 'hanging');
    }
  }]);
  return CircleImageBase;
}(_NodeBase3['default']);

exports['default'] = CircleImageBase;

/***/ }),
/* 74 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _stringify = __webpack_require__(19);

var _stringify2 = _interopRequireDefault(_stringify);

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

var _create = __webpack_require__(29);

var _create2 = _interopRequireDefault(_create);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var Label = __webpack_require__(117)['default'];
var ComponentUtil = __webpack_require__(48)['default'];
var CubicBezierEdge = __webpack_require__(215)['default'];
var BezierEdgeDynamic = __webpack_require__(217)['default'];
var BezierEdgeStatic = __webpack_require__(218)['default'];
var StraightEdge = __webpack_require__(219)['default'];

/**
 * An edge connects two nodes and has a specific direction.
 */

var Edge = function () {
  /**
   * @param {Object} options        values specific to this edge, must contain at least 'from' and 'to'
   * @param {Object} body           shared state from Network instance
   * @param {Object} globalOptions  options from the EdgesHandler instance
   * @param {Object} defaultOptions default options from the EdgeHandler instance. Value and reference are constant
   */
  function Edge(options, body, globalOptions, defaultOptions) {
    (0, _classCallCheck3['default'])(this, Edge);

    if (body === undefined) {
      throw new Error("No body provided");
    }

    // Since globalOptions is constant in values as well as reference,
    // Following needs to be done only once.

    this.options = util.bridgeObject(globalOptions);
    this.globalOptions = globalOptions;
    this.defaultOptions = defaultOptions;
    this.body = body;

    // initialize variables
    this.id = undefined;
    this.fromId = undefined;
    this.toId = undefined;
    this.selected = false;
    this.hover = false;
    this.labelDirty = true;

    this.baseWidth = this.options.width;
    this.baseFontSize = this.options.font.size;

    this.from = undefined; // a node
    this.to = undefined; // a node

    this.edgeType = undefined;

    this.connected = false;

    this.labelModule = new Label(this.body, this.options, true /* It's an edge label */);
    this.setOptions(options);
  }

  /**
   * Set or overwrite options for the edge
   * @param {Object} options  an object with options
   * @returns {null|boolean} null if no options, boolean if date changed
   */


  (0, _createClass3['default'])(Edge, [{
    key: 'setOptions',
    value: function setOptions(options) {
      if (!options) {
        return;
      }

      Edge.parseOptions(this.options, options, true, this.globalOptions);

      if (options.id !== undefined) {
        this.id = options.id;
      }
      if (options.from !== undefined) {
        this.fromId = options.from;
      }
      if (options.to !== undefined) {
        this.toId = options.to;
      }
      if (options.title !== undefined) {
        this.title = options.title;
      }
      if (options.value !== undefined) {
        options.value = parseFloat(options.value);
      }

      var pile = [options, this.options, this.defaultOptions];
      this.chooser = ComponentUtil.choosify('edge', pile);

      // update label Module
      this.updateLabelModule(options);

      var dataChanged = this.updateEdgeType();

      // if anything has been updates, reset the selection width and the hover width
      this._setInteractionWidths();

      // A node is connected when it has a from and to node that both exist in the network.body.nodes.
      this.connect();

      if (options.hidden !== undefined || options.physics !== undefined) {
        dataChanged = true;
      }

      return dataChanged;
    }

    /**
     *
     * @param {Object} parentOptions
     * @param {Object} newOptions
     * @param {boolean} [allowDeletion=false]
     * @param {Object} [globalOptions={}]
     * @param {boolean} [copyFromGlobals=false]
     */

  }, {
    key: 'getFormattingValues',


    /**
     *
     * @returns {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}}
     */
    value: function getFormattingValues() {
      var toArrow = this.options.arrows.to === true || this.options.arrows.to.enabled === true;
      var fromArrow = this.options.arrows.from === true || this.options.arrows.from.enabled === true;
      var middleArrow = this.options.arrows.middle === true || this.options.arrows.middle.enabled === true;
      var inheritsColor = this.options.color.inherit;
      var values = {
        toArrow: toArrow,
        toArrowScale: this.options.arrows.to.scaleFactor,
        toArrowType: this.options.arrows.to.type,
        middleArrow: middleArrow,
        middleArrowScale: this.options.arrows.middle.scaleFactor,
        middleArrowType: this.options.arrows.middle.type,
        fromArrow: fromArrow,
        fromArrowScale: this.options.arrows.from.scaleFactor,
        fromArrowType: this.options.arrows.from.type,
        arrowStrikethrough: this.options.arrowStrikethrough,
        color: inheritsColor ? undefined : this.options.color.color,
        inheritsColor: inheritsColor,
        opacity: this.options.color.opacity,
        hidden: this.options.hidden,
        length: this.options.length,
        shadow: this.options.shadow.enabled,
        shadowColor: this.options.shadow.color,
        shadowSize: this.options.shadow.size,
        shadowX: this.options.shadow.x,
        shadowY: this.options.shadow.y,
        dashes: this.options.dashes,
        width: this.options.width
      };
      if (this.selected || this.hover) {
        if (this.chooser === true) {
          if (this.selected) {
            var selectedWidth = this.options.selectionWidth;
            if (typeof selectedWidth === 'function') {
              values.width = selectedWidth(values.width);
            } else if (typeof selectedWidth === 'number') {
              values.width += selectedWidth;
            }
            values.width = Math.max(values.width, 0.3 / this.body.view.scale);
            values.color = this.options.color.highlight;
            values.shadow = this.options.shadow.enabled;
          } else if (this.hover) {
            var hoverWidth = this.options.hoverWidth;
            if (typeof hoverWidth === 'function') {
              values.width = hoverWidth(values.width);
            } else if (typeof hoverWidth === 'number') {
              values.width += hoverWidth;
            }
            values.width = Math.max(values.width, 0.3 / this.body.view.scale);
            values.color = this.options.color.hover;
            values.shadow = this.options.shadow.enabled;
          }
        } else if (typeof this.chooser === 'function') {
          this.chooser(values, this.options.id, this.selected, this.hover);
          if (values.color !== undefined) {
            values.inheritsColor = false;
          }
          if (values.shadow === false) {
            if (values.shadowColor !== this.options.shadow.color || values.shadowSize !== this.options.shadow.size || values.shadowX !== this.options.shadow.x || values.shadowY !== this.options.shadow.y) {
              values.shadow = true;
            }
          }
        }
      } else {
        values.shadow = this.options.shadow.enabled;
        values.width = Math.max(values.width, 0.3 / this.body.view.scale);
      }
      return values;
    }

    /**
     * update the options in the label module
     *
     * @param {Object} options
     */

  }, {
    key: 'updateLabelModule',
    value: function updateLabelModule(options) {
      var pile = [options, this.options, this.globalOptions, // Currently set global edge options
      this.defaultOptions];

      this.labelModule.update(this.options, pile);

      if (this.labelModule.baseSize !== undefined) {
        this.baseFontSize = this.labelModule.baseSize;
      }
    }

    /**
     * update the edge type, set the options
     * @returns {boolean}
     */

  }, {
    key: 'updateEdgeType',
    value: function updateEdgeType() {
      var smooth = this.options.smooth;
      var dataChanged = false;
      var changeInType = true;
      if (this.edgeType !== undefined) {
        if (this.edgeType instanceof BezierEdgeDynamic && smooth.enabled === true && smooth.type === 'dynamic' || this.edgeType instanceof CubicBezierEdge && smooth.enabled === true && smooth.type === 'cubicBezier' || this.edgeType instanceof BezierEdgeStatic && smooth.enabled === true && smooth.type !== 'dynamic' && smooth.type !== 'cubicBezier' || this.edgeType instanceof StraightEdge && smooth.type.enabled === false) {
          changeInType = false;
        }
        if (changeInType === true) {
          dataChanged = this.cleanup();
        }
      }
      if (changeInType === true) {
        if (smooth.enabled === true) {
          if (smooth.type === 'dynamic') {
            dataChanged = true;
            this.edgeType = new BezierEdgeDynamic(this.options, this.body, this.labelModule);
          } else if (smooth.type === 'cubicBezier') {
            this.edgeType = new CubicBezierEdge(this.options, this.body, this.labelModule);
          } else {
            this.edgeType = new BezierEdgeStatic(this.options, this.body, this.labelModule);
          }
        } else {
          this.edgeType = new StraightEdge(this.options, this.body, this.labelModule);
        }
      } else {
        // if nothing changes, we just set the options.
        this.edgeType.setOptions(this.options);
      }
      return dataChanged;
    }

    /**
     * Connect an edge to its nodes
     */

  }, {
    key: 'connect',
    value: function connect() {
      this.disconnect();

      this.from = this.body.nodes[this.fromId] || undefined;
      this.to = this.body.nodes[this.toId] || undefined;
      this.connected = this.from !== undefined && this.to !== undefined;

      if (this.connected === true) {
        this.from.attachEdge(this);
        this.to.attachEdge(this);
      } else {
        if (this.from) {
          this.from.detachEdge(this);
        }
        if (this.to) {
          this.to.detachEdge(this);
        }
      }

      this.edgeType.connect();
    }

    /**
     * Disconnect an edge from its nodes
     */

  }, {
    key: 'disconnect',
    value: function disconnect() {
      if (this.from) {
        this.from.detachEdge(this);
        this.from = undefined;
      }
      if (this.to) {
        this.to.detachEdge(this);
        this.to = undefined;
      }

      this.connected = false;
    }

    /**
     * get the title of this edge.
     * @return {string} title    The title of the edge, or undefined when no title
     *                           has been set.
     */

  }, {
    key: 'getTitle',
    value: function getTitle() {
      return this.title;
    }

    /**
     * check if this node is selecte
     * @return {boolean} selected   True if node is selected, else false
     */

  }, {
    key: 'isSelected',
    value: function isSelected() {
      return this.selected;
    }

    /**
     * Retrieve the value of the edge. Can be undefined
     * @return {number} value
     */

  }, {
    key: 'getValue',
    value: function getValue() {
      return this.options.value;
    }

    /**
     * Adjust the value range of the edge. The edge will adjust it's width
     * based on its value.
     * @param {number} min
     * @param {number} max
     * @param {number} total
     */

  }, {
    key: 'setValueRange',
    value: function setValueRange(min, max, total) {
      if (this.options.value !== undefined) {
        var scale = this.options.scaling.customScalingFunction(min, max, total, this.options.value);
        var widthDiff = this.options.scaling.max - this.options.scaling.min;
        if (this.options.scaling.label.enabled === true) {
          var fontDiff = this.options.scaling.label.max - this.options.scaling.label.min;
          this.options.font.size = this.options.scaling.label.min + scale * fontDiff;
        }
        this.options.width = this.options.scaling.min + scale * widthDiff;
      } else {
        this.options.width = this.baseWidth;
        this.options.font.size = this.baseFontSize;
      }

      this._setInteractionWidths();
      this.updateLabelModule();
    }

    /**
     *
     * @private
     */

  }, {
    key: '_setInteractionWidths',
    value: function _setInteractionWidths() {
      if (typeof this.options.hoverWidth === 'function') {
        this.edgeType.hoverWidth = this.options.hoverWidth(this.options.width);
      } else {
        this.edgeType.hoverWidth = this.options.hoverWidth + this.options.width;
      }
      if (typeof this.options.selectionWidth === 'function') {
        this.edgeType.selectionWidth = this.options.selectionWidth(this.options.width);
      } else {
        this.edgeType.selectionWidth = this.options.selectionWidth + this.options.width;
      }
    }

    /**
     * Redraw a edge
     * Draw this edge in the given canvas
     * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d");
     * @param {CanvasRenderingContext2D}   ctx
     */

  }, {
    key: 'draw',
    value: function draw(ctx) {
      var values = this.getFormattingValues();
      if (values.hidden) {
        return;
      }

      // get the via node from the edge type
      var viaNode = this.edgeType.getViaNode();
      var arrowData = {};

      // restore edge targets to defaults
      this.edgeType.fromPoint = this.edgeType.from;
      this.edgeType.toPoint = this.edgeType.to;

      // from and to arrows give a different end point for edges. we set them here
      if (values.fromArrow) {
        arrowData.from = this.edgeType.getArrowData(ctx, 'from', viaNode, this.selected, this.hover, values);
        if (values.arrowStrikethrough === false) this.edgeType.fromPoint = arrowData.from.core;
      }
      if (values.toArrow) {
        arrowData.to = this.edgeType.getArrowData(ctx, 'to', viaNode, this.selected, this.hover, values);
        if (values.arrowStrikethrough === false) this.edgeType.toPoint = arrowData.to.core;
      }

      // the middle arrow depends on the line, which can depend on the to and from arrows so we do this one lastly.
      if (values.middleArrow) {
        arrowData.middle = this.edgeType.getArrowData(ctx, 'middle', viaNode, this.selected, this.hover, values);
      }

      // draw everything
      this.edgeType.drawLine(ctx, values, this.selected, this.hover, viaNode);
      this.drawArrows(ctx, arrowData, values);
      this.drawLabel(ctx, viaNode);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {Object} arrowData
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'drawArrows',
    value: function drawArrows(ctx, arrowData, values) {
      if (values.fromArrow) {
        this.edgeType.drawArrowHead(ctx, values, this.selected, this.hover, arrowData.from);
      }
      if (values.middleArrow) {
        this.edgeType.drawArrowHead(ctx, values, this.selected, this.hover, arrowData.middle);
      }
      if (values.toArrow) {
        this.edgeType.drawArrowHead(ctx, values, this.selected, this.hover, arrowData.to);
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {Node} viaNode
     */

  }, {
    key: 'drawLabel',
    value: function drawLabel(ctx, viaNode) {
      if (this.options.label !== undefined) {
        // set style
        var node1 = this.from;
        var node2 = this.to;

        if (this.labelModule.differentState(this.selected, this.hover)) {
          this.labelModule.getTextSize(ctx, this.selected, this.hover);
        }

        if (node1.id != node2.id) {
          this.labelModule.pointToSelf = false;
          var point = this.edgeType.getPoint(0.5, viaNode);
          ctx.save();

          var rotationPoint = this._getRotation(ctx);
          if (rotationPoint.angle != 0) {
            ctx.translate(rotationPoint.x, rotationPoint.y);
            ctx.rotate(rotationPoint.angle);
          }

          // draw the label
          this.labelModule.draw(ctx, point.x, point.y, this.selected, this.hover);

          /*
                  // Useful debug code: draw a border around the label
                  // This should **not** be enabled in production!
                  var size = this.labelModule.getSize();; // ;; intentional so lint catches it
                  ctx.strokeStyle = "#ff0000";
                  ctx.strokeRect(size.left, size.top, size.width, size.height);
                  // End  debug code
          */

          ctx.restore();
        } else {
          // Ignore the orientations.
          this.labelModule.pointToSelf = true;
          var x, y;
          var radius = this.options.selfReferenceSize;
          if (node1.shape.width > node1.shape.height) {
            x = node1.x + node1.shape.width * 0.5;
            y = node1.y - radius;
          } else {
            x = node1.x + radius;
            y = node1.y - node1.shape.height * 0.5;
          }
          point = this._pointOnCircle(x, y, radius, 0.125);
          this.labelModule.draw(ctx, point.x, point.y, this.selected, this.hover);
        }
      }
    }

    /**
     * Determine all visual elements of this edge instance, in which the given
     * point falls within the bounding shape.
     *
     * @param {point} point
     * @returns {Array.<edgeClickItem|edgeLabelClickItem>} list with the items which are on the point
     */

  }, {
    key: 'getItemsOnPoint',
    value: function getItemsOnPoint(point) {
      var ret = [];

      if (this.labelModule.visible()) {
        var rotationPoint = this._getRotation();
        if (ComponentUtil.pointInRect(this.labelModule.getSize(), point, rotationPoint)) {
          ret.push({ edgeId: this.id, labelId: 0 });
        }
      }

      var obj = {
        left: point.x,
        top: point.y
      };

      if (this.isOverlappingWith(obj)) {
        ret.push({ edgeId: this.id });
      }

      return ret;
    }

    /**
     * Check if this object is overlapping with the provided object
     * @param {Object} obj   an object with parameters left, top
     * @return {boolean}     True if location is located on the edge
     */

  }, {
    key: 'isOverlappingWith',
    value: function isOverlappingWith(obj) {
      if (this.connected) {
        var distMax = 10;
        var xFrom = this.from.x;
        var yFrom = this.from.y;
        var xTo = this.to.x;
        var yTo = this.to.y;
        var xObj = obj.left;
        var yObj = obj.top;

        var dist = this.edgeType.getDistanceToEdge(xFrom, yFrom, xTo, yTo, xObj, yObj);

        return dist < distMax;
      } else {
        return false;
      }
    }

    /** 
     * Determine the rotation point, if any.
     *
     * @param {CanvasRenderingContext2D} [ctx] if passed, do a recalculation of the label size
     * @returns {rotationPoint} the point to rotate around and the angle in radians to rotate
     * @private
     */

  }, {
    key: '_getRotation',
    value: function _getRotation(ctx) {
      var viaNode = this.edgeType.getViaNode();
      var point = this.edgeType.getPoint(0.5, viaNode);

      if (ctx !== undefined) {
        this.labelModule.calculateLabelSize(ctx, this.selected, this.hover, point.x, point.y);
      }

      var ret = {
        x: point.x,
        y: this.labelModule.size.yLine,
        angle: 0
      };

      if (!this.labelModule.visible()) {
        return ret; // Don't even bother doing the atan2, there's nothing to draw
      }

      if (this.options.font.align === "horizontal") {
        return ret; // No need to calculate angle
      }

      var dy = this.from.y - this.to.y;
      var dx = this.from.x - this.to.x;
      var angle = Math.atan2(dy, dx); // radians

      // rotate so that label is readable
      if (angle < -1 && dx < 0 || angle > 0 && dx < 0) {
        angle += Math.PI;
      }
      ret.angle = angle;

      return ret;
    }

    /**
     * Get a point on a circle
     * @param {number} x
     * @param {number} y
     * @param {number} radius
     * @param {number} percentage Value between 0 (line start) and 1 (line end)
     * @return {Object} point
     * @private
     */

  }, {
    key: '_pointOnCircle',
    value: function _pointOnCircle(x, y, radius, percentage) {
      var angle = percentage * 2 * Math.PI;
      return {
        x: x + radius * Math.cos(angle),
        y: y - radius * Math.sin(angle)
      };
    }

    /**
     * Sets selected state to true
     */

  }, {
    key: 'select',
    value: function select() {
      this.selected = true;
    }

    /**
     * Sets selected state to false
     */

  }, {
    key: 'unselect',
    value: function unselect() {
      this.selected = false;
    }

    /**
     * cleans all required things on delete
     * @returns {*}
     */

  }, {
    key: 'cleanup',
    value: function cleanup() {
      return this.edgeType.cleanup();
    }

    /**
     * Remove edge from the list and perform necessary cleanup.
     */

  }, {
    key: 'remove',
    value: function remove() {
      this.cleanup();
      this.disconnect();
      delete this.body.edges[this.id];
    }

    /**
     * Check if both connecting nodes exist
     * @returns {boolean}
     */

  }, {
    key: 'endPointsValid',
    value: function endPointsValid() {
      return this.body.nodes[this.fromId] !== undefined && this.body.nodes[this.toId] !== undefined;
    }
  }], [{
    key: 'parseOptions',
    value: function parseOptions(parentOptions, newOptions) {
      var allowDeletion = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
      var globalOptions = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
      var copyFromGlobals = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false;

      var fields = ['arrowStrikethrough', 'id', 'from', 'hidden', 'hoverWidth', 'labelHighlightBold', 'length', 'line', 'opacity', 'physics', 'scaling', 'selectionWidth', 'selfReferenceSize', 'to', 'title', 'value', 'width', 'font', 'chosen', 'widthConstraint'];

      // only deep extend the items in the field array. These do not have shorthand.
      util.selectiveDeepExtend(fields, parentOptions, newOptions, allowDeletion);

      // Only copy label if it's a legal value.
      if (ComponentUtil.isValidLabel(newOptions.label)) {
        parentOptions.label = newOptions.label;
      } else {
        parentOptions.label = undefined;
      }

      util.mergeOptions(parentOptions, newOptions, 'smooth', globalOptions);
      util.mergeOptions(parentOptions, newOptions, 'shadow', globalOptions);

      if (newOptions.dashes !== undefined && newOptions.dashes !== null) {
        parentOptions.dashes = newOptions.dashes;
      } else if (allowDeletion === true && newOptions.dashes === null) {
        parentOptions.dashes = (0, _create2['default'])(globalOptions.dashes); // this sets the pointer of the option back to the global option.
      }

      // set the scaling newOptions
      if (newOptions.scaling !== undefined && newOptions.scaling !== null) {
        if (newOptions.scaling.min !== undefined) {
          parentOptions.scaling.min = newOptions.scaling.min;
        }
        if (newOptions.scaling.max !== undefined) {
          parentOptions.scaling.max = newOptions.scaling.max;
        }
        util.mergeOptions(parentOptions.scaling, newOptions.scaling, 'label', globalOptions.scaling);
      } else if (allowDeletion === true && newOptions.scaling === null) {
        parentOptions.scaling = (0, _create2['default'])(globalOptions.scaling); // this sets the pointer of the option back to the global option.
      }

      // handle multiple input cases for arrows
      if (newOptions.arrows !== undefined && newOptions.arrows !== null) {
        if (typeof newOptions.arrows === 'string') {
          var arrows = newOptions.arrows.toLowerCase();
          parentOptions.arrows.to.enabled = arrows.indexOf("to") != -1;
          parentOptions.arrows.middle.enabled = arrows.indexOf("middle") != -1;
          parentOptions.arrows.from.enabled = arrows.indexOf("from") != -1;
        } else if ((0, _typeof3['default'])(newOptions.arrows) === 'object') {
          util.mergeOptions(parentOptions.arrows, newOptions.arrows, 'to', globalOptions.arrows);
          util.mergeOptions(parentOptions.arrows, newOptions.arrows, 'middle', globalOptions.arrows);
          util.mergeOptions(parentOptions.arrows, newOptions.arrows, 'from', globalOptions.arrows);
        } else {
          throw new Error("The arrow newOptions can only be an object or a string. Refer to the documentation. You used:" + (0, _stringify2['default'])(newOptions.arrows));
        }
      } else if (allowDeletion === true && newOptions.arrows === null) {
        parentOptions.arrows = (0, _create2['default'])(globalOptions.arrows); // this sets the pointer of the option back to the global option.
      }

      // handle multiple input cases for color
      if (newOptions.color !== undefined && newOptions.color !== null) {
        var fromColor = newOptions.color;
        var toColor = parentOptions.color;

        // If passed, fill in values from default options - required in the case of no prototype bridging
        if (copyFromGlobals) {
          util.deepExtend(toColor, globalOptions.color, false, allowDeletion);
        } else {
          // Clear local properties - need to do it like this in order to retain prototype bridges
          for (var i in toColor) {
            if (toColor.hasOwnProperty(i)) {
              delete toColor[i];
            }
          }
        }

        if (util.isString(toColor)) {
          toColor.color = toColor;
          toColor.highlight = toColor;
          toColor.hover = toColor;
          toColor.inherit = false;
          if (fromColor.opacity === undefined) {
            toColor.opacity = 1.0; // set default
          }
        } else {
          var colorsDefined = false;
          if (fromColor.color !== undefined) {
            toColor.color = fromColor.color;colorsDefined = true;
          }
          if (fromColor.highlight !== undefined) {
            toColor.highlight = fromColor.highlight;colorsDefined = true;
          }
          if (fromColor.hover !== undefined) {
            toColor.hover = fromColor.hover;colorsDefined = true;
          }
          if (fromColor.inherit !== undefined) {
            toColor.inherit = fromColor.inherit;
          }
          if (fromColor.opacity !== undefined) {
            toColor.opacity = Math.min(1, Math.max(0, fromColor.opacity));
          }

          if (colorsDefined === true) {
            toColor.inherit = false;
          } else {
            if (toColor.inherit === undefined) {
              toColor.inherit = 'from'; // Set default
            }
          }
        }
      } else if (allowDeletion === true && newOptions.color === null) {
        parentOptions.color = util.bridgeObject(globalOptions.color); // set the object back to the global options
      }

      if (allowDeletion === true && newOptions.font === null) {
        parentOptions.font = util.bridgeObject(globalOptions.font); // set the object back to the global options
      }
    }
  }]);
  return Edge;
}();

exports['default'] = Edge;

/***/ }),
/* 75 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _EdgeBase2 = __webpack_require__(118);

var _EdgeBase3 = _interopRequireDefault(_EdgeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * The Base Class for all Bezier edges. Bezier curves are used to model smooth
 * gradual curves in paths between nodes.
 *
 * @extends EdgeBase
 */
var BezierEdgeBase = function (_EdgeBase) {
  (0, _inherits3['default'])(BezierEdgeBase, _EdgeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function BezierEdgeBase(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, BezierEdgeBase);
    return (0, _possibleConstructorReturn3['default'])(this, (BezierEdgeBase.__proto__ || (0, _getPrototypeOf2['default'])(BezierEdgeBase)).call(this, options, body, labelModule));
  }

  /**
   * This function uses binary search to look for the point where the bezier curve crosses the border of the node.
   *
   * @param {Node} nearNode
   * @param {CanvasRenderingContext2D} ctx
   * @param {Node} viaNode
   * @returns {*}
   * @private
   */


  (0, _createClass3['default'])(BezierEdgeBase, [{
    key: '_findBorderPositionBezier',
    value: function _findBorderPositionBezier(nearNode, ctx) {
      var viaNode = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this._getViaCoordinates();

      var maxIterations = 10;
      var iteration = 0;
      var low = 0;
      var high = 1;
      var pos, angle, distanceToBorder, distanceToPoint, difference;
      var threshold = 0.2;
      var node = this.to;
      var from = false;
      if (nearNode.id === this.from.id) {
        node = this.from;
        from = true;
      }

      while (low <= high && iteration < maxIterations) {
        var middle = (low + high) * 0.5;

        pos = this.getPoint(middle, viaNode);
        angle = Math.atan2(node.y - pos.y, node.x - pos.x);
        distanceToBorder = node.distanceToBorder(ctx, angle);
        distanceToPoint = Math.sqrt(Math.pow(pos.x - node.x, 2) + Math.pow(pos.y - node.y, 2));
        difference = distanceToBorder - distanceToPoint;
        if (Math.abs(difference) < threshold) {
          break; // found
        } else if (difference < 0) {
          // distance to nodes is larger than distance to border --> t needs to be bigger if we're looking at the to node.
          if (from === false) {
            low = middle;
          } else {
            high = middle;
          }
        } else {
          if (from === false) {
            high = middle;
          } else {
            low = middle;
          }
        }

        iteration++;
      }
      pos.t = middle;

      return pos;
    }

    /**
     * Calculate the distance between a point (x3,y3) and a line segment from
     * (x1,y1) to (x2,y2).
     * http://stackoverflow.com/questions/849211/shortest-distancae-between-a-point-and-a-line-segment
     * @param {number} x1 from x
     * @param {number} y1 from y
     * @param {number} x2 to x
     * @param {number} y2 to y
     * @param {number} x3 point to check x
     * @param {number} y3 point to check y
     * @param {Node} via
     * @returns {number}
     * @private
     */

  }, {
    key: '_getDistanceToBezierEdge',
    value: function _getDistanceToBezierEdge(x1, y1, x2, y2, x3, y3, via) {
      // x3,y3 is the point
      var minDistance = 1e9;
      var distance = void 0;
      var i = void 0,
          t = void 0,
          x = void 0,
          y = void 0;
      var lastX = x1;
      var lastY = y1;
      for (i = 1; i < 10; i++) {
        t = 0.1 * i;
        x = Math.pow(1 - t, 2) * x1 + 2 * t * (1 - t) * via.x + Math.pow(t, 2) * x2;
        y = Math.pow(1 - t, 2) * y1 + 2 * t * (1 - t) * via.y + Math.pow(t, 2) * y2;
        if (i > 0) {
          distance = this._getDistanceToLine(lastX, lastY, x, y, x3, y3);
          minDistance = distance < minDistance ? distance : minDistance;
        }
        lastX = x;
        lastY = y;
      }

      return minDistance;
    }

    /**
     * Draw a bezier curve between two nodes
     *
     * The method accepts zero, one or two control points.
     * Passing zero control points just draws a straight line
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {Object}           values   | options for shadow drawing
     * @param {Object|undefined} viaNode1 | first control point for curve drawing
     * @param {Object|undefined} viaNode2 | second control point for curve drawing
     *
     * @protected
     */

  }, {
    key: '_bezierCurve',
    value: function _bezierCurve(ctx, values, viaNode1, viaNode2) {
      var hasNode1 = viaNode1 !== undefined && viaNode1.x !== undefined;
      var hasNode2 = viaNode2 !== undefined && viaNode2.x !== undefined;

      ctx.beginPath();
      ctx.moveTo(this.fromPoint.x, this.fromPoint.y);

      if (hasNode1 && hasNode2) {
        ctx.bezierCurveTo(viaNode1.x, viaNode1.y, viaNode2.x, viaNode2.y, this.toPoint.x, this.toPoint.y);
      } else if (hasNode1) {
        ctx.quadraticCurveTo(viaNode1.x, viaNode1.y, this.toPoint.x, this.toPoint.y);
      } else {
        // fallback to normal straight edge
        ctx.lineTo(this.toPoint.x, this.toPoint.y);
      }

      // draw shadow if enabled
      this.enableShadow(ctx, values);
      ctx.stroke();
      this.disableShadow(ctx, values);
    }

    /**
     *
     * @returns {*|{x, y}|{x: undefined, y: undefined}}
     */

  }, {
    key: 'getViaNode',
    value: function getViaNode() {
      return this._getViaCoordinates();
    }
  }]);
  return BezierEdgeBase;
}(_EdgeBase3['default']);

exports['default'] = BezierEdgeBase;

/***/ }),
/* 76 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

var util = __webpack_require__(2);

/**
 * Utility Class
 */

var NetworkUtil = function () {
  /**
   * @ignore
   */
  function NetworkUtil() {
    (0, _classCallCheck3["default"])(this, NetworkUtil);
  }

  /**
   * Find the center position of the network considering the bounding boxes
   *
   * @param {Array.<Node>} allNodes
   * @param {Array.<Node>} [specificNodes=[]]
   * @returns {{minX: number, maxX: number, minY: number, maxY: number}}
   * @static
   */


  (0, _createClass3["default"])(NetworkUtil, null, [{
    key: "getRange",
    value: function getRange(allNodes) {
      var specificNodes = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];

      var minY = 1e9,
          maxY = -1e9,
          minX = 1e9,
          maxX = -1e9,
          node;
      if (specificNodes.length > 0) {
        for (var i = 0; i < specificNodes.length; i++) {
          node = allNodes[specificNodes[i]];
          if (minX > node.shape.boundingBox.left) {
            minX = node.shape.boundingBox.left;
          }
          if (maxX < node.shape.boundingBox.right) {
            maxX = node.shape.boundingBox.right;
          }
          if (minY > node.shape.boundingBox.top) {
            minY = node.shape.boundingBox.top;
          } // top is negative, bottom is positive
          if (maxY < node.shape.boundingBox.bottom) {
            maxY = node.shape.boundingBox.bottom;
          } // top is negative, bottom is positive
        }
      }

      if (minX === 1e9 && maxX === -1e9 && minY === 1e9 && maxY === -1e9) {
        minY = 0, maxY = 0, minX = 0, maxX = 0;
      }
      return { minX: minX, maxX: maxX, minY: minY, maxY: maxY };
    }

    /**
     * Find the center position of the network
     *
     * @param {Array.<Node>} allNodes
     * @param {Array.<Node>} [specificNodes=[]]
     * @returns {{minX: number, maxX: number, minY: number, maxY: number}}
     * @static
     */

  }, {
    key: "getRangeCore",
    value: function getRangeCore(allNodes) {
      var specificNodes = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : [];

      var minY = 1e9,
          maxY = -1e9,
          minX = 1e9,
          maxX = -1e9,
          node;
      if (specificNodes.length > 0) {
        for (var i = 0; i < specificNodes.length; i++) {
          node = allNodes[specificNodes[i]];
          if (minX > node.x) {
            minX = node.x;
          }
          if (maxX < node.x) {
            maxX = node.x;
          }
          if (minY > node.y) {
            minY = node.y;
          } // top is negative, bottom is positive
          if (maxY < node.y) {
            maxY = node.y;
          } // top is negative, bottom is positive
        }
      }

      if (minX === 1e9 && maxX === -1e9 && minY === 1e9 && maxY === -1e9) {
        minY = 0, maxY = 0, minX = 0, maxX = 0;
      }
      return { minX: minX, maxX: maxX, minY: minY, maxY: maxY };
    }

    /**
     * @param {object} range = {minX: minX, maxX: maxX, minY: minY, maxY: maxY};
     * @returns {{x: number, y: number}}
     * @static
     */

  }, {
    key: "findCenter",
    value: function findCenter(range) {
      return { x: 0.5 * (range.maxX + range.minX),
        y: 0.5 * (range.maxY + range.minY) };
    }

    /**
     * This returns a clone of the options or options of the edge or node to be used for construction of new edges or check functions for new nodes.
     * @param {vis.Item} item
     * @param {'node'|undefined} type
     * @returns {{}}
     * @static
     */

  }, {
    key: "cloneOptions",
    value: function cloneOptions(item, type) {
      var clonedOptions = {};
      if (type === undefined || type === 'node') {
        util.deepExtend(clonedOptions, item.options, true);
        clonedOptions.x = item.x;
        clonedOptions.y = item.y;
        clonedOptions.amountOfConnections = item.edges.length;
      } else {
        util.deepExtend(clonedOptions, item.options, true);
      }
      return clonedOptions;
    }
  }]);
  return NetworkUtil;
}();

exports["default"] = NetworkUtil;

/***/ }),
/* 77 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = { "default": __webpack_require__(124), __esModule: true };

/***/ }),
/* 78 */
/***/ (function(module, exports, __webpack_require__) {

// fallback for non-array-like ES3 and non-enumerable old V8 strings
var cof = __webpack_require__(50);
// eslint-disable-next-line no-prototype-builtins
module.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
  return cof(it) == 'String' ? it.split('') : Object(it);
};


/***/ }),
/* 79 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

var LIBRARY = __webpack_require__(52);
var $export = __webpack_require__(17);
var redefine = __webpack_require__(83);
var hide = __webpack_require__(26);
var has = __webpack_require__(22);
var Iterators = __webpack_require__(31);
var $iterCreate = __webpack_require__(129);
var setToStringTag = __webpack_require__(59);
var getPrototypeOf = __webpack_require__(85);
var ITERATOR = __webpack_require__(13)('iterator');
var BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`
var FF_ITERATOR = '@@iterator';
var KEYS = 'keys';
var VALUES = 'values';

var returnThis = function () { return this; };

module.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
  $iterCreate(Constructor, NAME, next);
  var getMethod = function (kind) {
    if (!BUGGY && kind in proto) return proto[kind];
    switch (kind) {
      case KEYS: return function keys() { return new Constructor(this, kind); };
      case VALUES: return function values() { return new Constructor(this, kind); };
    } return function entries() { return new Constructor(this, kind); };
  };
  var TAG = NAME + ' Iterator';
  var DEF_VALUES = DEFAULT == VALUES;
  var VALUES_BUG = false;
  var proto = Base.prototype;
  var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];
  var $default = $native || getMethod(DEFAULT);
  var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;
  var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;
  var methods, key, IteratorPrototype;
  // Fix native
  if ($anyNative) {
    IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));
    if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {
      // Set @@toStringTag to native iterators
      setToStringTag(IteratorPrototype, TAG, true);
      // fix for some old engines
      if (!LIBRARY && !has(IteratorPrototype, ITERATOR)) hide(IteratorPrototype, ITERATOR, returnThis);
    }
  }
  // fix Array#{values, @@iterator}.name in V8 / FF
  if (DEF_VALUES && $native && $native.name !== VALUES) {
    VALUES_BUG = true;
    $default = function values() { return $native.call(this); };
  }
  // Define iterator
  if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
    hide(proto, ITERATOR, $default);
  }
  // Plug for library
  Iterators[NAME] = $default;
  Iterators[TAG] = returnThis;
  if (DEFAULT) {
    methods = {
      values: DEF_VALUES ? $default : getMethod(VALUES),
      keys: IS_SET ? $default : getMethod(KEYS),
      entries: $entries
    };
    if (FORCED) for (key in methods) {
      if (!(key in proto)) redefine(proto, key, methods[key]);
    } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);
  }
  return methods;
};


/***/ }),
/* 80 */
/***/ (function(module, exports, __webpack_require__) {

// optional / simple context binding
var aFunction = __webpack_require__(128);
module.exports = function (fn, that, length) {
  aFunction(fn);
  if (that === undefined) return fn;
  switch (length) {
    case 1: return function (a) {
      return fn.call(that, a);
    };
    case 2: return function (a, b) {
      return fn.call(that, a, b);
    };
    case 3: return function (a, b, c) {
      return fn.call(that, a, b, c);
    };
  }
  return function (/* ...args */) {
    return fn.apply(that, arguments);
  };
};


/***/ }),
/* 81 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = !__webpack_require__(21) && !__webpack_require__(28)(function () {
  return Object.defineProperty(__webpack_require__(82)('div'), 'a', { get: function () { return 7; } }).a != 7;
});


/***/ }),
/* 82 */
/***/ (function(module, exports, __webpack_require__) {

var isObject = __webpack_require__(32);
var document = __webpack_require__(18).document;
// typeof document.createElement is 'object' in old IE
var is = isObject(document) && isObject(document.createElement);
module.exports = function (it) {
  return is ? document.createElement(it) : {};
};


/***/ }),
/* 83 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = __webpack_require__(26);


/***/ }),
/* 84 */
/***/ (function(module, exports, __webpack_require__) {

var has = __webpack_require__(22);
var toIObject = __webpack_require__(25);
var arrayIndexOf = __webpack_require__(131)(false);
var IE_PROTO = __webpack_require__(56)('IE_PROTO');

module.exports = function (object, names) {
  var O = toIObject(object);
  var i = 0;
  var result = [];
  var key;
  for (key in O) if (key != IE_PROTO) has(O, key) && result.push(key);
  // Don't enum bug & hidden keys
  while (names.length > i) if (has(O, key = names[i++])) {
    ~arrayIndexOf(result, key) || result.push(key);
  }
  return result;
};


/***/ }),
/* 85 */
/***/ (function(module, exports, __webpack_require__) {

// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)
var has = __webpack_require__(22);
var toObject = __webpack_require__(41);
var IE_PROTO = __webpack_require__(56)('IE_PROTO');
var ObjectProto = Object.prototype;

module.exports = Object.getPrototypeOf || function (O) {
  O = toObject(O);
  if (has(O, IE_PROTO)) return O[IE_PROTO];
  if (typeof O.constructor == 'function' && O instanceof O.constructor) {
    return O.constructor.prototype;
  } return O instanceof Object ? ObjectProto : null;
};


/***/ }),
/* 86 */
/***/ (function(module, exports, __webpack_require__) {

// getting tag from 19.1.3.6 Object.prototype.toString()
var cof = __webpack_require__(50);
var TAG = __webpack_require__(13)('toStringTag');
// ES3 wrong here
var ARG = cof(function () { return arguments; }()) == 'Arguments';

// fallback for IE11 Script Access Denied error
var tryGet = function (it, key) {
  try {
    return it[key];
  } catch (e) { /* empty */ }
};

module.exports = function (it) {
  var O, T, B;
  return it === undefined ? 'Undefined' : it === null ? 'Null'
    // @@toStringTag case
    : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T
    // builtinTag case
    : ARG ? cof(O)
    // ES3 arguments fallback
    : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
};


/***/ }),
/* 87 */
/***/ (function(module, exports, __webpack_require__) {

// most Object methods by ES6 should accept primitives
var $export = __webpack_require__(17);
var core = __webpack_require__(7);
var fails = __webpack_require__(28);
module.exports = function (KEY, exec) {
  var fn = (core.Object || {})[KEY] || Object[KEY];
  var exp = {};
  exp[KEY] = exec(fn);
  $export($export.S + $export.F * fails(function () { fn(1); }), 'Object', exp);
};


/***/ }),
/* 88 */
/***/ (function(module, exports, __webpack_require__) {

// 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)
var $keys = __webpack_require__(84);
var hiddenKeys = __webpack_require__(58).concat('length', 'prototype');

exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
  return $keys(O, hiddenKeys);
};


/***/ }),
/* 89 */
/***/ (function(module, exports, __webpack_require__) {

var pIE = __webpack_require__(42);
var createDesc = __webpack_require__(39);
var toIObject = __webpack_require__(25);
var toPrimitive = __webpack_require__(53);
var has = __webpack_require__(22);
var IE8_DOM_DEFINE = __webpack_require__(81);
var gOPD = Object.getOwnPropertyDescriptor;

exports.f = __webpack_require__(21) ? gOPD : function getOwnPropertyDescriptor(O, P) {
  O = toIObject(O);
  P = toPrimitive(P, true);
  if (IE8_DOM_DEFINE) try {
    return gOPD(O, P);
  } catch (e) { /* empty */ }
  if (has(O, P)) return createDesc(!pIE.f.call(O, P), O[P]);
};


/***/ }),
/* 90 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = { "default": __webpack_require__(162), __esModule: true };

/***/ }),
/* 91 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * @prototype Point2d
 * @param {number} [x]
 * @param {number} [y]
 */
function Point2d(x, y) {
  this.x = x !== undefined ? x : 0;
  this.y = y !== undefined ? y : 0;
}

module.exports = Point2d;

/***/ }),
/* 92 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var util = __webpack_require__(2);

/**
 * An html slider control with start/stop/prev/next buttons
 *
 * @constructor Slider
 * @param {Element} container  The element where the slider will be created
 * @param {Object} options   Available options:
 *                 {boolean} visible   If true (default) the
 *                           slider is visible.
 */
function Slider(container, options) {
  if (container === undefined) {
    throw new Error('No container element defined');
  }
  this.container = container;
  this.visible = options && options.visible != undefined ? options.visible : true;

  if (this.visible) {
    this.frame = document.createElement('DIV');
    //this.frame.style.backgroundColor = '#E5E5E5';
    this.frame.style.width = '100%';
    this.frame.style.position = 'relative';
    this.container.appendChild(this.frame);

    this.frame.prev = document.createElement('INPUT');
    this.frame.prev.type = 'BUTTON';
    this.frame.prev.value = 'Prev';
    this.frame.appendChild(this.frame.prev);

    this.frame.play = document.createElement('INPUT');
    this.frame.play.type = 'BUTTON';
    this.frame.play.value = 'Play';
    this.frame.appendChild(this.frame.play);

    this.frame.next = document.createElement('INPUT');
    this.frame.next.type = 'BUTTON';
    this.frame.next.value = 'Next';
    this.frame.appendChild(this.frame.next);

    this.frame.bar = document.createElement('INPUT');
    this.frame.bar.type = 'BUTTON';
    this.frame.bar.style.position = 'absolute';
    this.frame.bar.style.border = '1px solid red';
    this.frame.bar.style.width = '100px';
    this.frame.bar.style.height = '6px';
    this.frame.bar.style.borderRadius = '2px';
    this.frame.bar.style.MozBorderRadius = '2px';
    this.frame.bar.style.border = '1px solid #7F7F7F';
    this.frame.bar.style.backgroundColor = '#E5E5E5';
    this.frame.appendChild(this.frame.bar);

    this.frame.slide = document.createElement('INPUT');
    this.frame.slide.type = 'BUTTON';
    this.frame.slide.style.margin = '0px';
    this.frame.slide.value = ' ';
    this.frame.slide.style.position = 'relative';
    this.frame.slide.style.left = '-100px';
    this.frame.appendChild(this.frame.slide);

    // create events
    var me = this;
    this.frame.slide.onmousedown = function (event) {
      me._onMouseDown(event);
    };
    this.frame.prev.onclick = function (event) {
      me.prev(event);
    };
    this.frame.play.onclick = function (event) {
      me.togglePlay(event);
    };
    this.frame.next.onclick = function (event) {
      me.next(event);
    };
  }

  this.onChangeCallback = undefined;

  this.values = [];
  this.index = undefined;

  this.playTimeout = undefined;
  this.playInterval = 1000; // milliseconds
  this.playLoop = true;
}

/**
 * Select the previous index
 */
Slider.prototype.prev = function () {
  var index = this.getIndex();
  if (index > 0) {
    index--;
    this.setIndex(index);
  }
};

/**
 * Select the next index
 */
Slider.prototype.next = function () {
  var index = this.getIndex();
  if (index < this.values.length - 1) {
    index++;
    this.setIndex(index);
  }
};

/**
 * Select the next index
 */
Slider.prototype.playNext = function () {
  var start = new Date();

  var index = this.getIndex();
  if (index < this.values.length - 1) {
    index++;
    this.setIndex(index);
  } else if (this.playLoop) {
    // jump to the start
    index = 0;
    this.setIndex(index);
  }

  var end = new Date();
  var diff = end - start;

  // calculate how much time it to to set the index and to execute the callback
  // function.
  var interval = Math.max(this.playInterval - diff, 0);
  // document.title = diff // TODO: cleanup

  var me = this;
  this.playTimeout = setTimeout(function () {
    me.playNext();
  }, interval);
};

/**
 * Toggle start or stop playing
 */
Slider.prototype.togglePlay = function () {
  if (this.playTimeout === undefined) {
    this.play();
  } else {
    this.stop();
  }
};

/**
 * Start playing
 */
Slider.prototype.play = function () {
  // Test whether already playing
  if (this.playTimeout) return;

  this.playNext();

  if (this.frame) {
    this.frame.play.value = 'Stop';
  }
};

/**
 * Stop playing
 */
Slider.prototype.stop = function () {
  clearInterval(this.playTimeout);
  this.playTimeout = undefined;

  if (this.frame) {
    this.frame.play.value = 'Play';
  }
};

/**
 * Set a callback function which will be triggered when the value of the
 * slider bar has changed.
 *
 * @param {function} callback
 */
Slider.prototype.setOnChangeCallback = function (callback) {
  this.onChangeCallback = callback;
};

/**
 * Set the interval for playing the list
 * @param {number} interval   The interval in milliseconds
 */
Slider.prototype.setPlayInterval = function (interval) {
  this.playInterval = interval;
};

/**
 * Retrieve the current play interval
 * @return {number} interval   The interval in milliseconds
 */
Slider.prototype.getPlayInterval = function () {
  return this.playInterval;
};

/**
 * Set looping on or off
 * @param {boolean} doLoop  If true, the slider will jump to the start when
 *               the end is passed, and will jump to the end
 *               when the start is passed.
 *
 */
Slider.prototype.setPlayLoop = function (doLoop) {
  this.playLoop = doLoop;
};

/**
 * Execute the onchange callback function
 */
Slider.prototype.onChange = function () {
  if (this.onChangeCallback !== undefined) {
    this.onChangeCallback();
  }
};

/**
 * redraw the slider on the correct place
 */
Slider.prototype.redraw = function () {
  if (this.frame) {
    // resize the bar
    this.frame.bar.style.top = this.frame.clientHeight / 2 - this.frame.bar.offsetHeight / 2 + 'px';
    this.frame.bar.style.width = this.frame.clientWidth - this.frame.prev.clientWidth - this.frame.play.clientWidth - this.frame.next.clientWidth - 30 + 'px';

    // position the slider button
    var left = this.indexToLeft(this.index);
    this.frame.slide.style.left = left + 'px';
  }
};

/**
 * Set the list with values for the slider
 * @param {Array} values   A javascript array with values (any type)
 */
Slider.prototype.setValues = function (values) {
  this.values = values;

  if (this.values.length > 0) this.setIndex(0);else this.index = undefined;
};

/**
 * Select a value by its index
 * @param {number} index
 */
Slider.prototype.setIndex = function (index) {
  if (index < this.values.length) {
    this.index = index;

    this.redraw();
    this.onChange();
  } else {
    throw new Error('Index out of range');
  }
};

/**
 * retrieve the index of the currently selected vaue
 * @return {number} index
 */
Slider.prototype.getIndex = function () {
  return this.index;
};

/**
 * retrieve the currently selected value
 * @return {*} value
 */
Slider.prototype.get = function () {
  return this.values[this.index];
};

Slider.prototype._onMouseDown = function (event) {
  // only react on left mouse button down
  var leftButtonDown = event.which ? event.which === 1 : event.button === 1;
  if (!leftButtonDown) return;

  this.startClientX = event.clientX;
  this.startSlideX = parseFloat(this.frame.slide.style.left);

  this.frame.style.cursor = 'move';

  // add event listeners to handle moving the contents
  // we store the function onmousemove and onmouseup in the graph, so we can
  // remove the eventlisteners lateron in the function mouseUp()
  var me = this;
  this.onmousemove = function (event) {
    me._onMouseMove(event);
  };
  this.onmouseup = function (event) {
    me._onMouseUp(event);
  };
  util.addEventListener(document, 'mousemove', this.onmousemove);
  util.addEventListener(document, 'mouseup', this.onmouseup);
  util.preventDefault(event);
};

Slider.prototype.leftToIndex = function (left) {
  var width = parseFloat(this.frame.bar.style.width) - this.frame.slide.clientWidth - 10;
  var x = left - 3;

  var index = Math.round(x / width * (this.values.length - 1));
  if (index < 0) index = 0;
  if (index > this.values.length - 1) index = this.values.length - 1;

  return index;
};

Slider.prototype.indexToLeft = function (index) {
  var width = parseFloat(this.frame.bar.style.width) - this.frame.slide.clientWidth - 10;

  var x = index / (this.values.length - 1) * width;
  var left = x + 3;

  return left;
};

Slider.prototype._onMouseMove = function (event) {
  var diff = event.clientX - this.startClientX;
  var x = this.startSlideX + diff;

  var index = this.leftToIndex(x);

  this.setIndex(index);

  util.preventDefault();
};

Slider.prototype._onMouseUp = function (event) {
  // eslint-disable-line no-unused-vars
  this.frame.style.cursor = 'auto';

  // remove event listeners
  util.removeEventListener(document, 'mousemove', this.onmousemove);
  util.removeEventListener(document, 'mouseup', this.onmouseup);

  util.preventDefault();
};

module.exports = Slider;

/***/ }),
/* 93 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * @prototype StepNumber
 * The class StepNumber is an iterator for Numbers. You provide a start and end
 * value, and a best step size. StepNumber itself rounds to fixed values and
 * a finds the step that best fits the provided step.
 *
 * If prettyStep is true, the step size is chosen as close as possible to the
 * provided step, but being a round value like 1, 2, 5, 10, 20, 50, ....
 *
 * Example usage:
 *   var step = new StepNumber(0, 10, 2.5, true);
 *   step.start();
 *   while (!step.end()) {
 *   alert(step.getCurrent());
 *   step.next();
 *   }
 *
 * Version: 1.0
 *
 * @param {number} start     The start value
 * @param {number} end     The end value
 * @param {number} step    Optional. Step size. Must be a positive value.
 * @param {boolean} prettyStep Optional. If true, the step size is rounded
 *               To a pretty step size (like 1, 2, 5, 10, 20, 50, ...)
 */
function StepNumber(start, end, step, prettyStep) {
  // set default values
  this._start = 0;
  this._end = 0;
  this._step = 1;
  this.prettyStep = true;
  this.precision = 5;

  this._current = 0;
  this.setRange(start, end, step, prettyStep);
}

/**
 * Check for input values, to prevent disasters from happening
 *
 * Source: http://stackoverflow.com/a/1830844
 *
 * @param {string} n
 * @returns {boolean}
 */
StepNumber.prototype.isNumeric = function (n) {
  return !isNaN(parseFloat(n)) && isFinite(n);
};

/**
 * Set a new range: start, end and step.
 *
 * @param {number} start     The start value
 * @param {number} end     The end value
 * @param {number} step    Optional. Step size. Must be a positive value.
 * @param {boolean} prettyStep Optional. If true, the step size is rounded
 *               To a pretty step size (like 1, 2, 5, 10, 20, 50, ...)
 */
StepNumber.prototype.setRange = function (start, end, step, prettyStep) {
  if (!this.isNumeric(start)) {
    throw new Error('Parameter \'start\' is not numeric; value: ' + start);
  }
  if (!this.isNumeric(end)) {
    throw new Error('Parameter \'end\' is not numeric; value: ' + start);
  }
  if (!this.isNumeric(step)) {
    throw new Error('Parameter \'step\' is not numeric; value: ' + start);
  }

  this._start = start ? start : 0;
  this._end = end ? end : 0;

  this.setStep(step, prettyStep);
};

/**
 * Set a new step size
 * @param {number} step    New step size. Must be a positive value
 * @param {boolean} prettyStep Optional. If true, the provided step is rounded
 *               to a pretty step size (like 1, 2, 5, 10, 20, 50, ...)
 */
StepNumber.prototype.setStep = function (step, prettyStep) {
  if (step === undefined || step <= 0) return;

  if (prettyStep !== undefined) this.prettyStep = prettyStep;

  if (this.prettyStep === true) this._step = StepNumber.calculatePrettyStep(step);else this._step = step;
};

/**
 * Calculate a nice step size, closest to the desired step size.
 * Returns a value in one of the ranges 1*10^n, 2*10^n, or 5*10^n, where n is an
 * integer Number. For example 1, 2, 5, 10, 20, 50, etc...
 * @param {number}  step  Desired step size
 * @return {number}     Nice step size
 */
StepNumber.calculatePrettyStep = function (step) {
  var log10 = function log10(x) {
    return Math.log(x) / Math.LN10;
  };

  // try three steps (multiple of 1, 2, or 5
  var step1 = Math.pow(10, Math.round(log10(step))),
      step2 = 2 * Math.pow(10, Math.round(log10(step / 2))),
      step5 = 5 * Math.pow(10, Math.round(log10(step / 5)));

  // choose the best step (closest to minimum step)
  var prettyStep = step1;
  if (Math.abs(step2 - step) <= Math.abs(prettyStep - step)) prettyStep = step2;
  if (Math.abs(step5 - step) <= Math.abs(prettyStep - step)) prettyStep = step5;

  // for safety
  if (prettyStep <= 0) {
    prettyStep = 1;
  }

  return prettyStep;
};

/**
 * returns the current value of the step
 * @return {number} current value
 */
StepNumber.prototype.getCurrent = function () {
  return parseFloat(this._current.toPrecision(this.precision));
};

/**
 * returns the current step size
 * @return {number} current step size
 */
StepNumber.prototype.getStep = function () {
  return this._step;
};

/**
 * Set the current to its starting value.
 *
 * By default, this will be the largest value smaller than start, which
 * is a multiple of the step size.
 *
 * Parameters checkFirst is optional, default false.
 * If set to true, move the current value one step if smaller than start.
 *
 * @param {boolean} [checkFirst=false]
 */
StepNumber.prototype.start = function (checkFirst) {
  if (checkFirst === undefined) {
    checkFirst = false;
  }

  this._current = this._start - this._start % this._step;

  if (checkFirst) {
    if (this.getCurrent() < this._start) {
      this.next();
    }
  }
};

/**
 * Do a step, add the step size to the current value
 */
StepNumber.prototype.next = function () {
  this._current += this._step;
};

/**
 * Returns true whether the end is reached
 * @return {boolean}  True if the current value has passed the end value.
 */
StepNumber.prototype.end = function () {
  return this._current > this._end;
};

module.exports = StepNumber;

/***/ }),
/* 94 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

////////////////////////////////////////////////////////////////////////////////
// This modules handles the options for Graph3d.
//
////////////////////////////////////////////////////////////////////////////////
var util = __webpack_require__(2);
var Camera = __webpack_require__(95);
var Point3d = __webpack_require__(34);

// enumerate the available styles
var STYLE = {
  BAR: 0,
  BARCOLOR: 1,
  BARSIZE: 2,
  DOT: 3,
  DOTLINE: 4,
  DOTCOLOR: 5,
  DOTSIZE: 6,
  GRID: 7,
  LINE: 8,
  SURFACE: 9
};

// The string representations of the styles
var STYLENAME = {
  'dot': STYLE.DOT,
  'dot-line': STYLE.DOTLINE,
  'dot-color': STYLE.DOTCOLOR,
  'dot-size': STYLE.DOTSIZE,
  'line': STYLE.LINE,
  'grid': STYLE.GRID,
  'surface': STYLE.SURFACE,
  'bar': STYLE.BAR,
  'bar-color': STYLE.BARCOLOR,
  'bar-size': STYLE.BARSIZE
};

/**
 * Field names in the options hash which are of relevance to the user.
 *
 * Specifically, these are the fields which require no special handling,
 * and can be directly copied over.
 */
var OPTIONKEYS = ['width', 'height', 'filterLabel', 'legendLabel', 'xLabel', 'yLabel', 'zLabel', 'xValueLabel', 'yValueLabel', 'zValueLabel', 'showXAxis', 'showYAxis', 'showZAxis', 'showGrid', 'showPerspective', 'showShadow', 'keepAspectRatio', 'verticalRatio', 'dotSizeRatio', 'dotSizeMinFraction', 'dotSizeMaxFraction', 'showAnimationControls', 'animationInterval', 'animationPreload', 'animationAutoStart', 'axisColor', 'gridColor', 'xCenter', 'yCenter'];

/**
 * Field names in the options hash which are of relevance to the user.
 *
 * Same as OPTIONKEYS, but internally these fields are stored with 
 * prefix 'default' in the name.
 */
var PREFIXEDOPTIONKEYS = ['xBarWidth', 'yBarWidth', 'valueMin', 'valueMax', 'xMin', 'xMax', 'xStep', 'yMin', 'yMax', 'yStep', 'zMin', 'zMax', 'zStep'];

// Placeholder for DEFAULTS reference
var DEFAULTS = undefined;

/**
 * Check if given hash is empty.
 *
 * Source: http://stackoverflow.com/a/679937
 *
 * @param {object} obj
 * @returns {boolean}
 */
function isEmpty(obj) {
  for (var prop in obj) {
    if (obj.hasOwnProperty(prop)) return false;
  }

  return true;
}

/**
 * Make first letter of parameter upper case.
 *
 * Source: http://stackoverflow.com/a/1026087
 *
 * @param {string} str
 * @returns {string}
 */
function capitalize(str) {
  if (str === undefined || str === "" || typeof str != "string") {
    return str;
  }

  return str.charAt(0).toUpperCase() + str.slice(1);
}

/**
 * Add a prefix to a field name, taking style guide into account
 *
 * @param {string} prefix
 * @param {string} fieldName
 * @returns {string}
 */
function prefixFieldName(prefix, fieldName) {
  if (prefix === undefined || prefix === "") {
    return fieldName;
  }

  return prefix + capitalize(fieldName);
}

/**
 * Forcibly copy fields from src to dst in a controlled manner.
 *
 * A given field in dst will always be overwitten. If this field
 * is undefined or not present in src, the field in dst will 
 * be explicitly set to undefined.
 * 
 * The intention here is to be able to reset all option fields.
 * 
 * Only the fields mentioned in array 'fields' will be handled.
 *
 * @param {object} src
 * @param {object} dst
 * @param {array<string>} fields array with names of fields to copy
 * @param {string} [prefix] prefix to use for the target fields.
 */
function forceCopy(src, dst, fields, prefix) {
  var srcKey;
  var dstKey;

  for (var i = 0; i < fields.length; ++i) {
    srcKey = fields[i];
    dstKey = prefixFieldName(prefix, srcKey);

    dst[dstKey] = src[srcKey];
  }
}

/**
 * Copy fields from src to dst in a safe and controlled manner.
 *
 * Only the fields mentioned in array 'fields' will be copied over,
 * and only if these are actually defined.
 *
 * @param {object} src
 * @param {object} dst
 * @param {array<string>} fields array with names of fields to copy
 * @param {string} [prefix] prefix to use for the target fields.
 */
function safeCopy(src, dst, fields, prefix) {
  var srcKey;
  var dstKey;

  for (var i = 0; i < fields.length; ++i) {
    srcKey = fields[i];
    if (src[srcKey] === undefined) continue;

    dstKey = prefixFieldName(prefix, srcKey);

    dst[dstKey] = src[srcKey];
  }
}

/**
 * Initialize dst with the values in src.
 *
 * src is the hash with the default values. 
 * A reference DEFAULTS to this hash is stored locally for 
 * further handling.
 *
 * For now, dst is assumed to be a Graph3d instance.
 * @param {object} src
 * @param {object} dst
 */
function setDefaults(src, dst) {
  if (src === undefined || isEmpty(src)) {
    throw new Error('No DEFAULTS passed');
  }
  if (dst === undefined) {
    throw new Error('No dst passed');
  }

  // Remember defaults for future reference
  DEFAULTS = src;

  // Handle the defaults which can be simply copied over
  forceCopy(src, dst, OPTIONKEYS);
  forceCopy(src, dst, PREFIXEDOPTIONKEYS, 'default');

  // Handle the more complex ('special') fields
  setSpecialSettings(src, dst);

  // Following are internal fields, not part of the user settings
  dst.margin = 10; // px
  dst.showGrayBottom = false; // TODO: this does not work correctly
  dst.showTooltip = false;
  dst.onclick_callback = null;
  dst.eye = new Point3d(0, 0, -1); // TODO: set eye.z about 3/4 of the width of the window?
}

/**
 *
 * @param {object} options
 * @param {object} dst
 */
function setOptions(options, dst) {
  if (options === undefined) {
    return;
  }
  if (dst === undefined) {
    throw new Error('No dst passed');
  }

  if (DEFAULTS === undefined || isEmpty(DEFAULTS)) {
    throw new Error('DEFAULTS not set for module Settings');
  }

  // Handle the parameters which can be simply copied over
  safeCopy(options, dst, OPTIONKEYS);
  safeCopy(options, dst, PREFIXEDOPTIONKEYS, 'default');

  // Handle the more complex ('special') fields
  setSpecialSettings(options, dst);
}

/**
 * Special handling for certain parameters
 *
 * 'Special' here means: setting requires more than a simple copy
 *
 * @param {object} src
 * @param {object} dst
 */
function setSpecialSettings(src, dst) {
  if (src.backgroundColor !== undefined) {
    setBackgroundColor(src.backgroundColor, dst);
  }

  setDataColor(src.dataColor, dst);
  setStyle(src.style, dst);
  setShowLegend(src.showLegend, dst);
  setCameraPosition(src.cameraPosition, dst);

  // As special fields go, this is an easy one; just a translation of the name.
  // Can't use this.tooltip directly, because that field exists internally
  if (src.tooltip !== undefined) {
    dst.showTooltip = src.tooltip;
  }
  if (src.onclick != undefined) {
    dst.onclick_callback = src.onclick;
  }

  if (src.tooltipStyle !== undefined) {
    util.selectiveDeepExtend(['tooltipStyle'], dst, src);
  }
}

/**
 * Set the value of setting 'showLegend'
 *
 * This depends on the value of the style fields, so it must be called
 * after the style field has been initialized.
 *
 * @param {boolean} showLegend
 * @param {object} dst
 */
function setShowLegend(showLegend, dst) {
  if (showLegend === undefined) {
    // If the default was auto, make a choice for this field
    var isAutoByDefault = DEFAULTS.showLegend === undefined;

    if (isAutoByDefault) {
      // these styles default to having legends
      var isLegendGraphStyle = dst.style === STYLE.DOTCOLOR || dst.style === STYLE.DOTSIZE;

      dst.showLegend = isLegendGraphStyle;
    } else {
      // Leave current value as is
    }
  } else {
    dst.showLegend = showLegend;
  }
}

/**
 * Retrieve the style index from given styleName
 * @param {string} styleName  Style name such as 'dot', 'grid', 'dot-line'
 * @return {number} styleNumber Enumeration value representing the style, or -1
 *                when not found
 */
function getStyleNumberByName(styleName) {
  var number = STYLENAME[styleName];

  if (number === undefined) {
    return -1;
  }

  return number;
}

/**
 * Check if given number is a valid style number.
 *
 * @param {string | number} style
 * @return {boolean} true if valid, false otherwise
 */
function checkStyleNumber(style) {
  var valid = false;

  for (var n in STYLE) {
    if (STYLE[n] === style) {
      valid = true;
      break;
    }
  }

  return valid;
}

/**
 *
 * @param {string | number} style
 * @param {Object} dst
 */
function setStyle(style, dst) {
  if (style === undefined) {
    return; // Nothing to do
  }

  var styleNumber;

  if (typeof style === 'string') {
    styleNumber = getStyleNumberByName(style);

    if (styleNumber === -1) {
      throw new Error('Style \'' + style + '\' is invalid');
    }
  } else {
    // Do a pedantic check on style number value
    if (!checkStyleNumber(style)) {
      throw new Error('Style \'' + style + '\' is invalid');
    }

    styleNumber = style;
  }

  dst.style = styleNumber;
}

/**
 * Set the background styling for the graph
 * @param {string | {fill: string, stroke: string, strokeWidth: string}} backgroundColor
 * @param {Object} dst
 */
function setBackgroundColor(backgroundColor, dst) {
  var fill = 'white';
  var stroke = 'gray';
  var strokeWidth = 1;

  if (typeof backgroundColor === 'string') {
    fill = backgroundColor;
    stroke = 'none';
    strokeWidth = 0;
  } else if ((typeof backgroundColor === 'undefined' ? 'undefined' : (0, _typeof3['default'])(backgroundColor)) === 'object') {
    if (backgroundColor.fill !== undefined) fill = backgroundColor.fill;
    if (backgroundColor.stroke !== undefined) stroke = backgroundColor.stroke;
    if (backgroundColor.strokeWidth !== undefined) strokeWidth = backgroundColor.strokeWidth;
  } else {
    throw new Error('Unsupported type of backgroundColor');
  }

  dst.frame.style.backgroundColor = fill;
  dst.frame.style.borderColor = stroke;
  dst.frame.style.borderWidth = strokeWidth + 'px';
  dst.frame.style.borderStyle = 'solid';
}

/**
 *
 * @param {string | Object} dataColor
 * @param {Object} dst
 */
function setDataColor(dataColor, dst) {
  if (dataColor === undefined) {
    return; // Nothing to do
  }

  if (dst.dataColor === undefined) {
    dst.dataColor = {};
  }

  if (typeof dataColor === 'string') {
    dst.dataColor.fill = dataColor;
    dst.dataColor.stroke = dataColor;
  } else {
    if (dataColor.fill) {
      dst.dataColor.fill = dataColor.fill;
    }
    if (dataColor.stroke) {
      dst.dataColor.stroke = dataColor.stroke;
    }
    if (dataColor.strokeWidth !== undefined) {
      dst.dataColor.strokeWidth = dataColor.strokeWidth;
    }
  }
}

/**
 *
 * @param {Object} cameraPosition
 * @param {Object} dst
 */
function setCameraPosition(cameraPosition, dst) {
  var camPos = cameraPosition;
  if (camPos === undefined) {
    return;
  }

  if (dst.camera === undefined) {
    dst.camera = new Camera();
  }

  dst.camera.setArmRotation(camPos.horizontal, camPos.vertical);
  dst.camera.setArmLength(camPos.distance);
}

module.exports.STYLE = STYLE;
module.exports.setDefaults = setDefaults;
module.exports.setOptions = setOptions;
module.exports.setCameraPosition = setCameraPosition;

/***/ }),
/* 95 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _sign = __webpack_require__(165);

var _sign2 = _interopRequireDefault(_sign);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var Point3d = __webpack_require__(34);

/**
 * The camera is mounted on a (virtual) camera arm. The camera arm can rotate
 * The camera is always looking in the direction of the origin of the arm.
 * This way, the camera always rotates around one fixed point, the location
 * of the camera arm.
 *
 * Documentation:
 *   http://en.wikipedia.org/wiki/3D_projection
 * @class Camera
 */
function Camera() {
  this.armLocation = new Point3d();
  this.armRotation = {};
  this.armRotation.horizontal = 0;
  this.armRotation.vertical = 0;
  this.armLength = 1.7;
  this.cameraOffset = new Point3d();
  this.offsetMultiplier = 0.6;

  this.cameraLocation = new Point3d();
  this.cameraRotation = new Point3d(0.5 * Math.PI, 0, 0);

  this.calculateCameraOrientation();
}

/**
 * Set offset camera in camera coordinates
 * @param {number} x offset by camera horisontal
 * @param {number} y offset by camera vertical
 */
Camera.prototype.setOffset = function (x, y) {
  var abs = Math.abs,
      sign = _sign2['default'],
      mul = this.offsetMultiplier,
      border = this.armLength * mul;

  if (abs(x) > border) {
    x = sign(x) * border;
  }
  if (abs(y) > border) {
    y = sign(y) * border;
  }
  this.cameraOffset.x = x;
  this.cameraOffset.y = y;
  this.calculateCameraOrientation();
};

/**
 * Get camera offset by horizontal and vertical
 * @returns {number}
 */
Camera.prototype.getOffset = function () {
  return this.cameraOffset;
};

/**
 * Set the location (origin) of the arm
 * @param {number} x  Normalized value of x
 * @param {number} y  Normalized value of y
 * @param {number} z  Normalized value of z
 */
Camera.prototype.setArmLocation = function (x, y, z) {
  this.armLocation.x = x;
  this.armLocation.y = y;
  this.armLocation.z = z;

  this.calculateCameraOrientation();
};

/**
 * Set the rotation of the camera arm
 * @param {number} horizontal   The horizontal rotation, between 0 and 2*PI.
 *                Optional, can be left undefined.
 * @param {number} vertical   The vertical rotation, between 0 and 0.5*PI
 *                if vertical=0.5*PI, the graph is shown from the
 *                top. Optional, can be left undefined.
 */
Camera.prototype.setArmRotation = function (horizontal, vertical) {
  if (horizontal !== undefined) {
    this.armRotation.horizontal = horizontal;
  }

  if (vertical !== undefined) {
    this.armRotation.vertical = vertical;
    if (this.armRotation.vertical < 0) this.armRotation.vertical = 0;
    if (this.armRotation.vertical > 0.5 * Math.PI) this.armRotation.vertical = 0.5 * Math.PI;
  }

  if (horizontal !== undefined || vertical !== undefined) {
    this.calculateCameraOrientation();
  }
};

/**
 * Retrieve the current arm rotation
 * @return {object}   An object with parameters horizontal and vertical
 */
Camera.prototype.getArmRotation = function () {
  var rot = {};
  rot.horizontal = this.armRotation.horizontal;
  rot.vertical = this.armRotation.vertical;

  return rot;
};

/**
 * Set the (normalized) length of the camera arm.
 * @param {number} length A length between 0.71 and 5.0
 */
Camera.prototype.setArmLength = function (length) {
  if (length === undefined) return;

  this.armLength = length;

  // Radius must be larger than the corner of the graph,
  // which has a distance of sqrt(0.5^2+0.5^2) = 0.71 from the center of the
  // graph
  if (this.armLength < 0.71) this.armLength = 0.71;
  if (this.armLength > 5.0) this.armLength = 5.0;

  this.setOffset(this.cameraOffset.x, this.cameraOffset.y);
  this.calculateCameraOrientation();
};

/**
 * Retrieve the arm length
 * @return {number} length
 */
Camera.prototype.getArmLength = function () {
  return this.armLength;
};

/**
 * Retrieve the camera location
 * @return {Point3d} cameraLocation
 */
Camera.prototype.getCameraLocation = function () {
  return this.cameraLocation;
};

/**
 * Retrieve the camera rotation
 * @return {Point3d} cameraRotation
 */
Camera.prototype.getCameraRotation = function () {
  return this.cameraRotation;
};

/**
 * Calculate the location and rotation of the camera based on the
 * position and orientation of the camera arm
 */
Camera.prototype.calculateCameraOrientation = function () {
  // calculate location of the camera
  this.cameraLocation.x = this.armLocation.x - this.armLength * Math.sin(this.armRotation.horizontal) * Math.cos(this.armRotation.vertical);
  this.cameraLocation.y = this.armLocation.y - this.armLength * Math.cos(this.armRotation.horizontal) * Math.cos(this.armRotation.vertical);
  this.cameraLocation.z = this.armLocation.z + this.armLength * Math.sin(this.armRotation.vertical);

  // calculate rotation of the camera
  this.cameraRotation.x = Math.PI / 2 - this.armRotation.vertical;
  this.cameraRotation.y = 0;
  this.cameraRotation.z = -this.armRotation.horizontal;

  var xa = this.cameraRotation.x;
  var za = this.cameraRotation.z;
  var dx = this.cameraOffset.x;
  var dy = this.cameraOffset.y;
  var sin = Math.sin,
      cos = Math.cos;

  this.cameraLocation.x = this.cameraLocation.x + dx * cos(za) + dy * -sin(za) * cos(xa);
  this.cameraLocation.y = this.cameraLocation.y + dx * sin(za) + dy * cos(za) * cos(xa);
  this.cameraLocation.z = this.cameraLocation.z + dy * sin(xa);
};

module.exports = Camera;

/***/ }),
/* 96 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var DataView = __webpack_require__(12);

/**
 * @class Filter
 *
 * @param {DataGroup} dataGroup the data group 
 * @param {number}  column             The index of the column to be filtered
 * @param {Graph3d} graph              The graph
 */
function Filter(dataGroup, column, graph) {
  this.dataGroup = dataGroup;
  this.column = column;
  this.graph = graph; // the parent graph

  this.index = undefined;
  this.value = undefined;

  // read all distinct values and select the first one
  this.values = dataGroup.getDistinctValues(this.column);

  if (this.values.length > 0) {
    this.selectValue(0);
  }

  // create an array with the filtered datapoints. this will be loaded afterwards
  this.dataPoints = [];

  this.loaded = false;
  this.onLoadCallback = undefined;

  if (graph.animationPreload) {
    this.loaded = false;
    this.loadInBackground();
  } else {
    this.loaded = true;
  }
}

/**
 * Return the label
 * @return {string} label
 */
Filter.prototype.isLoaded = function () {
  return this.loaded;
};

/**
 * Return the loaded progress
 * @return {number} percentage between 0 and 100
 */
Filter.prototype.getLoadedProgress = function () {
  var len = this.values.length;

  var i = 0;
  while (this.dataPoints[i]) {
    i++;
  }

  return Math.round(i / len * 100);
};

/**
 * Return the label
 * @return {string} label
 */
Filter.prototype.getLabel = function () {
  return this.graph.filterLabel;
};

/**
 * Return the columnIndex of the filter
 * @return {number} columnIndex
 */
Filter.prototype.getColumn = function () {
  return this.column;
};

/**
 * Return the currently selected value. Returns undefined if there is no selection
 * @return {*} value
 */
Filter.prototype.getSelectedValue = function () {
  if (this.index === undefined) return undefined;

  return this.values[this.index];
};

/**
 * Retrieve all values of the filter
 * @return {Array} values
 */
Filter.prototype.getValues = function () {
  return this.values;
};

/**
 * Retrieve one value of the filter
 * @param {number}  index
 * @return {*} value
 */
Filter.prototype.getValue = function (index) {
  if (index >= this.values.length) throw new Error('Index out of range');

  return this.values[index];
};

/**
 * Retrieve the (filtered) dataPoints for the currently selected filter index
 * @param {number} [index] (optional)
 * @return {Array} dataPoints
 */
Filter.prototype._getDataPoints = function (index) {
  if (index === undefined) index = this.index;

  if (index === undefined) return [];

  var dataPoints;
  if (this.dataPoints[index]) {
    dataPoints = this.dataPoints[index];
  } else {
    var f = {};
    f.column = this.column;
    f.value = this.values[index];

    var dataView = new DataView(this.dataGroup.getDataSet(), { filter: function filter(item) {
        return item[f.column] == f.value;
      } }).get();
    dataPoints = this.dataGroup._getDataPoints(dataView);

    this.dataPoints[index] = dataPoints;
  }

  return dataPoints;
};

/**
 * Set a callback function when the filter is fully loaded.
 *
 * @param {function} callback
 */
Filter.prototype.setOnLoadCallback = function (callback) {
  this.onLoadCallback = callback;
};

/**
 * Add a value to the list with available values for this filter
 * No double entries will be created.
 * @param {number} index
 */
Filter.prototype.selectValue = function (index) {
  if (index >= this.values.length) throw new Error('Index out of range');

  this.index = index;
  this.value = this.values[index];
};

/**
 * Load all filtered rows in the background one by one
 * Start this method without providing an index!
 *
 * @param {number} [index=0]
 */
Filter.prototype.loadInBackground = function (index) {
  if (index === undefined) index = 0;

  var frame = this.graph.frame;

  if (index < this.values.length) {
    // create a progress box
    if (frame.progress === undefined) {
      frame.progress = document.createElement('DIV');
      frame.progress.style.position = 'absolute';
      frame.progress.style.color = 'gray';
      frame.appendChild(frame.progress);
    }
    var progress = this.getLoadedProgress();
    frame.progress.innerHTML = 'Loading animation... ' + progress + '%';
    // TODO: this is no nice solution...
    frame.progress.style.bottom = 60 + 'px'; // TODO: use height of slider
    frame.progress.style.left = 10 + 'px';

    var me = this;
    setTimeout(function () {
      me.loadInBackground(index + 1);
    }, 10);
    this.loaded = false;
  } else {
    this.loaded = true;

    // remove the progress box
    if (frame.progress !== undefined) {
      frame.removeChild(frame.progress);
      frame.progress = undefined;
    }

    if (this.onLoadCallback) this.onLoadCallback();
  }
};

module.exports = Filter;

/***/ }),
/* 97 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var keycharm = __webpack_require__(35);
var Emitter = __webpack_require__(44);
var Hammer = __webpack_require__(10);
var util = __webpack_require__(2);

/**
 * Turn an element into an clickToUse element.
 * When not active, the element has a transparent overlay. When the overlay is
 * clicked, the mode is changed to active.
 * When active, the element is displayed with a blue border around it, and
 * the interactive contents of the element can be used. When clicked outside
 * the element, the elements mode is changed to inactive.
 * @param {Element} container
 * @constructor Activator
 */
function Activator(container) {
  this.active = false;

  this.dom = {
    container: container
  };

  this.dom.overlay = document.createElement('div');
  this.dom.overlay.className = 'vis-overlay';

  this.dom.container.appendChild(this.dom.overlay);

  this.hammer = Hammer(this.dom.overlay);
  this.hammer.on('tap', this._onTapOverlay.bind(this));

  // block all touch events (except tap)
  var me = this;
  var events = ['tap', 'doubletap', 'press', 'pinch', 'pan', 'panstart', 'panmove', 'panend'];
  events.forEach(function (event) {
    me.hammer.on(event, function (event) {
      event.stopPropagation();
    });
  });

  // attach a click event to the window, in order to deactivate when clicking outside the timeline
  if (document && document.body) {
    this.onClick = function (event) {
      if (!_hasParent(event.target, container)) {
        me.deactivate();
      }
    };
    document.body.addEventListener('click', this.onClick);
  }

  if (this.keycharm !== undefined) {
    this.keycharm.destroy();
  }
  this.keycharm = keycharm();

  // keycharm listener only bounded when active)
  this.escListener = this.deactivate.bind(this);
}

// turn into an event emitter
Emitter(Activator.prototype);

// The currently active activator
Activator.current = null;

/**
 * Destroy the activator. Cleans up all created DOM and event listeners
 */
Activator.prototype.destroy = function () {
  this.deactivate();

  // remove dom
  this.dom.overlay.parentNode.removeChild(this.dom.overlay);

  // remove global event listener
  if (this.onClick) {
    document.body.removeEventListener('click', this.onClick);
  }

  // cleanup hammer instances
  this.hammer.destroy();
  this.hammer = null;
  // FIXME: cleaning up hammer instances doesn't work (Timeline not removed from memory)
};

/**
 * Activate the element
 * Overlay is hidden, element is decorated with a blue shadow border
 */
Activator.prototype.activate = function () {
  // we allow only one active activator at a time
  if (Activator.current) {
    Activator.current.deactivate();
  }
  Activator.current = this;

  this.active = true;
  this.dom.overlay.style.display = 'none';
  util.addClassName(this.dom.container, 'vis-active');

  this.emit('change');
  this.emit('activate');

  // ugly hack: bind ESC after emitting the events, as the Network rebinds all
  // keyboard events on a 'change' event
  this.keycharm.bind('esc', this.escListener);
};

/**
 * Deactivate the element
 * Overlay is displayed on top of the element
 */
Activator.prototype.deactivate = function () {
  this.active = false;
  this.dom.overlay.style.display = '';
  util.removeClassName(this.dom.container, 'vis-active');
  this.keycharm.unbind('esc', this.escListener);

  this.emit('change');
  this.emit('deactivate');
};

/**
 * Handle a tap event: activate the container
 * @param {Event}  event   The event
 * @private
 */
Activator.prototype._onTapOverlay = function (event) {
  // activate the container
  this.activate();
  event.stopPropagation();
};

/**
 * Test whether the element has the requested parent element somewhere in
 * its chain of parent nodes.
 * @param {HTMLElement} element
 * @param {HTMLElement} parent
 * @returns {boolean} Returns true when the parent is found somewhere in the
 *                    chain of parent nodes.
 * @private
 */
function _hasParent(element, parent) {
  while (element) {
    if (element === parent) {
      return true;
    }
    element = element.parentNode;
  }
  return false;
}

module.exports = Activator;

/***/ }),
/* 98 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


// English
exports['en'] = {
  current: 'current',
  time: 'time'
};
exports['en_EN'] = exports['en'];
exports['en_US'] = exports['en'];

// Italiano
exports['it'] = {
  current: 'attuale',
  time: 'tempo'
};
exports['it_IT'] = exports['it'];
exports['it_CH'] = exports['it'];

// Dutch
exports['nl'] = {
  current: 'huidige',
  time: 'tijd'
};
exports['nl_NL'] = exports['nl'];
exports['nl_BE'] = exports['nl'];

// German
exports['de'] = {
  current: 'Aktuelle',
  time: 'Zeit'
};
exports['de_DE'] = exports['de'];

// French
exports['fr'] = {
  current: 'actuel',
  time: 'heure'
};
exports['fr_FR'] = exports['fr'];
exports['fr_CA'] = exports['fr'];
exports['fr_BE'] = exports['fr'];

// Espanol
exports['es'] = {
  current: 'corriente',
  time: 'hora'
};
exports['es_ES'] = exports['es'];

/***/ }),
/* 99 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _create = __webpack_require__(29);

var _create2 = _interopRequireDefault(_create);

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var Hammer = __webpack_require__(10);
var util = __webpack_require__(2);
var DataSet = __webpack_require__(11);
var DataView = __webpack_require__(12);
var TimeStep = __webpack_require__(66);
var Component = __webpack_require__(16);
var Group = __webpack_require__(68);
var BackgroundGroup = __webpack_require__(69);
var BoxItem = __webpack_require__(101);
var PointItem = __webpack_require__(102);
var RangeItem = __webpack_require__(70);
var BackgroundItem = __webpack_require__(103);
var Popup = __webpack_require__(104)['default'];

var UNGROUPED = '__ungrouped__'; // reserved group id for ungrouped items
var BACKGROUND = '__background__'; // reserved group id for background items without group

/**
 * An ItemSet holds a set of items and ranges which can be displayed in a
 * range. The width is determined by the parent of the ItemSet, and the height
 * is determined by the size of the items.
 * @param {{dom: Object, domProps: Object, emitter: Emitter, range: Range}} body
 * @param {Object} [options]      See ItemSet.setOptions for the available options.
 * @constructor ItemSet
 * @extends Component
 */
function ItemSet(body, options) {
  this.body = body;
  this.defaultOptions = {
    type: null, // 'box', 'point', 'range', 'background'
    orientation: {
      item: 'bottom' // item orientation: 'top' or 'bottom'
    },
    align: 'auto', // alignment of box items
    stack: true,
    stackSubgroups: true,
    groupOrderSwap: function groupOrderSwap(fromGroup, toGroup, groups) {
      // eslint-disable-line no-unused-vars
      var targetOrder = toGroup.order;
      toGroup.order = fromGroup.order;
      fromGroup.order = targetOrder;
    },
    groupOrder: 'order',

    selectable: true,
    multiselect: false,
    itemsAlwaysDraggable: {
      item: false,
      range: false
    },

    editable: {
      updateTime: false,
      updateGroup: false,
      add: false,
      remove: false,
      overrideItems: false
    },

    groupEditable: {
      order: false,
      add: false,
      remove: false
    },

    snap: TimeStep.snap,

    // Only called when `objectData.target === 'item'.
    onDropObjectOnItem: function onDropObjectOnItem(objectData, item, callback) {
      callback(item);
    },
    onAdd: function onAdd(item, callback) {
      callback(item);
    },
    onUpdate: function onUpdate(item, callback) {
      callback(item);
    },
    onMove: function onMove(item, callback) {
      callback(item);
    },
    onRemove: function onRemove(item, callback) {
      callback(item);
    },
    onMoving: function onMoving(item, callback) {
      callback(item);
    },
    onAddGroup: function onAddGroup(item, callback) {
      callback(item);
    },
    onMoveGroup: function onMoveGroup(item, callback) {
      callback(item);
    },
    onRemoveGroup: function onRemoveGroup(item, callback) {
      callback(item);
    },

    margin: {
      item: {
        horizontal: 10,
        vertical: 10
      },
      axis: 20
    },

    showTooltips: true,

    tooltip: {
      followMouse: false,
      overflowMethod: 'flip'
    },

    tooltipOnItemUpdateTime: false
  };

  // options is shared by this ItemSet and all its items
  this.options = util.extend({}, this.defaultOptions);
  this.options.rtl = options.rtl;

  // options for getting items from the DataSet with the correct type
  this.itemOptions = {
    type: { start: 'Date', end: 'Date' }
  };

  this.conversion = {
    toScreen: body.util.toScreen,
    toTime: body.util.toTime
  };
  this.dom = {};
  this.props = {};
  this.hammer = null;

  var me = this;
  this.itemsData = null; // DataSet
  this.groupsData = null; // DataSet

  // listeners for the DataSet of the items
  this.itemListeners = {
    'add': function add(event, params, senderId) {
      // eslint-disable-line no-unused-vars
      me._onAdd(params.items);
    },
    'update': function update(event, params, senderId) {
      // eslint-disable-line no-unused-vars
      me._onUpdate(params.items);
    },
    'remove': function remove(event, params, senderId) {
      // eslint-disable-line no-unused-vars
      me._onRemove(params.items);
    }
  };

  // listeners for the DataSet of the groups
  this.groupListeners = {
    'add': function add(event, params, senderId) {
      // eslint-disable-line no-unused-vars
      me._onAddGroups(params.items);

      if (me.groupsData && me.groupsData.length > 0) {
        var groupsData = me.groupsData.getDataSet();
        groupsData.get().forEach(function (groupData) {
          if (groupData.nestedGroups) {
            if (groupData.showNested != false) {
              groupData.showNested = true;
            }
            var updatedGroups = [];
            groupData.nestedGroups.forEach(function (nestedGroupId) {
              var updatedNestedGroup = groupsData.get(nestedGroupId);
              if (!updatedNestedGroup) {
                return;
              }
              updatedNestedGroup.nestedInGroup = groupData.id;
              if (groupData.showNested == false) {
                updatedNestedGroup.visible = false;
              }
              updatedGroups = updatedGroups.concat(updatedNestedGroup);
            });
            groupsData.update(updatedGroups, senderId);
          }
        });
      }
    },
    'update': function update(event, params, senderId) {
      // eslint-disable-line no-unused-vars
      me._onUpdateGroups(params.items);
    },
    'remove': function remove(event, params, senderId) {
      // eslint-disable-line no-unused-vars
      me._onRemoveGroups(params.items);
    }
  };

  this.items = {}; // object with an Item for every data item
  this.groups = {}; // Group object for every group
  this.groupIds = [];

  this.selection = []; // list with the ids of all selected nodes

  this.popup = null;

  this.touchParams = {}; // stores properties while dragging
  this.groupTouchParams = {};
  // create the HTML DOM

  this._create();

  this.setOptions(options);
}

ItemSet.prototype = new Component();

// available item types will be registered here
ItemSet.types = {
  background: BackgroundItem,
  box: BoxItem,
  range: RangeItem,
  point: PointItem
};

/**
 * Create the HTML DOM for the ItemSet
 */
ItemSet.prototype._create = function () {
  var frame = document.createElement('div');
  frame.className = 'vis-itemset';
  frame['timeline-itemset'] = this;
  this.dom.frame = frame;

  // create background panel
  var background = document.createElement('div');
  background.className = 'vis-background';
  frame.appendChild(background);
  this.dom.background = background;

  // create foreground panel
  var foreground = document.createElement('div');
  foreground.className = 'vis-foreground';
  frame.appendChild(foreground);
  this.dom.foreground = foreground;

  // create axis panel
  var axis = document.createElement('div');
  axis.className = 'vis-axis';
  this.dom.axis = axis;

  // create labelset
  var labelSet = document.createElement('div');
  labelSet.className = 'vis-labelset';
  this.dom.labelSet = labelSet;

  // create ungrouped Group
  this._updateUngrouped();

  // create background Group
  var backgroundGroup = new BackgroundGroup(BACKGROUND, null, this);
  backgroundGroup.show();
  this.groups[BACKGROUND] = backgroundGroup;

  // attach event listeners
  // Note: we bind to the centerContainer for the case where the height
  //       of the center container is larger than of the ItemSet, so we
  //       can click in the empty area to create a new item or deselect an item.
  this.hammer = new Hammer(this.body.dom.centerContainer);

  // drag items when selected
  this.hammer.on('hammer.input', function (event) {
    if (event.isFirst) {
      this._onTouch(event);
    }
  }.bind(this));
  this.hammer.on('panstart', this._onDragStart.bind(this));
  this.hammer.on('panmove', this._onDrag.bind(this));
  this.hammer.on('panend', this._onDragEnd.bind(this));
  this.hammer.get('pan').set({ threshold: 5, direction: Hammer.DIRECTION_HORIZONTAL });

  // single select (or unselect) when tapping an item
  this.hammer.on('tap', this._onSelectItem.bind(this));

  // multi select when holding mouse/touch, or on ctrl+click
  this.hammer.on('press', this._onMultiSelectItem.bind(this));

  // add item on doubletap
  this.hammer.on('doubletap', this._onAddItem.bind(this));

  if (this.options.rtl) {
    this.groupHammer = new Hammer(this.body.dom.rightContainer);
  } else {
    this.groupHammer = new Hammer(this.body.dom.leftContainer);
  }

  this.groupHammer.on('tap', this._onGroupClick.bind(this));
  this.groupHammer.on('panstart', this._onGroupDragStart.bind(this));
  this.groupHammer.on('panmove', this._onGroupDrag.bind(this));
  this.groupHammer.on('panend', this._onGroupDragEnd.bind(this));
  this.groupHammer.get('pan').set({ threshold: 5, direction: Hammer.DIRECTION_VERTICAL });

  this.body.dom.centerContainer.addEventListener('mouseover', this._onMouseOver.bind(this));
  this.body.dom.centerContainer.addEventListener('mouseout', this._onMouseOut.bind(this));
  this.body.dom.centerContainer.addEventListener('mousemove', this._onMouseMove.bind(this));
  // right-click on timeline 
  this.body.dom.centerContainer.addEventListener('contextmenu', this._onDragEnd.bind(this));

  this.body.dom.centerContainer.addEventListener('mousewheel', this._onMouseWheel.bind(this));

  // attach to the DOM
  this.show();
};

/**
 * Set options for the ItemSet. Existing options will be extended/overwritten.
 * @param {Object} [options] The following options are available:
 *                           {string} type
 *                              Default type for the items. Choose from 'box'
 *                              (default), 'point', 'range', or 'background'.
 *                              The default style can be overwritten by
 *                              individual items.
 *                           {string} align
 *                              Alignment for the items, only applicable for
 *                              BoxItem. Choose 'center' (default), 'left', or
 *                              'right'.
 *                           {string} orientation.item
 *                              Orientation of the item set. Choose 'top' or
 *                              'bottom' (default).
 *                           {Function} groupOrder
 *                              A sorting function for ordering groups
 *                           {boolean} stack
 *                              If true (default), items will be stacked on
 *                              top of each other.
 *                           {number} margin.axis
 *                              Margin between the axis and the items in pixels.
 *                              Default is 20.
 *                           {number} margin.item.horizontal
 *                              Horizontal margin between items in pixels.
 *                              Default is 10.
 *                           {number} margin.item.vertical
 *                              Vertical Margin between items in pixels.
 *                              Default is 10.
 *                           {number} margin.item
 *                              Margin between items in pixels in both horizontal
 *                              and vertical direction. Default is 10.
 *                           {number} margin
 *                              Set margin for both axis and items in pixels.
 *                           {boolean} selectable
 *                              If true (default), items can be selected.
 *                           {boolean} multiselect
 *                              If true, multiple items can be selected.
 *                              False by default.
 *                           {boolean} editable
 *                              Set all editable options to true or false
 *                           {boolean} editable.updateTime
 *                              Allow dragging an item to an other moment in time
 *                           {boolean} editable.updateGroup
 *                              Allow dragging an item to an other group
 *                           {boolean} editable.add
 *                              Allow creating new items on double tap
 *                           {boolean} editable.remove
 *                              Allow removing items by clicking the delete button
 *                              top right of a selected item.
 *                           {Function(item: Item, callback: Function)} onAdd
 *                              Callback function triggered when an item is about to be added:
 *                              when the user double taps an empty space in the Timeline.
 *                           {Function(item: Item, callback: Function)} onUpdate
 *                              Callback function fired when an item is about to be updated.
 *                              This function typically has to show a dialog where the user
 *                              change the item. If not implemented, nothing happens.
 *                           {Function(item: Item, callback: Function)} onMove
 *                              Fired when an item has been moved. If not implemented,
 *                              the move action will be accepted.
 *                           {Function(item: Item, callback: Function)} onRemove
 *                              Fired when an item is about to be deleted.
 *                              If not implemented, the item will be always removed.
 */
ItemSet.prototype.setOptions = function (options) {
  if (options) {
    // copy all options that we know
    var fields = ['type', 'rtl', 'align', 'order', 'stack', 'stackSubgroups', 'selectable', 'multiselect', 'multiselectPerGroup', 'groupOrder', 'dataAttributes', 'template', 'groupTemplate', 'visibleFrameTemplate', 'hide', 'snap', 'groupOrderSwap', 'showTooltips', 'tooltip', 'tooltipOnItemUpdateTime'];
    util.selectiveExtend(fields, this.options, options);

    if ('itemsAlwaysDraggable' in options) {
      if (typeof options.itemsAlwaysDraggable === 'boolean') {
        this.options.itemsAlwaysDraggable.item = options.itemsAlwaysDraggable;
        this.options.itemsAlwaysDraggable.range = false;
      } else if ((0, _typeof3['default'])(options.itemsAlwaysDraggable) === 'object') {
        util.selectiveExtend(['item', 'range'], this.options.itemsAlwaysDraggable, options.itemsAlwaysDraggable);
        // only allow range always draggable when item is always draggable as well
        if (!this.options.itemsAlwaysDraggable.item) {
          this.options.itemsAlwaysDraggable.range = false;
        }
      }
    }

    if ('orientation' in options) {
      if (typeof options.orientation === 'string') {
        this.options.orientation.item = options.orientation === 'top' ? 'top' : 'bottom';
      } else if ((0, _typeof3['default'])(options.orientation) === 'object' && 'item' in options.orientation) {
        this.options.orientation.item = options.orientation.item;
      }
    }

    if ('margin' in options) {
      if (typeof options.margin === 'number') {
        this.options.margin.axis = options.margin;
        this.options.margin.item.horizontal = options.margin;
        this.options.margin.item.vertical = options.margin;
      } else if ((0, _typeof3['default'])(options.margin) === 'object') {
        util.selectiveExtend(['axis'], this.options.margin, options.margin);
        if ('item' in options.margin) {
          if (typeof options.margin.item === 'number') {
            this.options.margin.item.horizontal = options.margin.item;
            this.options.margin.item.vertical = options.margin.item;
          } else if ((0, _typeof3['default'])(options.margin.item) === 'object') {
            util.selectiveExtend(['horizontal', 'vertical'], this.options.margin.item, options.margin.item);
          }
        }
      }
    }

    if ('editable' in options) {
      if (typeof options.editable === 'boolean') {
        this.options.editable.updateTime = options.editable;
        this.options.editable.updateGroup = options.editable;
        this.options.editable.add = options.editable;
        this.options.editable.remove = options.editable;
        this.options.editable.overrideItems = false;
      } else if ((0, _typeof3['default'])(options.editable) === 'object') {
        util.selectiveExtend(['updateTime', 'updateGroup', 'add', 'remove', 'overrideItems'], this.options.editable, options.editable);
      }
    }

    if ('groupEditable' in options) {
      if (typeof options.groupEditable === 'boolean') {
        this.options.groupEditable.order = options.groupEditable;
        this.options.groupEditable.add = options.groupEditable;
        this.options.groupEditable.remove = options.groupEditable;
      } else if ((0, _typeof3['default'])(options.groupEditable) === 'object') {
        util.selectiveExtend(['order', 'add', 'remove'], this.options.groupEditable, options.groupEditable);
      }
    }

    // callback functions
    var addCallback = function (name) {
      var fn = options[name];
      if (fn) {
        if (!(fn instanceof Function)) {
          throw new Error('option ' + name + ' must be a function ' + name + '(item, callback)');
        }
        this.options[name] = fn;
      }
    }.bind(this);
    ['onDropObjectOnItem', 'onAdd', 'onUpdate', 'onRemove', 'onMove', 'onMoving', 'onAddGroup', 'onMoveGroup', 'onRemoveGroup'].forEach(addCallback);

    // force the itemSet to refresh: options like orientation and margins may be changed
    this.markDirty();
  }
};

/**
 * Mark the ItemSet dirty so it will refresh everything with next redraw.
 * Optionally, all items can be marked as dirty and be refreshed.
 * @param {{refreshItems: boolean}} [options]
 */
ItemSet.prototype.markDirty = function (options) {
  this.groupIds = [];

  if (options && options.refreshItems) {
    util.forEach(this.items, function (item) {
      item.dirty = true;
      if (item.displayed) item.redraw();
    });
  }
};

/**
 * Destroy the ItemSet
 */
ItemSet.prototype.destroy = function () {
  this.hide();
  this.setItems(null);
  this.setGroups(null);

  this.hammer = null;

  this.body = null;
  this.conversion = null;
};

/**
 * Hide the component from the DOM
 */
ItemSet.prototype.hide = function () {
  // remove the frame containing the items
  if (this.dom.frame.parentNode) {
    this.dom.frame.parentNode.removeChild(this.dom.frame);
  }

  // remove the axis with dots
  if (this.dom.axis.parentNode) {
    this.dom.axis.parentNode.removeChild(this.dom.axis);
  }

  // remove the labelset containing all group labels
  if (this.dom.labelSet.parentNode) {
    this.dom.labelSet.parentNode.removeChild(this.dom.labelSet);
  }
};

/**
 * Show the component in the DOM (when not already visible).
 */
ItemSet.prototype.show = function () {
  // show frame containing the items
  if (!this.dom.frame.parentNode) {
    this.body.dom.center.appendChild(this.dom.frame);
  }

  // show axis with dots
  if (!this.dom.axis.parentNode) {
    this.body.dom.backgroundVertical.appendChild(this.dom.axis);
  }

  // show labelset containing labels
  if (!this.dom.labelSet.parentNode) {
    if (this.options.rtl) {
      this.body.dom.right.appendChild(this.dom.labelSet);
    } else {
      this.body.dom.left.appendChild(this.dom.labelSet);
    }
  }
};

/**
 * Set selected items by their id. Replaces the current selection
 * Unknown id's are silently ignored.
 * @param {string[] | string} [ids] An array with zero or more id's of the items to be
 *                                  selected, or a single item id. If ids is undefined
 *                                  or an empty array, all items will be unselected.
 */
ItemSet.prototype.setSelection = function (ids) {
  var i, ii, id, item;

  if (ids == undefined) ids = [];
  if (!Array.isArray(ids)) ids = [ids];

  // unselect currently selected items
  for (i = 0, ii = this.selection.length; i < ii; i++) {
    id = this.selection[i];
    item = this.items[id];
    if (item) item.unselect();
  }

  // select items
  this.selection = [];
  for (i = 0, ii = ids.length; i < ii; i++) {
    id = ids[i];
    item = this.items[id];
    if (item) {
      this.selection.push(id);
      item.select();
    }
  }
};

/**
 * Get the selected items by their id
 * @return {Array} ids  The ids of the selected items
 */
ItemSet.prototype.getSelection = function () {
  return this.selection.concat([]);
};

/**
 * Get the id's of the currently visible items.
 * @returns {Array} The ids of the visible items
 */
ItemSet.prototype.getVisibleItems = function () {
  var range = this.body.range.getRange();
  var right, left;

  if (this.options.rtl) {
    right = this.body.util.toScreen(range.start);
    left = this.body.util.toScreen(range.end);
  } else {
    left = this.body.util.toScreen(range.start);
    right = this.body.util.toScreen(range.end);
  }

  var ids = [];
  for (var groupId in this.groups) {
    if (this.groups.hasOwnProperty(groupId)) {
      var group = this.groups[groupId];
      var rawVisibleItems = group.isVisible ? group.visibleItems : [];

      // filter the "raw" set with visibleItems into a set which is really
      // visible by pixels
      for (var i = 0; i < rawVisibleItems.length; i++) {
        var item = rawVisibleItems[i];
        // TODO: also check whether visible vertically
        if (this.options.rtl) {
          if (item.right < left && item.right + item.width > right) {
            ids.push(item.id);
          }
        } else {
          if (item.left < right && item.left + item.width > left) {
            ids.push(item.id);
          }
        }
      }
    }
  }

  return ids;
};

/**
 * Deselect a selected item
 * @param {string | number} id
 * @private
 */
ItemSet.prototype._deselect = function (id) {
  var selection = this.selection;
  for (var i = 0, ii = selection.length; i < ii; i++) {
    if (selection[i] == id) {
      // non-strict comparison!
      selection.splice(i, 1);
      break;
    }
  }
};

/**
 * Repaint the component
 * @return {boolean} Returns true if the component is resized
 */
ItemSet.prototype.redraw = function () {
  var margin = this.options.margin,
      range = this.body.range,
      asSize = util.option.asSize,
      options = this.options,
      orientation = options.orientation.item,
      resized = false,
      frame = this.dom.frame;

  // recalculate absolute position (before redrawing groups)
  this.props.top = this.body.domProps.top.height + this.body.domProps.border.top;

  if (this.options.rtl) {
    this.props.right = this.body.domProps.right.width + this.body.domProps.border.right;
  } else {
    this.props.left = this.body.domProps.left.width + this.body.domProps.border.left;
  }

  // update class name
  frame.className = 'vis-itemset';

  // reorder the groups (if needed)
  resized = this._orderGroups() || resized;

  // check whether zoomed (in that case we need to re-stack everything)
  // TODO: would be nicer to get this as a trigger from Range
  var visibleInterval = range.end - range.start;
  var zoomed = visibleInterval != this.lastVisibleInterval || this.props.width != this.props.lastWidth;
  var scrolled = range.start != this.lastRangeStart;
  var changedStackOption = options.stack != this.lastStack;
  var changedStackSubgroupsOption = options.stackSubgroups != this.lastStackSubgroups;
  var forceRestack = zoomed || scrolled || changedStackOption || changedStackSubgroupsOption;
  this.lastVisibleInterval = visibleInterval;
  this.lastRangeStart = range.start;
  this.lastStack = options.stack;
  this.lastStackSubgroups = options.stackSubgroups;

  this.props.lastWidth = this.props.width;

  var firstGroup = this._firstGroup();
  var firstMargin = {
    item: margin.item,
    axis: margin.axis
  };
  var nonFirstMargin = {
    item: margin.item,
    axis: margin.item.vertical / 2
  };
  var height = 0;
  var minHeight = margin.axis + margin.item.vertical;

  // redraw the background group
  this.groups[BACKGROUND].redraw(range, nonFirstMargin, forceRestack);

  var redrawQueue = {};
  var redrawQueueLength = 0;

  // collect redraw functions
  util.forEach(this.groups, function (group, key) {
    if (key === BACKGROUND) return;
    var groupMargin = group == firstGroup ? firstMargin : nonFirstMargin;
    var returnQueue = true;
    redrawQueue[key] = group.redraw(range, groupMargin, forceRestack, returnQueue);
    redrawQueueLength = redrawQueue[key].length;
  });

  var needRedraw = redrawQueueLength > 0;
  if (needRedraw) {
    var redrawResults = {};

    for (var i = 0; i < redrawQueueLength; i++) {
      util.forEach(redrawQueue, function (fns, key) {
        redrawResults[key] = fns[i]();
      });
    }

    // redraw all regular groups
    util.forEach(this.groups, function (group, key) {
      if (key === BACKGROUND) return;
      var groupResized = redrawResults[key];
      resized = groupResized || resized;
      height += group.height;
    });
    height = Math.max(height, minHeight);
  }

  height = Math.max(height, minHeight);

  // update frame height
  frame.style.height = asSize(height);

  // calculate actual size
  this.props.width = frame.offsetWidth;
  this.props.height = height;

  // reposition axis
  this.dom.axis.style.top = asSize(orientation == 'top' ? this.body.domProps.top.height + this.body.domProps.border.top : this.body.domProps.top.height + this.body.domProps.centerContainer.height);
  if (this.options.rtl) {
    this.dom.axis.style.right = '0';
  } else {
    this.dom.axis.style.left = '0';
  }

  this.initialItemSetDrawn = true;
  // check if this component is resized
  resized = this._isResized() || resized;

  return resized;
};

/**
 * Get the first group, aligned with the axis
 * @return {Group | null} firstGroup
 * @private
 */
ItemSet.prototype._firstGroup = function () {
  var firstGroupIndex = this.options.orientation.item == 'top' ? 0 : this.groupIds.length - 1;
  var firstGroupId = this.groupIds[firstGroupIndex];
  var firstGroup = this.groups[firstGroupId] || this.groups[UNGROUPED];

  return firstGroup || null;
};

/**
 * Create or delete the group holding all ungrouped items. This group is used when
 * there are no groups specified.
 * @protected
 */
ItemSet.prototype._updateUngrouped = function () {
  var ungrouped = this.groups[UNGROUPED];
  var item, itemId;

  if (this.groupsData) {
    // remove the group holding all ungrouped items
    if (ungrouped) {
      ungrouped.hide();
      delete this.groups[UNGROUPED];

      for (itemId in this.items) {
        if (this.items.hasOwnProperty(itemId)) {
          item = this.items[itemId];
          item.parent && item.parent.remove(item);
          var groupId = this._getGroupId(item.data);
          var group = this.groups[groupId];
          group && group.add(item) || item.hide();
        }
      }
    }
  } else {
    // create a group holding all (unfiltered) items
    if (!ungrouped) {
      var id = null;
      var data = null;
      ungrouped = new Group(id, data, this);
      this.groups[UNGROUPED] = ungrouped;

      for (itemId in this.items) {
        if (this.items.hasOwnProperty(itemId)) {
          item = this.items[itemId];
          ungrouped.add(item);
        }
      }

      ungrouped.show();
    }
  }
};

/**
 * Get the element for the labelset
 * @return {HTMLElement} labelSet
 */
ItemSet.prototype.getLabelSet = function () {
  return this.dom.labelSet;
};

/**
 * Set items
 * @param {vis.DataSet | null} items
 */
ItemSet.prototype.setItems = function (items) {
  var me = this,
      ids,
      oldItemsData = this.itemsData;

  // replace the dataset
  if (!items) {
    this.itemsData = null;
  } else if (items instanceof DataSet || items instanceof DataView) {
    this.itemsData = items;
  } else {
    throw new TypeError('Data must be an instance of DataSet or DataView');
  }

  if (oldItemsData) {
    // unsubscribe from old dataset
    util.forEach(this.itemListeners, function (callback, event) {
      oldItemsData.off(event, callback);
    });

    // remove all drawn items
    ids = oldItemsData.getIds();
    this._onRemove(ids);
  }

  if (this.itemsData) {
    // subscribe to new dataset
    var id = this.id;
    util.forEach(this.itemListeners, function (callback, event) {
      me.itemsData.on(event, callback, id);
    });

    // add all new items
    ids = this.itemsData.getIds();
    this._onAdd(ids);

    // update the group holding all ungrouped items
    this._updateUngrouped();
  }

  this.body.emitter.emit('_change', { queue: true });
};

/**
 * Get the current items
 * @returns {vis.DataSet | null}
 */
ItemSet.prototype.getItems = function () {
  return this.itemsData;
};

/**
 * Set groups
 * @param {vis.DataSet} groups
 */
ItemSet.prototype.setGroups = function (groups) {
  var me = this,
      ids;

  // unsubscribe from current dataset
  if (this.groupsData) {
    util.forEach(this.groupListeners, function (callback, event) {
      me.groupsData.off(event, callback);
    });

    // remove all drawn groups
    ids = this.groupsData.getIds();
    this.groupsData = null;
    this._onRemoveGroups(ids); // note: this will cause a redraw
  }

  // replace the dataset
  if (!groups) {
    this.groupsData = null;
  } else if (groups instanceof DataSet || groups instanceof DataView) {
    this.groupsData = groups;
  } else {
    throw new TypeError('Data must be an instance of DataSet or DataView');
  }

  if (this.groupsData) {
    // go over all groups nesting
    var groupsData = this.groupsData;
    if (this.groupsData instanceof DataView) {
      groupsData = this.groupsData.getDataSet();
    }

    groupsData.get().forEach(function (group) {
      if (group.nestedGroups) {
        group.nestedGroups.forEach(function (nestedGroupId) {
          var updatedNestedGroup = groupsData.get(nestedGroupId);
          updatedNestedGroup.nestedInGroup = group.id;
          if (group.showNested == false) {
            updatedNestedGroup.visible = false;
          }
          groupsData.update(updatedNestedGroup);
        });
      }
    });

    // subscribe to new dataset
    var id = this.id;
    util.forEach(this.groupListeners, function (callback, event) {
      me.groupsData.on(event, callback, id);
    });

    // draw all ms
    ids = this.groupsData.getIds();
    this._onAddGroups(ids);
  }

  // update the group holding all ungrouped items
  this._updateUngrouped();

  // update the order of all items in each group
  this._order();

  this.body.emitter.emit('_change', { queue: true });
};

/**
 * Get the current groups
 * @returns {vis.DataSet | null} groups
 */
ItemSet.prototype.getGroups = function () {
  return this.groupsData;
};

/**
 * Remove an item by its id
 * @param {string | number} id
 */
ItemSet.prototype.removeItem = function (id) {
  var item = this.itemsData.get(id),
      dataset = this.itemsData.getDataSet();

  if (item) {
    // confirm deletion
    this.options.onRemove(item, function (item) {
      if (item) {
        // remove by id here, it is possible that an item has no id defined
        // itself, so better not delete by the item itself
        dataset.remove(id);
      }
    });
  }
};

/**
 * Get the time of an item based on it's data and options.type
 * @param {Object} itemData
 * @returns {string} Returns the type
 * @private
 */
ItemSet.prototype._getType = function (itemData) {
  return itemData.type || this.options.type || (itemData.end ? 'range' : 'box');
};

/**
 * Get the group id for an item
 * @param {Object} itemData
 * @returns {string} Returns the groupId
 * @private
 */
ItemSet.prototype._getGroupId = function (itemData) {
  var type = this._getType(itemData);
  if (type == 'background' && itemData.group == undefined) {
    return BACKGROUND;
  } else {
    return this.groupsData ? itemData.group : UNGROUPED;
  }
};

/**
 * Handle updated items
 * @param {number[]} ids
 * @protected
 */
ItemSet.prototype._onUpdate = function (ids) {
  var me = this;

  ids.forEach(function (id) {
    var itemData = me.itemsData.get(id, me.itemOptions);
    var item = me.items[id];
    var type = itemData ? me._getType(itemData) : null;

    var constructor = ItemSet.types[type];
    var selected;

    if (item) {
      // update item   	
      if (!constructor || !(item instanceof constructor)) {
        // item type has changed, delete the item and recreate it
        selected = item.selected; // preserve selection of this item
        me._removeItem(item);
        item = null;
      } else {
        me._updateItem(item, itemData);
      }
    }

    if (!item && itemData) {
      // create item
      if (constructor) {
        item = new constructor(itemData, me.conversion, me.options);
        item.id = id; // TODO: not so nice setting id afterwards

        me._addItem(item);
        if (selected) {
          this.selection.push(id);
          item.select();
        }
      } else if (type == 'rangeoverflow') {
        // TODO: deprecated since version 2.1.0 (or 3.0.0?). cleanup some day
        throw new TypeError('Item type "rangeoverflow" is deprecated. Use css styling instead: ' + '.vis-item.vis-range .vis-item-content {overflow: visible;}');
      } else {
        throw new TypeError('Unknown item type "' + type + '"');
      }
    }
  }.bind(this));

  this._order();
  this.body.emitter.emit('_change', { queue: true });
};

/**
 * Handle added items
 * @param {number[]} ids
 * @protected
 */
ItemSet.prototype._onAdd = ItemSet.prototype._onUpdate;

/**
 * Handle removed items
 * @param {number[]} ids
 * @protected
 */
ItemSet.prototype._onRemove = function (ids) {
  var count = 0;
  var me = this;
  ids.forEach(function (id) {
    var item = me.items[id];
    if (item) {
      count++;
      me._removeItem(item);
    }
  });

  if (count) {
    // update order
    this._order();
    this.body.emitter.emit('_change', { queue: true });
  }
};

/**
 * Update the order of item in all groups
 * @private
 */
ItemSet.prototype._order = function () {
  // reorder the items in all groups
  // TODO: optimization: only reorder groups affected by the changed items
  util.forEach(this.groups, function (group) {
    group.order();
  });
};

/**
 * Handle updated groups
 * @param {number[]} ids
 * @private
 */
ItemSet.prototype._onUpdateGroups = function (ids) {
  this._onAddGroups(ids);
};

/**
 * Handle changed groups (added or updated)
 * @param {number[]} ids
 * @private
 */
ItemSet.prototype._onAddGroups = function (ids) {
  var me = this;

  ids.forEach(function (id) {
    var groupData = me.groupsData.get(id);
    var group = me.groups[id];

    if (!group) {
      // check for reserved ids
      if (id == UNGROUPED || id == BACKGROUND) {
        throw new Error('Illegal group id. ' + id + ' is a reserved id.');
      }

      var groupOptions = (0, _create2['default'])(me.options);
      util.extend(groupOptions, {
        height: null
      });

      group = new Group(id, groupData, me);
      me.groups[id] = group;

      // add items with this groupId to the new group
      for (var itemId in me.items) {
        if (me.items.hasOwnProperty(itemId)) {
          var item = me.items[itemId];
          if (item.data.group == id) {
            group.add(item);
          }
        }
      }

      group.order();
      group.show();
    } else {
      // update group
      group.setData(groupData);
    }
  });

  this.body.emitter.emit('_change', { queue: true });
};

/**
 * Handle removed groups
 * @param {number[]} ids
 * @private
 */
ItemSet.prototype._onRemoveGroups = function (ids) {
  var groups = this.groups;
  ids.forEach(function (id) {
    var group = groups[id];

    if (group) {
      group.hide();
      delete groups[id];
    }
  });

  this.markDirty();

  this.body.emitter.emit('_change', { queue: true });
};

/**
 * Reorder the groups if needed
 * @return {boolean} changed
 * @private
 */
ItemSet.prototype._orderGroups = function () {
  if (this.groupsData) {
    // reorder the groups
    var groupIds = this.groupsData.getIds({
      order: this.options.groupOrder
    });

    groupIds = this._orderNestedGroups(groupIds);

    var changed = !util.equalArray(groupIds, this.groupIds);
    if (changed) {
      // hide all groups, removes them from the DOM
      var groups = this.groups;
      groupIds.forEach(function (groupId) {
        groups[groupId].hide();
      });

      // show the groups again, attach them to the DOM in correct order
      groupIds.forEach(function (groupId) {
        groups[groupId].show();
      });

      this.groupIds = groupIds;
    }

    return changed;
  } else {
    return false;
  }
};

/**
 * Reorder the nested groups
 *
 * @param {Array.<number>} groupIds
 * @returns {Array.<number>}
 * @private
 */
ItemSet.prototype._orderNestedGroups = function (groupIds) {
  var newGroupIdsOrder = [];

  groupIds.forEach(function (groupId) {
    var groupData = this.groupsData.get(groupId);
    if (!groupData.nestedInGroup) {
      newGroupIdsOrder.push(groupId);
    }
    if (groupData.nestedGroups) {
      var nestedGroups = this.groupsData.get({
        filter: function filter(nestedGroup) {
          return nestedGroup.nestedInGroup == groupId;
        },
        order: this.options.groupOrder
      });
      var nestedGroupIds = nestedGroups.map(function (nestedGroup) {
        return nestedGroup.id;
      });
      newGroupIdsOrder = newGroupIdsOrder.concat(nestedGroupIds);
    }
  }, this);
  return newGroupIdsOrder;
};

/**
 * Add a new item
 * @param {Item} item
 * @private
 */
ItemSet.prototype._addItem = function (item) {
  this.items[item.id] = item;

  // add to group
  var groupId = this._getGroupId(item.data);
  var group = this.groups[groupId];

  if (!group) {
    item.groupShowing = false;
  } else if (group && group.data && group.data.showNested) {
    item.groupShowing = true;
  }

  if (group) group.add(item);
};

/**
 * Update an existing item
 * @param {Item} item
 * @param {Object} itemData
 * @private
 */
ItemSet.prototype._updateItem = function (item, itemData) {
  // update the items data (will redraw the item when displayed)
  item.setData(itemData);

  var groupId = this._getGroupId(item.data);
  var group = this.groups[groupId];
  if (!group) {
    item.groupShowing = false;
  } else if (group && group.data && group.data.showNested) {
    item.groupShowing = true;
  }
};

/**
 * Delete an item from the ItemSet: remove it from the DOM, from the map
 * with items, and from the map with visible items, and from the selection
 * @param {Item} item
 * @private
 */
ItemSet.prototype._removeItem = function (item) {
  // remove from DOM
  item.hide();

  // remove from items
  delete this.items[item.id];

  // remove from selection
  var index = this.selection.indexOf(item.id);
  if (index != -1) this.selection.splice(index, 1);

  // remove from group
  item.parent && item.parent.remove(item);
};

/**
 * Create an array containing all items being a range (having an end date)
 * @param {Array.<Object>} array
 * @returns {Array}
 * @private
 */
ItemSet.prototype._constructByEndArray = function (array) {
  var endArray = [];

  for (var i = 0; i < array.length; i++) {
    if (array[i] instanceof RangeItem) {
      endArray.push(array[i]);
    }
  }
  return endArray;
};

/**
 * Register the clicked item on touch, before dragStart is initiated.
 *
 * dragStart is initiated from a mousemove event, AFTER the mouse/touch is
 * already moving. Therefore, the mouse/touch can sometimes be above an other
 * DOM element than the item itself.
 *
 * @param {Event} event
 * @private
 */
ItemSet.prototype._onTouch = function (event) {
  // store the touched item, used in _onDragStart
  this.touchParams.item = this.itemFromTarget(event);
  this.touchParams.dragLeftItem = event.target.dragLeftItem || false;
  this.touchParams.dragRightItem = event.target.dragRightItem || false;
  this.touchParams.itemProps = null;
};

/**
 * Given an group id, returns the index it has.
 *
 * @param {number} groupId
 * @returns {number} index / groupId
 * @private
 */
ItemSet.prototype._getGroupIndex = function (groupId) {
  for (var i = 0; i < this.groupIds.length; i++) {
    if (groupId == this.groupIds[i]) return i;
  }
};

/**
 * Start dragging the selected events
 * @param {Event} event
 * @private
 */
ItemSet.prototype._onDragStart = function (event) {
  if (this.touchParams.itemIsDragging) {
    return;
  }
  var item = this.touchParams.item || null;
  var me = this;
  var props;

  if (item && (item.selected || this.options.itemsAlwaysDraggable.item)) {

    if (this.options.editable.overrideItems && !this.options.editable.updateTime && !this.options.editable.updateGroup) {
      return;
    }

    // override options.editable
    if (item.editable != null && !item.editable.updateTime && !item.editable.updateGroup && !this.options.editable.overrideItems) {
      return;
    }

    var dragLeftItem = this.touchParams.dragLeftItem;
    var dragRightItem = this.touchParams.dragRightItem;
    this.touchParams.itemIsDragging = true;
    this.touchParams.selectedItem = item;

    if (dragLeftItem) {
      props = {
        item: dragLeftItem,
        initialX: event.center.x,
        dragLeft: true,
        data: this._cloneItemData(item.data)
      };

      this.touchParams.itemProps = [props];
    } else if (dragRightItem) {
      props = {
        item: dragRightItem,
        initialX: event.center.x,
        dragRight: true,
        data: this._cloneItemData(item.data)
      };

      this.touchParams.itemProps = [props];
    } else if (this.options.editable.add && (event.srcEvent.ctrlKey || event.srcEvent.metaKey)) {
      // create a new range item when dragging with ctrl key down
      this._onDragStartAddItem(event);
    } else {
      if (this.groupIds.length < 1) {
        // Mitigates a race condition if _onDragStart() is
        // called after markDirty() without redraw() being called between.
        this.redraw();
      }

      var baseGroupIndex = this._getGroupIndex(item.data.group);

      var itemsToDrag = this.options.itemsAlwaysDraggable.item && !item.selected ? [item.id] : this.getSelection();

      this.touchParams.itemProps = itemsToDrag.map(function (id) {
        var item = me.items[id];
        var groupIndex = me._getGroupIndex(item.data.group);
        return {
          item: item,
          initialX: event.center.x,
          groupOffset: baseGroupIndex - groupIndex,
          data: this._cloneItemData(item.data)
        };
      }.bind(this));
    }

    event.stopPropagation();
  } else if (this.options.editable.add && (event.srcEvent.ctrlKey || event.srcEvent.metaKey)) {
    // create a new range item when dragging with ctrl key down
    this._onDragStartAddItem(event);
  }
};

/**
 * Start creating a new range item by dragging.
 * @param {Event} event
 * @private
 */
ItemSet.prototype._onDragStartAddItem = function (event) {
  var xAbs;
  var x;
  var snap = this.options.snap || null;

  if (this.options.rtl) {
    xAbs = util.getAbsoluteRight(this.dom.frame);
    x = xAbs - event.center.x + 10; // plus 10 to compensate for the drag starting as soon as you've moved 10px
  } else {
    xAbs = util.getAbsoluteLeft(this.dom.frame);
    x = event.center.x - xAbs - 10; // minus 10 to compensate for the drag starting as soon as you've moved 10px
  }

  var time = this.body.util.toTime(x);
  var scale = this.body.util.getScale();
  var step = this.body.util.getStep();
  var start = snap ? snap(time, scale, step) : time;
  var end = start;

  var itemData = {
    type: 'range',
    start: start,
    end: end,
    content: 'new item'
  };

  var id = util.randomUUID();
  itemData[this.itemsData._fieldId] = id;

  var group = this.groupFromTarget(event);
  if (group) {
    itemData.group = group.groupId;
  }
  var newItem = new RangeItem(itemData, this.conversion, this.options);
  newItem.id = id; // TODO: not so nice setting id afterwards
  newItem.data = this._cloneItemData(itemData);
  this._addItem(newItem);
  this.touchParams.selectedItem = newItem;

  var props = {
    item: newItem,
    initialX: event.center.x,
    data: newItem.data
  };

  if (this.options.rtl) {
    props.dragLeft = true;
  } else {
    props.dragRight = true;
  }
  this.touchParams.itemProps = [props];

  event.stopPropagation();
};

/**
 * Drag selected items
 * @param {Event} event
 * @private
 */
ItemSet.prototype._onDrag = function (event) {
  if (this.touchParams.itemProps) {
    event.stopPropagation();

    var me = this;
    var snap = this.options.snap || null;
    var xOffset;

    if (this.options.rtl) {
      xOffset = this.body.dom.root.offsetLeft + this.body.domProps.right.width;
    } else {
      xOffset = this.body.dom.root.offsetLeft + this.body.domProps.left.width;
    }

    var scale = this.body.util.getScale();
    var step = this.body.util.getStep();

    //only calculate the new group for the item that's actually dragged
    var selectedItem = this.touchParams.selectedItem;
    var updateGroupAllowed = (this.options.editable.overrideItems || selectedItem.editable == null) && this.options.editable.updateGroup || !this.options.editable.overrideItems && selectedItem.editable != null && selectedItem.editable.updateGroup;
    var newGroupBase = null;
    if (updateGroupAllowed && selectedItem) {
      if (selectedItem.data.group != undefined) {
        // drag from one group to another
        var group = me.groupFromTarget(event);
        if (group) {
          //we know the offset for all items, so the new group for all items
          //will be relative to this one.
          newGroupBase = this._getGroupIndex(group.groupId);
        }
      }
    }

    // move
    this.touchParams.itemProps.forEach(function (props) {
      var current = me.body.util.toTime(event.center.x - xOffset);
      var initial = me.body.util.toTime(props.initialX - xOffset);
      var offset;
      var initialStart;
      var initialEnd;
      var start;
      var end;

      if (this.options.rtl) {
        offset = -(current - initial); // ms
      } else {
        offset = current - initial; // ms
      }

      var itemData = this._cloneItemData(props.item.data); // clone the data
      if (props.item.editable != null && !props.item.editable.updateTime && !props.item.editable.updateGroup && !me.options.editable.overrideItems) {
        return;
      }

      var updateTimeAllowed = (this.options.editable.overrideItems || selectedItem.editable == null) && this.options.editable.updateTime || !this.options.editable.overrideItems && selectedItem.editable != null && selectedItem.editable.updateTime;
      if (updateTimeAllowed) {
        if (props.dragLeft) {
          // drag left side of a range item
          if (this.options.rtl) {
            if (itemData.end != undefined) {
              initialEnd = util.convert(props.data.end, 'Date');
              end = new Date(initialEnd.valueOf() + offset);
              // TODO: pass a Moment instead of a Date to snap(). (Breaking change)
              itemData.end = snap ? snap(end, scale, step) : end;
            }
          } else {
            if (itemData.start != undefined) {
              initialStart = util.convert(props.data.start, 'Date');
              start = new Date(initialStart.valueOf() + offset);
              // TODO: pass a Moment instead of a Date to snap(). (Breaking change)
              itemData.start = snap ? snap(start, scale, step) : start;
            }
          }
        } else if (props.dragRight) {
          // drag right side of a range item
          if (this.options.rtl) {
            if (itemData.start != undefined) {
              initialStart = util.convert(props.data.start, 'Date');
              start = new Date(initialStart.valueOf() + offset);
              // TODO: pass a Moment instead of a Date to snap(). (Breaking change)
              itemData.start = snap ? snap(start, scale, step) : start;
            }
          } else {
            if (itemData.end != undefined) {
              initialEnd = util.convert(props.data.end, 'Date');
              end = new Date(initialEnd.valueOf() + offset);
              // TODO: pass a Moment instead of a Date to snap(). (Breaking change)
              itemData.end = snap ? snap(end, scale, step) : end;
            }
          }
        } else {
          // drag both start and end
          if (itemData.start != undefined) {

            initialStart = util.convert(props.data.start, 'Date').valueOf();
            start = new Date(initialStart + offset);

            if (itemData.end != undefined) {
              initialEnd = util.convert(props.data.end, 'Date');
              var duration = initialEnd.valueOf() - initialStart.valueOf();

              // TODO: pass a Moment instead of a Date to snap(). (Breaking change)
              itemData.start = snap ? snap(start, scale, step) : start;
              itemData.end = new Date(itemData.start.valueOf() + duration);
            } else {
              // TODO: pass a Moment instead of a Date to snap(). (Breaking change)
              itemData.start = snap ? snap(start, scale, step) : start;
            }
          }
        }
      }

      if (updateGroupAllowed && !props.dragLeft && !props.dragRight && newGroupBase != null) {
        if (itemData.group != undefined) {
          var newOffset = newGroupBase - props.groupOffset;

          //make sure we stay in bounds
          newOffset = Math.max(0, newOffset);
          newOffset = Math.min(me.groupIds.length - 1, newOffset);
          itemData.group = me.groupIds[newOffset];
        }
      }

      // confirm moving the item
      itemData = this._cloneItemData(itemData); // convert start and end to the correct type
      me.options.onMoving(itemData, function (itemData) {
        if (itemData) {
          props.item.setData(this._cloneItemData(itemData, 'Date'));
        }
      }.bind(this));
    }.bind(this));

    this.body.emitter.emit('_change');
  }
};

/**
 * Move an item to another group
 * @param {Item} item
 * @param {string | number} groupId
 * @private
 */
ItemSet.prototype._moveToGroup = function (item, groupId) {
  var group = this.groups[groupId];
  if (group && group.groupId != item.data.group) {
    var oldGroup = item.parent;
    oldGroup.remove(item);
    oldGroup.order();

    item.data.group = group.groupId;

    group.add(item);
    group.order();
  }
};

/**
 * End of dragging selected items
 * @param {Event} event
 * @private
 */
ItemSet.prototype._onDragEnd = function (event) {
  this.touchParams.itemIsDragging = false;
  if (this.touchParams.itemProps) {
    event.stopPropagation();

    var me = this;
    var dataset = this.itemsData.getDataSet();
    var itemProps = this.touchParams.itemProps;
    this.touchParams.itemProps = null;

    itemProps.forEach(function (props) {
      var id = props.item.id;
      var exists = me.itemsData.get(id, me.itemOptions) != null;

      if (!exists) {
        // add a new item
        me.options.onAdd(props.item.data, function (itemData) {
          me._removeItem(props.item); // remove temporary item
          if (itemData) {
            me.itemsData.getDataSet().add(itemData);
          }

          // force re-stacking of all items next redraw
          me.body.emitter.emit('_change');
        });
      } else {
        // update existing item
        var itemData = this._cloneItemData(props.item.data); // convert start and end to the correct type
        me.options.onMove(itemData, function (itemData) {
          if (itemData) {
            // apply changes
            itemData[dataset._fieldId] = id; // ensure the item contains its id (can be undefined)
            dataset.update(itemData);
          } else {
            // restore original values
            props.item.setData(props.data);

            me.body.emitter.emit('_change');
          }
        });
      }
    }.bind(this));
  }
};

ItemSet.prototype._onGroupClick = function (event) {
  var group = this.groupFromTarget(event);

  if (!group || !group.nestedGroups) return;

  var groupsData = this.groupsData.getDataSet();

  var nestingGroup = groupsData.get(group.groupId);
  if (nestingGroup.showNested == undefined) {
    nestingGroup.showNested = true;
  }
  nestingGroup.showNested = !nestingGroup.showNested;

  var nestedGroups = groupsData.get(group.nestedGroups).map(function (nestedGroup) {
    nestedGroup.visible = nestingGroup.showNested;
    return nestedGroup;
  });

  groupsData.update(nestedGroups.concat(nestingGroup));

  if (nestingGroup.showNested) {
    util.removeClassName(group.dom.label, 'collapsed');
    util.addClassName(group.dom.label, 'expanded');
  } else {
    util.removeClassName(group.dom.label, 'expanded');
    var collapsedDirClassName = this.options.rtl ? 'collapsed-rtl' : 'collapsed';
    util.addClassName(group.dom.label, collapsedDirClassName);
  }
};

ItemSet.prototype._onGroupDragStart = function (event) {
  if (this.options.groupEditable.order) {
    this.groupTouchParams.group = this.groupFromTarget(event);

    if (this.groupTouchParams.group) {
      event.stopPropagation();

      this.groupTouchParams.originalOrder = this.groupsData.getIds({
        order: this.options.groupOrder
      });
    }
  }
};

ItemSet.prototype._onGroupDrag = function (event) {
  if (this.options.groupEditable.order && this.groupTouchParams.group) {
    event.stopPropagation();

    var groupsData = this.groupsData;
    if (this.groupsData instanceof DataView) {
      groupsData = this.groupsData.getDataSet();
    }
    // drag from one group to another
    var group = this.groupFromTarget(event);

    // try to avoid toggling when groups differ in height
    if (group && group.height != this.groupTouchParams.group.height) {
      var movingUp = group.top < this.groupTouchParams.group.top;
      var clientY = event.center ? event.center.y : event.clientY;
      var targetGroupTop = util.getAbsoluteTop(group.dom.foreground);
      var draggedGroupHeight = this.groupTouchParams.group.height;
      if (movingUp) {
        // skip swapping the groups when the dragged group is not below clientY afterwards
        if (targetGroupTop + draggedGroupHeight < clientY) {
          return;
        }
      } else {
        var targetGroupHeight = group.height;
        // skip swapping the groups when the dragged group is not below clientY afterwards
        if (targetGroupTop + targetGroupHeight - draggedGroupHeight > clientY) {
          return;
        }
      }
    }

    if (group && group != this.groupTouchParams.group) {
      var targetGroup = groupsData.get(group.groupId);
      var draggedGroup = groupsData.get(this.groupTouchParams.group.groupId);

      // switch groups
      if (draggedGroup && targetGroup) {
        this.options.groupOrderSwap(draggedGroup, targetGroup, groupsData);
        groupsData.update(draggedGroup);
        groupsData.update(targetGroup);
      }

      // fetch current order of groups
      var newOrder = groupsData.getIds({
        order: this.options.groupOrder
      });

      // in case of changes since _onGroupDragStart
      if (!util.equalArray(newOrder, this.groupTouchParams.originalOrder)) {
        var origOrder = this.groupTouchParams.originalOrder;
        var draggedId = this.groupTouchParams.group.groupId;
        var numGroups = Math.min(origOrder.length, newOrder.length);
        var curPos = 0;
        var newOffset = 0;
        var orgOffset = 0;
        while (curPos < numGroups) {
          // as long as the groups are where they should be step down along the groups order
          while (curPos + newOffset < numGroups && curPos + orgOffset < numGroups && newOrder[curPos + newOffset] == origOrder[curPos + orgOffset]) {
            curPos++;
          }

          // all ok
          if (curPos + newOffset >= numGroups) {
            break;
          }

          // not all ok
          // if dragged group was move upwards everything below should have an offset
          if (newOrder[curPos + newOffset] == draggedId) {
            newOffset = 1;
          }
          // if dragged group was move downwards everything above should have an offset
          else if (origOrder[curPos + orgOffset] == draggedId) {
              orgOffset = 1;
            }
            // found a group (apart from dragged group) that has the wrong position -> switch with the 
            // group at the position where other one should be, fix index arrays and continue
            else {
                var slippedPosition = newOrder.indexOf(origOrder[curPos + orgOffset]);
                var switchGroup = groupsData.get(newOrder[curPos + newOffset]);
                var shouldBeGroup = groupsData.get(origOrder[curPos + orgOffset]);
                this.options.groupOrderSwap(switchGroup, shouldBeGroup, groupsData);
                groupsData.update(switchGroup);
                groupsData.update(shouldBeGroup);

                var switchGroupId = newOrder[curPos + newOffset];
                newOrder[curPos + newOffset] = origOrder[curPos + orgOffset];
                newOrder[slippedPosition] = switchGroupId;

                curPos++;
              }
        }
      }
    }
  }
};

ItemSet.prototype._onGroupDragEnd = function (event) {
  if (this.options.groupEditable.order && this.groupTouchParams.group) {
    event.stopPropagation();

    // update existing group
    var me = this;
    var id = me.groupTouchParams.group.groupId;
    var dataset = me.groupsData.getDataSet();
    var groupData = util.extend({}, dataset.get(id)); // clone the data
    me.options.onMoveGroup(groupData, function (groupData) {
      if (groupData) {
        // apply changes
        groupData[dataset._fieldId] = id; // ensure the group contains its id (can be undefined)
        dataset.update(groupData);
      } else {

        // fetch current order of groups
        var newOrder = dataset.getIds({
          order: me.options.groupOrder
        });

        // restore original order
        if (!util.equalArray(newOrder, me.groupTouchParams.originalOrder)) {
          var origOrder = me.groupTouchParams.originalOrder;
          var numGroups = Math.min(origOrder.length, newOrder.length);
          var curPos = 0;
          while (curPos < numGroups) {
            // as long as the groups are where they should be step down along the groups order
            while (curPos < numGroups && newOrder[curPos] == origOrder[curPos]) {
              curPos++;
            }

            // all ok
            if (curPos >= numGroups) {
              break;
            }

            // found a group that has the wrong position -> switch with the
            // group at the position where other one should be, fix index arrays and continue
            var slippedPosition = newOrder.indexOf(origOrder[curPos]);
            var switchGroup = dataset.get(newOrder[curPos]);
            var shouldBeGroup = dataset.get(origOrder[curPos]);
            me.options.groupOrderSwap(switchGroup, shouldBeGroup, dataset);
            dataset.update(switchGroup);
            dataset.update(shouldBeGroup);

            var switchGroupId = newOrder[curPos];
            newOrder[curPos] = origOrder[curPos];
            newOrder[slippedPosition] = switchGroupId;

            curPos++;
          }
        }
      }
    });

    me.body.emitter.emit('groupDragged', { groupId: id });
  }
};

/**
 * Handle selecting/deselecting an item when tapping it
 * @param {Event} event
 * @private
 */
ItemSet.prototype._onSelectItem = function (event) {
  if (!this.options.selectable) return;

  var ctrlKey = event.srcEvent && (event.srcEvent.ctrlKey || event.srcEvent.metaKey);
  var shiftKey = event.srcEvent && event.srcEvent.shiftKey;
  if (ctrlKey || shiftKey) {
    this._onMultiSelectItem(event);
    return;
  }

  var oldSelection = this.getSelection();

  var item = this.itemFromTarget(event);
  var selection = item ? [item.id] : [];
  this.setSelection(selection);

  var newSelection = this.getSelection();

  // emit a select event,
  // except when old selection is empty and new selection is still empty
  if (newSelection.length > 0 || oldSelection.length > 0) {
    this.body.emitter.emit('select', {
      items: newSelection,
      event: event
    });
  }
};

/**
 * Handle hovering an item
 * @param {Event} event
 * @private
 */
ItemSet.prototype._onMouseOver = function (event) {
  var item = this.itemFromTarget(event);
  if (!item) return;

  // Item we just left
  var related = this.itemFromRelatedTarget(event);
  if (item === related) {
    // We haven't changed item, just element in the item
    return;
  }

  var title = item.getTitle();
  if (this.options.showTooltips && title) {
    if (this.popup == null) {
      this.popup = new Popup(this.body.dom.root, this.options.tooltip.overflowMethod || 'flip');
    }

    this.popup.setText(title);
    var container = this.body.dom.centerContainer;
    this.popup.setPosition(event.clientX - util.getAbsoluteLeft(container) + container.offsetLeft, event.clientY - util.getAbsoluteTop(container) + container.offsetTop);
    this.popup.show();
  } else {
    // Hovering over item without a title, hide popup
    // Needed instead of _just_ in _onMouseOut due to #2572
    if (this.popup != null) {
      this.popup.hide();
    }
  }

  this.body.emitter.emit('itemover', {
    item: item.id,
    event: event
  });
};
ItemSet.prototype._onMouseOut = function (event) {
  var item = this.itemFromTarget(event);
  if (!item) return;

  // Item we are going to
  var related = this.itemFromRelatedTarget(event);
  if (item === related) {
    // We aren't changing item, just element in the item
    return;
  }

  if (this.popup != null) {
    this.popup.hide();
  }

  this.body.emitter.emit('itemout', {
    item: item.id,
    event: event
  });
};
ItemSet.prototype._onMouseMove = function (event) {
  var item = this.itemFromTarget(event);
  if (!item) return;

  if (this.options.showTooltips && this.options.tooltip.followMouse) {
    if (this.popup) {
      if (!this.popup.hidden) {
        var container = this.body.dom.centerContainer;
        this.popup.setPosition(event.clientX - util.getAbsoluteLeft(container) + container.offsetLeft, event.clientY - util.getAbsoluteTop(container) + container.offsetTop);
        this.popup.show(); // Redraw
      }
    }
  }
};

/**
 * Handle mousewheel
 * @param {Event}  event   The event
 * @private
 */
ItemSet.prototype._onMouseWheel = function (event) {
  if (this.touchParams.itemIsDragging) {
    this._onDragEnd(event);
  }
};

/**
 * Handle updates of an item on double tap
 * @param {vis.Item}  item   The item
 * @private
 */
ItemSet.prototype._onUpdateItem = function (item) {
  if (!this.options.selectable) return;
  if (!this.options.editable.add) return;

  var me = this;

  if (item) {
    // execute async handler to update the item (or cancel it)
    var itemData = me.itemsData.get(item.id); // get a clone of the data from the dataset
    this.options.onUpdate(itemData, function (itemData) {
      if (itemData) {
        me.itemsData.getDataSet().update(itemData);
      }
    });
  }
};

/**
 * Handle drop event of data on item
 * Only called when `objectData.target === 'item'.
 * @param {Event} event The event 
 * @private
 */
ItemSet.prototype._onDropObjectOnItem = function (event) {
  var item = this.itemFromTarget(event);
  var objectData = JSON.parse(event.dataTransfer.getData("text"));
  this.options.onDropObjectOnItem(objectData, item);
};

/**
 * Handle creation of an item on double tap or drop of a drag event
 * @param {Event} event   The event
 * @private
 */
ItemSet.prototype._onAddItem = function (event) {
  if (!this.options.selectable) return;
  if (!this.options.editable.add) return;

  var me = this;
  var snap = this.options.snap || null;
  var xAbs;
  var x;
  // add item
  if (this.options.rtl) {
    xAbs = util.getAbsoluteRight(this.dom.frame);
    x = xAbs - event.center.x;
  } else {
    xAbs = util.getAbsoluteLeft(this.dom.frame);
    x = event.center.x - xAbs;
  }
  // var xAbs = util.getAbsoluteLeft(this.dom.frame);
  // var x = event.center.x - xAbs;
  var start = this.body.util.toTime(x);
  var scale = this.body.util.getScale();
  var step = this.body.util.getStep();
  var end;

  var newItemData;
  if (event.type == 'drop') {
    newItemData = JSON.parse(event.dataTransfer.getData("text"));
    newItemData.content = newItemData.content ? newItemData.content : 'new item';
    newItemData.start = newItemData.start ? newItemData.start : snap ? snap(start, scale, step) : start;
    newItemData.type = newItemData.type || 'box';
    newItemData[this.itemsData._fieldId] = newItemData.id || util.randomUUID();

    if (newItemData.type == 'range' && !newItemData.end) {
      end = this.body.util.toTime(x + this.props.width / 5);
      newItemData.end = snap ? snap(end, scale, step) : end;
    }
  } else {
    newItemData = {
      start: snap ? snap(start, scale, step) : start,
      content: 'new item'
    };
    newItemData[this.itemsData._fieldId] = util.randomUUID();

    // when default type is a range, add a default end date to the new item
    if (this.options.type === 'range') {
      end = this.body.util.toTime(x + this.props.width / 5);
      newItemData.end = snap ? snap(end, scale, step) : end;
    }
  }

  var group = this.groupFromTarget(event);
  if (group) {
    newItemData.group = group.groupId;
  }

  // execute async handler to customize (or cancel) adding an item
  newItemData = this._cloneItemData(newItemData); // convert start and end to the correct type
  this.options.onAdd(newItemData, function (item) {
    if (item) {
      me.itemsData.getDataSet().add(item);
      if (event.type == 'drop') {
        me.setSelection([item.id]);
      }
      // TODO: need to trigger a redraw?
    }
  });
};

/**
 * Handle selecting/deselecting multiple items when holding an item
 * @param {Event} event
 * @private
 */
ItemSet.prototype._onMultiSelectItem = function (event) {
  if (!this.options.selectable) return;

  var item = this.itemFromTarget(event);

  if (item) {
    // multi select items (if allowed)

    var selection = this.options.multiselect ? this.getSelection() // take current selection
    : []; // deselect current selection

    var shiftKey = event.srcEvent && event.srcEvent.shiftKey || false;

    if (shiftKey && this.options.multiselect) {
      // select all items between the old selection and the tapped item
      var itemGroup = this.itemsData.get(item.id).group;

      // when filtering get the group of the last selected item
      var lastSelectedGroup = undefined;
      if (this.options.multiselectPerGroup) {
        if (selection.length > 0) {
          lastSelectedGroup = this.itemsData.get(selection[0]).group;
        }
      }

      // determine the selection range
      if (!this.options.multiselectPerGroup || lastSelectedGroup == undefined || lastSelectedGroup == itemGroup) {
        selection.push(item.id);
      }
      var range = ItemSet._getItemRange(this.itemsData.get(selection, this.itemOptions));

      if (!this.options.multiselectPerGroup || lastSelectedGroup == itemGroup) {
        // select all items within the selection range
        selection = [];
        for (var id in this.items) {
          if (this.items.hasOwnProperty(id)) {
            var _item = this.items[id];
            var start = _item.data.start;
            var end = _item.data.end !== undefined ? _item.data.end : start;

            if (start >= range.min && end <= range.max && (!this.options.multiselectPerGroup || lastSelectedGroup == this.itemsData.get(_item.id).group) && !(_item instanceof BackgroundItem)) {
              selection.push(_item.id); // do not use id but item.id, id itself is stringified
            }
          }
        }
      }
    } else {
      // add/remove this item from the current selection
      var index = selection.indexOf(item.id);
      if (index == -1) {
        // item is not yet selected -> select it
        selection.push(item.id);
      } else {
        // item is already selected -> deselect it
        selection.splice(index, 1);
      }
    }

    this.setSelection(selection);

    this.body.emitter.emit('select', {
      items: this.getSelection(),
      event: event
    });
  }
};

/**
 * Calculate the time range of a list of items
 * @param {Array.<Object>} itemsData
 * @return {{min: Date, max: Date}} Returns the range of the provided items
 * @private
 */
ItemSet._getItemRange = function (itemsData) {
  var max = null;
  var min = null;

  itemsData.forEach(function (data) {
    if (min == null || data.start < min) {
      min = data.start;
    }

    if (data.end != undefined) {
      if (max == null || data.end > max) {
        max = data.end;
      }
    } else {
      if (max == null || data.start > max) {
        max = data.start;
      }
    }
  });

  return {
    min: min,
    max: max
  };
};

/**
 * Find an item from an element:
 * searches for the attribute 'timeline-item' in the element's tree
 * @param {HTMLElement} element
 * @return {Item | null} item
 */
ItemSet.prototype.itemFromElement = function (element) {
  var cur = element;
  while (cur) {
    if (cur.hasOwnProperty('timeline-item')) {
      return cur['timeline-item'];
    }
    cur = cur.parentNode;
  }

  return null;
};

/**
 * Find an item from an event target:
 * searches for the attribute 'timeline-item' in the event target's element tree
 * @param {Event} event
 * @return {Item | null} item
 */
ItemSet.prototype.itemFromTarget = function (event) {
  return this.itemFromElement(event.target);
};

/**
 * Find an item from an event's related target:
 * searches for the attribute 'timeline-item' in the related target's element tree
 * @param {Event} event
 * @return {Item | null} item
 */
ItemSet.prototype.itemFromRelatedTarget = function (event) {
  return this.itemFromElement(event.relatedTarget);
};

/**
 * Find the Group from an event target:
 * searches for the attribute 'timeline-group' in the event target's element tree
 * @param {Event} event
 * @return {Group | null} group
 */
ItemSet.prototype.groupFromTarget = function (event) {
  var clientY = event.center ? event.center.y : event.clientY;
  var groupIds = this.groupIds;

  if (groupIds.length <= 0 && this.groupsData) {
    groupIds = this.groupsData.getIds({
      order: this.options.groupOrder
    });
  }

  for (var i = 0; i < groupIds.length; i++) {
    var groupId = groupIds[i];
    var group = this.groups[groupId];
    var foreground = group.dom.foreground;
    var top = util.getAbsoluteTop(foreground);
    if (clientY > top && clientY < top + foreground.offsetHeight) {
      return group;
    }

    if (this.options.orientation.item === 'top') {
      if (i === this.groupIds.length - 1 && clientY > top) {
        return group;
      }
    } else {
      if (i === 0 && clientY < top + foreground.offset) {
        return group;
      }
    }
  }

  return null;
};

/**
 * Find the ItemSet from an event target:
 * searches for the attribute 'timeline-itemset' in the event target's element tree
 * @param {Event} event
 * @return {ItemSet | null} item
 */
ItemSet.itemSetFromTarget = function (event) {
  var target = event.target;
  while (target) {
    if (target.hasOwnProperty('timeline-itemset')) {
      return target['timeline-itemset'];
    }
    target = target.parentNode;
  }

  return null;
};

/**
 * Clone the data of an item, and "normalize" it: convert the start and end date
 * to the type (Date, Moment, ...) configured in the DataSet. If not configured,
 * start and end are converted to Date.
 * @param {Object} itemData, typically `item.data`
 * @param {string} [type]  Optional Date type. If not provided, the type from the DataSet is taken
 * @return {Object} The cloned object
 * @private
 */
ItemSet.prototype._cloneItemData = function (itemData, type) {
  var clone = util.extend({}, itemData);

  if (!type) {
    // convert start and end date to the type (Date, Moment, ...) configured in the DataSet
    type = this.itemsData.getDataSet()._options.type;
  }

  if (clone.start != undefined) {
    clone.start = util.convert(clone.start, type && type.start || 'Date');
  }
  if (clone.end != undefined) {
    clone.end = util.convert(clone.end, type && type.end || 'Date');
  }

  return clone;
};

module.exports = ItemSet;

/***/ }),
/* 100 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


// Utility functions for ordering and stacking of items
var EPSILON = 0.001; // used when checking collisions, to prevent round-off errors

/**
 * Order items by their start data
 * @param {Item[]} items
 */
exports.orderByStart = function (items) {
  items.sort(function (a, b) {
    return a.data.start - b.data.start;
  });
};

/**
 * Order items by their end date. If they have no end date, their start date
 * is used.
 * @param {Item[]} items
 */
exports.orderByEnd = function (items) {
  items.sort(function (a, b) {
    var aTime = 'end' in a.data ? a.data.end : a.data.start,
        bTime = 'end' in b.data ? b.data.end : b.data.start;

    return aTime - bTime;
  });
};

/**
 * Adjust vertical positions of the items such that they don't overlap each
 * other.
 * @param {Item[]} items
 *            All visible items
 * @param {{item: {horizontal: number, vertical: number}, axis: number}} margin
 *            Margins between items and between items and the axis.
 * @param {boolean} [force=false]
 *            If true, all items will be repositioned. If false (default), only
 *            items having a top===null will be re-stacked
 */
exports.stack = function (items, margin, force) {
  if (force) {
    // reset top position of all items
    for (var i = 0; i < items.length; i++) {
      items[i].top = null;
    }
  }

  // calculate new, non-overlapping positions
  for (var i = 0; i < items.length; i++) {
    // eslint-disable-line no-redeclare
    var item = items[i];
    if (item.stack && item.top === null) {
      // initialize top position
      item.top = margin.axis;

      do {
        // TODO: optimize checking for overlap. when there is a gap without items,
        //       you only need to check for items from the next item on, not from zero
        var collidingItem = null;
        for (var j = 0, jj = items.length; j < jj; j++) {
          var other = items[j];
          if (other.top !== null && other !== item && other.stack && exports.collision(item, other, margin.item, other.options.rtl)) {
            collidingItem = other;
            break;
          }
        }

        if (collidingItem != null) {
          // There is a collision. Reposition the items above the colliding element
          item.top = collidingItem.top + collidingItem.height + margin.item.vertical;
        }
      } while (collidingItem);
    }
  }
};

/**
 * Adjust vertical positions of the items within a single subgroup such that they 
 * don't overlap each other.
 * @param {Item[]} items
 *            All items withina subgroup
 * @param {{item: {horizontal: number, vertical: number}, axis: number}} margin
 *            Margins between items and between items and the axis.
 * @param {subgroup} subgroup
 *            The subgroup that is being stacked 
 */
exports.substack = function (items, margin, subgroup) {
  for (var i = 0; i < items.length; i++) {
    items[i].top = null;
  }

  // Set the initial height
  var subgroupHeight = subgroup.height;

  // calculate new, non-overlapping positions
  for (i = 0; i < items.length; i++) {
    var item = items[i];

    if (item.stack && item.top === null) {
      // initialize top position
      item.top = item.baseTop; //margin.axis + item.baseTop;

      do {
        // TODO: optimize checking for overlap. when there is a gap without items,
        //       you only need to check for items from the next item on, not from zero
        var collidingItem = null;
        for (var j = 0, jj = items.length; j < jj; j++) {
          var other = items[j];
          if (other.top !== null && other !== item /*&& other.stack*/ && exports.collision(item, other, margin.item, other.options.rtl)) {
            collidingItem = other;
            break;
          }
        }

        if (collidingItem != null) {
          // There is a collision. Reposition the items above the colliding element
          item.top = collidingItem.top + collidingItem.height + margin.item.vertical; // + item.baseTop;
        }

        if (item.top + item.height > subgroupHeight) {
          subgroupHeight = item.top + item.height;
        }
      } while (collidingItem);
    }
  }

  // Set the new height
  subgroup.height = subgroupHeight - subgroup.top + 0.5 * margin.item.vertical;
};

/**
 * Adjust vertical positions of the items without stacking them
 * @param {Item[]} items
 *            All visible items
 * @param {{item: {horizontal: number, vertical: number}, axis: number}} margin
 *            Margins between items and between items and the axis.
 * @param {subgroups[]} subgroups
 *            All subgroups
 * @param {boolean} stackSubgroups
 */
exports.nostack = function (items, margin, subgroups, stackSubgroups) {
  for (var i = 0; i < items.length; i++) {
    if (items[i].data.subgroup == undefined) {
      items[i].top = margin.item.vertical;
    } else if (items[i].data.subgroup !== undefined && stackSubgroups) {
      var newTop = 0;
      for (var subgroup in subgroups) {
        if (subgroups.hasOwnProperty(subgroup)) {
          if (subgroups[subgroup].visible == true && subgroups[subgroup].index < subgroups[items[i].data.subgroup].index) {
            newTop += subgroups[subgroup].height;
            subgroups[items[i].data.subgroup].top = newTop;
          }
        }
      }
      items[i].top = newTop + 0.5 * margin.item.vertical;
    }
  }
  if (!stackSubgroups) {
    exports.stackSubgroups(items, margin, subgroups);
  }
};

/**
 * Adjust vertical positions of the subgroups such that they don't overlap each
 * other.
 * @param {Array.<vis.Item>} items
 * @param {{item: {horizontal: number, vertical: number}, axis: number}} margin Margins between items and between items and the axis.
 * @param {subgroups[]} subgroups
 *            All subgroups
 */
exports.stackSubgroups = function (items, margin, subgroups) {
  for (var subgroup in subgroups) {
    if (subgroups.hasOwnProperty(subgroup)) {

      subgroups[subgroup].top = 0;
      do {
        // TODO: optimize checking for overlap. when there is a gap without items,
        //       you only need to check for items from the next item on, not from zero
        var collidingItem = null;
        for (var otherSubgroup in subgroups) {
          if (subgroups[otherSubgroup].top !== null && otherSubgroup !== subgroup && subgroups[subgroup].index > subgroups[otherSubgroup].index && exports.collisionByTimes(subgroups[subgroup], subgroups[otherSubgroup])) {
            collidingItem = subgroups[otherSubgroup];
            break;
          }
        }

        if (collidingItem != null) {
          // There is a collision. Reposition the subgroups above the colliding element
          subgroups[subgroup].top = collidingItem.top + collidingItem.height;
        }
      } while (collidingItem);
    }
  }
  for (var i = 0; i < items.length; i++) {
    if (items[i].data.subgroup !== undefined) {
      items[i].top = subgroups[items[i].data.subgroup].top + 0.5 * margin.item.vertical;
    }
  }
};

/**
 * Adjust vertical positions of the subgroups such that they don't overlap each
 * other, then stacks the contents of each subgroup individually.
 * @param {Item[]} subgroupItems
 *            All the items in a subgroup
 * @param {{item: {horizontal: number, vertical: number}, axis: number}} margin
 *            Margins between items and between items and the axis.
 * @param {subgroups[]} subgroups
 *            All subgroups 
 */
exports.stackSubgroupsWithInnerStack = function (subgroupItems, margin, subgroups) {
  var doSubStack = false;

  // Run subgroups in their order (if any)
  var subgroupOrder = [];

  for (var subgroup in subgroups) {
    if (subgroups[subgroup].hasOwnProperty("index")) {
      subgroupOrder[subgroups[subgroup].index] = subgroup;
    } else {
      subgroupOrder.push(subgroup);
    }
  }

  for (var j = 0; j < subgroupOrder.length; j++) {
    subgroup = subgroupOrder[j];
    if (subgroups.hasOwnProperty(subgroup)) {

      doSubStack = doSubStack || subgroups[subgroup].stack;
      subgroups[subgroup].top = 0;

      for (var otherSubgroup in subgroups) {
        if (subgroups[otherSubgroup].visible && subgroups[subgroup].index > subgroups[otherSubgroup].index) {
          subgroups[subgroup].top += subgroups[otherSubgroup].height;
        }
      }

      var items = subgroupItems[subgroup];
      for (var i = 0; i < items.length; i++) {
        if (items[i].data.subgroup !== undefined) {
          items[i].top = subgroups[items[i].data.subgroup].top + 0.5 * margin.item.vertical;

          if (subgroups[subgroup].stack) {
            items[i].baseTop = items[i].top;
          }
        }
      }

      if (doSubStack && subgroups[subgroup].stack) {
        exports.substack(subgroupItems[subgroup], margin, subgroups[subgroup]);
      }
    }
  }
};

/**
 * Test if the two provided items collide
 * The items must have parameters left, width, top, and height.
 * @param {Item} a          The first item
 * @param {Item} b          The second item
 * @param {{horizontal: number, vertical: number}} margin
 *                          An object containing a horizontal and vertical
 *                          minimum required margin.
 * @param {boolean} rtl
 * @return {boolean}        true if a and b collide, else false
 */
exports.collision = function (a, b, margin, rtl) {
  if (rtl) {
    return a.right - margin.horizontal + EPSILON < b.right + b.width && a.right + a.width + margin.horizontal - EPSILON > b.right && a.top - margin.vertical + EPSILON < b.top + b.height && a.top + a.height + margin.vertical - EPSILON > b.top;
  } else {
    return a.left - margin.horizontal + EPSILON < b.left + b.width && a.left + a.width + margin.horizontal - EPSILON > b.left && a.top - margin.vertical + EPSILON < b.top + b.height && a.top + a.height + margin.vertical - EPSILON > b.top;
  }
};

/**
 * Test if the two provided objects collide
 * The objects must have parameters start, end, top, and height.
 * @param {Object} a          The first Object
 * @param {Object} b          The second Object
 * @return {boolean}        true if a and b collide, else false
 */
exports.collisionByTimes = function (a, b) {
  return a.start <= b.start && a.end >= b.start && a.top < b.top + b.height && a.top + a.height > b.top || b.start <= a.start && b.end >= a.start && b.top < a.top + a.height && b.top + b.height > a.top;
};

/***/ }),
/* 101 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var Item = __webpack_require__(38);

/**
 * @constructor BoxItem
 * @extends Item
 * @param {Object} data             Object containing parameters start
 *                                  content, className.
 * @param {{toScreen: function, toTime: function}} conversion
 *                                  Conversion functions from time to screen and vice versa
 * @param {Object} [options]        Configuration options
 *                                  // TODO: describe available options
 */
function BoxItem(data, conversion, options) {
  this.props = {
    dot: {
      width: 0,
      height: 0
    },
    line: {
      width: 0,
      height: 0
    }
  };
  this.options = options;
  // validate data
  if (data) {
    if (data.start == undefined) {
      throw new Error('Property "start" missing in item ' + data);
    }
  }

  Item.call(this, data, conversion, options);
}

BoxItem.prototype = new Item(null, null, null);

/**
 * Check whether this item is visible inside given range
 * @param {{start: number, end: number}} range with a timestamp for start and end
 * @returns {boolean} True if visible
 */
BoxItem.prototype.isVisible = function (range) {
  // determine visibility
  var isVisible;
  var align = this.options.align;
  var widthInMs = this.width * range.getMillisecondsPerPixel();

  if (align == 'right') {
    isVisible = this.data.start.getTime() > range.start && this.data.start.getTime() - widthInMs < range.end;
  } else if (align == 'left') {
    isVisible = this.data.start.getTime() + widthInMs > range.start && this.data.start.getTime() < range.end;
  } else {
    // default or 'center'
    isVisible = this.data.start.getTime() + widthInMs / 2 > range.start && this.data.start.getTime() - widthInMs / 2 < range.end;
  }
  return isVisible;
};

BoxItem.prototype._createDomElement = function () {
  if (!this.dom) {
    // create DOM
    this.dom = {};

    // create main box
    this.dom.box = document.createElement('DIV');

    // contents box (inside the background box). used for making margins
    this.dom.content = document.createElement('DIV');
    this.dom.content.className = 'vis-item-content';
    this.dom.box.appendChild(this.dom.content);

    // line to axis
    this.dom.line = document.createElement('DIV');
    this.dom.line.className = 'vis-line';

    // dot on axis
    this.dom.dot = document.createElement('DIV');
    this.dom.dot.className = 'vis-dot';

    // attach this item as attribute
    this.dom.box['timeline-item'] = this;

    this.dirty = true;
  }
};

BoxItem.prototype._appendDomElement = function () {
  if (!this.parent) {
    throw new Error('Cannot redraw item: no parent attached');
  }
  if (!this.dom.box.parentNode) {
    var foreground = this.parent.dom.foreground;
    if (!foreground) throw new Error('Cannot redraw item: parent has no foreground container element');
    foreground.appendChild(this.dom.box);
  }
  if (!this.dom.line.parentNode) {
    var background = this.parent.dom.background;
    if (!background) throw new Error('Cannot redraw item: parent has no background container element');
    background.appendChild(this.dom.line);
  }
  if (!this.dom.dot.parentNode) {
    var axis = this.parent.dom.axis;
    if (!background) throw new Error('Cannot redraw item: parent has no axis container element');
    axis.appendChild(this.dom.dot);
  }
  this.displayed = true;
};

BoxItem.prototype._updateDirtyDomComponents = function () {
  // An item is marked dirty when:
  // - the item is not yet rendered
  // - the item's data is changed
  // - the item is selected/deselected
  if (this.dirty) {
    this._updateContents(this.dom.content);
    this._updateDataAttributes(this.dom.box);
    this._updateStyle(this.dom.box);

    var editable = this.editable.updateTime || this.editable.updateGroup;

    // update class
    var className = (this.data.className ? ' ' + this.data.className : '') + (this.selected ? ' vis-selected' : '') + (editable ? ' vis-editable' : ' vis-readonly');
    this.dom.box.className = 'vis-item vis-box' + className;
    this.dom.line.className = 'vis-item vis-line' + className;
    this.dom.dot.className = 'vis-item vis-dot' + className;
  }
};

BoxItem.prototype._getDomComponentsSizes = function () {
  return {
    previous: {
      right: this.dom.box.style.right,
      left: this.dom.box.style.left
    },
    dot: {
      height: this.dom.dot.offsetHeight,
      width: this.dom.dot.offsetWidth
    },
    line: {
      width: this.dom.line.offsetWidth
    },
    box: {
      width: this.dom.box.offsetWidth,
      height: this.dom.box.offsetHeight
    }
  };
};

BoxItem.prototype._updateDomComponentsSizes = function (sizes) {
  if (this.options.rtl) {
    this.dom.box.style.right = "0px";
  } else {
    this.dom.box.style.left = "0px";
  }

  // recalculate size
  this.props.dot.height = sizes.dot.height;
  this.props.dot.width = sizes.dot.width;
  this.props.line.width = sizes.line.width;
  this.width = sizes.box.width;
  this.height = sizes.box.height;

  // restore previous position
  if (this.options.rtl) {
    this.dom.box.style.right = sizes.previous.right;
  } else {
    this.dom.box.style.left = sizes.previous.left;
  }

  this.dirty = false;
};

BoxItem.prototype._repaintDomAdditionals = function () {
  this._repaintOnItemUpdateTimeTooltip(this.dom.box);
  this._repaintDragCenter();
  this._repaintDeleteButton(this.dom.box);
};

/**
 * Repaint the item
 * @param {boolean} [returnQueue=false]  return the queue
 * @return {boolean} the redraw queue if returnQueue=true
 */
BoxItem.prototype.redraw = function (returnQueue) {
  var sizes;
  var queue = [
  // create item DOM
  this._createDomElement.bind(this),

  // append DOM to parent DOM
  this._appendDomElement.bind(this),

  // update dirty DOM
  this._updateDirtyDomComponents.bind(this), function () {
    if (this.dirty) {
      sizes = this._getDomComponentsSizes();
    }
  }.bind(this), function () {
    if (this.dirty) {
      this._updateDomComponentsSizes.bind(this)(sizes);
    }
  }.bind(this),

  // repaint DOM additionals
  this._repaintDomAdditionals.bind(this)];

  if (returnQueue) {
    return queue;
  } else {
    var result;
    queue.forEach(function (fn) {
      result = fn();
    });
    return result;
  }
};

/**
 * Show the item in the DOM (when not already displayed). The items DOM will
 * be created when needed.
 */
BoxItem.prototype.show = function () {
  if (!this.displayed) {
    this.redraw();
  }
};

/**
 * Hide the item from the DOM (when visible)
 */
BoxItem.prototype.hide = function () {
  if (this.displayed) {
    var dom = this.dom;

    if (dom.box.parentNode) dom.box.parentNode.removeChild(dom.box);
    if (dom.line.parentNode) dom.line.parentNode.removeChild(dom.line);
    if (dom.dot.parentNode) dom.dot.parentNode.removeChild(dom.dot);

    this.displayed = false;
  }
};

/**
 * Reposition the item horizontally
 * @Override
 */
BoxItem.prototype.repositionX = function () {
  var start = this.conversion.toScreen(this.data.start);
  var align = this.options.align;

  // calculate left position of the box
  if (align == 'right') {
    if (this.options.rtl) {
      this.right = start - this.width;

      // reposition box, line, and dot
      this.dom.box.style.right = this.right + 'px';
      this.dom.line.style.right = start - this.props.line.width + 'px';
      this.dom.dot.style.right = start - this.props.line.width / 2 - this.props.dot.width / 2 + 'px';
    } else {
      this.left = start - this.width;

      // reposition box, line, and dot
      this.dom.box.style.left = this.left + 'px';
      this.dom.line.style.left = start - this.props.line.width + 'px';
      this.dom.dot.style.left = start - this.props.line.width / 2 - this.props.dot.width / 2 + 'px';
    }
  } else if (align == 'left') {
    if (this.options.rtl) {
      this.right = start;

      // reposition box, line, and dot
      this.dom.box.style.right = this.right + 'px';
      this.dom.line.style.right = start + 'px';
      this.dom.dot.style.right = start + this.props.line.width / 2 - this.props.dot.width / 2 + 'px';
    } else {
      this.left = start;

      // reposition box, line, and dot
      this.dom.box.style.left = this.left + 'px';
      this.dom.line.style.left = start + 'px';
      this.dom.dot.style.left = start + this.props.line.width / 2 - this.props.dot.width / 2 + 'px';
    }
  } else {
    // default or 'center'
    if (this.options.rtl) {
      this.right = start - this.width / 2;

      // reposition box, line, and dot
      this.dom.box.style.right = this.right + 'px';
      this.dom.line.style.right = start - this.props.line.width + 'px';
      this.dom.dot.style.right = start - this.props.dot.width / 2 + 'px';
    } else {
      this.left = start - this.width / 2;

      // reposition box, line, and dot
      this.dom.box.style.left = this.left + 'px';
      this.dom.line.style.left = start - this.props.line.width / 2 + 'px';
      this.dom.dot.style.left = start - this.props.dot.width / 2 + 'px';
    }
  }
};

/**
 * Reposition the item vertically
 * @Override
 */
BoxItem.prototype.repositionY = function () {
  var orientation = this.options.orientation.item;
  var box = this.dom.box;
  var line = this.dom.line;
  var dot = this.dom.dot;

  if (orientation == 'top') {
    box.style.top = (this.top || 0) + 'px';

    line.style.top = '0';
    line.style.height = this.parent.top + this.top + 1 + 'px';
    line.style.bottom = '';
  } else {
    // orientation 'bottom'
    var itemSetHeight = this.parent.itemSet.props.height; // TODO: this is nasty
    var lineHeight = itemSetHeight - this.parent.top - this.parent.height + this.top;

    box.style.top = (this.parent.height - this.top - this.height || 0) + 'px';
    line.style.top = itemSetHeight - lineHeight + 'px';
    line.style.bottom = '0';
  }

  dot.style.top = -this.props.dot.height / 2 + 'px';
};

/**
 * Return the width of the item left from its start date
 * @return {number}
 */
BoxItem.prototype.getWidthLeft = function () {
  return this.width / 2;
};

/**
 * Return the width of the item right from its start date
 * @return {number}
 */
BoxItem.prototype.getWidthRight = function () {
  return this.width / 2;
};

module.exports = BoxItem;

/***/ }),
/* 102 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var Item = __webpack_require__(38);

/**
 * @constructor PointItem
 * @extends Item
 * @param {Object} data             Object containing parameters start
 *                                  content, className.
 * @param {{toScreen: function, toTime: function}} conversion
 *                                  Conversion functions from time to screen and vice versa
 * @param {Object} [options]        Configuration options
 *                                  // TODO: describe available options
 */
function PointItem(data, conversion, options) {
  this.props = {
    dot: {
      top: 0,
      width: 0,
      height: 0
    },
    content: {
      height: 0,
      marginLeft: 0,
      marginRight: 0
    }
  };
  this.options = options;
  // validate data
  if (data) {
    if (data.start == undefined) {
      throw new Error('Property "start" missing in item ' + data);
    }
  }

  Item.call(this, data, conversion, options);
}

PointItem.prototype = new Item(null, null, null);

/**
 * Check whether this item is visible inside given range
 * @param {{start: number, end: number}} range with a timestamp for start and end
 * @returns {boolean} True if visible
 */
PointItem.prototype.isVisible = function (range) {
  // determine visibility
  var widthInMs = this.width * range.getMillisecondsPerPixel();

  return this.data.start.getTime() + widthInMs > range.start && this.data.start < range.end;
};

PointItem.prototype._createDomElement = function () {
  if (!this.dom) {
    // create DOM
    this.dom = {};

    // background box
    this.dom.point = document.createElement('div');
    // className is updated in redraw()

    // contents box, right from the dot
    this.dom.content = document.createElement('div');
    this.dom.content.className = 'vis-item-content';
    this.dom.point.appendChild(this.dom.content);

    // dot at start
    this.dom.dot = document.createElement('div');
    this.dom.point.appendChild(this.dom.dot);

    // attach this item as attribute
    this.dom.point['timeline-item'] = this;

    this.dirty = true;
  }
};

PointItem.prototype._appendDomElement = function () {
  if (!this.parent) {
    throw new Error('Cannot redraw item: no parent attached');
  }
  if (!this.dom.point.parentNode) {
    var foreground = this.parent.dom.foreground;
    if (!foreground) {
      throw new Error('Cannot redraw item: parent has no foreground container element');
    }
    foreground.appendChild(this.dom.point);
  }
  this.displayed = true;
};

PointItem.prototype._updateDirtyDomComponents = function () {
  // An item is marked dirty when:
  // - the item is not yet rendered
  // - the item's data is changed
  // - the item is selected/deselected
  if (this.dirty) {
    this._updateContents(this.dom.content);
    this._updateDataAttributes(this.dom.point);
    this._updateStyle(this.dom.point);

    var editable = this.editable.updateTime || this.editable.updateGroup;
    // update class
    var className = (this.data.className ? ' ' + this.data.className : '') + (this.selected ? ' vis-selected' : '') + (editable ? ' vis-editable' : ' vis-readonly');
    this.dom.point.className = 'vis-item vis-point' + className;
    this.dom.dot.className = 'vis-item vis-dot' + className;
  }
};

PointItem.prototype._getDomComponentsSizes = function () {
  return {
    dot: {
      width: this.dom.dot.offsetWidth,
      height: this.dom.dot.offsetHeight
    },
    content: {
      width: this.dom.content.offsetWidth,
      height: this.dom.content.offsetHeight
    },
    point: {
      width: this.dom.point.offsetWidth,
      height: this.dom.point.offsetHeight
    }
  };
};

PointItem.prototype._updateDomComponentsSizes = function (sizes) {
  // recalculate size of dot and contents
  this.props.dot.width = sizes.dot.width;
  this.props.dot.height = sizes.dot.height;
  this.props.content.height = sizes.content.height;

  // resize contents
  if (this.options.rtl) {
    this.dom.content.style.marginRight = 2 * this.props.dot.width + 'px';
  } else {
    this.dom.content.style.marginLeft = 2 * this.props.dot.width + 'px';
  }
  //this.dom.content.style.marginRight = ... + 'px'; // TODO: margin right

  // recalculate size
  this.width = sizes.point.width;
  this.height = sizes.point.height;

  // reposition the dot
  this.dom.dot.style.top = (this.height - this.props.dot.height) / 2 + 'px';
  if (this.options.rtl) {
    this.dom.dot.style.right = this.props.dot.width / 2 + 'px';
  } else {
    this.dom.dot.style.left = this.props.dot.width / 2 + 'px';
  }

  this.dirty = false;
};

PointItem.prototype._repaintDomAdditionals = function () {
  this._repaintOnItemUpdateTimeTooltip(this.dom.point);
  this._repaintDragCenter();
  this._repaintDeleteButton(this.dom.point);
};

/**
 * Repaint the item
 * @param {boolean} [returnQueue=false]  return the queue
 * @return {boolean} the redraw queue if returnQueue=true
 */
PointItem.prototype.redraw = function (returnQueue) {
  var sizes;
  var queue = [
  // create item DOM
  this._createDomElement.bind(this),

  // append DOM to parent DOM
  this._appendDomElement.bind(this),

  // update dirty DOM
  this._updateDirtyDomComponents.bind(this), function () {
    if (this.dirty) {
      sizes = this._getDomComponentsSizes();
    }
  }.bind(this), function () {
    if (this.dirty) {
      this._updateDomComponentsSizes.bind(this)(sizes);
    }
  }.bind(this),

  // repaint DOM additionals
  this._repaintDomAdditionals.bind(this)];

  if (returnQueue) {
    return queue;
  } else {
    var result;
    queue.forEach(function (fn) {
      result = fn();
    });
    return result;
  }
};

/**
 * Show the item in the DOM (when not already visible). The items DOM will
 * be created when needed.
 */
PointItem.prototype.show = function () {
  if (!this.displayed) {
    this.redraw();
  }
};

/**
 * Hide the item from the DOM (when visible)
 */
PointItem.prototype.hide = function () {
  if (this.displayed) {
    if (this.dom.point.parentNode) {
      this.dom.point.parentNode.removeChild(this.dom.point);
    }

    this.displayed = false;
  }
};

/**
 * Reposition the item horizontally
 * @Override
 */
PointItem.prototype.repositionX = function () {
  var start = this.conversion.toScreen(this.data.start);

  if (this.options.rtl) {
    this.right = start - this.props.dot.width;

    // reposition point
    this.dom.point.style.right = this.right + 'px';
  } else {
    this.left = start - this.props.dot.width;

    // reposition point
    this.dom.point.style.left = this.left + 'px';
  }
};

/**
 * Reposition the item vertically
 * @Override
 */
PointItem.prototype.repositionY = function () {
  var orientation = this.options.orientation.item;
  var point = this.dom.point;
  if (orientation == 'top') {
    point.style.top = this.top + 'px';
  } else {
    point.style.top = this.parent.height - this.top - this.height + 'px';
  }
};

/**
 * Return the width of the item left from its start date
 * @return {number}
 */
PointItem.prototype.getWidthLeft = function () {
  return this.props.dot.width;
};

/**
 * Return the width of the item right from  its start date
 * @return {number}
 */
PointItem.prototype.getWidthRight = function () {
  return this.props.dot.width;
};

module.exports = PointItem;

/***/ }),
/* 103 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var Item = __webpack_require__(38);
var BackgroundGroup = __webpack_require__(69);
var RangeItem = __webpack_require__(70);

/**
 * @constructor BackgroundItem
 * @extends Item
 * @param {Object} data             Object containing parameters start, end
 *                                  content, className.
 * @param {{toScreen: function, toTime: function}} conversion
 *                                  Conversion functions from time to screen and vice versa
 * @param {Object} [options]        Configuration options
 *                                  // TODO: describe options
 * // TODO: implement support for the BackgroundItem just having a start, then being displayed as a sort of an annotation
 */
function BackgroundItem(data, conversion, options) {
  this.props = {
    content: {
      width: 0
    }
  };
  this.overflow = false; // if contents can overflow (css styling), this flag is set to true

  // validate data
  if (data) {
    if (data.start == undefined) {
      throw new Error('Property "start" missing in item ' + data.id);
    }
    if (data.end == undefined) {
      throw new Error('Property "end" missing in item ' + data.id);
    }
  }

  Item.call(this, data, conversion, options);
}

BackgroundItem.prototype = new Item(null, null, null);

BackgroundItem.prototype.baseClassName = 'vis-item vis-background';

BackgroundItem.prototype.stack = false;

/**
 * Check whether this item is visible inside given range
 * @param {vis.Range} range with a timestamp for start and end
 * @returns {boolean} True if visible
 */
BackgroundItem.prototype.isVisible = function (range) {
  // determine visibility
  return this.data.start < range.end && this.data.end > range.start;
};

BackgroundItem.prototype._createDomElement = function () {
  if (!this.dom) {
    // create DOM
    this.dom = {};

    // background box
    this.dom.box = document.createElement('div');
    // className is updated in redraw()

    // frame box (to prevent the item contents from overflowing
    this.dom.frame = document.createElement('div');
    this.dom.frame.className = 'vis-item-overflow';
    this.dom.box.appendChild(this.dom.frame);

    // contents box
    this.dom.content = document.createElement('div');
    this.dom.content.className = 'vis-item-content';
    this.dom.frame.appendChild(this.dom.content);

    // Note: we do NOT attach this item as attribute to the DOM,
    //       such that background items cannot be selected
    //this.dom.box['timeline-item'] = this;

    this.dirty = true;
  }
};

BackgroundItem.prototype._appendDomElement = function () {
  if (!this.parent) {
    throw new Error('Cannot redraw item: no parent attached');
  }
  if (!this.dom.box.parentNode) {
    var background = this.parent.dom.background;
    if (!background) {
      throw new Error('Cannot redraw item: parent has no background container element');
    }
    background.appendChild(this.dom.box);
  }
  this.displayed = true;
};

BackgroundItem.prototype._updateDirtyDomComponents = function () {
  // update dirty DOM. An item is marked dirty when:
  // - the item is not yet rendered
  // - the item's data is changed
  // - the item is selected/deselected
  if (this.dirty) {
    this._updateContents(this.dom.content);
    this._updateDataAttributes(this.dom.content);
    this._updateStyle(this.dom.box);

    // update class
    var className = (this.data.className ? ' ' + this.data.className : '') + (this.selected ? ' vis-selected' : '');
    this.dom.box.className = this.baseClassName + className;
  }
};

BackgroundItem.prototype._getDomComponentsSizes = function () {
  // determine from css whether this box has overflow
  this.overflow = window.getComputedStyle(this.dom.content).overflow !== 'hidden';
  return {
    content: {
      width: this.dom.content.offsetWidth
    }
  };
};

BackgroundItem.prototype._updateDomComponentsSizes = function (sizes) {
  // recalculate size
  this.props.content.width = sizes.content.width;
  this.height = 0; // set height zero, so this item will be ignored when stacking items

  this.dirty = false;
};

BackgroundItem.prototype._repaintDomAdditionals = function () {};

/**
 * Repaint the item
 * @param {boolean} [returnQueue=false]  return the queue
 * @return {boolean} the redraw result or the redraw queue if returnQueue=true
 */
BackgroundItem.prototype.redraw = function (returnQueue) {
  var sizes;
  var queue = [
  // create item DOM
  this._createDomElement.bind(this),

  // append DOM to parent DOM
  this._appendDomElement.bind(this), this._updateDirtyDomComponents.bind(this), function () {
    if (this.dirty) {
      sizes = this._getDomComponentsSizes.bind(this)();
    }
  }.bind(this), function () {
    if (this.dirty) {
      this._updateDomComponentsSizes.bind(this)(sizes);
    }
  }.bind(this),

  // repaint DOM additionals
  this._repaintDomAdditionals.bind(this)];

  if (returnQueue) {
    return queue;
  } else {
    var result;
    queue.forEach(function (fn) {
      result = fn();
    });
    return result;
  }
};

/**
 * Show the item in the DOM (when not already visible). The items DOM will
 * be created when needed.
 */
BackgroundItem.prototype.show = RangeItem.prototype.show;

/**
 * Hide the item from the DOM (when visible)
 * @return {Boolean} changed
 */
BackgroundItem.prototype.hide = RangeItem.prototype.hide;

/**
 * Reposition the item horizontally
 * @Override
 */
BackgroundItem.prototype.repositionX = RangeItem.prototype.repositionX;

/**
 * Reposition the item vertically
 * @Override
 */
BackgroundItem.prototype.repositionY = function (margin) {
  // eslint-disable-line no-unused-vars
  var height;
  var orientation = this.options.orientation.item;

  // special positioning for subgroups
  if (this.data.subgroup !== undefined) {
    // TODO: instead of calculating the top position of the subgroups here for every BackgroundItem, calculate the top of the subgroup once in Itemset
    var itemSubgroup = this.data.subgroup;

    this.dom.box.style.height = this.parent.subgroups[itemSubgroup].height + 'px';

    if (orientation == 'top') {
      this.dom.box.style.top = this.parent.top + this.parent.subgroups[itemSubgroup].top + 'px';
    } else {
      this.dom.box.style.top = this.parent.top + this.parent.height - this.parent.subgroups[itemSubgroup].top - this.parent.subgroups[itemSubgroup].height + 'px';
    }
    this.dom.box.style.bottom = '';
  }
  // and in the case of no subgroups:
  else {
      // we want backgrounds with groups to only show in groups.
      if (this.parent instanceof BackgroundGroup) {
        // if the item is not in a group:
        height = Math.max(this.parent.height, this.parent.itemSet.body.domProps.center.height, this.parent.itemSet.body.domProps.centerContainer.height);
        this.dom.box.style.bottom = orientation == 'bottom' ? '0' : '';
        this.dom.box.style.top = orientation == 'top' ? '0' : '';
      } else {
        height = this.parent.height;
        // same alignment for items when orientation is top or bottom
        this.dom.box.style.top = this.parent.top + 'px';
        this.dom.box.style.bottom = '';
      }
    }
  this.dom.box.style.height = height + 'px';
};

module.exports = BackgroundItem;

/***/ }),
/* 104 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Popup is a class to create a popup window with some text
 */
var Popup = function () {
  /**
   * @param {Element} container       The container object.
   * @param {string}  overflowMethod  How the popup should act to overflowing ('flip' or 'cap')
   */
  function Popup(container, overflowMethod) {
    (0, _classCallCheck3['default'])(this, Popup);

    this.container = container;
    this.overflowMethod = overflowMethod || 'cap';

    this.x = 0;
    this.y = 0;
    this.padding = 5;
    this.hidden = false;

    // create the frame
    this.frame = document.createElement('div');
    this.frame.className = 'vis-tooltip';
    this.container.appendChild(this.frame);
  }

  /**
   * @param {number} x   Horizontal position of the popup window
   * @param {number} y   Vertical position of the popup window
   */


  (0, _createClass3['default'])(Popup, [{
    key: 'setPosition',
    value: function setPosition(x, y) {
      this.x = parseInt(x);
      this.y = parseInt(y);
    }

    /**
     * Set the content for the popup window. This can be HTML code or text.
     * @param {string | Element} content
     */

  }, {
    key: 'setText',
    value: function setText(content) {
      if (content instanceof Element) {
        this.frame.innerHTML = '';
        this.frame.appendChild(content);
      } else {
        this.frame.innerHTML = content; // string containing text or HTML
      }
    }

    /**
     * Show the popup window
     * @param {boolean} [doShow]    Show or hide the window
     */

  }, {
    key: 'show',
    value: function show(doShow) {
      if (doShow === undefined) {
        doShow = true;
      }

      if (doShow === true) {
        var height = this.frame.clientHeight;
        var width = this.frame.clientWidth;
        var maxHeight = this.frame.parentNode.clientHeight;
        var maxWidth = this.frame.parentNode.clientWidth;

        var left = 0,
            top = 0;

        if (this.overflowMethod == 'flip') {
          var isLeft = false,
              isTop = true; // Where around the position it's located

          if (this.y - height < this.padding) {
            isTop = false;
          }

          if (this.x + width > maxWidth - this.padding) {
            isLeft = true;
          }

          if (isLeft) {
            left = this.x - width;
          } else {
            left = this.x;
          }

          if (isTop) {
            top = this.y - height;
          } else {
            top = this.y;
          }
        } else {
          top = this.y - height;
          if (top + height + this.padding > maxHeight) {
            top = maxHeight - height - this.padding;
          }
          if (top < this.padding) {
            top = this.padding;
          }

          left = this.x;
          if (left + width + this.padding > maxWidth) {
            left = maxWidth - width - this.padding;
          }
          if (left < this.padding) {
            left = this.padding;
          }
        }

        this.frame.style.left = left + "px";
        this.frame.style.top = top + "px";
        this.frame.style.visibility = "visible";
        this.hidden = false;
      } else {
        this.hide();
      }
    }

    /**
     * Hide the popup window
     */

  }, {
    key: 'hide',
    value: function hide() {
      this.hidden = true;
      this.frame.style.left = "0";
      this.frame.style.top = "0";
      this.frame.style.visibility = "hidden";
    }

    /**
     * Remove the popup window
     */

  }, {
    key: 'destroy',
    value: function destroy() {
      this.frame.parentNode.removeChild(this.frame); // Remove element from DOM
    }
  }]);
  return Popup;
}();

exports['default'] = Popup;

/***/ }),
/* 105 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
/**
 * This object contains all possible options. It will check if the types are correct, if required if the option is one
 * of the allowed values.
 *
 * __any__ means that the name of the property does not matter.
 * __type__ is a required field for all objects and contains the allowed types of all objects
 */
var string = 'string';
var bool = 'boolean';
var number = 'number';
var array = 'array';
var date = 'date';
var object = 'object'; // should only be in a __type__ property
var dom = 'dom';
var moment = 'moment';
var any = 'any';

var allOptions = {
  configure: {
    enabled: { 'boolean': bool },
    filter: { 'boolean': bool, 'function': 'function' },
    container: { dom: dom },
    __type__: { object: object, 'boolean': bool, 'function': 'function' }
  },

  //globals :
  align: { string: string },
  rtl: { 'boolean': bool, 'undefined': 'undefined' },
  rollingMode: {
    follow: { 'boolean': bool },
    offset: { number: number, 'undefined': 'undefined' },
    __type__: { object: object }
  },
  verticalScroll: { 'boolean': bool, 'undefined': 'undefined' },
  horizontalScroll: { 'boolean': bool, 'undefined': 'undefined' },
  autoResize: { 'boolean': bool },
  throttleRedraw: { number: number }, // TODO: DEPRICATED see https://github.com/almende/vis/issues/2511
  clickToUse: { 'boolean': bool },
  dataAttributes: { string: string, array: array },
  editable: {
    add: { 'boolean': bool, 'undefined': 'undefined' },
    remove: { 'boolean': bool, 'undefined': 'undefined' },
    updateGroup: { 'boolean': bool, 'undefined': 'undefined' },
    updateTime: { 'boolean': bool, 'undefined': 'undefined' },
    overrideItems: { 'boolean': bool, 'undefined': 'undefined' },
    __type__: { 'boolean': bool, object: object }
  },
  end: { number: number, date: date, string: string, moment: moment },
  format: {
    minorLabels: {
      millisecond: { string: string, 'undefined': 'undefined' },
      second: { string: string, 'undefined': 'undefined' },
      minute: { string: string, 'undefined': 'undefined' },
      hour: { string: string, 'undefined': 'undefined' },
      weekday: { string: string, 'undefined': 'undefined' },
      day: { string: string, 'undefined': 'undefined' },
      week: { string: string, 'undefined': 'undefined' },
      month: { string: string, 'undefined': 'undefined' },
      year: { string: string, 'undefined': 'undefined' },
      __type__: { object: object, 'function': 'function' }
    },
    majorLabels: {
      millisecond: { string: string, 'undefined': 'undefined' },
      second: { string: string, 'undefined': 'undefined' },
      minute: { string: string, 'undefined': 'undefined' },
      hour: { string: string, 'undefined': 'undefined' },
      weekday: { string: string, 'undefined': 'undefined' },
      day: { string: string, 'undefined': 'undefined' },
      week: { string: string, 'undefined': 'undefined' },
      month: { string: string, 'undefined': 'undefined' },
      year: { string: string, 'undefined': 'undefined' },
      __type__: { object: object, 'function': 'function' }
    },
    __type__: { object: object }
  },
  moment: { 'function': 'function' },
  groupOrder: { string: string, 'function': 'function' },
  groupEditable: {
    add: { 'boolean': bool, 'undefined': 'undefined' },
    remove: { 'boolean': bool, 'undefined': 'undefined' },
    order: { 'boolean': bool, 'undefined': 'undefined' },
    __type__: { 'boolean': bool, object: object }
  },
  groupOrderSwap: { 'function': 'function' },
  height: { string: string, number: number },
  hiddenDates: {
    start: { date: date, number: number, string: string, moment: moment },
    end: { date: date, number: number, string: string, moment: moment },
    repeat: { string: string },
    __type__: { object: object, array: array }
  },
  itemsAlwaysDraggable: {
    item: { 'boolean': bool, 'undefined': 'undefined' },
    range: { 'boolean': bool, 'undefined': 'undefined' },
    __type__: { 'boolean': bool, object: object }
  },
  limitSize: { 'boolean': bool },
  locale: { string: string },
  locales: {
    __any__: { any: any },
    __type__: { object: object }
  },
  margin: {
    axis: { number: number },
    item: {
      horizontal: { number: number, 'undefined': 'undefined' },
      vertical: { number: number, 'undefined': 'undefined' },
      __type__: { object: object, number: number }
    },
    __type__: { object: object, number: number }
  },
  max: { date: date, number: number, string: string, moment: moment },
  maxHeight: { number: number, string: string },
  maxMinorChars: { number: number },
  min: { date: date, number: number, string: string, moment: moment },
  minHeight: { number: number, string: string },
  moveable: { 'boolean': bool },
  multiselect: { 'boolean': bool },
  multiselectPerGroup: { 'boolean': bool },
  onAdd: { 'function': 'function' },
  onDropObjectOnItem: { 'function': 'function' },
  onUpdate: { 'function': 'function' },
  onMove: { 'function': 'function' },
  onMoving: { 'function': 'function' },
  onRemove: { 'function': 'function' },
  onAddGroup: { 'function': 'function' },
  onMoveGroup: { 'function': 'function' },
  onRemoveGroup: { 'function': 'function' },
  onInitialDrawComplete: { 'function': 'function' },
  order: { 'function': 'function' },
  orientation: {
    axis: { string: string, 'undefined': 'undefined' },
    item: { string: string, 'undefined': 'undefined' },
    __type__: { string: string, object: object }
  },
  selectable: { 'boolean': bool },
  showCurrentTime: { 'boolean': bool },
  showMajorLabels: { 'boolean': bool },
  showMinorLabels: { 'boolean': bool },
  stack: { 'boolean': bool },
  stackSubgroups: { 'boolean': bool },
  snap: { 'function': 'function', 'null': 'null' },
  start: { date: date, number: number, string: string, moment: moment },
  template: { 'function': 'function' },
  groupTemplate: { 'function': 'function' },
  visibleFrameTemplate: { string: string, 'function': 'function' },
  showTooltips: { 'boolean': bool },
  tooltip: {
    followMouse: { 'boolean': bool },
    overflowMethod: { 'string': ['cap', 'flip'] },
    __type__: { object: object }
  },
  tooltipOnItemUpdateTime: {
    template: { 'function': 'function' },
    __type__: { 'boolean': bool, object: object }
  },
  timeAxis: {
    scale: { string: string, 'undefined': 'undefined' },
    step: { number: number, 'undefined': 'undefined' },
    __type__: { object: object }
  },
  type: { string: string },
  width: { string: string, number: number },
  zoomable: { 'boolean': bool },
  zoomKey: { string: ['ctrlKey', 'altKey', 'metaKey', ''] },
  zoomMax: { number: number },
  zoomMin: { number: number },

  __type__: { object: object }
};

var configureOptions = {
  global: {
    align: ['center', 'left', 'right'],
    direction: false,
    autoResize: true,
    clickToUse: false,
    // dataAttributes: ['all'], // FIXME: can be 'all' or string[]
    editable: {
      add: false,
      remove: false,
      updateGroup: false,
      updateTime: false
    },
    end: '',
    format: {
      minorLabels: {
        millisecond: 'SSS',
        second: 's',
        minute: 'HH:mm',
        hour: 'HH:mm',
        weekday: 'ddd D',
        day: 'D',
        week: 'w',
        month: 'MMM',
        year: 'YYYY'
      },
      majorLabels: {
        millisecond: 'HH:mm:ss',
        second: 'D MMMM HH:mm',
        minute: 'ddd D MMMM',
        hour: 'ddd D MMMM',
        weekday: 'MMMM YYYY',
        day: 'MMMM YYYY',
        week: 'MMMM YYYY',
        month: 'YYYY',
        year: ''
      }
    },

    //groupOrder: {string, 'function': 'function'},
    groupsDraggable: false,
    height: '',
    //hiddenDates: {object, array},
    locale: '',
    margin: {
      axis: [20, 0, 100, 1],
      item: {
        horizontal: [10, 0, 100, 1],
        vertical: [10, 0, 100, 1]
      }
    },
    max: '',
    maxHeight: '',
    maxMinorChars: [7, 0, 20, 1],
    min: '',
    minHeight: '',
    moveable: false,
    multiselect: false,
    multiselectPerGroup: false,
    //onAdd: {'function': 'function'},
    //onUpdate: {'function': 'function'},
    //onMove: {'function': 'function'},
    //onMoving: {'function': 'function'},
    //onRename: {'function': 'function'},
    //order: {'function': 'function'},
    orientation: {
      axis: ['both', 'bottom', 'top'],
      item: ['bottom', 'top']
    },
    selectable: true,
    showCurrentTime: false,
    showMajorLabels: true,
    showMinorLabels: true,
    stack: true,
    stackSubgroups: true,
    //snap: {'function': 'function', nada},
    start: '',
    //template: {'function': 'function'},
    //timeAxis: {
    //  scale: ['millisecond', 'second', 'minute', 'hour', 'weekday', 'day', 'week', 'month', 'year'],
    //  step: [1, 1, 10, 1]
    //},
    showTooltips: true,
    tooltip: {
      followMouse: false,
      overflowMethod: 'flip'
    },
    tooltipOnItemUpdateTime: false,
    type: ['box', 'point', 'range', 'background'],
    width: '100%',
    zoomable: true,
    zoomKey: ['ctrlKey', 'altKey', 'metaKey', ''],
    zoomMax: [315360000000000, 10, 315360000000000, 1],
    zoomMin: [10, 10, 315360000000000, 1]
  }
};

exports.allOptions = allOptions;
exports.configureOptions = configureOptions;

/***/ }),
/* 106 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var DOMutil = __webpack_require__(14);
var DataSet = __webpack_require__(11);
var DataView = __webpack_require__(12);
var Component = __webpack_require__(16);
var DataAxis = __webpack_require__(107);
var GraphGroup = __webpack_require__(109);
var Legend = __webpack_require__(112);
var Bars = __webpack_require__(110);
var Lines = __webpack_require__(111);
var Points = __webpack_require__(72);

var UNGROUPED = '__ungrouped__'; // reserved group id for ungrouped items

/**
 * This is the constructor of the LineGraph. It requires a Timeline body and options.
 *
 * @param {vis.Timeline.body} body
 * @param {Object} options
 * @constructor LineGraph
 * @extends Component
 */
function LineGraph(body, options) {
  this.id = util.randomUUID();
  this.body = body;

  this.defaultOptions = {
    yAxisOrientation: 'left',
    defaultGroup: 'default',
    sort: true,
    sampling: true,
    stack: false,
    graphHeight: '400px',
    shaded: {
      enabled: false,
      orientation: 'bottom' // top, bottom, zero
    },
    style: 'line', // line, bar
    barChart: {
      width: 50,
      sideBySide: false,
      align: 'center' // left, center, right
    },
    interpolation: {
      enabled: true,
      parametrization: 'centripetal', // uniform (alpha = 0.0), chordal (alpha = 1.0), centripetal (alpha = 0.5)
      alpha: 0.5
    },
    drawPoints: {
      enabled: true,
      size: 6,
      style: 'square' // square, circle
    },
    dataAxis: {}, //Defaults are done on DataAxis level
    legend: {}, //Defaults are done on Legend level
    groups: {
      visibility: {}
    }
  };

  // options is shared by this lineGraph and all its items
  this.options = util.extend({}, this.defaultOptions);
  this.dom = {};
  this.props = {};
  this.hammer = null;
  this.groups = {};
  this.abortedGraphUpdate = false;
  this.updateSVGheight = false;
  this.updateSVGheightOnResize = false;
  this.forceGraphUpdate = true;

  var me = this;
  this.itemsData = null; // DataSet
  this.groupsData = null; // DataSet

  // listeners for the DataSet of the items
  this.itemListeners = {
    'add': function add(event, params, senderId) {
      // eslint-disable-line no-unused-vars
      me._onAdd(params.items);
    },
    'update': function update(event, params, senderId) {
      // eslint-disable-line no-unused-vars
      me._onUpdate(params.items);
    },
    'remove': function remove(event, params, senderId) {
      // eslint-disable-line no-unused-vars
      me._onRemove(params.items);
    }
  };

  // listeners for the DataSet of the groups
  this.groupListeners = {
    'add': function add(event, params, senderId) {
      // eslint-disable-line no-unused-vars
      me._onAddGroups(params.items);
    },
    'update': function update(event, params, senderId) {
      // eslint-disable-line no-unused-vars
      me._onUpdateGroups(params.items);
    },
    'remove': function remove(event, params, senderId) {
      // eslint-disable-line no-unused-vars
      me._onRemoveGroups(params.items);
    }
  };

  this.items = {}; // object with an Item for every data item
  this.selection = []; // list with the ids of all selected nodes
  this.lastStart = this.body.range.start;
  this.touchParams = {}; // stores properties while dragging

  this.svgElements = {};
  this.setOptions(options);
  this.groupsUsingDefaultStyles = [0];
  this.body.emitter.on('rangechanged', function () {
    me.lastStart = me.body.range.start;
    me.svg.style.left = util.option.asSize(-me.props.width);

    me.forceGraphUpdate = true;
    //Is this local redraw necessary? (Core also does a change event!)
    me.redraw.call(me);
  });

  // create the HTML DOM
  this._create();
  this.framework = { svg: this.svg, svgElements: this.svgElements, options: this.options, groups: this.groups };
}

LineGraph.prototype = new Component();

/**
 * Create the HTML DOM for the ItemSet
 */
LineGraph.prototype._create = function () {
  var frame = document.createElement('div');
  frame.className = 'vis-line-graph';
  this.dom.frame = frame;

  // create svg element for graph drawing.
  this.svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
  this.svg.style.position = 'relative';
  this.svg.style.height = ('' + this.options.graphHeight).replace('px', '') + 'px';
  this.svg.style.display = 'block';
  frame.appendChild(this.svg);

  // data axis
  this.options.dataAxis.orientation = 'left';
  this.yAxisLeft = new DataAxis(this.body, this.options.dataAxis, this.svg, this.options.groups);

  this.options.dataAxis.orientation = 'right';
  this.yAxisRight = new DataAxis(this.body, this.options.dataAxis, this.svg, this.options.groups);
  delete this.options.dataAxis.orientation;

  // legends
  this.legendLeft = new Legend(this.body, this.options.legend, 'left', this.options.groups);
  this.legendRight = new Legend(this.body, this.options.legend, 'right', this.options.groups);

  this.show();
};

/**
 * set the options of the LineGraph. the mergeOptions is used for subObjects that have an enabled element.
 * @param {object} options
 */
LineGraph.prototype.setOptions = function (options) {
  if (options) {
    var fields = ['sampling', 'defaultGroup', 'stack', 'height', 'graphHeight', 'yAxisOrientation', 'style', 'barChart', 'dataAxis', 'sort', 'groups'];
    if (options.graphHeight === undefined && options.height !== undefined) {
      this.updateSVGheight = true;
      this.updateSVGheightOnResize = true;
    } else if (this.body.domProps.centerContainer.height !== undefined && options.graphHeight !== undefined) {
      if (parseInt((options.graphHeight + '').replace("px", '')) < this.body.domProps.centerContainer.height) {
        this.updateSVGheight = true;
      }
    }
    util.selectiveDeepExtend(fields, this.options, options);
    util.mergeOptions(this.options, options, 'interpolation');
    util.mergeOptions(this.options, options, 'drawPoints');
    util.mergeOptions(this.options, options, 'shaded');
    util.mergeOptions(this.options, options, 'legend');

    if (options.interpolation) {
      if ((0, _typeof3['default'])(options.interpolation) == 'object') {
        if (options.interpolation.parametrization) {
          if (options.interpolation.parametrization == 'uniform') {
            this.options.interpolation.alpha = 0;
          } else if (options.interpolation.parametrization == 'chordal') {
            this.options.interpolation.alpha = 1.0;
          } else {
            this.options.interpolation.parametrization = 'centripetal';
            this.options.interpolation.alpha = 0.5;
          }
        }
      }
    }

    if (this.yAxisLeft) {
      if (options.dataAxis !== undefined) {
        this.yAxisLeft.setOptions(this.options.dataAxis);
        this.yAxisRight.setOptions(this.options.dataAxis);
      }
    }

    if (this.legendLeft) {
      if (options.legend !== undefined) {
        this.legendLeft.setOptions(this.options.legend);
        this.legendRight.setOptions(this.options.legend);
      }
    }

    if (this.groups.hasOwnProperty(UNGROUPED)) {
      this.groups[UNGROUPED].setOptions(options);
    }
  }

  // this is used to redraw the graph if the visibility of the groups is changed.
  if (this.dom.frame) {
    //not on initial run?
    this.forceGraphUpdate = true;
    this.body.emitter.emit("_change", { queue: true });
  }
};

/**
 * Hide the component from the DOM
 */
LineGraph.prototype.hide = function () {
  // remove the frame containing the items
  if (this.dom.frame.parentNode) {
    this.dom.frame.parentNode.removeChild(this.dom.frame);
  }
};

/**
 * Show the component in the DOM (when not already visible).
 */
LineGraph.prototype.show = function () {
  // show frame containing the items
  if (!this.dom.frame.parentNode) {
    this.body.dom.center.appendChild(this.dom.frame);
  }
};

/**
 * Set items
 * @param {vis.DataSet | null} items
 */
LineGraph.prototype.setItems = function (items) {
  var me = this,
      ids,
      oldItemsData = this.itemsData;

  // replace the dataset
  if (!items) {
    this.itemsData = null;
  } else if (items instanceof DataSet || items instanceof DataView) {
    this.itemsData = items;
  } else {
    throw new TypeError('Data must be an instance of DataSet or DataView');
  }

  if (oldItemsData) {
    // unsubscribe from old dataset
    util.forEach(this.itemListeners, function (callback, event) {
      oldItemsData.off(event, callback);
    });

    // remove all drawn items
    ids = oldItemsData.getIds();
    this._onRemove(ids);
  }

  if (this.itemsData) {
    // subscribe to new dataset
    var id = this.id;
    util.forEach(this.itemListeners, function (callback, event) {
      me.itemsData.on(event, callback, id);
    });

    // add all new items
    ids = this.itemsData.getIds();
    this._onAdd(ids);
  }
};

/**
 * Set groups
 * @param {vis.DataSet} groups
 */
LineGraph.prototype.setGroups = function (groups) {
  var me = this;
  var ids;

  // unsubscribe from current dataset
  if (this.groupsData) {
    util.forEach(this.groupListeners, function (callback, event) {
      me.groupsData.off(event, callback);
    });

    // remove all drawn groups
    ids = this.groupsData.getIds();
    this.groupsData = null;
    for (var i = 0; i < ids.length; i++) {
      this._removeGroup(ids[i]);
    }
  }

  // replace the dataset
  if (!groups) {
    this.groupsData = null;
  } else if (groups instanceof DataSet || groups instanceof DataView) {
    this.groupsData = groups;
  } else {
    throw new TypeError('Data must be an instance of DataSet or DataView');
  }

  if (this.groupsData) {
    // subscribe to new dataset
    var id = this.id;
    util.forEach(this.groupListeners, function (callback, event) {
      me.groupsData.on(event, callback, id);
    });

    // draw all ms
    ids = this.groupsData.getIds();
    this._onAddGroups(ids);
  }
};

LineGraph.prototype._onUpdate = function (ids) {
  this._updateAllGroupData(ids);
};
LineGraph.prototype._onAdd = function (ids) {
  this._onUpdate(ids);
};
LineGraph.prototype._onRemove = function (ids) {
  this._onUpdate(ids);
};
LineGraph.prototype._onUpdateGroups = function (groupIds) {
  this._updateAllGroupData(null, groupIds);
};
LineGraph.prototype._onAddGroups = function (groupIds) {
  this._onUpdateGroups(groupIds);
};

/**
 * this cleans the group out off the legends and the dataaxis, updates the ungrouped and updates the graph
 * @param {Array} groupIds
 * @private
 */
LineGraph.prototype._onRemoveGroups = function (groupIds) {
  for (var i = 0; i < groupIds.length; i++) {
    this._removeGroup(groupIds[i]);
  }
  this.forceGraphUpdate = true;
  this.body.emitter.emit("_change", { queue: true });
};

/**
 * this cleans the group out off the legends and the dataaxis
 * @param {vis.GraphGroup.id} groupId
 * @private
 */
LineGraph.prototype._removeGroup = function (groupId) {
  if (this.groups.hasOwnProperty(groupId)) {
    if (this.groups[groupId].options.yAxisOrientation == 'right') {
      this.yAxisRight.removeGroup(groupId);
      this.legendRight.removeGroup(groupId);
      this.legendRight.redraw();
    } else {
      this.yAxisLeft.removeGroup(groupId);
      this.legendLeft.removeGroup(groupId);
      this.legendLeft.redraw();
    }
    delete this.groups[groupId];
  }
};

/**
 * update a group object with the group dataset entree
 *
 * @param {vis.GraphGroup} group
 * @param {vis.GraphGroup.id} groupId
 * @private
 */
LineGraph.prototype._updateGroup = function (group, groupId) {
  if (!this.groups.hasOwnProperty(groupId)) {
    this.groups[groupId] = new GraphGroup(group, groupId, this.options, this.groupsUsingDefaultStyles);
    if (this.groups[groupId].options.yAxisOrientation == 'right') {
      this.yAxisRight.addGroup(groupId, this.groups[groupId]);
      this.legendRight.addGroup(groupId, this.groups[groupId]);
    } else {
      this.yAxisLeft.addGroup(groupId, this.groups[groupId]);
      this.legendLeft.addGroup(groupId, this.groups[groupId]);
    }
  } else {
    this.groups[groupId].update(group);
    if (this.groups[groupId].options.yAxisOrientation == 'right') {
      this.yAxisRight.updateGroup(groupId, this.groups[groupId]);
      this.legendRight.updateGroup(groupId, this.groups[groupId]);
      //If yAxisOrientation changed, clean out the group from the other axis.
      this.yAxisLeft.removeGroup(groupId);
      this.legendLeft.removeGroup(groupId);
    } else {
      this.yAxisLeft.updateGroup(groupId, this.groups[groupId]);
      this.legendLeft.updateGroup(groupId, this.groups[groupId]);
      //If yAxisOrientation changed, clean out the group from the other axis.
      this.yAxisRight.removeGroup(groupId);
      this.legendRight.removeGroup(groupId);
    }
  }
  this.legendLeft.redraw();
  this.legendRight.redraw();
};

/**
 * this updates all groups, it is used when there is an update the the itemset.
 *
 * @param  {Array} ids
 * @param  {Array} groupIds
 * @private
 */
LineGraph.prototype._updateAllGroupData = function (ids, groupIds) {
  if (this.itemsData != null) {
    var groupsContent = {};
    var items = this.itemsData.get();
    var fieldId = this.itemsData._fieldId;
    var idMap = {};
    if (ids) {
      ids.map(function (id) {
        idMap[id] = id;
      });
    }

    //pre-Determine array sizes, for more efficient memory claim
    var groupCounts = {};
    for (var i = 0; i < items.length; i++) {
      var item = items[i];
      var groupId = item.group;
      if (groupId === null || groupId === undefined) {
        groupId = UNGROUPED;
      }
      groupCounts.hasOwnProperty(groupId) ? groupCounts[groupId]++ : groupCounts[groupId] = 1;
    }

    //Pre-load arrays from existing groups if items are not changed (not in ids)
    var existingItemsMap = {};
    if (!groupIds && ids) {
      for (groupId in this.groups) {
        if (this.groups.hasOwnProperty(groupId)) {
          group = this.groups[groupId];
          var existing_items = group.getItems();

          groupsContent[groupId] = existing_items.filter(function (item) {
            existingItemsMap[item[fieldId]] = item[fieldId];
            return item[fieldId] !== idMap[item[fieldId]];
          });
          var newLength = groupCounts[groupId];
          groupCounts[groupId] -= groupsContent[groupId].length;
          if (groupsContent[groupId].length < newLength) {
            groupsContent[groupId][newLength - 1] = {};
          }
        }
      }
    }

    //Now insert data into the arrays.
    for (i = 0; i < items.length; i++) {
      item = items[i];
      groupId = item.group;
      if (groupId === null || groupId === undefined) {
        groupId = UNGROUPED;
      }
      if (!groupIds && ids && item[fieldId] !== idMap[item[fieldId]] && existingItemsMap.hasOwnProperty(item[fieldId])) {
        continue;
      }
      if (!groupsContent.hasOwnProperty(groupId)) {
        groupsContent[groupId] = new Array(groupCounts[groupId]);
      }
      //Copy data (because of unmodifiable DataView input.
      var extended = util.bridgeObject(item);
      extended.x = util.convert(item.x, 'Date');
      extended.end = util.convert(item.end, 'Date');
      extended.orginalY = item.y; //real Y
      extended.y = Number(item.y);
      extended[fieldId] = item[fieldId];

      var index = groupsContent[groupId].length - groupCounts[groupId]--;
      groupsContent[groupId][index] = extended;
    }

    //Make sure all groups are present, to allow removal of old groups
    for (groupId in this.groups) {
      if (this.groups.hasOwnProperty(groupId)) {
        if (!groupsContent.hasOwnProperty(groupId)) {
          groupsContent[groupId] = new Array(0);
        }
      }
    }

    //Update legendas, style and axis
    for (groupId in groupsContent) {
      if (groupsContent.hasOwnProperty(groupId)) {
        if (groupsContent[groupId].length == 0) {
          if (this.groups.hasOwnProperty(groupId)) {
            this._removeGroup(groupId);
          }
        } else {
          var group = undefined;
          if (this.groupsData != undefined) {
            group = this.groupsData.get(groupId);
          }
          if (group == undefined) {
            group = { id: groupId, content: this.options.defaultGroup + groupId };
          }
          this._updateGroup(group, groupId);
          this.groups[groupId].setItems(groupsContent[groupId]);
        }
      }
    }
    this.forceGraphUpdate = true;
    this.body.emitter.emit("_change", { queue: true });
  }
};

/**
 * Redraw the component, mandatory function
 * @return {boolean} Returns true if the component is resized
 */
LineGraph.prototype.redraw = function () {
  var resized = false;

  // calculate actual size and position
  this.props.width = this.dom.frame.offsetWidth;
  this.props.height = this.body.domProps.centerContainer.height - this.body.domProps.border.top - this.body.domProps.border.bottom;

  // check if this component is resized
  resized = this._isResized() || resized;

  // check whether zoomed (in that case we need to re-stack everything)
  var visibleInterval = this.body.range.end - this.body.range.start;
  var zoomed = visibleInterval != this.lastVisibleInterval;
  this.lastVisibleInterval = visibleInterval;

  // the svg element is three times as big as the width, this allows for fully dragging left and right
  // without reloading the graph. the controls for this are bound to events in the constructor
  if (resized == true) {
    this.svg.style.width = util.option.asSize(3 * this.props.width);
    this.svg.style.left = util.option.asSize(-this.props.width);

    // if the height of the graph is set as proportional, change the height of the svg
    if ((this.options.height + '').indexOf("%") != -1 || this.updateSVGheightOnResize == true) {
      this.updateSVGheight = true;
    }
  }

  // update the height of the graph on each redraw of the graph.
  if (this.updateSVGheight == true) {
    if (this.options.graphHeight != this.props.height + 'px') {
      this.options.graphHeight = this.props.height + 'px';
      this.svg.style.height = this.props.height + 'px';
    }
    this.updateSVGheight = false;
  } else {
    this.svg.style.height = ('' + this.options.graphHeight).replace('px', '') + 'px';
  }

  // zoomed is here to ensure that animations are shown correctly.
  if (resized == true || zoomed == true || this.abortedGraphUpdate == true || this.forceGraphUpdate == true) {
    resized = this._updateGraph() || resized;
    this.forceGraphUpdate = false;
  } else {
    // move the whole svg while dragging
    if (this.lastStart != 0) {
      var offset = this.body.range.start - this.lastStart;
      var range = this.body.range.end - this.body.range.start;
      if (this.props.width != 0) {
        var rangePerPixelInv = this.props.width / range;
        var xOffset = offset * rangePerPixelInv;
        this.svg.style.left = -this.props.width - xOffset + 'px';
      }
    }
  }
  this.legendLeft.redraw();
  this.legendRight.redraw();
  return resized;
};

LineGraph.prototype._getSortedGroupIds = function () {
  // getting group Ids
  var grouplist = [];
  for (var groupId in this.groups) {
    if (this.groups.hasOwnProperty(groupId)) {
      var group = this.groups[groupId];
      if (group.visible == true && (this.options.groups.visibility[groupId] === undefined || this.options.groups.visibility[groupId] == true)) {
        grouplist.push({ id: groupId, zIndex: group.options.zIndex });
      }
    }
  }
  util.insertSort(grouplist, function (a, b) {
    var az = a.zIndex;
    var bz = b.zIndex;
    if (az === undefined) az = 0;
    if (bz === undefined) bz = 0;
    return az == bz ? 0 : az < bz ? -1 : 1;
  });
  var groupIds = new Array(grouplist.length);
  for (var i = 0; i < grouplist.length; i++) {
    groupIds[i] = grouplist[i].id;
  }
  return groupIds;
};

/**
 * Update and redraw the graph.
 *
 * @returns {boolean}
 * @private
 */
LineGraph.prototype._updateGraph = function () {
  // reset the svg elements
  DOMutil.prepareElements(this.svgElements);
  if (this.props.width != 0 && this.itemsData != null) {
    var group, i;
    var groupRanges = {};
    var changeCalled = false;
    // this is the range of the SVG canvas
    var minDate = this.body.util.toGlobalTime(-this.body.domProps.root.width);
    var maxDate = this.body.util.toGlobalTime(2 * this.body.domProps.root.width);

    // getting group Ids
    var groupIds = this._getSortedGroupIds();
    if (groupIds.length > 0) {
      var groupsData = {};

      // fill groups data, this only loads the data we require based on the timewindow
      this._getRelevantData(groupIds, groupsData, minDate, maxDate);

      // apply sampling, if disabled, it will pass through this function.
      this._applySampling(groupIds, groupsData);

      // we transform the X coordinates to detect collisions
      for (i = 0; i < groupIds.length; i++) {
        this._convertXcoordinates(groupsData[groupIds[i]]);
      }

      // now all needed data has been collected we start the processing.
      this._getYRanges(groupIds, groupsData, groupRanges);

      // update the Y axis first, we use this data to draw at the correct Y points
      changeCalled = this._updateYAxis(groupIds, groupRanges);

      //  at changeCalled, abort this update cycle as the graph needs another update with new Width input from the Redraw container.
      //  Cleanup SVG elements on abort.
      if (changeCalled == true) {
        DOMutil.cleanupElements(this.svgElements);
        this.abortedGraphUpdate = true;
        return true;
      }
      this.abortedGraphUpdate = false;

      // With the yAxis scaled correctly, use this to get the Y values of the points.
      var below = undefined;
      for (i = 0; i < groupIds.length; i++) {
        group = this.groups[groupIds[i]];
        if (this.options.stack === true && this.options.style === 'line') {
          if (group.options.excludeFromStacking == undefined || !group.options.excludeFromStacking) {
            if (below != undefined) {
              this._stack(groupsData[group.id], groupsData[below.id]);
              if (group.options.shaded.enabled == true && group.options.shaded.orientation !== "group") {
                if (group.options.shaded.orientation == "top" && below.options.shaded.orientation !== "group") {
                  below.options.shaded.orientation = "group";
                  below.options.shaded.groupId = group.id;
                } else {
                  group.options.shaded.orientation = "group";
                  group.options.shaded.groupId = below.id;
                }
              }
            }
            below = group;
          }
        }
        this._convertYcoordinates(groupsData[groupIds[i]], group);
      }

      //Precalculate paths and draw shading if appropriate. This will make sure the shading is always behind any lines.
      var paths = {};
      for (i = 0; i < groupIds.length; i++) {
        group = this.groups[groupIds[i]];
        if (group.options.style === 'line' && group.options.shaded.enabled == true) {
          var dataset = groupsData[groupIds[i]];
          if (dataset == null || dataset.length == 0) {
            continue;
          }
          if (!paths.hasOwnProperty(groupIds[i])) {
            paths[groupIds[i]] = Lines.calcPath(dataset, group);
          }
          if (group.options.shaded.orientation === "group") {
            var subGroupId = group.options.shaded.groupId;
            if (groupIds.indexOf(subGroupId) === -1) {
              console.log(group.id + ": Unknown shading group target given:" + subGroupId);
              continue;
            }
            if (!paths.hasOwnProperty(subGroupId)) {
              paths[subGroupId] = Lines.calcPath(groupsData[subGroupId], this.groups[subGroupId]);
            }
            Lines.drawShading(paths[groupIds[i]], group, paths[subGroupId], this.framework);
          } else {
            Lines.drawShading(paths[groupIds[i]], group, undefined, this.framework);
          }
        }
      }

      // draw the groups, calculating paths if still necessary.
      Bars.draw(groupIds, groupsData, this.framework);
      for (i = 0; i < groupIds.length; i++) {
        group = this.groups[groupIds[i]];
        if (groupsData[groupIds[i]].length > 0) {
          switch (group.options.style) {
            case "line":
              if (!paths.hasOwnProperty(groupIds[i])) {
                paths[groupIds[i]] = Lines.calcPath(groupsData[groupIds[i]], group);
              }
              Lines.draw(paths[groupIds[i]], group, this.framework);
            // eslint-disable-line no-fallthrough
            case "point":
            // eslint-disable-line no-fallthrough
            case "points":
              if (group.options.style == "point" || group.options.style == "points" || group.options.drawPoints.enabled == true) {
                Points.draw(groupsData[groupIds[i]], group, this.framework);
              }
              break;
            case "bar":
            // bar needs to be drawn enmasse
            // eslint-disable-line no-fallthrough
            default:
            //do nothing...
          }
        }
      }
    }
  }

  // cleanup unused svg elements
  DOMutil.cleanupElements(this.svgElements);
  return false;
};

LineGraph.prototype._stack = function (data, subData) {
  var index, dx, dy, subPrevPoint, subNextPoint;
  index = 0;
  // for each data point we look for a matching on in the set below
  for (var j = 0; j < data.length; j++) {
    subPrevPoint = undefined;
    subNextPoint = undefined;
    // we look for time matches or a before-after point
    for (var k = index; k < subData.length; k++) {
      // if times match exactly
      if (subData[k].x === data[j].x) {
        subPrevPoint = subData[k];
        subNextPoint = subData[k];
        index = k;
        break;
      } else if (subData[k].x > data[j].x) {
        // overshoot
        subNextPoint = subData[k];
        if (k == 0) {
          subPrevPoint = subNextPoint;
        } else {
          subPrevPoint = subData[k - 1];
        }
        index = k;
        break;
      }
    }
    // in case the last data point has been used, we assume it stays like this.
    if (subNextPoint === undefined) {
      subPrevPoint = subData[subData.length - 1];
      subNextPoint = subData[subData.length - 1];
    }
    // linear interpolation
    dx = subNextPoint.x - subPrevPoint.x;
    dy = subNextPoint.y - subPrevPoint.y;
    if (dx == 0) {
      data[j].y = data[j].orginalY + subNextPoint.y;
    } else {
      data[j].y = data[j].orginalY + dy / dx * (data[j].x - subPrevPoint.x) + subPrevPoint.y; // ax + b where b is data[j].y
    }
  }
};

/**
 * first select and preprocess the data from the datasets.
 * the groups have their preselection of data, we now loop over this data to see
 * what data we need to draw. Sorted data is much faster.
 * more optimization is possible by doing the sampling before and using the binary search
 * to find the end date to determine the increment.
 *
 * @param {array}  groupIds
 * @param {object} groupsData
 * @param {date}   minDate
 * @param {date}   maxDate
 * @private
 */
LineGraph.prototype._getRelevantData = function (groupIds, groupsData, minDate, maxDate) {
  var group, i, j, item;
  if (groupIds.length > 0) {
    for (i = 0; i < groupIds.length; i++) {
      group = this.groups[groupIds[i]];
      var itemsData = group.getItems();
      // optimization for sorted data
      if (group.options.sort == true) {
        var dateComparator = function dateComparator(a, b) {
          return a.getTime() == b.getTime() ? 0 : a < b ? -1 : 1;
        };
        var first = Math.max(0, util.binarySearchValue(itemsData, minDate, 'x', 'before', dateComparator));
        var last = Math.min(itemsData.length, util.binarySearchValue(itemsData, maxDate, 'x', 'after', dateComparator) + 1);
        if (last <= 0) {
          last = itemsData.length;
        }
        var dataContainer = new Array(last - first);
        for (j = first; j < last; j++) {
          item = group.itemsData[j];
          dataContainer[j - first] = item;
        }
        groupsData[groupIds[i]] = dataContainer;
      } else {
        // If unsorted data, all data is relevant, just returning entire structure
        groupsData[groupIds[i]] = group.itemsData;
      }
    }
  }
};

/**
 *
 * @param {Array.<vis.GraphGroup.id>} groupIds
 * @param {vis.DataSet} groupsData
 * @private
 */
LineGraph.prototype._applySampling = function (groupIds, groupsData) {
  var group;
  if (groupIds.length > 0) {
    for (var i = 0; i < groupIds.length; i++) {
      group = this.groups[groupIds[i]];
      if (group.options.sampling == true) {
        var dataContainer = groupsData[groupIds[i]];
        if (dataContainer.length > 0) {
          var increment = 1;
          var amountOfPoints = dataContainer.length;

          // the global screen is used because changing the width of the yAxis may affect the increment, resulting in an endless loop
          // of width changing of the yAxis.
          //TODO: This assumes sorted data, but that's not guaranteed!
          var xDistance = this.body.util.toGlobalScreen(dataContainer[dataContainer.length - 1].x) - this.body.util.toGlobalScreen(dataContainer[0].x);
          var pointsPerPixel = amountOfPoints / xDistance;
          increment = Math.min(Math.ceil(0.2 * amountOfPoints), Math.max(1, Math.round(pointsPerPixel)));

          var sampledData = new Array(amountOfPoints);
          for (var j = 0; j < amountOfPoints; j += increment) {
            var idx = Math.round(j / increment);
            sampledData[idx] = dataContainer[j];
          }
          groupsData[groupIds[i]] = sampledData.splice(0, Math.round(amountOfPoints / increment));
        }
      }
    }
  }
};

/**
 *
 * @param {Array.<vis.GraphGroup.id>} groupIds
 * @param {vis.DataSet} groupsData
 * @param {object} groupRanges  | this is being filled here
 * @private
 */
LineGraph.prototype._getYRanges = function (groupIds, groupsData, groupRanges) {
  var groupData, group, i;
  var combinedDataLeft = [];
  var combinedDataRight = [];
  var options;
  if (groupIds.length > 0) {
    for (i = 0; i < groupIds.length; i++) {
      groupData = groupsData[groupIds[i]];
      options = this.groups[groupIds[i]].options;
      if (groupData.length > 0) {
        group = this.groups[groupIds[i]];
        // if bar graphs are stacked, their range need to be handled differently and accumulated over all groups.
        if (options.stack === true && options.style === 'bar') {
          if (options.yAxisOrientation === 'left') {
            combinedDataLeft = combinedDataLeft.concat(groupData);
          } else {
            combinedDataRight = combinedDataRight.concat(groupData);
          }
        } else {
          groupRanges[groupIds[i]] = group.getYRange(groupData, groupIds[i]);
        }
      }
    }

    // if bar graphs are stacked, their range need to be handled differently and accumulated over all groups.
    Bars.getStackedYRange(combinedDataLeft, groupRanges, groupIds, '__barStackLeft', 'left');
    Bars.getStackedYRange(combinedDataRight, groupRanges, groupIds, '__barStackRight', 'right');
  }
};

/**
 * this sets the Y ranges for the Y axis. It also determines which of the axis should be shown or hidden.
 * @param {Array.<vis.GraphGroup.id>} groupIds
 * @param {Object} groupRanges
 * @returns {boolean} resized
 * @private
 */
LineGraph.prototype._updateYAxis = function (groupIds, groupRanges) {
  var resized = false;
  var yAxisLeftUsed = false;
  var yAxisRightUsed = false;
  var minLeft = 1e9,
      minRight = 1e9,
      maxLeft = -1e9,
      maxRight = -1e9,
      minVal,
      maxVal;
  // if groups are present
  if (groupIds.length > 0) {
    // this is here to make sure that if there are no items in the axis but there are groups, that there is no infinite draw/redraw loop.
    for (var i = 0; i < groupIds.length; i++) {
      var group = this.groups[groupIds[i]];
      if (group && group.options.yAxisOrientation != 'right') {
        yAxisLeftUsed = true;
        minLeft = 1e9;
        maxLeft = -1e9;
      } else if (group && group.options.yAxisOrientation) {
        yAxisRightUsed = true;
        minRight = 1e9;
        maxRight = -1e9;
      }
    }

    // if there are items:
    for (i = 0; i < groupIds.length; i++) {
      if (groupRanges.hasOwnProperty(groupIds[i])) {
        if (groupRanges[groupIds[i]].ignore !== true) {
          minVal = groupRanges[groupIds[i]].min;
          maxVal = groupRanges[groupIds[i]].max;

          if (groupRanges[groupIds[i]].yAxisOrientation != 'right') {
            yAxisLeftUsed = true;
            minLeft = minLeft > minVal ? minVal : minLeft;
            maxLeft = maxLeft < maxVal ? maxVal : maxLeft;
          } else {
            yAxisRightUsed = true;
            minRight = minRight > minVal ? minVal : minRight;
            maxRight = maxRight < maxVal ? maxVal : maxRight;
          }
        }
      }
    }

    if (yAxisLeftUsed == true) {
      this.yAxisLeft.setRange(minLeft, maxLeft);
    }
    if (yAxisRightUsed == true) {
      this.yAxisRight.setRange(minRight, maxRight);
    }
  }
  resized = this._toggleAxisVisiblity(yAxisLeftUsed, this.yAxisLeft) || resized;
  resized = this._toggleAxisVisiblity(yAxisRightUsed, this.yAxisRight) || resized;

  if (yAxisRightUsed == true && yAxisLeftUsed == true) {
    this.yAxisLeft.drawIcons = true;
    this.yAxisRight.drawIcons = true;
  } else {
    this.yAxisLeft.drawIcons = false;
    this.yAxisRight.drawIcons = false;
  }
  this.yAxisRight.master = !yAxisLeftUsed;
  this.yAxisRight.masterAxis = this.yAxisLeft;

  if (this.yAxisRight.master == false) {
    if (yAxisRightUsed == true) {
      this.yAxisLeft.lineOffset = this.yAxisRight.width;
    } else {
      this.yAxisLeft.lineOffset = 0;
    }

    resized = this.yAxisLeft.redraw() || resized;
    resized = this.yAxisRight.redraw() || resized;
  } else {
    resized = this.yAxisRight.redraw() || resized;
  }

  // clean the accumulated lists
  var tempGroups = ['__barStackLeft', '__barStackRight', '__lineStackLeft', '__lineStackRight'];
  for (i = 0; i < tempGroups.length; i++) {
    if (groupIds.indexOf(tempGroups[i]) != -1) {
      groupIds.splice(groupIds.indexOf(tempGroups[i]), 1);
    }
  }

  return resized;
};

/**
 * This shows or hides the Y axis if needed. If there is a change, the changed event is emitted by the updateYAxis function
 *
 * @param {boolean} axisUsed
 * @param {vis.DataAxis}  axis
 * @returns {boolean}
 * @private
 */
LineGraph.prototype._toggleAxisVisiblity = function (axisUsed, axis) {
  var changed = false;
  if (axisUsed == false) {
    if (axis.dom.frame.parentNode && axis.hidden == false) {
      axis.hide();
      changed = true;
    }
  } else {
    if (!axis.dom.frame.parentNode && axis.hidden == true) {
      axis.show();
      changed = true;
    }
  }
  return changed;
};

/**
 * This uses the DataAxis object to generate the correct X coordinate on the SVG window. It uses the
 * util function toScreen to get the x coordinate from the timestamp. It also pre-filters the data and get the minMax ranges for
 * the yAxis.
 *
 * @param {Array.<Object>} datapoints
 * @private
 */
LineGraph.prototype._convertXcoordinates = function (datapoints) {
  var toScreen = this.body.util.toScreen;
  for (var i = 0; i < datapoints.length; i++) {
    datapoints[i].screen_x = toScreen(datapoints[i].x) + this.props.width;
    datapoints[i].screen_y = datapoints[i].y; //starting point for range calculations
    if (datapoints[i].end != undefined) {
      datapoints[i].screen_end = toScreen(datapoints[i].end) + this.props.width;
    } else {
      datapoints[i].screen_end = undefined;
    }
  }
};

/**
 * This uses the DataAxis object to generate the correct X coordinate on the SVG window. It uses the
 * util function toScreen to get the x coordinate from the timestamp. It also pre-filters the data and get the minMax ranges for
 * the yAxis.
 *
 * @param {Array.<Object>} datapoints
 * @param {vis.GraphGroup} group
 * @private
 */
LineGraph.prototype._convertYcoordinates = function (datapoints, group) {
  var axis = this.yAxisLeft;
  var svgHeight = Number(this.svg.style.height.replace('px', ''));
  if (group.options.yAxisOrientation == 'right') {
    axis = this.yAxisRight;
  }
  for (var i = 0; i < datapoints.length; i++) {
    datapoints[i].screen_y = Math.round(axis.convertValue(datapoints[i].y));
  }
  group.setZeroPosition(Math.min(svgHeight, axis.convertValue(0)));
};

module.exports = LineGraph;

/***/ }),
/* 107 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _keys = __webpack_require__(8);

var _keys2 = _interopRequireDefault(_keys);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var DOMutil = __webpack_require__(14);
var Component = __webpack_require__(16);
var DataScale = __webpack_require__(108);
/**
 * A horizontal time axis
 * @param {Object} body
 * @param {Object} [options]        See DataAxis.setOptions for the available
 *                                  options.
 * @param {SVGElement} svg
 * @param {vis.LineGraph.options} linegraphOptions
 * @constructor DataAxis
 * @extends Component
 */
function DataAxis(body, options, svg, linegraphOptions) {
  this.id = util.randomUUID();
  this.body = body;

  this.defaultOptions = {
    orientation: 'left', // supported: 'left', 'right'
    showMinorLabels: true,
    showMajorLabels: true,
    icons: false,
    majorLinesOffset: 7,
    minorLinesOffset: 4,
    labelOffsetX: 10,
    labelOffsetY: 2,
    iconWidth: 20,
    width: '40px',
    visible: true,
    alignZeros: true,
    left: {
      range: { min: undefined, max: undefined },
      format: function format(value) {
        return '' + parseFloat(value.toPrecision(3));
      },
      title: { text: undefined, style: undefined }
    },
    right: {
      range: { min: undefined, max: undefined },
      format: function format(value) {
        return '' + parseFloat(value.toPrecision(3));
      },
      title: { text: undefined, style: undefined }
    }
  };

  this.linegraphOptions = linegraphOptions;
  this.linegraphSVG = svg;
  this.props = {};
  this.DOMelements = { // dynamic elements
    lines: {},
    labels: {},
    title: {}
  };

  this.dom = {};
  this.scale = undefined;
  this.range = { start: 0, end: 0 };

  this.options = util.extend({}, this.defaultOptions);
  this.conversionFactor = 1;

  this.setOptions(options);
  this.width = Number(('' + this.options.width).replace("px", ""));
  this.minWidth = this.width;
  this.height = this.linegraphSVG.getBoundingClientRect().height;
  this.hidden = false;

  this.stepPixels = 25;
  this.zeroCrossing = -1;
  this.amountOfSteps = -1;

  this.lineOffset = 0;
  this.master = true;
  this.masterAxis = null;
  this.svgElements = {};
  this.iconsRemoved = false;

  this.groups = {};
  this.amountOfGroups = 0;

  // create the HTML DOM
  this._create();
  this.framework = { svg: this.svg, svgElements: this.svgElements, options: this.options, groups: this.groups };

  var me = this;
  this.body.emitter.on("verticalDrag", function () {
    me.dom.lineContainer.style.top = me.body.domProps.scrollTop + 'px';
  });
}

DataAxis.prototype = new Component();

DataAxis.prototype.addGroup = function (label, graphOptions) {
  if (!this.groups.hasOwnProperty(label)) {
    this.groups[label] = graphOptions;
  }
  this.amountOfGroups += 1;
};

DataAxis.prototype.updateGroup = function (label, graphOptions) {
  if (!this.groups.hasOwnProperty(label)) {
    this.amountOfGroups += 1;
  }
  this.groups[label] = graphOptions;
};

DataAxis.prototype.removeGroup = function (label) {
  if (this.groups.hasOwnProperty(label)) {
    delete this.groups[label];
    this.amountOfGroups -= 1;
  }
};

DataAxis.prototype.setOptions = function (options) {
  if (options) {
    var redraw = false;
    if (this.options.orientation != options.orientation && options.orientation !== undefined) {
      redraw = true;
    }
    var fields = ['orientation', 'showMinorLabels', 'showMajorLabels', 'icons', 'majorLinesOffset', 'minorLinesOffset', 'labelOffsetX', 'labelOffsetY', 'iconWidth', 'width', 'visible', 'left', 'right', 'alignZeros'];
    util.selectiveDeepExtend(fields, this.options, options);

    this.minWidth = Number(('' + this.options.width).replace("px", ""));
    if (redraw === true && this.dom.frame) {
      this.hide();
      this.show();
    }
  }
};

/**
 * Create the HTML DOM for the DataAxis
 */
DataAxis.prototype._create = function () {
  this.dom.frame = document.createElement('div');
  this.dom.frame.style.width = this.options.width;
  this.dom.frame.style.height = this.height;

  this.dom.lineContainer = document.createElement('div');
  this.dom.lineContainer.style.width = '100%';
  this.dom.lineContainer.style.height = this.height;
  this.dom.lineContainer.style.position = 'relative';

  // create svg element for graph drawing.
  this.svg = document.createElementNS('http://www.w3.org/2000/svg', "svg");
  this.svg.style.position = "absolute";
  this.svg.style.top = '0px';
  this.svg.style.height = '100%';
  this.svg.style.width = '100%';
  this.svg.style.display = "block";
  this.dom.frame.appendChild(this.svg);
};

DataAxis.prototype._redrawGroupIcons = function () {
  DOMutil.prepareElements(this.svgElements);

  var x;
  var iconWidth = this.options.iconWidth;
  var iconHeight = 15;
  var iconOffset = 4;
  var y = iconOffset + 0.5 * iconHeight;

  if (this.options.orientation === 'left') {
    x = iconOffset;
  } else {
    x = this.width - iconWidth - iconOffset;
  }

  var groupArray = (0, _keys2['default'])(this.groups);
  groupArray.sort(function (a, b) {
    return a < b ? -1 : 1;
  });

  for (var i = 0; i < groupArray.length; i++) {
    var groupId = groupArray[i];
    if (this.groups[groupId].visible === true && (this.linegraphOptions.visibility[groupId] === undefined || this.linegraphOptions.visibility[groupId] === true)) {
      this.groups[groupId].getLegend(iconWidth, iconHeight, this.framework, x, y);
      y += iconHeight + iconOffset;
    }
  }

  DOMutil.cleanupElements(this.svgElements);
  this.iconsRemoved = false;
};

DataAxis.prototype._cleanupIcons = function () {
  if (this.iconsRemoved === false) {
    DOMutil.prepareElements(this.svgElements);
    DOMutil.cleanupElements(this.svgElements);
    this.iconsRemoved = true;
  }
};

/**
 * Create the HTML DOM for the DataAxis
 */
DataAxis.prototype.show = function () {
  this.hidden = false;
  if (!this.dom.frame.parentNode) {
    if (this.options.orientation === 'left') {
      this.body.dom.left.appendChild(this.dom.frame);
    } else {
      this.body.dom.right.appendChild(this.dom.frame);
    }
  }

  if (!this.dom.lineContainer.parentNode) {
    this.body.dom.backgroundHorizontal.appendChild(this.dom.lineContainer);
  }
};

/**
 * Create the HTML DOM for the DataAxis
 */
DataAxis.prototype.hide = function () {
  this.hidden = true;
  if (this.dom.frame.parentNode) {
    this.dom.frame.parentNode.removeChild(this.dom.frame);
  }

  if (this.dom.lineContainer.parentNode) {
    this.dom.lineContainer.parentNode.removeChild(this.dom.lineContainer);
  }
};

/**
 * Set a range (start and end)
 * @param {number} start
 * @param {number} end
 */
DataAxis.prototype.setRange = function (start, end) {
  this.range.start = start;
  this.range.end = end;
};

/**
 * Repaint the component
 * @return {boolean} Returns true if the component is resized
 */
DataAxis.prototype.redraw = function () {
  var resized = false;
  var activeGroups = 0;

  // Make sure the line container adheres to the vertical scrolling.
  this.dom.lineContainer.style.top = this.body.domProps.scrollTop + 'px';

  for (var groupId in this.groups) {
    if (this.groups.hasOwnProperty(groupId)) {
      if (this.groups[groupId].visible === true && (this.linegraphOptions.visibility[groupId] === undefined || this.linegraphOptions.visibility[groupId] === true)) {
        activeGroups++;
      }
    }
  }
  if (this.amountOfGroups === 0 || activeGroups === 0) {
    this.hide();
  } else {
    this.show();
    this.height = Number(this.linegraphSVG.style.height.replace("px", ""));

    // svg offsetheight did not work in firefox and explorer...
    this.dom.lineContainer.style.height = this.height + 'px';
    this.width = this.options.visible === true ? Number(('' + this.options.width).replace("px", "")) : 0;

    var props = this.props;
    var frame = this.dom.frame;

    // update classname
    frame.className = 'vis-data-axis';

    // calculate character width and height
    this._calculateCharSize();

    var orientation = this.options.orientation;
    var showMinorLabels = this.options.showMinorLabels;
    var showMajorLabels = this.options.showMajorLabels;

    // determine the width and height of the elements for the axis
    props.minorLabelHeight = showMinorLabels ? props.minorCharHeight : 0;
    props.majorLabelHeight = showMajorLabels ? props.majorCharHeight : 0;

    props.minorLineWidth = this.body.dom.backgroundHorizontal.offsetWidth - this.lineOffset - this.width + 2 * this.options.minorLinesOffset;
    props.minorLineHeight = 1;
    props.majorLineWidth = this.body.dom.backgroundHorizontal.offsetWidth - this.lineOffset - this.width + 2 * this.options.majorLinesOffset;
    props.majorLineHeight = 1;

    //  take frame offline while updating (is almost twice as fast)
    if (orientation === 'left') {
      frame.style.top = '0';
      frame.style.left = '0';
      frame.style.bottom = '';
      frame.style.width = this.width + 'px';
      frame.style.height = this.height + "px";
      this.props.width = this.body.domProps.left.width;
      this.props.height = this.body.domProps.left.height;
    } else {
      // right
      frame.style.top = '';
      frame.style.bottom = '0';
      frame.style.left = '0';
      frame.style.width = this.width + 'px';
      frame.style.height = this.height + "px";
      this.props.width = this.body.domProps.right.width;
      this.props.height = this.body.domProps.right.height;
    }

    resized = this._redrawLabels();
    resized = this._isResized() || resized;

    if (this.options.icons === true) {
      this._redrawGroupIcons();
    } else {
      this._cleanupIcons();
    }

    this._redrawTitle(orientation);
  }
  return resized;
};

/**
 * Repaint major and minor text labels and vertical grid lines
 *
 * @returns {boolean}
 * @private
 */
DataAxis.prototype._redrawLabels = function () {
  var _this = this;

  var resized = false;
  DOMutil.prepareElements(this.DOMelements.lines);
  DOMutil.prepareElements(this.DOMelements.labels);
  var orientation = this.options['orientation'];
  var customRange = this.options[orientation].range != undefined ? this.options[orientation].range : {};

  //Override range with manual options:
  var autoScaleEnd = true;
  if (customRange.max != undefined) {
    this.range.end = customRange.max;
    autoScaleEnd = false;
  }
  var autoScaleStart = true;
  if (customRange.min != undefined) {
    this.range.start = customRange.min;
    autoScaleStart = false;
  }

  this.scale = new DataScale(this.range.start, this.range.end, autoScaleStart, autoScaleEnd, this.dom.frame.offsetHeight, this.props.majorCharHeight, this.options.alignZeros, this.options[orientation].format);

  if (this.master === false && this.masterAxis != undefined) {
    this.scale.followScale(this.masterAxis.scale);
  }

  //Is updated in side-effect of _redrawLabel():
  this.maxLabelSize = 0;

  var lines = this.scale.getLines();
  lines.forEach(function (line) {
    var y = line.y;
    var isMajor = line.major;
    if (_this.options['showMinorLabels'] && isMajor === false) {
      _this._redrawLabel(y - 2, line.val, orientation, 'vis-y-axis vis-minor', _this.props.minorCharHeight);
    }
    if (isMajor) {
      if (y >= 0) {
        _this._redrawLabel(y - 2, line.val, orientation, 'vis-y-axis vis-major', _this.props.majorCharHeight);
      }
    }
    if (_this.master === true) {
      if (isMajor) {
        _this._redrawLine(y, orientation, 'vis-grid vis-horizontal vis-major', _this.options.majorLinesOffset, _this.props.majorLineWidth);
      } else {
        _this._redrawLine(y, orientation, 'vis-grid vis-horizontal vis-minor', _this.options.minorLinesOffset, _this.props.minorLineWidth);
      }
    }
  });

  // Note that title is rotated, so we're using the height, not width!
  var titleWidth = 0;
  if (this.options[orientation].title !== undefined && this.options[orientation].title.text !== undefined) {
    titleWidth = this.props.titleCharHeight;
  }
  var offset = this.options.icons === true ? Math.max(this.options.iconWidth, titleWidth) + this.options.labelOffsetX + 15 : titleWidth + this.options.labelOffsetX + 15;

  // this will resize the yAxis to accommodate the labels.
  if (this.maxLabelSize > this.width - offset && this.options.visible === true) {
    this.width = this.maxLabelSize + offset;
    this.options.width = this.width + "px";
    DOMutil.cleanupElements(this.DOMelements.lines);
    DOMutil.cleanupElements(this.DOMelements.labels);
    this.redraw();
    resized = true;
  }
  // this will resize the yAxis if it is too big for the labels.
  else if (this.maxLabelSize < this.width - offset && this.options.visible === true && this.width > this.minWidth) {
      this.width = Math.max(this.minWidth, this.maxLabelSize + offset);
      this.options.width = this.width + "px";
      DOMutil.cleanupElements(this.DOMelements.lines);
      DOMutil.cleanupElements(this.DOMelements.labels);
      this.redraw();
      resized = true;
    } else {
      DOMutil.cleanupElements(this.DOMelements.lines);
      DOMutil.cleanupElements(this.DOMelements.labels);
      resized = false;
    }

  return resized;
};

DataAxis.prototype.convertValue = function (value) {
  return this.scale.convertValue(value);
};

DataAxis.prototype.screenToValue = function (x) {
  return this.scale.screenToValue(x);
};

/**
 * Create a label for the axis at position x
 *
 * @param {number} y
 * @param {string} text
 * @param {'top'|'right'|'bottom'|'left'} orientation
 * @param {string} className
 * @param {number} characterHeight
 * @private
 */
DataAxis.prototype._redrawLabel = function (y, text, orientation, className, characterHeight) {
  // reuse redundant label
  var label = DOMutil.getDOMElement('div', this.DOMelements.labels, this.dom.frame); //this.dom.redundant.labels.shift();
  label.className = className;
  label.innerHTML = text;
  if (orientation === 'left') {
    label.style.left = '-' + this.options.labelOffsetX + 'px';
    label.style.textAlign = "right";
  } else {
    label.style.right = '-' + this.options.labelOffsetX + 'px';
    label.style.textAlign = "left";
  }

  label.style.top = y - 0.5 * characterHeight + this.options.labelOffsetY + 'px';

  text += '';

  var largestWidth = Math.max(this.props.majorCharWidth, this.props.minorCharWidth);
  if (this.maxLabelSize < text.length * largestWidth) {
    this.maxLabelSize = text.length * largestWidth;
  }
};

/**
 * Create a minor line for the axis at position y
 * @param {number} y
 * @param {'top'|'right'|'bottom'|'left'} orientation
 * @param {string} className
 * @param {number} offset
 * @param {number} width
 */
DataAxis.prototype._redrawLine = function (y, orientation, className, offset, width) {
  if (this.master === true) {
    var line = DOMutil.getDOMElement('div', this.DOMelements.lines, this.dom.lineContainer); //this.dom.redundant.lines.shift();
    line.className = className;
    line.innerHTML = '';

    if (orientation === 'left') {
      line.style.left = this.width - offset + 'px';
    } else {
      line.style.right = this.width - offset + 'px';
    }

    line.style.width = width + 'px';
    line.style.top = y + 'px';
  }
};

/**
 * Create a title for the axis
 * @private
 * @param {'top'|'right'|'bottom'|'left'} orientation
 */
DataAxis.prototype._redrawTitle = function (orientation) {
  DOMutil.prepareElements(this.DOMelements.title);

  // Check if the title is defined for this axes
  if (this.options[orientation].title !== undefined && this.options[orientation].title.text !== undefined) {
    var title = DOMutil.getDOMElement('div', this.DOMelements.title, this.dom.frame);
    title.className = 'vis-y-axis vis-title vis-' + orientation;
    title.innerHTML = this.options[orientation].title.text;

    // Add style - if provided
    if (this.options[orientation].title.style !== undefined) {
      util.addCssText(title, this.options[orientation].title.style);
    }

    if (orientation === 'left') {
      title.style.left = this.props.titleCharHeight + 'px';
    } else {
      title.style.right = this.props.titleCharHeight + 'px';
    }

    title.style.width = this.height + 'px';
  }

  // we need to clean up in case we did not use all elements.
  DOMutil.cleanupElements(this.DOMelements.title);
};

/**
 * Determine the size of text on the axis (both major and minor axis).
 * The size is calculated only once and then cached in this.props.
 * @private
 */
DataAxis.prototype._calculateCharSize = function () {
  // determine the char width and height on the minor axis
  if (!('minorCharHeight' in this.props)) {
    var textMinor = document.createTextNode('0');
    var measureCharMinor = document.createElement('div');
    measureCharMinor.className = 'vis-y-axis vis-minor vis-measure';
    measureCharMinor.appendChild(textMinor);
    this.dom.frame.appendChild(measureCharMinor);

    this.props.minorCharHeight = measureCharMinor.clientHeight;
    this.props.minorCharWidth = measureCharMinor.clientWidth;

    this.dom.frame.removeChild(measureCharMinor);
  }

  if (!('majorCharHeight' in this.props)) {
    var textMajor = document.createTextNode('0');
    var measureCharMajor = document.createElement('div');
    measureCharMajor.className = 'vis-y-axis vis-major vis-measure';
    measureCharMajor.appendChild(textMajor);
    this.dom.frame.appendChild(measureCharMajor);

    this.props.majorCharHeight = measureCharMajor.clientHeight;
    this.props.majorCharWidth = measureCharMajor.clientWidth;

    this.dom.frame.removeChild(measureCharMajor);
  }

  if (!('titleCharHeight' in this.props)) {
    var textTitle = document.createTextNode('0');
    var measureCharTitle = document.createElement('div');
    measureCharTitle.className = 'vis-y-axis vis-title vis-measure';
    measureCharTitle.appendChild(textTitle);
    this.dom.frame.appendChild(measureCharTitle);

    this.props.titleCharHeight = measureCharTitle.clientHeight;
    this.props.titleCharWidth = measureCharTitle.clientWidth;

    this.dom.frame.removeChild(measureCharTitle);
  }
};

module.exports = DataAxis;

/***/ }),
/* 108 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 *
 * @param {number} start
 * @param {number} end
 * @param {boolean} autoScaleStart
 * @param {boolean} autoScaleEnd
 * @param {number} containerHeight
 * @param {number} majorCharHeight
 * @param {boolean} zeroAlign
 * @param {function} formattingFunction
 * @constructor DataScale
 */
function DataScale(start, end, autoScaleStart, autoScaleEnd, containerHeight, majorCharHeight) {
  var zeroAlign = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : false;
  var formattingFunction = arguments.length > 7 && arguments[7] !== undefined ? arguments[7] : false;

  this.majorSteps = [1, 2, 5, 10];
  this.minorSteps = [0.25, 0.5, 1, 2];
  this.customLines = null;

  this.containerHeight = containerHeight;
  this.majorCharHeight = majorCharHeight;
  this._start = start;
  this._end = end;

  this.scale = 1;
  this.minorStepIdx = -1;
  this.magnitudefactor = 1;
  this.determineScale();

  this.zeroAlign = zeroAlign;
  this.autoScaleStart = autoScaleStart;
  this.autoScaleEnd = autoScaleEnd;

  this.formattingFunction = formattingFunction;

  if (autoScaleStart || autoScaleEnd) {
    var me = this;
    var roundToMinor = function roundToMinor(value) {
      var rounded = value - value % (me.magnitudefactor * me.minorSteps[me.minorStepIdx]);
      if (value % (me.magnitudefactor * me.minorSteps[me.minorStepIdx]) > 0.5 * (me.magnitudefactor * me.minorSteps[me.minorStepIdx])) {
        return rounded + me.magnitudefactor * me.minorSteps[me.minorStepIdx];
      } else {
        return rounded;
      }
    };
    if (autoScaleStart) {
      this._start -= this.magnitudefactor * 2 * this.minorSteps[this.minorStepIdx];
      this._start = roundToMinor(this._start);
    }

    if (autoScaleEnd) {
      this._end += this.magnitudefactor * this.minorSteps[this.minorStepIdx];
      this._end = roundToMinor(this._end);
    }
    this.determineScale();
  }
}

DataScale.prototype.setCharHeight = function (majorCharHeight) {
  this.majorCharHeight = majorCharHeight;
};

DataScale.prototype.setHeight = function (containerHeight) {
  this.containerHeight = containerHeight;
};

DataScale.prototype.determineScale = function () {
  var range = this._end - this._start;
  this.scale = this.containerHeight / range;
  var minimumStepValue = this.majorCharHeight / this.scale;
  var orderOfMagnitude = range > 0 ? Math.round(Math.log(range) / Math.LN10) : 0;

  this.minorStepIdx = -1;
  this.magnitudefactor = Math.pow(10, orderOfMagnitude);

  var start = 0;
  if (orderOfMagnitude < 0) {
    start = orderOfMagnitude;
  }

  var solutionFound = false;
  for (var l = start; Math.abs(l) <= Math.abs(orderOfMagnitude); l++) {
    this.magnitudefactor = Math.pow(10, l);
    for (var j = 0; j < this.minorSteps.length; j++) {
      var stepSize = this.magnitudefactor * this.minorSteps[j];
      if (stepSize >= minimumStepValue) {
        solutionFound = true;
        this.minorStepIdx = j;
        break;
      }
    }
    if (solutionFound === true) {
      break;
    }
  }
};

DataScale.prototype.is_major = function (value) {
  return value % (this.magnitudefactor * this.majorSteps[this.minorStepIdx]) === 0;
};

DataScale.prototype.getStep = function () {
  return this.magnitudefactor * this.minorSteps[this.minorStepIdx];
};

DataScale.prototype.getFirstMajor = function () {
  var majorStep = this.magnitudefactor * this.majorSteps[this.minorStepIdx];
  return this.convertValue(this._start + (majorStep - this._start % majorStep) % majorStep);
};

DataScale.prototype.formatValue = function (current) {
  var returnValue = current.toPrecision(5);
  if (typeof this.formattingFunction === 'function') {
    returnValue = this.formattingFunction(current);
  }

  if (typeof returnValue === 'number') {
    return '' + returnValue;
  } else if (typeof returnValue === 'string') {
    return returnValue;
  } else {
    return current.toPrecision(5);
  }
};

DataScale.prototype.getLines = function () {
  var lines = [];
  var step = this.getStep();
  var bottomOffset = (step - this._start % step) % step;
  for (var i = this._start + bottomOffset; this._end - i > 0.00001; i += step) {
    if (i != this._start) {
      //Skip the bottom line
      lines.push({ major: this.is_major(i), y: this.convertValue(i), val: this.formatValue(i) });
    }
  }
  return lines;
};

DataScale.prototype.followScale = function (other) {
  var oldStepIdx = this.minorStepIdx;
  var oldStart = this._start;
  var oldEnd = this._end;

  var me = this;
  var increaseMagnitude = function increaseMagnitude() {
    me.magnitudefactor *= 2;
  };
  var decreaseMagnitude = function decreaseMagnitude() {
    me.magnitudefactor /= 2;
  };

  if (other.minorStepIdx <= 1 && this.minorStepIdx <= 1 || other.minorStepIdx > 1 && this.minorStepIdx > 1) {
    //easy, no need to change stepIdx nor multiplication factor
  } else if (other.minorStepIdx < this.minorStepIdx) {
    //I'm 5, they are 4 per major.
    this.minorStepIdx = 1;
    if (oldStepIdx == 2) {
      increaseMagnitude();
    } else {
      increaseMagnitude();
      increaseMagnitude();
    }
  } else {
    //I'm 4, they are 5 per major
    this.minorStepIdx = 2;
    if (oldStepIdx == 1) {
      decreaseMagnitude();
    } else {
      decreaseMagnitude();
      decreaseMagnitude();
    }
  }

  //Get masters stats:
  var otherZero = other.convertValue(0);
  var otherStep = other.getStep() * other.scale;

  var done = false;
  var count = 0;
  //Loop until magnitude is correct for given constrains.
  while (!done && count++ < 5) {

    //Get my stats:
    this.scale = otherStep / (this.minorSteps[this.minorStepIdx] * this.magnitudefactor);
    var newRange = this.containerHeight / this.scale;

    //For the case the magnitudefactor has changed:
    this._start = oldStart;
    this._end = this._start + newRange;

    var myOriginalZero = this._end * this.scale;
    var majorStep = this.magnitudefactor * this.majorSteps[this.minorStepIdx];
    var majorOffset = this.getFirstMajor() - other.getFirstMajor();

    if (this.zeroAlign) {
      var zeroOffset = otherZero - myOriginalZero;
      this._end += zeroOffset / this.scale;
      this._start = this._end - newRange;
    } else {
      if (!this.autoScaleStart) {
        this._start += majorStep - majorOffset / this.scale;
        this._end = this._start + newRange;
      } else {
        this._start -= majorOffset / this.scale;
        this._end = this._start + newRange;
      }
    }
    if (!this.autoScaleEnd && this._end > oldEnd + 0.00001) {
      //Need to decrease magnitude to prevent scale overshoot! (end)
      decreaseMagnitude();
      done = false;
      continue;
    }
    if (!this.autoScaleStart && this._start < oldStart - 0.00001) {
      if (this.zeroAlign && oldStart >= 0) {
        console.warn("Can't adhere to given 'min' range, due to zeroalign");
      } else {
        //Need to decrease magnitude to prevent scale overshoot! (start)
        decreaseMagnitude();
        done = false;
        continue;
      }
    }
    if (this.autoScaleStart && this.autoScaleEnd && newRange < oldEnd - oldStart) {
      increaseMagnitude();
      done = false;
      continue;
    }
    done = true;
  }
};

DataScale.prototype.convertValue = function (value) {
  return this.containerHeight - (value - this._start) * this.scale;
};

DataScale.prototype.screenToValue = function (pixels) {
  return (this.containerHeight - pixels) / this.scale + this._start;
};

module.exports = DataScale;

/***/ }),
/* 109 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var Bars = __webpack_require__(110);
var Lines = __webpack_require__(111);
var Points = __webpack_require__(72);

/**
 * /**
 * @param {object} group            | the object of the group from the dataset
 * @param {string} groupId          | ID of the group
 * @param {object} options          | the default options
 * @param {array} groupsUsingDefaultStyles  | this array has one entree.
 *                                            It is passed as an array so it is passed by reference.
 *                                            It enumerates through the default styles
 * @constructor GraphGroup
 */
function GraphGroup(group, groupId, options, groupsUsingDefaultStyles) {
  this.id = groupId;
  var fields = ['sampling', 'style', 'sort', 'yAxisOrientation', 'barChart', 'drawPoints', 'shaded', 'interpolation', 'zIndex', 'excludeFromStacking', 'excludeFromLegend'];
  this.options = util.selectiveBridgeObject(fields, options);
  this.usingDefaultStyle = group.className === undefined;
  this.groupsUsingDefaultStyles = groupsUsingDefaultStyles;
  this.zeroPosition = 0;
  this.update(group);
  if (this.usingDefaultStyle == true) {
    this.groupsUsingDefaultStyles[0] += 1;
  }
  this.itemsData = [];
  this.visible = group.visible === undefined ? true : group.visible;
}

/**
 * this loads a reference to all items in this group into this group.
 * @param {array} items
 */
GraphGroup.prototype.setItems = function (items) {
  if (items != null) {
    this.itemsData = items;
    if (this.options.sort == true) {
      util.insertSort(this.itemsData, function (a, b) {
        return a.x > b.x ? 1 : -1;
      });
    }
  } else {
    this.itemsData = [];
  }
};

GraphGroup.prototype.getItems = function () {
  return this.itemsData;
};

/**
 * this is used for barcharts and shading, this way, we only have to calculate it once.
 * @param {number} pos
 */
GraphGroup.prototype.setZeroPosition = function (pos) {
  this.zeroPosition = pos;
};

/**
 * set the options of the graph group over the default options.
 * @param {Object} options
 */
GraphGroup.prototype.setOptions = function (options) {
  if (options !== undefined) {
    var fields = ['sampling', 'style', 'sort', 'yAxisOrientation', 'barChart', 'zIndex', 'excludeFromStacking', 'excludeFromLegend'];
    util.selectiveDeepExtend(fields, this.options, options);

    // if the group's drawPoints is a function delegate the callback to the onRender property
    if (typeof options.drawPoints == 'function') {
      options.drawPoints = {
        onRender: options.drawPoints
      };
    }

    util.mergeOptions(this.options, options, 'interpolation');
    util.mergeOptions(this.options, options, 'drawPoints');
    util.mergeOptions(this.options, options, 'shaded');

    if (options.interpolation) {
      if ((0, _typeof3['default'])(options.interpolation) == 'object') {
        if (options.interpolation.parametrization) {
          if (options.interpolation.parametrization == 'uniform') {
            this.options.interpolation.alpha = 0;
          } else if (options.interpolation.parametrization == 'chordal') {
            this.options.interpolation.alpha = 1.0;
          } else {
            this.options.interpolation.parametrization = 'centripetal';
            this.options.interpolation.alpha = 0.5;
          }
        }
      }
    }
  }
};

/**
 * this updates the current group class with the latest group dataset entree, used in _updateGroup in linegraph
 * @param {vis.Group} group
 */
GraphGroup.prototype.update = function (group) {
  this.group = group;
  this.content = group.content || 'graph';
  this.className = group.className || this.className || 'vis-graph-group' + this.groupsUsingDefaultStyles[0] % 10;
  this.visible = group.visible === undefined ? true : group.visible;
  this.style = group.style;
  this.setOptions(group.options);
};

/**
 * return the legend entree for this group.
 *
 * @param {number} iconWidth
 * @param {number} iconHeight
 * @param {{svg: (*|Element), svgElements: Object, options: Object, groups: Array.<Object>}} framework
 * @param {number} x
 * @param {number} y
 * @returns {{icon: (*|Element), label: (*|string), orientation: *}}
 */
GraphGroup.prototype.getLegend = function (iconWidth, iconHeight, framework, x, y) {
  if (framework == undefined || framework == null) {
    var svg = document.createElementNS('http://www.w3.org/2000/svg', "svg");
    framework = { svg: svg, svgElements: {}, options: this.options, groups: [this] };
  }
  if (x == undefined || x == null) {
    x = 0;
  }
  if (y == undefined || y == null) {
    y = 0.5 * iconHeight;
  }
  switch (this.options.style) {
    case "line":
      Lines.drawIcon(this, x, y, iconWidth, iconHeight, framework);
      break;
    case "points": //explicit no break
    case "point":
      Points.drawIcon(this, x, y, iconWidth, iconHeight, framework);
      break;
    case "bar":
      Bars.drawIcon(this, x, y, iconWidth, iconHeight, framework);
      break;
  }
  return { icon: framework.svg, label: this.content, orientation: this.options.yAxisOrientation };
};

GraphGroup.prototype.getYRange = function (groupData) {
  var yMin = groupData[0].y;
  var yMax = groupData[0].y;
  for (var j = 0; j < groupData.length; j++) {
    yMin = yMin > groupData[j].y ? groupData[j].y : yMin;
    yMax = yMax < groupData[j].y ? groupData[j].y : yMax;
  }
  return { min: yMin, max: yMax, yAxisOrientation: this.options.yAxisOrientation };
};

module.exports = GraphGroup;

/***/ }),
/* 110 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var DOMutil = __webpack_require__(14);
var Points = __webpack_require__(72);

/**
 *
 * @param {vis.GraphGroup.id} groupId
 * @param {Object} options   // TODO: Describe options
 * @constructor Bargraph
 */
function Bargraph(groupId, options) {// eslint-disable-line no-unused-vars
}

Bargraph.drawIcon = function (group, x, y, iconWidth, iconHeight, framework) {
  var fillHeight = iconHeight * 0.5;
  var outline = DOMutil.getSVGElement("rect", framework.svgElements, framework.svg);
  outline.setAttributeNS(null, "x", x);
  outline.setAttributeNS(null, "y", y - fillHeight);
  outline.setAttributeNS(null, "width", iconWidth);
  outline.setAttributeNS(null, "height", 2 * fillHeight);
  outline.setAttributeNS(null, "class", "vis-outline");

  var barWidth = Math.round(0.3 * iconWidth);
  var originalWidth = group.options.barChart.width;
  var scale = originalWidth / barWidth;
  var bar1Height = Math.round(0.4 * iconHeight);
  var bar2Height = Math.round(0.75 * iconHeight);

  var offset = Math.round((iconWidth - 2 * barWidth) / 3);

  DOMutil.drawBar(x + 0.5 * barWidth + offset, y + fillHeight - bar1Height - 1, barWidth, bar1Height, group.className + ' vis-bar', framework.svgElements, framework.svg, group.style);
  DOMutil.drawBar(x + 1.5 * barWidth + offset + 2, y + fillHeight - bar2Height - 1, barWidth, bar2Height, group.className + ' vis-bar', framework.svgElements, framework.svg, group.style);

  if (group.options.drawPoints.enabled == true) {
    var groupTemplate = {
      style: group.options.drawPoints.style,
      styles: group.options.drawPoints.styles,
      size: group.options.drawPoints.size / scale,
      className: group.className
    };
    DOMutil.drawPoint(x + 0.5 * barWidth + offset, y + fillHeight - bar1Height - 1, groupTemplate, framework.svgElements, framework.svg);
    DOMutil.drawPoint(x + 1.5 * barWidth + offset + 2, y + fillHeight - bar2Height - 1, groupTemplate, framework.svgElements, framework.svg);
  }
};

/**
 * draw a bar graph
 *
 * @param {Array.<vis.GraphGroup.id>} groupIds
 * @param {Object} processedGroupData
 * @param {{svg: Object, svgElements: Array.<Object>, options: Object, groups: Array.<vis.Group>}} framework
 */
Bargraph.draw = function (groupIds, processedGroupData, framework) {
  var combinedData = [];
  var intersections = {};
  var coreDistance;
  var key, drawData;
  var group;
  var i, j;
  var barPoints = 0;

  // combine all barchart data
  for (i = 0; i < groupIds.length; i++) {
    group = framework.groups[groupIds[i]];
    if (group.options.style === 'bar') {
      if (group.visible === true && (framework.options.groups.visibility[groupIds[i]] === undefined || framework.options.groups.visibility[groupIds[i]] === true)) {
        for (j = 0; j < processedGroupData[groupIds[i]].length; j++) {
          combinedData.push({
            screen_x: processedGroupData[groupIds[i]][j].screen_x,
            screen_end: processedGroupData[groupIds[i]][j].screen_end,
            screen_y: processedGroupData[groupIds[i]][j].screen_y,
            x: processedGroupData[groupIds[i]][j].x,
            end: processedGroupData[groupIds[i]][j].end,
            y: processedGroupData[groupIds[i]][j].y,
            groupId: groupIds[i],
            label: processedGroupData[groupIds[i]][j].label
          });
          barPoints += 1;
        }
      }
    }
  }

  if (barPoints === 0) {
    return;
  }

  // sort by time and by group
  combinedData.sort(function (a, b) {
    if (a.screen_x === b.screen_x) {
      return a.groupId < b.groupId ? -1 : 1;
    } else {
      return a.screen_x - b.screen_x;
    }
  });

  // get intersections
  Bargraph._getDataIntersections(intersections, combinedData);

  // plot barchart
  for (i = 0; i < combinedData.length; i++) {
    group = framework.groups[combinedData[i].groupId];
    var minWidth = group.options.barChart.minWidth != undefined ? group.options.barChart.minWidth : 0.1 * group.options.barChart.width;

    key = combinedData[i].screen_x;
    var heightOffset = 0;
    if (intersections[key] === undefined) {
      if (i + 1 < combinedData.length) {
        coreDistance = Math.abs(combinedData[i + 1].screen_x - key);
      }
      drawData = Bargraph._getSafeDrawData(coreDistance, group, minWidth);
    } else {
      var nextKey = i + (intersections[key].amount - intersections[key].resolved);
      if (nextKey < combinedData.length) {
        coreDistance = Math.abs(combinedData[nextKey].screen_x - key);
      }
      drawData = Bargraph._getSafeDrawData(coreDistance, group, minWidth);
      intersections[key].resolved += 1;

      if (group.options.stack === true && group.options.excludeFromStacking !== true) {
        if (combinedData[i].screen_y < group.zeroPosition) {
          heightOffset = intersections[key].accumulatedNegative;
          intersections[key].accumulatedNegative += group.zeroPosition - combinedData[i].screen_y;
        } else {
          heightOffset = intersections[key].accumulatedPositive;
          intersections[key].accumulatedPositive += group.zeroPosition - combinedData[i].screen_y;
        }
      } else if (group.options.barChart.sideBySide === true) {
        drawData.width = drawData.width / intersections[key].amount;
        drawData.offset += intersections[key].resolved * drawData.width - 0.5 * drawData.width * (intersections[key].amount + 1);
      }
    }

    var dataWidth = drawData.width;
    var start = combinedData[i].screen_x;

    // are we drawing explicit boxes? (we supplied an end value)
    if (combinedData[i].screen_end != undefined) {
      dataWidth = combinedData[i].screen_end - combinedData[i].screen_x;
      start += dataWidth * 0.5;
    } else {
      start += drawData.offset;
    }

    DOMutil.drawBar(start, combinedData[i].screen_y - heightOffset, dataWidth, group.zeroPosition - combinedData[i].screen_y, group.className + ' vis-bar', framework.svgElements, framework.svg, group.style);

    // draw points
    if (group.options.drawPoints.enabled === true) {
      var pointData = {
        screen_x: combinedData[i].screen_x,
        screen_y: combinedData[i].screen_y - heightOffset,
        x: combinedData[i].x,
        y: combinedData[i].y,
        groupId: combinedData[i].groupId,
        label: combinedData[i].label
      };
      Points.draw([pointData], group, framework, drawData.offset);
      //DOMutil.drawPoint(combinedData[i].x + drawData.offset, combinedData[i].y, group, framework.svgElements, framework.svg);
    }
  }
};

/**
 * Fill the intersections object with counters of how many datapoints share the same x coordinates
 * @param {Object} intersections
 * @param {Array.<Object>} combinedData
 * @private
 */
Bargraph._getDataIntersections = function (intersections, combinedData) {
  // get intersections
  var coreDistance;
  for (var i = 0; i < combinedData.length; i++) {
    if (i + 1 < combinedData.length) {
      coreDistance = Math.abs(combinedData[i + 1].screen_x - combinedData[i].screen_x);
    }
    if (i > 0) {
      coreDistance = Math.min(coreDistance, Math.abs(combinedData[i - 1].screen_x - combinedData[i].screen_x));
    }
    if (coreDistance === 0) {
      if (intersections[combinedData[i].screen_x] === undefined) {
        intersections[combinedData[i].screen_x] = {
          amount: 0,
          resolved: 0,
          accumulatedPositive: 0,
          accumulatedNegative: 0
        };
      }
      intersections[combinedData[i].screen_x].amount += 1;
    }
  }
};

/**
 * Get the width and offset for bargraphs based on the coredistance between datapoints
 *
 * @param {number} coreDistance
 * @param {vis.Group} group
 * @param {number} minWidth
 * @returns {{width: number, offset: number}}
 * @private
 */
Bargraph._getSafeDrawData = function (coreDistance, group, minWidth) {
  var width, offset;
  if (coreDistance < group.options.barChart.width && coreDistance > 0) {
    width = coreDistance < minWidth ? minWidth : coreDistance;

    offset = 0; // recalculate offset with the new width;
    if (group.options.barChart.align === 'left') {
      offset -= 0.5 * coreDistance;
    } else if (group.options.barChart.align === 'right') {
      offset += 0.5 * coreDistance;
    }
  } else {
    // default settings
    width = group.options.barChart.width;
    offset = 0;
    if (group.options.barChart.align === 'left') {
      offset -= 0.5 * group.options.barChart.width;
    } else if (group.options.barChart.align === 'right') {
      offset += 0.5 * group.options.barChart.width;
    }
  }

  return { width: width, offset: offset };
};

Bargraph.getStackedYRange = function (combinedData, groupRanges, groupIds, groupLabel, orientation) {
  if (combinedData.length > 0) {
    // sort by time and by group
    combinedData.sort(function (a, b) {
      if (a.screen_x === b.screen_x) {
        return a.groupId < b.groupId ? -1 : 1;
      } else {
        return a.screen_x - b.screen_x;
      }
    });
    var intersections = {};

    Bargraph._getDataIntersections(intersections, combinedData);
    groupRanges[groupLabel] = Bargraph._getStackedYRange(intersections, combinedData);
    groupRanges[groupLabel].yAxisOrientation = orientation;
    groupIds.push(groupLabel);
  }
};

Bargraph._getStackedYRange = function (intersections, combinedData) {
  var key;
  var yMin = combinedData[0].screen_y;
  var yMax = combinedData[0].screen_y;
  for (var i = 0; i < combinedData.length; i++) {
    key = combinedData[i].screen_x;
    if (intersections[key] === undefined) {
      yMin = yMin > combinedData[i].screen_y ? combinedData[i].screen_y : yMin;
      yMax = yMax < combinedData[i].screen_y ? combinedData[i].screen_y : yMax;
    } else {
      if (combinedData[i].screen_y < 0) {
        intersections[key].accumulatedNegative += combinedData[i].screen_y;
      } else {
        intersections[key].accumulatedPositive += combinedData[i].screen_y;
      }
    }
  }
  for (var xpos in intersections) {
    if (intersections.hasOwnProperty(xpos)) {
      yMin = yMin > intersections[xpos].accumulatedNegative ? intersections[xpos].accumulatedNegative : yMin;
      yMin = yMin > intersections[xpos].accumulatedPositive ? intersections[xpos].accumulatedPositive : yMin;
      yMax = yMax < intersections[xpos].accumulatedNegative ? intersections[xpos].accumulatedNegative : yMax;
      yMax = yMax < intersections[xpos].accumulatedPositive ? intersections[xpos].accumulatedPositive : yMax;
    }
  }

  return { min: yMin, max: yMax };
};

module.exports = Bargraph;

/***/ }),
/* 111 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var DOMutil = __webpack_require__(14);

/**
 *
 * @param {vis.GraphGroup.id} groupId
 * @param {Object} options   // TODO: Describe options
 * @constructor Line
 */
function Line(groupId, options) {// eslint-disable-line no-unused-vars
}

Line.calcPath = function (dataset, group) {
    if (dataset != null) {
        if (dataset.length > 0) {
            var d = [];

            // construct path from dataset
            if (group.options.interpolation.enabled == true) {
                d = Line._catmullRom(dataset, group);
            } else {
                d = Line._linear(dataset);
            }
            return d;
        }
    }
};

Line.drawIcon = function (group, x, y, iconWidth, iconHeight, framework) {
    var fillHeight = iconHeight * 0.5;
    var path, fillPath;

    var outline = DOMutil.getSVGElement("rect", framework.svgElements, framework.svg);
    outline.setAttributeNS(null, "x", x);
    outline.setAttributeNS(null, "y", y - fillHeight);
    outline.setAttributeNS(null, "width", iconWidth);
    outline.setAttributeNS(null, "height", 2 * fillHeight);
    outline.setAttributeNS(null, "class", "vis-outline");

    path = DOMutil.getSVGElement("path", framework.svgElements, framework.svg);
    path.setAttributeNS(null, "class", group.className);
    if (group.style !== undefined) {
        path.setAttributeNS(null, "style", group.style);
    }

    path.setAttributeNS(null, "d", "M" + x + "," + y + " L" + (x + iconWidth) + "," + y + "");
    if (group.options.shaded.enabled == true) {
        fillPath = DOMutil.getSVGElement("path", framework.svgElements, framework.svg);
        if (group.options.shaded.orientation == 'top') {
            fillPath.setAttributeNS(null, "d", "M" + x + ", " + (y - fillHeight) + "L" + x + "," + y + " L" + (x + iconWidth) + "," + y + " L" + (x + iconWidth) + "," + (y - fillHeight));
        } else {
            fillPath.setAttributeNS(null, "d", "M" + x + "," + y + " " + "L" + x + "," + (y + fillHeight) + " " + "L" + (x + iconWidth) + "," + (y + fillHeight) + "L" + (x + iconWidth) + "," + y);
        }
        fillPath.setAttributeNS(null, "class", group.className + " vis-icon-fill");
        if (group.options.shaded.style !== undefined && group.options.shaded.style !== "") {
            fillPath.setAttributeNS(null, "style", group.options.shaded.style);
        }
    }

    if (group.options.drawPoints.enabled == true) {
        var groupTemplate = {
            style: group.options.drawPoints.style,
            styles: group.options.drawPoints.styles,
            size: group.options.drawPoints.size,
            className: group.className
        };
        DOMutil.drawPoint(x + 0.5 * iconWidth, y, groupTemplate, framework.svgElements, framework.svg);
    }
};

Line.drawShading = function (pathArray, group, subPathArray, framework) {
    // append shading to the path
    if (group.options.shaded.enabled == true) {
        var svgHeight = Number(framework.svg.style.height.replace('px', ''));
        var fillPath = DOMutil.getSVGElement('path', framework.svgElements, framework.svg);
        var type = "L";
        if (group.options.interpolation.enabled == true) {
            type = "C";
        }
        var dFill;
        var zero = 0;
        if (group.options.shaded.orientation == 'top') {
            zero = 0;
        } else if (group.options.shaded.orientation == 'bottom') {
            zero = svgHeight;
        } else {
            zero = Math.min(Math.max(0, group.zeroPosition), svgHeight);
        }
        if (group.options.shaded.orientation == 'group' && subPathArray != null && subPathArray != undefined) {
            dFill = 'M' + pathArray[0][0] + "," + pathArray[0][1] + " " + this.serializePath(pathArray, type, false) + ' L' + subPathArray[subPathArray.length - 1][0] + "," + subPathArray[subPathArray.length - 1][1] + " " + this.serializePath(subPathArray, type, true) + subPathArray[0][0] + "," + subPathArray[0][1] + " Z";
        } else {
            dFill = 'M' + pathArray[0][0] + "," + pathArray[0][1] + " " + this.serializePath(pathArray, type, false) + ' V' + zero + ' H' + pathArray[0][0] + " Z";
        }

        fillPath.setAttributeNS(null, 'class', group.className + ' vis-fill');
        if (group.options.shaded.style !== undefined) {
            fillPath.setAttributeNS(null, 'style', group.options.shaded.style);
        }
        fillPath.setAttributeNS(null, 'd', dFill);
    }
};

/**
 * draw a line graph
 *
 * @param {Array.<Object>} pathArray
 * @param {vis.Group} group
 * @param {{svg: Object, svgElements: Array.<Object>, options: Object, groups: Array.<vis.Group>}} framework
 */
Line.draw = function (pathArray, group, framework) {
    if (pathArray != null && pathArray != undefined) {
        var path = DOMutil.getSVGElement('path', framework.svgElements, framework.svg);
        path.setAttributeNS(null, "class", group.className);
        if (group.style !== undefined) {
            path.setAttributeNS(null, "style", group.style);
        }

        var type = "L";
        if (group.options.interpolation.enabled == true) {
            type = "C";
        }
        // copy properties to path for drawing.
        path.setAttributeNS(null, 'd', 'M' + pathArray[0][0] + "," + pathArray[0][1] + " " + this.serializePath(pathArray, type, false));
    }
};

Line.serializePath = function (pathArray, type, inverse) {
    if (pathArray.length < 2) {
        //Too little data to create a path.
        return "";
    }
    var d = type;
    var i;
    if (inverse) {
        for (i = pathArray.length - 2; i > 0; i--) {
            d += pathArray[i][0] + "," + pathArray[i][1] + " ";
        }
    } else {
        for (i = 1; i < pathArray.length; i++) {
            d += pathArray[i][0] + "," + pathArray[i][1] + " ";
        }
    }
    return d;
};

/**
 * This uses an uniform parametrization of the interpolation algorithm:
 * 'On the Parameterization of Catmull-Rom Curves' by Cem Yuksel et al.
 * @param {Array.<Object>} data
 * @returns {string}
 * @private
 */
Line._catmullRomUniform = function (data) {
    // catmull rom
    var p0, p1, p2, p3, bp1, bp2;
    var d = [];
    d.push([Math.round(data[0].screen_x), Math.round(data[0].screen_y)]);
    var normalization = 1 / 6;
    var length = data.length;
    for (var i = 0; i < length - 1; i++) {

        p0 = i == 0 ? data[0] : data[i - 1];
        p1 = data[i];
        p2 = data[i + 1];
        p3 = i + 2 < length ? data[i + 2] : p2;

        // Catmull-Rom to Cubic Bezier conversion matrix
        //    0       1       0       0
        //  -1/6      1      1/6      0
        //    0      1/6      1     -1/6
        //    0       0       1       0

        //    bp0 = { x: p1.x,                               y: p1.y };
        bp1 = {
            screen_x: (-p0.screen_x + 6 * p1.screen_x + p2.screen_x) * normalization,
            screen_y: (-p0.screen_y + 6 * p1.screen_y + p2.screen_y) * normalization
        };
        bp2 = {
            screen_x: (p1.screen_x + 6 * p2.screen_x - p3.screen_x) * normalization,
            screen_y: (p1.screen_y + 6 * p2.screen_y - p3.screen_y) * normalization
        };
        //    bp0 = { x: p2.x,                               y: p2.y };

        d.push([bp1.screen_x, bp1.screen_y]);
        d.push([bp2.screen_x, bp2.screen_y]);
        d.push([p2.screen_x, p2.screen_y]);
    }

    return d;
};

/**
 * This uses either the chordal or centripetal parameterization of the catmull-rom algorithm.
 * By default, the centripetal parameterization is used because this gives the nicest results.
 * These parameterizations are relatively heavy because the distance between 4 points have to be calculated.
 *
 * One optimization can be used to reuse distances since this is a sliding window approach.
 * @param {Array.<Object>} data
 * @param {vis.GraphGroup} group
 * @returns {string}
 * @private
 */
Line._catmullRom = function (data, group) {
    var alpha = group.options.interpolation.alpha;
    if (alpha == 0 || alpha === undefined) {
        return this._catmullRomUniform(data);
    } else {
        var p0, p1, p2, p3, bp1, bp2, d1, d2, d3, A, B, N, M;
        var d3powA, d2powA, d3pow2A, d2pow2A, d1pow2A, d1powA;
        var d = [];
        d.push([Math.round(data[0].screen_x), Math.round(data[0].screen_y)]);
        var length = data.length;
        for (var i = 0; i < length - 1; i++) {

            p0 = i == 0 ? data[0] : data[i - 1];
            p1 = data[i];
            p2 = data[i + 1];
            p3 = i + 2 < length ? data[i + 2] : p2;

            d1 = Math.sqrt(Math.pow(p0.screen_x - p1.screen_x, 2) + Math.pow(p0.screen_y - p1.screen_y, 2));
            d2 = Math.sqrt(Math.pow(p1.screen_x - p2.screen_x, 2) + Math.pow(p1.screen_y - p2.screen_y, 2));
            d3 = Math.sqrt(Math.pow(p2.screen_x - p3.screen_x, 2) + Math.pow(p2.screen_y - p3.screen_y, 2));

            // Catmull-Rom to Cubic Bezier conversion matrix

            // A = 2d1^2a + 3d1^a * d2^a + d3^2a
            // B = 2d3^2a + 3d3^a * d2^a + d2^2a

            // [   0             1            0          0          ]
            // [   -d2^2a /N     A/N          d1^2a /N   0          ]
            // [   0             d3^2a /M     B/M        -d2^2a /M  ]
            // [   0             0            1          0          ]

            d3powA = Math.pow(d3, alpha);
            d3pow2A = Math.pow(d3, 2 * alpha);
            d2powA = Math.pow(d2, alpha);
            d2pow2A = Math.pow(d2, 2 * alpha);
            d1powA = Math.pow(d1, alpha);
            d1pow2A = Math.pow(d1, 2 * alpha);

            A = 2 * d1pow2A + 3 * d1powA * d2powA + d2pow2A;
            B = 2 * d3pow2A + 3 * d3powA * d2powA + d2pow2A;
            N = 3 * d1powA * (d1powA + d2powA);
            if (N > 0) {
                N = 1 / N;
            }
            M = 3 * d3powA * (d3powA + d2powA);
            if (M > 0) {
                M = 1 / M;
            }

            bp1 = {
                screen_x: (-d2pow2A * p0.screen_x + A * p1.screen_x + d1pow2A * p2.screen_x) * N,
                screen_y: (-d2pow2A * p0.screen_y + A * p1.screen_y + d1pow2A * p2.screen_y) * N
            };

            bp2 = {
                screen_x: (d3pow2A * p1.screen_x + B * p2.screen_x - d2pow2A * p3.screen_x) * M,
                screen_y: (d3pow2A * p1.screen_y + B * p2.screen_y - d2pow2A * p3.screen_y) * M
            };

            if (bp1.screen_x == 0 && bp1.screen_y == 0) {
                bp1 = p1;
            }
            if (bp2.screen_x == 0 && bp2.screen_y == 0) {
                bp2 = p2;
            }
            d.push([bp1.screen_x, bp1.screen_y]);
            d.push([bp2.screen_x, bp2.screen_y]);
            d.push([p2.screen_x, p2.screen_y]);
        }

        return d;
    }
};

/**
 * this generates the SVG path for a linear drawing between datapoints.
 * @param {Array.<Object>} data
 * @returns {string}
 * @private
 */
Line._linear = function (data) {
    // linear
    var d = [];
    for (var i = 0; i < data.length; i++) {
        d.push([data[i].screen_x, data[i].screen_y]);
    }
    return d;
};

module.exports = Line;

/***/ }),
/* 112 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _keys = __webpack_require__(8);

var _keys2 = _interopRequireDefault(_keys);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var DOMutil = __webpack_require__(14);
var Component = __webpack_require__(16);

/**
 * Legend for Graph2d
 *
 * @param {vis.Graph2d.body} body
 * @param {vis.Graph2d.options} options
 * @param {number} side
 * @param {vis.LineGraph.options} linegraphOptions
 * @constructor Legend
 * @extends Component
 */
function Legend(body, options, side, linegraphOptions) {
  this.body = body;
  this.defaultOptions = {
    enabled: false,
    icons: true,
    iconSize: 20,
    iconSpacing: 6,
    left: {
      visible: true,
      position: 'top-left' // top/bottom - left,center,right
    },
    right: {
      visible: true,
      position: 'top-right' // top/bottom - left,center,right
    }
  };

  this.side = side;
  this.options = util.extend({}, this.defaultOptions);
  this.linegraphOptions = linegraphOptions;

  this.svgElements = {};
  this.dom = {};
  this.groups = {};
  this.amountOfGroups = 0;
  this._create();
  this.framework = { svg: this.svg, svgElements: this.svgElements, options: this.options, groups: this.groups };

  this.setOptions(options);
}

Legend.prototype = new Component();

Legend.prototype.clear = function () {
  this.groups = {};
  this.amountOfGroups = 0;
};

Legend.prototype.addGroup = function (label, graphOptions) {

  // Include a group only if the group option 'excludeFromLegend: false' is not set.
  if (graphOptions.options.excludeFromLegend != true) {
    if (!this.groups.hasOwnProperty(label)) {
      this.groups[label] = graphOptions;
    }
    this.amountOfGroups += 1;
  }
};

Legend.prototype.updateGroup = function (label, graphOptions) {
  this.groups[label] = graphOptions;
};

Legend.prototype.removeGroup = function (label) {
  if (this.groups.hasOwnProperty(label)) {
    delete this.groups[label];
    this.amountOfGroups -= 1;
  }
};

Legend.prototype._create = function () {
  this.dom.frame = document.createElement('div');
  this.dom.frame.className = 'vis-legend';
  this.dom.frame.style.position = "absolute";
  this.dom.frame.style.top = "10px";
  this.dom.frame.style.display = "block";

  this.dom.textArea = document.createElement('div');
  this.dom.textArea.className = 'vis-legend-text';
  this.dom.textArea.style.position = "relative";
  this.dom.textArea.style.top = "0px";

  this.svg = document.createElementNS('http://www.w3.org/2000/svg', "svg");
  this.svg.style.position = 'absolute';
  this.svg.style.top = 0 + 'px';
  this.svg.style.width = this.options.iconSize + 5 + 'px';
  this.svg.style.height = '100%';

  this.dom.frame.appendChild(this.svg);
  this.dom.frame.appendChild(this.dom.textArea);
};

/**
 * Hide the component from the DOM
 */
Legend.prototype.hide = function () {
  // remove the frame containing the items
  if (this.dom.frame.parentNode) {
    this.dom.frame.parentNode.removeChild(this.dom.frame);
  }
};

/**
 * Show the component in the DOM (when not already visible).
 */
Legend.prototype.show = function () {
  // show frame containing the items
  if (!this.dom.frame.parentNode) {
    this.body.dom.center.appendChild(this.dom.frame);
  }
};

Legend.prototype.setOptions = function (options) {
  var fields = ['enabled', 'orientation', 'icons', 'left', 'right'];
  util.selectiveDeepExtend(fields, this.options, options);
};

Legend.prototype.redraw = function () {
  var activeGroups = 0;
  var groupArray = (0, _keys2['default'])(this.groups);
  groupArray.sort(function (a, b) {
    return a < b ? -1 : 1;
  });

  for (var i = 0; i < groupArray.length; i++) {
    var groupId = groupArray[i];
    if (this.groups[groupId].visible == true && (this.linegraphOptions.visibility[groupId] === undefined || this.linegraphOptions.visibility[groupId] == true)) {
      activeGroups++;
    }
  }

  if (this.options[this.side].visible == false || this.amountOfGroups == 0 || this.options.enabled == false || activeGroups == 0) {
    this.hide();
  } else {
    this.show();
    if (this.options[this.side].position == 'top-left' || this.options[this.side].position == 'bottom-left') {
      this.dom.frame.style.left = '4px';
      this.dom.frame.style.textAlign = "left";
      this.dom.textArea.style.textAlign = "left";
      this.dom.textArea.style.left = this.options.iconSize + 15 + 'px';
      this.dom.textArea.style.right = '';
      this.svg.style.left = 0 + 'px';
      this.svg.style.right = '';
    } else {
      this.dom.frame.style.right = '4px';
      this.dom.frame.style.textAlign = "right";
      this.dom.textArea.style.textAlign = "right";
      this.dom.textArea.style.right = this.options.iconSize + 15 + 'px';
      this.dom.textArea.style.left = '';
      this.svg.style.right = 0 + 'px';
      this.svg.style.left = '';
    }

    if (this.options[this.side].position == 'top-left' || this.options[this.side].position == 'top-right') {
      this.dom.frame.style.top = 4 - Number(this.body.dom.center.style.top.replace("px", "")) + 'px';
      this.dom.frame.style.bottom = '';
    } else {
      var scrollableHeight = this.body.domProps.center.height - this.body.domProps.centerContainer.height;
      this.dom.frame.style.bottom = 4 + scrollableHeight + Number(this.body.dom.center.style.top.replace("px", "")) + 'px';
      this.dom.frame.style.top = '';
    }

    if (this.options.icons == false) {
      this.dom.frame.style.width = this.dom.textArea.offsetWidth + 10 + 'px';
      this.dom.textArea.style.right = '';
      this.dom.textArea.style.left = '';
      this.svg.style.width = '0px';
    } else {
      this.dom.frame.style.width = this.options.iconSize + 15 + this.dom.textArea.offsetWidth + 10 + 'px';
      this.drawLegendIcons();
    }

    var content = '';
    for (i = 0; i < groupArray.length; i++) {
      groupId = groupArray[i];
      if (this.groups[groupId].visible == true && (this.linegraphOptions.visibility[groupId] === undefined || this.linegraphOptions.visibility[groupId] == true)) {
        content += this.groups[groupId].content + '<br />';
      }
    }
    this.dom.textArea.innerHTML = content;
    this.dom.textArea.style.lineHeight = 0.75 * this.options.iconSize + this.options.iconSpacing + 'px';
  }
};

Legend.prototype.drawLegendIcons = function () {
  if (this.dom.frame.parentNode) {
    var groupArray = (0, _keys2['default'])(this.groups);
    groupArray.sort(function (a, b) {
      return a < b ? -1 : 1;
    });

    // this resets the elements so the order is maintained
    DOMutil.resetElements(this.svgElements);

    var padding = window.getComputedStyle(this.dom.frame).paddingTop;
    var iconOffset = Number(padding.replace('px', ''));
    var x = iconOffset;
    var iconWidth = this.options.iconSize;
    var iconHeight = 0.75 * this.options.iconSize;
    var y = iconOffset + 0.5 * iconHeight + 3;

    this.svg.style.width = iconWidth + 5 + iconOffset + 'px';

    for (var i = 0; i < groupArray.length; i++) {
      var groupId = groupArray[i];
      if (this.groups[groupId].visible == true && (this.linegraphOptions.visibility[groupId] === undefined || this.linegraphOptions.visibility[groupId] == true)) {
        this.groups[groupId].getLegend(iconWidth, iconHeight, this.framework, x, y);
        y += iconHeight + this.options.iconSpacing;
      }
    }
  }
};

module.exports = Legend;

/***/ }),
/* 113 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
/**
 * This object contains all possible options. It will check if the types are correct, if required if the option is one
 * of the allowed values.
 *
 * __any__ means that the name of the property does not matter.
 * __type__ is a required field for all objects and contains the allowed types of all objects
 */
var string = 'string';
var bool = 'boolean';
var number = 'number';
var array = 'array';
var date = 'date';
var object = 'object'; // should only be in a __type__ property
var dom = 'dom';
var moment = 'moment';
var any = 'any';

var allOptions = {
  configure: {
    enabled: { 'boolean': bool },
    filter: { 'boolean': bool, 'function': 'function' },
    container: { dom: dom },
    __type__: { object: object, 'boolean': bool, 'function': 'function' }
  },

  //globals :
  yAxisOrientation: { string: ['left', 'right'] },
  defaultGroup: { string: string },
  sort: { 'boolean': bool },
  sampling: { 'boolean': bool },
  stack: { 'boolean': bool },
  graphHeight: { string: string, number: number },
  shaded: {
    enabled: { 'boolean': bool },
    orientation: { string: ['bottom', 'top', 'zero', 'group'] }, // top, bottom, zero, group
    groupId: { object: object },
    __type__: { 'boolean': bool, object: object }
  },
  style: { string: ['line', 'bar', 'points'] }, // line, bar
  barChart: {
    width: { number: number },
    minWidth: { number: number },
    sideBySide: { 'boolean': bool },
    align: { string: ['left', 'center', 'right'] },
    __type__: { object: object }
  },
  interpolation: {
    enabled: { 'boolean': bool },
    parametrization: { string: ['centripetal', 'chordal', 'uniform'] }, // uniform (alpha = 0.0), chordal (alpha = 1.0), centripetal (alpha = 0.5)
    alpha: { number: number },
    __type__: { object: object, 'boolean': bool }
  },
  drawPoints: {
    enabled: { 'boolean': bool },
    onRender: { 'function': 'function' },
    size: { number: number },
    style: { string: ['square', 'circle'] }, // square, circle
    __type__: { object: object, 'boolean': bool, 'function': 'function' }
  },
  dataAxis: {
    showMinorLabels: { 'boolean': bool },
    showMajorLabels: { 'boolean': bool },
    icons: { 'boolean': bool },
    width: { string: string, number: number },
    visible: { 'boolean': bool },
    alignZeros: { 'boolean': bool },
    left: {
      range: { min: { number: number, 'undefined': 'undefined' }, max: { number: number, 'undefined': 'undefined' }, __type__: { object: object } },
      format: { 'function': 'function' },
      title: { text: { string: string, number: number, 'undefined': 'undefined' }, style: { string: string, 'undefined': 'undefined' }, __type__: { object: object } },
      __type__: { object: object }
    },
    right: {
      range: { min: { number: number, 'undefined': 'undefined' }, max: { number: number, 'undefined': 'undefined' }, __type__: { object: object } },
      format: { 'function': 'function' },
      title: { text: { string: string, number: number, 'undefined': 'undefined' }, style: { string: string, 'undefined': 'undefined' }, __type__: { object: object } },
      __type__: { object: object }
    },
    __type__: { object: object }
  },
  legend: {
    enabled: { 'boolean': bool },
    icons: { 'boolean': bool },
    left: {
      visible: { 'boolean': bool },
      position: { string: ['top-right', 'bottom-right', 'top-left', 'bottom-left'] },
      __type__: { object: object }
    },
    right: {
      visible: { 'boolean': bool },
      position: { string: ['top-right', 'bottom-right', 'top-left', 'bottom-left'] },
      __type__: { object: object }
    },
    __type__: { object: object, 'boolean': bool }
  },
  groups: {
    visibility: { any: any },
    __type__: { object: object }
  },

  autoResize: { 'boolean': bool },
  throttleRedraw: { number: number }, // TODO: DEPRICATED see https://github.com/almende/vis/issues/2511
  clickToUse: { 'boolean': bool },
  end: { number: number, date: date, string: string, moment: moment },
  format: {
    minorLabels: {
      millisecond: { string: string, 'undefined': 'undefined' },
      second: { string: string, 'undefined': 'undefined' },
      minute: { string: string, 'undefined': 'undefined' },
      hour: { string: string, 'undefined': 'undefined' },
      weekday: { string: string, 'undefined': 'undefined' },
      day: { string: string, 'undefined': 'undefined' },
      month: { string: string, 'undefined': 'undefined' },
      year: { string: string, 'undefined': 'undefined' },
      __type__: { object: object }
    },
    majorLabels: {
      millisecond: { string: string, 'undefined': 'undefined' },
      second: { string: string, 'undefined': 'undefined' },
      minute: { string: string, 'undefined': 'undefined' },
      hour: { string: string, 'undefined': 'undefined' },
      weekday: { string: string, 'undefined': 'undefined' },
      day: { string: string, 'undefined': 'undefined' },
      month: { string: string, 'undefined': 'undefined' },
      year: { string: string, 'undefined': 'undefined' },
      __type__: { object: object }
    },
    __type__: { object: object }
  },
  moment: { 'function': 'function' },
  height: { string: string, number: number },
  hiddenDates: {
    start: { date: date, number: number, string: string, moment: moment },
    end: { date: date, number: number, string: string, moment: moment },
    repeat: { string: string },
    __type__: { object: object, array: array }
  },
  locale: { string: string },
  locales: {
    __any__: { any: any },
    __type__: { object: object }
  },
  max: { date: date, number: number, string: string, moment: moment },
  maxHeight: { number: number, string: string },
  maxMinorChars: { number: number },
  min: { date: date, number: number, string: string, moment: moment },
  minHeight: { number: number, string: string },
  moveable: { 'boolean': bool },
  multiselect: { 'boolean': bool },
  orientation: { string: string },
  showCurrentTime: { 'boolean': bool },
  showMajorLabels: { 'boolean': bool },
  showMinorLabels: { 'boolean': bool },
  start: { date: date, number: number, string: string, moment: moment },
  timeAxis: {
    scale: { string: string, 'undefined': 'undefined' },
    step: { number: number, 'undefined': 'undefined' },
    __type__: { object: object }
  },
  width: { string: string, number: number },
  zoomable: { 'boolean': bool },
  zoomKey: { string: ['ctrlKey', 'altKey', 'metaKey', ''] },
  zoomMax: { number: number },
  zoomMin: { number: number },
  zIndex: { number: number },
  __type__: { object: object }
};

var configureOptions = {
  global: {
    //yAxisOrientation: ['left','right'], // TDOO: enable as soon as Grahp2d doesn't crash when changing this on the fly
    sort: true,
    sampling: true,
    stack: false,
    shaded: {
      enabled: false,
      orientation: ['zero', 'top', 'bottom', 'group'] // zero, top, bottom
    },
    style: ['line', 'bar', 'points'], // line, bar
    barChart: {
      width: [50, 5, 100, 5],
      minWidth: [50, 5, 100, 5],
      sideBySide: false,
      align: ['left', 'center', 'right'] // left, center, right
    },
    interpolation: {
      enabled: true,
      parametrization: ['centripetal', 'chordal', 'uniform'] // uniform (alpha = 0.0), chordal (alpha = 1.0), centripetal (alpha = 0.5)
    },
    drawPoints: {
      enabled: true,
      size: [6, 2, 30, 1],
      style: ['square', 'circle'] // square, circle
    },
    dataAxis: {
      showMinorLabels: true,
      showMajorLabels: true,
      icons: false,
      width: [40, 0, 200, 1],
      visible: true,
      alignZeros: true,
      left: {
        //range: {min:'undefined': 'undefined'ined,max:'undefined': 'undefined'ined},
        //format: function (value) {return value;},
        title: { text: '', style: '' }
      },
      right: {
        //range: {min:'undefined': 'undefined'ined,max:'undefined': 'undefined'ined},
        //format: function (value) {return value;},
        title: { text: '', style: '' }
      }
    },
    legend: {
      enabled: false,
      icons: true,
      left: {
        visible: true,
        position: ['top-right', 'bottom-right', 'top-left', 'bottom-left'] // top/bottom - left,right
      },
      right: {
        visible: true,
        position: ['top-right', 'bottom-right', 'top-left', 'bottom-left'] // top/bottom - left,right
      }
    },

    autoResize: true,
    clickToUse: false,
    end: '',
    format: {
      minorLabels: {
        millisecond: 'SSS',
        second: 's',
        minute: 'HH:mm',
        hour: 'HH:mm',
        weekday: 'ddd D',
        day: 'D',
        month: 'MMM',
        year: 'YYYY'
      },
      majorLabels: {
        millisecond: 'HH:mm:ss',
        second: 'D MMMM HH:mm',
        minute: 'ddd D MMMM',
        hour: 'ddd D MMMM',
        weekday: 'MMMM YYYY',
        day: 'MMMM YYYY',
        month: 'YYYY',
        year: ''
      }
    },

    height: '',
    locale: '',
    max: '',
    maxHeight: '',
    maxMinorChars: [7, 0, 20, 1],
    min: '',
    minHeight: '',
    moveable: true,
    orientation: ['both', 'bottom', 'top'],
    showCurrentTime: false,
    showMajorLabels: true,
    showMinorLabels: true,
    start: '',
    width: '100%',
    zoomable: true,
    zoomKey: ['ctrlKey', 'altKey', 'metaKey', ''],
    zoomMax: [315360000000000, 10, 315360000000000, 1],
    zoomMin: [10, 10, 315360000000000, 1],
    zIndex: 0
  }
};

exports.allOptions = allOptions;
exports.configureOptions = configureOptions;

/***/ }),
/* 114 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _create = __webpack_require__(29);

var _create2 = _interopRequireDefault(_create);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Parse a text source containing data in DOT language into a JSON object.
 * The object contains two lists: one with nodes and one with edges.
 *
 * DOT language reference: http://www.graphviz.org/doc/info/lang.html
 *
 * DOT language attributes: http://graphviz.org/content/attrs
 *
 * @param {string} data     Text containing a graph in DOT-notation
 * @return {Object} graph   An object containing two parameters:
 *                          {Object[]} nodes
 *                          {Object[]} edges
 *
 * -------------------------------------------
 * TODO
 * ====
 *
 * For label handling, this is an incomplete implementation. From docs (quote #3015):
 * 
 * > the escape sequences "\n", "\l" and "\r" divide the label into lines, centered, 
 * > left-justified, and right-justified, respectively.
 *
 * Source: http://www.graphviz.org/content/attrs#kescString
 *
 * > As another aid for readability, dot allows double-quoted strings to span multiple physical
 * > lines using the standard C convention of a backslash immediately preceding a newline
 * > character
 * > In addition, double-quoted strings can be concatenated using a '+' operator.
 * > As HTML strings can contain newline characters, which are used solely for formatting,
 * > the language does not allow escaped newlines or concatenation operators to be used
 * > within them.
 *
 * - Currently, only '\\n' is handled
 * - Note that text explicitly says 'labels'; the dot parser currently handles escape
 *   sequences in **all** strings.
 */
function parseDOT(data) {
  dot = data;
  return parseGraph();
}

// mapping of attributes from DOT (the keys) to vis.js (the values)
var NODE_ATTR_MAPPING = {
  'fontsize': 'font.size',
  'fontcolor': 'font.color',
  'labelfontcolor': 'font.color',
  'fontname': 'font.face',
  'color': ['color.border', 'color.background'],
  'fillcolor': 'color.background',
  'tooltip': 'title',
  'labeltooltip': 'title'
};
var EDGE_ATTR_MAPPING = (0, _create2['default'])(NODE_ATTR_MAPPING);
EDGE_ATTR_MAPPING.color = 'color.color';
EDGE_ATTR_MAPPING.style = 'dashes';

// token types enumeration
var TOKENTYPE = {
  NULL: 0,
  DELIMITER: 1,
  IDENTIFIER: 2,
  UNKNOWN: 3
};

// map with all delimiters
var DELIMITERS = {
  '{': true,
  '}': true,
  '[': true,
  ']': true,
  ';': true,
  '=': true,
  ',': true,

  '->': true,
  '--': true
};

var dot = ''; // current dot file
var index = 0; // current index in dot file
var c = ''; // current token character in expr
var token = ''; // current token
var tokenType = TOKENTYPE.NULL; // type of the token

/**
 * Get the first character from the dot file.
 * The character is stored into the char c. If the end of the dot file is
 * reached, the function puts an empty string in c.
 */
function first() {
  index = 0;
  c = dot.charAt(0);
}

/**
 * Get the next character from the dot file.
 * The character is stored into the char c. If the end of the dot file is
 * reached, the function puts an empty string in c.
 */
function next() {
  index++;
  c = dot.charAt(index);
}

/**
 * Preview the next character from the dot file.
 * @return {string} cNext
 */
function nextPreview() {
  return dot.charAt(index + 1);
}

var regexAlphaNumeric = /[a-zA-Z_0-9.:#]/;
/**
 * Test whether given character is alphabetic or numeric
 * @param {string} c
 * @return {Boolean} isAlphaNumeric
 */
function isAlphaNumeric(c) {
  return regexAlphaNumeric.test(c);
}

/**
 * Merge all options of object b into object b
 * @param {Object} a
 * @param {Object} b
 * @return {Object} a
 */
function merge(a, b) {
  if (!a) {
    a = {};
  }

  if (b) {
    for (var name in b) {
      if (b.hasOwnProperty(name)) {
        a[name] = b[name];
      }
    }
  }
  return a;
}

/**
 * Set a value in an object, where the provided parameter name can be a
 * path with nested parameters. For example:
 *
 *     var obj = {a: 2};
 *     setValue(obj, 'b.c', 3);     // obj = {a: 2, b: {c: 3}}
 *
 * @param {Object} obj
 * @param {string} path  A parameter name or dot-separated parameter path,
 *                      like "color.highlight.border".
 * @param {*} value
 */
function setValue(obj, path, value) {
  var keys = path.split('.');
  var o = obj;
  while (keys.length) {
    var key = keys.shift();
    if (keys.length) {
      // this isn't the end point
      if (!o[key]) {
        o[key] = {};
      }
      o = o[key];
    } else {
      // this is the end point
      o[key] = value;
    }
  }
}

/**
 * Add a node to a graph object. If there is already a node with
 * the same id, their attributes will be merged.
 * @param {Object} graph
 * @param {Object} node
 */
function addNode(graph, node) {
  var i, len;
  var current = null;

  // find root graph (in case of subgraph)
  var graphs = [graph]; // list with all graphs from current graph to root graph
  var root = graph;
  while (root.parent) {
    graphs.push(root.parent);
    root = root.parent;
  }

  // find existing node (at root level) by its id
  if (root.nodes) {
    for (i = 0, len = root.nodes.length; i < len; i++) {
      if (node.id === root.nodes[i].id) {
        current = root.nodes[i];
        break;
      }
    }
  }

  if (!current) {
    // this is a new node
    current = {
      id: node.id
    };
    if (graph.node) {
      // clone default attributes
      current.attr = merge(current.attr, graph.node);
    }
  }

  // add node to this (sub)graph and all its parent graphs
  for (i = graphs.length - 1; i >= 0; i--) {
    var g = graphs[i];

    if (!g.nodes) {
      g.nodes = [];
    }
    if (g.nodes.indexOf(current) === -1) {
      g.nodes.push(current);
    }
  }

  // merge attributes
  if (node.attr) {
    current.attr = merge(current.attr, node.attr);
  }
}

/**
 * Add an edge to a graph object
 * @param {Object} graph
 * @param {Object} edge
 */
function addEdge(graph, edge) {
  if (!graph.edges) {
    graph.edges = [];
  }
  graph.edges.push(edge);
  if (graph.edge) {
    var attr = merge({}, graph.edge); // clone default attributes
    edge.attr = merge(attr, edge.attr); // merge attributes
  }
}

/**
 * Create an edge to a graph object
 * @param {Object} graph
 * @param {string | number | Object} from
 * @param {string | number | Object} to
 * @param {string} type
 * @param {Object | null} attr
 * @return {Object} edge
 */
function createEdge(graph, from, to, type, attr) {
  var edge = {
    from: from,
    to: to,
    type: type
  };

  if (graph.edge) {
    edge.attr = merge({}, graph.edge); // clone default attributes
  }
  edge.attr = merge(edge.attr || {}, attr); // merge attributes

  return edge;
}

/**
 * Get next token in the current dot file.
 * The token and token type are available as token and tokenType
 */
function getToken() {
  tokenType = TOKENTYPE.NULL;
  token = '';

  // skip over whitespaces
  while (c === ' ' || c === '\t' || c === '\n' || c === '\r') {
    // space, tab, enter
    next();
  }

  do {
    var isComment = false;

    // skip comment
    if (c === '#') {
      // find the previous non-space character
      var i = index - 1;
      while (dot.charAt(i) === ' ' || dot.charAt(i) === '\t') {
        i--;
      }
      if (dot.charAt(i) === '\n' || dot.charAt(i) === '') {
        // the # is at the start of a line, this is indeed a line comment
        while (c != '' && c != '\n') {
          next();
        }
        isComment = true;
      }
    }
    if (c === '/' && nextPreview() === '/') {
      // skip line comment
      while (c != '' && c != '\n') {
        next();
      }
      isComment = true;
    }
    if (c === '/' && nextPreview() === '*') {
      // skip block comment
      while (c != '') {
        if (c === '*' && nextPreview() === '/') {
          // end of block comment found. skip these last two characters
          next();
          next();
          break;
        } else {
          next();
        }
      }
      isComment = true;
    }

    // skip over whitespaces
    while (c === ' ' || c === '\t' || c === '\n' || c === '\r') {
      // space, tab, enter
      next();
    }
  } while (isComment);

  // check for end of dot file
  if (c === '') {
    // token is still empty
    tokenType = TOKENTYPE.DELIMITER;
    return;
  }

  // check for delimiters consisting of 2 characters
  var c2 = c + nextPreview();
  if (DELIMITERS[c2]) {
    tokenType = TOKENTYPE.DELIMITER;
    token = c2;
    next();
    next();
    return;
  }

  // check for delimiters consisting of 1 character
  if (DELIMITERS[c]) {
    tokenType = TOKENTYPE.DELIMITER;
    token = c;
    next();
    return;
  }

  // check for an identifier (number or string)
  // TODO: more precise parsing of numbers/strings (and the port separator ':')
  if (isAlphaNumeric(c) || c === '-') {
    token += c;
    next();

    while (isAlphaNumeric(c)) {
      token += c;
      next();
    }
    if (token === 'false') {
      token = false; // convert to boolean
    } else if (token === 'true') {
      token = true; // convert to boolean
    } else if (!isNaN(Number(token))) {
      token = Number(token); // convert to number
    }
    tokenType = TOKENTYPE.IDENTIFIER;
    return;
  }

  // check for a string enclosed by double quotes
  if (c === '"') {
    next();
    while (c != '' && (c != '"' || c === '"' && nextPreview() === '"')) {
      if (c === '"') {
        // skip the escape character
        token += c;
        next();
      } else if (c === '\\' && nextPreview() === 'n') {
        // Honor a newline escape sequence
        token += '\n';
        next();
      } else {
        token += c;
      }
      next();
    }
    if (c != '"') {
      throw newSyntaxError('End of string " expected');
    }
    next();
    tokenType = TOKENTYPE.IDENTIFIER;
    return;
  }

  // something unknown is found, wrong characters, a syntax error
  tokenType = TOKENTYPE.UNKNOWN;
  while (c != '') {
    token += c;
    next();
  }
  throw new SyntaxError('Syntax error in part "' + chop(token, 30) + '"');
}

/**
 * Parse a graph.
 * @returns {Object} graph
 */
function parseGraph() {
  var graph = {};

  first();
  getToken();

  // optional strict keyword
  if (token === 'strict') {
    graph.strict = true;
    getToken();
  }

  // graph or digraph keyword
  if (token === 'graph' || token === 'digraph') {
    graph.type = token;
    getToken();
  }

  // optional graph id
  if (tokenType === TOKENTYPE.IDENTIFIER) {
    graph.id = token;
    getToken();
  }

  // open angle bracket
  if (token != '{') {
    throw newSyntaxError('Angle bracket { expected');
  }
  getToken();

  // statements
  parseStatements(graph);

  // close angle bracket
  if (token != '}') {
    throw newSyntaxError('Angle bracket } expected');
  }
  getToken();

  // end of file
  if (token !== '') {
    throw newSyntaxError('End of file expected');
  }
  getToken();

  // remove temporary default options
  delete graph.node;
  delete graph.edge;
  delete graph.graph;

  return graph;
}

/**
 * Parse a list with statements.
 * @param {Object} graph
 */
function parseStatements(graph) {
  while (token !== '' && token != '}') {
    parseStatement(graph);
    if (token === ';') {
      getToken();
    }
  }
}

/**
 * Parse a single statement. Can be a an attribute statement, node
 * statement, a series of node statements and edge statements, or a
 * parameter.
 * @param {Object} graph
 */
function parseStatement(graph) {
  // parse subgraph
  var subgraph = parseSubgraph(graph);
  if (subgraph) {
    // edge statements
    parseEdge(graph, subgraph);

    return;
  }

  // parse an attribute statement
  var attr = parseAttributeStatement(graph);
  if (attr) {
    return;
  }

  // parse node
  if (tokenType != TOKENTYPE.IDENTIFIER) {
    throw newSyntaxError('Identifier expected');
  }
  var id = token; // id can be a string or a number
  getToken();

  if (token === '=') {
    // id statement
    getToken();
    if (tokenType != TOKENTYPE.IDENTIFIER) {
      throw newSyntaxError('Identifier expected');
    }
    graph[id] = token;
    getToken();
    // TODO: implement comma separated list with "a_list: ID=ID [','] [a_list] "
  } else {
    parseNodeStatement(graph, id);
  }
}

/**
 * Parse a subgraph
 * @param {Object} graph    parent graph object
 * @return {Object | null} subgraph
 */
function parseSubgraph(graph) {
  var subgraph = null;

  // optional subgraph keyword
  if (token === 'subgraph') {
    subgraph = {};
    subgraph.type = 'subgraph';
    getToken();

    // optional graph id
    if (tokenType === TOKENTYPE.IDENTIFIER) {
      subgraph.id = token;
      getToken();
    }
  }

  // open angle bracket
  if (token === '{') {
    getToken();

    if (!subgraph) {
      subgraph = {};
    }
    subgraph.parent = graph;
    subgraph.node = graph.node;
    subgraph.edge = graph.edge;
    subgraph.graph = graph.graph;

    // statements
    parseStatements(subgraph);

    // close angle bracket
    if (token != '}') {
      throw newSyntaxError('Angle bracket } expected');
    }
    getToken();

    // remove temporary default options
    delete subgraph.node;
    delete subgraph.edge;
    delete subgraph.graph;
    delete subgraph.parent;

    // register at the parent graph
    if (!graph.subgraphs) {
      graph.subgraphs = [];
    }
    graph.subgraphs.push(subgraph);
  }

  return subgraph;
}

/**
 * parse an attribute statement like "node [shape=circle fontSize=16]".
 * Available keywords are 'node', 'edge', 'graph'.
 * The previous list with default attributes will be replaced
 * @param {Object} graph
 * @returns {String | null} keyword Returns the name of the parsed attribute
 *                                  (node, edge, graph), or null if nothing
 *                                  is parsed.
 */
function parseAttributeStatement(graph) {
  // attribute statements
  if (token === 'node') {
    getToken();

    // node attributes
    graph.node = parseAttributeList();
    return 'node';
  } else if (token === 'edge') {
    getToken();

    // edge attributes
    graph.edge = parseAttributeList();
    return 'edge';
  } else if (token === 'graph') {
    getToken();

    // graph attributes
    graph.graph = parseAttributeList();
    return 'graph';
  }

  return null;
}

/**
 * parse a node statement
 * @param {Object} graph
 * @param {string | number} id
 */
function parseNodeStatement(graph, id) {
  // node statement
  var node = {
    id: id
  };
  var attr = parseAttributeList();
  if (attr) {
    node.attr = attr;
  }
  addNode(graph, node);

  // edge statements
  parseEdge(graph, id);
}

/**
 * Parse an edge or a series of edges
 * @param {Object} graph
 * @param {string | number} from        Id of the from node
 */
function parseEdge(graph, from) {
  while (token === '->' || token === '--') {
    var to;
    var type = token;
    getToken();

    var subgraph = parseSubgraph(graph);
    if (subgraph) {
      to = subgraph;
    } else {
      if (tokenType != TOKENTYPE.IDENTIFIER) {
        throw newSyntaxError('Identifier or subgraph expected');
      }
      to = token;
      addNode(graph, {
        id: to
      });
      getToken();
    }

    // parse edge attributes
    var attr = parseAttributeList();

    // create edge
    var edge = createEdge(graph, from, to, type, attr);
    addEdge(graph, edge);

    from = to;
  }
}

/**
 * Parse a set with attributes,
 * for example [label="1.000", shape=solid]
 * @return {Object | null} attr
 */
function parseAttributeList() {
  var attr = null;

  // edge styles of dot and vis
  var edgeStyles = {
    'dashed': true,
    'solid': false,
    'dotted': [1, 5]
  };

  while (token === '[') {
    getToken();
    attr = {};
    while (token !== '' && token != ']') {
      if (tokenType != TOKENTYPE.IDENTIFIER) {
        throw newSyntaxError('Attribute name expected');
      }
      var name = token;

      getToken();
      if (token != '=') {
        throw newSyntaxError('Equal sign = expected');
      }
      getToken();

      if (tokenType != TOKENTYPE.IDENTIFIER) {
        throw newSyntaxError('Attribute value expected');
      }
      var value = token;

      // convert from dot style to vis
      if (name === 'style') {
        value = edgeStyles[value];
      }

      setValue(attr, name, value); // name can be a path

      getToken();
      if (token == ',') {
        getToken();
      }
    }

    if (token != ']') {
      throw newSyntaxError('Bracket ] expected');
    }
    getToken();
  }

  return attr;
}

/**
 * Create a syntax error with extra information on current token and index.
 * @param {string} message
 * @returns {SyntaxError} err
 */
function newSyntaxError(message) {
  return new SyntaxError(message + ', got "' + chop(token, 30) + '" (char ' + index + ')');
}

/**
 * Chop off text after a maximum length
 * @param {string} text
 * @param {number} maxLength
 * @returns {String}
 */
function chop(text, maxLength) {
  return text.length <= maxLength ? text : text.substr(0, 27) + '...';
}

/**
 * Execute a function fn for each pair of elements in two arrays
 * @param {Array | *} array1
 * @param {Array | *} array2
 * @param {function} fn
 */
function forEach2(array1, array2, fn) {
  if (Array.isArray(array1)) {
    array1.forEach(function (elem1) {
      if (Array.isArray(array2)) {
        array2.forEach(function (elem2) {
          fn(elem1, elem2);
        });
      } else {
        fn(elem1, array2);
      }
    });
  } else {
    if (Array.isArray(array2)) {
      array2.forEach(function (elem2) {
        fn(array1, elem2);
      });
    } else {
      fn(array1, array2);
    }
  }
}

/**
 * Set a nested property on an object
 * When nested objects are missing, they will be created.
 * For example setProp({}, 'font.color', 'red') will return {font: {color: 'red'}}
 * @param {Object} object
 * @param {string} path   A dot separated string like 'font.color'
 * @param {*} value       Value for the property
 * @return {Object} Returns the original object, allows for chaining.
 */
function setProp(object, path, value) {
  var names = path.split('.');
  var prop = names.pop();

  // traverse over the nested objects
  var obj = object;
  for (var i = 0; i < names.length; i++) {
    var name = names[i];
    if (!(name in obj)) {
      obj[name] = {};
    }
    obj = obj[name];
  }

  // set the property value
  obj[prop] = value;

  return object;
}

/**
 * Convert an object with DOT attributes to their vis.js equivalents.
 * @param {Object} attr     Object with DOT attributes
 * @param {Object} mapping
 * @return {Object}         Returns an object with vis.js attributes
 */
function convertAttr(attr, mapping) {
  var converted = {};

  for (var prop in attr) {
    if (attr.hasOwnProperty(prop)) {
      var visProp = mapping[prop];
      if (Array.isArray(visProp)) {
        visProp.forEach(function (visPropI) {
          setProp(converted, visPropI, attr[prop]);
        });
      } else if (typeof visProp === 'string') {
        setProp(converted, visProp, attr[prop]);
      } else {
        setProp(converted, prop, attr[prop]);
      }
    }
  }

  return converted;
}

/**
 * Convert a string containing a graph in DOT language into a map containing
 * with nodes and edges in the format of graph.
 * @param {string} data         Text containing a graph in DOT-notation
 * @return {Object} graphData
 */
function DOTToGraph(data) {
  // parse the DOT file
  var dotData = parseDOT(data);
  var graphData = {
    nodes: [],
    edges: [],
    options: {}
  };

  // copy the nodes
  if (dotData.nodes) {
    dotData.nodes.forEach(function (dotNode) {
      var graphNode = {
        id: dotNode.id,
        label: String(dotNode.label || dotNode.id)
      };
      merge(graphNode, convertAttr(dotNode.attr, NODE_ATTR_MAPPING));
      if (graphNode.image) {
        graphNode.shape = 'image';
      }
      graphData.nodes.push(graphNode);
    });
  }

  // copy the edges
  if (dotData.edges) {
    /**
     * Convert an edge in DOT format to an edge with VisGraph format
     * @param {Object} dotEdge
     * @returns {Object} graphEdge
     */
    var convertEdge = function convertEdge(dotEdge) {
      var graphEdge = {
        from: dotEdge.from,
        to: dotEdge.to
      };
      merge(graphEdge, convertAttr(dotEdge.attr, EDGE_ATTR_MAPPING));
      graphEdge.arrows = dotEdge.type === '->' ? 'to' : undefined;

      return graphEdge;
    };

    dotData.edges.forEach(function (dotEdge) {
      var from, to;
      if (dotEdge.from instanceof Object) {
        from = dotEdge.from.nodes;
      } else {
        from = {
          id: dotEdge.from
        };
      }

      // TODO: support for attributes 'dir' and 'arrowhead' (edge arrows)

      if (dotEdge.to instanceof Object) {
        to = dotEdge.to.nodes;
      } else {
        to = {
          id: dotEdge.to
        };
      }

      if (dotEdge.from instanceof Object && dotEdge.from.edges) {
        dotEdge.from.edges.forEach(function (subEdge) {
          var graphEdge = convertEdge(subEdge);
          graphData.edges.push(graphEdge);
        });
      }

      forEach2(from, to, function (from, to) {
        var subEdge = createEdge(graphData, from.id, to.id, dotEdge.type, dotEdge.attr);
        var graphEdge = convertEdge(subEdge);
        graphData.edges.push(graphEdge);
      });

      if (dotEdge.to instanceof Object && dotEdge.to.edges) {
        dotEdge.to.edges.forEach(function (subEdge) {
          var graphEdge = convertEdge(subEdge);
          graphData.edges.push(graphEdge);
        });
      }
    });
  }

  // copy the options
  if (dotData.attr) {
    graphData.options = dotData.attr;
  }

  return graphData;
}

// exports
exports.parseDOT = parseDOT;
exports.DOTToGraph = DOTToGraph;

/***/ }),
/* 115 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 *
 * @param {json} gephiJSON
 * @param {obj} optionsObj
 * @returns {{nodes: Array, edges: Array}}
 */
function parseGephi(gephiJSON, optionsObj) {
  var edges = [];
  var nodes = [];
  var options = {
    edges: {
      inheritColor: false
    },
    nodes: {
      fixed: false,
      parseColor: false
    }
  };

  if (optionsObj !== undefined) {
    if (optionsObj.fixed !== undefined) {
      options.nodes.fixed = optionsObj.fixed;
    }
    if (optionsObj.parseColor !== undefined) {
      options.nodes.parseColor = optionsObj.parseColor;
    }
    if (optionsObj.inheritColor !== undefined) {
      options.edges.inheritColor = optionsObj.inheritColor;
    }
  }

  var gEdges = gephiJSON.edges;
  var gNodes = gephiJSON.nodes;
  for (var i = 0; i < gEdges.length; i++) {
    var edge = {};
    var gEdge = gEdges[i];
    edge['id'] = gEdge.id;
    edge['from'] = gEdge.source;
    edge['to'] = gEdge.target;
    edge['attributes'] = gEdge.attributes;
    edge['label'] = gEdge.label;
    edge['title'] = gEdge.attributes !== undefined ? gEdge.attributes.title : undefined;
    if (gEdge['type'] === 'Directed') {
      edge['arrows'] = 'to';
    }
    //    edge['value'] = gEdge.attributes !== undefined ? gEdge.attributes.Weight : undefined;
    //    edge['width'] = edge['value'] !== undefined ? undefined : edgegEdge.size;
    if (gEdge.color && options.inheritColor === false) {
      edge['color'] = gEdge.color;
    }
    edges.push(edge);
  }

  for (var j = 0; j < gNodes.length; j++) {
    var node = {};
    var gNode = gNodes[j];
    node['id'] = gNode.id;
    node['attributes'] = gNode.attributes;
    node['x'] = gNode.x;
    node['y'] = gNode.y;
    node['label'] = gNode.label;
    node['title'] = gNode.attributes !== undefined ? gNode.attributes.title : gNode.title;
    if (options.nodes.parseColor === true) {
      node['color'] = gNode.color;
    } else {
      node['color'] = gNode.color !== undefined ? { background: gNode.color, border: gNode.color, highlight: { background: gNode.color, border: gNode.color }, hover: { background: gNode.color, border: gNode.color } } : undefined;
    }
    node['size'] = gNode.size;
    node['fixed'] = options.nodes.fixed && gNode.x !== undefined && gNode.y !== undefined;
    nodes.push(node);
  }

  return { nodes: nodes, edges: edges };
}

exports.parseGephi = parseGephi;

/***/ }),
/* 116 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
    value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _CachedImage = __webpack_require__(185);

var _CachedImage2 = _interopRequireDefault(_CachedImage);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * This callback is a callback that accepts an Image.
 * @callback ImageCallback
 * @param {Image} image
 */

/**
 * This class loads images and keeps them stored.
 *
 * @param {ImageCallback} callback
 */
var Images = function () {
    /**
     * @param {ImageCallback} callback
     */
    function Images(callback) {
        (0, _classCallCheck3["default"])(this, Images);

        this.images = {};
        this.imageBroken = {};
        this.callback = callback;
    }

    /**
     * @param {string} url                      The original Url that failed to load, if the broken image is successfully loaded it will be added to the cache using this Url as the key so that subsequent requests for this Url will return the broken image
     * @param {string} brokenUrl                Url the broken image to try and load
     * @param {Image} imageToLoadBrokenUrlOn   The image object
     */


    (0, _createClass3["default"])(Images, [{
        key: "_tryloadBrokenUrl",
        value: function _tryloadBrokenUrl(url, brokenUrl, imageToLoadBrokenUrlOn) {
            //If these parameters aren't specified then exit the function because nothing constructive can be done
            if (url === undefined || imageToLoadBrokenUrlOn === undefined) return;
            if (brokenUrl === undefined) {
                console.warn("No broken url image defined");
                return;
            }

            //Clear the old subscription to the error event and put a new in place that only handle errors in loading the brokenImageUrl
            imageToLoadBrokenUrlOn.onerror = function () {
                console.error("Could not load brokenImage:", brokenUrl);
                // cache item will contain empty image, this should be OK for default
            };

            //Set the source of the image to the brokenUrl, this is actually what kicks off the loading of the broken image
            imageToLoadBrokenUrlOn.image.src = brokenUrl;
        }

        /**
         *
         * @param {vis.Image} imageToRedrawWith
         * @private
         */

    }, {
        key: "_redrawWithImage",
        value: function _redrawWithImage(imageToRedrawWith) {
            if (this.callback) {
                this.callback(imageToRedrawWith);
            }
        }

        /**
         * @param {string} url          Url of the image
         * @param {string} brokenUrl    Url of an image to use if the url image is not found
         * @return {Image} img          The image object
         */

    }, {
        key: "load",
        value: function load(url, brokenUrl) {
            var _this = this;

            //Try and get the image from the cache, if successful then return the cached image   
            var cachedImage = this.images[url];
            if (cachedImage) return cachedImage;

            //Create a new image
            var img = new _CachedImage2["default"]();

            // Need to add to cache here, otherwise final return will spawn different copies of the same image,
            // Also, there will be multiple loads of the same image.
            this.images[url] = img;

            //Subscribe to the event that is raised if the image loads successfully 
            img.image.onload = function () {
                // Properly init the cached item and then request a redraw
                _this._fixImageCoordinates(img.image);
                img.init();
                _this._redrawWithImage(img);
            };

            //Subscribe to the event that is raised if the image fails to load
            img.image.onerror = function () {
                console.error("Could not load image:", url);
                //Try and load the image specified by the brokenUrl using
                _this._tryloadBrokenUrl(url, brokenUrl, img);
            };

            //Set the source of the image to the url, this is what actually kicks off the loading of the image
            img.image.src = url;

            //Return the new image
            return img;
        }

        /**
         * IE11 fix -- thanks dponch!
         *
         * Local helper function
         * @param {vis.Image} imageToCache
         * @private
         */

    }, {
        key: "_fixImageCoordinates",
        value: function _fixImageCoordinates(imageToCache) {
            if (imageToCache.width === 0) {
                document.body.appendChild(imageToCache);
                imageToCache.width = imageToCache.offsetWidth;
                imageToCache.height = imageToCache.offsetHeight;
                document.body.removeChild(imageToCache);
            }
        }
    }]);
    return Images;
}();

exports["default"] = Images;

/***/ }),
/* 117 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _slicedToArray2 = __webpack_require__(30);

var _slicedToArray3 = _interopRequireDefault(_slicedToArray2);

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var ComponentUtil = __webpack_require__(48)['default'];
var LabelSplitter = __webpack_require__(191)['default'];

/**
 * @typedef {'bold'|'ital'|'boldital'|'mono'|'normal'} MultiFontStyle
 *
 * The allowed specifiers of multi-fonts.
 */

/**
 * @typedef {{color:string, size:number, face:string, mod:string, vadjust:number}} MultiFontOptions
 *
 * The full set of options of a given multi-font.
 */

/**
 * @typedef {Array.<object>} Pile
 *
 * Sequence of option objects, the order is significant.
 * The sequence is used to determine the value of a given option.
 *
 * Usage principles:
 *
 *  - All search is done in the sequence of the pile.
 *  - As soon as a value is found, the searching stops.
 *  - prototypes are totally ignored. The idea is to add option objects used as prototypes
 *    to the pile, in the correct order.
 */

/**
 * List of special styles for multi-fonts
 * @private
 */
var multiFontStyle = ['bold', 'ital', 'boldital', 'mono'];

/**
 * A Label to be used for Nodes or Edges.
 */

var Label = function () {

  /**
   * @param {Object} body
   * @param {Object} options
   * @param {boolean} [edgelabel=false]
   */
  function Label(body, options) {
    var edgelabel = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
    (0, _classCallCheck3['default'])(this, Label);

    this.body = body;
    this.pointToSelf = false;
    this.baseSize = undefined;
    this.fontOptions = {}; // instance variable containing the *instance-local* font options
    this.setOptions(options);
    this.size = { top: 0, left: 0, width: 0, height: 0, yLine: 0 };
    this.isEdgeLabel = edgelabel;
  }

  /**
   * @param {Object} options the options of the parent Node-instance
   */


  (0, _createClass3['default'])(Label, [{
    key: 'setOptions',
    value: function setOptions(options) {
      this.elementOptions = options; // Reference to the options of the parent Node-instance 

      this.initFontOptions(options.font);

      if (ComponentUtil.isValidLabel(options.label)) {
        this.labelDirty = true;
      } else {
        // Bad label! Change the option value to prevent bad stuff happening
        options.label = '';
      }

      if (options.font !== undefined && options.font !== null) {
        // font options can be deleted at various levels
        if (typeof options.font === 'string') {
          this.baseSize = this.fontOptions.size;
        } else if ((0, _typeof3['default'])(options.font) === 'object') {
          var size = options.font.size;

          if (size !== undefined) {
            this.baseSize = size;
          }
        }
      }
    }

    /**
     * Init the font Options structure.
     *
     * Member fontOptions serves as an accumulator for the current font options.
     * As such, it needs to be completely separated from the node options.
     *
     * @param {Object} newFontOptions the new font options to process
     * @private
     */

  }, {
    key: 'initFontOptions',
    value: function initFontOptions(newFontOptions) {
      var _this = this;

      // Prepare the multi-font option objects.
      // These will be filled in propagateFonts(), if required
      util.forEach(multiFontStyle, function (style) {
        _this.fontOptions[style] = {};
      });

      // Handle shorthand option, if present
      if (Label.parseFontString(this.fontOptions, newFontOptions)) {
        this.fontOptions.vadjust = 0;
        return;
      }

      // Copy over the non-multifont options, if specified
      util.forEach(newFontOptions, function (prop, n) {
        if (prop !== undefined && prop !== null && (typeof prop === 'undefined' ? 'undefined' : (0, _typeof3['default'])(prop)) !== 'object') {
          _this.fontOptions[n] = prop;
        }
      });
    }

    /**
     * If in-variable is a string, parse it as a font specifier.
     *
     * Note that following is not done here and have to be done after the call:
     * - No number conversion (size)
     * - Not all font options are set (vadjust, mod)
     *
     * @param {Object} outOptions  out-parameter, object in which to store the parse results (if any)
     * @param {Object} inOptions  font options to parse
     * @return {boolean} true if font parsed as string, false otherwise
     * @static
     */

  }, {
    key: 'constrain',


    /**
     * Set the width and height constraints based on 'nearest' value
     *
     * @param {Array} pile array of option objects to consider
     * @returns {object} the actual constraint values to use
     * @private
     */
    value: function constrain(pile) {
      // NOTE: constrainWidth and  constrainHeight never set!
      // NOTE: for edge labels, only 'maxWdt' set
      // Node labels can set all the fields
      var fontOptions = {
        constrainWidth: false,
        maxWdt: -1,
        minWdt: -1,
        constrainHeight: false,
        minHgt: -1,
        valign: 'middle'
      };

      var widthConstraint = util.topMost(pile, 'widthConstraint');
      if (typeof widthConstraint === 'number') {
        fontOptions.maxWdt = Number(widthConstraint);
        fontOptions.minWdt = Number(widthConstraint);
      } else if ((typeof widthConstraint === 'undefined' ? 'undefined' : (0, _typeof3['default'])(widthConstraint)) === 'object') {
        var widthConstraintMaximum = util.topMost(pile, ['widthConstraint', 'maximum']);
        if (typeof widthConstraintMaximum === 'number') {
          fontOptions.maxWdt = Number(widthConstraintMaximum);
        }
        var widthConstraintMinimum = util.topMost(pile, ['widthConstraint', 'minimum']);
        if (typeof widthConstraintMinimum === 'number') {
          fontOptions.minWdt = Number(widthConstraintMinimum);
        }
      }

      var heightConstraint = util.topMost(pile, 'heightConstraint');
      if (typeof heightConstraint === 'number') {
        fontOptions.minHgt = Number(heightConstraint);
      } else if ((typeof heightConstraint === 'undefined' ? 'undefined' : (0, _typeof3['default'])(heightConstraint)) === 'object') {
        var heightConstraintMinimum = util.topMost(pile, ['heightConstraint', 'minimum']);
        if (typeof heightConstraintMinimum === 'number') {
          fontOptions.minHgt = Number(heightConstraintMinimum);
        }
        var heightConstraintValign = util.topMost(pile, ['heightConstraint', 'valign']);
        if (typeof heightConstraintValign === 'string') {
          if (heightConstraintValign === 'top' || heightConstraintValign === 'bottom') {
            fontOptions.valign = heightConstraintValign;
          }
        }
      }

      return fontOptions;
    }

    /**
     * Set options and update internal state
     *
     * @param {Object} options  options to set
     * @param {Array}  pile     array of option objects to consider for option 'chosen'
     */

  }, {
    key: 'update',
    value: function update(options, pile) {
      this.setOptions(options, true);
      this.propagateFonts(pile);
      util.deepExtend(this.fontOptions, this.constrain(pile));
      this.fontOptions.chooser = ComponentUtil.choosify('label', pile);
    }

    /**
     * When margins are set in an element, adjust sizes is called to remove them
     * from the width/height constraints. This must be done prior to label sizing.
     *
     * @param {{top: number, right: number, bottom: number, left: number}} margins
     */

  }, {
    key: 'adjustSizes',
    value: function adjustSizes(margins) {
      var widthBias = margins ? margins.right + margins.left : 0;
      if (this.fontOptions.constrainWidth) {
        this.fontOptions.maxWdt -= widthBias;
        this.fontOptions.minWdt -= widthBias;
      }
      var heightBias = margins ? margins.top + margins.bottom : 0;
      if (this.fontOptions.constrainHeight) {
        this.fontOptions.minHgt -= heightBias;
      }
    }

    /////////////////////////////////////////////////////////
    // Methods for handling options piles
    // Eventually, these will be moved to a separate class
    /////////////////////////////////////////////////////////

    /**
     * Add the font members of the passed list of option objects to the pile.
     *
     * @param {Pile} dstPile  pile of option objects add to 
     * @param {Pile} srcPile  pile of option objects to take font options from
     * @private
     */

  }, {
    key: 'addFontOptionsToPile',
    value: function addFontOptionsToPile(dstPile, srcPile) {
      for (var i = 0; i < srcPile.length; ++i) {
        this.addFontToPile(dstPile, srcPile[i]);
      }
    }

    /**
     * Add given font option object to the list of objects (the 'pile') to consider for determining
     * multi-font option values.
     *
     * @param {Pile} pile  pile of option objects to use
     * @param {object} options  instance to add to pile
     * @private
     */

  }, {
    key: 'addFontToPile',
    value: function addFontToPile(pile, options) {
      if (options === undefined) return;
      if (options.font === undefined || options.font === null) return;

      var item = options.font;
      pile.push(item);
    }

    /**
     * Collect all own-property values from the font pile that aren't multi-font option objectss.
     *
     * @param {Pile} pile  pile of option objects to use
     * @returns {object} object with all current own basic font properties
     * @private
     */

  }, {
    key: 'getBasicOptions',
    value: function getBasicOptions(pile) {
      var ret = {};

      // Scans the whole pile to get all options present
      for (var n = 0; n < pile.length; ++n) {
        var fontOptions = pile[n];

        // Convert shorthand if necessary
        var tmpShorthand = {};
        if (Label.parseFontString(tmpShorthand, fontOptions)) {
          fontOptions = tmpShorthand;
        }

        util.forEach(fontOptions, function (opt, name) {
          if (opt === undefined) return; // multi-font option need not be present 
          if (ret.hasOwnProperty(name)) return; // Keep first value we encounter

          if (multiFontStyle.indexOf(name) !== -1) {
            // Skip multi-font properties but we do need the structure
            ret[name] = {};
          } else {
            ret[name] = opt;
          }
        });
      }

      return ret;
    }

    /**
     * Return the value for given option for the given multi-font.
     *
     * All available option objects are trawled in the set order to construct the option values.
     *
     * ---------------------------------------------------------------------
     * ## Traversal of pile for multi-fonts
     *
     * The determination of multi-font option values is a special case, because any values not
     * present in the multi-font options should by definition be taken from the main font options,
     * i.e. from the current 'parent' object of the multi-font option.
     *
     * ### Search order for multi-fonts
     *
     * 'bold' used as example:
     *
     *   - search in option group 'bold' in local properties
     *   - search in main font option group in local properties
     *
     * ---------------------------------------------------------------------
     *
     * @param {Pile} pile  pile of option objects to use
     * @param {MultiFontStyle} multiName sub path for the multi-font
     * @param {string} option  the option to search for, for the given multi-font
     * @returns {string|number} the value for the given option
     * @private
     */

  }, {
    key: 'getFontOption',
    value: function getFontOption(pile, multiName, option) {
      var multiFont = void 0;

      // Search multi font in local properties
      for (var n = 0; n < pile.length; ++n) {
        var fontOptions = pile[n];

        if (fontOptions.hasOwnProperty(multiName)) {
          multiFont = fontOptions[multiName];
          if (multiFont === undefined || multiFont === null) continue;

          // Convert shorthand if necessary
          // TODO: inefficient to do this conversion every time; find a better way.
          var tmpShorthand = {};
          if (Label.parseFontString(tmpShorthand, multiFont)) {
            multiFont = tmpShorthand;
          }

          if (multiFont.hasOwnProperty(option)) {
            return multiFont[option];
          }
        }
      }

      // Option is not mentioned in the multi font options; take it from the parent font options.
      // These have already been converted with getBasicOptions(), so use the converted values.
      if (this.fontOptions.hasOwnProperty(option)) {
        return this.fontOptions[option];
      }

      // A value **must** be found; you should never get here.
      throw new Error("Did not find value for multi-font for property: '" + option + "'");
    }

    /**
     * Return all options values for the given multi-font.
     *
     * All available option objects are trawled in the set order to construct the option values.
     *
     * @param {Pile} pile  pile of option objects to use
     * @param {MultiFontStyle} multiName sub path for the mod-font
     * @returns {MultiFontOptions}
     * @private
     */

  }, {
    key: 'getFontOptions',
    value: function getFontOptions(pile, multiName) {
      var result = {};
      var optionNames = ['color', 'size', 'face', 'mod', 'vadjust']; // List of allowed options per multi-font

      for (var i = 0; i < optionNames.length; ++i) {
        var mod = optionNames[i];
        result[mod] = this.getFontOption(pile, multiName, mod);
      }

      return result;
    }

    /////////////////////////////////////////////////////////
    // End methods for handling options piles
    /////////////////////////////////////////////////////////


    /**
     * Collapse the font options for the multi-font to single objects, from
     * the chain of option objects passed (the 'pile').
     *
     * @param {Pile} pile  sequence of option objects to consider.
     *                     First item in list assumed to be the newly set options.
     */

  }, {
    key: 'propagateFonts',
    value: function propagateFonts(pile) {
      var _this2 = this;

      var fontPile = []; // sequence of font objects to consider, order important

      // Note that this.elementOptions is not used here.
      this.addFontOptionsToPile(fontPile, pile);
      this.fontOptions = this.getBasicOptions(fontPile);

      // We set multifont values even if multi === false, for consistency (things break otherwise)

      var _loop = function _loop(i) {
        var mod = multiFontStyle[i];
        var modOptions = _this2.fontOptions[mod];
        var tmpMultiFontOptions = _this2.getFontOptions(fontPile, mod);

        // Copy over found values
        util.forEach(tmpMultiFontOptions, function (option, n) {
          modOptions[n] = option;
        });

        modOptions.size = Number(modOptions.size);
        modOptions.vadjust = Number(modOptions.vadjust);
      };

      for (var i = 0; i < multiFontStyle.length; ++i) {
        _loop(i);
      }
    }

    /**
     * Main function. This is called from anything that wants to draw a label.
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x
     * @param {number} y
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {string} [baseline='middle']
     */

  }, {
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover) {
      var baseline = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 'middle';

      // if no label, return
      if (this.elementOptions.label === undefined) return;

      // check if we have to render the label
      var viewFontSize = this.fontOptions.size * this.body.view.scale;
      if (this.elementOptions.label && viewFontSize < this.elementOptions.scaling.label.drawThreshold - 1) return;

      // This ensures that there will not be HUGE letters on screen
      // by setting an upper limit on the visible text size (regardless of zoomLevel)
      if (viewFontSize >= this.elementOptions.scaling.label.maxVisible) {
        viewFontSize = Number(this.elementOptions.scaling.label.maxVisible) / this.body.view.scale;
      }

      // update the size cache if required
      this.calculateLabelSize(ctx, selected, hover, x, y, baseline);
      this._drawBackground(ctx);
      this._drawText(ctx, x, this.size.yLine, baseline, viewFontSize);
    }

    /**
     * Draws the label background
     * @param {CanvasRenderingContext2D} ctx
     * @private
     */

  }, {
    key: '_drawBackground',
    value: function _drawBackground(ctx) {
      if (this.fontOptions.background !== undefined && this.fontOptions.background !== "none") {
        ctx.fillStyle = this.fontOptions.background;
        var size = this.getSize();
        ctx.fillRect(size.left, size.top, size.width, size.height);
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x
     * @param {number} y
     * @param {string} [baseline='middle']
     * @param {number} viewFontSize 
     * @private
     */

  }, {
    key: '_drawText',
    value: function _drawText(ctx, x, y) {
      var baseline = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 'middle';
      var viewFontSize = arguments[4];

      var _setAlignment2 = this._setAlignment(ctx, x, y, baseline);

      var _setAlignment3 = (0, _slicedToArray3['default'])(_setAlignment2, 2);

      x = _setAlignment3[0];
      y = _setAlignment3[1];


      ctx.textAlign = 'left';
      x = x - this.size.width / 2; // Shift label 1/2-distance to the left
      if (this.fontOptions.valign && this.size.height > this.size.labelHeight) {
        if (this.fontOptions.valign === 'top') {
          y -= (this.size.height - this.size.labelHeight) / 2;
        }
        if (this.fontOptions.valign === 'bottom') {
          y += (this.size.height - this.size.labelHeight) / 2;
        }
      }

      // draw the text
      for (var i = 0; i < this.lineCount; i++) {
        var line = this.lines[i];
        if (line && line.blocks) {
          var width = 0;
          if (this.isEdgeLabel || this.fontOptions.align === 'center') {
            width += (this.size.width - line.width) / 2;
          } else if (this.fontOptions.align === 'right') {
            width += this.size.width - line.width;
          }
          for (var j = 0; j < line.blocks.length; j++) {
            var block = line.blocks[j];
            ctx.font = block.font;

            var _getColor2 = this._getColor(block.color, viewFontSize, block.strokeColor),
                _getColor3 = (0, _slicedToArray3['default'])(_getColor2, 2),
                fontColor = _getColor3[0],
                strokeColor = _getColor3[1];

            if (block.strokeWidth > 0) {
              ctx.lineWidth = block.strokeWidth;
              ctx.strokeStyle = strokeColor;
              ctx.lineJoin = 'round';
            }
            ctx.fillStyle = fontColor;

            if (block.strokeWidth > 0) {
              ctx.strokeText(block.text, x + width, y + block.vadjust);
            }
            ctx.fillText(block.text, x + width, y + block.vadjust);
            width += block.width;
          }
          y += line.height;
        }
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x
     * @param {number} y
     * @param {string} baseline
     * @returns {Array.<number>}
     * @private
     */

  }, {
    key: '_setAlignment',
    value: function _setAlignment(ctx, x, y, baseline) {
      // check for label alignment (for edges)
      // TODO: make alignment for nodes
      if (this.isEdgeLabel && this.fontOptions.align !== 'horizontal' && this.pointToSelf === false) {
        x = 0;
        y = 0;

        var lineMargin = 2;
        if (this.fontOptions.align === 'top') {
          ctx.textBaseline = 'alphabetic';
          y -= 2 * lineMargin; // distance from edge, required because we use alphabetic. Alphabetic has less difference between browsers
        } else if (this.fontOptions.align === 'bottom') {
          ctx.textBaseline = 'hanging';
          y += 2 * lineMargin; // distance from edge, required because we use hanging. Hanging has less difference between browsers
        } else {
          ctx.textBaseline = 'middle';
        }
      } else {
        ctx.textBaseline = baseline;
      }
      return [x, y];
    }

    /**
     * fade in when relative scale is between threshold and threshold - 1.
     * If the relative scale would be smaller than threshold -1 the draw function would have returned before coming here.
     *
     * @param {string} color  The font color to use
     * @param {number} viewFontSize
     * @param {string} initialStrokeColor
     * @returns {Array.<string>} An array containing the font color and stroke color
     * @private
     */

  }, {
    key: '_getColor',
    value: function _getColor(color, viewFontSize, initialStrokeColor) {
      var fontColor = color || '#000000';
      var strokeColor = initialStrokeColor || '#ffffff';
      if (viewFontSize <= this.elementOptions.scaling.label.drawThreshold) {
        var opacity = Math.max(0, Math.min(1, 1 - (this.elementOptions.scaling.label.drawThreshold - viewFontSize)));
        fontColor = util.overrideOpacity(fontColor, opacity);
        strokeColor = util.overrideOpacity(strokeColor, opacity);
      }
      return [fontColor, strokeColor];
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     * @returns {{width: number, height: number}}
     */

  }, {
    key: 'getTextSize',
    value: function getTextSize(ctx) {
      var selected = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      var hover = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

      this._processLabel(ctx, selected, hover);
      return {
        width: this.size.width,
        height: this.size.height,
        lineCount: this.lineCount
      };
    }

    /**
     * Get the current dimensions of the label
     *
     * @return {rect}
     */

  }, {
    key: 'getSize',
    value: function getSize() {
      var lineMargin = 2;
      var x = this.size.left; // default values which might be overridden below
      var y = this.size.top - 0.5 * lineMargin; // idem

      if (this.isEdgeLabel) {
        var x2 = -this.size.width * 0.5;

        switch (this.fontOptions.align) {
          case 'middle':
            x = x2;
            y = -this.size.height * 0.5;
            break;
          case 'top':
            x = x2;
            y = -(this.size.height + lineMargin);
            break;
          case 'bottom':
            x = x2;
            y = lineMargin;
            break;
        }
      }

      var ret = {
        left: x,
        top: y,
        width: this.size.width,
        height: this.size.height
      };

      return ret;
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {number} [x=0]
     * @param {number} [y=0]
     * @param {'middle'|'hanging'} [baseline='middle']
     */

  }, {
    key: 'calculateLabelSize',
    value: function calculateLabelSize(ctx, selected, hover) {
      var x = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
      var y = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0;
      var baseline = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 'middle';

      this._processLabel(ctx, selected, hover);
      this.size.left = x - this.size.width * 0.5;
      this.size.top = y - this.size.height * 0.5;
      this.size.yLine = y + (1 - this.lineCount) * 0.5 * this.fontOptions.size;
      if (baseline === "hanging") {
        this.size.top += 0.5 * this.fontOptions.size;
        this.size.top += 4; // distance from node, required because we use hanging. Hanging has less difference between browsers
        this.size.yLine += 4; // distance from node
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {string} mod
     * @returns {{color, size, face, mod, vadjust, strokeWidth: *, strokeColor: (*|string|allOptions.edges.font.strokeColor|{string}|allOptions.nodes.font.strokeColor|Array)}}
     */

  }, {
    key: 'getFormattingValues',
    value: function getFormattingValues(ctx, selected, hover, mod) {
      var getValue = function getValue(fontOptions, mod, option) {
        if (mod === "normal") {
          if (option === 'mod') return "";
          return fontOptions[option];
        }

        if (fontOptions[mod][option] !== undefined) {
          // Grumbl leaving out test on undefined equals false for "" 
          return fontOptions[mod][option];
        } else {
          // Take from parent font option
          return fontOptions[option];
        }
      };

      var values = {
        color: getValue(this.fontOptions, mod, 'color'),
        size: getValue(this.fontOptions, mod, 'size'),
        face: getValue(this.fontOptions, mod, 'face'),
        mod: getValue(this.fontOptions, mod, 'mod'),
        vadjust: getValue(this.fontOptions, mod, 'vadjust'),
        strokeWidth: this.fontOptions.strokeWidth,
        strokeColor: this.fontOptions.strokeColor
      };
      if (selected || hover) {
        if (mod === "normal" && this.fontOptions.chooser === true && this.elementOptions.labelHighlightBold) {
          values.mod = 'bold';
        } else {
          if (typeof this.fontOptions.chooser === 'function') {
            this.fontOptions.chooser(values, this.elementOptions.id, selected, hover);
          }
        }
      }

      var fontString = "";
      if (values.mod !== undefined && values.mod !== "") {
        // safeguard for undefined - this happened
        fontString += values.mod + " ";
      }
      fontString += values.size + "px " + values.face;

      ctx.font = fontString.replace(/"/g, "");
      values.font = ctx.font;
      values.height = values.size;
      return values;
    }

    /**
     *
     * @param {boolean} selected
     * @param {boolean} hover
     * @returns {boolean}
     */

  }, {
    key: 'differentState',
    value: function differentState(selected, hover) {
      return selected !== this.selectedState || hover !== this.hoverState;
    }

    /**
     * This explodes the passed text into lines and determines the width, height and number of lines.
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {string} inText  the text to explode
     * @returns {{width, height, lines}|*}
     * @private
     */

  }, {
    key: '_processLabelText',
    value: function _processLabelText(ctx, selected, hover, inText) {
      var splitter = new LabelSplitter(ctx, this, selected, hover);
      return splitter.process(inText);
    }

    /**
     * This explodes the label string into lines and sets the width, height and number of lines.
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     * @private
     */

  }, {
    key: '_processLabel',
    value: function _processLabel(ctx, selected, hover) {

      if (this.labelDirty === false && !this.differentState(selected, hover)) return;

      var state = this._processLabelText(ctx, selected, hover, this.elementOptions.label);

      if (this.fontOptions.minWdt > 0 && state.width < this.fontOptions.minWdt) {
        state.width = this.fontOptions.minWdt;
      }

      this.size.labelHeight = state.height;
      if (this.fontOptions.minHgt > 0 && state.height < this.fontOptions.minHgt) {
        state.height = this.fontOptions.minHgt;
      }

      this.lines = state.lines;
      this.lineCount = state.lines.length;
      this.size.width = state.width;
      this.size.height = state.height;
      this.selectedState = selected;
      this.hoverState = hover;

      this.labelDirty = false;
    }

    /**
     * Check if this label is visible
     *
     * @return {boolean} true if this label will be show, false otherwise
     */

  }, {
    key: 'visible',
    value: function visible() {
      if (this.size.width === 0 || this.size.height === 0 || this.elementOptions.label === undefined) {
        return false; // nothing to display
      }

      var viewFontSize = this.fontOptions.size * this.body.view.scale;
      if (viewFontSize < this.elementOptions.scaling.label.drawThreshold - 1) {
        return false; // Too small or too far away to show
      }

      return true;
    }
  }], [{
    key: 'parseFontString',
    value: function parseFontString(outOptions, inOptions) {
      if (!inOptions || typeof inOptions !== 'string') return false;

      var newOptionsArray = inOptions.split(" ");

      outOptions.size = newOptionsArray[0].replace("px", '');
      outOptions.face = newOptionsArray[1];
      outOptions.color = newOptionsArray[2];

      return true;
    }
  }]);
  return Label;
}();

exports['default'] = Label;

/***/ }),
/* 118 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _slicedToArray2 = __webpack_require__(30);

var _slicedToArray3 = _interopRequireDefault(_slicedToArray2);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

var util = __webpack_require__(2);
var EndPoints = __webpack_require__(119)["default"];

/**
 * The Base Class for all edges.
 *
 */

var EdgeBase = function () {
  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function EdgeBase(options, body, labelModule) {
    (0, _classCallCheck3["default"])(this, EdgeBase);

    this.body = body;
    this.labelModule = labelModule;
    this.options = {};
    this.setOptions(options);
    this.colorDirty = true;
    this.color = {};
    this.selectionWidth = 2;
    this.hoverWidth = 1.5;
    this.fromPoint = this.from;
    this.toPoint = this.to;
  }

  /**
   * Connects a node to itself
   */


  (0, _createClass3["default"])(EdgeBase, [{
    key: "connect",
    value: function connect() {
      this.from = this.body.nodes[this.options.from];
      this.to = this.body.nodes[this.options.to];
    }

    /**
     *
     * @returns {boolean} always false
     */

  }, {
    key: "cleanup",
    value: function cleanup() {
      return false;
    }

    /**
     *
     * @param {Object} options
     */

  }, {
    key: "setOptions",
    value: function setOptions(options) {
      this.options = options;
      this.from = this.body.nodes[this.options.from];
      this.to = this.body.nodes[this.options.to];
      this.id = this.options.id;
    }

    /**
     * Redraw a edge as a line
     * Draw this edge in the given canvas
     * The 2d context of a HTML canvas can be retrieved by canvas.getContext("2d");
     *
     * @param {CanvasRenderingContext2D}   ctx
     * @param {Array} values
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {Node} viaNode
     * @private
     */

  }, {
    key: "drawLine",
    value: function drawLine(ctx, values, selected, hover, viaNode) {
      // set style
      ctx.strokeStyle = this.getColor(ctx, values, selected, hover);
      ctx.lineWidth = values.width;

      if (values.dashes !== false) {
        this._drawDashedLine(ctx, values, viaNode);
      } else {
        this._drawLine(ctx, values, viaNode);
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D}   ctx
     * @param {Array} values
     * @param {Node} viaNode
     * @param {{x: number, y: number}} [fromPoint]
     * @param {{x: number, y: number}} [toPoint]
     * @private
     */

  }, {
    key: "_drawLine",
    value: function _drawLine(ctx, values, viaNode, fromPoint, toPoint) {
      if (this.from != this.to) {
        // draw line
        this._line(ctx, values, viaNode, fromPoint, toPoint);
      } else {
        var _getCircleData2 = this._getCircleData(ctx),
            _getCircleData3 = (0, _slicedToArray3["default"])(_getCircleData2, 3),
            x = _getCircleData3[0],
            y = _getCircleData3[1],
            radius = _getCircleData3[2];

        this._circle(ctx, values, x, y, radius);
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {Array} values
     * @param {Node} viaNode
     * @param {{x: number, y: number}} [fromPoint]  TODO: Remove in next major release
     * @param {{x: number, y: number}} [toPoint]    TODO: Remove in next major release
     * @private
     */

  }, {
    key: "_drawDashedLine",
    value: function _drawDashedLine(ctx, values, viaNode, fromPoint, toPoint) {
      // eslint-disable-line no-unused-vars
      ctx.lineCap = 'round';
      var pattern = [5, 5];
      if (Array.isArray(values.dashes) === true) {
        pattern = values.dashes;
      }

      // only firefox and chrome support this method, else we use the legacy one.
      if (ctx.setLineDash !== undefined) {
        ctx.save();

        // set dash settings for chrome or firefox
        ctx.setLineDash(pattern);
        ctx.lineDashOffset = 0;

        // draw the line
        if (this.from != this.to) {
          // draw line
          this._line(ctx, values, viaNode);
        } else {
          var _getCircleData4 = this._getCircleData(ctx),
              _getCircleData5 = (0, _slicedToArray3["default"])(_getCircleData4, 3),
              x = _getCircleData5[0],
              y = _getCircleData5[1],
              radius = _getCircleData5[2];

          this._circle(ctx, values, x, y, radius);
        }

        // restore the dash settings.
        ctx.setLineDash([0]);
        ctx.lineDashOffset = 0;
        ctx.restore();
      } else {
        // unsupporting smooth lines
        if (this.from != this.to) {
          // draw line
          ctx.dashedLine(this.from.x, this.from.y, this.to.x, this.to.y, pattern);
        } else {
          var _getCircleData6 = this._getCircleData(ctx),
              _getCircleData7 = (0, _slicedToArray3["default"])(_getCircleData6, 3),
              _x = _getCircleData7[0],
              _y = _getCircleData7[1],
              _radius = _getCircleData7[2];

          this._circle(ctx, values, _x, _y, _radius);
        }
        // draw shadow if enabled
        this.enableShadow(ctx, values);

        ctx.stroke();

        // disable shadows for other elements.
        this.disableShadow(ctx, values);
      }
    }

    /**
     *
     * @param {Node} nearNode
     * @param {CanvasRenderingContext2D} ctx
     * @param {Object} options
     * @returns {{x: number, y: number}}
     */

  }, {
    key: "findBorderPosition",
    value: function findBorderPosition(nearNode, ctx, options) {
      if (this.from != this.to) {
        return this._findBorderPosition(nearNode, ctx, options);
      } else {
        return this._findBorderPositionCircle(nearNode, ctx, options);
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @returns {{from: ({x: number, y: number, t: number}|*), to: ({x: number, y: number, t: number}|*)}}
     */

  }, {
    key: "findBorderPositions",
    value: function findBorderPositions(ctx) {
      var from = {};
      var to = {};
      if (this.from != this.to) {
        from = this._findBorderPosition(this.from, ctx);
        to = this._findBorderPosition(this.to, ctx);
      } else {
        var _getCircleData$slice = this._getCircleData(ctx).slice(0, 2),
            _getCircleData$slice2 = (0, _slicedToArray3["default"])(_getCircleData$slice, 2),
            x = _getCircleData$slice2[0],
            y = _getCircleData$slice2[1];

        from = this._findBorderPositionCircle(this.from, ctx, { x: x, y: y, low: 0.25, high: 0.6, direction: -1 });
        to = this._findBorderPositionCircle(this.from, ctx, { x: x, y: y, low: 0.6, high: 0.8, direction: 1 });
      }
      return { from: from, to: to };
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @returns {Array.<number>} x, y, radius
     * @private
     */

  }, {
    key: "_getCircleData",
    value: function _getCircleData(ctx) {
      var x = void 0,
          y = void 0;
      var node = this.from;
      var radius = this.options.selfReferenceSize;

      if (ctx !== undefined) {
        if (node.shape.width === undefined) {
          node.shape.resize(ctx);
        }
      }

      // get circle coordinates
      if (node.shape.width > node.shape.height) {
        x = node.x + node.shape.width * 0.5;
        y = node.y - radius;
      } else {
        x = node.x + radius;
        y = node.y - node.shape.height * 0.5;
      }
      return [x, y, radius];
    }

    /**
     * Get a point on a circle
     * @param {number} x
     * @param {number} y
     * @param {number} radius
     * @param {number} percentage - Value between 0 (line start) and 1 (line end)
     * @return {Object} point
     * @private
     */

  }, {
    key: "_pointOnCircle",
    value: function _pointOnCircle(x, y, radius, percentage) {
      var angle = percentage * 2 * Math.PI;
      return {
        x: x + radius * Math.cos(angle),
        y: y - radius * Math.sin(angle)
      };
    }

    /**
     * This function uses binary search to look for the point where the circle crosses the border of the node.
     * @param {Node} node
     * @param {CanvasRenderingContext2D} ctx
     * @param {Object} options
     * @returns {*}
     * @private
     */

  }, {
    key: "_findBorderPositionCircle",
    value: function _findBorderPositionCircle(node, ctx, options) {
      var x = options.x;
      var y = options.y;
      var low = options.low;
      var high = options.high;
      var direction = options.direction;

      var maxIterations = 10;
      var iteration = 0;
      var radius = this.options.selfReferenceSize;
      var pos = void 0,
          angle = void 0,
          distanceToBorder = void 0,
          distanceToPoint = void 0,
          difference = void 0;
      var threshold = 0.05;
      var middle = (low + high) * 0.5;

      while (low <= high && iteration < maxIterations) {
        middle = (low + high) * 0.5;

        pos = this._pointOnCircle(x, y, radius, middle);
        angle = Math.atan2(node.y - pos.y, node.x - pos.x);
        distanceToBorder = node.distanceToBorder(ctx, angle);
        distanceToPoint = Math.sqrt(Math.pow(pos.x - node.x, 2) + Math.pow(pos.y - node.y, 2));
        difference = distanceToBorder - distanceToPoint;
        if (Math.abs(difference) < threshold) {
          break; // found
        } else if (difference > 0) {
          // distance to nodes is larger than distance to border --> t needs to be bigger if we're looking at the to node.
          if (direction > 0) {
            low = middle;
          } else {
            high = middle;
          }
        } else {
          if (direction > 0) {
            high = middle;
          } else {
            low = middle;
          }
        }
        iteration++;
      }
      pos.t = middle;

      return pos;
    }

    /**
     * Get the line width of the edge. Depends on width and whether one of the
     * connected nodes is selected.
     * @param {boolean} selected
     * @param {boolean} hover
     * @returns {number} width
     * @private
     */

  }, {
    key: "getLineWidth",
    value: function getLineWidth(selected, hover) {
      if (selected === true) {
        return Math.max(this.selectionWidth, 0.3 / this.body.view.scale);
      } else {
        if (hover === true) {
          return Math.max(this.hoverWidth, 0.3 / this.body.view.scale);
        } else {
          return Math.max(this.options.width, 0.3 / this.body.view.scale);
        }
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     * @param {boolean} selected - Unused
     * @param {boolean} hover - Unused
     * @returns {string}
     */

  }, {
    key: "getColor",
    value: function getColor(ctx, values, selected, hover) {
      // eslint-disable-line no-unused-vars
      if (values.inheritsColor !== false) {
        // when this is a loop edge, just use the 'from' method
        if (values.inheritsColor === 'both' && this.from.id !== this.to.id) {
          var grd = ctx.createLinearGradient(this.from.x, this.from.y, this.to.x, this.to.y);
          var fromColor = void 0,
              toColor = void 0;
          fromColor = this.from.options.color.highlight.border;
          toColor = this.to.options.color.highlight.border;

          if (this.from.selected === false && this.to.selected === false) {
            fromColor = util.overrideOpacity(this.from.options.color.border, values.opacity);
            toColor = util.overrideOpacity(this.to.options.color.border, values.opacity);
          } else if (this.from.selected === true && this.to.selected === false) {
            toColor = this.to.options.color.border;
          } else if (this.from.selected === false && this.to.selected === true) {
            fromColor = this.from.options.color.border;
          }
          grd.addColorStop(0, fromColor);
          grd.addColorStop(1, toColor);

          // -------------------- this returns -------------------- //
          return grd;
        }

        if (values.inheritsColor === "to") {
          return util.overrideOpacity(this.to.options.color.border, values.opacity);
        } else {
          // "from"
          return util.overrideOpacity(this.from.options.color.border, values.opacity);
        }
      } else {
        return util.overrideOpacity(values.color, values.opacity);
      }
    }

    /**
     * Draw a line from a node to itself, a circle
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {Array} values
     * @param {number} x
     * @param {number} y
     * @param {number} radius
     * @private
     */

  }, {
    key: "_circle",
    value: function _circle(ctx, values, x, y, radius) {
      // draw shadow if enabled
      this.enableShadow(ctx, values);

      // draw a circle
      ctx.beginPath();
      ctx.arc(x, y, radius, 0, 2 * Math.PI, false);
      ctx.stroke();

      // disable shadows for other elements.
      this.disableShadow(ctx, values);
    }

    /**
     * Calculate the distance between a point (x3,y3) and a line segment from (x1,y1) to (x2,y2).
     * (x3,y3) is the point.
     *
     * http://stackoverflow.com/questions/849211/shortest-distancae-between-a-point-and-a-line-segment
     *
     * @param {number} x1
     * @param {number} y1
     * @param {number} x2
     * @param {number} y2
     * @param {number} x3
     * @param {number} y3
     * @param {Node} via
     * @param {Array} values
     * @returns {number}
     */

  }, {
    key: "getDistanceToEdge",
    value: function getDistanceToEdge(x1, y1, x2, y2, x3, y3, via, values) {
      // eslint-disable-line no-unused-vars
      var returnValue = 0;
      if (this.from != this.to) {
        returnValue = this._getDistanceToEdge(x1, y1, x2, y2, x3, y3, via);
      } else {
        var _getCircleData8 = this._getCircleData(undefined),
            _getCircleData9 = (0, _slicedToArray3["default"])(_getCircleData8, 3),
            x = _getCircleData9[0],
            y = _getCircleData9[1],
            radius = _getCircleData9[2];

        var dx = x - x3;
        var dy = y - y3;
        returnValue = Math.abs(Math.sqrt(dx * dx + dy * dy) - radius);
      }

      return returnValue;
    }

    /**
     *
     * @param {number} x1
     * @param {number} y1
     * @param {number} x2
     * @param {number} y2
     * @param {number} x3
     * @param {number} y3
     * @returns {number}
     * @private
     */

  }, {
    key: "_getDistanceToLine",
    value: function _getDistanceToLine(x1, y1, x2, y2, x3, y3) {
      var px = x2 - x1;
      var py = y2 - y1;
      var something = px * px + py * py;
      var u = ((x3 - x1) * px + (y3 - y1) * py) / something;

      if (u > 1) {
        u = 1;
      } else if (u < 0) {
        u = 0;
      }

      var x = x1 + u * px;
      var y = y1 + u * py;
      var dx = x - x3;
      var dy = y - y3;

      //# Note: If the actual distance does not matter,
      //# if you only want to compare what this function
      //# returns to other results of this function, you
      //# can just return the squared distance instead
      //# (i.e. remove the sqrt) to gain a little performance

      return Math.sqrt(dx * dx + dy * dy);
    }

    /**
     * @param {CanvasRenderingContext2D} ctx
     * @param {string} position
     * @param {Node} viaNode
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {Array} values
     * @returns {{point: *, core: {x: number, y: number}, angle: *, length: number, type: *}}
     */

  }, {
    key: "getArrowData",
    value: function getArrowData(ctx, position, viaNode, selected, hover, values) {
      // set lets
      var angle = void 0;
      var arrowPoint = void 0;
      var node1 = void 0;
      var node2 = void 0;
      var guideOffset = void 0;
      var scaleFactor = void 0;
      var type = void 0;
      var lineWidth = values.width;

      if (position === 'from') {
        node1 = this.from;
        node2 = this.to;
        guideOffset = 0.1;
        scaleFactor = values.fromArrowScale;
        type = values.fromArrowType;
      } else if (position === 'to') {
        node1 = this.to;
        node2 = this.from;
        guideOffset = -0.1;
        scaleFactor = values.toArrowScale;
        type = values.toArrowType;
      } else {
        node1 = this.to;
        node2 = this.from;
        scaleFactor = values.middleArrowScale;
        type = values.middleArrowType;
      }

      // if not connected to itself
      if (node1 != node2) {
        if (position !== 'middle') {
          // draw arrow head
          if (this.options.smooth.enabled === true) {
            arrowPoint = this.findBorderPosition(node1, ctx, { via: viaNode });
            var guidePos = this.getPoint(Math.max(0.0, Math.min(1.0, arrowPoint.t + guideOffset)), viaNode);
            angle = Math.atan2(arrowPoint.y - guidePos.y, arrowPoint.x - guidePos.x);
          } else {
            angle = Math.atan2(node1.y - node2.y, node1.x - node2.x);
            arrowPoint = this.findBorderPosition(node1, ctx);
          }
        } else {
          angle = Math.atan2(node1.y - node2.y, node1.x - node2.x);
          arrowPoint = this.getPoint(0.5, viaNode); // this is 0.6 to account for the size of the arrow.
        }
      } else {
        // draw circle
        var _getCircleData10 = this._getCircleData(ctx),
            _getCircleData11 = (0, _slicedToArray3["default"])(_getCircleData10, 3),
            x = _getCircleData11[0],
            y = _getCircleData11[1],
            radius = _getCircleData11[2];

        if (position === 'from') {
          arrowPoint = this.findBorderPosition(this.from, ctx, { x: x, y: y, low: 0.25, high: 0.6, direction: -1 });
          angle = arrowPoint.t * -2 * Math.PI + 1.5 * Math.PI + 0.1 * Math.PI;
        } else if (position === 'to') {
          arrowPoint = this.findBorderPosition(this.from, ctx, { x: x, y: y, low: 0.6, high: 1.0, direction: 1 });
          angle = arrowPoint.t * -2 * Math.PI + 1.5 * Math.PI - 1.1 * Math.PI;
        } else {
          arrowPoint = this._pointOnCircle(x, y, radius, 0.175);
          angle = 3.9269908169872414; // === 0.175 * -2 * Math.PI + 1.5 * Math.PI + 0.1 * Math.PI;
        }
      }

      if (position === 'middle' && scaleFactor < 0) lineWidth *= -1; // reversed middle arrow
      var length = 15 * scaleFactor + 3 * lineWidth; // 3* lineWidth is the width of the edge.

      var xi = arrowPoint.x - length * 0.9 * Math.cos(angle);
      var yi = arrowPoint.y - length * 0.9 * Math.sin(angle);
      var arrowCore = { x: xi, y: yi };

      return { point: arrowPoint, core: arrowCore, angle: angle, length: length, type: type };
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {Object} arrowData
     */

  }, {
    key: "drawArrowHead",
    value: function drawArrowHead(ctx, values, selected, hover, arrowData) {
      // set style
      ctx.strokeStyle = this.getColor(ctx, values, selected, hover);
      ctx.fillStyle = ctx.strokeStyle;
      ctx.lineWidth = values.width;

      EndPoints.draw(ctx, arrowData);

      // draw shadow if enabled
      this.enableShadow(ctx, values);
      ctx.fill();
      // disable shadows for other elements.
      this.disableShadow(ctx, values);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: "enableShadow",
    value: function enableShadow(ctx, values) {
      if (values.shadow === true) {
        ctx.shadowColor = values.shadowColor;
        ctx.shadowBlur = values.shadowSize;
        ctx.shadowOffsetX = values.shadowX;
        ctx.shadowOffsetY = values.shadowY;
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: "disableShadow",
    value: function disableShadow(ctx, values) {
      if (values.shadow === true) {
        ctx.shadowColor = 'rgba(0,0,0,0)';
        ctx.shadowBlur = 0;
        ctx.shadowOffsetX = 0;
        ctx.shadowOffsetY = 0;
      }
    }
  }]);
  return EdgeBase;
}();

exports["default"] = EdgeBase;

/***/ }),
/* 119 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/** ============================================================================
 * Location of all the endpoint drawing routines.
 *
 * Every endpoint has its own drawing routine, which contains an endpoint definition.
 *
 * The endpoint definitions must have the following properies:
 *
 * - (0,0) is the connection point to the node it attaches to
 * - The endpoints are orientated to the positive x-direction
 * - The length of the endpoint is at most 1
 *
 * As long as the endpoint classes remain simple and not too numerous, they will
 * be contained within this module.
 * All classes here except `EndPoints` should be considered as private to this module.
 *
 * -----------------------------------------------------------------------------
 * ### Further Actions
 *
 * After adding a new endpoint here, you also need to do the following things:
 *
 * - Add the new endpoint name to `network/options.js` in array `endPoints`.
 * - Add the new endpoint name to the documentation.
 *   Scan for 'arrows.to.type` and add it to the description.
 * - Add the endpoint to the examples. At the very least, add it to example
 *   `edgeStyles/arrowTypes`.
 * ============================================================================= */

// NOTE: When a typedef is isolated in a separate comment block, an actual description is generated for it,
//       using the rest of the commenting in the code block. Usage of typedef in other comments then
//       link to there. TIL.
//
//       Also noteworthy, all typedef's set up in this manner are collected in a single, global page 'global.html'.
//       In other words, it doesn't matter *where* the typedef's are defined in the code.
//
//
// TODO: add descriptive commenting to given typedef's

/**
 * @typedef {{type:string, point:Point, angle:number, length:number}} ArrowData
 *
 * Object containing instantiation data for a given endpoint.
 */

/**
 * @typedef {{x:number, y:number}} Point
 * 
 * A point in view-coordinates.
 */

/**
 * Common methods for endpoints
 *
 * @class
 */
var EndPoint = function () {
  function EndPoint() {
    (0, _classCallCheck3['default'])(this, EndPoint);
  }

  (0, _createClass3['default'])(EndPoint, null, [{
    key: 'transform',


    /**
     * Apply transformation on points for display.
     *
     * The following is done:
     * - rotate by the specified angle
     * - multiply the (normalized) coordinates by the passed length
     * - offset by the target coordinates
     *
     * @param {Array<Point>} points
     * @param {ArrowData} arrowData
     * @static
     */
    value: function transform(points, arrowData) {
      if (!(points instanceof Array)) {
        points = [points];
      }

      var x = arrowData.point.x;
      var y = arrowData.point.y;
      var angle = arrowData.angle;
      var length = arrowData.length;

      for (var i = 0; i < points.length; ++i) {
        var p = points[i];
        var xt = p.x * Math.cos(angle) - p.y * Math.sin(angle);
        var yt = p.x * Math.sin(angle) + p.y * Math.cos(angle);

        p.x = x + length * xt;
        p.y = y + length * yt;
      }
    }

    /**
     * Draw a closed path using the given real coordinates.
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {Array.<Point>} points
     * @static
     */

  }, {
    key: 'drawPath',
    value: function drawPath(ctx, points) {
      ctx.beginPath();
      ctx.moveTo(points[0].x, points[0].y);
      for (var i = 1; i < points.length; ++i) {
        ctx.lineTo(points[i].x, points[i].y);
      }
      ctx.closePath();
    }
  }]);
  return EndPoint;
}();

/**
 * Drawing methods for the arrow endpoint.
 * @extends EndPoint
 */


var Arrow = function (_EndPoint) {
  (0, _inherits3['default'])(Arrow, _EndPoint);

  function Arrow() {
    (0, _classCallCheck3['default'])(this, Arrow);
    return (0, _possibleConstructorReturn3['default'])(this, (Arrow.__proto__ || (0, _getPrototypeOf2['default'])(Arrow)).apply(this, arguments));
  }

  (0, _createClass3['default'])(Arrow, null, [{
    key: 'draw',


    /**
     * Draw this shape at the end of a line.
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {ArrowData} arrowData
     * @static
     */
    value: function draw(ctx, arrowData) {
      // Normalized points of closed path, in the order that they should be drawn.
      // (0, 0) is the attachment point, and the point around which should be rotated
      var points = [{ x: 0, y: 0 }, { x: -1, y: 0.3 }, { x: -0.9, y: 0 }, { x: -1, y: -0.3 }];

      EndPoint.transform(points, arrowData);
      EndPoint.drawPath(ctx, points);
    }
  }]);
  return Arrow;
}(EndPoint);

/**
 * Drawing methods for the circle endpoint.
 */


var Circle = function () {
  function Circle() {
    (0, _classCallCheck3['default'])(this, Circle);
  }

  (0, _createClass3['default'])(Circle, null, [{
    key: 'draw',


    /**
     * Draw this shape at the end of a line.
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {ArrowData} arrowData
     * @static
     */
    value: function draw(ctx, arrowData) {
      var point = { x: -0.4, y: 0 };

      EndPoint.transform(point, arrowData);
      ctx.circle(point.x, point.y, arrowData.length * 0.4);
    }
  }]);
  return Circle;
}();

/**
 * Drawing methods for the bar endpoint.
 */


var Bar = function () {
  function Bar() {
    (0, _classCallCheck3['default'])(this, Bar);
  }

  (0, _createClass3['default'])(Bar, null, [{
    key: 'draw',


    /**
     * Draw this shape at the end of a line.
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {ArrowData} arrowData
     * @static
     */
    value: function draw(ctx, arrowData) {
      /*
          var points = [
            {x:0, y:0.5},
            {x:0, y:-0.5}
          ];
      
          EndPoint.transform(points, arrowData);
          ctx.beginPath();
          ctx.moveTo(points[0].x, points[0].y);
          ctx.lineTo(points[1].x, points[1].y);
          ctx.stroke();
      */

      var points = [{ x: 0, y: 0.5 }, { x: 0, y: -0.5 }, { x: -0.15, y: -0.5 }, { x: -0.15, y: 0.5 }];

      EndPoint.transform(points, arrowData);
      EndPoint.drawPath(ctx, points);
    }
  }]);
  return Bar;
}();

/**
 * Drawing methods for the endpoints.
 */


var EndPoints = function () {
  function EndPoints() {
    (0, _classCallCheck3['default'])(this, EndPoints);
  }

  (0, _createClass3['default'])(EndPoints, null, [{
    key: 'draw',


    /**
     * Draw an endpoint
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {ArrowData} arrowData
     * @static
     */
    value: function draw(ctx, arrowData) {
      var type;
      if (arrowData.type) {
        type = arrowData.type.toLowerCase();
      }

      switch (type) {
        case 'circle':
          Circle.draw(ctx, arrowData);
          break;
        case 'bar':
          Bar.draw(ctx, arrowData);
          break;
        case 'arrow': // fall-through
        default:
          Arrow.draw(ctx, arrowData);
      }
    }
  }]);
  return EndPoints;
}();

exports['default'] = EndPoints;

/***/ }),
/* 120 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * Barnes Hut Solver
 */
var BarnesHutSolver = function () {
  /**
   * @param {Object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {Object} options
   */
  function BarnesHutSolver(body, physicsBody, options) {
    (0, _classCallCheck3["default"])(this, BarnesHutSolver);

    this.body = body;
    this.physicsBody = physicsBody;
    this.barnesHutTree;
    this.setOptions(options);
    this.randomSeed = 5;

    // debug: show grid
    // this.body.emitter.on("afterDrawing", (ctx) => {this._debug(ctx,'#ff0000')})
  }

  /**
   *
   * @param {Object} options
   */


  (0, _createClass3["default"])(BarnesHutSolver, [{
    key: "setOptions",
    value: function setOptions(options) {
      this.options = options;
      this.thetaInversed = 1 / this.options.theta;

      // if 1 then min distance = 0.5, if 0.5 then min distance = 0.5 + 0.5*node.shape.radius
      this.overlapAvoidanceFactor = 1 - Math.max(0, Math.min(1, this.options.avoidOverlap));
    }

    /**
     *
     * @returns {number} random integer
     */

  }, {
    key: "seededRandom",
    value: function seededRandom() {
      var x = Math.sin(this.randomSeed++) * 10000;
      return x - Math.floor(x);
    }

    /**
     * This function calculates the forces the nodes apply on each other based on a gravitational model.
     * The Barnes Hut method is used to speed up this N-body simulation.
     *
     * @private
     */

  }, {
    key: "solve",
    value: function solve() {
      if (this.options.gravitationalConstant !== 0 && this.physicsBody.physicsNodeIndices.length > 0) {
        var node = void 0;
        var nodes = this.body.nodes;
        var nodeIndices = this.physicsBody.physicsNodeIndices;
        var nodeCount = nodeIndices.length;

        // create the tree
        var barnesHutTree = this._formBarnesHutTree(nodes, nodeIndices);

        // for debugging
        this.barnesHutTree = barnesHutTree;

        // place the nodes one by one recursively
        for (var i = 0; i < nodeCount; i++) {
          node = nodes[nodeIndices[i]];
          if (node.options.mass > 0) {
            // starting with root is irrelevant, it never passes the BarnesHutSolver condition
            this._getForceContributions(barnesHutTree.root, node);
          }
        }
      }
    }

    /**
     * @param {Object} parentBranch
     * @param {Node} node
     * @private
     */

  }, {
    key: "_getForceContributions",
    value: function _getForceContributions(parentBranch, node) {
      this._getForceContribution(parentBranch.children.NW, node);
      this._getForceContribution(parentBranch.children.NE, node);
      this._getForceContribution(parentBranch.children.SW, node);
      this._getForceContribution(parentBranch.children.SE, node);
    }

    /**
     * This function traverses the barnesHutTree. It checks when it can approximate distant nodes with their center of mass.
     * If a region contains a single node, we check if it is not itself, then we apply the force.
     *
     * @param {Object} parentBranch
     * @param {Node} node
     * @private
     */

  }, {
    key: "_getForceContribution",
    value: function _getForceContribution(parentBranch, node) {
      // we get no force contribution from an empty region
      if (parentBranch.childrenCount > 0) {
        var dx = void 0,
            dy = void 0,
            distance = void 0;

        // get the distance from the center of mass to the node.
        dx = parentBranch.centerOfMass.x - node.x;
        dy = parentBranch.centerOfMass.y - node.y;
        distance = Math.sqrt(dx * dx + dy * dy);

        // BarnesHutSolver condition
        // original condition : s/d < theta = passed  ===  d/s > 1/theta = passed
        // calcSize = 1/s --> d * 1/s > 1/theta = passed
        if (distance * parentBranch.calcSize > this.thetaInversed) {
          this._calculateForces(distance, dx, dy, node, parentBranch);
        } else {
          // Did not pass the condition, go into children if available
          if (parentBranch.childrenCount === 4) {
            this._getForceContributions(parentBranch, node);
          } else {
            // parentBranch must have only one node, if it was empty we wouldnt be here
            if (parentBranch.children.data.id != node.id) {
              // if it is not self
              this._calculateForces(distance, dx, dy, node, parentBranch);
            }
          }
        }
      }
    }

    /**
     * Calculate the forces based on the distance.
     *
     * @param {number} distance
     * @param {number} dx
     * @param {number} dy
     * @param {Node} node
     * @param {Object} parentBranch
     * @private
     */

  }, {
    key: "_calculateForces",
    value: function _calculateForces(distance, dx, dy, node, parentBranch) {
      if (distance === 0) {
        distance = 0.1;
        dx = distance;
      }

      if (this.overlapAvoidanceFactor < 1 && node.shape.radius) {
        distance = Math.max(0.1 + this.overlapAvoidanceFactor * node.shape.radius, distance - node.shape.radius);
      }

      // the dividing by the distance cubed instead of squared allows us to get the fx and fy components without sines and cosines
      // it is shorthand for gravityforce with distance squared and fx = dx/distance * gravityForce
      var gravityForce = this.options.gravitationalConstant * parentBranch.mass * node.options.mass / Math.pow(distance, 3);
      var fx = dx * gravityForce;
      var fy = dy * gravityForce;

      this.physicsBody.forces[node.id].x += fx;
      this.physicsBody.forces[node.id].y += fy;
    }

    /**
     * This function constructs the barnesHut tree recursively. It creates the root, splits it and starts placing the nodes.
     *
     * @param {Array.<Node>} nodes
     * @param {Array.<number>} nodeIndices
     * @returns {{root: {centerOfMass: {x: number, y: number}, mass: number, range: {minX: number, maxX: number, minY: number, maxY: number}, size: number, calcSize: number, children: {data: null}, maxWidth: number, level: number, childrenCount: number}}} BarnesHutTree
     * @private
     */

  }, {
    key: "_formBarnesHutTree",
    value: function _formBarnesHutTree(nodes, nodeIndices) {
      var node = void 0;
      var nodeCount = nodeIndices.length;

      var minX = nodes[nodeIndices[0]].x;
      var minY = nodes[nodeIndices[0]].y;
      var maxX = nodes[nodeIndices[0]].x;
      var maxY = nodes[nodeIndices[0]].y;

      // get the range of the nodes
      for (var i = 1; i < nodeCount; i++) {
        var _node = nodes[nodeIndices[i]];
        var x = _node.x;
        var y = _node.y;
        if (_node.options.mass > 0) {
          if (x < minX) {
            minX = x;
          }
          if (x > maxX) {
            maxX = x;
          }
          if (y < minY) {
            minY = y;
          }
          if (y > maxY) {
            maxY = y;
          }
        }
      }
      // make the range a square
      var sizeDiff = Math.abs(maxX - minX) - Math.abs(maxY - minY); // difference between X and Y
      if (sizeDiff > 0) {
        minY -= 0.5 * sizeDiff;
        maxY += 0.5 * sizeDiff;
      } // xSize > ySize
      else {
          minX += 0.5 * sizeDiff;
          maxX -= 0.5 * sizeDiff;
        } // xSize < ySize


      var minimumTreeSize = 1e-5;
      var rootSize = Math.max(minimumTreeSize, Math.abs(maxX - minX));
      var halfRootSize = 0.5 * rootSize;
      var centerX = 0.5 * (minX + maxX),
          centerY = 0.5 * (minY + maxY);

      // construct the barnesHutTree
      var barnesHutTree = {
        root: {
          centerOfMass: { x: 0, y: 0 },
          mass: 0,
          range: {
            minX: centerX - halfRootSize, maxX: centerX + halfRootSize,
            minY: centerY - halfRootSize, maxY: centerY + halfRootSize
          },
          size: rootSize,
          calcSize: 1 / rootSize,
          children: { data: null },
          maxWidth: 0,
          level: 0,
          childrenCount: 4
        }
      };
      this._splitBranch(barnesHutTree.root);

      // place the nodes one by one recursively
      for (var _i = 0; _i < nodeCount; _i++) {
        node = nodes[nodeIndices[_i]];
        if (node.options.mass > 0) {
          this._placeInTree(barnesHutTree.root, node);
        }
      }

      // make global
      return barnesHutTree;
    }

    /**
     * this updates the mass of a branch. this is increased by adding a node.
     *
     * @param {Object} parentBranch
     * @param {Node} node
     * @private
     */

  }, {
    key: "_updateBranchMass",
    value: function _updateBranchMass(parentBranch, node) {
      var centerOfMass = parentBranch.centerOfMass;
      var totalMass = parentBranch.mass + node.options.mass;
      var totalMassInv = 1 / totalMass;

      centerOfMass.x = centerOfMass.x * parentBranch.mass + node.x * node.options.mass;
      centerOfMass.x *= totalMassInv;

      centerOfMass.y = centerOfMass.y * parentBranch.mass + node.y * node.options.mass;
      centerOfMass.y *= totalMassInv;

      parentBranch.mass = totalMass;
      var biggestSize = Math.max(Math.max(node.height, node.radius), node.width);
      parentBranch.maxWidth = parentBranch.maxWidth < biggestSize ? biggestSize : parentBranch.maxWidth;
    }

    /**
     * determine in which branch the node will be placed.
     *
     * @param {Object} parentBranch
     * @param {Node} node
     * @param {boolean} skipMassUpdate
     * @private
     */

  }, {
    key: "_placeInTree",
    value: function _placeInTree(parentBranch, node, skipMassUpdate) {
      if (skipMassUpdate != true || skipMassUpdate === undefined) {
        // update the mass of the branch.
        this._updateBranchMass(parentBranch, node);
      }

      var range = parentBranch.children.NW.range;
      var region = void 0;
      if (range.maxX > node.x) {
        // in NW or SW
        if (range.maxY > node.y) {
          region = "NW";
        } else {
          region = "SW";
        }
      } else {
        // in NE or SE
        if (range.maxY > node.y) {
          region = "NE";
        } else {
          region = "SE";
        }
      }

      this._placeInRegion(parentBranch, node, region);
    }

    /**
     * actually place the node in a region (or branch)
     *
     * @param {Object} parentBranch
     * @param {Node} node
     * @param {'NW'| 'NE' | 'SW' | 'SE'} region
     * @private
     */

  }, {
    key: "_placeInRegion",
    value: function _placeInRegion(parentBranch, node, region) {
      var children = parentBranch.children[region];

      switch (children.childrenCount) {
        case 0:
          // place node here
          children.children.data = node;
          children.childrenCount = 1;
          this._updateBranchMass(children, node);
          break;
        case 1:
          // convert into children
          // if there are two nodes exactly overlapping (on init, on opening of cluster etc.)
          // we move one node a little bit and we do not put it in the tree.
          if (children.children.data.x === node.x && children.children.data.y === node.y) {
            node.x += this.seededRandom();
            node.y += this.seededRandom();
          } else {
            this._splitBranch(children);
            this._placeInTree(children, node);
          }
          break;
        case 4:
          // place in branch
          this._placeInTree(children, node);
          break;
      }
    }

    /**
     * this function splits a branch into 4 sub branches. If the branch contained a node, we place it in the subbranch
     * after the split is complete.
     *
     * @param {Object} parentBranch
     * @private
     */

  }, {
    key: "_splitBranch",
    value: function _splitBranch(parentBranch) {
      // if the branch is shaded with a node, replace the node in the new subset.
      var containedNode = null;
      if (parentBranch.childrenCount === 1) {
        containedNode = parentBranch.children.data;
        parentBranch.mass = 0;
        parentBranch.centerOfMass.x = 0;
        parentBranch.centerOfMass.y = 0;
      }
      parentBranch.childrenCount = 4;
      parentBranch.children.data = null;
      this._insertRegion(parentBranch, "NW");
      this._insertRegion(parentBranch, "NE");
      this._insertRegion(parentBranch, "SW");
      this._insertRegion(parentBranch, "SE");

      if (containedNode != null) {
        this._placeInTree(parentBranch, containedNode);
      }
    }

    /**
     * This function subdivides the region into four new segments.
     * Specifically, this inserts a single new segment.
     * It fills the children section of the parentBranch
     *
     * @param {Object} parentBranch
     * @param {'NW'| 'NE' | 'SW' | 'SE'} region
     * @private
     */

  }, {
    key: "_insertRegion",
    value: function _insertRegion(parentBranch, region) {
      var minX = void 0,
          maxX = void 0,
          minY = void 0,
          maxY = void 0;
      var childSize = 0.5 * parentBranch.size;
      switch (region) {
        case "NW":
          minX = parentBranch.range.minX;
          maxX = parentBranch.range.minX + childSize;
          minY = parentBranch.range.minY;
          maxY = parentBranch.range.minY + childSize;
          break;
        case "NE":
          minX = parentBranch.range.minX + childSize;
          maxX = parentBranch.range.maxX;
          minY = parentBranch.range.minY;
          maxY = parentBranch.range.minY + childSize;
          break;
        case "SW":
          minX = parentBranch.range.minX;
          maxX = parentBranch.range.minX + childSize;
          minY = parentBranch.range.minY + childSize;
          maxY = parentBranch.range.maxY;
          break;
        case "SE":
          minX = parentBranch.range.minX + childSize;
          maxX = parentBranch.range.maxX;
          minY = parentBranch.range.minY + childSize;
          maxY = parentBranch.range.maxY;
          break;
      }

      parentBranch.children[region] = {
        centerOfMass: { x: 0, y: 0 },
        mass: 0,
        range: { minX: minX, maxX: maxX, minY: minY, maxY: maxY },
        size: 0.5 * parentBranch.size,
        calcSize: 2 * parentBranch.calcSize,
        children: { data: null },
        maxWidth: 0,
        level: parentBranch.level + 1,
        childrenCount: 0
      };
    }

    //---------------------------  DEBUGGING BELOW  ---------------------------//


    /**
     * This function is for debugging purposed, it draws the tree.
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {string} color
     * @private
     */

  }, {
    key: "_debug",
    value: function _debug(ctx, color) {
      if (this.barnesHutTree !== undefined) {

        ctx.lineWidth = 1;

        this._drawBranch(this.barnesHutTree.root, ctx, color);
      }
    }

    /**
     * This function is for debugging purposes. It draws the branches recursively.
     *
     * @param {Object} branch
     * @param {CanvasRenderingContext2D} ctx
     * @param {string} color
     * @private
     */

  }, {
    key: "_drawBranch",
    value: function _drawBranch(branch, ctx, color) {
      if (color === undefined) {
        color = "#FF0000";
      }

      if (branch.childrenCount === 4) {
        this._drawBranch(branch.children.NW, ctx);
        this._drawBranch(branch.children.NE, ctx);
        this._drawBranch(branch.children.SE, ctx);
        this._drawBranch(branch.children.SW, ctx);
      }
      ctx.strokeStyle = color;
      ctx.beginPath();
      ctx.moveTo(branch.range.minX, branch.range.minY);
      ctx.lineTo(branch.range.maxX, branch.range.minY);
      ctx.stroke();

      ctx.beginPath();
      ctx.moveTo(branch.range.maxX, branch.range.minY);
      ctx.lineTo(branch.range.maxX, branch.range.maxY);
      ctx.stroke();

      ctx.beginPath();
      ctx.moveTo(branch.range.maxX, branch.range.maxY);
      ctx.lineTo(branch.range.minX, branch.range.maxY);
      ctx.stroke();

      ctx.beginPath();
      ctx.moveTo(branch.range.minX, branch.range.maxY);
      ctx.lineTo(branch.range.minX, branch.range.minY);
      ctx.stroke();

      /*
       if (branch.mass > 0) {
       ctx.circle(branch.centerOfMass.x, branch.centerOfMass.y, 3*branch.mass);
       ctx.stroke();
       }
       */
    }
  }]);
  return BarnesHutSolver;
}();

exports["default"] = BarnesHutSolver;

/***/ }),
/* 121 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * Central Gravity Solver
 */
var CentralGravitySolver = function () {
  /**
   * @param {Object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {Object} options
   */
  function CentralGravitySolver(body, physicsBody, options) {
    (0, _classCallCheck3["default"])(this, CentralGravitySolver);

    this.body = body;
    this.physicsBody = physicsBody;
    this.setOptions(options);
  }

  /**
   *
   * @param {Object} options
   */


  (0, _createClass3["default"])(CentralGravitySolver, [{
    key: "setOptions",
    value: function setOptions(options) {
      this.options = options;
    }

    /**
     * Calculates forces for each node
     */

  }, {
    key: "solve",
    value: function solve() {
      var dx = void 0,
          dy = void 0,
          distance = void 0,
          node = void 0;
      var nodes = this.body.nodes;
      var nodeIndices = this.physicsBody.physicsNodeIndices;
      var forces = this.physicsBody.forces;

      for (var i = 0; i < nodeIndices.length; i++) {
        var nodeId = nodeIndices[i];
        node = nodes[nodeId];
        dx = -node.x;
        dy = -node.y;
        distance = Math.sqrt(dx * dx + dy * dy);

        this._calculateForces(distance, dx, dy, forces, node);
      }
    }

    /**
     * Calculate the forces based on the distance.
     * @param {number} distance
     * @param {number} dx
     * @param {number} dy
     * @param {Object<Node.id, vis.Node>} forces
     * @param {Node} node
     * @private
     */

  }, {
    key: "_calculateForces",
    value: function _calculateForces(distance, dx, dy, forces, node) {
      var gravityForce = distance === 0 ? 0 : this.options.centralGravity / distance;
      forces[node.id].x = dx * gravityForce;
      forces[node.id].y = dy * gravityForce;
    }
  }]);
  return CentralGravitySolver;
}();

exports["default"] = CentralGravitySolver;

/***/ }),
/* 122 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
/**
 * This object contains all possible options. It will check if the types are correct, if required if the option is one
 * of the allowed values.
 *
 * __any__ means that the name of the property does not matter.
 * __type__ is a required field for all objects and contains the allowed types of all objects
 */
var string = 'string';
var bool = 'boolean';
var number = 'number';
var array = 'array';
var object = 'object'; // should only be in a __type__ property
var dom = 'dom';
var any = 'any';

// List of endpoints
var endPoints = ['arrow', 'circle', 'bar'];

var allOptions = {
  configure: {
    enabled: { boolean: bool },
    filter: { boolean: bool, string: string, array: array, 'function': 'function' },
    container: { dom: dom },
    showButton: { boolean: bool },
    __type__: { object: object, boolean: bool, string: string, array: array, 'function': 'function' }
  },
  edges: {
    arrows: {
      to: { enabled: { boolean: bool }, scaleFactor: { number: number }, type: { string: endPoints }, __type__: { object: object, boolean: bool } },
      middle: { enabled: { boolean: bool }, scaleFactor: { number: number }, type: { string: endPoints }, __type__: { object: object, boolean: bool } },
      from: { enabled: { boolean: bool }, scaleFactor: { number: number }, type: { string: endPoints }, __type__: { object: object, boolean: bool } },
      __type__: { string: ['from', 'to', 'middle'], object: object }
    },
    arrowStrikethrough: { boolean: bool },
    chosen: {
      label: { boolean: bool, 'function': 'function' },
      edge: { boolean: bool, 'function': 'function' },
      __type__: { object: object, boolean: bool }
    },
    color: {
      color: { string: string },
      highlight: { string: string },
      hover: { string: string },
      inherit: { string: ['from', 'to', 'both'], boolean: bool },
      opacity: { number: number },
      __type__: { object: object, string: string }
    },
    dashes: { boolean: bool, array: array },
    font: {
      color: { string: string },
      size: { number: number }, // px
      face: { string: string },
      background: { string: string },
      strokeWidth: { number: number }, // px
      strokeColor: { string: string },
      align: { string: ['horizontal', 'top', 'middle', 'bottom'] },
      vadjust: { number: number },
      multi: { boolean: bool, string: string },
      bold: {
        color: { string: string },
        size: { number: number }, // px
        face: { string: string },
        mod: { string: string },
        vadjust: { number: number },
        __type__: { object: object, string: string }
      },
      boldital: {
        color: { string: string },
        size: { number: number }, // px
        face: { string: string },
        mod: { string: string },
        vadjust: { number: number },
        __type__: { object: object, string: string }
      },
      ital: {
        color: { string: string },
        size: { number: number }, // px
        face: { string: string },
        mod: { string: string },
        vadjust: { number: number },
        __type__: { object: object, string: string }
      },
      mono: {
        color: { string: string },
        size: { number: number }, // px
        face: { string: string },
        mod: { string: string },
        vadjust: { number: number },
        __type__: { object: object, string: string }
      },
      __type__: { object: object, string: string }
    },
    hidden: { boolean: bool },
    hoverWidth: { 'function': 'function', number: number },
    label: { string: string, 'undefined': 'undefined' },
    labelHighlightBold: { boolean: bool },
    length: { number: number, 'undefined': 'undefined' },
    physics: { boolean: bool },
    scaling: {
      min: { number: number },
      max: { number: number },
      label: {
        enabled: { boolean: bool },
        min: { number: number },
        max: { number: number },
        maxVisible: { number: number },
        drawThreshold: { number: number },
        __type__: { object: object, boolean: bool }
      },
      customScalingFunction: { 'function': 'function' },
      __type__: { object: object }
    },
    selectionWidth: { 'function': 'function', number: number },
    selfReferenceSize: { number: number },
    shadow: {
      enabled: { boolean: bool },
      color: { string: string },
      size: { number: number },
      x: { number: number },
      y: { number: number },
      __type__: { object: object, boolean: bool }
    },
    smooth: {
      enabled: { boolean: bool },
      type: { string: ['dynamic', 'continuous', 'discrete', 'diagonalCross', 'straightCross', 'horizontal', 'vertical', 'curvedCW', 'curvedCCW', 'cubicBezier'] },
      roundness: { number: number },
      forceDirection: { string: ['horizontal', 'vertical', 'none'], boolean: bool },
      __type__: { object: object, boolean: bool }
    },
    title: { string: string, 'undefined': 'undefined' },
    width: { number: number },
    widthConstraint: {
      maximum: { number: number },
      __type__: { object: object, boolean: bool, number: number }
    },
    value: { number: number, 'undefined': 'undefined' },
    __type__: { object: object }
  },
  groups: {
    useDefaultGroups: { boolean: bool },
    __any__: 'get from nodes, will be overwritten below',
    __type__: { object: object }
  },
  interaction: {
    dragNodes: { boolean: bool },
    dragView: { boolean: bool },
    hideEdgesOnDrag: { boolean: bool },
    hideNodesOnDrag: { boolean: bool },
    hover: { boolean: bool },
    keyboard: {
      enabled: { boolean: bool },
      speed: { x: { number: number }, y: { number: number }, zoom: { number: number }, __type__: { object: object } },
      bindToWindow: { boolean: bool },
      __type__: { object: object, boolean: bool }
    },
    multiselect: { boolean: bool },
    navigationButtons: { boolean: bool },
    selectable: { boolean: bool },
    selectConnectedEdges: { boolean: bool },
    hoverConnectedEdges: { boolean: bool },
    tooltipDelay: { number: number },
    zoomView: { boolean: bool },
    __type__: { object: object }
  },
  layout: {
    randomSeed: { 'undefined': 'undefined', number: number },
    improvedLayout: { boolean: bool },
    hierarchical: {
      enabled: { boolean: bool },
      levelSeparation: { number: number },
      nodeSpacing: { number: number },
      treeSpacing: { number: number },
      blockShifting: { boolean: bool },
      edgeMinimization: { boolean: bool },
      parentCentralization: { boolean: bool },
      direction: { string: ['UD', 'DU', 'LR', 'RL'] }, // UD, DU, LR, RL
      sortMethod: { string: ['hubsize', 'directed'] }, // hubsize, directed
      __type__: { object: object, boolean: bool }
    },
    __type__: { object: object }
  },
  manipulation: {
    enabled: { boolean: bool },
    initiallyActive: { boolean: bool },
    addNode: { boolean: bool, 'function': 'function' },
    addEdge: { boolean: bool, 'function': 'function' },
    editNode: { 'function': 'function' },
    editEdge: {
      editWithoutDrag: { 'function': 'function' },
      __type__: { object: object, boolean: bool, 'function': 'function' }
    },
    deleteNode: { boolean: bool, 'function': 'function' },
    deleteEdge: { boolean: bool, 'function': 'function' },
    controlNodeStyle: 'get from nodes, will be overwritten below',
    __type__: { object: object, boolean: bool }
  },
  nodes: {
    borderWidth: { number: number },
    borderWidthSelected: { number: number, 'undefined': 'undefined' },
    brokenImage: { string: string, 'undefined': 'undefined' },
    chosen: {
      label: { boolean: bool, 'function': 'function' },
      node: { boolean: bool, 'function': 'function' },
      __type__: { object: object, boolean: bool }
    },
    color: {
      border: { string: string },
      background: { string: string },
      highlight: {
        border: { string: string },
        background: { string: string },
        __type__: { object: object, string: string }
      },
      hover: {
        border: { string: string },
        background: { string: string },
        __type__: { object: object, string: string }
      },
      __type__: { object: object, string: string }
    },
    fixed: {
      x: { boolean: bool },
      y: { boolean: bool },
      __type__: { object: object, boolean: bool }
    },
    font: {
      align: { string: string },
      color: { string: string },
      size: { number: number }, // px
      face: { string: string },
      background: { string: string },
      strokeWidth: { number: number }, // px
      strokeColor: { string: string },
      vadjust: { number: number },
      multi: { boolean: bool, string: string },
      bold: {
        color: { string: string },
        size: { number: number }, // px
        face: { string: string },
        mod: { string: string },
        vadjust: { number: number },
        __type__: { object: object, string: string }
      },
      boldital: {
        color: { string: string },
        size: { number: number }, // px
        face: { string: string },
        mod: { string: string },
        vadjust: { number: number },
        __type__: { object: object, string: string }
      },
      ital: {
        color: { string: string },
        size: { number: number }, // px
        face: { string: string },
        mod: { string: string },
        vadjust: { number: number },
        __type__: { object: object, string: string }
      },
      mono: {
        color: { string: string },
        size: { number: number }, // px
        face: { string: string },
        mod: { string: string },
        vadjust: { number: number },
        __type__: { object: object, string: string }
      },
      __type__: { object: object, string: string }
    },
    group: { string: string, number: number, 'undefined': 'undefined' },
    heightConstraint: {
      minimum: { number: number },
      valign: { string: string },
      __type__: { object: object, boolean: bool, number: number }
    },
    hidden: { boolean: bool },
    icon: {
      face: { string: string },
      code: { string: string }, //'\uf007',
      size: { number: number }, //50,
      color: { string: string },
      __type__: { object: object }
    },
    id: { string: string, number: number },
    image: {
      selected: { string: string, 'undefined': 'undefined' }, // --> URL
      unselected: { string: string, 'undefined': 'undefined' }, // --> URL
      __type__: { object: object, string: string }
    },
    label: { string: string, 'undefined': 'undefined' },
    labelHighlightBold: { boolean: bool },
    level: { number: number, 'undefined': 'undefined' },
    margin: {
      top: { number: number },
      right: { number: number },
      bottom: { number: number },
      left: { number: number },
      __type__: { object: object, number: number }
    },
    mass: { number: number },
    physics: { boolean: bool },
    scaling: {
      min: { number: number },
      max: { number: number },
      label: {
        enabled: { boolean: bool },
        min: { number: number },
        max: { number: number },
        maxVisible: { number: number },
        drawThreshold: { number: number },
        __type__: { object: object, boolean: bool }
      },
      customScalingFunction: { 'function': 'function' },
      __type__: { object: object }
    },
    shadow: {
      enabled: { boolean: bool },
      color: { string: string },
      size: { number: number },
      x: { number: number },
      y: { number: number },
      __type__: { object: object, boolean: bool }
    },
    shape: { string: ['ellipse', 'circle', 'database', 'box', 'text', 'image', 'circularImage', 'diamond', 'dot', 'star', 'triangle', 'triangleDown', 'square', 'icon', 'hexagon'] },
    shapeProperties: {
      borderDashes: { boolean: bool, array: array },
      borderRadius: { number: number },
      interpolation: { boolean: bool },
      useImageSize: { boolean: bool },
      useBorderWithImage: { boolean: bool },
      __type__: { object: object }
    },
    size: { number: number },
    title: { string: string, dom: dom, 'undefined': 'undefined' },
    value: { number: number, 'undefined': 'undefined' },
    widthConstraint: {
      minimum: { number: number },
      maximum: { number: number },
      __type__: { object: object, boolean: bool, number: number }
    },
    x: { number: number },
    y: { number: number },
    __type__: { object: object }
  },
  physics: {
    enabled: { boolean: bool },
    barnesHut: {
      gravitationalConstant: { number: number },
      centralGravity: { number: number },
      springLength: { number: number },
      springConstant: { number: number },
      damping: { number: number },
      avoidOverlap: { number: number },
      __type__: { object: object }
    },
    forceAtlas2Based: {
      gravitationalConstant: { number: number },
      centralGravity: { number: number },
      springLength: { number: number },
      springConstant: { number: number },
      damping: { number: number },
      avoidOverlap: { number: number },
      __type__: { object: object }
    },
    repulsion: {
      centralGravity: { number: number },
      springLength: { number: number },
      springConstant: { number: number },
      nodeDistance: { number: number },
      damping: { number: number },
      __type__: { object: object }
    },
    hierarchicalRepulsion: {
      centralGravity: { number: number },
      springLength: { number: number },
      springConstant: { number: number },
      nodeDistance: { number: number },
      damping: { number: number },
      __type__: { object: object }
    },
    maxVelocity: { number: number },
    minVelocity: { number: number }, // px/s
    solver: { string: ['barnesHut', 'repulsion', 'hierarchicalRepulsion', 'forceAtlas2Based'] },
    stabilization: {
      enabled: { boolean: bool },
      iterations: { number: number }, // maximum number of iteration to stabilize
      updateInterval: { number: number },
      onlyDynamicEdges: { boolean: bool },
      fit: { boolean: bool },
      __type__: { object: object, boolean: bool }
    },
    timestep: { number: number },
    adaptiveTimestep: { boolean: bool },
    __type__: { object: object, boolean: bool }
  },

  //globals :
  autoResize: { boolean: bool },
  clickToUse: { boolean: bool },
  locale: { string: string },
  locales: {
    __any__: { any: any },
    __type__: { object: object }
  },
  height: { string: string },
  width: { string: string },
  __type__: { object: object }
};

allOptions.groups.__any__ = allOptions.nodes;
allOptions.manipulation.controlNodeStyle = allOptions.nodes;

var configureOptions = {
  nodes: {
    borderWidth: [1, 0, 10, 1],
    borderWidthSelected: [2, 0, 10, 1],
    color: {
      border: ['color', '#2B7CE9'],
      background: ['color', '#97C2FC'],
      highlight: {
        border: ['color', '#2B7CE9'],
        background: ['color', '#D2E5FF']
      },
      hover: {
        border: ['color', '#2B7CE9'],
        background: ['color', '#D2E5FF']
      }
    },
    fixed: {
      x: false,
      y: false
    },
    font: {
      color: ['color', '#343434'],
      size: [14, 0, 100, 1], // px
      face: ['arial', 'verdana', 'tahoma'],
      background: ['color', 'none'],
      strokeWidth: [0, 0, 50, 1], // px
      strokeColor: ['color', '#ffffff']
    },
    //group: 'string',
    hidden: false,
    labelHighlightBold: true,
    //icon: {
    //  face: 'string',  //'FontAwesome',
    //  code: 'string',  //'\uf007',
    //  size: [50, 0, 200, 1],  //50,
    //  color: ['color','#2B7CE9']   //'#aa00ff'
    //},
    //image: 'string', // --> URL
    physics: true,
    scaling: {
      min: [10, 0, 200, 1],
      max: [30, 0, 200, 1],
      label: {
        enabled: false,
        min: [14, 0, 200, 1],
        max: [30, 0, 200, 1],
        maxVisible: [30, 0, 200, 1],
        drawThreshold: [5, 0, 20, 1]
      }
    },
    shadow: {
      enabled: false,
      color: 'rgba(0,0,0,0.5)',
      size: [10, 0, 20, 1],
      x: [5, -30, 30, 1],
      y: [5, -30, 30, 1]
    },
    shape: ['ellipse', 'box', 'circle', 'database', 'diamond', 'dot', 'square', 'star', 'text', 'triangle', 'triangleDown', 'hexagon'],
    shapeProperties: {
      borderDashes: false,
      borderRadius: [6, 0, 20, 1],
      interpolation: true,
      useImageSize: false
    },
    size: [25, 0, 200, 1]
  },
  edges: {
    arrows: {
      to: { enabled: false, scaleFactor: [1, 0, 3, 0.05], type: 'arrow' },
      middle: { enabled: false, scaleFactor: [1, 0, 3, 0.05], type: 'arrow' },
      from: { enabled: false, scaleFactor: [1, 0, 3, 0.05], type: 'arrow' }
    },
    arrowStrikethrough: true,
    color: {
      color: ['color', '#848484'],
      highlight: ['color', '#848484'],
      hover: ['color', '#848484'],
      inherit: ['from', 'to', 'both', true, false],
      opacity: [1, 0, 1, 0.05]
    },
    dashes: false,
    font: {
      color: ['color', '#343434'],
      size: [14, 0, 100, 1], // px
      face: ['arial', 'verdana', 'tahoma'],
      background: ['color', 'none'],
      strokeWidth: [2, 0, 50, 1], // px
      strokeColor: ['color', '#ffffff'],
      align: ['horizontal', 'top', 'middle', 'bottom']
    },
    hidden: false,
    hoverWidth: [1.5, 0, 5, 0.1],
    labelHighlightBold: true,
    physics: true,
    scaling: {
      min: [1, 0, 100, 1],
      max: [15, 0, 100, 1],
      label: {
        enabled: true,
        min: [14, 0, 200, 1],
        max: [30, 0, 200, 1],
        maxVisible: [30, 0, 200, 1],
        drawThreshold: [5, 0, 20, 1]
      }
    },
    selectionWidth: [1.5, 0, 5, 0.1],
    selfReferenceSize: [20, 0, 200, 1],
    shadow: {
      enabled: false,
      color: 'rgba(0,0,0,0.5)',
      size: [10, 0, 20, 1],
      x: [5, -30, 30, 1],
      y: [5, -30, 30, 1]
    },
    smooth: {
      enabled: true,
      type: ['dynamic', 'continuous', 'discrete', 'diagonalCross', 'straightCross', 'horizontal', 'vertical', 'curvedCW', 'curvedCCW', 'cubicBezier'],
      forceDirection: ['horizontal', 'vertical', 'none'],
      roundness: [0.5, 0, 1, 0.05]
    },
    width: [1, 0, 30, 1]
  },
  layout: {
    //randomSeed: [0, 0, 500, 1],
    //improvedLayout: true,
    hierarchical: {
      enabled: false,
      levelSeparation: [150, 20, 500, 5],
      nodeSpacing: [100, 20, 500, 5],
      treeSpacing: [200, 20, 500, 5],
      blockShifting: true,
      edgeMinimization: true,
      parentCentralization: true,
      direction: ['UD', 'DU', 'LR', 'RL'], // UD, DU, LR, RL
      sortMethod: ['hubsize', 'directed'] // hubsize, directed
    }
  },
  interaction: {
    dragNodes: true,
    dragView: true,
    hideEdgesOnDrag: false,
    hideNodesOnDrag: false,
    hover: false,
    keyboard: {
      enabled: false,
      speed: { x: [10, 0, 40, 1], y: [10, 0, 40, 1], zoom: [0.02, 0, 0.1, 0.005] },
      bindToWindow: true
    },
    multiselect: false,
    navigationButtons: false,
    selectable: true,
    selectConnectedEdges: true,
    hoverConnectedEdges: true,
    tooltipDelay: [300, 0, 1000, 25],
    zoomView: true
  },
  manipulation: {
    enabled: false,
    initiallyActive: false
  },
  physics: {
    enabled: true,
    barnesHut: {
      //theta: [0.5, 0.1, 1, 0.05],
      gravitationalConstant: [-2000, -30000, 0, 50],
      centralGravity: [0.3, 0, 10, 0.05],
      springLength: [95, 0, 500, 5],
      springConstant: [0.04, 0, 1.2, 0.005],
      damping: [0.09, 0, 1, 0.01],
      avoidOverlap: [0, 0, 1, 0.01]
    },
    forceAtlas2Based: {
      //theta: [0.5, 0.1, 1, 0.05],
      gravitationalConstant: [-50, -500, 0, 1],
      centralGravity: [0.01, 0, 1, 0.005],
      springLength: [95, 0, 500, 5],
      springConstant: [0.08, 0, 1.2, 0.005],
      damping: [0.4, 0, 1, 0.01],
      avoidOverlap: [0, 0, 1, 0.01]
    },
    repulsion: {
      centralGravity: [0.2, 0, 10, 0.05],
      springLength: [200, 0, 500, 5],
      springConstant: [0.05, 0, 1.2, 0.005],
      nodeDistance: [100, 0, 500, 5],
      damping: [0.09, 0, 1, 0.01]
    },
    hierarchicalRepulsion: {
      centralGravity: [0.2, 0, 10, 0.05],
      springLength: [100, 0, 500, 5],
      springConstant: [0.01, 0, 1.2, 0.005],
      nodeDistance: [120, 0, 500, 5],
      damping: [0.09, 0, 1, 0.01]
    },
    maxVelocity: [50, 0, 150, 1],
    minVelocity: [0.1, 0.01, 0.5, 0.01],
    solver: ['barnesHut', 'forceAtlas2Based', 'repulsion', 'hierarchicalRepulsion'],
    timestep: [0.5, 0.01, 1, 0.01]
    //adaptiveTimestep: true
  }
};

exports.allOptions = allOptions;
exports.configureOptions = configureOptions;

/***/ }),
/* 123 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var util = __webpack_require__(2);

// Graph3d
util.extend(exports, __webpack_require__(159));

// Timeline & Graph2d
util.extend(exports, __webpack_require__(177));

// Network
util.extend(exports, __webpack_require__(181));

/***/ }),
/* 124 */
/***/ (function(module, exports, __webpack_require__) {

__webpack_require__(49);
__webpack_require__(60);
module.exports = __webpack_require__(136);


/***/ }),
/* 125 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

var addToUnscopables = __webpack_require__(126);
var step = __webpack_require__(127);
var Iterators = __webpack_require__(31);
var toIObject = __webpack_require__(25);

// 22.1.3.4 Array.prototype.entries()
// 22.1.3.13 Array.prototype.keys()
// 22.1.3.29 Array.prototype.values()
// 22.1.3.30 Array.prototype[@@iterator]()
module.exports = __webpack_require__(79)(Array, 'Array', function (iterated, kind) {
  this._t = toIObject(iterated); // target
  this._i = 0;                   // next index
  this._k = kind;                // kind
// 22.1.5.2.1 %ArrayIteratorPrototype%.next()
}, function () {
  var O = this._t;
  var kind = this._k;
  var index = this._i++;
  if (!O || index >= O.length) {
    this._t = undefined;
    return step(1);
  }
  if (kind == 'keys') return step(0, index);
  if (kind == 'values') return step(0, O[index]);
  return step(0, [index, O[index]]);
}, 'values');

// argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
Iterators.Arguments = Iterators.Array;

addToUnscopables('keys');
addToUnscopables('values');
addToUnscopables('entries');


/***/ }),
/* 126 */
/***/ (function(module, exports) {

module.exports = function () { /* empty */ };


/***/ }),
/* 127 */
/***/ (function(module, exports) {

module.exports = function (done, value) {
  return { value: value, done: !!done };
};


/***/ }),
/* 128 */
/***/ (function(module, exports) {

module.exports = function (it) {
  if (typeof it != 'function') throw TypeError(it + ' is not a function!');
  return it;
};


/***/ }),
/* 129 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

var create = __webpack_require__(54);
var descriptor = __webpack_require__(39);
var setToStringTag = __webpack_require__(59);
var IteratorPrototype = {};

// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
__webpack_require__(26)(IteratorPrototype, __webpack_require__(13)('iterator'), function () { return this; });

module.exports = function (Constructor, NAME, next) {
  Constructor.prototype = create(IteratorPrototype, { next: descriptor(1, next) });
  setToStringTag(Constructor, NAME + ' Iterator');
};


/***/ }),
/* 130 */
/***/ (function(module, exports, __webpack_require__) {

var dP = __webpack_require__(20);
var anObject = __webpack_require__(27);
var getKeys = __webpack_require__(33);

module.exports = __webpack_require__(21) ? Object.defineProperties : function defineProperties(O, Properties) {
  anObject(O);
  var keys = getKeys(Properties);
  var length = keys.length;
  var i = 0;
  var P;
  while (length > i) dP.f(O, P = keys[i++], Properties[P]);
  return O;
};


/***/ }),
/* 131 */
/***/ (function(module, exports, __webpack_require__) {

// false -> Array#indexOf
// true  -> Array#includes
var toIObject = __webpack_require__(25);
var toLength = __webpack_require__(132);
var toAbsoluteIndex = __webpack_require__(133);
module.exports = function (IS_INCLUDES) {
  return function ($this, el, fromIndex) {
    var O = toIObject($this);
    var length = toLength(O.length);
    var index = toAbsoluteIndex(fromIndex, length);
    var value;
    // Array#includes uses SameValueZero equality algorithm
    // eslint-disable-next-line no-self-compare
    if (IS_INCLUDES && el != el) while (length > index) {
      value = O[index++];
      // eslint-disable-next-line no-self-compare
      if (value != value) return true;
    // Array#indexOf ignores holes, Array#includes - not
    } else for (;length > index; index++) if (IS_INCLUDES || index in O) {
      if (O[index] === el) return IS_INCLUDES || index || 0;
    } return !IS_INCLUDES && -1;
  };
};


/***/ }),
/* 132 */
/***/ (function(module, exports, __webpack_require__) {

// 7.1.15 ToLength
var toInteger = __webpack_require__(55);
var min = Math.min;
module.exports = function (it) {
  return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
};


/***/ }),
/* 133 */
/***/ (function(module, exports, __webpack_require__) {

var toInteger = __webpack_require__(55);
var max = Math.max;
var min = Math.min;
module.exports = function (index, length) {
  index = toInteger(index);
  return index < 0 ? max(index + length, 0) : min(index, length);
};


/***/ }),
/* 134 */
/***/ (function(module, exports, __webpack_require__) {

var document = __webpack_require__(18).document;
module.exports = document && document.documentElement;


/***/ }),
/* 135 */
/***/ (function(module, exports, __webpack_require__) {

var toInteger = __webpack_require__(55);
var defined = __webpack_require__(51);
// true  -> String#at
// false -> String#codePointAt
module.exports = function (TO_STRING) {
  return function (that, pos) {
    var s = String(defined(that));
    var i = toInteger(pos);
    var l = s.length;
    var a, b;
    if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
    a = s.charCodeAt(i);
    return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
      ? TO_STRING ? s.charAt(i) : a
      : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
  };
};


/***/ }),
/* 136 */
/***/ (function(module, exports, __webpack_require__) {

var anObject = __webpack_require__(27);
var get = __webpack_require__(137);
module.exports = __webpack_require__(7).getIterator = function (it) {
  var iterFn = get(it);
  if (typeof iterFn != 'function') throw TypeError(it + ' is not iterable!');
  return anObject(iterFn.call(it));
};


/***/ }),
/* 137 */
/***/ (function(module, exports, __webpack_require__) {

var classof = __webpack_require__(86);
var ITERATOR = __webpack_require__(13)('iterator');
var Iterators = __webpack_require__(31);
module.exports = __webpack_require__(7).getIteratorMethod = function (it) {
  if (it != undefined) return it[ITERATOR]
    || it['@@iterator']
    || Iterators[classof(it)];
};


/***/ }),
/* 138 */
/***/ (function(module, exports, __webpack_require__) {

__webpack_require__(139);
var $Object = __webpack_require__(7).Object;
module.exports = function create(P, D) {
  return $Object.create(P, D);
};


/***/ }),
/* 139 */
/***/ (function(module, exports, __webpack_require__) {

var $export = __webpack_require__(17);
// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
$export($export.S, 'Object', { create: __webpack_require__(54) });


/***/ }),
/* 140 */
/***/ (function(module, exports, __webpack_require__) {

__webpack_require__(141);
module.exports = __webpack_require__(7).Object.keys;


/***/ }),
/* 141 */
/***/ (function(module, exports, __webpack_require__) {

// 19.1.2.14 Object.keys(O)
var toObject = __webpack_require__(41);
var $keys = __webpack_require__(33);

__webpack_require__(87)('keys', function () {
  return function keys(it) {
    return $keys(toObject(it));
  };
});


/***/ }),
/* 142 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = { "default": __webpack_require__(143), __esModule: true };

/***/ }),
/* 143 */
/***/ (function(module, exports, __webpack_require__) {

__webpack_require__(60);
__webpack_require__(49);
module.exports = __webpack_require__(61).f('iterator');


/***/ }),
/* 144 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = { "default": __webpack_require__(145), __esModule: true };

/***/ }),
/* 145 */
/***/ (function(module, exports, __webpack_require__) {

__webpack_require__(146);
__webpack_require__(151);
__webpack_require__(152);
__webpack_require__(153);
module.exports = __webpack_require__(7).Symbol;


/***/ }),
/* 146 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

// ECMAScript 6 symbols shim
var global = __webpack_require__(18);
var has = __webpack_require__(22);
var DESCRIPTORS = __webpack_require__(21);
var $export = __webpack_require__(17);
var redefine = __webpack_require__(83);
var META = __webpack_require__(147).KEY;
var $fails = __webpack_require__(28);
var shared = __webpack_require__(57);
var setToStringTag = __webpack_require__(59);
var uid = __webpack_require__(40);
var wks = __webpack_require__(13);
var wksExt = __webpack_require__(61);
var wksDefine = __webpack_require__(62);
var enumKeys = __webpack_require__(148);
var isArray = __webpack_require__(149);
var anObject = __webpack_require__(27);
var toIObject = __webpack_require__(25);
var toPrimitive = __webpack_require__(53);
var createDesc = __webpack_require__(39);
var _create = __webpack_require__(54);
var gOPNExt = __webpack_require__(150);
var $GOPD = __webpack_require__(89);
var $DP = __webpack_require__(20);
var $keys = __webpack_require__(33);
var gOPD = $GOPD.f;
var dP = $DP.f;
var gOPN = gOPNExt.f;
var $Symbol = global.Symbol;
var $JSON = global.JSON;
var _stringify = $JSON && $JSON.stringify;
var PROTOTYPE = 'prototype';
var HIDDEN = wks('_hidden');
var TO_PRIMITIVE = wks('toPrimitive');
var isEnum = {}.propertyIsEnumerable;
var SymbolRegistry = shared('symbol-registry');
var AllSymbols = shared('symbols');
var OPSymbols = shared('op-symbols');
var ObjectProto = Object[PROTOTYPE];
var USE_NATIVE = typeof $Symbol == 'function';
var QObject = global.QObject;
// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
var setter = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;

// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
var setSymbolDesc = DESCRIPTORS && $fails(function () {
  return _create(dP({}, 'a', {
    get: function () { return dP(this, 'a', { value: 7 }).a; }
  })).a != 7;
}) ? function (it, key, D) {
  var protoDesc = gOPD(ObjectProto, key);
  if (protoDesc) delete ObjectProto[key];
  dP(it, key, D);
  if (protoDesc && it !== ObjectProto) dP(ObjectProto, key, protoDesc);
} : dP;

var wrap = function (tag) {
  var sym = AllSymbols[tag] = _create($Symbol[PROTOTYPE]);
  sym._k = tag;
  return sym;
};

var isSymbol = USE_NATIVE && typeof $Symbol.iterator == 'symbol' ? function (it) {
  return typeof it == 'symbol';
} : function (it) {
  return it instanceof $Symbol;
};

var $defineProperty = function defineProperty(it, key, D) {
  if (it === ObjectProto) $defineProperty(OPSymbols, key, D);
  anObject(it);
  key = toPrimitive(key, true);
  anObject(D);
  if (has(AllSymbols, key)) {
    if (!D.enumerable) {
      if (!has(it, HIDDEN)) dP(it, HIDDEN, createDesc(1, {}));
      it[HIDDEN][key] = true;
    } else {
      if (has(it, HIDDEN) && it[HIDDEN][key]) it[HIDDEN][key] = false;
      D = _create(D, { enumerable: createDesc(0, false) });
    } return setSymbolDesc(it, key, D);
  } return dP(it, key, D);
};
var $defineProperties = function defineProperties(it, P) {
  anObject(it);
  var keys = enumKeys(P = toIObject(P));
  var i = 0;
  var l = keys.length;
  var key;
  while (l > i) $defineProperty(it, key = keys[i++], P[key]);
  return it;
};
var $create = function create(it, P) {
  return P === undefined ? _create(it) : $defineProperties(_create(it), P);
};
var $propertyIsEnumerable = function propertyIsEnumerable(key) {
  var E = isEnum.call(this, key = toPrimitive(key, true));
  if (this === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return false;
  return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key] ? E : true;
};
var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key) {
  it = toIObject(it);
  key = toPrimitive(key, true);
  if (it === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return;
  var D = gOPD(it, key);
  if (D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) D.enumerable = true;
  return D;
};
var $getOwnPropertyNames = function getOwnPropertyNames(it) {
  var names = gOPN(toIObject(it));
  var result = [];
  var i = 0;
  var key;
  while (names.length > i) {
    if (!has(AllSymbols, key = names[i++]) && key != HIDDEN && key != META) result.push(key);
  } return result;
};
var $getOwnPropertySymbols = function getOwnPropertySymbols(it) {
  var IS_OP = it === ObjectProto;
  var names = gOPN(IS_OP ? OPSymbols : toIObject(it));
  var result = [];
  var i = 0;
  var key;
  while (names.length > i) {
    if (has(AllSymbols, key = names[i++]) && (IS_OP ? has(ObjectProto, key) : true)) result.push(AllSymbols[key]);
  } return result;
};

// 19.4.1.1 Symbol([description])
if (!USE_NATIVE) {
  $Symbol = function Symbol() {
    if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor!');
    var tag = uid(arguments.length > 0 ? arguments[0] : undefined);
    var $set = function (value) {
      if (this === ObjectProto) $set.call(OPSymbols, value);
      if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
      setSymbolDesc(this, tag, createDesc(1, value));
    };
    if (DESCRIPTORS && setter) setSymbolDesc(ObjectProto, tag, { configurable: true, set: $set });
    return wrap(tag);
  };
  redefine($Symbol[PROTOTYPE], 'toString', function toString() {
    return this._k;
  });

  $GOPD.f = $getOwnPropertyDescriptor;
  $DP.f = $defineProperty;
  __webpack_require__(88).f = gOPNExt.f = $getOwnPropertyNames;
  __webpack_require__(42).f = $propertyIsEnumerable;
  __webpack_require__(63).f = $getOwnPropertySymbols;

  if (DESCRIPTORS && !__webpack_require__(52)) {
    redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true);
  }

  wksExt.f = function (name) {
    return wrap(wks(name));
  };
}

$export($export.G + $export.W + $export.F * !USE_NATIVE, { Symbol: $Symbol });

for (var es6Symbols = (
  // 19.4.2.2, 19.4.2.3, 19.4.2.4, 19.4.2.6, 19.4.2.8, 19.4.2.9, 19.4.2.10, 19.4.2.11, 19.4.2.12, 19.4.2.13, 19.4.2.14
  'hasInstance,isConcatSpreadable,iterator,match,replace,search,species,split,toPrimitive,toStringTag,unscopables'
).split(','), j = 0; es6Symbols.length > j;)wks(es6Symbols[j++]);

for (var wellKnownSymbols = $keys(wks.store), k = 0; wellKnownSymbols.length > k;) wksDefine(wellKnownSymbols[k++]);

$export($export.S + $export.F * !USE_NATIVE, 'Symbol', {
  // 19.4.2.1 Symbol.for(key)
  'for': function (key) {
    return has(SymbolRegistry, key += '')
      ? SymbolRegistry[key]
      : SymbolRegistry[key] = $Symbol(key);
  },
  // 19.4.2.5 Symbol.keyFor(sym)
  keyFor: function keyFor(sym) {
    if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol!');
    for (var key in SymbolRegistry) if (SymbolRegistry[key] === sym) return key;
  },
  useSetter: function () { setter = true; },
  useSimple: function () { setter = false; }
});

$export($export.S + $export.F * !USE_NATIVE, 'Object', {
  // 19.1.2.2 Object.create(O [, Properties])
  create: $create,
  // 19.1.2.4 Object.defineProperty(O, P, Attributes)
  defineProperty: $defineProperty,
  // 19.1.2.3 Object.defineProperties(O, Properties)
  defineProperties: $defineProperties,
  // 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
  getOwnPropertyDescriptor: $getOwnPropertyDescriptor,
  // 19.1.2.7 Object.getOwnPropertyNames(O)
  getOwnPropertyNames: $getOwnPropertyNames,
  // 19.1.2.8 Object.getOwnPropertySymbols(O)
  getOwnPropertySymbols: $getOwnPropertySymbols
});

// 24.3.2 JSON.stringify(value [, replacer [, space]])
$JSON && $export($export.S + $export.F * (!USE_NATIVE || $fails(function () {
  var S = $Symbol();
  // MS Edge converts symbol values to JSON as {}
  // WebKit converts symbol values to JSON as null
  // V8 throws on boxed symbols
  return _stringify([S]) != '[null]' || _stringify({ a: S }) != '{}' || _stringify(Object(S)) != '{}';
})), 'JSON', {
  stringify: function stringify(it) {
    if (it === undefined || isSymbol(it)) return; // IE8 returns string on undefined
    var args = [it];
    var i = 1;
    var replacer, $replacer;
    while (arguments.length > i) args.push(arguments[i++]);
    replacer = args[1];
    if (typeof replacer == 'function') $replacer = replacer;
    if ($replacer || !isArray(replacer)) replacer = function (key, value) {
      if ($replacer) value = $replacer.call(this, key, value);
      if (!isSymbol(value)) return value;
    };
    args[1] = replacer;
    return _stringify.apply($JSON, args);
  }
});

// 19.4.3.4 Symbol.prototype[@@toPrimitive](hint)
$Symbol[PROTOTYPE][TO_PRIMITIVE] || __webpack_require__(26)($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);
// 19.4.3.5 Symbol.prototype[@@toStringTag]
setToStringTag($Symbol, 'Symbol');
// 20.2.1.9 Math[@@toStringTag]
setToStringTag(Math, 'Math', true);
// 24.3.3 JSON[@@toStringTag]
setToStringTag(global.JSON, 'JSON', true);


/***/ }),
/* 147 */
/***/ (function(module, exports, __webpack_require__) {

var META = __webpack_require__(40)('meta');
var isObject = __webpack_require__(32);
var has = __webpack_require__(22);
var setDesc = __webpack_require__(20).f;
var id = 0;
var isExtensible = Object.isExtensible || function () {
  return true;
};
var FREEZE = !__webpack_require__(28)(function () {
  return isExtensible(Object.preventExtensions({}));
});
var setMeta = function (it) {
  setDesc(it, META, { value: {
    i: 'O' + ++id, // object ID
    w: {}          // weak collections IDs
  } });
};
var fastKey = function (it, create) {
  // return primitive with prefix
  if (!isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
  if (!has(it, META)) {
    // can't set metadata to uncaught frozen object
    if (!isExtensible(it)) return 'F';
    // not necessary to add metadata
    if (!create) return 'E';
    // add missing metadata
    setMeta(it);
  // return object ID
  } return it[META].i;
};
var getWeak = function (it, create) {
  if (!has(it, META)) {
    // can't set metadata to uncaught frozen object
    if (!isExtensible(it)) return true;
    // not necessary to add metadata
    if (!create) return false;
    // add missing metadata
    setMeta(it);
  // return hash weak collections IDs
  } return it[META].w;
};
// add metadata on freeze-family methods calling
var onFreeze = function (it) {
  if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it);
  return it;
};
var meta = module.exports = {
  KEY: META,
  NEED: false,
  fastKey: fastKey,
  getWeak: getWeak,
  onFreeze: onFreeze
};


/***/ }),
/* 148 */
/***/ (function(module, exports, __webpack_require__) {

// all enumerable object keys, includes symbols
var getKeys = __webpack_require__(33);
var gOPS = __webpack_require__(63);
var pIE = __webpack_require__(42);
module.exports = function (it) {
  var result = getKeys(it);
  var getSymbols = gOPS.f;
  if (getSymbols) {
    var symbols = getSymbols(it);
    var isEnum = pIE.f;
    var i = 0;
    var key;
    while (symbols.length > i) if (isEnum.call(it, key = symbols[i++])) result.push(key);
  } return result;
};


/***/ }),
/* 149 */
/***/ (function(module, exports, __webpack_require__) {

// 7.2.2 IsArray(argument)
var cof = __webpack_require__(50);
module.exports = Array.isArray || function isArray(arg) {
  return cof(arg) == 'Array';
};


/***/ }),
/* 150 */
/***/ (function(module, exports, __webpack_require__) {

// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window
var toIObject = __webpack_require__(25);
var gOPN = __webpack_require__(88).f;
var toString = {}.toString;

var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
  ? Object.getOwnPropertyNames(window) : [];

var getWindowNames = function (it) {
  try {
    return gOPN(it);
  } catch (e) {
    return windowNames.slice();
  }
};

module.exports.f = function getOwnPropertyNames(it) {
  return windowNames && toString.call(it) == '[object Window]' ? getWindowNames(it) : gOPN(toIObject(it));
};


/***/ }),
/* 151 */
/***/ (function(module, exports) {



/***/ }),
/* 152 */
/***/ (function(module, exports, __webpack_require__) {

__webpack_require__(62)('asyncIterator');


/***/ }),
/* 153 */
/***/ (function(module, exports, __webpack_require__) {

__webpack_require__(62)('observable');


/***/ }),
/* 154 */
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(module) {var require;//! moment.js
//! version : 2.19.1
//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
//! license : MIT
//! momentjs.com

;(function (global, factory) {
     true ? module.exports = factory() :
    typeof define === 'function' && define.amd ? define(factory) :
    global.moment = factory()
}(this, (function () { 'use strict';

var hookCallback;

function hooks () {
    return hookCallback.apply(null, arguments);
}

// This is done to register the method called with moment()
// without creating circular dependencies.
function setHookCallback (callback) {
    hookCallback = callback;
}

function isArray(input) {
    return input instanceof Array || Object.prototype.toString.call(input) === '[object Array]';
}

function isObject(input) {
    // IE8 will treat undefined and null as object if it wasn't for
    // input != null
    return input != null && Object.prototype.toString.call(input) === '[object Object]';
}

function isObjectEmpty(obj) {
    if (Object.getOwnPropertyNames) {
        return (Object.getOwnPropertyNames(obj).length === 0);
    } else {
        var k;
        for (k in obj) {
            if (obj.hasOwnProperty(k)) {
                return false;
            }
        }
        return true;
    }
}

function isUndefined(input) {
    return input === void 0;
}

function isNumber(input) {
    return typeof input === 'number' || Object.prototype.toString.call(input) === '[object Number]';
}

function isDate(input) {
    return input instanceof Date || Object.prototype.toString.call(input) === '[object Date]';
}

function map(arr, fn) {
    var res = [], i;
    for (i = 0; i < arr.length; ++i) {
        res.push(fn(arr[i], i));
    }
    return res;
}

function hasOwnProp(a, b) {
    return Object.prototype.hasOwnProperty.call(a, b);
}

function extend(a, b) {
    for (var i in b) {
        if (hasOwnProp(b, i)) {
            a[i] = b[i];
        }
    }

    if (hasOwnProp(b, 'toString')) {
        a.toString = b.toString;
    }

    if (hasOwnProp(b, 'valueOf')) {
        a.valueOf = b.valueOf;
    }

    return a;
}

function createUTC (input, format, locale, strict) {
    return createLocalOrUTC(input, format, locale, strict, true).utc();
}

function defaultParsingFlags() {
    // We need to deep clone this object.
    return {
        empty           : false,
        unusedTokens    : [],
        unusedInput     : [],
        overflow        : -2,
        charsLeftOver   : 0,
        nullInput       : false,
        invalidMonth    : null,
        invalidFormat   : false,
        userInvalidated : false,
        iso             : false,
        parsedDateParts : [],
        meridiem        : null,
        rfc2822         : false,
        weekdayMismatch : false
    };
}

function getParsingFlags(m) {
    if (m._pf == null) {
        m._pf = defaultParsingFlags();
    }
    return m._pf;
}

var some;
if (Array.prototype.some) {
    some = Array.prototype.some;
} else {
    some = function (fun) {
        var t = Object(this);
        var len = t.length >>> 0;

        for (var i = 0; i < len; i++) {
            if (i in t && fun.call(this, t[i], i, t)) {
                return true;
            }
        }

        return false;
    };
}

function isValid(m) {
    if (m._isValid == null) {
        var flags = getParsingFlags(m);
        var parsedParts = some.call(flags.parsedDateParts, function (i) {
            return i != null;
        });
        var isNowValid = !isNaN(m._d.getTime()) &&
            flags.overflow < 0 &&
            !flags.empty &&
            !flags.invalidMonth &&
            !flags.invalidWeekday &&
            !flags.weekdayMismatch &&
            !flags.nullInput &&
            !flags.invalidFormat &&
            !flags.userInvalidated &&
            (!flags.meridiem || (flags.meridiem && parsedParts));

        if (m._strict) {
            isNowValid = isNowValid &&
                flags.charsLeftOver === 0 &&
                flags.unusedTokens.length === 0 &&
                flags.bigHour === undefined;
        }

        if (Object.isFrozen == null || !Object.isFrozen(m)) {
            m._isValid = isNowValid;
        }
        else {
            return isNowValid;
        }
    }
    return m._isValid;
}

function createInvalid (flags) {
    var m = createUTC(NaN);
    if (flags != null) {
        extend(getParsingFlags(m), flags);
    }
    else {
        getParsingFlags(m).userInvalidated = true;
    }

    return m;
}

// Plugins that add properties should also add the key here (null value),
// so we can properly clone ourselves.
var momentProperties = hooks.momentProperties = [];

function copyConfig(to, from) {
    var i, prop, val;

    if (!isUndefined(from._isAMomentObject)) {
        to._isAMomentObject = from._isAMomentObject;
    }
    if (!isUndefined(from._i)) {
        to._i = from._i;
    }
    if (!isUndefined(from._f)) {
        to._f = from._f;
    }
    if (!isUndefined(from._l)) {
        to._l = from._l;
    }
    if (!isUndefined(from._strict)) {
        to._strict = from._strict;
    }
    if (!isUndefined(from._tzm)) {
        to._tzm = from._tzm;
    }
    if (!isUndefined(from._isUTC)) {
        to._isUTC = from._isUTC;
    }
    if (!isUndefined(from._offset)) {
        to._offset = from._offset;
    }
    if (!isUndefined(from._pf)) {
        to._pf = getParsingFlags(from);
    }
    if (!isUndefined(from._locale)) {
        to._locale = from._locale;
    }

    if (momentProperties.length > 0) {
        for (i = 0; i < momentProperties.length; i++) {
            prop = momentProperties[i];
            val = from[prop];
            if (!isUndefined(val)) {
                to[prop] = val;
            }
        }
    }

    return to;
}

var updateInProgress = false;

// Moment prototype object
function Moment(config) {
    copyConfig(this, config);
    this._d = new Date(config._d != null ? config._d.getTime() : NaN);
    if (!this.isValid()) {
        this._d = new Date(NaN);
    }
    // Prevent infinite loop in case updateOffset creates new moment
    // objects.
    if (updateInProgress === false) {
        updateInProgress = true;
        hooks.updateOffset(this);
        updateInProgress = false;
    }
}

function isMoment (obj) {
    return obj instanceof Moment || (obj != null && obj._isAMomentObject != null);
}

function absFloor (number) {
    if (number < 0) {
        // -0 -> 0
        return Math.ceil(number) || 0;
    } else {
        return Math.floor(number);
    }
}

function toInt(argumentForCoercion) {
    var coercedNumber = +argumentForCoercion,
        value = 0;

    if (coercedNumber !== 0 && isFinite(coercedNumber)) {
        value = absFloor(coercedNumber);
    }

    return value;
}

// compare two arrays, return the number of differences
function compareArrays(array1, array2, dontConvert) {
    var len = Math.min(array1.length, array2.length),
        lengthDiff = Math.abs(array1.length - array2.length),
        diffs = 0,
        i;
    for (i = 0; i < len; i++) {
        if ((dontConvert && array1[i] !== array2[i]) ||
            (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
            diffs++;
        }
    }
    return diffs + lengthDiff;
}

function warn(msg) {
    if (hooks.suppressDeprecationWarnings === false &&
            (typeof console !==  'undefined') && console.warn) {
        console.warn('Deprecation warning: ' + msg);
    }
}

function deprecate(msg, fn) {
    var firstTime = true;

    return extend(function () {
        if (hooks.deprecationHandler != null) {
            hooks.deprecationHandler(null, msg);
        }
        if (firstTime) {
            var args = [];
            var arg;
            for (var i = 0; i < arguments.length; i++) {
                arg = '';
                if (typeof arguments[i] === 'object') {
                    arg += '\n[' + i + '] ';
                    for (var key in arguments[0]) {
                        arg += key + ': ' + arguments[0][key] + ', ';
                    }
                    arg = arg.slice(0, -2); // Remove trailing comma and space
                } else {
                    arg = arguments[i];
                }
                args.push(arg);
            }
            warn(msg + '\nArguments: ' + Array.prototype.slice.call(args).join('') + '\n' + (new Error()).stack);
            firstTime = false;
        }
        return fn.apply(this, arguments);
    }, fn);
}

var deprecations = {};

function deprecateSimple(name, msg) {
    if (hooks.deprecationHandler != null) {
        hooks.deprecationHandler(name, msg);
    }
    if (!deprecations[name]) {
        warn(msg);
        deprecations[name] = true;
    }
}

hooks.suppressDeprecationWarnings = false;
hooks.deprecationHandler = null;

function isFunction(input) {
    return input instanceof Function || Object.prototype.toString.call(input) === '[object Function]';
}

function set (config) {
    var prop, i;
    for (i in config) {
        prop = config[i];
        if (isFunction(prop)) {
            this[i] = prop;
        } else {
            this['_' + i] = prop;
        }
    }
    this._config = config;
    // Lenient ordinal parsing accepts just a number in addition to
    // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
    // TODO: Remove "ordinalParse" fallback in next major release.
    this._dayOfMonthOrdinalParseLenient = new RegExp(
        (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
            '|' + (/\d{1,2}/).source);
}

function mergeConfigs(parentConfig, childConfig) {
    var res = extend({}, parentConfig), prop;
    for (prop in childConfig) {
        if (hasOwnProp(childConfig, prop)) {
            if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
                res[prop] = {};
                extend(res[prop], parentConfig[prop]);
                extend(res[prop], childConfig[prop]);
            } else if (childConfig[prop] != null) {
                res[prop] = childConfig[prop];
            } else {
                delete res[prop];
            }
        }
    }
    for (prop in parentConfig) {
        if (hasOwnProp(parentConfig, prop) &&
                !hasOwnProp(childConfig, prop) &&
                isObject(parentConfig[prop])) {
            // make sure changes to properties don't modify parent config
            res[prop] = extend({}, res[prop]);
        }
    }
    return res;
}

function Locale(config) {
    if (config != null) {
        this.set(config);
    }
}

var keys;

if (Object.keys) {
    keys = Object.keys;
} else {
    keys = function (obj) {
        var i, res = [];
        for (i in obj) {
            if (hasOwnProp(obj, i)) {
                res.push(i);
            }
        }
        return res;
    };
}

var defaultCalendar = {
    sameDay : '[Today at] LT',
    nextDay : '[Tomorrow at] LT',
    nextWeek : 'dddd [at] LT',
    lastDay : '[Yesterday at] LT',
    lastWeek : '[Last] dddd [at] LT',
    sameElse : 'L'
};

function calendar (key, mom, now) {
    var output = this._calendar[key] || this._calendar['sameElse'];
    return isFunction(output) ? output.call(mom, now) : output;
}

var defaultLongDateFormat = {
    LTS  : 'h:mm:ss A',
    LT   : 'h:mm A',
    L    : 'MM/DD/YYYY',
    LL   : 'MMMM D, YYYY',
    LLL  : 'MMMM D, YYYY h:mm A',
    LLLL : 'dddd, MMMM D, YYYY h:mm A'
};

function longDateFormat (key) {
    var format = this._longDateFormat[key],
        formatUpper = this._longDateFormat[key.toUpperCase()];

    if (format || !formatUpper) {
        return format;
    }

    this._longDateFormat[key] = formatUpper.replace(/MMMM|MM|DD|dddd/g, function (val) {
        return val.slice(1);
    });

    return this._longDateFormat[key];
}

var defaultInvalidDate = 'Invalid date';

function invalidDate () {
    return this._invalidDate;
}

var defaultOrdinal = '%d';
var defaultDayOfMonthOrdinalParse = /\d{1,2}/;

function ordinal (number) {
    return this._ordinal.replace('%d', number);
}

var defaultRelativeTime = {
    future : 'in %s',
    past   : '%s ago',
    s  : 'a few seconds',
    ss : '%d seconds',
    m  : 'a minute',
    mm : '%d minutes',
    h  : 'an hour',
    hh : '%d hours',
    d  : 'a day',
    dd : '%d days',
    M  : 'a month',
    MM : '%d months',
    y  : 'a year',
    yy : '%d years'
};

function relativeTime (number, withoutSuffix, string, isFuture) {
    var output = this._relativeTime[string];
    return (isFunction(output)) ?
        output(number, withoutSuffix, string, isFuture) :
        output.replace(/%d/i, number);
}

function pastFuture (diff, output) {
    var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
    return isFunction(format) ? format(output) : format.replace(/%s/i, output);
}

var aliases = {};

function addUnitAlias (unit, shorthand) {
    var lowerCase = unit.toLowerCase();
    aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
}

function normalizeUnits(units) {
    return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined;
}

function normalizeObjectUnits(inputObject) {
    var normalizedInput = {},
        normalizedProp,
        prop;

    for (prop in inputObject) {
        if (hasOwnProp(inputObject, prop)) {
            normalizedProp = normalizeUnits(prop);
            if (normalizedProp) {
                normalizedInput[normalizedProp] = inputObject[prop];
            }
        }
    }

    return normalizedInput;
}

var priorities = {};

function addUnitPriority(unit, priority) {
    priorities[unit] = priority;
}

function getPrioritizedUnits(unitsObj) {
    var units = [];
    for (var u in unitsObj) {
        units.push({unit: u, priority: priorities[u]});
    }
    units.sort(function (a, b) {
        return a.priority - b.priority;
    });
    return units;
}

function zeroFill(number, targetLength, forceSign) {
    var absNumber = '' + Math.abs(number),
        zerosToFill = targetLength - absNumber.length,
        sign = number >= 0;
    return (sign ? (forceSign ? '+' : '') : '-') +
        Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber;
}

var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g;

var localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g;

var formatFunctions = {};

var formatTokenFunctions = {};

// token:    'M'
// padded:   ['MM', 2]
// ordinal:  'Mo'
// callback: function () { this.month() + 1 }
function addFormatToken (token, padded, ordinal, callback) {
    var func = callback;
    if (typeof callback === 'string') {
        func = function () {
            return this[callback]();
        };
    }
    if (token) {
        formatTokenFunctions[token] = func;
    }
    if (padded) {
        formatTokenFunctions[padded[0]] = function () {
            return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
        };
    }
    if (ordinal) {
        formatTokenFunctions[ordinal] = function () {
            return this.localeData().ordinal(func.apply(this, arguments), token);
        };
    }
}

function removeFormattingTokens(input) {
    if (input.match(/\[[\s\S]/)) {
        return input.replace(/^\[|\]$/g, '');
    }
    return input.replace(/\\/g, '');
}

function makeFormatFunction(format) {
    var array = format.match(formattingTokens), i, length;

    for (i = 0, length = array.length; i < length; i++) {
        if (formatTokenFunctions[array[i]]) {
            array[i] = formatTokenFunctions[array[i]];
        } else {
            array[i] = removeFormattingTokens(array[i]);
        }
    }

    return function (mom) {
        var output = '', i;
        for (i = 0; i < length; i++) {
            output += isFunction(array[i]) ? array[i].call(mom, format) : array[i];
        }
        return output;
    };
}

// format date using native date object
function formatMoment(m, format) {
    if (!m.isValid()) {
        return m.localeData().invalidDate();
    }

    format = expandFormat(format, m.localeData());
    formatFunctions[format] = formatFunctions[format] || makeFormatFunction(format);

    return formatFunctions[format](m);
}

function expandFormat(format, locale) {
    var i = 5;

    function replaceLongDateFormatTokens(input) {
        return locale.longDateFormat(input) || input;
    }

    localFormattingTokens.lastIndex = 0;
    while (i >= 0 && localFormattingTokens.test(format)) {
        format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
        localFormattingTokens.lastIndex = 0;
        i -= 1;
    }

    return format;
}

var match1         = /\d/;            //       0 - 9
var match2         = /\d\d/;          //      00 - 99
var match3         = /\d{3}/;         //     000 - 999
var match4         = /\d{4}/;         //    0000 - 9999
var match6         = /[+-]?\d{6}/;    // -999999 - 999999
var match1to2      = /\d\d?/;         //       0 - 99
var match3to4      = /\d\d\d\d?/;     //     999 - 9999
var match5to6      = /\d\d\d\d\d\d?/; //   99999 - 999999
var match1to3      = /\d{1,3}/;       //       0 - 999
var match1to4      = /\d{1,4}/;       //       0 - 9999
var match1to6      = /[+-]?\d{1,6}/;  // -999999 - 999999

var matchUnsigned  = /\d+/;           //       0 - inf
var matchSigned    = /[+-]?\d+/;      //    -inf - inf

var matchOffset    = /Z|[+-]\d\d:?\d\d/gi; // +00:00 -00:00 +0000 -0000 or Z
var matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi; // +00 -00 +00:00 -00:00 +0000 -0000 or Z

var matchTimestamp = /[+-]?\d+(\.\d{1,3})?/; // 123456789 123456789.123

// any word (or two) characters or numbers including two/three word month in arabic.
// includes scottish gaelic two word and hyphenated months
var matchWord = /[0-9]*['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+|[\u0600-\u06FF\/]+(\s*?[\u0600-\u06FF]+){1,2}/i;


var regexes = {};

function addRegexToken (token, regex, strictRegex) {
    regexes[token] = isFunction(regex) ? regex : function (isStrict, localeData) {
        return (isStrict && strictRegex) ? strictRegex : regex;
    };
}

function getParseRegexForToken (token, config) {
    if (!hasOwnProp(regexes, token)) {
        return new RegExp(unescapeFormat(token));
    }

    return regexes[token](config._strict, config._locale);
}

// Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
function unescapeFormat(s) {
    return regexEscape(s.replace('\\', '').replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
        return p1 || p2 || p3 || p4;
    }));
}

function regexEscape(s) {
    return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
}

var tokens = {};

function addParseToken (token, callback) {
    var i, func = callback;
    if (typeof token === 'string') {
        token = [token];
    }
    if (isNumber(callback)) {
        func = function (input, array) {
            array[callback] = toInt(input);
        };
    }
    for (i = 0; i < token.length; i++) {
        tokens[token[i]] = func;
    }
}

function addWeekParseToken (token, callback) {
    addParseToken(token, function (input, array, config, token) {
        config._w = config._w || {};
        callback(input, config._w, config, token);
    });
}

function addTimeToArrayFromToken(token, input, config) {
    if (input != null && hasOwnProp(tokens, token)) {
        tokens[token](input, config._a, config, token);
    }
}

var YEAR = 0;
var MONTH = 1;
var DATE = 2;
var HOUR = 3;
var MINUTE = 4;
var SECOND = 5;
var MILLISECOND = 6;
var WEEK = 7;
var WEEKDAY = 8;

// FORMATTING

addFormatToken('Y', 0, 0, function () {
    var y = this.year();
    return y <= 9999 ? '' + y : '+' + y;
});

addFormatToken(0, ['YY', 2], 0, function () {
    return this.year() % 100;
});

addFormatToken(0, ['YYYY',   4],       0, 'year');
addFormatToken(0, ['YYYYY',  5],       0, 'year');
addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');

// ALIASES

addUnitAlias('year', 'y');

// PRIORITIES

addUnitPriority('year', 1);

// PARSING

addRegexToken('Y',      matchSigned);
addRegexToken('YY',     match1to2, match2);
addRegexToken('YYYY',   match1to4, match4);
addRegexToken('YYYYY',  match1to6, match6);
addRegexToken('YYYYYY', match1to6, match6);

addParseToken(['YYYYY', 'YYYYYY'], YEAR);
addParseToken('YYYY', function (input, array) {
    array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
});
addParseToken('YY', function (input, array) {
    array[YEAR] = hooks.parseTwoDigitYear(input);
});
addParseToken('Y', function (input, array) {
    array[YEAR] = parseInt(input, 10);
});

// HELPERS

function daysInYear(year) {
    return isLeapYear(year) ? 366 : 365;
}

function isLeapYear(year) {
    return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
}

// HOOKS

hooks.parseTwoDigitYear = function (input) {
    return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
};

// MOMENTS

var getSetYear = makeGetSet('FullYear', true);

function getIsLeapYear () {
    return isLeapYear(this.year());
}

function makeGetSet (unit, keepTime) {
    return function (value) {
        if (value != null) {
            set$1(this, unit, value);
            hooks.updateOffset(this, keepTime);
            return this;
        } else {
            return get(this, unit);
        }
    };
}

function get (mom, unit) {
    return mom.isValid() ?
        mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
}

function set$1 (mom, unit, value) {
    if (mom.isValid() && !isNaN(value)) {
        if (unit === 'FullYear' && isLeapYear(mom.year())) {
            mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value, mom.month(), daysInMonth(value, mom.month()));
        }
        else {
            mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
        }
    }
}

// MOMENTS

function stringGet (units) {
    units = normalizeUnits(units);
    if (isFunction(this[units])) {
        return this[units]();
    }
    return this;
}


function stringSet (units, value) {
    if (typeof units === 'object') {
        units = normalizeObjectUnits(units);
        var prioritized = getPrioritizedUnits(units);
        for (var i = 0; i < prioritized.length; i++) {
            this[prioritized[i].unit](units[prioritized[i].unit]);
        }
    } else {
        units = normalizeUnits(units);
        if (isFunction(this[units])) {
            return this[units](value);
        }
    }
    return this;
}

function mod(n, x) {
    return ((n % x) + x) % x;
}

var indexOf;

if (Array.prototype.indexOf) {
    indexOf = Array.prototype.indexOf;
} else {
    indexOf = function (o) {
        // I know
        var i;
        for (i = 0; i < this.length; ++i) {
            if (this[i] === o) {
                return i;
            }
        }
        return -1;
    };
}

function daysInMonth(year, month) {
    if (isNaN(year) || isNaN(month)) {
        return NaN;
    }
    var modMonth = mod(month, 12);
    year += (month - modMonth) / 12;
    return modMonth === 1 ? (isLeapYear(year) ? 29 : 28) : (31 - modMonth % 7 % 2);
}

// FORMATTING

addFormatToken('M', ['MM', 2], 'Mo', function () {
    return this.month() + 1;
});

addFormatToken('MMM', 0, 0, function (format) {
    return this.localeData().monthsShort(this, format);
});

addFormatToken('MMMM', 0, 0, function (format) {
    return this.localeData().months(this, format);
});

// ALIASES

addUnitAlias('month', 'M');

// PRIORITY

addUnitPriority('month', 8);

// PARSING

addRegexToken('M',    match1to2);
addRegexToken('MM',   match1to2, match2);
addRegexToken('MMM',  function (isStrict, locale) {
    return locale.monthsShortRegex(isStrict);
});
addRegexToken('MMMM', function (isStrict, locale) {
    return locale.monthsRegex(isStrict);
});

addParseToken(['M', 'MM'], function (input, array) {
    array[MONTH] = toInt(input) - 1;
});

addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
    var month = config._locale.monthsParse(input, token, config._strict);
    // if we didn't find a month name, mark the date as invalid.
    if (month != null) {
        array[MONTH] = month;
    } else {
        getParsingFlags(config).invalidMonth = input;
    }
});

// LOCALES

var MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/;
var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_');
function localeMonths (m, format) {
    if (!m) {
        return isArray(this._months) ? this._months :
            this._months['standalone'];
    }
    return isArray(this._months) ? this._months[m.month()] :
        this._months[(this._months.isFormat || MONTHS_IN_FORMAT).test(format) ? 'format' : 'standalone'][m.month()];
}

var defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_');
function localeMonthsShort (m, format) {
    if (!m) {
        return isArray(this._monthsShort) ? this._monthsShort :
            this._monthsShort['standalone'];
    }
    return isArray(this._monthsShort) ? this._monthsShort[m.month()] :
        this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()];
}

function handleStrictParse(monthName, format, strict) {
    var i, ii, mom, llc = monthName.toLocaleLowerCase();
    if (!this._monthsParse) {
        // this is not used
        this._monthsParse = [];
        this._longMonthsParse = [];
        this._shortMonthsParse = [];
        for (i = 0; i < 12; ++i) {
            mom = createUTC([2000, i]);
            this._shortMonthsParse[i] = this.monthsShort(mom, '').toLocaleLowerCase();
            this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
        }
    }

    if (strict) {
        if (format === 'MMM') {
            ii = indexOf.call(this._shortMonthsParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf.call(this._longMonthsParse, llc);
            return ii !== -1 ? ii : null;
        }
    } else {
        if (format === 'MMM') {
            ii = indexOf.call(this._shortMonthsParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._longMonthsParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf.call(this._longMonthsParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._shortMonthsParse, llc);
            return ii !== -1 ? ii : null;
        }
    }
}

function localeMonthsParse (monthName, format, strict) {
    var i, mom, regex;

    if (this._monthsParseExact) {
        return handleStrictParse.call(this, monthName, format, strict);
    }

    if (!this._monthsParse) {
        this._monthsParse = [];
        this._longMonthsParse = [];
        this._shortMonthsParse = [];
    }

    // TODO: add sorting
    // Sorting makes sure if one month (or abbr) is a prefix of another
    // see sorting in computeMonthsParse
    for (i = 0; i < 12; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, i]);
        if (strict && !this._longMonthsParse[i]) {
            this._longMonthsParse[i] = new RegExp('^' + this.months(mom, '').replace('.', '') + '$', 'i');
            this._shortMonthsParse[i] = new RegExp('^' + this.monthsShort(mom, '').replace('.', '') + '$', 'i');
        }
        if (!strict && !this._monthsParse[i]) {
            regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
            this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
        }
        // test the regex
        if (strict && format === 'MMMM' && this._longMonthsParse[i].test(monthName)) {
            return i;
        } else if (strict && format === 'MMM' && this._shortMonthsParse[i].test(monthName)) {
            return i;
        } else if (!strict && this._monthsParse[i].test(monthName)) {
            return i;
        }
    }
}

// MOMENTS

function setMonth (mom, value) {
    var dayOfMonth;

    if (!mom.isValid()) {
        // No op
        return mom;
    }

    if (typeof value === 'string') {
        if (/^\d+$/.test(value)) {
            value = toInt(value);
        } else {
            value = mom.localeData().monthsParse(value);
            // TODO: Another silent failure?
            if (!isNumber(value)) {
                return mom;
            }
        }
    }

    dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
    mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
    return mom;
}

function getSetMonth (value) {
    if (value != null) {
        setMonth(this, value);
        hooks.updateOffset(this, true);
        return this;
    } else {
        return get(this, 'Month');
    }
}

function getDaysInMonth () {
    return daysInMonth(this.year(), this.month());
}

var defaultMonthsShortRegex = matchWord;
function monthsShortRegex (isStrict) {
    if (this._monthsParseExact) {
        if (!hasOwnProp(this, '_monthsRegex')) {
            computeMonthsParse.call(this);
        }
        if (isStrict) {
            return this._monthsShortStrictRegex;
        } else {
            return this._monthsShortRegex;
        }
    } else {
        if (!hasOwnProp(this, '_monthsShortRegex')) {
            this._monthsShortRegex = defaultMonthsShortRegex;
        }
        return this._monthsShortStrictRegex && isStrict ?
            this._monthsShortStrictRegex : this._monthsShortRegex;
    }
}

var defaultMonthsRegex = matchWord;
function monthsRegex (isStrict) {
    if (this._monthsParseExact) {
        if (!hasOwnProp(this, '_monthsRegex')) {
            computeMonthsParse.call(this);
        }
        if (isStrict) {
            return this._monthsStrictRegex;
        } else {
            return this._monthsRegex;
        }
    } else {
        if (!hasOwnProp(this, '_monthsRegex')) {
            this._monthsRegex = defaultMonthsRegex;
        }
        return this._monthsStrictRegex && isStrict ?
            this._monthsStrictRegex : this._monthsRegex;
    }
}

function computeMonthsParse () {
    function cmpLenRev(a, b) {
        return b.length - a.length;
    }

    var shortPieces = [], longPieces = [], mixedPieces = [],
        i, mom;
    for (i = 0; i < 12; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, i]);
        shortPieces.push(this.monthsShort(mom, ''));
        longPieces.push(this.months(mom, ''));
        mixedPieces.push(this.months(mom, ''));
        mixedPieces.push(this.monthsShort(mom, ''));
    }
    // Sorting makes sure if one month (or abbr) is a prefix of another it
    // will match the longer piece.
    shortPieces.sort(cmpLenRev);
    longPieces.sort(cmpLenRev);
    mixedPieces.sort(cmpLenRev);
    for (i = 0; i < 12; i++) {
        shortPieces[i] = regexEscape(shortPieces[i]);
        longPieces[i] = regexEscape(longPieces[i]);
    }
    for (i = 0; i < 24; i++) {
        mixedPieces[i] = regexEscape(mixedPieces[i]);
    }

    this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
    this._monthsShortRegex = this._monthsRegex;
    this._monthsStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
    this._monthsShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
}

function createDate (y, m, d, h, M, s, ms) {
    // can't just apply() to create a date:
    // https://stackoverflow.com/q/181348
    var date = new Date(y, m, d, h, M, s, ms);

    // the date constructor remaps years 0-99 to 1900-1999
    if (y < 100 && y >= 0 && isFinite(date.getFullYear())) {
        date.setFullYear(y);
    }
    return date;
}

function createUTCDate (y) {
    var date = new Date(Date.UTC.apply(null, arguments));

    // the Date.UTC function remaps years 0-99 to 1900-1999
    if (y < 100 && y >= 0 && isFinite(date.getUTCFullYear())) {
        date.setUTCFullYear(y);
    }
    return date;
}

// start-of-first-week - start-of-year
function firstWeekOffset(year, dow, doy) {
    var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
        fwd = 7 + dow - doy,
        // first-week day local weekday -- which local weekday is fwd
        fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;

    return -fwdlw + fwd - 1;
}

// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
    var localWeekday = (7 + weekday - dow) % 7,
        weekOffset = firstWeekOffset(year, dow, doy),
        dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
        resYear, resDayOfYear;

    if (dayOfYear <= 0) {
        resYear = year - 1;
        resDayOfYear = daysInYear(resYear) + dayOfYear;
    } else if (dayOfYear > daysInYear(year)) {
        resYear = year + 1;
        resDayOfYear = dayOfYear - daysInYear(year);
    } else {
        resYear = year;
        resDayOfYear = dayOfYear;
    }

    return {
        year: resYear,
        dayOfYear: resDayOfYear
    };
}

function weekOfYear(mom, dow, doy) {
    var weekOffset = firstWeekOffset(mom.year(), dow, doy),
        week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
        resWeek, resYear;

    if (week < 1) {
        resYear = mom.year() - 1;
        resWeek = week + weeksInYear(resYear, dow, doy);
    } else if (week > weeksInYear(mom.year(), dow, doy)) {
        resWeek = week - weeksInYear(mom.year(), dow, doy);
        resYear = mom.year() + 1;
    } else {
        resYear = mom.year();
        resWeek = week;
    }

    return {
        week: resWeek,
        year: resYear
    };
}

function weeksInYear(year, dow, doy) {
    var weekOffset = firstWeekOffset(year, dow, doy),
        weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
    return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
}

// FORMATTING

addFormatToken('w', ['ww', 2], 'wo', 'week');
addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');

// ALIASES

addUnitAlias('week', 'w');
addUnitAlias('isoWeek', 'W');

// PRIORITIES

addUnitPriority('week', 5);
addUnitPriority('isoWeek', 5);

// PARSING

addRegexToken('w',  match1to2);
addRegexToken('ww', match1to2, match2);
addRegexToken('W',  match1to2);
addRegexToken('WW', match1to2, match2);

addWeekParseToken(['w', 'ww', 'W', 'WW'], function (input, week, config, token) {
    week[token.substr(0, 1)] = toInt(input);
});

// HELPERS

// LOCALES

function localeWeek (mom) {
    return weekOfYear(mom, this._week.dow, this._week.doy).week;
}

var defaultLocaleWeek = {
    dow : 0, // Sunday is the first day of the week.
    doy : 6  // The week that contains Jan 1st is the first week of the year.
};

function localeFirstDayOfWeek () {
    return this._week.dow;
}

function localeFirstDayOfYear () {
    return this._week.doy;
}

// MOMENTS

function getSetWeek (input) {
    var week = this.localeData().week(this);
    return input == null ? week : this.add((input - week) * 7, 'd');
}

function getSetISOWeek (input) {
    var week = weekOfYear(this, 1, 4).week;
    return input == null ? week : this.add((input - week) * 7, 'd');
}

// FORMATTING

addFormatToken('d', 0, 'do', 'day');

addFormatToken('dd', 0, 0, function (format) {
    return this.localeData().weekdaysMin(this, format);
});

addFormatToken('ddd', 0, 0, function (format) {
    return this.localeData().weekdaysShort(this, format);
});

addFormatToken('dddd', 0, 0, function (format) {
    return this.localeData().weekdays(this, format);
});

addFormatToken('e', 0, 0, 'weekday');
addFormatToken('E', 0, 0, 'isoWeekday');

// ALIASES

addUnitAlias('day', 'd');
addUnitAlias('weekday', 'e');
addUnitAlias('isoWeekday', 'E');

// PRIORITY
addUnitPriority('day', 11);
addUnitPriority('weekday', 11);
addUnitPriority('isoWeekday', 11);

// PARSING

addRegexToken('d',    match1to2);
addRegexToken('e',    match1to2);
addRegexToken('E',    match1to2);
addRegexToken('dd',   function (isStrict, locale) {
    return locale.weekdaysMinRegex(isStrict);
});
addRegexToken('ddd',   function (isStrict, locale) {
    return locale.weekdaysShortRegex(isStrict);
});
addRegexToken('dddd',   function (isStrict, locale) {
    return locale.weekdaysRegex(isStrict);
});

addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
    var weekday = config._locale.weekdaysParse(input, token, config._strict);
    // if we didn't get a weekday name, mark the date as invalid
    if (weekday != null) {
        week.d = weekday;
    } else {
        getParsingFlags(config).invalidWeekday = input;
    }
});

addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
    week[token] = toInt(input);
});

// HELPERS

function parseWeekday(input, locale) {
    if (typeof input !== 'string') {
        return input;
    }

    if (!isNaN(input)) {
        return parseInt(input, 10);
    }

    input = locale.weekdaysParse(input);
    if (typeof input === 'number') {
        return input;
    }

    return null;
}

function parseIsoWeekday(input, locale) {
    if (typeof input === 'string') {
        return locale.weekdaysParse(input) % 7 || 7;
    }
    return isNaN(input) ? null : input;
}

// LOCALES

var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_');
function localeWeekdays (m, format) {
    if (!m) {
        return isArray(this._weekdays) ? this._weekdays :
            this._weekdays['standalone'];
    }
    return isArray(this._weekdays) ? this._weekdays[m.day()] :
        this._weekdays[this._weekdays.isFormat.test(format) ? 'format' : 'standalone'][m.day()];
}

var defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_');
function localeWeekdaysShort (m) {
    return (m) ? this._weekdaysShort[m.day()] : this._weekdaysShort;
}

var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_');
function localeWeekdaysMin (m) {
    return (m) ? this._weekdaysMin[m.day()] : this._weekdaysMin;
}

function handleStrictParse$1(weekdayName, format, strict) {
    var i, ii, mom, llc = weekdayName.toLocaleLowerCase();
    if (!this._weekdaysParse) {
        this._weekdaysParse = [];
        this._shortWeekdaysParse = [];
        this._minWeekdaysParse = [];

        for (i = 0; i < 7; ++i) {
            mom = createUTC([2000, 1]).day(i);
            this._minWeekdaysParse[i] = this.weekdaysMin(mom, '').toLocaleLowerCase();
            this._shortWeekdaysParse[i] = this.weekdaysShort(mom, '').toLocaleLowerCase();
            this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
        }
    }

    if (strict) {
        if (format === 'dddd') {
            ii = indexOf.call(this._weekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else if (format === 'ddd') {
            ii = indexOf.call(this._shortWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf.call(this._minWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        }
    } else {
        if (format === 'dddd') {
            ii = indexOf.call(this._weekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._shortWeekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._minWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else if (format === 'ddd') {
            ii = indexOf.call(this._shortWeekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._weekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._minWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf.call(this._minWeekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._weekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf.call(this._shortWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        }
    }
}

function localeWeekdaysParse (weekdayName, format, strict) {
    var i, mom, regex;

    if (this._weekdaysParseExact) {
        return handleStrictParse$1.call(this, weekdayName, format, strict);
    }

    if (!this._weekdaysParse) {
        this._weekdaysParse = [];
        this._minWeekdaysParse = [];
        this._shortWeekdaysParse = [];
        this._fullWeekdaysParse = [];
    }

    for (i = 0; i < 7; i++) {
        // make the regex if we don't have it already

        mom = createUTC([2000, 1]).day(i);
        if (strict && !this._fullWeekdaysParse[i]) {
            this._fullWeekdaysParse[i] = new RegExp('^' + this.weekdays(mom, '').replace('.', '\.?') + '$', 'i');
            this._shortWeekdaysParse[i] = new RegExp('^' + this.weekdaysShort(mom, '').replace('.', '\.?') + '$', 'i');
            this._minWeekdaysParse[i] = new RegExp('^' + this.weekdaysMin(mom, '').replace('.', '\.?') + '$', 'i');
        }
        if (!this._weekdaysParse[i]) {
            regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
            this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
        }
        // test the regex
        if (strict && format === 'dddd' && this._fullWeekdaysParse[i].test(weekdayName)) {
            return i;
        } else if (strict && format === 'ddd' && this._shortWeekdaysParse[i].test(weekdayName)) {
            return i;
        } else if (strict && format === 'dd' && this._minWeekdaysParse[i].test(weekdayName)) {
            return i;
        } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
            return i;
        }
    }
}

// MOMENTS

function getSetDayOfWeek (input) {
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }
    var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
    if (input != null) {
        input = parseWeekday(input, this.localeData());
        return this.add(input - day, 'd');
    } else {
        return day;
    }
}

function getSetLocaleDayOfWeek (input) {
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }
    var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
    return input == null ? weekday : this.add(input - weekday, 'd');
}

function getSetISODayOfWeek (input) {
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }

    // behaves the same as moment#day except
    // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
    // as a setter, sunday should belong to the previous week.

    if (input != null) {
        var weekday = parseIsoWeekday(input, this.localeData());
        return this.day(this.day() % 7 ? weekday : weekday - 7);
    } else {
        return this.day() || 7;
    }
}

var defaultWeekdaysRegex = matchWord;
function weekdaysRegex (isStrict) {
    if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            computeWeekdaysParse.call(this);
        }
        if (isStrict) {
            return this._weekdaysStrictRegex;
        } else {
            return this._weekdaysRegex;
        }
    } else {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            this._weekdaysRegex = defaultWeekdaysRegex;
        }
        return this._weekdaysStrictRegex && isStrict ?
            this._weekdaysStrictRegex : this._weekdaysRegex;
    }
}

var defaultWeekdaysShortRegex = matchWord;
function weekdaysShortRegex (isStrict) {
    if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            computeWeekdaysParse.call(this);
        }
        if (isStrict) {
            return this._weekdaysShortStrictRegex;
        } else {
            return this._weekdaysShortRegex;
        }
    } else {
        if (!hasOwnProp(this, '_weekdaysShortRegex')) {
            this._weekdaysShortRegex = defaultWeekdaysShortRegex;
        }
        return this._weekdaysShortStrictRegex && isStrict ?
            this._weekdaysShortStrictRegex : this._weekdaysShortRegex;
    }
}

var defaultWeekdaysMinRegex = matchWord;
function weekdaysMinRegex (isStrict) {
    if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            computeWeekdaysParse.call(this);
        }
        if (isStrict) {
            return this._weekdaysMinStrictRegex;
        } else {
            return this._weekdaysMinRegex;
        }
    } else {
        if (!hasOwnProp(this, '_weekdaysMinRegex')) {
            this._weekdaysMinRegex = defaultWeekdaysMinRegex;
        }
        return this._weekdaysMinStrictRegex && isStrict ?
            this._weekdaysMinStrictRegex : this._weekdaysMinRegex;
    }
}


function computeWeekdaysParse () {
    function cmpLenRev(a, b) {
        return b.length - a.length;
    }

    var minPieces = [], shortPieces = [], longPieces = [], mixedPieces = [],
        i, mom, minp, shortp, longp;
    for (i = 0; i < 7; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, 1]).day(i);
        minp = this.weekdaysMin(mom, '');
        shortp = this.weekdaysShort(mom, '');
        longp = this.weekdays(mom, '');
        minPieces.push(minp);
        shortPieces.push(shortp);
        longPieces.push(longp);
        mixedPieces.push(minp);
        mixedPieces.push(shortp);
        mixedPieces.push(longp);
    }
    // Sorting makes sure if one weekday (or abbr) is a prefix of another it
    // will match the longer piece.
    minPieces.sort(cmpLenRev);
    shortPieces.sort(cmpLenRev);
    longPieces.sort(cmpLenRev);
    mixedPieces.sort(cmpLenRev);
    for (i = 0; i < 7; i++) {
        shortPieces[i] = regexEscape(shortPieces[i]);
        longPieces[i] = regexEscape(longPieces[i]);
        mixedPieces[i] = regexEscape(mixedPieces[i]);
    }

    this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
    this._weekdaysShortRegex = this._weekdaysRegex;
    this._weekdaysMinRegex = this._weekdaysRegex;

    this._weekdaysStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
    this._weekdaysShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
    this._weekdaysMinStrictRegex = new RegExp('^(' + minPieces.join('|') + ')', 'i');
}

// FORMATTING

function hFormat() {
    return this.hours() % 12 || 12;
}

function kFormat() {
    return this.hours() || 24;
}

addFormatToken('H', ['HH', 2], 0, 'hour');
addFormatToken('h', ['hh', 2], 0, hFormat);
addFormatToken('k', ['kk', 2], 0, kFormat);

addFormatToken('hmm', 0, 0, function () {
    return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
});

addFormatToken('hmmss', 0, 0, function () {
    return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2) +
        zeroFill(this.seconds(), 2);
});

addFormatToken('Hmm', 0, 0, function () {
    return '' + this.hours() + zeroFill(this.minutes(), 2);
});

addFormatToken('Hmmss', 0, 0, function () {
    return '' + this.hours() + zeroFill(this.minutes(), 2) +
        zeroFill(this.seconds(), 2);
});

function meridiem (token, lowercase) {
    addFormatToken(token, 0, 0, function () {
        return this.localeData().meridiem(this.hours(), this.minutes(), lowercase);
    });
}

meridiem('a', true);
meridiem('A', false);

// ALIASES

addUnitAlias('hour', 'h');

// PRIORITY
addUnitPriority('hour', 13);

// PARSING

function matchMeridiem (isStrict, locale) {
    return locale._meridiemParse;
}

addRegexToken('a',  matchMeridiem);
addRegexToken('A',  matchMeridiem);
addRegexToken('H',  match1to2);
addRegexToken('h',  match1to2);
addRegexToken('k',  match1to2);
addRegexToken('HH', match1to2, match2);
addRegexToken('hh', match1to2, match2);
addRegexToken('kk', match1to2, match2);

addRegexToken('hmm', match3to4);
addRegexToken('hmmss', match5to6);
addRegexToken('Hmm', match3to4);
addRegexToken('Hmmss', match5to6);

addParseToken(['H', 'HH'], HOUR);
addParseToken(['k', 'kk'], function (input, array, config) {
    var kInput = toInt(input);
    array[HOUR] = kInput === 24 ? 0 : kInput;
});
addParseToken(['a', 'A'], function (input, array, config) {
    config._isPm = config._locale.isPM(input);
    config._meridiem = input;
});
addParseToken(['h', 'hh'], function (input, array, config) {
    array[HOUR] = toInt(input);
    getParsingFlags(config).bigHour = true;
});
addParseToken('hmm', function (input, array, config) {
    var pos = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos));
    array[MINUTE] = toInt(input.substr(pos));
    getParsingFlags(config).bigHour = true;
});
addParseToken('hmmss', function (input, array, config) {
    var pos1 = input.length - 4;
    var pos2 = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos1));
    array[MINUTE] = toInt(input.substr(pos1, 2));
    array[SECOND] = toInt(input.substr(pos2));
    getParsingFlags(config).bigHour = true;
});
addParseToken('Hmm', function (input, array, config) {
    var pos = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos));
    array[MINUTE] = toInt(input.substr(pos));
});
addParseToken('Hmmss', function (input, array, config) {
    var pos1 = input.length - 4;
    var pos2 = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos1));
    array[MINUTE] = toInt(input.substr(pos1, 2));
    array[SECOND] = toInt(input.substr(pos2));
});

// LOCALES

function localeIsPM (input) {
    // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
    // Using charAt should be more compatible.
    return ((input + '').toLowerCase().charAt(0) === 'p');
}

var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i;
function localeMeridiem (hours, minutes, isLower) {
    if (hours > 11) {
        return isLower ? 'pm' : 'PM';
    } else {
        return isLower ? 'am' : 'AM';
    }
}


// MOMENTS

// Setting the hour should keep the time, because the user explicitly
// specified which hour he wants. So trying to maintain the same hour (in
// a new timezone) makes sense. Adding/subtracting hours does not follow
// this rule.
var getSetHour = makeGetSet('Hours', true);

// months
// week
// weekdays
// meridiem
var baseConfig = {
    calendar: defaultCalendar,
    longDateFormat: defaultLongDateFormat,
    invalidDate: defaultInvalidDate,
    ordinal: defaultOrdinal,
    dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
    relativeTime: defaultRelativeTime,

    months: defaultLocaleMonths,
    monthsShort: defaultLocaleMonthsShort,

    week: defaultLocaleWeek,

    weekdays: defaultLocaleWeekdays,
    weekdaysMin: defaultLocaleWeekdaysMin,
    weekdaysShort: defaultLocaleWeekdaysShort,

    meridiemParse: defaultLocaleMeridiemParse
};

// internal storage for locale config files
var locales = {};
var localeFamilies = {};
var globalLocale;

function normalizeLocale(key) {
    return key ? key.toLowerCase().replace('_', '-') : key;
}

// pick the locale from the array
// try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
// substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
function chooseLocale(names) {
    var i = 0, j, next, locale, split;

    while (i < names.length) {
        split = normalizeLocale(names[i]).split('-');
        j = split.length;
        next = normalizeLocale(names[i + 1]);
        next = next ? next.split('-') : null;
        while (j > 0) {
            locale = loadLocale(split.slice(0, j).join('-'));
            if (locale) {
                return locale;
            }
            if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
                //the next array item is better than a shallower substring of this one
                break;
            }
            j--;
        }
        i++;
    }
    return null;
}

function loadLocale(name) {
    var oldLocale = null;
    // TODO: Find a better way to register and load all the locales in Node
    if (!locales[name] && (typeof module !== 'undefined') &&
            module && module.exports) {
        try {
            oldLocale = globalLocale._abbr;
            var aliasedRequire = require;
            !(function webpackMissingModule() { var e = new Error("Cannot find module \"./locale\""); e.code = 'MODULE_NOT_FOUND'; throw e; }());
            getSetGlobalLocale(oldLocale);
        } catch (e) {}
    }
    return locales[name];
}

// This function will load locale and then set the global locale.  If
// no arguments are passed in, it will simply return the current global
// locale key.
function getSetGlobalLocale (key, values) {
    var data;
    if (key) {
        if (isUndefined(values)) {
            data = getLocale(key);
        }
        else {
            data = defineLocale(key, values);
        }

        if (data) {
            // moment.duration._locale = moment._locale = data;
            globalLocale = data;
        }
    }

    return globalLocale._abbr;
}

function defineLocale (name, config) {
    if (config !== null) {
        var parentConfig = baseConfig;
        config.abbr = name;
        if (locales[name] != null) {
            deprecateSimple('defineLocaleOverride',
                    'use moment.updateLocale(localeName, config) to change ' +
                    'an existing locale. moment.defineLocale(localeName, ' +
                    'config) should only be used for creating a new locale ' +
                    'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.');
            parentConfig = locales[name]._config;
        } else if (config.parentLocale != null) {
            if (locales[config.parentLocale] != null) {
                parentConfig = locales[config.parentLocale]._config;
            } else {
                if (!localeFamilies[config.parentLocale]) {
                    localeFamilies[config.parentLocale] = [];
                }
                localeFamilies[config.parentLocale].push({
                    name: name,
                    config: config
                });
                return null;
            }
        }
        locales[name] = new Locale(mergeConfigs(parentConfig, config));

        if (localeFamilies[name]) {
            localeFamilies[name].forEach(function (x) {
                defineLocale(x.name, x.config);
            });
        }

        // backwards compat for now: also set the locale
        // make sure we set the locale AFTER all child locales have been
        // created, so we won't end up with the child locale set.
        getSetGlobalLocale(name);


        return locales[name];
    } else {
        // useful for testing
        delete locales[name];
        return null;
    }
}

function updateLocale(name, config) {
    if (config != null) {
        var locale, parentConfig = baseConfig;
        // MERGE
        if (locales[name] != null) {
            parentConfig = locales[name]._config;
        }
        config = mergeConfigs(parentConfig, config);
        locale = new Locale(config);
        locale.parentLocale = locales[name];
        locales[name] = locale;

        // backwards compat for now: also set the locale
        getSetGlobalLocale(name);
    } else {
        // pass null for config to unupdate, useful for tests
        if (locales[name] != null) {
            if (locales[name].parentLocale != null) {
                locales[name] = locales[name].parentLocale;
            } else if (locales[name] != null) {
                delete locales[name];
            }
        }
    }
    return locales[name];
}

// returns locale data
function getLocale (key) {
    var locale;

    if (key && key._locale && key._locale._abbr) {
        key = key._locale._abbr;
    }

    if (!key) {
        return globalLocale;
    }

    if (!isArray(key)) {
        //short-circuit everything else
        locale = loadLocale(key);
        if (locale) {
            return locale;
        }
        key = [key];
    }

    return chooseLocale(key);
}

function listLocales() {
    return keys(locales);
}

function checkOverflow (m) {
    var overflow;
    var a = m._a;

    if (a && getParsingFlags(m).overflow === -2) {
        overflow =
            a[MONTH]       < 0 || a[MONTH]       > 11  ? MONTH :
            a[DATE]        < 1 || a[DATE]        > daysInMonth(a[YEAR], a[MONTH]) ? DATE :
            a[HOUR]        < 0 || a[HOUR]        > 24 || (a[HOUR] === 24 && (a[MINUTE] !== 0 || a[SECOND] !== 0 || a[MILLISECOND] !== 0)) ? HOUR :
            a[MINUTE]      < 0 || a[MINUTE]      > 59  ? MINUTE :
            a[SECOND]      < 0 || a[SECOND]      > 59  ? SECOND :
            a[MILLISECOND] < 0 || a[MILLISECOND] > 999 ? MILLISECOND :
            -1;

        if (getParsingFlags(m)._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
            overflow = DATE;
        }
        if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
            overflow = WEEK;
        }
        if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
            overflow = WEEKDAY;
        }

        getParsingFlags(m).overflow = overflow;
    }

    return m;
}

// Pick the first defined of two or three arguments.
function defaults(a, b, c) {
    if (a != null) {
        return a;
    }
    if (b != null) {
        return b;
    }
    return c;
}

function currentDateArray(config) {
    // hooks is actually the exported moment object
    var nowValue = new Date(hooks.now());
    if (config._useUTC) {
        return [nowValue.getUTCFullYear(), nowValue.getUTCMonth(), nowValue.getUTCDate()];
    }
    return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
}

// convert an array to a date.
// the array should mirror the parameters below
// note: all values past the year are optional and will default to the lowest possible value.
// [year, month, day , hour, minute, second, millisecond]
function configFromArray (config) {
    var i, date, input = [], currentDate, yearToUse;

    if (config._d) {
        return;
    }

    currentDate = currentDateArray(config);

    //compute day of the year from weeks and weekdays
    if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
        dayOfYearFromWeekInfo(config);
    }

    //if the day of the year is set, figure out what it is
    if (config._dayOfYear != null) {
        yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);

        if (config._dayOfYear > daysInYear(yearToUse) || config._dayOfYear === 0) {
            getParsingFlags(config)._overflowDayOfYear = true;
        }

        date = createUTCDate(yearToUse, 0, config._dayOfYear);
        config._a[MONTH] = date.getUTCMonth();
        config._a[DATE] = date.getUTCDate();
    }

    // Default to current date.
    // * if no year, month, day of month are given, default to today
    // * if day of month is given, default month and year
    // * if month is given, default only year
    // * if year is given, don't default anything
    for (i = 0; i < 3 && config._a[i] == null; ++i) {
        config._a[i] = input[i] = currentDate[i];
    }

    // Zero out whatever was not defaulted, including time
    for (; i < 7; i++) {
        config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
    }

    // Check for 24:00:00.000
    if (config._a[HOUR] === 24 &&
            config._a[MINUTE] === 0 &&
            config._a[SECOND] === 0 &&
            config._a[MILLISECOND] === 0) {
        config._nextDay = true;
        config._a[HOUR] = 0;
    }

    config._d = (config._useUTC ? createUTCDate : createDate).apply(null, input);
    // Apply timezone offset from input. The actual utcOffset can be changed
    // with parseZone.
    if (config._tzm != null) {
        config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
    }

    if (config._nextDay) {
        config._a[HOUR] = 24;
    }

    // check for mismatching day of week
    if (config._w && typeof config._w.d !== 'undefined' && config._w.d !== config._d.getDay()) {
        getParsingFlags(config).weekdayMismatch = true;
    }
}

function dayOfYearFromWeekInfo(config) {
    var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow;

    w = config._w;
    if (w.GG != null || w.W != null || w.E != null) {
        dow = 1;
        doy = 4;

        // TODO: We need to take the current isoWeekYear, but that depends on
        // how we interpret now (local, utc, fixed offset). So create
        // a now version of current config (take local/utc/offset flags, and
        // create now).
        weekYear = defaults(w.GG, config._a[YEAR], weekOfYear(createLocal(), 1, 4).year);
        week = defaults(w.W, 1);
        weekday = defaults(w.E, 1);
        if (weekday < 1 || weekday > 7) {
            weekdayOverflow = true;
        }
    } else {
        dow = config._locale._week.dow;
        doy = config._locale._week.doy;

        var curWeek = weekOfYear(createLocal(), dow, doy);

        weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);

        // Default to current week.
        week = defaults(w.w, curWeek.week);

        if (w.d != null) {
            // weekday -- low day numbers are considered next week
            weekday = w.d;
            if (weekday < 0 || weekday > 6) {
                weekdayOverflow = true;
            }
        } else if (w.e != null) {
            // local weekday -- counting starts from begining of week
            weekday = w.e + dow;
            if (w.e < 0 || w.e > 6) {
                weekdayOverflow = true;
            }
        } else {
            // default to begining of week
            weekday = dow;
        }
    }
    if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
        getParsingFlags(config)._overflowWeeks = true;
    } else if (weekdayOverflow != null) {
        getParsingFlags(config)._overflowWeekday = true;
    } else {
        temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
        config._a[YEAR] = temp.year;
        config._dayOfYear = temp.dayOfYear;
    }
}

// iso 8601 regex
// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
var basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;

var tzRegex = /Z|[+-]\d\d(?::?\d\d)?/;

var isoDates = [
    ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
    ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
    ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
    ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
    ['YYYY-DDD', /\d{4}-\d{3}/],
    ['YYYY-MM', /\d{4}-\d\d/, false],
    ['YYYYYYMMDD', /[+-]\d{10}/],
    ['YYYYMMDD', /\d{8}/],
    // YYYYMM is NOT allowed by the standard
    ['GGGG[W]WWE', /\d{4}W\d{3}/],
    ['GGGG[W]WW', /\d{4}W\d{2}/, false],
    ['YYYYDDD', /\d{7}/]
];

// iso time formats and regexes
var isoTimes = [
    ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
    ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
    ['HH:mm:ss', /\d\d:\d\d:\d\d/],
    ['HH:mm', /\d\d:\d\d/],
    ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
    ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
    ['HHmmss', /\d\d\d\d\d\d/],
    ['HHmm', /\d\d\d\d/],
    ['HH', /\d\d/]
];

var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;

// date from iso format
function configFromISO(config) {
    var i, l,
        string = config._i,
        match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
        allowTime, dateFormat, timeFormat, tzFormat;

    if (match) {
        getParsingFlags(config).iso = true;

        for (i = 0, l = isoDates.length; i < l; i++) {
            if (isoDates[i][1].exec(match[1])) {
                dateFormat = isoDates[i][0];
                allowTime = isoDates[i][2] !== false;
                break;
            }
        }
        if (dateFormat == null) {
            config._isValid = false;
            return;
        }
        if (match[3]) {
            for (i = 0, l = isoTimes.length; i < l; i++) {
                if (isoTimes[i][1].exec(match[3])) {
                    // match[2] should be 'T' or space
                    timeFormat = (match[2] || ' ') + isoTimes[i][0];
                    break;
                }
            }
            if (timeFormat == null) {
                config._isValid = false;
                return;
            }
        }
        if (!allowTime && timeFormat != null) {
            config._isValid = false;
            return;
        }
        if (match[4]) {
            if (tzRegex.exec(match[4])) {
                tzFormat = 'Z';
            } else {
                config._isValid = false;
                return;
            }
        }
        config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
        configFromStringAndFormat(config);
    } else {
        config._isValid = false;
    }
}

// RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
var rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d{1,2})\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(\d{2,4})\s(\d\d):(\d\d)(?::(\d\d))?\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\d{4}))$/;

function extractFromRFC2822Strings(yearStr, monthStr, dayStr, hourStr, minuteStr, secondStr) {
    var result = [
        untruncateYear(yearStr),
        defaultLocaleMonthsShort.indexOf(monthStr),
        parseInt(dayStr, 10),
        parseInt(hourStr, 10),
        parseInt(minuteStr, 10)
    ];

    if (secondStr) {
        result.push(parseInt(secondStr, 10));
    }

    return result;
}

function untruncateYear(yearStr) {
    var year = parseInt(yearStr, 10);
    if (year <= 49) {
        return 2000 + year;
    } else if (year <= 999) {
        return 1900 + year;
    }
    return year;
}

function preprocessRFC2822(s) {
    // Remove comments and folding whitespace and replace multiple-spaces with a single space
    return s.replace(/\([^)]*\)|[\n\t]/g, ' ').replace(/(\s\s+)/g, ' ').trim();
}

function checkWeekday(weekdayStr, parsedInput, config) {
    if (weekdayStr) {
        // TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
        var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),
            weekdayActual = new Date(parsedInput[0], parsedInput[1], parsedInput[2]).getDay();
        if (weekdayProvided !== weekdayActual) {
            getParsingFlags(config).weekdayMismatch = true;
            config._isValid = false;
            return false;
        }
    }
    return true;
}

var obsOffsets = {
    UT: 0,
    GMT: 0,
    EDT: -4 * 60,
    EST: -5 * 60,
    CDT: -5 * 60,
    CST: -6 * 60,
    MDT: -6 * 60,
    MST: -7 * 60,
    PDT: -7 * 60,
    PST: -8 * 60
};

function calculateOffset(obsOffset, militaryOffset, numOffset) {
    if (obsOffset) {
        return obsOffsets[obsOffset];
    } else if (militaryOffset) {
        // the only allowed military tz is Z
        return 0;
    } else {
        var hm = parseInt(numOffset, 10);
        var m = hm % 100, h = (hm - m) / 100;
        return h * 60 + m;
    }
}

// date and time from ref 2822 format
function configFromRFC2822(config) {
    var match = rfc2822.exec(preprocessRFC2822(config._i));
    if (match) {
        var parsedArray = extractFromRFC2822Strings(match[4], match[3], match[2], match[5], match[6], match[7]);
        if (!checkWeekday(match[1], parsedArray, config)) {
            return;
        }

        config._a = parsedArray;
        config._tzm = calculateOffset(match[8], match[9], match[10]);

        config._d = createUTCDate.apply(null, config._a);
        config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);

        getParsingFlags(config).rfc2822 = true;
    } else {
        config._isValid = false;
    }
}

// date from iso format or fallback
function configFromString(config) {
    var matched = aspNetJsonRegex.exec(config._i);

    if (matched !== null) {
        config._d = new Date(+matched[1]);
        return;
    }

    configFromISO(config);
    if (config._isValid === false) {
        delete config._isValid;
    } else {
        return;
    }

    configFromRFC2822(config);
    if (config._isValid === false) {
        delete config._isValid;
    } else {
        return;
    }

    // Final attempt, use Input Fallback
    hooks.createFromInputFallback(config);
}

hooks.createFromInputFallback = deprecate(
    'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
    'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
    'discouraged and will be removed in an upcoming major release. Please refer to ' +
    'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
    function (config) {
        config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
    }
);

// constant that refers to the ISO standard
hooks.ISO_8601 = function () {};

// constant that refers to the RFC 2822 form
hooks.RFC_2822 = function () {};

// date from string and format string
function configFromStringAndFormat(config) {
    // TODO: Move this to another part of the creation flow to prevent circular deps
    if (config._f === hooks.ISO_8601) {
        configFromISO(config);
        return;
    }
    if (config._f === hooks.RFC_2822) {
        configFromRFC2822(config);
        return;
    }
    config._a = [];
    getParsingFlags(config).empty = true;

    // This array is used to make a Date, either with `new Date` or `Date.UTC`
    var string = '' + config._i,
        i, parsedInput, tokens, token, skipped,
        stringLength = string.length,
        totalParsedInputLength = 0;

    tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];

    for (i = 0; i < tokens.length; i++) {
        token = tokens[i];
        parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
        // console.log('token', token, 'parsedInput', parsedInput,
        //         'regex', getParseRegexForToken(token, config));
        if (parsedInput) {
            skipped = string.substr(0, string.indexOf(parsedInput));
            if (skipped.length > 0) {
                getParsingFlags(config).unusedInput.push(skipped);
            }
            string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
            totalParsedInputLength += parsedInput.length;
        }
        // don't parse if it's not a known token
        if (formatTokenFunctions[token]) {
            if (parsedInput) {
                getParsingFlags(config).empty = false;
            }
            else {
                getParsingFlags(config).unusedTokens.push(token);
            }
            addTimeToArrayFromToken(token, parsedInput, config);
        }
        else if (config._strict && !parsedInput) {
            getParsingFlags(config).unusedTokens.push(token);
        }
    }

    // add remaining unparsed input length to the string
    getParsingFlags(config).charsLeftOver = stringLength - totalParsedInputLength;
    if (string.length > 0) {
        getParsingFlags(config).unusedInput.push(string);
    }

    // clear _12h flag if hour is <= 12
    if (config._a[HOUR] <= 12 &&
        getParsingFlags(config).bigHour === true &&
        config._a[HOUR] > 0) {
        getParsingFlags(config).bigHour = undefined;
    }

    getParsingFlags(config).parsedDateParts = config._a.slice(0);
    getParsingFlags(config).meridiem = config._meridiem;
    // handle meridiem
    config._a[HOUR] = meridiemFixWrap(config._locale, config._a[HOUR], config._meridiem);

    configFromArray(config);
    checkOverflow(config);
}


function meridiemFixWrap (locale, hour, meridiem) {
    var isPm;

    if (meridiem == null) {
        // nothing to do
        return hour;
    }
    if (locale.meridiemHour != null) {
        return locale.meridiemHour(hour, meridiem);
    } else if (locale.isPM != null) {
        // Fallback
        isPm = locale.isPM(meridiem);
        if (isPm && hour < 12) {
            hour += 12;
        }
        if (!isPm && hour === 12) {
            hour = 0;
        }
        return hour;
    } else {
        // this is not supposed to happen
        return hour;
    }
}

// date from string and array of format strings
function configFromStringAndArray(config) {
    var tempConfig,
        bestMoment,

        scoreToBeat,
        i,
        currentScore;

    if (config._f.length === 0) {
        getParsingFlags(config).invalidFormat = true;
        config._d = new Date(NaN);
        return;
    }

    for (i = 0; i < config._f.length; i++) {
        currentScore = 0;
        tempConfig = copyConfig({}, config);
        if (config._useUTC != null) {
            tempConfig._useUTC = config._useUTC;
        }
        tempConfig._f = config._f[i];
        configFromStringAndFormat(tempConfig);

        if (!isValid(tempConfig)) {
            continue;
        }

        // if there is any input that was not parsed add a penalty for that format
        currentScore += getParsingFlags(tempConfig).charsLeftOver;

        //or tokens
        currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;

        getParsingFlags(tempConfig).score = currentScore;

        if (scoreToBeat == null || currentScore < scoreToBeat) {
            scoreToBeat = currentScore;
            bestMoment = tempConfig;
        }
    }

    extend(config, bestMoment || tempConfig);
}

function configFromObject(config) {
    if (config._d) {
        return;
    }

    var i = normalizeObjectUnits(config._i);
    config._a = map([i.year, i.month, i.day || i.date, i.hour, i.minute, i.second, i.millisecond], function (obj) {
        return obj && parseInt(obj, 10);
    });

    configFromArray(config);
}

function createFromConfig (config) {
    var res = new Moment(checkOverflow(prepareConfig(config)));
    if (res._nextDay) {
        // Adding is smart enough around DST
        res.add(1, 'd');
        res._nextDay = undefined;
    }

    return res;
}

function prepareConfig (config) {
    var input = config._i,
        format = config._f;

    config._locale = config._locale || getLocale(config._l);

    if (input === null || (format === undefined && input === '')) {
        return createInvalid({nullInput: true});
    }

    if (typeof input === 'string') {
        config._i = input = config._locale.preparse(input);
    }

    if (isMoment(input)) {
        return new Moment(checkOverflow(input));
    } else if (isDate(input)) {
        config._d = input;
    } else if (isArray(format)) {
        configFromStringAndArray(config);
    } else if (format) {
        configFromStringAndFormat(config);
    }  else {
        configFromInput(config);
    }

    if (!isValid(config)) {
        config._d = null;
    }

    return config;
}

function configFromInput(config) {
    var input = config._i;
    if (isUndefined(input)) {
        config._d = new Date(hooks.now());
    } else if (isDate(input)) {
        config._d = new Date(input.valueOf());
    } else if (typeof input === 'string') {
        configFromString(config);
    } else if (isArray(input)) {
        config._a = map(input.slice(0), function (obj) {
            return parseInt(obj, 10);
        });
        configFromArray(config);
    } else if (isObject(input)) {
        configFromObject(config);
    } else if (isNumber(input)) {
        // from milliseconds
        config._d = new Date(input);
    } else {
        hooks.createFromInputFallback(config);
    }
}

function createLocalOrUTC (input, format, locale, strict, isUTC) {
    var c = {};

    if (locale === true || locale === false) {
        strict = locale;
        locale = undefined;
    }

    if ((isObject(input) && isObjectEmpty(input)) ||
            (isArray(input) && input.length === 0)) {
        input = undefined;
    }
    // object construction must be done this way.
    // https://github.com/moment/moment/issues/1423
    c._isAMomentObject = true;
    c._useUTC = c._isUTC = isUTC;
    c._l = locale;
    c._i = input;
    c._f = format;
    c._strict = strict;

    return createFromConfig(c);
}

function createLocal (input, format, locale, strict) {
    return createLocalOrUTC(input, format, locale, strict, false);
}

var prototypeMin = deprecate(
    'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
    function () {
        var other = createLocal.apply(null, arguments);
        if (this.isValid() && other.isValid()) {
            return other < this ? this : other;
        } else {
            return createInvalid();
        }
    }
);

var prototypeMax = deprecate(
    'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
    function () {
        var other = createLocal.apply(null, arguments);
        if (this.isValid() && other.isValid()) {
            return other > this ? this : other;
        } else {
            return createInvalid();
        }
    }
);

// Pick a moment m from moments so that m[fn](other) is true for all
// other. This relies on the function fn to be transitive.
//
// moments should either be an array of moment objects or an array, whose
// first element is an array of moment objects.
function pickBy(fn, moments) {
    var res, i;
    if (moments.length === 1 && isArray(moments[0])) {
        moments = moments[0];
    }
    if (!moments.length) {
        return createLocal();
    }
    res = moments[0];
    for (i = 1; i < moments.length; ++i) {
        if (!moments[i].isValid() || moments[i][fn](res)) {
            res = moments[i];
        }
    }
    return res;
}

// TODO: Use [].sort instead?
function min () {
    var args = [].slice.call(arguments, 0);

    return pickBy('isBefore', args);
}

function max () {
    var args = [].slice.call(arguments, 0);

    return pickBy('isAfter', args);
}

var now = function () {
    return Date.now ? Date.now() : +(new Date());
};

var ordering = ['year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond'];

function isDurationValid(m) {
    for (var key in m) {
        if (!(indexOf.call(ordering, key) !== -1 && (m[key] == null || !isNaN(m[key])))) {
            return false;
        }
    }

    var unitHasDecimal = false;
    for (var i = 0; i < ordering.length; ++i) {
        if (m[ordering[i]]) {
            if (unitHasDecimal) {
                return false; // only allow non-integers for smallest unit
            }
            if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
                unitHasDecimal = true;
            }
        }
    }

    return true;
}

function isValid$1() {
    return this._isValid;
}

function createInvalid$1() {
    return createDuration(NaN);
}

function Duration (duration) {
    var normalizedInput = normalizeObjectUnits(duration),
        years = normalizedInput.year || 0,
        quarters = normalizedInput.quarter || 0,
        months = normalizedInput.month || 0,
        weeks = normalizedInput.week || 0,
        days = normalizedInput.day || 0,
        hours = normalizedInput.hour || 0,
        minutes = normalizedInput.minute || 0,
        seconds = normalizedInput.second || 0,
        milliseconds = normalizedInput.millisecond || 0;

    this._isValid = isDurationValid(normalizedInput);

    // representation for dateAddRemove
    this._milliseconds = +milliseconds +
        seconds * 1e3 + // 1000
        minutes * 6e4 + // 1000 * 60
        hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
    // Because of dateAddRemove treats 24 hours as different from a
    // day when working around DST, we need to store them separately
    this._days = +days +
        weeks * 7;
    // It is impossible to translate months into days without knowing
    // which months you are are talking about, so we have to store
    // it separately.
    this._months = +months +
        quarters * 3 +
        years * 12;

    this._data = {};

    this._locale = getLocale();

    this._bubble();
}

function isDuration (obj) {
    return obj instanceof Duration;
}

function absRound (number) {
    if (number < 0) {
        return Math.round(-1 * number) * -1;
    } else {
        return Math.round(number);
    }
}

// FORMATTING

function offset (token, separator) {
    addFormatToken(token, 0, 0, function () {
        var offset = this.utcOffset();
        var sign = '+';
        if (offset < 0) {
            offset = -offset;
            sign = '-';
        }
        return sign + zeroFill(~~(offset / 60), 2) + separator + zeroFill(~~(offset) % 60, 2);
    });
}

offset('Z', ':');
offset('ZZ', '');

// PARSING

addRegexToken('Z',  matchShortOffset);
addRegexToken('ZZ', matchShortOffset);
addParseToken(['Z', 'ZZ'], function (input, array, config) {
    config._useUTC = true;
    config._tzm = offsetFromString(matchShortOffset, input);
});

// HELPERS

// timezone chunker
// '+10:00' > ['10',  '00']
// '-1530'  > ['-15', '30']
var chunkOffset = /([\+\-]|\d\d)/gi;

function offsetFromString(matcher, string) {
    var matches = (string || '').match(matcher);

    if (matches === null) {
        return null;
    }

    var chunk   = matches[matches.length - 1] || [];
    var parts   = (chunk + '').match(chunkOffset) || ['-', 0, 0];
    var minutes = +(parts[1] * 60) + toInt(parts[2]);

    return minutes === 0 ?
      0 :
      parts[0] === '+' ? minutes : -minutes;
}

// Return a moment from input, that is local/utc/zone equivalent to model.
function cloneWithOffset(input, model) {
    var res, diff;
    if (model._isUTC) {
        res = model.clone();
        diff = (isMoment(input) || isDate(input) ? input.valueOf() : createLocal(input).valueOf()) - res.valueOf();
        // Use low-level api, because this fn is low-level api.
        res._d.setTime(res._d.valueOf() + diff);
        hooks.updateOffset(res, false);
        return res;
    } else {
        return createLocal(input).local();
    }
}

function getDateOffset (m) {
    // On Firefox.24 Date#getTimezoneOffset returns a floating point.
    // https://github.com/moment/moment/pull/1871
    return -Math.round(m._d.getTimezoneOffset() / 15) * 15;
}

// HOOKS

// This function will be called whenever a moment is mutated.
// It is intended to keep the offset in sync with the timezone.
hooks.updateOffset = function () {};

// MOMENTS

// keepLocalTime = true means only change the timezone, without
// affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
// 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
// +0200, so we adjust the time as needed, to be valid.
//
// Keeping the time actually adds/subtracts (one hour)
// from the actual represented time. That is why we call updateOffset
// a second time. In case it wants us to change the offset again
// _changeInProgress == true case, then we have to adjust, because
// there is no such time in the given timezone.
function getSetOffset (input, keepLocalTime, keepMinutes) {
    var offset = this._offset || 0,
        localAdjust;
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }
    if (input != null) {
        if (typeof input === 'string') {
            input = offsetFromString(matchShortOffset, input);
            if (input === null) {
                return this;
            }
        } else if (Math.abs(input) < 16 && !keepMinutes) {
            input = input * 60;
        }
        if (!this._isUTC && keepLocalTime) {
            localAdjust = getDateOffset(this);
        }
        this._offset = input;
        this._isUTC = true;
        if (localAdjust != null) {
            this.add(localAdjust, 'm');
        }
        if (offset !== input) {
            if (!keepLocalTime || this._changeInProgress) {
                addSubtract(this, createDuration(input - offset, 'm'), 1, false);
            } else if (!this._changeInProgress) {
                this._changeInProgress = true;
                hooks.updateOffset(this, true);
                this._changeInProgress = null;
            }
        }
        return this;
    } else {
        return this._isUTC ? offset : getDateOffset(this);
    }
}

function getSetZone (input, keepLocalTime) {
    if (input != null) {
        if (typeof input !== 'string') {
            input = -input;
        }

        this.utcOffset(input, keepLocalTime);

        return this;
    } else {
        return -this.utcOffset();
    }
}

function setOffsetToUTC (keepLocalTime) {
    return this.utcOffset(0, keepLocalTime);
}

function setOffsetToLocal (keepLocalTime) {
    if (this._isUTC) {
        this.utcOffset(0, keepLocalTime);
        this._isUTC = false;

        if (keepLocalTime) {
            this.subtract(getDateOffset(this), 'm');
        }
    }
    return this;
}

function setOffsetToParsedOffset () {
    if (this._tzm != null) {
        this.utcOffset(this._tzm, false, true);
    } else if (typeof this._i === 'string') {
        var tZone = offsetFromString(matchOffset, this._i);
        if (tZone != null) {
            this.utcOffset(tZone);
        }
        else {
            this.utcOffset(0, true);
        }
    }
    return this;
}

function hasAlignedHourOffset (input) {
    if (!this.isValid()) {
        return false;
    }
    input = input ? createLocal(input).utcOffset() : 0;

    return (this.utcOffset() - input) % 60 === 0;
}

function isDaylightSavingTime () {
    return (
        this.utcOffset() > this.clone().month(0).utcOffset() ||
        this.utcOffset() > this.clone().month(5).utcOffset()
    );
}

function isDaylightSavingTimeShifted () {
    if (!isUndefined(this._isDSTShifted)) {
        return this._isDSTShifted;
    }

    var c = {};

    copyConfig(c, this);
    c = prepareConfig(c);

    if (c._a) {
        var other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
        this._isDSTShifted = this.isValid() &&
            compareArrays(c._a, other.toArray()) > 0;
    } else {
        this._isDSTShifted = false;
    }

    return this._isDSTShifted;
}

function isLocal () {
    return this.isValid() ? !this._isUTC : false;
}

function isUtcOffset () {
    return this.isValid() ? this._isUTC : false;
}

function isUtc () {
    return this.isValid() ? this._isUTC && this._offset === 0 : false;
}

// ASP.NET json date format regex
var aspNetRegex = /^(\-|\+)?(?:(\d*)[. ])?(\d+)\:(\d+)(?:\:(\d+)(\.\d*)?)?$/;

// from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
// somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
// and further modified to allow for strings containing both week and day
var isoRegex = /^(-|\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;

function createDuration (input, key) {
    var duration = input,
        // matching against regexp is expensive, do it on demand
        match = null,
        sign,
        ret,
        diffRes;

    if (isDuration(input)) {
        duration = {
            ms : input._milliseconds,
            d  : input._days,
            M  : input._months
        };
    } else if (isNumber(input)) {
        duration = {};
        if (key) {
            duration[key] = input;
        } else {
            duration.milliseconds = input;
        }
    } else if (!!(match = aspNetRegex.exec(input))) {
        sign = (match[1] === '-') ? -1 : 1;
        duration = {
            y  : 0,
            d  : toInt(match[DATE])                         * sign,
            h  : toInt(match[HOUR])                         * sign,
            m  : toInt(match[MINUTE])                       * sign,
            s  : toInt(match[SECOND])                       * sign,
            ms : toInt(absRound(match[MILLISECOND] * 1000)) * sign // the millisecond decimal point is included in the match
        };
    } else if (!!(match = isoRegex.exec(input))) {
        sign = (match[1] === '-') ? -1 : (match[1] === '+') ? 1 : 1;
        duration = {
            y : parseIso(match[2], sign),
            M : parseIso(match[3], sign),
            w : parseIso(match[4], sign),
            d : parseIso(match[5], sign),
            h : parseIso(match[6], sign),
            m : parseIso(match[7], sign),
            s : parseIso(match[8], sign)
        };
    } else if (duration == null) {// checks for null or undefined
        duration = {};
    } else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) {
        diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to));

        duration = {};
        duration.ms = diffRes.milliseconds;
        duration.M = diffRes.months;
    }

    ret = new Duration(duration);

    if (isDuration(input) && hasOwnProp(input, '_locale')) {
        ret._locale = input._locale;
    }

    return ret;
}

createDuration.fn = Duration.prototype;
createDuration.invalid = createInvalid$1;

function parseIso (inp, sign) {
    // We'd normally use ~~inp for this, but unfortunately it also
    // converts floats to ints.
    // inp may be undefined, so careful calling replace on it.
    var res = inp && parseFloat(inp.replace(',', '.'));
    // apply sign while we're at it
    return (isNaN(res) ? 0 : res) * sign;
}

function positiveMomentsDifference(base, other) {
    var res = {milliseconds: 0, months: 0};

    res.months = other.month() - base.month() +
        (other.year() - base.year()) * 12;
    if (base.clone().add(res.months, 'M').isAfter(other)) {
        --res.months;
    }

    res.milliseconds = +other - +(base.clone().add(res.months, 'M'));

    return res;
}

function momentsDifference(base, other) {
    var res;
    if (!(base.isValid() && other.isValid())) {
        return {milliseconds: 0, months: 0};
    }

    other = cloneWithOffset(other, base);
    if (base.isBefore(other)) {
        res = positiveMomentsDifference(base, other);
    } else {
        res = positiveMomentsDifference(other, base);
        res.milliseconds = -res.milliseconds;
        res.months = -res.months;
    }

    return res;
}

// TODO: remove 'name' arg after deprecation is removed
function createAdder(direction, name) {
    return function (val, period) {
        var dur, tmp;
        //invert the arguments, but complain about it
        if (period !== null && !isNaN(+period)) {
            deprecateSimple(name, 'moment().' + name  + '(period, number) is deprecated. Please use moment().' + name + '(number, period). ' +
            'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.');
            tmp = val; val = period; period = tmp;
        }

        val = typeof val === 'string' ? +val : val;
        dur = createDuration(val, period);
        addSubtract(this, dur, direction);
        return this;
    };
}

function addSubtract (mom, duration, isAdding, updateOffset) {
    var milliseconds = duration._milliseconds,
        days = absRound(duration._days),
        months = absRound(duration._months);

    if (!mom.isValid()) {
        // No op
        return;
    }

    updateOffset = updateOffset == null ? true : updateOffset;

    if (months) {
        setMonth(mom, get(mom, 'Month') + months * isAdding);
    }
    if (days) {
        set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
    }
    if (milliseconds) {
        mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
    }
    if (updateOffset) {
        hooks.updateOffset(mom, days || months);
    }
}

var add      = createAdder(1, 'add');
var subtract = createAdder(-1, 'subtract');

function getCalendarFormat(myMoment, now) {
    var diff = myMoment.diff(now, 'days', true);
    return diff < -6 ? 'sameElse' :
            diff < -1 ? 'lastWeek' :
            diff < 0 ? 'lastDay' :
            diff < 1 ? 'sameDay' :
            diff < 2 ? 'nextDay' :
            diff < 7 ? 'nextWeek' : 'sameElse';
}

function calendar$1 (time, formats) {
    // We want to compare the start of today, vs this.
    // Getting start-of-today depends on whether we're local/utc/offset or not.
    var now = time || createLocal(),
        sod = cloneWithOffset(now, this).startOf('day'),
        format = hooks.calendarFormat(this, sod) || 'sameElse';

    var output = formats && (isFunction(formats[format]) ? formats[format].call(this, now) : formats[format]);

    return this.format(output || this.localeData().calendar(format, this, createLocal(now)));
}

function clone () {
    return new Moment(this);
}

function isAfter (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input);
    if (!(this.isValid() && localInput.isValid())) {
        return false;
    }
    units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
    if (units === 'millisecond') {
        return this.valueOf() > localInput.valueOf();
    } else {
        return localInput.valueOf() < this.clone().startOf(units).valueOf();
    }
}

function isBefore (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input);
    if (!(this.isValid() && localInput.isValid())) {
        return false;
    }
    units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
    if (units === 'millisecond') {
        return this.valueOf() < localInput.valueOf();
    } else {
        return this.clone().endOf(units).valueOf() < localInput.valueOf();
    }
}

function isBetween (from, to, units, inclusivity) {
    inclusivity = inclusivity || '()';
    return (inclusivity[0] === '(' ? this.isAfter(from, units) : !this.isBefore(from, units)) &&
        (inclusivity[1] === ')' ? this.isBefore(to, units) : !this.isAfter(to, units));
}

function isSame (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input),
        inputMs;
    if (!(this.isValid() && localInput.isValid())) {
        return false;
    }
    units = normalizeUnits(units || 'millisecond');
    if (units === 'millisecond') {
        return this.valueOf() === localInput.valueOf();
    } else {
        inputMs = localInput.valueOf();
        return this.clone().startOf(units).valueOf() <= inputMs && inputMs <= this.clone().endOf(units).valueOf();
    }
}

function isSameOrAfter (input, units) {
    return this.isSame(input, units) || this.isAfter(input,units);
}

function isSameOrBefore (input, units) {
    return this.isSame(input, units) || this.isBefore(input,units);
}

function diff (input, units, asFloat) {
    var that,
        zoneDelta,
        delta, output;

    if (!this.isValid()) {
        return NaN;
    }

    that = cloneWithOffset(input, this);

    if (!that.isValid()) {
        return NaN;
    }

    zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;

    units = normalizeUnits(units);

    switch (units) {
        case 'year': output = monthDiff(this, that) / 12; break;
        case 'month': output = monthDiff(this, that); break;
        case 'quarter': output = monthDiff(this, that) / 3; break;
        case 'second': output = (this - that) / 1e3; break; // 1000
        case 'minute': output = (this - that) / 6e4; break; // 1000 * 60
        case 'hour': output = (this - that) / 36e5; break; // 1000 * 60 * 60
        case 'day': output = (this - that - zoneDelta) / 864e5; break; // 1000 * 60 * 60 * 24, negate dst
        case 'week': output = (this - that - zoneDelta) / 6048e5; break; // 1000 * 60 * 60 * 24 * 7, negate dst
        default: output = this - that;
    }

    return asFloat ? output : absFloor(output);
}

function monthDiff (a, b) {
    // difference in months
    var wholeMonthDiff = ((b.year() - a.year()) * 12) + (b.month() - a.month()),
        // b is in (anchor - 1 month, anchor + 1 month)
        anchor = a.clone().add(wholeMonthDiff, 'months'),
        anchor2, adjust;

    if (b - anchor < 0) {
        anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
        // linear across the month
        adjust = (b - anchor) / (anchor - anchor2);
    } else {
        anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
        // linear across the month
        adjust = (b - anchor) / (anchor2 - anchor);
    }

    //check for negative zero, return zero if negative zero
    return -(wholeMonthDiff + adjust) || 0;
}

hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';

function toString () {
    return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
}

function toISOString() {
    if (!this.isValid()) {
        return null;
    }
    var m = this.clone().utc();
    if (m.year() < 0 || m.year() > 9999) {
        return formatMoment(m, 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
    }
    if (isFunction(Date.prototype.toISOString)) {
        // native implementation is ~50x faster, use it when we can
        return this.toDate().toISOString();
    }
    return formatMoment(m, 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
}

/**
 * Return a human readable representation of a moment that can
 * also be evaluated to get a new moment which is the same
 *
 * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
 */
function inspect () {
    if (!this.isValid()) {
        return 'moment.invalid(/* ' + this._i + ' */)';
    }
    var func = 'moment';
    var zone = '';
    if (!this.isLocal()) {
        func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
        zone = 'Z';
    }
    var prefix = '[' + func + '("]';
    var year = (0 <= this.year() && this.year() <= 9999) ? 'YYYY' : 'YYYYYY';
    var datetime = '-MM-DD[T]HH:mm:ss.SSS';
    var suffix = zone + '[")]';

    return this.format(prefix + year + datetime + suffix);
}

function format (inputString) {
    if (!inputString) {
        inputString = this.isUtc() ? hooks.defaultFormatUtc : hooks.defaultFormat;
    }
    var output = formatMoment(this, inputString);
    return this.localeData().postformat(output);
}

function from (time, withoutSuffix) {
    if (this.isValid() &&
            ((isMoment(time) && time.isValid()) ||
             createLocal(time).isValid())) {
        return createDuration({to: this, from: time}).locale(this.locale()).humanize(!withoutSuffix);
    } else {
        return this.localeData().invalidDate();
    }
}

function fromNow (withoutSuffix) {
    return this.from(createLocal(), withoutSuffix);
}

function to (time, withoutSuffix) {
    if (this.isValid() &&
            ((isMoment(time) && time.isValid()) ||
             createLocal(time).isValid())) {
        return createDuration({from: this, to: time}).locale(this.locale()).humanize(!withoutSuffix);
    } else {
        return this.localeData().invalidDate();
    }
}

function toNow (withoutSuffix) {
    return this.to(createLocal(), withoutSuffix);
}

// If passed a locale key, it will set the locale for this
// instance.  Otherwise, it will return the locale configuration
// variables for this instance.
function locale (key) {
    var newLocaleData;

    if (key === undefined) {
        return this._locale._abbr;
    } else {
        newLocaleData = getLocale(key);
        if (newLocaleData != null) {
            this._locale = newLocaleData;
        }
        return this;
    }
}

var lang = deprecate(
    'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
    function (key) {
        if (key === undefined) {
            return this.localeData();
        } else {
            return this.locale(key);
        }
    }
);

function localeData () {
    return this._locale;
}

function startOf (units) {
    units = normalizeUnits(units);
    // the following switch intentionally omits break keywords
    // to utilize falling through the cases.
    switch (units) {
        case 'year':
            this.month(0);
            /* falls through */
        case 'quarter':
        case 'month':
            this.date(1);
            /* falls through */
        case 'week':
        case 'isoWeek':
        case 'day':
        case 'date':
            this.hours(0);
            /* falls through */
        case 'hour':
            this.minutes(0);
            /* falls through */
        case 'minute':
            this.seconds(0);
            /* falls through */
        case 'second':
            this.milliseconds(0);
    }

    // weeks are a special case
    if (units === 'week') {
        this.weekday(0);
    }
    if (units === 'isoWeek') {
        this.isoWeekday(1);
    }

    // quarters are also special
    if (units === 'quarter') {
        this.month(Math.floor(this.month() / 3) * 3);
    }

    return this;
}

function endOf (units) {
    units = normalizeUnits(units);
    if (units === undefined || units === 'millisecond') {
        return this;
    }

    // 'date' is an alias for 'day', so it should be considered as such.
    if (units === 'date') {
        units = 'day';
    }

    return this.startOf(units).add(1, (units === 'isoWeek' ? 'week' : units)).subtract(1, 'ms');
}

function valueOf () {
    return this._d.valueOf() - ((this._offset || 0) * 60000);
}

function unix () {
    return Math.floor(this.valueOf() / 1000);
}

function toDate () {
    return new Date(this.valueOf());
}

function toArray () {
    var m = this;
    return [m.year(), m.month(), m.date(), m.hour(), m.minute(), m.second(), m.millisecond()];
}

function toObject () {
    var m = this;
    return {
        years: m.year(),
        months: m.month(),
        date: m.date(),
        hours: m.hours(),
        minutes: m.minutes(),
        seconds: m.seconds(),
        milliseconds: m.milliseconds()
    };
}

function toJSON () {
    // new Date(NaN).toJSON() === null
    return this.isValid() ? this.toISOString() : null;
}

function isValid$2 () {
    return isValid(this);
}

function parsingFlags () {
    return extend({}, getParsingFlags(this));
}

function invalidAt () {
    return getParsingFlags(this).overflow;
}

function creationData() {
    return {
        input: this._i,
        format: this._f,
        locale: this._locale,
        isUTC: this._isUTC,
        strict: this._strict
    };
}

// FORMATTING

addFormatToken(0, ['gg', 2], 0, function () {
    return this.weekYear() % 100;
});

addFormatToken(0, ['GG', 2], 0, function () {
    return this.isoWeekYear() % 100;
});

function addWeekYearFormatToken (token, getter) {
    addFormatToken(0, [token, token.length], 0, getter);
}

addWeekYearFormatToken('gggg',     'weekYear');
addWeekYearFormatToken('ggggg',    'weekYear');
addWeekYearFormatToken('GGGG',  'isoWeekYear');
addWeekYearFormatToken('GGGGG', 'isoWeekYear');

// ALIASES

addUnitAlias('weekYear', 'gg');
addUnitAlias('isoWeekYear', 'GG');

// PRIORITY

addUnitPriority('weekYear', 1);
addUnitPriority('isoWeekYear', 1);


// PARSING

addRegexToken('G',      matchSigned);
addRegexToken('g',      matchSigned);
addRegexToken('GG',     match1to2, match2);
addRegexToken('gg',     match1to2, match2);
addRegexToken('GGGG',   match1to4, match4);
addRegexToken('gggg',   match1to4, match4);
addRegexToken('GGGGG',  match1to6, match6);
addRegexToken('ggggg',  match1to6, match6);

addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
    week[token.substr(0, 2)] = toInt(input);
});

addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
    week[token] = hooks.parseTwoDigitYear(input);
});

// MOMENTS

function getSetWeekYear (input) {
    return getSetWeekYearHelper.call(this,
            input,
            this.week(),
            this.weekday(),
            this.localeData()._week.dow,
            this.localeData()._week.doy);
}

function getSetISOWeekYear (input) {
    return getSetWeekYearHelper.call(this,
            input, this.isoWeek(), this.isoWeekday(), 1, 4);
}

function getISOWeeksInYear () {
    return weeksInYear(this.year(), 1, 4);
}

function getWeeksInYear () {
    var weekInfo = this.localeData()._week;
    return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
}

function getSetWeekYearHelper(input, week, weekday, dow, doy) {
    var weeksTarget;
    if (input == null) {
        return weekOfYear(this, dow, doy).year;
    } else {
        weeksTarget = weeksInYear(input, dow, doy);
        if (week > weeksTarget) {
            week = weeksTarget;
        }
        return setWeekAll.call(this, input, week, weekday, dow, doy);
    }
}

function setWeekAll(weekYear, week, weekday, dow, doy) {
    var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
        date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);

    this.year(date.getUTCFullYear());
    this.month(date.getUTCMonth());
    this.date(date.getUTCDate());
    return this;
}

// FORMATTING

addFormatToken('Q', 0, 'Qo', 'quarter');

// ALIASES

addUnitAlias('quarter', 'Q');

// PRIORITY

addUnitPriority('quarter', 7);

// PARSING

addRegexToken('Q', match1);
addParseToken('Q', function (input, array) {
    array[MONTH] = (toInt(input) - 1) * 3;
});

// MOMENTS

function getSetQuarter (input) {
    return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
}

// FORMATTING

addFormatToken('D', ['DD', 2], 'Do', 'date');

// ALIASES

addUnitAlias('date', 'D');

// PRIOROITY
addUnitPriority('date', 9);

// PARSING

addRegexToken('D',  match1to2);
addRegexToken('DD', match1to2, match2);
addRegexToken('Do', function (isStrict, locale) {
    // TODO: Remove "ordinalParse" fallback in next major release.
    return isStrict ?
      (locale._dayOfMonthOrdinalParse || locale._ordinalParse) :
      locale._dayOfMonthOrdinalParseLenient;
});

addParseToken(['D', 'DD'], DATE);
addParseToken('Do', function (input, array) {
    array[DATE] = toInt(input.match(match1to2)[0], 10);
});

// MOMENTS

var getSetDayOfMonth = makeGetSet('Date', true);

// FORMATTING

addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');

// ALIASES

addUnitAlias('dayOfYear', 'DDD');

// PRIORITY
addUnitPriority('dayOfYear', 4);

// PARSING

addRegexToken('DDD',  match1to3);
addRegexToken('DDDD', match3);
addParseToken(['DDD', 'DDDD'], function (input, array, config) {
    config._dayOfYear = toInt(input);
});

// HELPERS

// MOMENTS

function getSetDayOfYear (input) {
    var dayOfYear = Math.round((this.clone().startOf('day') - this.clone().startOf('year')) / 864e5) + 1;
    return input == null ? dayOfYear : this.add((input - dayOfYear), 'd');
}

// FORMATTING

addFormatToken('m', ['mm', 2], 0, 'minute');

// ALIASES

addUnitAlias('minute', 'm');

// PRIORITY

addUnitPriority('minute', 14);

// PARSING

addRegexToken('m',  match1to2);
addRegexToken('mm', match1to2, match2);
addParseToken(['m', 'mm'], MINUTE);

// MOMENTS

var getSetMinute = makeGetSet('Minutes', false);

// FORMATTING

addFormatToken('s', ['ss', 2], 0, 'second');

// ALIASES

addUnitAlias('second', 's');

// PRIORITY

addUnitPriority('second', 15);

// PARSING

addRegexToken('s',  match1to2);
addRegexToken('ss', match1to2, match2);
addParseToken(['s', 'ss'], SECOND);

// MOMENTS

var getSetSecond = makeGetSet('Seconds', false);

// FORMATTING

addFormatToken('S', 0, 0, function () {
    return ~~(this.millisecond() / 100);
});

addFormatToken(0, ['SS', 2], 0, function () {
    return ~~(this.millisecond() / 10);
});

addFormatToken(0, ['SSS', 3], 0, 'millisecond');
addFormatToken(0, ['SSSS', 4], 0, function () {
    return this.millisecond() * 10;
});
addFormatToken(0, ['SSSSS', 5], 0, function () {
    return this.millisecond() * 100;
});
addFormatToken(0, ['SSSSSS', 6], 0, function () {
    return this.millisecond() * 1000;
});
addFormatToken(0, ['SSSSSSS', 7], 0, function () {
    return this.millisecond() * 10000;
});
addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
    return this.millisecond() * 100000;
});
addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
    return this.millisecond() * 1000000;
});


// ALIASES

addUnitAlias('millisecond', 'ms');

// PRIORITY

addUnitPriority('millisecond', 16);

// PARSING

addRegexToken('S',    match1to3, match1);
addRegexToken('SS',   match1to3, match2);
addRegexToken('SSS',  match1to3, match3);

var token;
for (token = 'SSSS'; token.length <= 9; token += 'S') {
    addRegexToken(token, matchUnsigned);
}

function parseMs(input, array) {
    array[MILLISECOND] = toInt(('0.' + input) * 1000);
}

for (token = 'S'; token.length <= 9; token += 'S') {
    addParseToken(token, parseMs);
}
// MOMENTS

var getSetMillisecond = makeGetSet('Milliseconds', false);

// FORMATTING

addFormatToken('z',  0, 0, 'zoneAbbr');
addFormatToken('zz', 0, 0, 'zoneName');

// MOMENTS

function getZoneAbbr () {
    return this._isUTC ? 'UTC' : '';
}

function getZoneName () {
    return this._isUTC ? 'Coordinated Universal Time' : '';
}

var proto = Moment.prototype;

proto.add               = add;
proto.calendar          = calendar$1;
proto.clone             = clone;
proto.diff              = diff;
proto.endOf             = endOf;
proto.format            = format;
proto.from              = from;
proto.fromNow           = fromNow;
proto.to                = to;
proto.toNow             = toNow;
proto.get               = stringGet;
proto.invalidAt         = invalidAt;
proto.isAfter           = isAfter;
proto.isBefore          = isBefore;
proto.isBetween         = isBetween;
proto.isSame            = isSame;
proto.isSameOrAfter     = isSameOrAfter;
proto.isSameOrBefore    = isSameOrBefore;
proto.isValid           = isValid$2;
proto.lang              = lang;
proto.locale            = locale;
proto.localeData        = localeData;
proto.max               = prototypeMax;
proto.min               = prototypeMin;
proto.parsingFlags      = parsingFlags;
proto.set               = stringSet;
proto.startOf           = startOf;
proto.subtract          = subtract;
proto.toArray           = toArray;
proto.toObject          = toObject;
proto.toDate            = toDate;
proto.toISOString       = toISOString;
proto.inspect           = inspect;
proto.toJSON            = toJSON;
proto.toString          = toString;
proto.unix              = unix;
proto.valueOf           = valueOf;
proto.creationData      = creationData;

// Year
proto.year       = getSetYear;
proto.isLeapYear = getIsLeapYear;

// Week Year
proto.weekYear    = getSetWeekYear;
proto.isoWeekYear = getSetISOWeekYear;

// Quarter
proto.quarter = proto.quarters = getSetQuarter;

// Month
proto.month       = getSetMonth;
proto.daysInMonth = getDaysInMonth;

// Week
proto.week           = proto.weeks        = getSetWeek;
proto.isoWeek        = proto.isoWeeks     = getSetISOWeek;
proto.weeksInYear    = getWeeksInYear;
proto.isoWeeksInYear = getISOWeeksInYear;

// Day
proto.date       = getSetDayOfMonth;
proto.day        = proto.days             = getSetDayOfWeek;
proto.weekday    = getSetLocaleDayOfWeek;
proto.isoWeekday = getSetISODayOfWeek;
proto.dayOfYear  = getSetDayOfYear;

// Hour
proto.hour = proto.hours = getSetHour;

// Minute
proto.minute = proto.minutes = getSetMinute;

// Second
proto.second = proto.seconds = getSetSecond;

// Millisecond
proto.millisecond = proto.milliseconds = getSetMillisecond;

// Offset
proto.utcOffset            = getSetOffset;
proto.utc                  = setOffsetToUTC;
proto.local                = setOffsetToLocal;
proto.parseZone            = setOffsetToParsedOffset;
proto.hasAlignedHourOffset = hasAlignedHourOffset;
proto.isDST                = isDaylightSavingTime;
proto.isLocal              = isLocal;
proto.isUtcOffset          = isUtcOffset;
proto.isUtc                = isUtc;
proto.isUTC                = isUtc;

// Timezone
proto.zoneAbbr = getZoneAbbr;
proto.zoneName = getZoneName;

// Deprecations
proto.dates  = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth);
proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth);
proto.years  = deprecate('years accessor is deprecated. Use year instead', getSetYear);
proto.zone   = deprecate('moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/', getSetZone);
proto.isDSTShifted = deprecate('isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information', isDaylightSavingTimeShifted);

function createUnix (input) {
    return createLocal(input * 1000);
}

function createInZone () {
    return createLocal.apply(null, arguments).parseZone();
}

function preParsePostFormat (string) {
    return string;
}

var proto$1 = Locale.prototype;

proto$1.calendar        = calendar;
proto$1.longDateFormat  = longDateFormat;
proto$1.invalidDate     = invalidDate;
proto$1.ordinal         = ordinal;
proto$1.preparse        = preParsePostFormat;
proto$1.postformat      = preParsePostFormat;
proto$1.relativeTime    = relativeTime;
proto$1.pastFuture      = pastFuture;
proto$1.set             = set;

// Month
proto$1.months            =        localeMonths;
proto$1.monthsShort       =        localeMonthsShort;
proto$1.monthsParse       =        localeMonthsParse;
proto$1.monthsRegex       = monthsRegex;
proto$1.monthsShortRegex  = monthsShortRegex;

// Week
proto$1.week = localeWeek;
proto$1.firstDayOfYear = localeFirstDayOfYear;
proto$1.firstDayOfWeek = localeFirstDayOfWeek;

// Day of Week
proto$1.weekdays       =        localeWeekdays;
proto$1.weekdaysMin    =        localeWeekdaysMin;
proto$1.weekdaysShort  =        localeWeekdaysShort;
proto$1.weekdaysParse  =        localeWeekdaysParse;

proto$1.weekdaysRegex       =        weekdaysRegex;
proto$1.weekdaysShortRegex  =        weekdaysShortRegex;
proto$1.weekdaysMinRegex    =        weekdaysMinRegex;

// Hours
proto$1.isPM = localeIsPM;
proto$1.meridiem = localeMeridiem;

function get$1 (format, index, field, setter) {
    var locale = getLocale();
    var utc = createUTC().set(setter, index);
    return locale[field](utc, format);
}

function listMonthsImpl (format, index, field) {
    if (isNumber(format)) {
        index = format;
        format = undefined;
    }

    format = format || '';

    if (index != null) {
        return get$1(format, index, field, 'month');
    }

    var i;
    var out = [];
    for (i = 0; i < 12; i++) {
        out[i] = get$1(format, i, field, 'month');
    }
    return out;
}

// ()
// (5)
// (fmt, 5)
// (fmt)
// (true)
// (true, 5)
// (true, fmt, 5)
// (true, fmt)
function listWeekdaysImpl (localeSorted, format, index, field) {
    if (typeof localeSorted === 'boolean') {
        if (isNumber(format)) {
            index = format;
            format = undefined;
        }

        format = format || '';
    } else {
        format = localeSorted;
        index = format;
        localeSorted = false;

        if (isNumber(format)) {
            index = format;
            format = undefined;
        }

        format = format || '';
    }

    var locale = getLocale(),
        shift = localeSorted ? locale._week.dow : 0;

    if (index != null) {
        return get$1(format, (index + shift) % 7, field, 'day');
    }

    var i;
    var out = [];
    for (i = 0; i < 7; i++) {
        out[i] = get$1(format, (i + shift) % 7, field, 'day');
    }
    return out;
}

function listMonths (format, index) {
    return listMonthsImpl(format, index, 'months');
}

function listMonthsShort (format, index) {
    return listMonthsImpl(format, index, 'monthsShort');
}

function listWeekdays (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
}

function listWeekdaysShort (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
}

function listWeekdaysMin (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
}

getSetGlobalLocale('en', {
    dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
    ordinal : function (number) {
        var b = number % 10,
            output = (toInt(number % 100 / 10) === 1) ? 'th' :
            (b === 1) ? 'st' :
            (b === 2) ? 'nd' :
            (b === 3) ? 'rd' : 'th';
        return number + output;
    }
});

// Side effect imports
hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);

var mathAbs = Math.abs;

function abs () {
    var data           = this._data;

    this._milliseconds = mathAbs(this._milliseconds);
    this._days         = mathAbs(this._days);
    this._months       = mathAbs(this._months);

    data.milliseconds  = mathAbs(data.milliseconds);
    data.seconds       = mathAbs(data.seconds);
    data.minutes       = mathAbs(data.minutes);
    data.hours         = mathAbs(data.hours);
    data.months        = mathAbs(data.months);
    data.years         = mathAbs(data.years);

    return this;
}

function addSubtract$1 (duration, input, value, direction) {
    var other = createDuration(input, value);

    duration._milliseconds += direction * other._milliseconds;
    duration._days         += direction * other._days;
    duration._months       += direction * other._months;

    return duration._bubble();
}

// supports only 2.0-style add(1, 's') or add(duration)
function add$1 (input, value) {
    return addSubtract$1(this, input, value, 1);
}

// supports only 2.0-style subtract(1, 's') or subtract(duration)
function subtract$1 (input, value) {
    return addSubtract$1(this, input, value, -1);
}

function absCeil (number) {
    if (number < 0) {
        return Math.floor(number);
    } else {
        return Math.ceil(number);
    }
}

function bubble () {
    var milliseconds = this._milliseconds;
    var days         = this._days;
    var months       = this._months;
    var data         = this._data;
    var seconds, minutes, hours, years, monthsFromDays;

    // if we have a mix of positive and negative values, bubble down first
    // check: https://github.com/moment/moment/issues/2166
    if (!((milliseconds >= 0 && days >= 0 && months >= 0) ||
            (milliseconds <= 0 && days <= 0 && months <= 0))) {
        milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
        days = 0;
        months = 0;
    }

    // The following code bubbles up values, see the tests for
    // examples of what that means.
    data.milliseconds = milliseconds % 1000;

    seconds           = absFloor(milliseconds / 1000);
    data.seconds      = seconds % 60;

    minutes           = absFloor(seconds / 60);
    data.minutes      = minutes % 60;

    hours             = absFloor(minutes / 60);
    data.hours        = hours % 24;

    days += absFloor(hours / 24);

    // convert days to months
    monthsFromDays = absFloor(daysToMonths(days));
    months += monthsFromDays;
    days -= absCeil(monthsToDays(monthsFromDays));

    // 12 months -> 1 year
    years = absFloor(months / 12);
    months %= 12;

    data.days   = days;
    data.months = months;
    data.years  = years;

    return this;
}

function daysToMonths (days) {
    // 400 years have 146097 days (taking into account leap year rules)
    // 400 years have 12 months === 4800
    return days * 4800 / 146097;
}

function monthsToDays (months) {
    // the reverse of daysToMonths
    return months * 146097 / 4800;
}

function as (units) {
    if (!this.isValid()) {
        return NaN;
    }
    var days;
    var months;
    var milliseconds = this._milliseconds;

    units = normalizeUnits(units);

    if (units === 'month' || units === 'year') {
        days   = this._days   + milliseconds / 864e5;
        months = this._months + daysToMonths(days);
        return units === 'month' ? months : months / 12;
    } else {
        // handle milliseconds separately because of floating point math errors (issue #1867)
        days = this._days + Math.round(monthsToDays(this._months));
        switch (units) {
            case 'week'   : return days / 7     + milliseconds / 6048e5;
            case 'day'    : return days         + milliseconds / 864e5;
            case 'hour'   : return days * 24    + milliseconds / 36e5;
            case 'minute' : return days * 1440  + milliseconds / 6e4;
            case 'second' : return days * 86400 + milliseconds / 1000;
            // Math.floor prevents floating point math errors here
            case 'millisecond': return Math.floor(days * 864e5) + milliseconds;
            default: throw new Error('Unknown unit ' + units);
        }
    }
}

// TODO: Use this.as('ms')?
function valueOf$1 () {
    if (!this.isValid()) {
        return NaN;
    }
    return (
        this._milliseconds +
        this._days * 864e5 +
        (this._months % 12) * 2592e6 +
        toInt(this._months / 12) * 31536e6
    );
}

function makeAs (alias) {
    return function () {
        return this.as(alias);
    };
}

var asMilliseconds = makeAs('ms');
var asSeconds      = makeAs('s');
var asMinutes      = makeAs('m');
var asHours        = makeAs('h');
var asDays         = makeAs('d');
var asWeeks        = makeAs('w');
var asMonths       = makeAs('M');
var asYears        = makeAs('y');

function clone$1 () {
    return createDuration(this);
}

function get$2 (units) {
    units = normalizeUnits(units);
    return this.isValid() ? this[units + 's']() : NaN;
}

function makeGetter(name) {
    return function () {
        return this.isValid() ? this._data[name] : NaN;
    };
}

var milliseconds = makeGetter('milliseconds');
var seconds      = makeGetter('seconds');
var minutes      = makeGetter('minutes');
var hours        = makeGetter('hours');
var days         = makeGetter('days');
var months       = makeGetter('months');
var years        = makeGetter('years');

function weeks () {
    return absFloor(this.days() / 7);
}

var round = Math.round;
var thresholds = {
    ss: 44,         // a few seconds to seconds
    s : 45,         // seconds to minute
    m : 45,         // minutes to hour
    h : 22,         // hours to day
    d : 26,         // days to month
    M : 11          // months to year
};

// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
    return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
}

function relativeTime$1 (posNegDuration, withoutSuffix, locale) {
    var duration = createDuration(posNegDuration).abs();
    var seconds  = round(duration.as('s'));
    var minutes  = round(duration.as('m'));
    var hours    = round(duration.as('h'));
    var days     = round(duration.as('d'));
    var months   = round(duration.as('M'));
    var years    = round(duration.as('y'));

    var a = seconds <= thresholds.ss && ['s', seconds]  ||
            seconds < thresholds.s   && ['ss', seconds] ||
            minutes <= 1             && ['m']           ||
            minutes < thresholds.m   && ['mm', minutes] ||
            hours   <= 1             && ['h']           ||
            hours   < thresholds.h   && ['hh', hours]   ||
            days    <= 1             && ['d']           ||
            days    < thresholds.d   && ['dd', days]    ||
            months  <= 1             && ['M']           ||
            months  < thresholds.M   && ['MM', months]  ||
            years   <= 1             && ['y']           || ['yy', years];

    a[2] = withoutSuffix;
    a[3] = +posNegDuration > 0;
    a[4] = locale;
    return substituteTimeAgo.apply(null, a);
}

// This function allows you to set the rounding function for relative time strings
function getSetRelativeTimeRounding (roundingFunction) {
    if (roundingFunction === undefined) {
        return round;
    }
    if (typeof(roundingFunction) === 'function') {
        round = roundingFunction;
        return true;
    }
    return false;
}

// This function allows you to set a threshold for relative time strings
function getSetRelativeTimeThreshold (threshold, limit) {
    if (thresholds[threshold] === undefined) {
        return false;
    }
    if (limit === undefined) {
        return thresholds[threshold];
    }
    thresholds[threshold] = limit;
    if (threshold === 's') {
        thresholds.ss = limit - 1;
    }
    return true;
}

function humanize (withSuffix) {
    if (!this.isValid()) {
        return this.localeData().invalidDate();
    }

    var locale = this.localeData();
    var output = relativeTime$1(this, !withSuffix, locale);

    if (withSuffix) {
        output = locale.pastFuture(+this, output);
    }

    return locale.postformat(output);
}

var abs$1 = Math.abs;

function sign(x) {
    return ((x > 0) - (x < 0)) || +x;
}

function toISOString$1() {
    // for ISO strings we do not use the normal bubbling rules:
    //  * milliseconds bubble up until they become hours
    //  * days do not bubble at all
    //  * months bubble up until they become years
    // This is because there is no context-free conversion between hours and days
    // (think of clock changes)
    // and also not between days and months (28-31 days per month)
    if (!this.isValid()) {
        return this.localeData().invalidDate();
    }

    var seconds = abs$1(this._milliseconds) / 1000;
    var days         = abs$1(this._days);
    var months       = abs$1(this._months);
    var minutes, hours, years;

    // 3600 seconds -> 60 minutes -> 1 hour
    minutes           = absFloor(seconds / 60);
    hours             = absFloor(minutes / 60);
    seconds %= 60;
    minutes %= 60;

    // 12 months -> 1 year
    years  = absFloor(months / 12);
    months %= 12;


    // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
    var Y = years;
    var M = months;
    var D = days;
    var h = hours;
    var m = minutes;
    var s = seconds ? seconds.toFixed(3).replace(/\.?0+$/, '') : '';
    var total = this.asSeconds();

    if (!total) {
        // this is the same as C#'s (Noda) and python (isodate)...
        // but not other JS (goog.date)
        return 'P0D';
    }

    var totalSign = total < 0 ? '-' : '';
    var ymSign = sign(this._months) !== sign(total) ? '-' : '';
    var daysSign = sign(this._days) !== sign(total) ? '-' : '';
    var hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';

    return totalSign + 'P' +
        (Y ? ymSign + Y + 'Y' : '') +
        (M ? ymSign + M + 'M' : '') +
        (D ? daysSign + D + 'D' : '') +
        ((h || m || s) ? 'T' : '') +
        (h ? hmsSign + h + 'H' : '') +
        (m ? hmsSign + m + 'M' : '') +
        (s ? hmsSign + s + 'S' : '');
}

var proto$2 = Duration.prototype;

proto$2.isValid        = isValid$1;
proto$2.abs            = abs;
proto$2.add            = add$1;
proto$2.subtract       = subtract$1;
proto$2.as             = as;
proto$2.asMilliseconds = asMilliseconds;
proto$2.asSeconds      = asSeconds;
proto$2.asMinutes      = asMinutes;
proto$2.asHours        = asHours;
proto$2.asDays         = asDays;
proto$2.asWeeks        = asWeeks;
proto$2.asMonths       = asMonths;
proto$2.asYears        = asYears;
proto$2.valueOf        = valueOf$1;
proto$2._bubble        = bubble;
proto$2.clone          = clone$1;
proto$2.get            = get$2;
proto$2.milliseconds   = milliseconds;
proto$2.seconds        = seconds;
proto$2.minutes        = minutes;
proto$2.hours          = hours;
proto$2.days           = days;
proto$2.weeks          = weeks;
proto$2.months         = months;
proto$2.years          = years;
proto$2.humanize       = humanize;
proto$2.toISOString    = toISOString$1;
proto$2.toString       = toISOString$1;
proto$2.toJSON         = toISOString$1;
proto$2.locale         = locale;
proto$2.localeData     = localeData;

// Deprecations
proto$2.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', toISOString$1);
proto$2.lang = lang;

// Side effect imports

// FORMATTING

addFormatToken('X', 0, 0, 'unix');
addFormatToken('x', 0, 0, 'valueOf');

// PARSING

addRegexToken('x', matchSigned);
addRegexToken('X', matchTimestamp);
addParseToken('X', function (input, array, config) {
    config._d = new Date(parseFloat(input, 10) * 1000);
});
addParseToken('x', function (input, array, config) {
    config._d = new Date(toInt(input));
});

// Side effect imports


hooks.version = '2.19.1';

setHookCallback(createLocal);

hooks.fn                    = proto;
hooks.min                   = min;
hooks.max                   = max;
hooks.now                   = now;
hooks.utc                   = createUTC;
hooks.unix                  = createUnix;
hooks.months                = listMonths;
hooks.isDate                = isDate;
hooks.locale                = getSetGlobalLocale;
hooks.invalid               = createInvalid;
hooks.duration              = createDuration;
hooks.isMoment              = isMoment;
hooks.weekdays              = listWeekdays;
hooks.parseZone             = createInZone;
hooks.localeData            = getLocale;
hooks.isDuration            = isDuration;
hooks.monthsShort           = listMonthsShort;
hooks.weekdaysMin           = listWeekdaysMin;
hooks.defineLocale          = defineLocale;
hooks.updateLocale          = updateLocale;
hooks.locales               = listLocales;
hooks.weekdaysShort         = listWeekdaysShort;
hooks.normalizeUnits        = normalizeUnits;
hooks.relativeTimeRounding  = getSetRelativeTimeRounding;
hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
hooks.calendarFormat        = getCalendarFormat;
hooks.prototype             = proto;

return hooks;

})));

/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(155)(module)))

/***/ }),
/* 155 */
/***/ (function(module, exports) {

module.exports = function(module) {
	if(!module.webpackPolyfill) {
		module.deprecate = function() {};
		module.paths = [];
		// module.parent = undefined by default
		if(!module.children) module.children = [];
		Object.defineProperty(module, "loaded", {
			enumerable: true,
			get: function() {
				return module.l;
			}
		});
		Object.defineProperty(module, "id", {
			enumerable: true,
			get: function() {
				return module.i;
			}
		});
		module.webpackPolyfill = 1;
	}
	return module;
};


/***/ }),
/* 156 */
/***/ (function(module, exports) {

function webpackEmptyContext(req) {
	throw new Error("Cannot find module '" + req + "'.");
}
webpackEmptyContext.keys = function() { return []; };
webpackEmptyContext.resolve = webpackEmptyContext;
module.exports = webpackEmptyContext;
webpackEmptyContext.id = 156;

/***/ }),
/* 157 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(global) {

/* eslint-disable require-jsdoc */

var _rng;

var globalVar = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : null;

if (globalVar && globalVar.crypto && crypto.getRandomValues) {
  // WHATWG crypto-based RNG - http://wiki.whatwg.org/wiki/Crypto
  // Moderately fast, high quality
  var _rnds8 = new Uint8Array(16);
  _rng = function whatwgRNG() {
    crypto.getRandomValues(_rnds8);
    return _rnds8;
  };
}

if (!_rng) {
  // Math.random()-based (RNG)
  //
  // If all else fails, use Math.random().  It's fast, but is of unspecified
  // quality.
  var _rnds = new Array(16);
  _rng = function _rng() {
    for (var i = 0, r; i < 16; i++) {
      if ((i & 0x03) === 0) r = Math.random() * 0x100000000;
      _rnds[i] = r >>> ((i & 0x03) << 3) & 0xff;
    }

    return _rnds;
  };
}

//     uuid.js
//
//     Copyright (c) 2010-2012 Robert Kieffer
//     MIT License - http://opensource.org/licenses/mit-license.php

// Unique ID creation requires a high quality random # generator.  We feature
// detect to determine the best RNG source, normalizing to a function that
// returns 128-bits of randomness, since that's what's usually required

//var _rng = require('./rng');

// Maps for number <-> hex string conversion
var _byteToHex = [];
var _hexToByte = {};
for (var i = 0; i < 256; i++) {
  _byteToHex[i] = (i + 0x100).toString(16).substr(1);
  _hexToByte[_byteToHex[i]] = i;
}

// **`parse()` - Parse a UUID into it's component bytes**
function parse(s, buf, offset) {
  var i = buf && offset || 0,
      ii = 0;

  buf = buf || [];
  s.toLowerCase().replace(/[0-9a-f]{2}/g, function (oct) {
    if (ii < 16) {
      // Don't overflow!
      buf[i + ii++] = _hexToByte[oct];
    }
  });

  // Zero out remaining bytes if string was short
  while (ii < 16) {
    buf[i + ii++] = 0;
  }

  return buf;
}

// **`unparse()` - Convert UUID byte array (ala parse()) into a string**
function unparse(buf, offset) {
  var i = offset || 0,
      bth = _byteToHex;
  return bth[buf[i++]] + bth[buf[i++]] + bth[buf[i++]] + bth[buf[i++]] + '-' + bth[buf[i++]] + bth[buf[i++]] + '-' + bth[buf[i++]] + bth[buf[i++]] + '-' + bth[buf[i++]] + bth[buf[i++]] + '-' + bth[buf[i++]] + bth[buf[i++]] + bth[buf[i++]] + bth[buf[i++]] + bth[buf[i++]] + bth[buf[i++]];
}

// **`v1()` - Generate time-based UUID**
//
// Inspired by https://github.com/LiosK/UUID.js
// and http://docs.python.org/library/uuid.html

// random #'s we need to init node and clockseq
var _seedBytes = _rng();

// Per 4.5, create and 48-bit node id, (47 random bits + multicast bit = 1)
var _nodeId = [_seedBytes[0] | 0x01, _seedBytes[1], _seedBytes[2], _seedBytes[3], _seedBytes[4], _seedBytes[5]];

// Per 4.2.2, randomize (14 bit) clockseq
var _clockseq = (_seedBytes[6] << 8 | _seedBytes[7]) & 0x3fff;

// Previous uuid creation time
var _lastMSecs = 0,
    _lastNSecs = 0;

// See https://github.com/broofa/node-uuid for API details
function v1(options, buf, offset) {
  var i = buf && offset || 0;
  var b = buf || [];

  options = options || {};

  var clockseq = options.clockseq !== undefined ? options.clockseq : _clockseq;

  // UUID timestamps are 100 nano-second units since the Gregorian epoch,
  // (1582-10-15 00:00).  JSNumbers aren't precise enough for this, so
  // time is handled internally as 'msecs' (integer milliseconds) and 'nsecs'
  // (100-nanoseconds offset from msecs) since unix epoch, 1970-01-01 00:00.
  var msecs = options.msecs !== undefined ? options.msecs : new Date().getTime();

  // Per 4.2.1.2, use count of uuid's generated during the current clock
  // cycle to simulate higher resolution clock
  var nsecs = options.nsecs !== undefined ? options.nsecs : _lastNSecs + 1;

  // Time since last uuid creation (in msecs)
  var dt = msecs - _lastMSecs + (nsecs - _lastNSecs) / 10000;

  // Per 4.2.1.2, Bump clockseq on clock regression
  if (dt < 0 && options.clockseq === undefined) {
    clockseq = clockseq + 1 & 0x3fff;
  }

  // Reset nsecs if clock regresses (new clockseq) or we've moved onto a new
  // time interval
  if ((dt < 0 || msecs > _lastMSecs) && options.nsecs === undefined) {
    nsecs = 0;
  }

  // Per 4.2.1.2 Throw error if too many uuids are requested
  if (nsecs >= 10000) {
    throw new Error('uuid.v1(): Can\'t create more than 10M uuids/sec');
  }

  _lastMSecs = msecs;
  _lastNSecs = nsecs;
  _clockseq = clockseq;

  // Per 4.1.4 - Convert from unix epoch to Gregorian epoch
  msecs += 12219292800000;

  // `time_low`
  var tl = ((msecs & 0xfffffff) * 10000 + nsecs) % 0x100000000;
  b[i++] = tl >>> 24 & 0xff;
  b[i++] = tl >>> 16 & 0xff;
  b[i++] = tl >>> 8 & 0xff;
  b[i++] = tl & 0xff;

  // `time_mid`
  var tmh = msecs / 0x100000000 * 10000 & 0xfffffff;
  b[i++] = tmh >>> 8 & 0xff;
  b[i++] = tmh & 0xff;

  // `time_high_and_version`
  b[i++] = tmh >>> 24 & 0xf | 0x10; // include version
  b[i++] = tmh >>> 16 & 0xff;

  // `clock_seq_hi_and_reserved` (Per 4.2.2 - include variant)
  b[i++] = clockseq >>> 8 | 0x80;

  // `clock_seq_low`
  b[i++] = clockseq & 0xff;

  // `node`
  var node = options.node || _nodeId;
  for (var n = 0; n < 6; n++) {
    b[i + n] = node[n];
  }

  return buf ? buf : unparse(b);
}

// **`v4()` - Generate random UUID**

// See https://github.com/broofa/node-uuid for API details
function v4(options, buf, offset) {
  // Deprecated - 'format' argument, as supported in v1.2
  var i = buf && offset || 0;

  if (typeof options == 'string') {
    buf = options == 'binary' ? new Array(16) : null;
    options = null;
  }
  options = options || {};

  var rnds = options.random || (options.rng || _rng)();

  // Per 4.4, set bits for version and `clock_seq_hi_and_reserved`
  rnds[6] = rnds[6] & 0x0f | 0x40;
  rnds[8] = rnds[8] & 0x3f | 0x80;

  // Copy bytes to buffer, if provided
  if (buf) {
    for (var ii = 0; ii < 16; ii++) {
      buf[i + ii] = rnds[ii];
    }
  }

  return buf || unparse(rnds);
}

// Export public API
var uuid = v4;
uuid.v1 = v1;
uuid.v4 = v4;
uuid.parse = parse;
uuid.unparse = unparse;

module.exports = uuid;
/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(158)))

/***/ }),
/* 158 */
/***/ (function(module, exports) {

var g;

// This works in non-strict mode
g = (function() {
	return this;
})();

try {
	// This works if eval is allowed (see CSP)
	g = g || Function("return this")() || (1,eval)("this");
} catch(e) {
	// This works if the window reference is available
	if(typeof window === "object")
		g = window;
}

// g can still be undefined, but nothing to do about it...
// We return undefined, instead of nothing here, so it's
// easier to handle this case. if(!global) { ...}

module.exports = g;


/***/ }),
/* 159 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


// utils
exports.util = __webpack_require__(2);
exports.DOMutil = __webpack_require__(14);

// data
exports.DataSet = __webpack_require__(11);
exports.DataView = __webpack_require__(12);
exports.Queue = __webpack_require__(43);

// Graph3d
exports.Graph3d = __webpack_require__(161);
exports.graph3d = {
  Camera: __webpack_require__(95),
  Filter: __webpack_require__(96),
  Point2d: __webpack_require__(91),
  Point3d: __webpack_require__(34),
  Slider: __webpack_require__(92),
  StepNumber: __webpack_require__(93)
};

// bundled external libraries
exports.moment = __webpack_require__(9);
exports.Hammer = __webpack_require__(10);
exports.keycharm = __webpack_require__(35);

/***/ }),
/* 160 */
/***/ (function(module, exports, __webpack_require__) {

var core = __webpack_require__(7);
var $JSON = core.JSON || (core.JSON = { stringify: JSON.stringify });
module.exports = function stringify(it) { // eslint-disable-line no-unused-vars
  return $JSON.stringify.apply($JSON, arguments);
};


/***/ }),
/* 161 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _assign = __webpack_require__(90);

var _assign2 = _interopRequireDefault(_assign);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var Emitter = __webpack_require__(44);
var util = __webpack_require__(2);
var Point3d = __webpack_require__(34);
var Point2d = __webpack_require__(91);
var Slider = __webpack_require__(92);
var StepNumber = __webpack_require__(93);
var Settings = __webpack_require__(94);
var Validator = __webpack_require__(15)['default'];

var _require = __webpack_require__(15),
    printStyle = _require.printStyle;

var _require2 = __webpack_require__(172),
    allOptions = _require2.allOptions;

var DataGroup = __webpack_require__(173);

/// enumerate the available styles
Graph3d.STYLE = Settings.STYLE;

/**
 * Following label is used in the settings to describe values which should be
 * determined by the code while running, from the current data and graph style.
 *
 * Using 'undefined' directly achieves the same thing, but this is more
 * descriptive by describing the intent.
 */
var autoByDefault = undefined;

/**
 * Default values for option settings.
 *
 * These are the values used when a Graph3d instance is initialized without
 * custom settings.
 *
 * If a field is not in this list, a default value of 'autoByDefault' is assumed,
 * which is just an alias for 'undefined'.
 */
Graph3d.DEFAULTS = {
  width: '400px',
  height: '400px',
  filterLabel: 'time',
  legendLabel: 'value',
  xLabel: 'x',
  yLabel: 'y',
  zLabel: 'z',
  xValueLabel: function xValueLabel(v) {
    return v;
  },
  yValueLabel: function yValueLabel(v) {
    return v;
  },
  zValueLabel: function zValueLabel(v) {
    return v;
  },
  showXAxis: true,
  showYAxis: true,
  showZAxis: true,
  showGrid: true,
  showPerspective: true,
  showShadow: false,
  keepAspectRatio: true,
  verticalRatio: 0.5, // 0.1 to 1.0, where 1.0 results in a 'cube'

  dotSizeRatio: 0.02, // size of the dots as a fraction of the graph width
  dotSizeMinFraction: 0.5, // size of min-value dot as a fraction of dotSizeRatio	
  dotSizeMaxFraction: 2.5, // size of max-value dot as a fraction of dotSizeRatio	

  showAnimationControls: autoByDefault,
  animationInterval: 1000, // milliseconds
  animationPreload: false,
  animationAutoStart: autoByDefault,

  axisColor: '#4D4D4D',
  gridColor: '#D3D3D3',
  xCenter: '55%',
  yCenter: '50%',

  style: Graph3d.STYLE.DOT,
  tooltip: false,

  tooltipStyle: {
    content: {
      padding: '10px',
      border: '1px solid #4d4d4d',
      color: '#1a1a1a',
      background: 'rgba(255,255,255,0.7)',
      borderRadius: '2px',
      boxShadow: '5px 5px 10px rgba(128,128,128,0.5)'
    },
    line: {
      height: '40px',
      width: '0',
      borderLeft: '1px solid #4d4d4d'
    },
    dot: {
      height: '0',
      width: '0',
      border: '5px solid #4d4d4d',
      borderRadius: '5px'
    }
  },

  dataColor: {
    fill: '#7DC1FF',
    stroke: '#3267D2',
    strokeWidth: 1 // px
  },

  cameraPosition: {
    horizontal: 1.0,
    vertical: 0.5,
    distance: 1.7
  },

  /*
    The following fields are 'auto by default', see above.
   */
  showLegend: autoByDefault, // determined by graph style
  backgroundColor: autoByDefault,

  xBarWidth: autoByDefault,
  yBarWidth: autoByDefault,
  valueMin: autoByDefault,
  valueMax: autoByDefault,
  xMin: autoByDefault,
  xMax: autoByDefault,
  xStep: autoByDefault,
  yMin: autoByDefault,
  yMax: autoByDefault,
  yStep: autoByDefault,
  zMin: autoByDefault,
  zMax: autoByDefault,
  zStep: autoByDefault
};

// -----------------------------------------------------------------------------
// Class Graph3d
// -----------------------------------------------------------------------------


/**
 * Graph3d displays data in 3d.
 *
 * Graph3d is developed in javascript as a Google Visualization Chart.
 *
 * @constructor Graph3d
 * @param {Element} container   The DOM element in which the Graph3d will
 *                              be created. Normally a div element.
 * @param {DataSet | DataView | Array} [data]
 * @param {Object} [options]
 */
function Graph3d(container, data, options) {
  if (!(this instanceof Graph3d)) {
    throw new SyntaxError('Constructor must be called with the new operator');
  }

  // create variables and set default values
  this.containerElement = container;

  this.dataGroup = new DataGroup();
  this.dataPoints = null; // The table with point objects

  // create a frame and canvas
  this.create();

  Settings.setDefaults(Graph3d.DEFAULTS, this);

  // the column indexes
  this.colX = undefined;
  this.colY = undefined;
  this.colZ = undefined;
  this.colValue = undefined;

  // TODO: customize axis range

  // apply options (also when undefined)
  this.setOptions(options);

  // apply data
  this.setData(data);
}

// Extend Graph3d with an Emitter mixin
Emitter(Graph3d.prototype);

/**
 * Calculate the scaling values, dependent on the range in x, y, and z direction
 */
Graph3d.prototype._setScale = function () {
  this.scale = new Point3d(1 / this.xRange.range(), 1 / this.yRange.range(), 1 / this.zRange.range());

  // keep aspect ration between x and y scale if desired
  if (this.keepAspectRatio) {
    if (this.scale.x < this.scale.y) {
      //noinspection JSSuspiciousNameCombination
      this.scale.y = this.scale.x;
    } else {
      //noinspection JSSuspiciousNameCombination
      this.scale.x = this.scale.y;
    }
  }

  // scale the vertical axis
  this.scale.z *= this.verticalRatio;
  // TODO: can this be automated? verticalRatio?

  // determine scale for (optional) value
  if (this.valueRange !== undefined) {
    this.scale.value = 1 / this.valueRange.range();
  }

  // position the camera arm
  var xCenter = this.xRange.center() * this.scale.x;
  var yCenter = this.yRange.center() * this.scale.y;
  var zCenter = this.zRange.center() * this.scale.z;
  this.camera.setArmLocation(xCenter, yCenter, zCenter);
};

/**
 * Convert a 3D location to a 2D location on screen
 * Source: ttp://en.wikipedia.org/wiki/3D_projection
 *
 * @param   {Point3d} point3d  A 3D point with parameters x, y, z
 * @returns {Point2d} point2d  A 2D point with parameters x, y
 */
Graph3d.prototype._convert3Dto2D = function (point3d) {
  var translation = this._convertPointToTranslation(point3d);
  return this._convertTranslationToScreen(translation);
};

/**
 * Convert a 3D location its translation seen from the camera
 * Source: http://en.wikipedia.org/wiki/3D_projection
 *
 * @param   {Point3d} point3d     A 3D point with parameters x, y, z
 * @returns {Point3d} translation A 3D point with parameters x, y, z This is
 *                                the translation of the point, seen from the
 *                                camera.
 */
Graph3d.prototype._convertPointToTranslation = function (point3d) {
  var cameraLocation = this.camera.getCameraLocation(),
      cameraRotation = this.camera.getCameraRotation(),
      ax = point3d.x * this.scale.x,
      ay = point3d.y * this.scale.y,
      az = point3d.z * this.scale.z,
      cx = cameraLocation.x,
      cy = cameraLocation.y,
      cz = cameraLocation.z,


  // calculate angles
  sinTx = Math.sin(cameraRotation.x),
      cosTx = Math.cos(cameraRotation.x),
      sinTy = Math.sin(cameraRotation.y),
      cosTy = Math.cos(cameraRotation.y),
      sinTz = Math.sin(cameraRotation.z),
      cosTz = Math.cos(cameraRotation.z),


  // calculate translation
  dx = cosTy * (sinTz * (ay - cy) + cosTz * (ax - cx)) - sinTy * (az - cz),
      dy = sinTx * (cosTy * (az - cz) + sinTy * (sinTz * (ay - cy) + cosTz * (ax - cx))) + cosTx * (cosTz * (ay - cy) - sinTz * (ax - cx)),
      dz = cosTx * (cosTy * (az - cz) + sinTy * (sinTz * (ay - cy) + cosTz * (ax - cx))) - sinTx * (cosTz * (ay - cy) - sinTz * (ax - cx));

  return new Point3d(dx, dy, dz);
};

/**
 * Convert a translation point to a point on the screen
 *
 * @param   {Point3d} translation A 3D point with parameters x, y, z This is
 *                                the translation of the point, seen from the
 *                                camera.
 * @returns {Point2d} point2d     A 2D point with parameters x, y
 */
Graph3d.prototype._convertTranslationToScreen = function (translation) {
  var ex = this.eye.x,
      ey = this.eye.y,
      ez = this.eye.z,
      dx = translation.x,
      dy = translation.y,
      dz = translation.z;

  // calculate position on screen from translation
  var bx;
  var by;
  if (this.showPerspective) {
    bx = (dx - ex) * (ez / dz);
    by = (dy - ey) * (ez / dz);
  } else {
    bx = dx * -(ez / this.camera.getArmLength());
    by = dy * -(ez / this.camera.getArmLength());
  }

  // shift and scale the point to the center of the screen
  // use the width of the graph to scale both horizontally and vertically.
  return new Point2d(this.currentXCenter + bx * this.frame.canvas.clientWidth, this.currentYCenter - by * this.frame.canvas.clientWidth);
};

/**
 * Calculate the translations and screen positions of all points
 *
 * @param {Array.<Point3d>} points
 * @private
 */
Graph3d.prototype._calcTranslations = function (points) {
  for (var i = 0; i < points.length; i++) {
    var point = points[i];
    point.trans = this._convertPointToTranslation(point.point);
    point.screen = this._convertTranslationToScreen(point.trans);

    // calculate the translation of the point at the bottom (needed for sorting)
    var transBottom = this._convertPointToTranslation(point.bottom);
    point.dist = this.showPerspective ? transBottom.length() : -transBottom.z;
  }

  // sort the points on depth of their (x,y) position (not on z)
  var sortDepth = function sortDepth(a, b) {
    return b.dist - a.dist;
  };
  points.sort(sortDepth);
};

/**
 * Transfer min/max values to the Graph3d instance.
 */
Graph3d.prototype._initializeRanges = function () {
  // TODO: later on, all min/maxes of all datagroups will be combined here
  var dg = this.dataGroup;
  this.xRange = dg.xRange;
  this.yRange = dg.yRange;
  this.zRange = dg.zRange;
  this.valueRange = dg.valueRange;

  // Values currently needed but which need to be sorted out for
  // the multiple graph case.
  this.xStep = dg.xStep;
  this.yStep = dg.yStep;
  this.zStep = dg.zStep;
  this.xBarWidth = dg.xBarWidth;
  this.yBarWidth = dg.yBarWidth;
  this.colX = dg.colX;
  this.colY = dg.colY;
  this.colZ = dg.colZ;
  this.colValue = dg.colValue;

  // set the scale dependent on the ranges.
  this._setScale();
};

/**
 * Return all data values as a list of Point3d objects
 *
 * @param {vis.DataSet} data
 * @returns {Array.<Object>}
 */
Graph3d.prototype.getDataPoints = function (data) {
  var dataPoints = [];

  for (var i = 0; i < data.length; i++) {
    var point = new Point3d();
    point.x = data[i][this.colX] || 0;
    point.y = data[i][this.colY] || 0;
    point.z = data[i][this.colZ] || 0;
    point.data = data[i];

    if (this.colValue !== undefined) {
      point.value = data[i][this.colValue] || 0;
    }

    var obj = {};
    obj.point = point;
    obj.bottom = new Point3d(point.x, point.y, this.zRange.min);
    obj.trans = undefined;
    obj.screen = undefined;

    dataPoints.push(obj);
  }

  return dataPoints;
};

/**
 * Filter the data based on the current filter
 *
 * @param   {Array} data
 * @returns {Array} dataPoints Array with point objects which can be drawn on
 *                             screen
 */
Graph3d.prototype._getDataPoints = function (data) {
  // TODO: store the created matrix dataPoints in the filters instead of
  //       reloading each time.
  var x, y, i, obj;

  var dataPoints = [];

  if (this.style === Graph3d.STYLE.GRID || this.style === Graph3d.STYLE.SURFACE) {
    // copy all values from the data table to a matrix
    // the provided values are supposed to form a grid of (x,y) positions

    // create two lists with all present x and y values
    var dataX = this.dataGroup.getDistinctValues(this.colX, data);
    var dataY = this.dataGroup.getDistinctValues(this.colY, data);

    dataPoints = this.getDataPoints(data);

    // create a grid, a 2d matrix, with all values.
    var dataMatrix = []; // temporary data matrix
    for (i = 0; i < dataPoints.length; i++) {
      obj = dataPoints[i];

      // TODO: implement Array().indexOf() for Internet Explorer
      var xIndex = dataX.indexOf(obj.point.x);
      var yIndex = dataY.indexOf(obj.point.y);

      if (dataMatrix[xIndex] === undefined) {
        dataMatrix[xIndex] = [];
      }

      dataMatrix[xIndex][yIndex] = obj;
    }

    // fill in the pointers to the neighbors.
    for (x = 0; x < dataMatrix.length; x++) {
      for (y = 0; y < dataMatrix[x].length; y++) {
        if (dataMatrix[x][y]) {
          dataMatrix[x][y].pointRight = x < dataMatrix.length - 1 ? dataMatrix[x + 1][y] : undefined;
          dataMatrix[x][y].pointTop = y < dataMatrix[x].length - 1 ? dataMatrix[x][y + 1] : undefined;
          dataMatrix[x][y].pointCross = x < dataMatrix.length - 1 && y < dataMatrix[x].length - 1 ? dataMatrix[x + 1][y + 1] : undefined;
        }
      }
    }
  } else {
    // 'dot', 'dot-line', etc.
    this._checkValueField(data);
    dataPoints = this.getDataPoints(data);

    if (this.style === Graph3d.STYLE.LINE) {
      // Add next member points for line drawing
      for (i = 0; i < dataPoints.length; i++) {
        if (i > 0) {
          dataPoints[i - 1].pointNext = dataPoints[i];
        }
      }
    }
  }

  return dataPoints;
};

/**
 * Create the main frame for the Graph3d.
 *
 * This function is executed once when a Graph3d object is created. The frame
 * contains a canvas, and this canvas contains all objects like the axis and
 * nodes.
 */
Graph3d.prototype.create = function () {
  // remove all elements from the container element.
  while (this.containerElement.hasChildNodes()) {
    this.containerElement.removeChild(this.containerElement.firstChild);
  }

  this.frame = document.createElement('div');
  this.frame.style.position = 'relative';
  this.frame.style.overflow = 'hidden';

  // create the graph canvas (HTML canvas element)
  this.frame.canvas = document.createElement('canvas');
  this.frame.canvas.style.position = 'relative';
  this.frame.appendChild(this.frame.canvas);
  //if (!this.frame.canvas.getContext) {
  {
    var noCanvas = document.createElement('DIV');
    noCanvas.style.color = 'red';
    noCanvas.style.fontWeight = 'bold';
    noCanvas.style.padding = '10px';
    noCanvas.innerHTML = 'Error: your browser does not support HTML canvas';
    this.frame.canvas.appendChild(noCanvas);
  }

  this.frame.filter = document.createElement('div');
  this.frame.filter.style.position = 'absolute';
  this.frame.filter.style.bottom = '0px';
  this.frame.filter.style.left = '0px';
  this.frame.filter.style.width = '100%';
  this.frame.appendChild(this.frame.filter);

  // add event listeners to handle moving and zooming the contents
  var me = this;
  var onmousedown = function onmousedown(event) {
    me._onMouseDown(event);
  };
  var ontouchstart = function ontouchstart(event) {
    me._onTouchStart(event);
  };
  var onmousewheel = function onmousewheel(event) {
    me._onWheel(event);
  };
  var ontooltip = function ontooltip(event) {
    me._onTooltip(event);
  };
  var onclick = function onclick(event) {
    me._onClick(event);
  };
  // TODO: these events are never cleaned up... can give a 'memory leakage'

  util.addEventListener(this.frame.canvas, 'mousedown', onmousedown);
  util.addEventListener(this.frame.canvas, 'touchstart', ontouchstart);
  util.addEventListener(this.frame.canvas, 'mousewheel', onmousewheel);
  util.addEventListener(this.frame.canvas, 'mousemove', ontooltip);
  util.addEventListener(this.frame.canvas, 'click', onclick);

  // add the new graph to the container element
  this.containerElement.appendChild(this.frame);
};

/**
 * Set a new size for the graph
 *
 * @param {number} width
 * @param {number} height
 * @private
 */
Graph3d.prototype._setSize = function (width, height) {
  this.frame.style.width = width;
  this.frame.style.height = height;

  this._resizeCanvas();
};

/**
 * Resize the canvas to the current size of the frame
 */
Graph3d.prototype._resizeCanvas = function () {
  this.frame.canvas.style.width = '100%';
  this.frame.canvas.style.height = '100%';

  this.frame.canvas.width = this.frame.canvas.clientWidth;
  this.frame.canvas.height = this.frame.canvas.clientHeight;

  // adjust with for margin
  this.frame.filter.style.width = this.frame.canvas.clientWidth - 2 * 10 + 'px';
};

/**
 * Start playing the animation, if requested and filter present. Only applicable
 * when animation data is available.
 */
Graph3d.prototype.animationStart = function () {
  // start animation when option is true
  if (!this.animationAutoStart || !this.dataGroup.dataFilter) return;

  if (!this.frame.filter || !this.frame.filter.slider) throw new Error('No animation available');

  this.frame.filter.slider.play();
};

/**
 * Stop animation
 */
Graph3d.prototype.animationStop = function () {
  if (!this.frame.filter || !this.frame.filter.slider) return;

  this.frame.filter.slider.stop();
};

/**
 * Resize the center position based on the current values in this.xCenter
 * and this.yCenter (which are strings with a percentage or a value
 * in pixels). The center positions are the variables this.currentXCenter
 * and this.currentYCenter
 */
Graph3d.prototype._resizeCenter = function () {
  // calculate the horizontal center position
  if (this.xCenter.charAt(this.xCenter.length - 1) === '%') {
    this.currentXCenter = parseFloat(this.xCenter) / 100 * this.frame.canvas.clientWidth;
  } else {
    this.currentXCenter = parseFloat(this.xCenter); // supposed to be in px
  }

  // calculate the vertical center position
  if (this.yCenter.charAt(this.yCenter.length - 1) === '%') {
    this.currentYCenter = parseFloat(this.yCenter) / 100 * (this.frame.canvas.clientHeight - this.frame.filter.clientHeight);
  } else {
    this.currentYCenter = parseFloat(this.yCenter); // supposed to be in px
  }
};

/**
 * Retrieve the current camera rotation
 *
 * @returns {object} An object with parameters horizontal, vertical, and
 *                   distance
 */
Graph3d.prototype.getCameraPosition = function () {
  var pos = this.camera.getArmRotation();
  pos.distance = this.camera.getArmLength();
  return pos;
};

/**
 * Load data into the 3D Graph
 *
 * @param {vis.DataSet} data
 * @private
 */
Graph3d.prototype._readData = function (data) {
  // read the data
  this.dataPoints = this.dataGroup.initializeData(this, data, this.style);

  this._initializeRanges();
  this._redrawFilter();
};

/**
 * Replace the dataset of the Graph3d
 *
 * @param {Array | DataSet | DataView} data
 */
Graph3d.prototype.setData = function (data) {
  if (data === undefined || data === null) return;

  this._readData(data);
  this.redraw();
  this.animationStart();
};

/**
 * Update the options. Options will be merged with current options
 *
 * @param {Object} options
 */
Graph3d.prototype.setOptions = function (options) {
  if (options === undefined) return;

  var errorFound = Validator.validate(options, allOptions);
  if (errorFound === true) {
    console.log('%cErrors have been found in the supplied options object.', printStyle);
  }

  this.animationStop();

  Settings.setOptions(options, this);
  this.setPointDrawingMethod();
  this._setSize(this.width, this.height);

  this.setData(this.dataGroup.getDataTable());
  this.animationStart();
};

/**
 * Determine which point drawing method to use for the current graph style.
 */
Graph3d.prototype.setPointDrawingMethod = function () {
  var method = undefined;

  switch (this.style) {
    case Graph3d.STYLE.BAR:
      method = Graph3d.prototype._redrawBarGraphPoint;
      break;
    case Graph3d.STYLE.BARCOLOR:
      method = Graph3d.prototype._redrawBarColorGraphPoint;
      break;
    case Graph3d.STYLE.BARSIZE:
      method = Graph3d.prototype._redrawBarSizeGraphPoint;
      break;
    case Graph3d.STYLE.DOT:
      method = Graph3d.prototype._redrawDotGraphPoint;
      break;
    case Graph3d.STYLE.DOTLINE:
      method = Graph3d.prototype._redrawDotLineGraphPoint;
      break;
    case Graph3d.STYLE.DOTCOLOR:
      method = Graph3d.prototype._redrawDotColorGraphPoint;
      break;
    case Graph3d.STYLE.DOTSIZE:
      method = Graph3d.prototype._redrawDotSizeGraphPoint;
      break;
    case Graph3d.STYLE.SURFACE:
      method = Graph3d.prototype._redrawSurfaceGraphPoint;
      break;
    case Graph3d.STYLE.GRID:
      method = Graph3d.prototype._redrawGridGraphPoint;
      break;
    case Graph3d.STYLE.LINE:
      method = Graph3d.prototype._redrawLineGraphPoint;
      break;
    default:
      throw new Error('Can not determine point drawing method ' + 'for graph style \'' + this.style + '\'');
  }

  this._pointDrawingMethod = method;
};

/**
 * Redraw the Graph.
 */
Graph3d.prototype.redraw = function () {
  if (this.dataPoints === undefined) {
    throw new Error('Graph data not initialized');
  }

  this._resizeCanvas();
  this._resizeCenter();
  this._redrawSlider();
  this._redrawClear();
  this._redrawAxis();

  this._redrawDataGraph();

  this._redrawInfo();
  this._redrawLegend();
};

/**
 * Get drawing context without exposing canvas
 *
 * @returns {CanvasRenderingContext2D}
 * @private
 */
Graph3d.prototype._getContext = function () {
  var canvas = this.frame.canvas;
  var ctx = canvas.getContext('2d');

  ctx.lineJoin = 'round';
  ctx.lineCap = 'round';

  return ctx;
};

/**
 * Clear the canvas before redrawing
 */
Graph3d.prototype._redrawClear = function () {
  var canvas = this.frame.canvas;
  var ctx = canvas.getContext('2d');

  ctx.clearRect(0, 0, canvas.width, canvas.height);
};

Graph3d.prototype._dotSize = function () {
  return this.frame.clientWidth * this.dotSizeRatio;
};

/**
 * Get legend width
 *
 * @returns {*}
 * @private
 */
Graph3d.prototype._getLegendWidth = function () {
  var width;

  if (this.style === Graph3d.STYLE.DOTSIZE) {
    var dotSize = this._dotSize();
    //width =  dotSize / 2 + dotSize * 2;
    width = dotSize * this.dotSizeMaxFraction;
  } else if (this.style === Graph3d.STYLE.BARSIZE) {
    width = this.xBarWidth;
  } else {
    width = 20;
  }
  return width;
};

/**
 * Redraw the legend based on size, dot color, or surface height
 */
Graph3d.prototype._redrawLegend = function () {

  //Return without drawing anything, if no legend is specified
  if (this.showLegend !== true) {
    return;
  }

  // Do not draw legend when graph style does not support
  if (this.style === Graph3d.STYLE.LINE || this.style === Graph3d.STYLE.BARSIZE //TODO add legend support for BARSIZE
  ) {
      return;
    }

  // Legend types - size and color. Determine if size legend.
  var isSizeLegend = this.style === Graph3d.STYLE.BARSIZE || this.style === Graph3d.STYLE.DOTSIZE;

  // Legend is either tracking z values or style values. This flag if false means use z values.
  var isValueLegend = this.style === Graph3d.STYLE.DOTSIZE || this.style === Graph3d.STYLE.DOTCOLOR || this.style === Graph3d.STYLE.BARCOLOR;

  var height = Math.max(this.frame.clientHeight * 0.25, 100);
  var top = this.margin;
  var width = this._getLegendWidth(); // px - overwritten by size legend
  var right = this.frame.clientWidth - this.margin;
  var left = right - width;
  var bottom = top + height;

  var ctx = this._getContext();
  ctx.lineWidth = 1;
  ctx.font = '14px arial'; // TODO: put in options

  if (isSizeLegend === false) {
    // draw the color bar
    var ymin = 0;
    var ymax = height; // Todo: make height customizable
    var y;

    for (y = ymin; y < ymax; y++) {
      var f = (y - ymin) / (ymax - ymin);
      var hue = f * 240;
      var color = this._hsv2rgb(hue, 1, 1);

      ctx.strokeStyle = color;
      ctx.beginPath();
      ctx.moveTo(left, top + y);
      ctx.lineTo(right, top + y);
      ctx.stroke();
    }
    ctx.strokeStyle = this.axisColor;
    ctx.strokeRect(left, top, width, height);
  } else {

    // draw the size legend box
    var widthMin;
    if (this.style === Graph3d.STYLE.DOTSIZE) {
      // Get the proportion to max and min right
      widthMin = width * (this.dotSizeMinFraction / this.dotSizeMaxFraction);
    } else if (this.style === Graph3d.STYLE.BARSIZE) {
      //widthMin = this.xBarWidth * 0.2 this is wrong - barwidth measures in terms of xvalues
    }
    ctx.strokeStyle = this.axisColor;
    ctx.fillStyle = this.dataColor.fill;
    ctx.beginPath();
    ctx.moveTo(left, top);
    ctx.lineTo(right, top);
    ctx.lineTo(left + widthMin, bottom);
    ctx.lineTo(left, bottom);
    ctx.closePath();
    ctx.fill();
    ctx.stroke();
  }

  // print value text along the legend edge
  var gridLineLen = 5; // px

  var legendMin = isValueLegend ? this.valueRange.min : this.zRange.min;
  var legendMax = isValueLegend ? this.valueRange.max : this.zRange.max;
  var step = new StepNumber(legendMin, legendMax, (legendMax - legendMin) / 5, true);
  step.start(true);

  var from;
  var to;
  while (!step.end()) {
    y = bottom - (step.getCurrent() - legendMin) / (legendMax - legendMin) * height;
    from = new Point2d(left - gridLineLen, y);
    to = new Point2d(left, y);
    this._line(ctx, from, to);

    ctx.textAlign = 'right';
    ctx.textBaseline = 'middle';
    ctx.fillStyle = this.axisColor;
    ctx.fillText(step.getCurrent(), left - 2 * gridLineLen, y);

    step.next();
  }

  ctx.textAlign = 'right';
  ctx.textBaseline = 'top';
  var label = this.legendLabel;
  ctx.fillText(label, right, bottom + this.margin);
};

/**
 * Redraw the filter
 */
Graph3d.prototype._redrawFilter = function () {
  var dataFilter = this.dataGroup.dataFilter;
  var filter = this.frame.filter;
  filter.innerHTML = '';

  if (!dataFilter) {
    filter.slider = undefined;
    return;
  }

  var options = {
    'visible': this.showAnimationControls
  };
  var slider = new Slider(filter, options);
  filter.slider = slider;

  // TODO: css here is not nice here...
  filter.style.padding = '10px';
  //this.frame.filter.style.backgroundColor = '#EFEFEF';

  slider.setValues(dataFilter.values);
  slider.setPlayInterval(this.animationInterval);

  // create an event handler
  var me = this;
  var onchange = function onchange() {
    var dataFilter = me.dataGroup.dataFilter;
    var index = slider.getIndex();

    dataFilter.selectValue(index);
    me.dataPoints = dataFilter._getDataPoints();

    me.redraw();
  };

  slider.setOnChangeCallback(onchange);
};

/**
 * Redraw the slider
 */
Graph3d.prototype._redrawSlider = function () {
  if (this.frame.filter.slider !== undefined) {
    this.frame.filter.slider.redraw();
  }
};

/**
 * Redraw common information
 */
Graph3d.prototype._redrawInfo = function () {
  var info = this.dataGroup.getInfo();
  if (info === undefined) return;

  var ctx = this._getContext();

  ctx.font = '14px arial'; // TODO: put in options
  ctx.lineStyle = 'gray';
  ctx.fillStyle = 'gray';
  ctx.textAlign = 'left';
  ctx.textBaseline = 'top';

  var x = this.margin;
  var y = this.margin;
  ctx.fillText(info, x, y);
};

/**
 * Draw a line between 2d points 'from' and 'to'.
 *
 * If stroke style specified, set that as well.
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {vis.Point2d} from
 * @param {vis.Point2d} to
 * @param {string} [strokeStyle]
 * @private
 */
Graph3d.prototype._line = function (ctx, from, to, strokeStyle) {
  if (strokeStyle !== undefined) {
    ctx.strokeStyle = strokeStyle;
  }

  ctx.beginPath();
  ctx.moveTo(from.x, from.y);
  ctx.lineTo(to.x, to.y);
  ctx.stroke();
};

/**
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {vis.Point3d} point3d
 * @param {string} text
 * @param {number} armAngle
 * @param {number} [yMargin=0]
 */
Graph3d.prototype.drawAxisLabelX = function (ctx, point3d, text, armAngle, yMargin) {
  if (yMargin === undefined) {
    yMargin = 0;
  }

  var point2d = this._convert3Dto2D(point3d);

  if (Math.cos(armAngle * 2) > 0) {
    ctx.textAlign = 'center';
    ctx.textBaseline = 'top';
    point2d.y += yMargin;
  } else if (Math.sin(armAngle * 2) < 0) {
    ctx.textAlign = 'right';
    ctx.textBaseline = 'middle';
  } else {
    ctx.textAlign = 'left';
    ctx.textBaseline = 'middle';
  }

  ctx.fillStyle = this.axisColor;
  ctx.fillText(text, point2d.x, point2d.y);
};

/**
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {vis.Point3d} point3d
 * @param {string} text
 * @param {number} armAngle
 * @param {number} [yMargin=0]
 */
Graph3d.prototype.drawAxisLabelY = function (ctx, point3d, text, armAngle, yMargin) {
  if (yMargin === undefined) {
    yMargin = 0;
  }

  var point2d = this._convert3Dto2D(point3d);

  if (Math.cos(armAngle * 2) < 0) {
    ctx.textAlign = 'center';
    ctx.textBaseline = 'top';
    point2d.y += yMargin;
  } else if (Math.sin(armAngle * 2) > 0) {
    ctx.textAlign = 'right';
    ctx.textBaseline = 'middle';
  } else {
    ctx.textAlign = 'left';
    ctx.textBaseline = 'middle';
  }

  ctx.fillStyle = this.axisColor;
  ctx.fillText(text, point2d.x, point2d.y);
};

/**
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {vis.Point3d} point3d
 * @param {string} text
 * @param {number} [offset=0]
 */
Graph3d.prototype.drawAxisLabelZ = function (ctx, point3d, text, offset) {
  if (offset === undefined) {
    offset = 0;
  }

  var point2d = this._convert3Dto2D(point3d);
  ctx.textAlign = 'right';
  ctx.textBaseline = 'middle';
  ctx.fillStyle = this.axisColor;
  ctx.fillText(text, point2d.x - offset, point2d.y);
};

/**


/**
 * Draw a line between 2d points 'from' and 'to'.
 *
 * If stroke style specified, set that as well.
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {vis.Point2d} from
 * @param {vis.Point2d} to
 * @param {string} [strokeStyle]
 * @private
 */
Graph3d.prototype._line3d = function (ctx, from, to, strokeStyle) {
  var from2d = this._convert3Dto2D(from);
  var to2d = this._convert3Dto2D(to);

  this._line(ctx, from2d, to2d, strokeStyle);
};

/**
 * Redraw the axis
 */
Graph3d.prototype._redrawAxis = function () {
  var ctx = this._getContext(),
      from,
      to,
      step,
      prettyStep,
      text,
      xText,
      yText,
      zText,
      offset,
      xOffset,
      yOffset;

  // TODO: get the actual rendered style of the containerElement
  //ctx.font = this.containerElement.style.font;
  ctx.font = 24 / this.camera.getArmLength() + 'px arial';

  // calculate the length for the short grid lines
  var gridLenX = 0.025 / this.scale.x;
  var gridLenY = 0.025 / this.scale.y;
  var textMargin = 5 / this.camera.getArmLength(); // px
  var armAngle = this.camera.getArmRotation().horizontal;
  var armVector = new Point2d(Math.cos(armAngle), Math.sin(armAngle));

  var xRange = this.xRange;
  var yRange = this.yRange;
  var zRange = this.zRange;
  var point3d;

  // draw x-grid lines
  ctx.lineWidth = 1;
  prettyStep = this.defaultXStep === undefined;
  step = new StepNumber(xRange.min, xRange.max, this.xStep, prettyStep);
  step.start(true);

  while (!step.end()) {
    var x = step.getCurrent();

    if (this.showGrid) {
      from = new Point3d(x, yRange.min, zRange.min);
      to = new Point3d(x, yRange.max, zRange.min);
      this._line3d(ctx, from, to, this.gridColor);
    } else if (this.showXAxis) {
      from = new Point3d(x, yRange.min, zRange.min);
      to = new Point3d(x, yRange.min + gridLenX, zRange.min);
      this._line3d(ctx, from, to, this.axisColor);

      from = new Point3d(x, yRange.max, zRange.min);
      to = new Point3d(x, yRange.max - gridLenX, zRange.min);
      this._line3d(ctx, from, to, this.axisColor);
    }

    if (this.showXAxis) {
      yText = armVector.x > 0 ? yRange.min : yRange.max;
      point3d = new Point3d(x, yText, zRange.min);
      var msg = '  ' + this.xValueLabel(x) + '  ';
      this.drawAxisLabelX(ctx, point3d, msg, armAngle, textMargin);
    }

    step.next();
  }

  // draw y-grid lines
  ctx.lineWidth = 1;
  prettyStep = this.defaultYStep === undefined;
  step = new StepNumber(yRange.min, yRange.max, this.yStep, prettyStep);
  step.start(true);

  while (!step.end()) {
    var y = step.getCurrent();

    if (this.showGrid) {
      from = new Point3d(xRange.min, y, zRange.min);
      to = new Point3d(xRange.max, y, zRange.min);
      this._line3d(ctx, from, to, this.gridColor);
    } else if (this.showYAxis) {
      from = new Point3d(xRange.min, y, zRange.min);
      to = new Point3d(xRange.min + gridLenY, y, zRange.min);
      this._line3d(ctx, from, to, this.axisColor);

      from = new Point3d(xRange.max, y, zRange.min);
      to = new Point3d(xRange.max - gridLenY, y, zRange.min);
      this._line3d(ctx, from, to, this.axisColor);
    }

    if (this.showYAxis) {
      xText = armVector.y > 0 ? xRange.min : xRange.max;
      point3d = new Point3d(xText, y, zRange.min);
      var _msg = '  ' + this.yValueLabel(y) + '  ';
      this.drawAxisLabelY(ctx, point3d, _msg, armAngle, textMargin);
    }

    step.next();
  }

  // draw z-grid lines and axis
  if (this.showZAxis) {
    ctx.lineWidth = 1;
    prettyStep = this.defaultZStep === undefined;
    step = new StepNumber(zRange.min, zRange.max, this.zStep, prettyStep);
    step.start(true);

    xText = armVector.x > 0 ? xRange.min : xRange.max;
    yText = armVector.y < 0 ? yRange.min : yRange.max;

    while (!step.end()) {
      var z = step.getCurrent();

      // TODO: make z-grid lines really 3d?
      var from3d = new Point3d(xText, yText, z);
      var from2d = this._convert3Dto2D(from3d);
      to = new Point2d(from2d.x - textMargin, from2d.y);
      this._line(ctx, from2d, to, this.axisColor);

      var _msg2 = this.zValueLabel(z) + ' ';
      this.drawAxisLabelZ(ctx, from3d, _msg2, 5);

      step.next();
    }

    ctx.lineWidth = 1;
    from = new Point3d(xText, yText, zRange.min);
    to = new Point3d(xText, yText, zRange.max);
    this._line3d(ctx, from, to, this.axisColor);
  }

  // draw x-axis
  if (this.showXAxis) {
    var xMin2d;
    var xMax2d;
    ctx.lineWidth = 1;

    // line at yMin
    xMin2d = new Point3d(xRange.min, yRange.min, zRange.min);
    xMax2d = new Point3d(xRange.max, yRange.min, zRange.min);
    this._line3d(ctx, xMin2d, xMax2d, this.axisColor);
    // line at ymax
    xMin2d = new Point3d(xRange.min, yRange.max, zRange.min);
    xMax2d = new Point3d(xRange.max, yRange.max, zRange.min);
    this._line3d(ctx, xMin2d, xMax2d, this.axisColor);
  }

  // draw y-axis
  if (this.showYAxis) {
    ctx.lineWidth = 1;
    // line at xMin
    from = new Point3d(xRange.min, yRange.min, zRange.min);
    to = new Point3d(xRange.min, yRange.max, zRange.min);
    this._line3d(ctx, from, to, this.axisColor);
    // line at xMax
    from = new Point3d(xRange.max, yRange.min, zRange.min);
    to = new Point3d(xRange.max, yRange.max, zRange.min);
    this._line3d(ctx, from, to, this.axisColor);
  }

  // draw x-label
  var xLabel = this.xLabel;
  if (xLabel.length > 0 && this.showXAxis) {
    yOffset = 0.1 / this.scale.y;
    xText = (xRange.max + 3 * xRange.min) / 4;
    yText = armVector.x > 0 ? yRange.min - yOffset : yRange.max + yOffset;
    text = new Point3d(xText, yText, zRange.min);
    this.drawAxisLabelX(ctx, text, xLabel, armAngle);
  }

  // draw y-label
  var yLabel = this.yLabel;
  if (yLabel.length > 0 && this.showYAxis) {
    xOffset = 0.1 / this.scale.x;
    xText = armVector.y > 0 ? xRange.min - xOffset : xRange.max + xOffset;
    yText = (yRange.max + 3 * yRange.min) / 4;
    text = new Point3d(xText, yText, zRange.min);

    this.drawAxisLabelY(ctx, text, yLabel, armAngle);
  }

  // draw z-label
  var zLabel = this.zLabel;
  if (zLabel.length > 0 && this.showZAxis) {
    offset = 30; // pixels.  // TODO: relate to the max width of the values on the z axis?
    xText = armVector.x > 0 ? xRange.min : xRange.max;
    yText = armVector.y < 0 ? yRange.min : yRange.max;
    zText = (zRange.max + 3 * zRange.min) / 4;
    text = new Point3d(xText, yText, zText);

    this.drawAxisLabelZ(ctx, text, zLabel, offset);
  }
};

/**
 * Calculate the color based on the given value.
 * @param {number} H   Hue, a value be between 0 and 360
 * @param {number} S   Saturation, a value between 0 and 1
 * @param {number} V   Value, a value between 0 and 1
 * @returns {string}
 * @private
 */
Graph3d.prototype._hsv2rgb = function (H, S, V) {
  var R, G, B, C, Hi, X;

  C = V * S;
  Hi = Math.floor(H / 60); // hi = 0,1,2,3,4,5
  X = C * (1 - Math.abs(H / 60 % 2 - 1));

  switch (Hi) {
    case 0:
      R = C;G = X;B = 0;break;
    case 1:
      R = X;G = C;B = 0;break;
    case 2:
      R = 0;G = C;B = X;break;
    case 3:
      R = 0;G = X;B = C;break;
    case 4:
      R = X;G = 0;B = C;break;
    case 5:
      R = C;G = 0;B = X;break;

    default:
      R = 0;G = 0;B = 0;break;
  }

  return 'RGB(' + parseInt(R * 255) + ',' + parseInt(G * 255) + ',' + parseInt(B * 255) + ')';
};

/**
 *
 * @param {vis.Point3d} point
 * @returns {*}
 * @private
 */
Graph3d.prototype._getStrokeWidth = function (point) {
  if (point !== undefined) {
    if (this.showPerspective) {
      return 1 / -point.trans.z * this.dataColor.strokeWidth;
    } else {
      return -(this.eye.z / this.camera.getArmLength()) * this.dataColor.strokeWidth;
    }
  }

  return this.dataColor.strokeWidth;
};

// -----------------------------------------------------------------------------
// Drawing primitives for the graphs
// -----------------------------------------------------------------------------


/**
 * Draw a bar element in the view with the given properties.
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {Object} point
 * @param {number} xWidth
 * @param {number} yWidth
 * @param {string} color
 * @param {string} borderColor
 * @private
 */
Graph3d.prototype._redrawBar = function (ctx, point, xWidth, yWidth, color, borderColor) {
  var surface;

  // calculate all corner points
  var me = this;
  var point3d = point.point;
  var zMin = this.zRange.min;
  var top = [{ point: new Point3d(point3d.x - xWidth, point3d.y - yWidth, point3d.z) }, { point: new Point3d(point3d.x + xWidth, point3d.y - yWidth, point3d.z) }, { point: new Point3d(point3d.x + xWidth, point3d.y + yWidth, point3d.z) }, { point: new Point3d(point3d.x - xWidth, point3d.y + yWidth, point3d.z) }];
  var bottom = [{ point: new Point3d(point3d.x - xWidth, point3d.y - yWidth, zMin) }, { point: new Point3d(point3d.x + xWidth, point3d.y - yWidth, zMin) }, { point: new Point3d(point3d.x + xWidth, point3d.y + yWidth, zMin) }, { point: new Point3d(point3d.x - xWidth, point3d.y + yWidth, zMin) }];

  // calculate screen location of the points
  top.forEach(function (obj) {
    obj.screen = me._convert3Dto2D(obj.point);
  });
  bottom.forEach(function (obj) {
    obj.screen = me._convert3Dto2D(obj.point);
  });

  // create five sides, calculate both corner points and center points
  var surfaces = [{ corners: top, center: Point3d.avg(bottom[0].point, bottom[2].point) }, { corners: [top[0], top[1], bottom[1], bottom[0]], center: Point3d.avg(bottom[1].point, bottom[0].point) }, { corners: [top[1], top[2], bottom[2], bottom[1]], center: Point3d.avg(bottom[2].point, bottom[1].point) }, { corners: [top[2], top[3], bottom[3], bottom[2]], center: Point3d.avg(bottom[3].point, bottom[2].point) }, { corners: [top[3], top[0], bottom[0], bottom[3]], center: Point3d.avg(bottom[0].point, bottom[3].point) }];
  point.surfaces = surfaces;

  // calculate the distance of each of the surface centers to the camera
  for (var j = 0; j < surfaces.length; j++) {
    surface = surfaces[j];
    var transCenter = this._convertPointToTranslation(surface.center);
    surface.dist = this.showPerspective ? transCenter.length() : -transCenter.z;
    // TODO: this dept calculation doesn't work 100% of the cases due to perspective,
    //     but the current solution is fast/simple and works in 99.9% of all cases
    //     the issue is visible in example 14, with graph.setCameraPosition({horizontal: 2.97, vertical: 0.5, distance: 0.9})
  }

  // order the surfaces by their (translated) depth
  surfaces.sort(function (a, b) {
    var diff = b.dist - a.dist;
    if (diff) return diff;

    // if equal depth, sort the top surface last
    if (a.corners === top) return 1;
    if (b.corners === top) return -1;

    // both are equal
    return 0;
  });

  // draw the ordered surfaces
  ctx.lineWidth = this._getStrokeWidth(point);
  ctx.strokeStyle = borderColor;
  ctx.fillStyle = color;
  // NOTE: we start at j=2 instead of j=0 as we don't need to draw the two surfaces at the backside
  for (var _j = 2; _j < surfaces.length; _j++) {
    surface = surfaces[_j];
    this._polygon(ctx, surface.corners);
  }
};

/**
 * Draw a polygon using the passed points and fill it with the passed style and stroke.
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {Array.<vis.Point3d>} points      an array of points.
 * @param {string} [fillStyle] the fill style to set
 * @param {string} [strokeStyle] the stroke style to set
 */
Graph3d.prototype._polygon = function (ctx, points, fillStyle, strokeStyle) {
  if (points.length < 2) {
    return;
  }

  if (fillStyle !== undefined) {
    ctx.fillStyle = fillStyle;
  }
  if (strokeStyle !== undefined) {
    ctx.strokeStyle = strokeStyle;
  }
  ctx.beginPath();
  ctx.moveTo(points[0].screen.x, points[0].screen.y);

  for (var i = 1; i < points.length; ++i) {
    var point = points[i];
    ctx.lineTo(point.screen.x, point.screen.y);
  }

  ctx.closePath();
  ctx.fill();
  ctx.stroke(); // TODO: only draw stroke when strokeWidth > 0
};

/**
 * @param {CanvasRenderingContext2D} ctx
 * @param {object} point
 * @param {string} color
 * @param {string} borderColor
 * @param {number} [size=this._dotSize()]
 * @private
 */
Graph3d.prototype._drawCircle = function (ctx, point, color, borderColor, size) {
  var radius = this._calcRadius(point, size);

  ctx.lineWidth = this._getStrokeWidth(point);
  ctx.strokeStyle = borderColor;
  ctx.fillStyle = color;
  ctx.beginPath();
  ctx.arc(point.screen.x, point.screen.y, radius, 0, Math.PI * 2, true);
  ctx.fill();
  ctx.stroke();
};

/**
 * Determine the colors for the 'regular' graph styles.
 *
 * @param {object} point
 * @returns {{fill, border}}
 * @private
 */
Graph3d.prototype._getColorsRegular = function (point) {
  // calculate Hue from the current value. At zMin the hue is 240, at zMax the hue is 0
  var hue = (1 - (point.point.z - this.zRange.min) * this.scale.z / this.verticalRatio) * 240;
  var color = this._hsv2rgb(hue, 1, 1);
  var borderColor = this._hsv2rgb(hue, 1, 0.8);

  return {
    fill: color,
    border: borderColor
  };
};

/**
 * Get the colors for the 'color' graph styles.
 * These styles are currently: 'bar-color' and 'dot-color'
 * Color may be set as a string representation of HTML color, like #ff00ff,
 * or calculated from a number, for example, distance from this point
 * The first option is useful when we have some pre-given legend, to which we have to adjust ourselves
 * The second option is useful when we are interested in automatically setting the color, from some value,
 * using some color scale
 * @param {object} point
 * @returns {{fill: *, border: *}}
 * @private
 */
Graph3d.prototype._getColorsColor = function (point) {
  // calculate the color based on the value
  var color, borderColor;

  if (typeof point.point.value === "string") {
    color = point.point.value;
    borderColor = point.point.value;
  } else {
    var hue = (1 - (point.point.value - this.valueRange.min) * this.scale.value) * 240;
    color = this._hsv2rgb(hue, 1, 1);
    borderColor = this._hsv2rgb(hue, 1, 0.8);
  }
  return {
    fill: color,
    border: borderColor
  };
};

/**
 * Get the colors for the 'size' graph styles.
 * These styles are currently: 'bar-size' and 'dot-size'
 *
 * @returns {{fill: *, border: (string|colorOptions.stroke|{string, undefined}|string|colorOptions.stroke|{string}|*)}}
 * @private
 */
Graph3d.prototype._getColorsSize = function () {
  return {
    fill: this.dataColor.fill,
    border: this.dataColor.stroke
  };
};

/**
 * Determine the size of a point on-screen, as determined by the
 * distance to the camera.
 *
 * @param {Object} point
 * @param {number} [size=this._dotSize()] the size that needs to be translated to screen coordinates.
 *             optional; if not passed, use the default point size.
 * @returns {number}
 * @private
 */
Graph3d.prototype._calcRadius = function (point, size) {
  if (size === undefined) {
    size = this._dotSize();
  }

  var radius;
  if (this.showPerspective) {
    radius = size / -point.trans.z;
  } else {
    radius = size * -(this.eye.z / this.camera.getArmLength());
  }
  if (radius < 0) {
    radius = 0;
  }

  return radius;
};

// -----------------------------------------------------------------------------
// Methods for drawing points per graph style.
// -----------------------------------------------------------------------------


/**
 * Draw single datapoint for graph style 'bar'.
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {Object} point
 * @private
 */
Graph3d.prototype._redrawBarGraphPoint = function (ctx, point) {
  var xWidth = this.xBarWidth / 2;
  var yWidth = this.yBarWidth / 2;
  var colors = this._getColorsRegular(point);

  this._redrawBar(ctx, point, xWidth, yWidth, colors.fill, colors.border);
};

/**
 * Draw single datapoint for graph style 'bar-color'.
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {Object} point
 * @private
 */
Graph3d.prototype._redrawBarColorGraphPoint = function (ctx, point) {
  var xWidth = this.xBarWidth / 2;
  var yWidth = this.yBarWidth / 2;
  var colors = this._getColorsColor(point);

  this._redrawBar(ctx, point, xWidth, yWidth, colors.fill, colors.border);
};

/**
 * Draw single datapoint for graph style 'bar-size'.
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {Object} point
 * @private
 */
Graph3d.prototype._redrawBarSizeGraphPoint = function (ctx, point) {
  // calculate size for the bar
  var fraction = (point.point.value - this.valueRange.min) / this.valueRange.range();
  var xWidth = this.xBarWidth / 2 * (fraction * 0.8 + 0.2);
  var yWidth = this.yBarWidth / 2 * (fraction * 0.8 + 0.2);

  var colors = this._getColorsSize();

  this._redrawBar(ctx, point, xWidth, yWidth, colors.fill, colors.border);
};

/**
 * Draw single datapoint for graph style 'dot'.
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {Object} point
 * @private
 */
Graph3d.prototype._redrawDotGraphPoint = function (ctx, point) {
  var colors = this._getColorsRegular(point);

  this._drawCircle(ctx, point, colors.fill, colors.border);
};

/**
 * Draw single datapoint for graph style 'dot-line'.
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {Object} point
 * @private
 */
Graph3d.prototype._redrawDotLineGraphPoint = function (ctx, point) {
  // draw a vertical line from the XY-plane to the graph value
  var from = this._convert3Dto2D(point.bottom);
  ctx.lineWidth = 1;
  this._line(ctx, from, point.screen, this.gridColor);

  this._redrawDotGraphPoint(ctx, point);
};

/**
 * Draw single datapoint for graph style 'dot-color'.
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {Object} point
 * @private
 */
Graph3d.prototype._redrawDotColorGraphPoint = function (ctx, point) {
  var colors = this._getColorsColor(point);

  this._drawCircle(ctx, point, colors.fill, colors.border);
};

/**
 * Draw single datapoint for graph style 'dot-size'.
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {Object} point
 * @private
 */
Graph3d.prototype._redrawDotSizeGraphPoint = function (ctx, point) {
  var dotSize = this._dotSize();
  var fraction = (point.point.value - this.valueRange.min) / this.valueRange.range();

  var sizeMin = dotSize * this.dotSizeMinFraction;
  var sizeRange = dotSize * this.dotSizeMaxFraction - sizeMin;
  var size = sizeMin + sizeRange * fraction;

  var colors = this._getColorsSize();

  this._drawCircle(ctx, point, colors.fill, colors.border, size);
};

/**
 * Draw single datapoint for graph style 'surface'.
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {Object} point
 * @private
 */
Graph3d.prototype._redrawSurfaceGraphPoint = function (ctx, point) {
  var right = point.pointRight;
  var top = point.pointTop;
  var cross = point.pointCross;

  if (point === undefined || right === undefined || top === undefined || cross === undefined) {
    return;
  }

  var topSideVisible = true;
  var fillStyle;
  var strokeStyle;

  if (this.showGrayBottom || this.showShadow) {
    // calculate the cross product of the two vectors from center
    // to left and right, in order to know whether we are looking at the
    // bottom or at the top side. We can also use the cross product
    // for calculating light intensity
    var aDiff = Point3d.subtract(cross.trans, point.trans);
    var bDiff = Point3d.subtract(top.trans, right.trans);
    var crossproduct = Point3d.crossProduct(aDiff, bDiff);
    var len = crossproduct.length();
    // FIXME: there is a bug with determining the surface side (shadow or colored)

    topSideVisible = crossproduct.z > 0;
  }

  if (topSideVisible) {

    // calculate Hue from the current value. At zMin the hue is 240, at zMax the hue is 0
    var zAvg = (point.point.z + right.point.z + top.point.z + cross.point.z) / 4;
    var h = (1 - (zAvg - this.zRange.min) * this.scale.z / this.verticalRatio) * 240;
    var s = 1; // saturation
    var v;

    if (this.showShadow) {
      v = Math.min(1 + crossproduct.x / len / 2, 1); // value. TODO: scale
      fillStyle = this._hsv2rgb(h, s, v);
      strokeStyle = fillStyle;
    } else {
      v = 1;
      fillStyle = this._hsv2rgb(h, s, v);
      strokeStyle = this.axisColor; // TODO: should be customizable
    }
  } else {
    fillStyle = 'gray';
    strokeStyle = this.axisColor;
  }

  ctx.lineWidth = this._getStrokeWidth(point);
  // TODO: only draw stroke when strokeWidth > 0

  var points = [point, right, cross, top];
  this._polygon(ctx, points, fillStyle, strokeStyle);
};

/**
 * Helper method for _redrawGridGraphPoint()
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {Object} from
 * @param {Object} to
 * @private
 */
Graph3d.prototype._drawGridLine = function (ctx, from, to) {
  if (from === undefined || to === undefined) {
    return;
  }

  // calculate Hue from the current value. At zMin the hue is 240, at zMax the hue is 0
  var zAvg = (from.point.z + to.point.z) / 2;
  var h = (1 - (zAvg - this.zRange.min) * this.scale.z / this.verticalRatio) * 240;

  ctx.lineWidth = this._getStrokeWidth(from) * 2;
  ctx.strokeStyle = this._hsv2rgb(h, 1, 1);
  this._line(ctx, from.screen, to.screen);
};

/**
 * Draw single datapoint for graph style 'Grid'.
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {Object} point
 * @private
 */
Graph3d.prototype._redrawGridGraphPoint = function (ctx, point) {
  this._drawGridLine(ctx, point, point.pointRight);
  this._drawGridLine(ctx, point, point.pointTop);
};

/**
 * Draw single datapoint for graph style 'line'.
 *
 * @param {CanvasRenderingContext2D} ctx
 * @param {Object} point
 * @private
 */
Graph3d.prototype._redrawLineGraphPoint = function (ctx, point) {
  if (point.pointNext === undefined) {
    return;
  }

  ctx.lineWidth = this._getStrokeWidth(point);
  ctx.strokeStyle = this.dataColor.stroke;

  this._line(ctx, point.screen, point.pointNext.screen);
};

/**
 * Draw all datapoints for currently selected graph style.
 *
 */
Graph3d.prototype._redrawDataGraph = function () {
  var ctx = this._getContext();
  var i;

  if (this.dataPoints === undefined || this.dataPoints.length <= 0) return; // TODO: throw exception?

  this._calcTranslations(this.dataPoints);

  for (i = 0; i < this.dataPoints.length; i++) {
    var point = this.dataPoints[i];

    // Using call() ensures that the correct context is used
    this._pointDrawingMethod.call(this, ctx, point);
  }
};

// -----------------------------------------------------------------------------
// End methods for drawing points per graph style.
// -----------------------------------------------------------------------------

/**
 * Store startX, startY and startOffset for mouse operations
 *
 * @param {Event}     event     The event that occurred
 */
Graph3d.prototype._storeMousePosition = function (event) {
  // get mouse position (different code for IE and all other browsers)
  this.startMouseX = getMouseX(event);
  this.startMouseY = getMouseY(event);

  this._startCameraOffset = this.camera.getOffset();
};

/**
 * Start a moving operation inside the provided parent element
 * @param {Event}     event     The event that occurred (required for
 *                  retrieving the  mouse position)
 */
Graph3d.prototype._onMouseDown = function (event) {
  event = event || window.event;

  // check if mouse is still down (may be up when focus is lost for example
  // in an iframe)
  if (this.leftButtonDown) {
    this._onMouseUp(event);
  }

  // only react on left mouse button down
  this.leftButtonDown = event.which ? event.which === 1 : event.button === 1;
  if (!this.leftButtonDown && !this.touchDown) return;

  this._storeMousePosition(event);

  this.startStart = new Date(this.start);
  this.startEnd = new Date(this.end);
  this.startArmRotation = this.camera.getArmRotation();

  this.frame.style.cursor = 'move';

  // add event listeners to handle moving the contents
  // we store the function onmousemove and onmouseup in the graph, so we can
  // remove the eventlisteners lateron in the function mouseUp()
  var me = this;
  this.onmousemove = function (event) {
    me._onMouseMove(event);
  };
  this.onmouseup = function (event) {
    me._onMouseUp(event);
  };
  util.addEventListener(document, 'mousemove', me.onmousemove);
  util.addEventListener(document, 'mouseup', me.onmouseup);
  util.preventDefault(event);
};

/**
 * Perform moving operating.
 * This function activated from within the funcion Graph.mouseDown().
 * @param {Event}   event  Well, eehh, the event
 */
Graph3d.prototype._onMouseMove = function (event) {
  this.moving = true;
  event = event || window.event;

  // calculate change in mouse position
  var diffX = parseFloat(getMouseX(event)) - this.startMouseX;
  var diffY = parseFloat(getMouseY(event)) - this.startMouseY;

  // move with ctrl or rotate by other
  if (event && event.ctrlKey === true) {
    // calculate change in mouse position
    var scaleX = this.frame.clientWidth * 0.5;
    var scaleY = this.frame.clientHeight * 0.5;

    var offXNew = (this._startCameraOffset.x || 0) - diffX / scaleX * this.camera.armLength * 0.8;
    var offYNew = (this._startCameraOffset.y || 0) + diffY / scaleY * this.camera.armLength * 0.8;

    this.camera.setOffset(offXNew, offYNew);
    this._storeMousePosition(event);
  } else {
    var horizontalNew = this.startArmRotation.horizontal + diffX / 200;
    var verticalNew = this.startArmRotation.vertical + diffY / 200;

    var snapAngle = 4; // degrees
    var snapValue = Math.sin(snapAngle / 360 * 2 * Math.PI);

    // snap horizontally to nice angles at 0pi, 0.5pi, 1pi, 1.5pi, etc...
    // the -0.001 is to take care that the vertical axis is always drawn at the left front corner
    if (Math.abs(Math.sin(horizontalNew)) < snapValue) {
      horizontalNew = Math.round(horizontalNew / Math.PI) * Math.PI - 0.001;
    }
    if (Math.abs(Math.cos(horizontalNew)) < snapValue) {
      horizontalNew = (Math.round(horizontalNew / Math.PI - 0.5) + 0.5) * Math.PI - 0.001;
    }

    // snap vertically to nice angles
    if (Math.abs(Math.sin(verticalNew)) < snapValue) {
      verticalNew = Math.round(verticalNew / Math.PI) * Math.PI;
    }
    if (Math.abs(Math.cos(verticalNew)) < snapValue) {
      verticalNew = (Math.round(verticalNew / Math.PI - 0.5) + 0.5) * Math.PI;
    }
    this.camera.setArmRotation(horizontalNew, verticalNew);
  }

  this.redraw();

  // fire a cameraPositionChange event
  var parameters = this.getCameraPosition();
  this.emit('cameraPositionChange', parameters);

  util.preventDefault(event);
};

/**
 * Stop moving operating.
 * This function activated from within the funcion Graph.mouseDown().
 * @param {Event}  event   The event
 */
Graph3d.prototype._onMouseUp = function (event) {
  this.frame.style.cursor = 'auto';
  this.leftButtonDown = false;

  // remove event listeners here
  util.removeEventListener(document, 'mousemove', this.onmousemove);
  util.removeEventListener(document, 'mouseup', this.onmouseup);
  util.preventDefault(event);
};

/**
 * @param {Event}  event   The event
 */
Graph3d.prototype._onClick = function (event) {
  if (!this.onclick_callback) return;
  if (!this.moving) {
    var boundingRect = this.frame.getBoundingClientRect();
    var mouseX = getMouseX(event) - boundingRect.left;
    var mouseY = getMouseY(event) - boundingRect.top;
    var dataPoint = this._dataPointFromXY(mouseX, mouseY);
    if (dataPoint) this.onclick_callback(dataPoint.point.data);
  } else {
    // disable onclick callback, if it came immediately after rotate/pan
    this.moving = false;
  }
  util.preventDefault(event);
};

/**
 * After having moved the mouse, a tooltip should pop up when the mouse is resting on a data point
 * @param {Event}  event   A mouse move event
 */
Graph3d.prototype._onTooltip = function (event) {
  var delay = 300; // ms
  var boundingRect = this.frame.getBoundingClientRect();
  var mouseX = getMouseX(event) - boundingRect.left;
  var mouseY = getMouseY(event) - boundingRect.top;

  if (!this.showTooltip) {
    return;
  }

  if (this.tooltipTimeout) {
    clearTimeout(this.tooltipTimeout);
  }

  // (delayed) display of a tooltip only if no mouse button is down
  if (this.leftButtonDown) {
    this._hideTooltip();
    return;
  }

  if (this.tooltip && this.tooltip.dataPoint) {
    // tooltip is currently visible
    var dataPoint = this._dataPointFromXY(mouseX, mouseY);
    if (dataPoint !== this.tooltip.dataPoint) {
      // datapoint changed
      if (dataPoint) {
        this._showTooltip(dataPoint);
      } else {
        this._hideTooltip();
      }
    }
  } else {
    // tooltip is currently not visible
    var me = this;
    this.tooltipTimeout = setTimeout(function () {
      me.tooltipTimeout = null;

      // show a tooltip if we have a data point
      var dataPoint = me._dataPointFromXY(mouseX, mouseY);
      if (dataPoint) {
        me._showTooltip(dataPoint);
      }
    }, delay);
  }
};

/**
 * Event handler for touchstart event on mobile devices
 * @param {Event}  event   The event
 */
Graph3d.prototype._onTouchStart = function (event) {
  this.touchDown = true;

  var me = this;
  this.ontouchmove = function (event) {
    me._onTouchMove(event);
  };
  this.ontouchend = function (event) {
    me._onTouchEnd(event);
  };
  util.addEventListener(document, 'touchmove', me.ontouchmove);
  util.addEventListener(document, 'touchend', me.ontouchend);

  this._onMouseDown(event);
};

/**
 * Event handler for touchmove event on mobile devices
 * @param {Event}  event   The event
 */
Graph3d.prototype._onTouchMove = function (event) {
  this._onMouseMove(event);
};

/**
 * Event handler for touchend event on mobile devices
 * @param {Event}  event   The event
 */
Graph3d.prototype._onTouchEnd = function (event) {
  this.touchDown = false;

  util.removeEventListener(document, 'touchmove', this.ontouchmove);
  util.removeEventListener(document, 'touchend', this.ontouchend);

  this._onMouseUp(event);
};

/**
 * Event handler for mouse wheel event, used to zoom the graph
 * Code from http://adomas.org/javascript-mouse-wheel/
 * @param {Event}  event   The event
 */
Graph3d.prototype._onWheel = function (event) {
  if (!event) /* For IE. */
    event = window.event;

  // retrieve delta
  var delta = 0;
  if (event.wheelDelta) {
    /* IE/Opera. */
    delta = event.wheelDelta / 120;
  } else if (event.detail) {
    /* Mozilla case. */
    // In Mozilla, sign of delta is different than in IE.
    // Also, delta is multiple of 3.
    delta = -event.detail / 3;
  }

  // If delta is nonzero, handle it.
  // Basically, delta is now positive if wheel was scrolled up,
  // and negative, if wheel was scrolled down.
  if (delta) {
    var oldLength = this.camera.getArmLength();
    var newLength = oldLength * (1 - delta / 10);

    this.camera.setArmLength(newLength);
    this.redraw();

    this._hideTooltip();
  }

  // fire a cameraPositionChange event
  var parameters = this.getCameraPosition();
  this.emit('cameraPositionChange', parameters);

  // Prevent default actions caused by mouse wheel.
  // That might be ugly, but we handle scrolls somehow
  // anyway, so don't bother here..
  util.preventDefault(event);
};

/**
 * Test whether a point lies inside given 2D triangle
 *
 * @param   {vis.Point2d}   point
 * @param   {vis.Point2d[]} triangle
 * @returns {boolean}   true if given point lies inside or on the edge of the
 *                      triangle, false otherwise
 * @private
 */
Graph3d.prototype._insideTriangle = function (point, triangle) {
  var a = triangle[0],
      b = triangle[1],
      c = triangle[2];

  /**
   *
   * @param {number} x
   * @returns {number}
   */
  function sign(x) {
    return x > 0 ? 1 : x < 0 ? -1 : 0;
  }

  var as = sign((b.x - a.x) * (point.y - a.y) - (b.y - a.y) * (point.x - a.x));
  var bs = sign((c.x - b.x) * (point.y - b.y) - (c.y - b.y) * (point.x - b.x));
  var cs = sign((a.x - c.x) * (point.y - c.y) - (a.y - c.y) * (point.x - c.x));

  // each of the three signs must be either equal to each other or zero
  return (as == 0 || bs == 0 || as == bs) && (bs == 0 || cs == 0 || bs == cs) && (as == 0 || cs == 0 || as == cs);
};

/**
 * Find a data point close to given screen position (x, y)
 *
 * @param   {number} x
 * @param   {number} y
 * @returns {Object | null} The closest data point or null if not close to any
 *                          data point
 * @private
 */
Graph3d.prototype._dataPointFromXY = function (x, y) {
  var i,
      distMax = 100,
      // px
  dataPoint = null,
      closestDataPoint = null,
      closestDist = null,
      center = new Point2d(x, y);

  if (this.style === Graph3d.STYLE.BAR || this.style === Graph3d.STYLE.BARCOLOR || this.style === Graph3d.STYLE.BARSIZE) {
    // the data points are ordered from far away to closest
    for (i = this.dataPoints.length - 1; i >= 0; i--) {
      dataPoint = this.dataPoints[i];
      var surfaces = dataPoint.surfaces;
      if (surfaces) {
        for (var s = surfaces.length - 1; s >= 0; s--) {
          // split each surface in two triangles, and see if the center point is inside one of these
          var surface = surfaces[s];
          var corners = surface.corners;
          var triangle1 = [corners[0].screen, corners[1].screen, corners[2].screen];
          var triangle2 = [corners[2].screen, corners[3].screen, corners[0].screen];
          if (this._insideTriangle(center, triangle1) || this._insideTriangle(center, triangle2)) {
            // return immediately at the first hit
            return dataPoint;
          }
        }
      }
    }
  } else {
    // find the closest data point, using distance to the center of the point on 2d screen
    for (i = 0; i < this.dataPoints.length; i++) {
      dataPoint = this.dataPoints[i];
      var point = dataPoint.screen;
      if (point) {
        var distX = Math.abs(x - point.x);
        var distY = Math.abs(y - point.y);
        var dist = Math.sqrt(distX * distX + distY * distY);

        if ((closestDist === null || dist < closestDist) && dist < distMax) {
          closestDist = dist;
          closestDataPoint = dataPoint;
        }
      }
    }
  }

  return closestDataPoint;
};

/**
 * Determine if the given style has bars
 *
 * @param   {number} style the style to check
 * @returns {boolean} true if bar style, false otherwise
 */
Graph3d.prototype.hasBars = function (style) {
  return style == Graph3d.STYLE.BAR || style == Graph3d.STYLE.BARCOLOR || style == Graph3d.STYLE.BARSIZE;
};

/**
 * Display a tooltip for given data point
 * @param {Object} dataPoint
 * @private
 */
Graph3d.prototype._showTooltip = function (dataPoint) {
  var content, line, dot;

  if (!this.tooltip) {
    content = document.createElement('div');
    (0, _assign2['default'])(content.style, {}, this.tooltipStyle.content);
    content.style.position = 'absolute';

    line = document.createElement('div');
    (0, _assign2['default'])(line.style, {}, this.tooltipStyle.line);
    line.style.position = 'absolute';

    dot = document.createElement('div');
    (0, _assign2['default'])(dot.style, {}, this.tooltipStyle.dot);
    dot.style.position = 'absolute';

    this.tooltip = {
      dataPoint: null,
      dom: {
        content: content,
        line: line,
        dot: dot
      }
    };
  } else {
    content = this.tooltip.dom.content;
    line = this.tooltip.dom.line;
    dot = this.tooltip.dom.dot;
  }

  this._hideTooltip();

  this.tooltip.dataPoint = dataPoint;
  if (typeof this.showTooltip === 'function') {
    content.innerHTML = this.showTooltip(dataPoint.point);
  } else {
    content.innerHTML = '<table>' + '<tr><td>' + this.xLabel + ':</td><td>' + dataPoint.point.x + '</td></tr>' + '<tr><td>' + this.yLabel + ':</td><td>' + dataPoint.point.y + '</td></tr>' + '<tr><td>' + this.zLabel + ':</td><td>' + dataPoint.point.z + '</td></tr>' + '</table>';
  }

  content.style.left = '0';
  content.style.top = '0';
  this.frame.appendChild(content);
  this.frame.appendChild(line);
  this.frame.appendChild(dot);

  // calculate sizes
  var contentWidth = content.offsetWidth;
  var contentHeight = content.offsetHeight;
  var lineHeight = line.offsetHeight;
  var dotWidth = dot.offsetWidth;
  var dotHeight = dot.offsetHeight;

  var left = dataPoint.screen.x - contentWidth / 2;
  left = Math.min(Math.max(left, 10), this.frame.clientWidth - 10 - contentWidth);

  line.style.left = dataPoint.screen.x + 'px';
  line.style.top = dataPoint.screen.y - lineHeight + 'px';
  content.style.left = left + 'px';
  content.style.top = dataPoint.screen.y - lineHeight - contentHeight + 'px';
  dot.style.left = dataPoint.screen.x - dotWidth / 2 + 'px';
  dot.style.top = dataPoint.screen.y - dotHeight / 2 + 'px';
};

/**
 * Hide the tooltip when displayed
 * @private
 */
Graph3d.prototype._hideTooltip = function () {
  if (this.tooltip) {
    this.tooltip.dataPoint = null;

    for (var prop in this.tooltip.dom) {
      if (this.tooltip.dom.hasOwnProperty(prop)) {
        var elem = this.tooltip.dom[prop];
        if (elem && elem.parentNode) {
          elem.parentNode.removeChild(elem);
        }
      }
    }
  }
};

/**--------------------------------------------------------------------------**/

/**
 * Get the horizontal mouse position from a mouse event
 *
 * @param   {Event}  event
 * @returns {number} mouse x
 */
function getMouseX(event) {
  if ('clientX' in event) return event.clientX;
  return event.targetTouches[0] && event.targetTouches[0].clientX || 0;
}

/**
 * Get the vertical mouse position from a mouse event
 *
 * @param   {Event}  event
 * @returns {number} mouse y
 */
function getMouseY(event) {
  if ('clientY' in event) return event.clientY;
  return event.targetTouches[0] && event.targetTouches[0].clientY || 0;
}

// -----------------------------------------------------------------------------
//  Public methods for specific settings
// -----------------------------------------------------------------------------

/**
 * Set the rotation and distance of the camera
 *
 * @param {Object}  pos            An object with the camera position
 * @param {number} [pos.horizontal] The horizontal rotation, between 0 and 2*PI.
 *                                 Optional, can be left undefined.
 * @param {number} [pos.vertical]  The vertical rotation, between 0 and 0.5*PI.
 *                                 if vertical=0.5*PI, the graph is shown from
 *                                 the top. Optional, can be left undefined.
 * @param {number} [pos.distance]  The (normalized) distance of the camera to the
 *                                 center of the graph, a value between 0.71 and
 *                                 5.0. Optional, can be left undefined.
 */
Graph3d.prototype.setCameraPosition = function (pos) {
  Settings.setCameraPosition(pos, this);
  this.redraw();
};

/**
 * Set a new size for the graph
 *
 * @param {string} width  Width in pixels or percentage (for example '800px'
 *                        or '50%')
 * @param {string} height Height in pixels or percentage  (for example '400px'
 *                        or '30%')
 */
Graph3d.prototype.setSize = function (width, height) {
  this._setSize(width, height);
  this.redraw();
};

// -----------------------------------------------------------------------------
//  End public methods for specific settings
// -----------------------------------------------------------------------------


module.exports = Graph3d;

/***/ }),
/* 162 */
/***/ (function(module, exports, __webpack_require__) {

__webpack_require__(163);
module.exports = __webpack_require__(7).Object.assign;


/***/ }),
/* 163 */
/***/ (function(module, exports, __webpack_require__) {

// 19.1.3.1 Object.assign(target, source)
var $export = __webpack_require__(17);

$export($export.S + $export.F, 'Object', { assign: __webpack_require__(164) });


/***/ }),
/* 164 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

// 19.1.2.1 Object.assign(target, source, ...)
var getKeys = __webpack_require__(33);
var gOPS = __webpack_require__(63);
var pIE = __webpack_require__(42);
var toObject = __webpack_require__(41);
var IObject = __webpack_require__(78);
var $assign = Object.assign;

// should work with symbols and should have deterministic property order (V8 bug)
module.exports = !$assign || __webpack_require__(28)(function () {
  var A = {};
  var B = {};
  // eslint-disable-next-line no-undef
  var S = Symbol();
  var K = 'abcdefghijklmnopqrst';
  A[S] = 7;
  K.split('').forEach(function (k) { B[k] = k; });
  return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
}) ? function assign(target, source) { // eslint-disable-line no-unused-vars
  var T = toObject(target);
  var aLen = arguments.length;
  var index = 1;
  var getSymbols = gOPS.f;
  var isEnum = pIE.f;
  while (aLen > index) {
    var S = IObject(arguments[index++]);
    var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);
    var length = keys.length;
    var j = 0;
    var key;
    while (length > j) if (isEnum.call(S, key = keys[j++])) T[key] = S[key];
  } return T;
} : $assign;


/***/ }),
/* 165 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = { "default": __webpack_require__(166), __esModule: true };

/***/ }),
/* 166 */
/***/ (function(module, exports, __webpack_require__) {

__webpack_require__(167);
module.exports = __webpack_require__(7).Math.sign;


/***/ }),
/* 167 */
/***/ (function(module, exports, __webpack_require__) {

// 20.2.2.28 Math.sign(x)
var $export = __webpack_require__(17);

$export($export.S, 'Math', { sign: __webpack_require__(168) });


/***/ }),
/* 168 */
/***/ (function(module, exports) {

// 20.2.2.28 Math.sign(x)
module.exports = Math.sign || function sign(x) {
  // eslint-disable-next-line no-self-compare
  return (x = +x) == 0 || x != x ? x : x < 0 ? -1 : 1;
};


/***/ }),
/* 169 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = { "default": __webpack_require__(170), __esModule: true };

/***/ }),
/* 170 */
/***/ (function(module, exports, __webpack_require__) {

__webpack_require__(171);
var $Object = __webpack_require__(7).Object;
module.exports = function defineProperty(it, key, desc) {
  return $Object.defineProperty(it, key, desc);
};


/***/ }),
/* 171 */
/***/ (function(module, exports, __webpack_require__) {

var $export = __webpack_require__(17);
// 19.1.2.4 / 15.2.3.6 Object.defineProperty(O, P, Attributes)
$export($export.S + $export.F * !__webpack_require__(21), 'Object', { defineProperty: __webpack_require__(20).f });


/***/ }),
/* 172 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
/**
 * This object contains all possible options. It will check if the types are correct, if required if the option is one
 * of the allowed values.
 *
 * __any__ means that the name of the property does not matter.
 * __type__ is a required field for all objects and contains the allowed types of all objects
 */
var string = 'string';
var bool = 'boolean';
var number = 'number';
var object = 'object'; // should only be in a __type__ property
// Following not used here, but useful for reference
//let array    = 'array';
//let dom      = 'dom';
//let any      = 'any';


var colorOptions = {
  fill: { string: string },
  stroke: { string: string },
  strokeWidth: { number: number },
  __type__: { string: string, object: object, 'undefined': 'undefined' }
};

/**
 * Order attempted to be alphabetical.
 *   - x/y/z-prefixes ignored in sorting
 *   - __type__ always at end
 *   - globals at end
 */
var allOptions = {
  animationAutoStart: { boolean: bool, 'undefined': 'undefined' },
  animationInterval: { number: number },
  animationPreload: { boolean: bool },
  axisColor: { string: string },
  backgroundColor: colorOptions,
  xBarWidth: { number: number, 'undefined': 'undefined' },
  yBarWidth: { number: number, 'undefined': 'undefined' },
  cameraPosition: {
    distance: { number: number },
    horizontal: { number: number },
    vertical: { number: number },
    __type__: { object: object }
  },
  xCenter: { string: string },
  yCenter: { string: string },
  dataColor: colorOptions,
  dotSizeMinFraction: { number: number },
  dotSizeMaxFraction: { number: number },
  dotSizeRatio: { number: number },
  filterLabel: { string: string },
  gridColor: { string: string },
  onclick: { 'function': 'function' },
  keepAspectRatio: { boolean: bool },
  xLabel: { string: string },
  yLabel: { string: string },
  zLabel: { string: string },
  legendLabel: { string: string },
  xMin: { number: number, 'undefined': 'undefined' },
  yMin: { number: number, 'undefined': 'undefined' },
  zMin: { number: number, 'undefined': 'undefined' },
  xMax: { number: number, 'undefined': 'undefined' },
  yMax: { number: number, 'undefined': 'undefined' },
  zMax: { number: number, 'undefined': 'undefined' },
  showAnimationControls: { boolean: bool, 'undefined': 'undefined' },
  showGrid: { boolean: bool },
  showLegend: { boolean: bool, 'undefined': 'undefined' },
  showPerspective: { boolean: bool },
  showShadow: { boolean: bool },
  showXAxis: { boolean: bool },
  showYAxis: { boolean: bool },
  showZAxis: { boolean: bool },
  xStep: { number: number, 'undefined': 'undefined' },
  yStep: { number: number, 'undefined': 'undefined' },
  zStep: { number: number, 'undefined': 'undefined' },
  style: {
    number: number, // TODO: either Graph3d.DEFAULT has string, or number allowed in documentation
    string: ['bar', 'bar-color', 'bar-size', 'dot', 'dot-line', 'dot-color', 'dot-size', 'line', 'grid', 'surface']
  },
  tooltip: { boolean: bool, 'function': 'function' },
  tooltipStyle: {
    content: {
      color: { string: string },
      background: { string: string },
      border: { string: string },
      borderRadius: { string: string },
      boxShadow: { string: string },
      padding: { string: string },
      __type__: { object: object }
    },
    line: {
      borderLeft: { string: string },
      height: { string: string },
      width: { string: string },
      __type__: { object: object }
    },
    dot: {
      border: { string: string },
      borderRadius: { string: string },
      height: { string: string },
      width: { string: string },
      __type__: { object: object }
    },
    __type__: { object: object }
  },
  xValueLabel: { 'function': 'function' },
  yValueLabel: { 'function': 'function' },
  zValueLabel: { 'function': 'function' },
  valueMax: { number: number, 'undefined': 'undefined' },
  valueMin: { number: number, 'undefined': 'undefined' },
  verticalRatio: { number: number },

  //globals :
  height: { string: string },
  width: { string: string },
  __type__: { object: object }
};

exports.allOptions = allOptions;

/***/ }),
/* 173 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var DataSet = __webpack_require__(11);
var DataView = __webpack_require__(12);
var Range = __webpack_require__(174);
var Filter = __webpack_require__(96);
var Settings = __webpack_require__(94);
var Point3d = __webpack_require__(34);

/**
 * Creates a container for all data of one specific 3D-graph.
 *
 * On construction, the container is totally empty; the data
 * needs to be initialized with method initializeData().
 * Failure to do so will result in the following exception begin thrown
 * on instantiation of Graph3D:
 *
 *     Error: Array, DataSet, or DataView expected
 *
 * @constructor DataGroup
 */
function DataGroup() {
  this.dataTable = null; // The original data table
}

/**
 * Initializes the instance from the passed data.
 *
 * Calculates minimum and maximum values and column index values.
 *
 * The graph3d instance is used internally to access the settings for
 * the given instance.
 * TODO: Pass settings only instead.
 *
 * @param {vis.Graph3d}  graph3d Reference to the calling Graph3D instance.
 * @param {Array | DataSet | DataView} rawData The data containing the items for
 *                                             the Graph.
 * @param {number}   style   Style Number
 * @returns {Array.<Object>}
 */
DataGroup.prototype.initializeData = function (graph3d, rawData, style) {
  if (rawData === undefined) return;

  if (Array.isArray(rawData)) {
    rawData = new DataSet(rawData);
  }

  var data;
  if (rawData instanceof DataSet || rawData instanceof DataView) {
    data = rawData.get();
  } else {
    throw new Error('Array, DataSet, or DataView expected');
  }

  if (data.length == 0) return;

  this.style = style;

  // unsubscribe from the dataTable
  if (this.dataSet) {
    this.dataSet.off('*', this._onChange);
  }

  this.dataSet = rawData;
  this.dataTable = data;

  // subscribe to changes in the dataset
  var me = this;
  this._onChange = function () {
    graph3d.setData(me.dataSet);
  };
  this.dataSet.on('*', this._onChange);

  // determine the location of x,y,z,value,filter columns
  this.colX = 'x';
  this.colY = 'y';
  this.colZ = 'z';

  var withBars = graph3d.hasBars(style);

  // determine barWidth from data
  if (withBars) {
    if (graph3d.defaultXBarWidth !== undefined) {
      this.xBarWidth = graph3d.defaultXBarWidth;
    } else {
      this.xBarWidth = this.getSmallestDifference(data, this.colX) || 1;
    }

    if (graph3d.defaultYBarWidth !== undefined) {
      this.yBarWidth = graph3d.defaultYBarWidth;
    } else {
      this.yBarWidth = this.getSmallestDifference(data, this.colY) || 1;
    }
  }

  // calculate minima and maxima
  this._initializeRange(data, this.colX, graph3d, withBars);
  this._initializeRange(data, this.colY, graph3d, withBars);
  this._initializeRange(data, this.colZ, graph3d, false);

  if (data[0].hasOwnProperty('style')) {
    this.colValue = 'style';
    var valueRange = this.getColumnRange(data, this.colValue);
    this._setRangeDefaults(valueRange, graph3d.defaultValueMin, graph3d.defaultValueMax);
    this.valueRange = valueRange;
  }

  // Initialize data filter if a filter column is provided
  var table = this.getDataTable();
  if (table[0].hasOwnProperty('filter')) {
    if (this.dataFilter === undefined) {
      this.dataFilter = new Filter(this, 'filter', graph3d);
      this.dataFilter.setOnLoadCallback(function () {
        graph3d.redraw();
      });
    }
  }

  var dataPoints;
  if (this.dataFilter) {
    // apply filtering
    dataPoints = this.dataFilter._getDataPoints();
  } else {
    // no filtering. load all data
    dataPoints = this._getDataPoints(this.getDataTable());
  }
  return dataPoints;
};

/**
 * Collect the range settings for the given data column.
 *
 * This internal method is intended to make the range 
 * initalization more generic.
 *
 * TODO: if/when combined settings per axis defined, get rid of this.
 *
 * @private
 *
 * @param {'x'|'y'|'z'} column  The data column to process
 * @param {vis.Graph3d} graph3d Reference to the calling Graph3D instance;
 *                              required for access to settings
 * @returns {Object}
 */
DataGroup.prototype._collectRangeSettings = function (column, graph3d) {
  var index = ['x', 'y', 'z'].indexOf(column);

  if (index == -1) {
    throw new Error('Column \'' + column + '\' invalid');
  }

  var upper = column.toUpperCase();

  return {
    barWidth: this[column + 'BarWidth'],
    min: graph3d['default' + upper + 'Min'],
    max: graph3d['default' + upper + 'Max'],
    step: graph3d['default' + upper + 'Step'],
    range_label: column + 'Range', // Name of instance field to write to
    step_label: column + 'Step' // Name of instance field to write to
  };
};

/**
 * Initializes the settings per given column.
 *
 * TODO: if/when combined settings per axis defined, rewrite this.
 *
 * @private
 *
 * @param {DataSet | DataView} data     The data containing the items for the Graph
 * @param {'x'|'y'|'z'}        column   The data column to process
 * @param {vis.Graph3d}        graph3d  Reference to the calling Graph3D instance;
 *                                      required for access to settings
 * @param {boolean}            withBars True if initializing for bar graph
 */
DataGroup.prototype._initializeRange = function (data, column, graph3d, withBars) {
  var NUMSTEPS = 5;
  var settings = this._collectRangeSettings(column, graph3d);

  var range = this.getColumnRange(data, column);
  if (withBars && column != 'z') {
    // Safeguard for 'z'; it doesn't have a bar width
    range.expand(settings.barWidth / 2);
  }

  this._setRangeDefaults(range, settings.min, settings.max);
  this[settings.range_label] = range;
  this[settings.step_label] = settings.step !== undefined ? settings.step : range.range() / NUMSTEPS;
};

/**
 * Creates a list with all the different values in the data for the given column.
 *
 * If no data passed, use the internal data of this instance.
 *
 * @param {'x'|'y'|'z'}                column The data column to process
 * @param {DataSet|DataView|undefined} data   The data containing the items for the Graph
 *
 * @returns {Array} All distinct values in the given column data, sorted ascending.
 */
DataGroup.prototype.getDistinctValues = function (column, data) {
  if (data === undefined) {
    data = this.dataTable;
  }

  var values = [];

  for (var i = 0; i < data.length; i++) {
    var value = data[i][column] || 0;
    if (values.indexOf(value) === -1) {
      values.push(value);
    }
  }

  return values.sort(function (a, b) {
    return a - b;
  });
};

/**
 * Determine the smallest difference between the values for given
 * column in the passed data set.
 *
 * @param {DataSet|DataView|undefined} data   The data containing the items for the Graph
 * @param {'x'|'y'|'z'}                column The data column to process
 *
 * @returns {number|null} Smallest difference value or
 *                        null, if it can't be determined.
 */
DataGroup.prototype.getSmallestDifference = function (data, column) {
  var values = this.getDistinctValues(data, column);

  // Get all the distinct diffs
  // Array values is assumed to be sorted here
  var smallest_diff = null;

  for (var i = 1; i < values.length; i++) {
    var diff = values[i] - values[i - 1];

    if (smallest_diff == null || smallest_diff > diff) {
      smallest_diff = diff;
    }
  }

  return smallest_diff;
};

/**
 * Get the absolute min/max values for the passed data column.
 *
 * @param {DataSet|DataView|undefined} data   The data containing the items for the Graph
 * @param {'x'|'y'|'z'}                column The data column to process
 *
 * @returns {Range} A Range instance with min/max members properly set.
 */
DataGroup.prototype.getColumnRange = function (data, column) {
  var range = new Range();

  // Adjust the range so that it covers all values in the passed data elements.
  for (var i = 0; i < data.length; i++) {
    var item = data[i][column];
    range.adjust(item);
  }

  return range;
};

/**
 * Determines the number of rows in the current data.
 *
 * @returns {number}
 */
DataGroup.prototype.getNumberOfRows = function () {
  return this.dataTable.length;
};

/**
 * Set default values for range
 *
 * The default values override the range values, if defined.
 *
 * Because it's possible that only defaultMin or defaultMax is set, it's better
 * to pass in a range already set with the min/max set from the data. Otherwise,
 * it's quite hard to process the min/max properly.
 *
 * @param {vis.Range} range
 * @param {number} [defaultMin=range.min]
 * @param {number} [defaultMax=range.max]
 * @private
 */
DataGroup.prototype._setRangeDefaults = function (range, defaultMin, defaultMax) {
  if (defaultMin !== undefined) {
    range.min = defaultMin;
  }

  if (defaultMax !== undefined) {
    range.max = defaultMax;
  }

  // This is the original way that the default min/max values were adjusted.
  // TODO: Perhaps it's better if an error is thrown if the values do not agree.
  //       But this will change the behaviour.
  if (range.max <= range.min) range.max = range.min + 1;
};

DataGroup.prototype.getDataTable = function () {
  return this.dataTable;
};

DataGroup.prototype.getDataSet = function () {
  return this.dataSet;
};

/**
 * Return all data values as a list of Point3d objects
 * @param {Array.<Object>} data
 * @returns {Array.<Object>}
 */
DataGroup.prototype.getDataPoints = function (data) {
  var dataPoints = [];

  for (var i = 0; i < data.length; i++) {
    var point = new Point3d();
    point.x = data[i][this.colX] || 0;
    point.y = data[i][this.colY] || 0;
    point.z = data[i][this.colZ] || 0;
    point.data = data[i];

    if (this.colValue !== undefined) {
      point.value = data[i][this.colValue] || 0;
    }

    var obj = {};
    obj.point = point;
    obj.bottom = new Point3d(point.x, point.y, this.zRange.min);
    obj.trans = undefined;
    obj.screen = undefined;

    dataPoints.push(obj);
  }

  return dataPoints;
};

/**
 * Copy all values from the data table to a matrix.
 *
 * The provided values are supposed to form a grid of (x,y) positions.
 * @param {Array.<Object>} data
 * @returns {Array.<Object>}
 * @private
 */
DataGroup.prototype.initDataAsMatrix = function (data) {
  // TODO: store the created matrix dataPoints in the filters instead of
  //       reloading each time.
  var x, y, i, obj;

  // create two lists with all present x and y values
  var dataX = this.getDistinctValues(this.colX, data);
  var dataY = this.getDistinctValues(this.colY, data);

  var dataPoints = this.getDataPoints(data);

  // create a grid, a 2d matrix, with all values.
  var dataMatrix = []; // temporary data matrix
  for (i = 0; i < dataPoints.length; i++) {
    obj = dataPoints[i];

    // TODO: implement Array().indexOf() for Internet Explorer
    var xIndex = dataX.indexOf(obj.point.x);
    var yIndex = dataY.indexOf(obj.point.y);

    if (dataMatrix[xIndex] === undefined) {
      dataMatrix[xIndex] = [];
    }

    dataMatrix[xIndex][yIndex] = obj;
  }

  // fill in the pointers to the neighbors.
  for (x = 0; x < dataMatrix.length; x++) {
    for (y = 0; y < dataMatrix[x].length; y++) {
      if (dataMatrix[x][y]) {
        dataMatrix[x][y].pointRight = x < dataMatrix.length - 1 ? dataMatrix[x + 1][y] : undefined;
        dataMatrix[x][y].pointTop = y < dataMatrix[x].length - 1 ? dataMatrix[x][y + 1] : undefined;
        dataMatrix[x][y].pointCross = x < dataMatrix.length - 1 && y < dataMatrix[x].length - 1 ? dataMatrix[x + 1][y + 1] : undefined;
      }
    }
  }

  return dataPoints;
};

/**
 * Return common information, if present
 *
 * @returns {string}
 */
DataGroup.prototype.getInfo = function () {
  var dataFilter = this.dataFilter;
  if (!dataFilter) return undefined;

  return dataFilter.getLabel() + ': ' + dataFilter.getSelectedValue();
};

/**
 * Reload the data
 */
DataGroup.prototype.reload = function () {
  if (this.dataTable) {
    this.setData(this.dataTable);
  }
};

/**
 * Filter the data based on the current filter
 *
 * @param   {Array} data
 * @returns {Array} dataPoints Array with point objects which can be drawn on
 *                             screen
 */
DataGroup.prototype._getDataPoints = function (data) {
  var dataPoints = [];

  if (this.style === Settings.STYLE.GRID || this.style === Settings.STYLE.SURFACE) {
    dataPoints = this.initDataAsMatrix(data);
  } else {
    // 'dot', 'dot-line', etc.
    this._checkValueField(data);
    dataPoints = this.getDataPoints(data);

    if (this.style === Settings.STYLE.LINE) {
      // Add next member points for line drawing
      for (var i = 0; i < dataPoints.length; i++) {
        if (i > 0) {
          dataPoints[i - 1].pointNext = dataPoints[i];
        }
      }
    }
  }

  return dataPoints;
};

/**
 * Check if the state is consistent for the use of the value field.
 *
 * Throws if a problem is detected.
 *
 * @param {Array.<Object>} data
 * @private
 */
DataGroup.prototype._checkValueField = function (data) {

  var hasValueField = this.style === Settings.STYLE.BARCOLOR || this.style === Settings.STYLE.BARSIZE || this.style === Settings.STYLE.DOTCOLOR || this.style === Settings.STYLE.DOTSIZE;

  if (!hasValueField) {
    return; // No need to check further
  }

  // Following field must be present for the current graph style
  if (this.colValue === undefined) {
    throw new Error('Expected data to have ' + ' field \'style\' ' + ' for graph style \'' + this.style + '\'');
  }

  // The data must also contain this field.
  // Note that only first data element is checked.
  if (data[0][this.colValue] === undefined) {
    throw new Error('Expected data to have ' + ' field \'' + this.colValue + '\' ' + ' for graph style \'' + this.style + '\'');
  }
};

module.exports = DataGroup;

/***/ }),
/* 174 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * @prototype Range
 *
 * Helper class to make working with related min and max values easier.
 *
 * The range is inclusive; a given value is considered part of the range if:
 *
 *    this.min <= value <= this.max
 */
function Range() {
  this.min = undefined;
  this.max = undefined;
}

/**
 * Adjust the range so that the passed value fits in it.
 *
 * If the value is outside of the current extremes, adjust
 * the min or max so that the value is within the range.
 *
 * @param {number} value Numeric value to fit in range
 */
Range.prototype.adjust = function (value) {
  if (value === undefined) return;

  if (this.min === undefined || this.min > value) {
    this.min = value;
  }

  if (this.max === undefined || this.max < value) {
    this.max = value;
  }
};

/**
 * Adjust the current range so that the passed range fits in it.
 *
 * @param {Range} range Range instance to fit in current instance
 */
Range.prototype.combine = function (range) {
  this.add(range.min);
  this.add(range.max);
};

/**
 * Expand the range by the given value
 *
 * min will be lowered by given value;
 * max will be raised by given value
 *
 * Shrinking by passing a negative value is allowed.
 *
 * @param {number} val Amount by which to expand or shrink current range with
 */
Range.prototype.expand = function (val) {
  if (val === undefined) {
    return;
  }

  var newMin = this.min - val;
  var newMax = this.max + val;

  // Note that following allows newMin === newMax.
  // This should be OK, since method expand() allows this also.
  if (newMin > newMax) {
    throw new Error('Passed expansion value makes range invalid');
  }

  this.min = newMin;
  this.max = newMax;
};

/**
 * Determine the full range width of current instance.
 *
 * @returns {num} The calculated width of this range
 */
Range.prototype.range = function () {
  return this.max - this.min;
};

/**
 * Determine the central point of current instance.
 *
 * @returns {number} the value in the middle of min and max
 */
Range.prototype.center = function () {
  return (this.min + this.max) / 2;
};

module.exports = Range;

/***/ }),
/* 175 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;

(function (factory) {
  if (true) {
    // AMD. Register as an anonymous module.
    !(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_FACTORY__ = (factory),
				__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?
				(__WEBPACK_AMD_DEFINE_FACTORY__.apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__)) : __WEBPACK_AMD_DEFINE_FACTORY__),
				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
  } else if (typeof exports === 'object') {
    // Node. Does not work with strict CommonJS, but
    // only CommonJS-like environments that support module.exports,
    // like Node.
    module.exports = factory();
  } else {
    // Browser globals (root is window)
    window.propagating = factory();
  }
}(function () {
  var _firstTarget = null; // singleton, will contain the target element where the touch event started

  /**
   * Extend an Hammer.js instance with event propagation.
   *
   * Features:
   * - Events emitted by hammer will propagate in order from child to parent
   *   elements.
   * - Events are extended with a function `event.stopPropagation()` to stop
   *   propagation to parent elements.
   * - An option `preventDefault` to stop all default browser behavior.
   *
   * Usage:
   *   var hammer = propagatingHammer(new Hammer(element));
   *   var hammer = propagatingHammer(new Hammer(element), {preventDefault: true});
   *
   * @param {Hammer.Manager} hammer   An hammer instance.
   * @param {Object} [options]        Available options:
   *                                  - `preventDefault: true | false | 'mouse' | 'touch' | 'pen'`.
   *                                    Enforce preventing the default browser behavior.
   *                                    Cannot be set to `false`.
   * @return {Hammer.Manager} Returns the same hammer instance with extended
   *                          functionality
   */
  return function propagating(hammer, options) {
    var _options = options || {
      preventDefault: false
    };

    if (hammer.Manager) {
      // This looks like the Hammer constructor.
      // Overload the constructors with our own.
      var Hammer = hammer;

      var PropagatingHammer = function(element, options) {
        var o = Object.create(_options);
        if (options) Hammer.assign(o, options);
        return propagating(new Hammer(element, o), o);
      };
      Hammer.assign(PropagatingHammer, Hammer);

      PropagatingHammer.Manager = function (element, options) {
        var o = Object.create(_options);
        if (options) Hammer.assign(o, options);
        return propagating(new Hammer.Manager(element, o), o);
      };

      return PropagatingHammer;
    }

    // create a wrapper object which will override the functions
    // `on`, `off`, `destroy`, and `emit` of the hammer instance
    var wrapper = Object.create(hammer);

    // attach to DOM element
    var element = hammer.element;

    if(!element.hammer) element.hammer = [];
    element.hammer.push(wrapper);

    // register an event to catch the start of a gesture and store the
    // target in a singleton
    hammer.on('hammer.input', function (event) {
      if (_options.preventDefault === true || (_options.preventDefault === event.pointerType)) {
        event.preventDefault();
      }
      if (event.isFirst) {
        _firstTarget = event.target;
      }
    });

    /** @type {Object.<String, Array.<function>>} */
    wrapper._handlers = {};

    /**
     * Register a handler for one or multiple events
     * @param {String} events    A space separated string with events
     * @param {function} handler A callback function, called as handler(event)
     * @returns {Hammer.Manager} Returns the hammer instance
     */
    wrapper.on = function (events, handler) {
      // register the handler
      split(events).forEach(function (event) {
        var _handlers = wrapper._handlers[event];
        if (!_handlers) {
          wrapper._handlers[event] = _handlers = [];

          // register the static, propagated handler
          hammer.on(event, propagatedHandler);
        }
        _handlers.push(handler);
      });

      return wrapper;
    };

    /**
     * Unregister a handler for one or multiple events
     * @param {String} events      A space separated string with events
     * @param {function} [handler] Optional. The registered handler. If not
     *                             provided, all handlers for given events
     *                             are removed.
     * @returns {Hammer.Manager}   Returns the hammer instance
     */
    wrapper.off = function (events, handler) {
      // unregister the handler
      split(events).forEach(function (event) {
        var _handlers = wrapper._handlers[event];
        if (_handlers) {
          _handlers = handler ? _handlers.filter(function (h) {
            return h !== handler;
          }) : [];

          if (_handlers.length > 0) {
            wrapper._handlers[event] = _handlers;
          }
          else {
            // remove static, propagated handler
            hammer.off(event, propagatedHandler);
            delete wrapper._handlers[event];
          }
        }
      });

      return wrapper;
    };

    /**
     * Emit to the event listeners
     * @param {string} eventType
     * @param {Event} event
     */
    wrapper.emit = function(eventType, event) {
      _firstTarget = event.target;
      hammer.emit(eventType, event);
    };

    wrapper.destroy = function () {
      // Detach from DOM element
      var hammers = hammer.element.hammer;
      var idx = hammers.indexOf(wrapper);
      if(idx !== -1) hammers.splice(idx,1);
      if(!hammers.length) delete hammer.element.hammer;

      // clear all handlers
      wrapper._handlers = {};

      // call original hammer destroy
      hammer.destroy();
    };

    // split a string with space separated words
    function split(events) {
      return events.match(/[^ ]+/g);
    }

    /**
     * A static event handler, applying event propagation.
     * @param {Object} event
     */
    function propagatedHandler(event) {
      // let only a single hammer instance handle this event
      if (event.type !== 'hammer.input') {
        // it is possible that the same srcEvent is used with multiple hammer events,
        // we keep track on which events are handled in an object _handled
        if (!event.srcEvent._handled) {
          event.srcEvent._handled = {};
        }

        if (event.srcEvent._handled[event.type]) {
          return;
        }
        else {
          event.srcEvent._handled[event.type] = true;
        }
      }

      // attach a stopPropagation function to the event
      var stopped = false;
      event.stopPropagation = function () {
        stopped = true;
      };

      //wrap the srcEvent's stopPropagation to also stop hammer propagation:
      var srcStop = event.srcEvent.stopPropagation.bind(event.srcEvent);
      if(typeof srcStop == "function") {
        event.srcEvent.stopPropagation = function(){
          srcStop();
          event.stopPropagation();
        }
      }

      // attach firstTarget property to the event
      event.firstTarget = _firstTarget;

      // propagate over all elements (until stopped)
      var elem = _firstTarget;
      while (elem && !stopped) {
        var elemHammer = elem.hammer;
        if(elemHammer){
          var _handlers;
          for(var k = 0; k < elemHammer.length; k++){
            _handlers = elemHammer[k]._handlers[event.type];
            if(_handlers) for (var i = 0; i < _handlers.length && !stopped; i++) {
              _handlers[i](event);
            }
          }
        }
        elem = elem.parentNode;
      }
    }

    return wrapper;
  };
}));


/***/ }),
/* 176 */
/***/ (function(module, exports, __webpack_require__) {

var __WEBPACK_AMD_DEFINE_RESULT__;/*! Hammer.JS - v2.0.7 - 2016-04-22
 * http://hammerjs.github.io/
 *
 * Copyright (c) 2016 Jorik Tangelder;
 * Licensed under the MIT license */
(function(window, document, exportName, undefined) {
  'use strict';

var VENDOR_PREFIXES = ['', 'webkit', 'Moz', 'MS', 'ms', 'o'];
var TEST_ELEMENT = document.createElement('div');

var TYPE_FUNCTION = 'function';

var round = Math.round;
var abs = Math.abs;
var now = Date.now;

/**
 * set a timeout with a given scope
 * @param {Function} fn
 * @param {Number} timeout
 * @param {Object} context
 * @returns {number}
 */
function setTimeoutContext(fn, timeout, context) {
    return setTimeout(bindFn(fn, context), timeout);
}

/**
 * if the argument is an array, we want to execute the fn on each entry
 * if it aint an array we don't want to do a thing.
 * this is used by all the methods that accept a single and array argument.
 * @param {*|Array} arg
 * @param {String} fn
 * @param {Object} [context]
 * @returns {Boolean}
 */
function invokeArrayArg(arg, fn, context) {
    if (Array.isArray(arg)) {
        each(arg, context[fn], context);
        return true;
    }
    return false;
}

/**
 * walk objects and arrays
 * @param {Object} obj
 * @param {Function} iterator
 * @param {Object} context
 */
function each(obj, iterator, context) {
    var i;

    if (!obj) {
        return;
    }

    if (obj.forEach) {
        obj.forEach(iterator, context);
    } else if (obj.length !== undefined) {
        i = 0;
        while (i < obj.length) {
            iterator.call(context, obj[i], i, obj);
            i++;
        }
    } else {
        for (i in obj) {
            obj.hasOwnProperty(i) && iterator.call(context, obj[i], i, obj);
        }
    }
}

/**
 * wrap a method with a deprecation warning and stack trace
 * @param {Function} method
 * @param {String} name
 * @param {String} message
 * @returns {Function} A new function wrapping the supplied method.
 */
function deprecate(method, name, message) {
    var deprecationMessage = 'DEPRECATED METHOD: ' + name + '\n' + message + ' AT \n';
    return function() {
        var e = new Error('get-stack-trace');
        var stack = e && e.stack ? e.stack.replace(/^[^\(]+?[\n$]/gm, '')
            .replace(/^\s+at\s+/gm, '')
            .replace(/^Object.<anonymous>\s*\(/gm, '{anonymous}()@') : 'Unknown Stack Trace';

        var log = window.console && (window.console.warn || window.console.log);
        if (log) {
            log.call(window.console, deprecationMessage, stack);
        }
        return method.apply(this, arguments);
    };
}

/**
 * extend object.
 * means that properties in dest will be overwritten by the ones in src.
 * @param {Object} target
 * @param {...Object} objects_to_assign
 * @returns {Object} target
 */
var assign;
if (typeof Object.assign !== 'function') {
    assign = function assign(target) {
        if (target === undefined || target === null) {
            throw new TypeError('Cannot convert undefined or null to object');
        }

        var output = Object(target);
        for (var index = 1; index < arguments.length; index++) {
            var source = arguments[index];
            if (source !== undefined && source !== null) {
                for (var nextKey in source) {
                    if (source.hasOwnProperty(nextKey)) {
                        output[nextKey] = source[nextKey];
                    }
                }
            }
        }
        return output;
    };
} else {
    assign = Object.assign;
}

/**
 * extend object.
 * means that properties in dest will be overwritten by the ones in src.
 * @param {Object} dest
 * @param {Object} src
 * @param {Boolean} [merge=false]
 * @returns {Object} dest
 */
var extend = deprecate(function extend(dest, src, merge) {
    var keys = Object.keys(src);
    var i = 0;
    while (i < keys.length) {
        if (!merge || (merge && dest[keys[i]] === undefined)) {
            dest[keys[i]] = src[keys[i]];
        }
        i++;
    }
    return dest;
}, 'extend', 'Use `assign`.');

/**
 * merge the values from src in the dest.
 * means that properties that exist in dest will not be overwritten by src
 * @param {Object} dest
 * @param {Object} src
 * @returns {Object} dest
 */
var merge = deprecate(function merge(dest, src) {
    return extend(dest, src, true);
}, 'merge', 'Use `assign`.');

/**
 * simple class inheritance
 * @param {Function} child
 * @param {Function} base
 * @param {Object} [properties]
 */
function inherit(child, base, properties) {
    var baseP = base.prototype,
        childP;

    childP = child.prototype = Object.create(baseP);
    childP.constructor = child;
    childP._super = baseP;

    if (properties) {
        assign(childP, properties);
    }
}

/**
 * simple function bind
 * @param {Function} fn
 * @param {Object} context
 * @returns {Function}
 */
function bindFn(fn, context) {
    return function boundFn() {
        return fn.apply(context, arguments);
    };
}

/**
 * let a boolean value also be a function that must return a boolean
 * this first item in args will be used as the context
 * @param {Boolean|Function} val
 * @param {Array} [args]
 * @returns {Boolean}
 */
function boolOrFn(val, args) {
    if (typeof val == TYPE_FUNCTION) {
        return val.apply(args ? args[0] || undefined : undefined, args);
    }
    return val;
}

/**
 * use the val2 when val1 is undefined
 * @param {*} val1
 * @param {*} val2
 * @returns {*}
 */
function ifUndefined(val1, val2) {
    return (val1 === undefined) ? val2 : val1;
}

/**
 * addEventListener with multiple events at once
 * @param {EventTarget} target
 * @param {String} types
 * @param {Function} handler
 */
function addEventListeners(target, types, handler) {
    each(splitStr(types), function(type) {
        target.addEventListener(type, handler, false);
    });
}

/**
 * removeEventListener with multiple events at once
 * @param {EventTarget} target
 * @param {String} types
 * @param {Function} handler
 */
function removeEventListeners(target, types, handler) {
    each(splitStr(types), function(type) {
        target.removeEventListener(type, handler, false);
    });
}

/**
 * find if a node is in the given parent
 * @method hasParent
 * @param {HTMLElement} node
 * @param {HTMLElement} parent
 * @return {Boolean} found
 */
function hasParent(node, parent) {
    while (node) {
        if (node == parent) {
            return true;
        }
        node = node.parentNode;
    }
    return false;
}

/**
 * small indexOf wrapper
 * @param {String} str
 * @param {String} find
 * @returns {Boolean} found
 */
function inStr(str, find) {
    return str.indexOf(find) > -1;
}

/**
 * split string on whitespace
 * @param {String} str
 * @returns {Array} words
 */
function splitStr(str) {
    return str.trim().split(/\s+/g);
}

/**
 * find if a array contains the object using indexOf or a simple polyFill
 * @param {Array} src
 * @param {String} find
 * @param {String} [findByKey]
 * @return {Boolean|Number} false when not found, or the index
 */
function inArray(src, find, findByKey) {
    if (src.indexOf && !findByKey) {
        return src.indexOf(find);
    } else {
        var i = 0;
        while (i < src.length) {
            if ((findByKey && src[i][findByKey] == find) || (!findByKey && src[i] === find)) {
                return i;
            }
            i++;
        }
        return -1;
    }
}

/**
 * convert array-like objects to real arrays
 * @param {Object} obj
 * @returns {Array}
 */
function toArray(obj) {
    return Array.prototype.slice.call(obj, 0);
}

/**
 * unique array with objects based on a key (like 'id') or just by the array's value
 * @param {Array} src [{id:1},{id:2},{id:1}]
 * @param {String} [key]
 * @param {Boolean} [sort=False]
 * @returns {Array} [{id:1},{id:2}]
 */
function uniqueArray(src, key, sort) {
    var results = [];
    var values = [];
    var i = 0;

    while (i < src.length) {
        var val = key ? src[i][key] : src[i];
        if (inArray(values, val) < 0) {
            results.push(src[i]);
        }
        values[i] = val;
        i++;
    }

    if (sort) {
        if (!key) {
            results = results.sort();
        } else {
            results = results.sort(function sortUniqueArray(a, b) {
                return a[key] > b[key];
            });
        }
    }

    return results;
}

/**
 * get the prefixed property
 * @param {Object} obj
 * @param {String} property
 * @returns {String|Undefined} prefixed
 */
function prefixed(obj, property) {
    var prefix, prop;
    var camelProp = property[0].toUpperCase() + property.slice(1);

    var i = 0;
    while (i < VENDOR_PREFIXES.length) {
        prefix = VENDOR_PREFIXES[i];
        prop = (prefix) ? prefix + camelProp : property;

        if (prop in obj) {
            return prop;
        }
        i++;
    }
    return undefined;
}

/**
 * get a unique id
 * @returns {number} uniqueId
 */
var _uniqueId = 1;
function uniqueId() {
    return _uniqueId++;
}

/**
 * get the window object of an element
 * @param {HTMLElement} element
 * @returns {DocumentView|Window}
 */
function getWindowForElement(element) {
    var doc = element.ownerDocument || element;
    return (doc.defaultView || doc.parentWindow || window);
}

var MOBILE_REGEX = /mobile|tablet|ip(ad|hone|od)|android/i;

var SUPPORT_TOUCH = ('ontouchstart' in window);
var SUPPORT_POINTER_EVENTS = prefixed(window, 'PointerEvent') !== undefined;
var SUPPORT_ONLY_TOUCH = SUPPORT_TOUCH && MOBILE_REGEX.test(navigator.userAgent);

var INPUT_TYPE_TOUCH = 'touch';
var INPUT_TYPE_PEN = 'pen';
var INPUT_TYPE_MOUSE = 'mouse';
var INPUT_TYPE_KINECT = 'kinect';

var COMPUTE_INTERVAL = 25;

var INPUT_START = 1;
var INPUT_MOVE = 2;
var INPUT_END = 4;
var INPUT_CANCEL = 8;

var DIRECTION_NONE = 1;
var DIRECTION_LEFT = 2;
var DIRECTION_RIGHT = 4;
var DIRECTION_UP = 8;
var DIRECTION_DOWN = 16;

var DIRECTION_HORIZONTAL = DIRECTION_LEFT | DIRECTION_RIGHT;
var DIRECTION_VERTICAL = DIRECTION_UP | DIRECTION_DOWN;
var DIRECTION_ALL = DIRECTION_HORIZONTAL | DIRECTION_VERTICAL;

var PROPS_XY = ['x', 'y'];
var PROPS_CLIENT_XY = ['clientX', 'clientY'];

/**
 * create new input type manager
 * @param {Manager} manager
 * @param {Function} callback
 * @returns {Input}
 * @constructor
 */
function Input(manager, callback) {
    var self = this;
    this.manager = manager;
    this.callback = callback;
    this.element = manager.element;
    this.target = manager.options.inputTarget;

    // smaller wrapper around the handler, for the scope and the enabled state of the manager,
    // so when disabled the input events are completely bypassed.
    this.domHandler = function(ev) {
        if (boolOrFn(manager.options.enable, [manager])) {
            self.handler(ev);
        }
    };

    this.init();

}

Input.prototype = {
    /**
     * should handle the inputEvent data and trigger the callback
     * @virtual
     */
    handler: function() { },

    /**
     * bind the events
     */
    init: function() {
        this.evEl && addEventListeners(this.element, this.evEl, this.domHandler);
        this.evTarget && addEventListeners(this.target, this.evTarget, this.domHandler);
        this.evWin && addEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler);
    },

    /**
     * unbind the events
     */
    destroy: function() {
        this.evEl && removeEventListeners(this.element, this.evEl, this.domHandler);
        this.evTarget && removeEventListeners(this.target, this.evTarget, this.domHandler);
        this.evWin && removeEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler);
    }
};

/**
 * create new input type manager
 * called by the Manager constructor
 * @param {Hammer} manager
 * @returns {Input}
 */
function createInputInstance(manager) {
    var Type;
    var inputClass = manager.options.inputClass;

    if (inputClass) {
        Type = inputClass;
    } else if (SUPPORT_POINTER_EVENTS) {
        Type = PointerEventInput;
    } else if (SUPPORT_ONLY_TOUCH) {
        Type = TouchInput;
    } else if (!SUPPORT_TOUCH) {
        Type = MouseInput;
    } else {
        Type = TouchMouseInput;
    }
    return new (Type)(manager, inputHandler);
}

/**
 * handle input events
 * @param {Manager} manager
 * @param {String} eventType
 * @param {Object} input
 */
function inputHandler(manager, eventType, input) {
    var pointersLen = input.pointers.length;
    var changedPointersLen = input.changedPointers.length;
    var isFirst = (eventType & INPUT_START && (pointersLen - changedPointersLen === 0));
    var isFinal = (eventType & (INPUT_END | INPUT_CANCEL) && (pointersLen - changedPointersLen === 0));

    input.isFirst = !!isFirst;
    input.isFinal = !!isFinal;

    if (isFirst) {
        manager.session = {};
    }

    // source event is the normalized value of the domEvents
    // like 'touchstart, mouseup, pointerdown'
    input.eventType = eventType;

    // compute scale, rotation etc
    computeInputData(manager, input);

    // emit secret event
    manager.emit('hammer.input', input);

    manager.recognize(input);
    manager.session.prevInput = input;
}

/**
 * extend the data with some usable properties like scale, rotate, velocity etc
 * @param {Object} manager
 * @param {Object} input
 */
function computeInputData(manager, input) {
    var session = manager.session;
    var pointers = input.pointers;
    var pointersLength = pointers.length;

    // store the first input to calculate the distance and direction
    if (!session.firstInput) {
        session.firstInput = simpleCloneInputData(input);
    }

    // to compute scale and rotation we need to store the multiple touches
    if (pointersLength > 1 && !session.firstMultiple) {
        session.firstMultiple = simpleCloneInputData(input);
    } else if (pointersLength === 1) {
        session.firstMultiple = false;
    }

    var firstInput = session.firstInput;
    var firstMultiple = session.firstMultiple;
    var offsetCenter = firstMultiple ? firstMultiple.center : firstInput.center;

    var center = input.center = getCenter(pointers);
    input.timeStamp = now();
    input.deltaTime = input.timeStamp - firstInput.timeStamp;

    input.angle = getAngle(offsetCenter, center);
    input.distance = getDistance(offsetCenter, center);

    computeDeltaXY(session, input);
    input.offsetDirection = getDirection(input.deltaX, input.deltaY);

    var overallVelocity = getVelocity(input.deltaTime, input.deltaX, input.deltaY);
    input.overallVelocityX = overallVelocity.x;
    input.overallVelocityY = overallVelocity.y;
    input.overallVelocity = (abs(overallVelocity.x) > abs(overallVelocity.y)) ? overallVelocity.x : overallVelocity.y;

    input.scale = firstMultiple ? getScale(firstMultiple.pointers, pointers) : 1;
    input.rotation = firstMultiple ? getRotation(firstMultiple.pointers, pointers) : 0;

    input.maxPointers = !session.prevInput ? input.pointers.length : ((input.pointers.length >
        session.prevInput.maxPointers) ? input.pointers.length : session.prevInput.maxPointers);

    computeIntervalInputData(session, input);

    // find the correct target
    var target = manager.element;
    if (hasParent(input.srcEvent.target, target)) {
        target = input.srcEvent.target;
    }
    input.target = target;
}

function computeDeltaXY(session, input) {
    var center = input.center;
    var offset = session.offsetDelta || {};
    var prevDelta = session.prevDelta || {};
    var prevInput = session.prevInput || {};

    if (input.eventType === INPUT_START || prevInput.eventType === INPUT_END) {
        prevDelta = session.prevDelta = {
            x: prevInput.deltaX || 0,
            y: prevInput.deltaY || 0
        };

        offset = session.offsetDelta = {
            x: center.x,
            y: center.y
        };
    }

    input.deltaX = prevDelta.x + (center.x - offset.x);
    input.deltaY = prevDelta.y + (center.y - offset.y);
}

/**
 * velocity is calculated every x ms
 * @param {Object} session
 * @param {Object} input
 */
function computeIntervalInputData(session, input) {
    var last = session.lastInterval || input,
        deltaTime = input.timeStamp - last.timeStamp,
        velocity, velocityX, velocityY, direction;

    if (input.eventType != INPUT_CANCEL && (deltaTime > COMPUTE_INTERVAL || last.velocity === undefined)) {
        var deltaX = input.deltaX - last.deltaX;
        var deltaY = input.deltaY - last.deltaY;

        var v = getVelocity(deltaTime, deltaX, deltaY);
        velocityX = v.x;
        velocityY = v.y;
        velocity = (abs(v.x) > abs(v.y)) ? v.x : v.y;
        direction = getDirection(deltaX, deltaY);

        session.lastInterval = input;
    } else {
        // use latest velocity info if it doesn't overtake a minimum period
        velocity = last.velocity;
        velocityX = last.velocityX;
        velocityY = last.velocityY;
        direction = last.direction;
    }

    input.velocity = velocity;
    input.velocityX = velocityX;
    input.velocityY = velocityY;
    input.direction = direction;
}

/**
 * create a simple clone from the input used for storage of firstInput and firstMultiple
 * @param {Object} input
 * @returns {Object} clonedInputData
 */
function simpleCloneInputData(input) {
    // make a simple copy of the pointers because we will get a reference if we don't
    // we only need clientXY for the calculations
    var pointers = [];
    var i = 0;
    while (i < input.pointers.length) {
        pointers[i] = {
            clientX: round(input.pointers[i].clientX),
            clientY: round(input.pointers[i].clientY)
        };
        i++;
    }

    return {
        timeStamp: now(),
        pointers: pointers,
        center: getCenter(pointers),
        deltaX: input.deltaX,
        deltaY: input.deltaY
    };
}

/**
 * get the center of all the pointers
 * @param {Array} pointers
 * @return {Object} center contains `x` and `y` properties
 */
function getCenter(pointers) {
    var pointersLength = pointers.length;

    // no need to loop when only one touch
    if (pointersLength === 1) {
        return {
            x: round(pointers[0].clientX),
            y: round(pointers[0].clientY)
        };
    }

    var x = 0, y = 0, i = 0;
    while (i < pointersLength) {
        x += pointers[i].clientX;
        y += pointers[i].clientY;
        i++;
    }

    return {
        x: round(x / pointersLength),
        y: round(y / pointersLength)
    };
}

/**
 * calculate the velocity between two points. unit is in px per ms.
 * @param {Number} deltaTime
 * @param {Number} x
 * @param {Number} y
 * @return {Object} velocity `x` and `y`
 */
function getVelocity(deltaTime, x, y) {
    return {
        x: x / deltaTime || 0,
        y: y / deltaTime || 0
    };
}

/**
 * get the direction between two points
 * @param {Number} x
 * @param {Number} y
 * @return {Number} direction
 */
function getDirection(x, y) {
    if (x === y) {
        return DIRECTION_NONE;
    }

    if (abs(x) >= abs(y)) {
        return x < 0 ? DIRECTION_LEFT : DIRECTION_RIGHT;
    }
    return y < 0 ? DIRECTION_UP : DIRECTION_DOWN;
}

/**
 * calculate the absolute distance between two points
 * @param {Object} p1 {x, y}
 * @param {Object} p2 {x, y}
 * @param {Array} [props] containing x and y keys
 * @return {Number} distance
 */
function getDistance(p1, p2, props) {
    if (!props) {
        props = PROPS_XY;
    }
    var x = p2[props[0]] - p1[props[0]],
        y = p2[props[1]] - p1[props[1]];

    return Math.sqrt((x * x) + (y * y));
}

/**
 * calculate the angle between two coordinates
 * @param {Object} p1
 * @param {Object} p2
 * @param {Array} [props] containing x and y keys
 * @return {Number} angle
 */
function getAngle(p1, p2, props) {
    if (!props) {
        props = PROPS_XY;
    }
    var x = p2[props[0]] - p1[props[0]],
        y = p2[props[1]] - p1[props[1]];
    return Math.atan2(y, x) * 180 / Math.PI;
}

/**
 * calculate the rotation degrees between two pointersets
 * @param {Array} start array of pointers
 * @param {Array} end array of pointers
 * @return {Number} rotation
 */
function getRotation(start, end) {
    return getAngle(end[1], end[0], PROPS_CLIENT_XY) + getAngle(start[1], start[0], PROPS_CLIENT_XY);
}

/**
 * calculate the scale factor between two pointersets
 * no scale is 1, and goes down to 0 when pinched together, and bigger when pinched out
 * @param {Array} start array of pointers
 * @param {Array} end array of pointers
 * @return {Number} scale
 */
function getScale(start, end) {
    return getDistance(end[0], end[1], PROPS_CLIENT_XY) / getDistance(start[0], start[1], PROPS_CLIENT_XY);
}

var MOUSE_INPUT_MAP = {
    mousedown: INPUT_START,
    mousemove: INPUT_MOVE,
    mouseup: INPUT_END
};

var MOUSE_ELEMENT_EVENTS = 'mousedown';
var MOUSE_WINDOW_EVENTS = 'mousemove mouseup';

/**
 * Mouse events input
 * @constructor
 * @extends Input
 */
function MouseInput() {
    this.evEl = MOUSE_ELEMENT_EVENTS;
    this.evWin = MOUSE_WINDOW_EVENTS;

    this.pressed = false; // mousedown state

    Input.apply(this, arguments);
}

inherit(MouseInput, Input, {
    /**
     * handle mouse events
     * @param {Object} ev
     */
    handler: function MEhandler(ev) {
        var eventType = MOUSE_INPUT_MAP[ev.type];

        // on start we want to have the left mouse button down
        if (eventType & INPUT_START && ev.button === 0) {
            this.pressed = true;
        }

        if (eventType & INPUT_MOVE && ev.which !== 1) {
            eventType = INPUT_END;
        }

        // mouse must be down
        if (!this.pressed) {
            return;
        }

        if (eventType & INPUT_END) {
            this.pressed = false;
        }

        this.callback(this.manager, eventType, {
            pointers: [ev],
            changedPointers: [ev],
            pointerType: INPUT_TYPE_MOUSE,
            srcEvent: ev
        });
    }
});

var POINTER_INPUT_MAP = {
    pointerdown: INPUT_START,
    pointermove: INPUT_MOVE,
    pointerup: INPUT_END,
    pointercancel: INPUT_CANCEL,
    pointerout: INPUT_CANCEL
};

// in IE10 the pointer types is defined as an enum
var IE10_POINTER_TYPE_ENUM = {
    2: INPUT_TYPE_TOUCH,
    3: INPUT_TYPE_PEN,
    4: INPUT_TYPE_MOUSE,
    5: INPUT_TYPE_KINECT // see https://twitter.com/jacobrossi/status/480596438489890816
};

var POINTER_ELEMENT_EVENTS = 'pointerdown';
var POINTER_WINDOW_EVENTS = 'pointermove pointerup pointercancel';

// IE10 has prefixed support, and case-sensitive
if (window.MSPointerEvent && !window.PointerEvent) {
    POINTER_ELEMENT_EVENTS = 'MSPointerDown';
    POINTER_WINDOW_EVENTS = 'MSPointerMove MSPointerUp MSPointerCancel';
}

/**
 * Pointer events input
 * @constructor
 * @extends Input
 */
function PointerEventInput() {
    this.evEl = POINTER_ELEMENT_EVENTS;
    this.evWin = POINTER_WINDOW_EVENTS;

    Input.apply(this, arguments);

    this.store = (this.manager.session.pointerEvents = []);
}

inherit(PointerEventInput, Input, {
    /**
     * handle mouse events
     * @param {Object} ev
     */
    handler: function PEhandler(ev) {
        var store = this.store;
        var removePointer = false;

        var eventTypeNormalized = ev.type.toLowerCase().replace('ms', '');
        var eventType = POINTER_INPUT_MAP[eventTypeNormalized];
        var pointerType = IE10_POINTER_TYPE_ENUM[ev.pointerType] || ev.pointerType;

        var isTouch = (pointerType == INPUT_TYPE_TOUCH);

        // get index of the event in the store
        var storeIndex = inArray(store, ev.pointerId, 'pointerId');

        // start and mouse must be down
        if (eventType & INPUT_START && (ev.button === 0 || isTouch)) {
            if (storeIndex < 0) {
                store.push(ev);
                storeIndex = store.length - 1;
            }
        } else if (eventType & (INPUT_END | INPUT_CANCEL)) {
            removePointer = true;
        }

        // it not found, so the pointer hasn't been down (so it's probably a hover)
        if (storeIndex < 0) {
            return;
        }

        // update the event in the store
        store[storeIndex] = ev;

        this.callback(this.manager, eventType, {
            pointers: store,
            changedPointers: [ev],
            pointerType: pointerType,
            srcEvent: ev
        });

        if (removePointer) {
            // remove from the store
            store.splice(storeIndex, 1);
        }
    }
});

var SINGLE_TOUCH_INPUT_MAP = {
    touchstart: INPUT_START,
    touchmove: INPUT_MOVE,
    touchend: INPUT_END,
    touchcancel: INPUT_CANCEL
};

var SINGLE_TOUCH_TARGET_EVENTS = 'touchstart';
var SINGLE_TOUCH_WINDOW_EVENTS = 'touchstart touchmove touchend touchcancel';

/**
 * Touch events input
 * @constructor
 * @extends Input
 */
function SingleTouchInput() {
    this.evTarget = SINGLE_TOUCH_TARGET_EVENTS;
    this.evWin = SINGLE_TOUCH_WINDOW_EVENTS;
    this.started = false;

    Input.apply(this, arguments);
}

inherit(SingleTouchInput, Input, {
    handler: function TEhandler(ev) {
        var type = SINGLE_TOUCH_INPUT_MAP[ev.type];

        // should we handle the touch events?
        if (type === INPUT_START) {
            this.started = true;
        }

        if (!this.started) {
            return;
        }

        var touches = normalizeSingleTouches.call(this, ev, type);

        // when done, reset the started state
        if (type & (INPUT_END | INPUT_CANCEL) && touches[0].length - touches[1].length === 0) {
            this.started = false;
        }

        this.callback(this.manager, type, {
            pointers: touches[0],
            changedPointers: touches[1],
            pointerType: INPUT_TYPE_TOUCH,
            srcEvent: ev
        });
    }
});

/**
 * @this {TouchInput}
 * @param {Object} ev
 * @param {Number} type flag
 * @returns {undefined|Array} [all, changed]
 */
function normalizeSingleTouches(ev, type) {
    var all = toArray(ev.touches);
    var changed = toArray(ev.changedTouches);

    if (type & (INPUT_END | INPUT_CANCEL)) {
        all = uniqueArray(all.concat(changed), 'identifier', true);
    }

    return [all, changed];
}

var TOUCH_INPUT_MAP = {
    touchstart: INPUT_START,
    touchmove: INPUT_MOVE,
    touchend: INPUT_END,
    touchcancel: INPUT_CANCEL
};

var TOUCH_TARGET_EVENTS = 'touchstart touchmove touchend touchcancel';

/**
 * Multi-user touch events input
 * @constructor
 * @extends Input
 */
function TouchInput() {
    this.evTarget = TOUCH_TARGET_EVENTS;
    this.targetIds = {};

    Input.apply(this, arguments);
}

inherit(TouchInput, Input, {
    handler: function MTEhandler(ev) {
        var type = TOUCH_INPUT_MAP[ev.type];
        var touches = getTouches.call(this, ev, type);
        if (!touches) {
            return;
        }

        this.callback(this.manager, type, {
            pointers: touches[0],
            changedPointers: touches[1],
            pointerType: INPUT_TYPE_TOUCH,
            srcEvent: ev
        });
    }
});

/**
 * @this {TouchInput}
 * @param {Object} ev
 * @param {Number} type flag
 * @returns {undefined|Array} [all, changed]
 */
function getTouches(ev, type) {
    var allTouches = toArray(ev.touches);
    var targetIds = this.targetIds;

    // when there is only one touch, the process can be simplified
    if (type & (INPUT_START | INPUT_MOVE) && allTouches.length === 1) {
        targetIds[allTouches[0].identifier] = true;
        return [allTouches, allTouches];
    }

    var i,
        targetTouches,
        changedTouches = toArray(ev.changedTouches),
        changedTargetTouches = [],
        target = this.target;

    // get target touches from touches
    targetTouches = allTouches.filter(function(touch) {
        return hasParent(touch.target, target);
    });

    // collect touches
    if (type === INPUT_START) {
        i = 0;
        while (i < targetTouches.length) {
            targetIds[targetTouches[i].identifier] = true;
            i++;
        }
    }

    // filter changed touches to only contain touches that exist in the collected target ids
    i = 0;
    while (i < changedTouches.length) {
        if (targetIds[changedTouches[i].identifier]) {
            changedTargetTouches.push(changedTouches[i]);
        }

        // cleanup removed touches
        if (type & (INPUT_END | INPUT_CANCEL)) {
            delete targetIds[changedTouches[i].identifier];
        }
        i++;
    }

    if (!changedTargetTouches.length) {
        return;
    }

    return [
        // merge targetTouches with changedTargetTouches so it contains ALL touches, including 'end' and 'cancel'
        uniqueArray(targetTouches.concat(changedTargetTouches), 'identifier', true),
        changedTargetTouches
    ];
}

/**
 * Combined touch and mouse input
 *
 * Touch has a higher priority then mouse, and while touching no mouse events are allowed.
 * This because touch devices also emit mouse events while doing a touch.
 *
 * @constructor
 * @extends Input
 */

var DEDUP_TIMEOUT = 2500;
var DEDUP_DISTANCE = 25;

function TouchMouseInput() {
    Input.apply(this, arguments);

    var handler = bindFn(this.handler, this);
    this.touch = new TouchInput(this.manager, handler);
    this.mouse = new MouseInput(this.manager, handler);

    this.primaryTouch = null;
    this.lastTouches = [];
}

inherit(TouchMouseInput, Input, {
    /**
     * handle mouse and touch events
     * @param {Hammer} manager
     * @param {String} inputEvent
     * @param {Object} inputData
     */
    handler: function TMEhandler(manager, inputEvent, inputData) {
        var isTouch = (inputData.pointerType == INPUT_TYPE_TOUCH),
            isMouse = (inputData.pointerType == INPUT_TYPE_MOUSE);

        if (isMouse && inputData.sourceCapabilities && inputData.sourceCapabilities.firesTouchEvents) {
            return;
        }

        // when we're in a touch event, record touches to  de-dupe synthetic mouse event
        if (isTouch) {
            recordTouches.call(this, inputEvent, inputData);
        } else if (isMouse && isSyntheticEvent.call(this, inputData)) {
            return;
        }

        this.callback(manager, inputEvent, inputData);
    },

    /**
     * remove the event listeners
     */
    destroy: function destroy() {
        this.touch.destroy();
        this.mouse.destroy();
    }
});

function recordTouches(eventType, eventData) {
    if (eventType & INPUT_START) {
        this.primaryTouch = eventData.changedPointers[0].identifier;
        setLastTouch.call(this, eventData);
    } else if (eventType & (INPUT_END | INPUT_CANCEL)) {
        setLastTouch.call(this, eventData);
    }
}

function setLastTouch(eventData) {
    var touch = eventData.changedPointers[0];

    if (touch.identifier === this.primaryTouch) {
        var lastTouch = {x: touch.clientX, y: touch.clientY};
        this.lastTouches.push(lastTouch);
        var lts = this.lastTouches;
        var removeLastTouch = function() {
            var i = lts.indexOf(lastTouch);
            if (i > -1) {
                lts.splice(i, 1);
            }
        };
        setTimeout(removeLastTouch, DEDUP_TIMEOUT);
    }
}

function isSyntheticEvent(eventData) {
    var x = eventData.srcEvent.clientX, y = eventData.srcEvent.clientY;
    for (var i = 0; i < this.lastTouches.length; i++) {
        var t = this.lastTouches[i];
        var dx = Math.abs(x - t.x), dy = Math.abs(y - t.y);
        if (dx <= DEDUP_DISTANCE && dy <= DEDUP_DISTANCE) {
            return true;
        }
    }
    return false;
}

var PREFIXED_TOUCH_ACTION = prefixed(TEST_ELEMENT.style, 'touchAction');
var NATIVE_TOUCH_ACTION = PREFIXED_TOUCH_ACTION !== undefined;

// magical touchAction value
var TOUCH_ACTION_COMPUTE = 'compute';
var TOUCH_ACTION_AUTO = 'auto';
var TOUCH_ACTION_MANIPULATION = 'manipulation'; // not implemented
var TOUCH_ACTION_NONE = 'none';
var TOUCH_ACTION_PAN_X = 'pan-x';
var TOUCH_ACTION_PAN_Y = 'pan-y';
var TOUCH_ACTION_MAP = getTouchActionProps();

/**
 * Touch Action
 * sets the touchAction property or uses the js alternative
 * @param {Manager} manager
 * @param {String} value
 * @constructor
 */
function TouchAction(manager, value) {
    this.manager = manager;
    this.set(value);
}

TouchAction.prototype = {
    /**
     * set the touchAction value on the element or enable the polyfill
     * @param {String} value
     */
    set: function(value) {
        // find out the touch-action by the event handlers
        if (value == TOUCH_ACTION_COMPUTE) {
            value = this.compute();
        }

        if (NATIVE_TOUCH_ACTION && this.manager.element.style && TOUCH_ACTION_MAP[value]) {
            this.manager.element.style[PREFIXED_TOUCH_ACTION] = value;
        }
        this.actions = value.toLowerCase().trim();
    },

    /**
     * just re-set the touchAction value
     */
    update: function() {
        this.set(this.manager.options.touchAction);
    },

    /**
     * compute the value for the touchAction property based on the recognizer's settings
     * @returns {String} value
     */
    compute: function() {
        var actions = [];
        each(this.manager.recognizers, function(recognizer) {
            if (boolOrFn(recognizer.options.enable, [recognizer])) {
                actions = actions.concat(recognizer.getTouchAction());
            }
        });
        return cleanTouchActions(actions.join(' '));
    },

    /**
     * this method is called on each input cycle and provides the preventing of the browser behavior
     * @param {Object} input
     */
    preventDefaults: function(input) {
        var srcEvent = input.srcEvent;
        var direction = input.offsetDirection;

        // if the touch action did prevented once this session
        if (this.manager.session.prevented) {
            srcEvent.preventDefault();
            return;
        }

        var actions = this.actions;
        var hasNone = inStr(actions, TOUCH_ACTION_NONE) && !TOUCH_ACTION_MAP[TOUCH_ACTION_NONE];
        var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_Y];
        var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_X];

        if (hasNone) {
            //do not prevent defaults if this is a tap gesture

            var isTapPointer = input.pointers.length === 1;
            var isTapMovement = input.distance < 2;
            var isTapTouchTime = input.deltaTime < 250;

            if (isTapPointer && isTapMovement && isTapTouchTime) {
                return;
            }
        }

        if (hasPanX && hasPanY) {
            // `pan-x pan-y` means browser handles all scrolling/panning, do not prevent
            return;
        }

        if (hasNone ||
            (hasPanY && direction & DIRECTION_HORIZONTAL) ||
            (hasPanX && direction & DIRECTION_VERTICAL)) {
            return this.preventSrc(srcEvent);
        }
    },

    /**
     * call preventDefault to prevent the browser's default behavior (scrolling in most cases)
     * @param {Object} srcEvent
     */
    preventSrc: function(srcEvent) {
        this.manager.session.prevented = true;
        srcEvent.preventDefault();
    }
};

/**
 * when the touchActions are collected they are not a valid value, so we need to clean things up. *
 * @param {String} actions
 * @returns {*}
 */
function cleanTouchActions(actions) {
    // none
    if (inStr(actions, TOUCH_ACTION_NONE)) {
        return TOUCH_ACTION_NONE;
    }

    var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X);
    var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y);

    // if both pan-x and pan-y are set (different recognizers
    // for different directions, e.g. horizontal pan but vertical swipe?)
    // we need none (as otherwise with pan-x pan-y combined none of these
    // recognizers will work, since the browser would handle all panning
    if (hasPanX && hasPanY) {
        return TOUCH_ACTION_NONE;
    }

    // pan-x OR pan-y
    if (hasPanX || hasPanY) {
        return hasPanX ? TOUCH_ACTION_PAN_X : TOUCH_ACTION_PAN_Y;
    }

    // manipulation
    if (inStr(actions, TOUCH_ACTION_MANIPULATION)) {
        return TOUCH_ACTION_MANIPULATION;
    }

    return TOUCH_ACTION_AUTO;
}

function getTouchActionProps() {
    if (!NATIVE_TOUCH_ACTION) {
        return false;
    }
    var touchMap = {};
    var cssSupports = window.CSS && window.CSS.supports;
    ['auto', 'manipulation', 'pan-y', 'pan-x', 'pan-x pan-y', 'none'].forEach(function(val) {

        // If css.supports is not supported but there is native touch-action assume it supports
        // all values. This is the case for IE 10 and 11.
        touchMap[val] = cssSupports ? window.CSS.supports('touch-action', val) : true;
    });
    return touchMap;
}

/**
 * Recognizer flow explained; *
 * All recognizers have the initial state of POSSIBLE when a input session starts.
 * The definition of a input session is from the first input until the last input, with all it's movement in it. *
 * Example session for mouse-input: mousedown -> mousemove -> mouseup
 *
 * On each recognizing cycle (see Manager.recognize) the .recognize() method is executed
 * which determines with state it should be.
 *
 * If the recognizer has the state FAILED, CANCELLED or RECOGNIZED (equals ENDED), it is reset to
 * POSSIBLE to give it another change on the next cycle.
 *
 *               Possible
 *                  |
 *            +-----+---------------+
 *            |                     |
 *      +-----+-----+               |
 *      |           |               |
 *   Failed      Cancelled          |
 *                          +-------+------+
 *                          |              |
 *                      Recognized       Began
 *                                         |
 *                                      Changed
 *                                         |
 *                                  Ended/Recognized
 */
var STATE_POSSIBLE = 1;
var STATE_BEGAN = 2;
var STATE_CHANGED = 4;
var STATE_ENDED = 8;
var STATE_RECOGNIZED = STATE_ENDED;
var STATE_CANCELLED = 16;
var STATE_FAILED = 32;

/**
 * Recognizer
 * Every recognizer needs to extend from this class.
 * @constructor
 * @param {Object} options
 */
function Recognizer(options) {
    this.options = assign({}, this.defaults, options || {});

    this.id = uniqueId();

    this.manager = null;

    // default is enable true
    this.options.enable = ifUndefined(this.options.enable, true);

    this.state = STATE_POSSIBLE;

    this.simultaneous = {};
    this.requireFail = [];
}

Recognizer.prototype = {
    /**
     * @virtual
     * @type {Object}
     */
    defaults: {},

    /**
     * set options
     * @param {Object} options
     * @return {Recognizer}
     */
    set: function(options) {
        assign(this.options, options);

        // also update the touchAction, in case something changed about the directions/enabled state
        this.manager && this.manager.touchAction.update();
        return this;
    },

    /**
     * recognize simultaneous with an other recognizer.
     * @param {Recognizer} otherRecognizer
     * @returns {Recognizer} this
     */
    recognizeWith: function(otherRecognizer) {
        if (invokeArrayArg(otherRecognizer, 'recognizeWith', this)) {
            return this;
        }

        var simultaneous = this.simultaneous;
        otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);
        if (!simultaneous[otherRecognizer.id]) {
            simultaneous[otherRecognizer.id] = otherRecognizer;
            otherRecognizer.recognizeWith(this);
        }
        return this;
    },

    /**
     * drop the simultaneous link. it doesnt remove the link on the other recognizer.
     * @param {Recognizer} otherRecognizer
     * @returns {Recognizer} this
     */
    dropRecognizeWith: function(otherRecognizer) {
        if (invokeArrayArg(otherRecognizer, 'dropRecognizeWith', this)) {
            return this;
        }

        otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);
        delete this.simultaneous[otherRecognizer.id];
        return this;
    },

    /**
     * recognizer can only run when an other is failing
     * @param {Recognizer} otherRecognizer
     * @returns {Recognizer} this
     */
    requireFailure: function(otherRecognizer) {
        if (invokeArrayArg(otherRecognizer, 'requireFailure', this)) {
            return this;
        }

        var requireFail = this.requireFail;
        otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);
        if (inArray(requireFail, otherRecognizer) === -1) {
            requireFail.push(otherRecognizer);
            otherRecognizer.requireFailure(this);
        }
        return this;
    },

    /**
     * drop the requireFailure link. it does not remove the link on the other recognizer.
     * @param {Recognizer} otherRecognizer
     * @returns {Recognizer} this
     */
    dropRequireFailure: function(otherRecognizer) {
        if (invokeArrayArg(otherRecognizer, 'dropRequireFailure', this)) {
            return this;
        }

        otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);
        var index = inArray(this.requireFail, otherRecognizer);
        if (index > -1) {
            this.requireFail.splice(index, 1);
        }
        return this;
    },

    /**
     * has require failures boolean
     * @returns {boolean}
     */
    hasRequireFailures: function() {
        return this.requireFail.length > 0;
    },

    /**
     * if the recognizer can recognize simultaneous with an other recognizer
     * @param {Recognizer} otherRecognizer
     * @returns {Boolean}
     */
    canRecognizeWith: function(otherRecognizer) {
        return !!this.simultaneous[otherRecognizer.id];
    },

    /**
     * You should use `tryEmit` instead of `emit` directly to check
     * that all the needed recognizers has failed before emitting.
     * @param {Object} input
     */
    emit: function(input) {
        var self = this;
        var state = this.state;

        function emit(event) {
            self.manager.emit(event, input);
        }

        // 'panstart' and 'panmove'
        if (state < STATE_ENDED) {
            emit(self.options.event + stateStr(state));
        }

        emit(self.options.event); // simple 'eventName' events

        if (input.additionalEvent) { // additional event(panleft, panright, pinchin, pinchout...)
            emit(input.additionalEvent);
        }

        // panend and pancancel
        if (state >= STATE_ENDED) {
            emit(self.options.event + stateStr(state));
        }
    },

    /**
     * Check that all the require failure recognizers has failed,
     * if true, it emits a gesture event,
     * otherwise, setup the state to FAILED.
     * @param {Object} input
     */
    tryEmit: function(input) {
        if (this.canEmit()) {
            return this.emit(input);
        }
        // it's failing anyway
        this.state = STATE_FAILED;
    },

    /**
     * can we emit?
     * @returns {boolean}
     */
    canEmit: function() {
        var i = 0;
        while (i < this.requireFail.length) {
            if (!(this.requireFail[i].state & (STATE_FAILED | STATE_POSSIBLE))) {
                return false;
            }
            i++;
        }
        return true;
    },

    /**
     * update the recognizer
     * @param {Object} inputData
     */
    recognize: function(inputData) {
        // make a new copy of the inputData
        // so we can change the inputData without messing up the other recognizers
        var inputDataClone = assign({}, inputData);

        // is is enabled and allow recognizing?
        if (!boolOrFn(this.options.enable, [this, inputDataClone])) {
            this.reset();
            this.state = STATE_FAILED;
            return;
        }

        // reset when we've reached the end
        if (this.state & (STATE_RECOGNIZED | STATE_CANCELLED | STATE_FAILED)) {
            this.state = STATE_POSSIBLE;
        }

        this.state = this.process(inputDataClone);

        // the recognizer has recognized a gesture
        // so trigger an event
        if (this.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED | STATE_CANCELLED)) {
            this.tryEmit(inputDataClone);
        }
    },

    /**
     * return the state of the recognizer
     * the actual recognizing happens in this method
     * @virtual
     * @param {Object} inputData
     * @returns {Const} STATE
     */
    process: function(inputData) { }, // jshint ignore:line

    /**
     * return the preferred touch-action
     * @virtual
     * @returns {Array}
     */
    getTouchAction: function() { },

    /**
     * called when the gesture isn't allowed to recognize
     * like when another is being recognized or it is disabled
     * @virtual
     */
    reset: function() { }
};

/**
 * get a usable string, used as event postfix
 * @param {Const} state
 * @returns {String} state
 */
function stateStr(state) {
    if (state & STATE_CANCELLED) {
        return 'cancel';
    } else if (state & STATE_ENDED) {
        return 'end';
    } else if (state & STATE_CHANGED) {
        return 'move';
    } else if (state & STATE_BEGAN) {
        return 'start';
    }
    return '';
}

/**
 * direction cons to string
 * @param {Const} direction
 * @returns {String}
 */
function directionStr(direction) {
    if (direction == DIRECTION_DOWN) {
        return 'down';
    } else if (direction == DIRECTION_UP) {
        return 'up';
    } else if (direction == DIRECTION_LEFT) {
        return 'left';
    } else if (direction == DIRECTION_RIGHT) {
        return 'right';
    }
    return '';
}

/**
 * get a recognizer by name if it is bound to a manager
 * @param {Recognizer|String} otherRecognizer
 * @param {Recognizer} recognizer
 * @returns {Recognizer}
 */
function getRecognizerByNameIfManager(otherRecognizer, recognizer) {
    var manager = recognizer.manager;
    if (manager) {
        return manager.get(otherRecognizer);
    }
    return otherRecognizer;
}

/**
 * This recognizer is just used as a base for the simple attribute recognizers.
 * @constructor
 * @extends Recognizer
 */
function AttrRecognizer() {
    Recognizer.apply(this, arguments);
}

inherit(AttrRecognizer, Recognizer, {
    /**
     * @namespace
     * @memberof AttrRecognizer
     */
    defaults: {
        /**
         * @type {Number}
         * @default 1
         */
        pointers: 1
    },

    /**
     * Used to check if it the recognizer receives valid input, like input.distance > 10.
     * @memberof AttrRecognizer
     * @param {Object} input
     * @returns {Boolean} recognized
     */
    attrTest: function(input) {
        var optionPointers = this.options.pointers;
        return optionPointers === 0 || input.pointers.length === optionPointers;
    },

    /**
     * Process the input and return the state for the recognizer
     * @memberof AttrRecognizer
     * @param {Object} input
     * @returns {*} State
     */
    process: function(input) {
        var state = this.state;
        var eventType = input.eventType;

        var isRecognized = state & (STATE_BEGAN | STATE_CHANGED);
        var isValid = this.attrTest(input);

        // on cancel input and we've recognized before, return STATE_CANCELLED
        if (isRecognized && (eventType & INPUT_CANCEL || !isValid)) {
            return state | STATE_CANCELLED;
        } else if (isRecognized || isValid) {
            if (eventType & INPUT_END) {
                return state | STATE_ENDED;
            } else if (!(state & STATE_BEGAN)) {
                return STATE_BEGAN;
            }
            return state | STATE_CHANGED;
        }
        return STATE_FAILED;
    }
});

/**
 * Pan
 * Recognized when the pointer is down and moved in the allowed direction.
 * @constructor
 * @extends AttrRecognizer
 */
function PanRecognizer() {
    AttrRecognizer.apply(this, arguments);

    this.pX = null;
    this.pY = null;
}

inherit(PanRecognizer, AttrRecognizer, {
    /**
     * @namespace
     * @memberof PanRecognizer
     */
    defaults: {
        event: 'pan',
        threshold: 10,
        pointers: 1,
        direction: DIRECTION_ALL
    },

    getTouchAction: function() {
        var direction = this.options.direction;
        var actions = [];
        if (direction & DIRECTION_HORIZONTAL) {
            actions.push(TOUCH_ACTION_PAN_Y);
        }
        if (direction & DIRECTION_VERTICAL) {
            actions.push(TOUCH_ACTION_PAN_X);
        }
        return actions;
    },

    directionTest: function(input) {
        var options = this.options;
        var hasMoved = true;
        var distance = input.distance;
        var direction = input.direction;
        var x = input.deltaX;
        var y = input.deltaY;

        // lock to axis?
        if (!(direction & options.direction)) {
            if (options.direction & DIRECTION_HORIZONTAL) {
                direction = (x === 0) ? DIRECTION_NONE : (x < 0) ? DIRECTION_LEFT : DIRECTION_RIGHT;
                hasMoved = x != this.pX;
                distance = Math.abs(input.deltaX);
            } else {
                direction = (y === 0) ? DIRECTION_NONE : (y < 0) ? DIRECTION_UP : DIRECTION_DOWN;
                hasMoved = y != this.pY;
                distance = Math.abs(input.deltaY);
            }
        }
        input.direction = direction;
        return hasMoved && distance > options.threshold && direction & options.direction;
    },

    attrTest: function(input) {
        return AttrRecognizer.prototype.attrTest.call(this, input) &&
            (this.state & STATE_BEGAN || (!(this.state & STATE_BEGAN) && this.directionTest(input)));
    },

    emit: function(input) {

        this.pX = input.deltaX;
        this.pY = input.deltaY;

        var direction = directionStr(input.direction);

        if (direction) {
            input.additionalEvent = this.options.event + direction;
        }
        this._super.emit.call(this, input);
    }
});

/**
 * Pinch
 * Recognized when two or more pointers are moving toward (zoom-in) or away from each other (zoom-out).
 * @constructor
 * @extends AttrRecognizer
 */
function PinchRecognizer() {
    AttrRecognizer.apply(this, arguments);
}

inherit(PinchRecognizer, AttrRecognizer, {
    /**
     * @namespace
     * @memberof PinchRecognizer
     */
    defaults: {
        event: 'pinch',
        threshold: 0,
        pointers: 2
    },

    getTouchAction: function() {
        return [TOUCH_ACTION_NONE];
    },

    attrTest: function(input) {
        return this._super.attrTest.call(this, input) &&
            (Math.abs(input.scale - 1) > this.options.threshold || this.state & STATE_BEGAN);
    },

    emit: function(input) {
        if (input.scale !== 1) {
            var inOut = input.scale < 1 ? 'in' : 'out';
            input.additionalEvent = this.options.event + inOut;
        }
        this._super.emit.call(this, input);
    }
});

/**
 * Press
 * Recognized when the pointer is down for x ms without any movement.
 * @constructor
 * @extends Recognizer
 */
function PressRecognizer() {
    Recognizer.apply(this, arguments);

    this._timer = null;
    this._input = null;
}

inherit(PressRecognizer, Recognizer, {
    /**
     * @namespace
     * @memberof PressRecognizer
     */
    defaults: {
        event: 'press',
        pointers: 1,
        time: 251, // minimal time of the pointer to be pressed
        threshold: 9 // a minimal movement is ok, but keep it low
    },

    getTouchAction: function() {
        return [TOUCH_ACTION_AUTO];
    },

    process: function(input) {
        var options = this.options;
        var validPointers = input.pointers.length === options.pointers;
        var validMovement = input.distance < options.threshold;
        var validTime = input.deltaTime > options.time;

        this._input = input;

        // we only allow little movement
        // and we've reached an end event, so a tap is possible
        if (!validMovement || !validPointers || (input.eventType & (INPUT_END | INPUT_CANCEL) && !validTime)) {
            this.reset();
        } else if (input.eventType & INPUT_START) {
            this.reset();
            this._timer = setTimeoutContext(function() {
                this.state = STATE_RECOGNIZED;
                this.tryEmit();
            }, options.time, this);
        } else if (input.eventType & INPUT_END) {
            return STATE_RECOGNIZED;
        }
        return STATE_FAILED;
    },

    reset: function() {
        clearTimeout(this._timer);
    },

    emit: function(input) {
        if (this.state !== STATE_RECOGNIZED) {
            return;
        }

        if (input && (input.eventType & INPUT_END)) {
            this.manager.emit(this.options.event + 'up', input);
        } else {
            this._input.timeStamp = now();
            this.manager.emit(this.options.event, this._input);
        }
    }
});

/**
 * Rotate
 * Recognized when two or more pointer are moving in a circular motion.
 * @constructor
 * @extends AttrRecognizer
 */
function RotateRecognizer() {
    AttrRecognizer.apply(this, arguments);
}

inherit(RotateRecognizer, AttrRecognizer, {
    /**
     * @namespace
     * @memberof RotateRecognizer
     */
    defaults: {
        event: 'rotate',
        threshold: 0,
        pointers: 2
    },

    getTouchAction: function() {
        return [TOUCH_ACTION_NONE];
    },

    attrTest: function(input) {
        return this._super.attrTest.call(this, input) &&
            (Math.abs(input.rotation) > this.options.threshold || this.state & STATE_BEGAN);
    }
});

/**
 * Swipe
 * Recognized when the pointer is moving fast (velocity), with enough distance in the allowed direction.
 * @constructor
 * @extends AttrRecognizer
 */
function SwipeRecognizer() {
    AttrRecognizer.apply(this, arguments);
}

inherit(SwipeRecognizer, AttrRecognizer, {
    /**
     * @namespace
     * @memberof SwipeRecognizer
     */
    defaults: {
        event: 'swipe',
        threshold: 10,
        velocity: 0.3,
        direction: DIRECTION_HORIZONTAL | DIRECTION_VERTICAL,
        pointers: 1
    },

    getTouchAction: function() {
        return PanRecognizer.prototype.getTouchAction.call(this);
    },

    attrTest: function(input) {
        var direction = this.options.direction;
        var velocity;

        if (direction & (DIRECTION_HORIZONTAL | DIRECTION_VERTICAL)) {
            velocity = input.overallVelocity;
        } else if (direction & DIRECTION_HORIZONTAL) {
            velocity = input.overallVelocityX;
        } else if (direction & DIRECTION_VERTICAL) {
            velocity = input.overallVelocityY;
        }

        return this._super.attrTest.call(this, input) &&
            direction & input.offsetDirection &&
            input.distance > this.options.threshold &&
            input.maxPointers == this.options.pointers &&
            abs(velocity) > this.options.velocity && input.eventType & INPUT_END;
    },

    emit: function(input) {
        var direction = directionStr(input.offsetDirection);
        if (direction) {
            this.manager.emit(this.options.event + direction, input);
        }

        this.manager.emit(this.options.event, input);
    }
});

/**
 * A tap is ecognized when the pointer is doing a small tap/click. Multiple taps are recognized if they occur
 * between the given interval and position. The delay option can be used to recognize multi-taps without firing
 * a single tap.
 *
 * The eventData from the emitted event contains the property `tapCount`, which contains the amount of
 * multi-taps being recognized.
 * @constructor
 * @extends Recognizer
 */
function TapRecognizer() {
    Recognizer.apply(this, arguments);

    // previous time and center,
    // used for tap counting
    this.pTime = false;
    this.pCenter = false;

    this._timer = null;
    this._input = null;
    this.count = 0;
}

inherit(TapRecognizer, Recognizer, {
    /**
     * @namespace
     * @memberof PinchRecognizer
     */
    defaults: {
        event: 'tap',
        pointers: 1,
        taps: 1,
        interval: 300, // max time between the multi-tap taps
        time: 250, // max time of the pointer to be down (like finger on the screen)
        threshold: 9, // a minimal movement is ok, but keep it low
        posThreshold: 10 // a multi-tap can be a bit off the initial position
    },

    getTouchAction: function() {
        return [TOUCH_ACTION_MANIPULATION];
    },

    process: function(input) {
        var options = this.options;

        var validPointers = input.pointers.length === options.pointers;
        var validMovement = input.distance < options.threshold;
        var validTouchTime = input.deltaTime < options.time;

        this.reset();

        if ((input.eventType & INPUT_START) && (this.count === 0)) {
            return this.failTimeout();
        }

        // we only allow little movement
        // and we've reached an end event, so a tap is possible
        if (validMovement && validTouchTime && validPointers) {
            if (input.eventType != INPUT_END) {
                return this.failTimeout();
            }

            var validInterval = this.pTime ? (input.timeStamp - this.pTime < options.interval) : true;
            var validMultiTap = !this.pCenter || getDistance(this.pCenter, input.center) < options.posThreshold;

            this.pTime = input.timeStamp;
            this.pCenter = input.center;

            if (!validMultiTap || !validInterval) {
                this.count = 1;
            } else {
                this.count += 1;
            }

            this._input = input;

            // if tap count matches we have recognized it,
            // else it has began recognizing...
            var tapCount = this.count % options.taps;
            if (tapCount === 0) {
                // no failing requirements, immediately trigger the tap event
                // or wait as long as the multitap interval to trigger
                if (!this.hasRequireFailures()) {
                    return STATE_RECOGNIZED;
                } else {
                    this._timer = setTimeoutContext(function() {
                        this.state = STATE_RECOGNIZED;
                        this.tryEmit();
                    }, options.interval, this);
                    return STATE_BEGAN;
                }
            }
        }
        return STATE_FAILED;
    },

    failTimeout: function() {
        this._timer = setTimeoutContext(function() {
            this.state = STATE_FAILED;
        }, this.options.interval, this);
        return STATE_FAILED;
    },

    reset: function() {
        clearTimeout(this._timer);
    },

    emit: function() {
        if (this.state == STATE_RECOGNIZED) {
            this._input.tapCount = this.count;
            this.manager.emit(this.options.event, this._input);
        }
    }
});

/**
 * Simple way to create a manager with a default set of recognizers.
 * @param {HTMLElement} element
 * @param {Object} [options]
 * @constructor
 */
function Hammer(element, options) {
    options = options || {};
    options.recognizers = ifUndefined(options.recognizers, Hammer.defaults.preset);
    return new Manager(element, options);
}

/**
 * @const {string}
 */
Hammer.VERSION = '2.0.7';

/**
 * default settings
 * @namespace
 */
Hammer.defaults = {
    /**
     * set if DOM events are being triggered.
     * But this is slower and unused by simple implementations, so disabled by default.
     * @type {Boolean}
     * @default false
     */
    domEvents: false,

    /**
     * The value for the touchAction property/fallback.
     * When set to `compute` it will magically set the correct value based on the added recognizers.
     * @type {String}
     * @default compute
     */
    touchAction: TOUCH_ACTION_COMPUTE,

    /**
     * @type {Boolean}
     * @default true
     */
    enable: true,

    /**
     * EXPERIMENTAL FEATURE -- can be removed/changed
     * Change the parent input target element.
     * If Null, then it is being set the to main element.
     * @type {Null|EventTarget}
     * @default null
     */
    inputTarget: null,

    /**
     * force an input class
     * @type {Null|Function}
     * @default null
     */
    inputClass: null,

    /**
     * Default recognizer setup when calling `Hammer()`
     * When creating a new Manager these will be skipped.
     * @type {Array}
     */
    preset: [
        // RecognizerClass, options, [recognizeWith, ...], [requireFailure, ...]
        [RotateRecognizer, {enable: false}],
        [PinchRecognizer, {enable: false}, ['rotate']],
        [SwipeRecognizer, {direction: DIRECTION_HORIZONTAL}],
        [PanRecognizer, {direction: DIRECTION_HORIZONTAL}, ['swipe']],
        [TapRecognizer],
        [TapRecognizer, {event: 'doubletap', taps: 2}, ['tap']],
        [PressRecognizer]
    ],

    /**
     * Some CSS properties can be used to improve the working of Hammer.
     * Add them to this method and they will be set when creating a new Manager.
     * @namespace
     */
    cssProps: {
        /**
         * Disables text selection to improve the dragging gesture. Mainly for desktop browsers.
         * @type {String}
         * @default 'none'
         */
        userSelect: 'none',

        /**
         * Disable the Windows Phone grippers when pressing an element.
         * @type {String}
         * @default 'none'
         */
        touchSelect: 'none',

        /**
         * Disables the default callout shown when you touch and hold a touch target.
         * On iOS, when you touch and hold a touch target such as a link, Safari displays
         * a callout containing information about the link. This property allows you to disable that callout.
         * @type {String}
         * @default 'none'
         */
        touchCallout: 'none',

        /**
         * Specifies whether zooming is enabled. Used by IE10>
         * @type {String}
         * @default 'none'
         */
        contentZooming: 'none',

        /**
         * Specifies that an entire element should be draggable instead of its contents. Mainly for desktop browsers.
         * @type {String}
         * @default 'none'
         */
        userDrag: 'none',

        /**
         * Overrides the highlight color shown when the user taps a link or a JavaScript
         * clickable element in iOS. This property obeys the alpha value, if specified.
         * @type {String}
         * @default 'rgba(0,0,0,0)'
         */
        tapHighlightColor: 'rgba(0,0,0,0)'
    }
};

var STOP = 1;
var FORCED_STOP = 2;

/**
 * Manager
 * @param {HTMLElement} element
 * @param {Object} [options]
 * @constructor
 */
function Manager(element, options) {
    this.options = assign({}, Hammer.defaults, options || {});

    this.options.inputTarget = this.options.inputTarget || element;

    this.handlers = {};
    this.session = {};
    this.recognizers = [];
    this.oldCssProps = {};

    this.element = element;
    this.input = createInputInstance(this);
    this.touchAction = new TouchAction(this, this.options.touchAction);

    toggleCssProps(this, true);

    each(this.options.recognizers, function(item) {
        var recognizer = this.add(new (item[0])(item[1]));
        item[2] && recognizer.recognizeWith(item[2]);
        item[3] && recognizer.requireFailure(item[3]);
    }, this);
}

Manager.prototype = {
    /**
     * set options
     * @param {Object} options
     * @returns {Manager}
     */
    set: function(options) {
        assign(this.options, options);

        // Options that need a little more setup
        if (options.touchAction) {
            this.touchAction.update();
        }
        if (options.inputTarget) {
            // Clean up existing event listeners and reinitialize
            this.input.destroy();
            this.input.target = options.inputTarget;
            this.input.init();
        }
        return this;
    },

    /**
     * stop recognizing for this session.
     * This session will be discarded, when a new [input]start event is fired.
     * When forced, the recognizer cycle is stopped immediately.
     * @param {Boolean} [force]
     */
    stop: function(force) {
        this.session.stopped = force ? FORCED_STOP : STOP;
    },

    /**
     * run the recognizers!
     * called by the inputHandler function on every movement of the pointers (touches)
     * it walks through all the recognizers and tries to detect the gesture that is being made
     * @param {Object} inputData
     */
    recognize: function(inputData) {
        var session = this.session;
        if (session.stopped) {
            return;
        }

        // run the touch-action polyfill
        this.touchAction.preventDefaults(inputData);

        var recognizer;
        var recognizers = this.recognizers;

        // this holds the recognizer that is being recognized.
        // so the recognizer's state needs to be BEGAN, CHANGED, ENDED or RECOGNIZED
        // if no recognizer is detecting a thing, it is set to `null`
        var curRecognizer = session.curRecognizer;

        // reset when the last recognizer is recognized
        // or when we're in a new session
        if (!curRecognizer || (curRecognizer && curRecognizer.state & STATE_RECOGNIZED)) {
            curRecognizer = session.curRecognizer = null;
        }

        var i = 0;
        while (i < recognizers.length) {
            recognizer = recognizers[i];

            // find out if we are allowed try to recognize the input for this one.
            // 1.   allow if the session is NOT forced stopped (see the .stop() method)
            // 2.   allow if we still haven't recognized a gesture in this session, or the this recognizer is the one
            //      that is being recognized.
            // 3.   allow if the recognizer is allowed to run simultaneous with the current recognized recognizer.
            //      this can be setup with the `recognizeWith()` method on the recognizer.
            if (session.stopped !== FORCED_STOP && ( // 1
                    !curRecognizer || recognizer == curRecognizer || // 2
                    recognizer.canRecognizeWith(curRecognizer))) { // 3
                recognizer.recognize(inputData);
            } else {
                recognizer.reset();
            }

            // if the recognizer has been recognizing the input as a valid gesture, we want to store this one as the
            // current active recognizer. but only if we don't already have an active recognizer
            if (!curRecognizer && recognizer.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED)) {
                curRecognizer = session.curRecognizer = recognizer;
            }
            i++;
        }
    },

    /**
     * get a recognizer by its event name.
     * @param {Recognizer|String} recognizer
     * @returns {Recognizer|Null}
     */
    get: function(recognizer) {
        if (recognizer instanceof Recognizer) {
            return recognizer;
        }

        var recognizers = this.recognizers;
        for (var i = 0; i < recognizers.length; i++) {
            if (recognizers[i].options.event == recognizer) {
                return recognizers[i];
            }
        }
        return null;
    },

    /**
     * add a recognizer to the manager
     * existing recognizers with the same event name will be removed
     * @param {Recognizer} recognizer
     * @returns {Recognizer|Manager}
     */
    add: function(recognizer) {
        if (invokeArrayArg(recognizer, 'add', this)) {
            return this;
        }

        // remove existing
        var existing = this.get(recognizer.options.event);
        if (existing) {
            this.remove(existing);
        }

        this.recognizers.push(recognizer);
        recognizer.manager = this;

        this.touchAction.update();
        return recognizer;
    },

    /**
     * remove a recognizer by name or instance
     * @param {Recognizer|String} recognizer
     * @returns {Manager}
     */
    remove: function(recognizer) {
        if (invokeArrayArg(recognizer, 'remove', this)) {
            return this;
        }

        recognizer = this.get(recognizer);

        // let's make sure this recognizer exists
        if (recognizer) {
            var recognizers = this.recognizers;
            var index = inArray(recognizers, recognizer);

            if (index !== -1) {
                recognizers.splice(index, 1);
                this.touchAction.update();
            }
        }

        return this;
    },

    /**
     * bind event
     * @param {String} events
     * @param {Function} handler
     * @returns {EventEmitter} this
     */
    on: function(events, handler) {
        if (events === undefined) {
            return;
        }
        if (handler === undefined) {
            return;
        }

        var handlers = this.handlers;
        each(splitStr(events), function(event) {
            handlers[event] = handlers[event] || [];
            handlers[event].push(handler);
        });
        return this;
    },

    /**
     * unbind event, leave emit blank to remove all handlers
     * @param {String} events
     * @param {Function} [handler]
     * @returns {EventEmitter} this
     */
    off: function(events, handler) {
        if (events === undefined) {
            return;
        }

        var handlers = this.handlers;
        each(splitStr(events), function(event) {
            if (!handler) {
                delete handlers[event];
            } else {
                handlers[event] && handlers[event].splice(inArray(handlers[event], handler), 1);
            }
        });
        return this;
    },

    /**
     * emit event to the listeners
     * @param {String} event
     * @param {Object} data
     */
    emit: function(event, data) {
        // we also want to trigger dom events
        if (this.options.domEvents) {
            triggerDomEvent(event, data);
        }

        // no handlers, so skip it all
        var handlers = this.handlers[event] && this.handlers[event].slice();
        if (!handlers || !handlers.length) {
            return;
        }

        data.type = event;
        data.preventDefault = function() {
            data.srcEvent.preventDefault();
        };

        var i = 0;
        while (i < handlers.length) {
            handlers[i](data);
            i++;
        }
    },

    /**
     * destroy the manager and unbinds all events
     * it doesn't unbind dom events, that is the user own responsibility
     */
    destroy: function() {
        this.element && toggleCssProps(this, false);

        this.handlers = {};
        this.session = {};
        this.input.destroy();
        this.element = null;
    }
};

/**
 * add/remove the css properties as defined in manager.options.cssProps
 * @param {Manager} manager
 * @param {Boolean} add
 */
function toggleCssProps(manager, add) {
    var element = manager.element;
    if (!element.style) {
        return;
    }
    var prop;
    each(manager.options.cssProps, function(value, name) {
        prop = prefixed(element.style, name);
        if (add) {
            manager.oldCssProps[prop] = element.style[prop];
            element.style[prop] = value;
        } else {
            element.style[prop] = manager.oldCssProps[prop] || '';
        }
    });
    if (!add) {
        manager.oldCssProps = {};
    }
}

/**
 * trigger dom event
 * @param {String} event
 * @param {Object} data
 */
function triggerDomEvent(event, data) {
    var gestureEvent = document.createEvent('Event');
    gestureEvent.initEvent(event, true, true);
    gestureEvent.gesture = data;
    data.target.dispatchEvent(gestureEvent);
}

assign(Hammer, {
    INPUT_START: INPUT_START,
    INPUT_MOVE: INPUT_MOVE,
    INPUT_END: INPUT_END,
    INPUT_CANCEL: INPUT_CANCEL,

    STATE_POSSIBLE: STATE_POSSIBLE,
    STATE_BEGAN: STATE_BEGAN,
    STATE_CHANGED: STATE_CHANGED,
    STATE_ENDED: STATE_ENDED,
    STATE_RECOGNIZED: STATE_RECOGNIZED,
    STATE_CANCELLED: STATE_CANCELLED,
    STATE_FAILED: STATE_FAILED,

    DIRECTION_NONE: DIRECTION_NONE,
    DIRECTION_LEFT: DIRECTION_LEFT,
    DIRECTION_RIGHT: DIRECTION_RIGHT,
    DIRECTION_UP: DIRECTION_UP,
    DIRECTION_DOWN: DIRECTION_DOWN,
    DIRECTION_HORIZONTAL: DIRECTION_HORIZONTAL,
    DIRECTION_VERTICAL: DIRECTION_VERTICAL,
    DIRECTION_ALL: DIRECTION_ALL,

    Manager: Manager,
    Input: Input,
    TouchAction: TouchAction,

    TouchInput: TouchInput,
    MouseInput: MouseInput,
    PointerEventInput: PointerEventInput,
    TouchMouseInput: TouchMouseInput,
    SingleTouchInput: SingleTouchInput,

    Recognizer: Recognizer,
    AttrRecognizer: AttrRecognizer,
    Tap: TapRecognizer,
    Pan: PanRecognizer,
    Swipe: SwipeRecognizer,
    Pinch: PinchRecognizer,
    Rotate: RotateRecognizer,
    Press: PressRecognizer,

    on: addEventListeners,
    off: removeEventListeners,
    each: each,
    merge: merge,
    extend: extend,
    assign: assign,
    inherit: inherit,
    bindFn: bindFn,
    prefixed: prefixed
});

// this prevents errors when Hammer is loaded in the presence of an AMD
//  style loader but by script tag, not by the loader.
var freeGlobal = (typeof window !== 'undefined' ? window : (typeof self !== 'undefined' ? self : {})); // jshint ignore:line
freeGlobal.Hammer = Hammer;

if (true) {
    !(__WEBPACK_AMD_DEFINE_RESULT__ = function() {
        return Hammer;
    }.call(exports, __webpack_require__, exports, module),
				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
} else if (typeof module != 'undefined' && module.exports) {
    module.exports = Hammer;
} else {
    window[exportName] = Hammer;
}

})(window, document, 'Hammer');


/***/ }),
/* 177 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


// utils
exports.util = __webpack_require__(2);
exports.DOMutil = __webpack_require__(14);

// data
exports.DataSet = __webpack_require__(11);
exports.DataView = __webpack_require__(12);
exports.Queue = __webpack_require__(43);

// Timeline
exports.Timeline = __webpack_require__(178);
exports.Graph2d = __webpack_require__(180);
exports.timeline = {
  Core: __webpack_require__(65),
  DateUtil: __webpack_require__(36),
  Range: __webpack_require__(64),
  stack: __webpack_require__(100),
  TimeStep: __webpack_require__(66),

  components: {
    items: {
      Item: __webpack_require__(38),
      BackgroundItem: __webpack_require__(103),
      BoxItem: __webpack_require__(101),
      PointItem: __webpack_require__(102),
      RangeItem: __webpack_require__(70)
    },

    BackgroundGroup: __webpack_require__(69),
    Component: __webpack_require__(16),
    CurrentTime: __webpack_require__(67),
    CustomTime: __webpack_require__(46),
    DataAxis: __webpack_require__(107),
    DataScale: __webpack_require__(108),
    GraphGroup: __webpack_require__(109),
    Group: __webpack_require__(68),
    ItemSet: __webpack_require__(99),
    Legend: __webpack_require__(112),
    LineGraph: __webpack_require__(106),
    TimeAxis: __webpack_require__(45)
  }
};

// bundled external libraries
exports.moment = __webpack_require__(9);
exports.Hammer = __webpack_require__(10);
exports.keycharm = __webpack_require__(35);

/***/ }),
/* 178 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var moment = __webpack_require__(9);
var util = __webpack_require__(2);
var DataSet = __webpack_require__(11);
var DataView = __webpack_require__(12);
var Range = __webpack_require__(64);
var Core = __webpack_require__(65);
var TimeAxis = __webpack_require__(45);
var CurrentTime = __webpack_require__(67);
var CustomTime = __webpack_require__(46);
var ItemSet = __webpack_require__(99);

var printStyle = __webpack_require__(15).printStyle;
var allOptions = __webpack_require__(105).allOptions;
var configureOptions = __webpack_require__(105).configureOptions;

var Configurator = __webpack_require__(71)['default'];
var Validator = __webpack_require__(15)['default'];

/**
 * Create a timeline visualization
 * @param {HTMLElement} container
 * @param {vis.DataSet | vis.DataView | Array} [items]
 * @param {vis.DataSet | vis.DataView | Array} [groups]
 * @param {Object} [options]  See Timeline.setOptions for the available options.
 * @constructor Timeline
 * @extends Core
 */
function Timeline(container, items, groups, options) {

  if (!(this instanceof Timeline)) {
    throw new SyntaxError('Constructor must be called with the new operator');
  }

  // if the third element is options, the forth is groups (optionally);
  if (!(Array.isArray(groups) || groups instanceof DataSet || groups instanceof DataView) && groups instanceof Object) {
    var forthArgument = options;
    options = groups;
    groups = forthArgument;
  }

  // TODO: REMOVE THIS in the next MAJOR release
  // see https://github.com/almende/vis/issues/2511
  if (options && options.throttleRedraw) {
    console.warn("Timeline option \"throttleRedraw\" is DEPRICATED and no longer supported. It will be removed in the next MAJOR release.");
  }

  var me = this;
  this.defaultOptions = {
    start: null,
    end: null,
    autoResize: true,
    orientation: {
      axis: 'bottom', // axis orientation: 'bottom', 'top', or 'both'
      item: 'bottom' // not relevant
    },
    moment: moment,
    width: null,
    height: null,
    maxHeight: null,
    minHeight: null
  };
  this.options = util.deepExtend({}, this.defaultOptions);

  // Create the DOM, props, and emitter
  this._create(container);
  if (!options || options && typeof options.rtl == "undefined") {
    this.dom.root.style.visibility = 'hidden';
    var directionFromDom,
        domNode = this.dom.root;
    while (!directionFromDom && domNode) {
      directionFromDom = window.getComputedStyle(domNode, null).direction;
      domNode = domNode.parentElement;
    }
    this.options.rtl = directionFromDom && directionFromDom.toLowerCase() == "rtl";
  } else {
    this.options.rtl = options.rtl;
  }

  this.options.rollingMode = options && options.rollingMode;
  this.options.onInitialDrawComplete = options && options.onInitialDrawComplete;

  // all components listed here will be repainted automatically
  this.components = [];

  this.body = {
    dom: this.dom,
    domProps: this.props,
    emitter: {
      on: this.on.bind(this),
      off: this.off.bind(this),
      emit: this.emit.bind(this)
    },
    hiddenDates: [],
    util: {
      getScale: function getScale() {
        return me.timeAxis.step.scale;
      },
      getStep: function getStep() {
        return me.timeAxis.step.step;
      },

      toScreen: me._toScreen.bind(me),
      toGlobalScreen: me._toGlobalScreen.bind(me), // this refers to the root.width
      toTime: me._toTime.bind(me),
      toGlobalTime: me._toGlobalTime.bind(me)
    }
  };

  // range
  this.range = new Range(this.body, this.options);
  this.components.push(this.range);
  this.body.range = this.range;

  // time axis
  this.timeAxis = new TimeAxis(this.body, this.options);
  this.timeAxis2 = null; // used in case of orientation option 'both'
  this.components.push(this.timeAxis);

  // current time bar
  this.currentTime = new CurrentTime(this.body, this.options);
  this.components.push(this.currentTime);

  // item set
  this.itemSet = new ItemSet(this.body, this.options);
  this.components.push(this.itemSet);

  this.itemsData = null; // DataSet
  this.groupsData = null; // DataSet

  this.dom.root.onclick = function (event) {
    me.emit('click', me.getEventProperties(event));
  };
  this.dom.root.ondblclick = function (event) {
    me.emit('doubleClick', me.getEventProperties(event));
  };
  this.dom.root.oncontextmenu = function (event) {
    me.emit('contextmenu', me.getEventProperties(event));
  };
  this.dom.root.onmouseover = function (event) {
    me.emit('mouseOver', me.getEventProperties(event));
  };
  if (window.PointerEvent) {
    this.dom.root.onpointerdown = function (event) {
      me.emit('mouseDown', me.getEventProperties(event));
    };
    this.dom.root.onpointermove = function (event) {
      me.emit('mouseMove', me.getEventProperties(event));
    };
    this.dom.root.onpointerup = function (event) {
      me.emit('mouseUp', me.getEventProperties(event));
    };
  } else {
    this.dom.root.onmousemove = function (event) {
      me.emit('mouseMove', me.getEventProperties(event));
    };
    this.dom.root.onmousedown = function (event) {
      me.emit('mouseDown', me.getEventProperties(event));
    };
    this.dom.root.onmouseup = function (event) {
      me.emit('mouseUp', me.getEventProperties(event));
    };
  }

  //Single time autoscale/fit
  this.initialFitDone = false;
  this.on('changed', function () {
    if (this.itemsData == null || this.options.rollingMode) return;
    if (!me.initialFitDone) {
      me.initialFitDone = true;
      if (me.options.start != undefined || me.options.end != undefined) {
        if (me.options.start == undefined || me.options.end == undefined) {
          var range = me.getItemRange();
        }

        var start = me.options.start != undefined ? me.options.start : range.min;
        var end = me.options.end != undefined ? me.options.end : range.max;
        me.setWindow(start, end, { animation: false });
      } else {
        me.fit({ animation: false });
      }
    }

    if (!me.initialDrawDone && me.initialRangeChangeDone) {
      me.initialDrawDone = true;
      me.dom.root.style.visibility = 'visible';
      if (me.options.onInitialDrawComplete) {
        setTimeout(function () {
          return me.options.onInitialDrawComplete();
        }, 0);
      }
    }
  });

  // apply options
  if (options) {
    this.setOptions(options);
  }

  // IMPORTANT: THIS HAPPENS BEFORE SET ITEMS!
  if (groups) {
    this.setGroups(groups);
  }

  // create itemset
  if (items) {
    this.setItems(items);
  }

  // draw for the first time
  this._redraw();
}

// Extend the functionality from Core
Timeline.prototype = new Core();

/**
 * Load a configurator
 * @return {Object}
 * @private
 */
Timeline.prototype._createConfigurator = function () {
  return new Configurator(this, this.dom.container, configureOptions);
};

/**
 * Force a redraw. The size of all items will be recalculated.
 * Can be useful to manually redraw when option autoResize=false and the window
 * has been resized, or when the items CSS has been changed.
 *
 * Note: this function will be overridden on construction with a trottled version
 */
Timeline.prototype.redraw = function () {
  this.itemSet && this.itemSet.markDirty({ refreshItems: true });
  this._redraw();
};

Timeline.prototype.setOptions = function (options) {
  // validate options
  var errorFound = Validator.validate(options, allOptions);

  if (errorFound === true) {
    console.log('%cErrors have been found in the supplied options object.', printStyle);
  }
  Core.prototype.setOptions.call(this, options);

  if ('type' in options) {
    if (options.type !== this.options.type) {
      this.options.type = options.type;

      // force recreation of all items
      var itemsData = this.itemsData;
      if (itemsData) {
        var selection = this.getSelection();
        this.setItems(null); // remove all
        this.setItems(itemsData); // add all
        this.setSelection(selection); // restore selection
      }
    }
  }
};

/**
 * Set items
 * @param {vis.DataSet | Array | null} items
 */
Timeline.prototype.setItems = function (items) {
  // convert to type DataSet when needed
  var newDataSet;
  if (!items) {
    newDataSet = null;
  } else if (items instanceof DataSet || items instanceof DataView) {
    newDataSet = items;
  } else {
    // turn an array into a dataset
    newDataSet = new DataSet(items, {
      type: {
        start: 'Date',
        end: 'Date'
      }
    });
  }

  // set items
  this.itemsData = newDataSet;
  this.itemSet && this.itemSet.setItems(newDataSet);
};

/**
 * Set groups
 * @param {vis.DataSet | Array} groups
 */
Timeline.prototype.setGroups = function (groups) {
  // convert to type DataSet when needed
  var newDataSet;
  if (!groups) {
    newDataSet = null;
  } else {
    var filter = function filter(group) {
      return group.visible !== false;
    };
    if (groups instanceof DataSet || groups instanceof DataView) {
      newDataSet = new DataView(groups, { filter: filter });
    } else {
      // turn an array into a dataset
      newDataSet = new DataSet(groups.filter(filter));
    }
  }

  this.groupsData = newDataSet;
  this.itemSet.setGroups(newDataSet);
};

/**
 * Set both items and groups in one go
 * @param {{items: (Array | vis.DataSet), groups: (Array | vis.DataSet)}} data
 */
Timeline.prototype.setData = function (data) {
  if (data && data.groups) {
    this.setGroups(data.groups);
  }

  if (data && data.items) {
    this.setItems(data.items);
  }
};

/**
 * Set selected items by their id. Replaces the current selection
 * Unknown id's are silently ignored.
 * @param {string[] | string} [ids]  An array with zero or more id's of the items to be
 *                                selected. If ids is an empty array, all items will be
 *                                unselected.
 * @param {Object} [options]      Available options:
 *                                `focus: boolean`
 *                                    If true, focus will be set to the selected item(s)
 *                                `animation: boolean | {duration: number, easingFunction: string}`
 *                                    If true (default), the range is animated
 *                                    smoothly to the new window. An object can be
 *                                    provided to specify duration and easing function.
 *                                    Default duration is 500 ms, and default easing
 *                                    function is 'easeInOutQuad'.
 *                                    Only applicable when option focus is true.
 */
Timeline.prototype.setSelection = function (ids, options) {
  this.itemSet && this.itemSet.setSelection(ids);

  if (options && options.focus) {
    this.focus(ids, options);
  }
};

/**
 * Get the selected items by their id
 * @return {Array} ids  The ids of the selected items
 */
Timeline.prototype.getSelection = function () {
  return this.itemSet && this.itemSet.getSelection() || [];
};

/**
 * Adjust the visible window such that the selected item (or multiple items)
 * are centered on screen.
 * @param {string | String[]} id     An item id or array with item ids
 * @param {Object} [options]      Available options:
 *                                `animation: boolean | {duration: number, easingFunction: string}`
 *                                    If true (default), the range is animated
 *                                    smoothly to the new window. An object can be
 *                                    provided to specify duration and easing function.
 *                                    Default duration is 500 ms, and default easing
 *                                    function is 'easeInOutQuad'.
 */
Timeline.prototype.focus = function (id, options) {
  if (!this.itemsData || id == undefined) return;

  var ids = Array.isArray(id) ? id : [id];

  // get the specified item(s)
  var itemsData = this.itemsData.getDataSet().get(ids, {
    type: {
      start: 'Date',
      end: 'Date'
    }
  });

  // calculate minimum start and maximum end of specified items
  var start = null;
  var end = null;
  itemsData.forEach(function (itemData) {
    var s = itemData.start.valueOf();
    var e = 'end' in itemData ? itemData.end.valueOf() : itemData.start.valueOf();

    if (start === null || s < start) {
      start = s;
    }

    if (end === null || e > end) {
      end = e;
    }
  });

  if (start !== null && end !== null) {
    var me = this;
    // Use the first item for the vertical focus
    var item = this.itemSet.items[ids[0]];
    var startPos = this._getScrollTop() * -1;
    var initialVerticalScroll = null;

    // Setup a handler for each frame of the vertical scroll
    var verticalAnimationFrame = function verticalAnimationFrame(ease, willDraw, done) {
      var verticalScroll = getItemVerticalScroll(me, item);

      if (!initialVerticalScroll) {
        initialVerticalScroll = verticalScroll;
      }

      if (initialVerticalScroll.itemTop == verticalScroll.itemTop && !initialVerticalScroll.shouldScroll) {
        return; // We don't need to scroll, so do nothing
      } else if (initialVerticalScroll.itemTop != verticalScroll.itemTop && verticalScroll.shouldScroll) {
        // The redraw shifted elements, so reset the animation to correct
        initialVerticalScroll = verticalScroll;
        startPos = me._getScrollTop() * -1;
      }

      var from = startPos;
      var to = initialVerticalScroll.scrollOffset;
      var scrollTop = done ? to : from + (to - from) * ease;

      me._setScrollTop(-scrollTop);

      if (!willDraw) {
        me._redraw();
      }
    };

    // Enforces the final vertical scroll position
    var setFinalVerticalPosition = function setFinalVerticalPosition() {
      var finalVerticalScroll = getItemVerticalScroll(me, item);

      if (finalVerticalScroll.shouldScroll && finalVerticalScroll.itemTop != initialVerticalScroll.itemTop) {
        me._setScrollTop(-finalVerticalScroll.scrollOffset);
        me._redraw();
      }
    };

    // Perform one last check at the end to make sure the final vertical
    // position is correct
    var finalVerticalCallback = function finalVerticalCallback() {
      // Double check we ended at the proper scroll position
      setFinalVerticalPosition();

      // Let the redraw settle and finalize the position.      
      setTimeout(setFinalVerticalPosition, 100);
    };

    // calculate the new middle and interval for the window
    var middle = (start + end) / 2;
    var interval = Math.max(this.range.end - this.range.start, (end - start) * 1.1);

    var animation = options && options.animation !== undefined ? options.animation : true;

    if (!animation) {
      // We aren't animating so set a default so that the final callback forces the vertical location
      initialVerticalScroll = { shouldScroll: false, scrollOffset: -1, itemTop: -1 };
    }

    this.range.setRange(middle - interval / 2, middle + interval / 2, { animation: animation }, finalVerticalCallback, verticalAnimationFrame);
  }
};

/**
 * Set Timeline window such that it fits all items
 * @param {Object} [options]  Available options:
 *                                `animation: boolean | {duration: number, easingFunction: string}`
 *                                    If true (default), the range is animated
 *                                    smoothly to the new window. An object can be
 *                                    provided to specify duration and easing function.
 *                                    Default duration is 500 ms, and default easing
 *                                    function is 'easeInOutQuad'.
 * @param {function} [callback]
 */
Timeline.prototype.fit = function (options, callback) {
  var animation = options && options.animation !== undefined ? options.animation : true;
  var range;

  var dataset = this.itemsData && this.itemsData.getDataSet();
  if (dataset.length === 1 && dataset.get()[0].end === undefined) {
    // a single item -> don't fit, just show a range around the item from -4 to +3 days
    range = this.getDataRange();
    this.moveTo(range.min.valueOf(), { animation: animation }, callback);
  } else {
    // exactly fit the items (plus a small margin)
    range = this.getItemRange();
    this.range.setRange(range.min, range.max, { animation: animation }, callback);
  }
};

/**
 *
 * @param {vis.Item} item
 * @returns {number}
 */
function getStart(item) {
  return util.convert(item.data.start, 'Date').valueOf();
}

/**
 *
 * @param {vis.Item} item
 * @returns {number}
 */
function getEnd(item) {
  var end = item.data.end != undefined ? item.data.end : item.data.start;
  return util.convert(end, 'Date').valueOf();
}

/**
 * @param {vis.Timeline} timeline
 * @param {vis.Item} item
 * @return {{shouldScroll: bool, scrollOffset: number, itemTop: number}}
 */
function getItemVerticalScroll(timeline, item) {
  var leftHeight = timeline.props.leftContainer.height;
  var contentHeight = timeline.props.left.height;

  var group = item.parent;
  var offset = group.top;
  var shouldScroll = true;
  var orientation = timeline.timeAxis.options.orientation.axis;

  var itemTop = function itemTop() {
    if (orientation == "bottom") {
      return group.height - item.top - item.height;
    } else {
      return item.top;
    }
  };

  var currentScrollHeight = timeline._getScrollTop() * -1;
  var targetOffset = offset + itemTop();
  var height = item.height;

  if (targetOffset < currentScrollHeight) {
    if (offset + leftHeight <= offset + itemTop() + height) {
      offset += itemTop() - timeline.itemSet.options.margin.item.vertical;
    }
  } else if (targetOffset + height > currentScrollHeight + leftHeight) {
    offset += itemTop() + height - leftHeight + timeline.itemSet.options.margin.item.vertical;
  } else {
    shouldScroll = false;
  }

  offset = Math.min(offset, contentHeight - leftHeight);

  return { shouldScroll: shouldScroll, scrollOffset: offset, itemTop: targetOffset };
}

/**
 * Determine the range of the items, taking into account their actual width
 * and a margin of 10 pixels on both sides.
 *
 * @returns {{min: Date, max: Date}}
 */
Timeline.prototype.getItemRange = function () {
  // get a rough approximation for the range based on the items start and end dates
  var range = this.getDataRange();
  var min = range.min !== null ? range.min.valueOf() : null;
  var max = range.max !== null ? range.max.valueOf() : null;
  var minItem = null;
  var maxItem = null;

  if (min != null && max != null) {
    var interval = max - min; // ms
    if (interval <= 0) {
      interval = 10;
    }
    var factor = interval / this.props.center.width;

    var redrawQueue = {};
    var redrawQueueLength = 0;

    // collect redraw functions
    util.forEach(this.itemSet.items, function (item, key) {
      if (item.groupShowing) {
        var returnQueue = true;
        redrawQueue[key] = item.redraw(returnQueue);
        redrawQueueLength = redrawQueue[key].length;
      }
    });

    var needRedraw = redrawQueueLength > 0;
    if (needRedraw) {
      // redraw all regular items
      for (var i = 0; i < redrawQueueLength; i++) {
        util.forEach(redrawQueue, function (fns) {
          fns[i]();
        });
      }
    }

    // calculate the date of the left side and right side of the items given
    util.forEach(this.itemSet.items, function (item) {
      var start = getStart(item);
      var end = getEnd(item);
      var startSide;
      var endSide;

      if (this.options.rtl) {
        startSide = start - (item.getWidthRight() + 10) * factor;
        endSide = end + (item.getWidthLeft() + 10) * factor;
      } else {
        startSide = start - (item.getWidthLeft() + 10) * factor;
        endSide = end + (item.getWidthRight() + 10) * factor;
      }

      if (startSide < min) {
        min = startSide;
        minItem = item;
      }
      if (endSide > max) {
        max = endSide;
        maxItem = item;
      }
    }.bind(this));

    if (minItem && maxItem) {
      var lhs = minItem.getWidthLeft() + 10;
      var rhs = maxItem.getWidthRight() + 10;
      var delta = this.props.center.width - lhs - rhs; // px

      if (delta > 0) {
        if (this.options.rtl) {
          min = getStart(minItem) - rhs * interval / delta; // ms
          max = getEnd(maxItem) + lhs * interval / delta; // ms
        } else {
          min = getStart(minItem) - lhs * interval / delta; // ms
          max = getEnd(maxItem) + rhs * interval / delta; // ms
        }
      }
    }
  }

  return {
    min: min != null ? new Date(min) : null,
    max: max != null ? new Date(max) : null
  };
};

/**
 * Calculate the data range of the items start and end dates
 * @returns {{min: Date, max: Date}}
 */
Timeline.prototype.getDataRange = function () {
  var min = null;
  var max = null;

  var dataset = this.itemsData && this.itemsData.getDataSet();
  if (dataset) {
    dataset.forEach(function (item) {
      var start = util.convert(item.start, 'Date').valueOf();
      var end = util.convert(item.end != undefined ? item.end : item.start, 'Date').valueOf();
      if (min === null || start < min) {
        min = start;
      }
      if (max === null || end > max) {
        max = end;
      }
    });
  }

  return {
    min: min != null ? new Date(min) : null,
    max: max != null ? new Date(max) : null
  };
};

/**
 * Generate Timeline related information from an event
 * @param {Event} event
 * @return {Object} An object with related information, like on which area
 *                  The event happened, whether clicked on an item, etc.
 */
Timeline.prototype.getEventProperties = function (event) {
  var clientX = event.center ? event.center.x : event.clientX;
  var clientY = event.center ? event.center.y : event.clientY;
  var x;
  if (this.options.rtl) {
    x = util.getAbsoluteRight(this.dom.centerContainer) - clientX;
  } else {
    x = clientX - util.getAbsoluteLeft(this.dom.centerContainer);
  }
  var y = clientY - util.getAbsoluteTop(this.dom.centerContainer);

  var item = this.itemSet.itemFromTarget(event);
  var group = this.itemSet.groupFromTarget(event);
  var customTime = CustomTime.customTimeFromTarget(event);

  var snap = this.itemSet.options.snap || null;
  var scale = this.body.util.getScale();
  var step = this.body.util.getStep();
  var time = this._toTime(x);
  var snappedTime = snap ? snap(time, scale, step) : time;

  var element = util.getTarget(event);
  var what = null;
  if (item != null) {
    what = 'item';
  } else if (customTime != null) {
    what = 'custom-time';
  } else if (util.hasParent(element, this.timeAxis.dom.foreground)) {
    what = 'axis';
  } else if (this.timeAxis2 && util.hasParent(element, this.timeAxis2.dom.foreground)) {
    what = 'axis';
  } else if (util.hasParent(element, this.itemSet.dom.labelSet)) {
    what = 'group-label';
  } else if (util.hasParent(element, this.currentTime.bar)) {
    what = 'current-time';
  } else if (util.hasParent(element, this.dom.center)) {
    what = 'background';
  }

  return {
    event: event,
    item: item ? item.id : null,
    group: group ? group.groupId : null,
    what: what,
    pageX: event.srcEvent ? event.srcEvent.pageX : event.pageX,
    pageY: event.srcEvent ? event.srcEvent.pageY : event.pageY,
    x: x,
    y: y,
    time: time,
    snappedTime: snappedTime
  };
};

/**
 * Toggle Timeline rolling mode
 */

Timeline.prototype.toggleRollingMode = function () {
  if (this.range.rolling) {
    this.range.stopRolling();
  } else {
    if (this.options.rollingMode == undefined) {
      this.setOptions(this.options);
    }
    this.range.startRolling();
  }
};

module.exports = Timeline;

/***/ }),
/* 179 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _stringify = __webpack_require__(19);

var _stringify2 = _interopRequireDefault(_stringify);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var Hammer = __webpack_require__(10);
var hammerUtil = __webpack_require__(37);
var util = __webpack_require__(2);

/**
 * @param {number} [pixelRatio=1]
 */

var ColorPicker = function () {
  /**
   * @param {number} [pixelRatio=1]
   */
  function ColorPicker() {
    var pixelRatio = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;
    (0, _classCallCheck3['default'])(this, ColorPicker);

    this.pixelRatio = pixelRatio;
    this.generated = false;
    this.centerCoordinates = { x: 289 / 2, y: 289 / 2 };
    this.r = 289 * 0.49;
    this.color = { r: 255, g: 255, b: 255, a: 1.0 };
    this.hueCircle = undefined;
    this.initialColor = { r: 255, g: 255, b: 255, a: 1.0 };
    this.previousColor = undefined;
    this.applied = false;

    // bound by
    this.updateCallback = function () {};
    this.closeCallback = function () {};

    // create all DOM elements
    this._create();
  }

  /**
   * this inserts the colorPicker into a div from the DOM
   * @param {Element} container
   */


  (0, _createClass3['default'])(ColorPicker, [{
    key: 'insertTo',
    value: function insertTo(container) {
      if (this.hammer !== undefined) {
        this.hammer.destroy();
        this.hammer = undefined;
      }
      this.container = container;
      this.container.appendChild(this.frame);
      this._bindHammer();

      this._setSize();
    }

    /**
     * the callback is executed on apply and save. Bind it to the application
     * @param {function} callback
     */

  }, {
    key: 'setUpdateCallback',
    value: function setUpdateCallback(callback) {
      if (typeof callback === 'function') {
        this.updateCallback = callback;
      } else {
        throw new Error("Function attempted to set as colorPicker update callback is not a function.");
      }
    }

    /**
     * the callback is executed on apply and save. Bind it to the application
     * @param {function} callback
     */

  }, {
    key: 'setCloseCallback',
    value: function setCloseCallback(callback) {
      if (typeof callback === 'function') {
        this.closeCallback = callback;
      } else {
        throw new Error("Function attempted to set as colorPicker closing callback is not a function.");
      }
    }

    /**
     *
     * @param {string} color
     * @returns {String}
     * @private
     */

  }, {
    key: '_isColorString',
    value: function _isColorString(color) {
      var htmlColors = { black: '#000000', navy: '#000080', darkblue: '#00008B', mediumblue: '#0000CD', blue: '#0000FF', darkgreen: '#006400', green: '#008000', teal: '#008080', darkcyan: '#008B8B', deepskyblue: '#00BFFF', darkturquoise: '#00CED1', mediumspringgreen: '#00FA9A', lime: '#00FF00', springgreen: '#00FF7F', aqua: '#00FFFF', cyan: '#00FFFF', midnightblue: '#191970', dodgerblue: '#1E90FF', lightseagreen: '#20B2AA', forestgreen: '#228B22', seagreen: '#2E8B57', darkslategray: '#2F4F4F', limegreen: '#32CD32', mediumseagreen: '#3CB371', turquoise: '#40E0D0', royalblue: '#4169E1', steelblue: '#4682B4', darkslateblue: '#483D8B', mediumturquoise: '#48D1CC', indigo: '#4B0082', darkolivegreen: '#556B2F', cadetblue: '#5F9EA0', cornflowerblue: '#6495ED', mediumaquamarine: '#66CDAA', dimgray: '#696969', slateblue: '#6A5ACD', olivedrab: '#6B8E23', slategray: '#708090', lightslategray: '#778899', mediumslateblue: '#7B68EE', lawngreen: '#7CFC00', chartreuse: '#7FFF00', aquamarine: '#7FFFD4', maroon: '#800000', purple: '#800080', olive: '#808000', gray: '#808080', skyblue: '#87CEEB', lightskyblue: '#87CEFA', blueviolet: '#8A2BE2', darkred: '#8B0000', darkmagenta: '#8B008B', saddlebrown: '#8B4513', darkseagreen: '#8FBC8F', lightgreen: '#90EE90', mediumpurple: '#9370D8', darkviolet: '#9400D3', palegreen: '#98FB98', darkorchid: '#9932CC', yellowgreen: '#9ACD32', sienna: '#A0522D', brown: '#A52A2A', darkgray: '#A9A9A9', lightblue: '#ADD8E6', greenyellow: '#ADFF2F', paleturquoise: '#AFEEEE', lightsteelblue: '#B0C4DE', powderblue: '#B0E0E6', firebrick: '#B22222', darkgoldenrod: '#B8860B', mediumorchid: '#BA55D3', rosybrown: '#BC8F8F', darkkhaki: '#BDB76B', silver: '#C0C0C0', mediumvioletred: '#C71585', indianred: '#CD5C5C', peru: '#CD853F', chocolate: '#D2691E', tan: '#D2B48C', lightgrey: '#D3D3D3', palevioletred: '#D87093', thistle: '#D8BFD8', orchid: '#DA70D6', goldenrod: '#DAA520', crimson: '#DC143C', gainsboro: '#DCDCDC', plum: '#DDA0DD', burlywood: '#DEB887', lightcyan: '#E0FFFF', lavender: '#E6E6FA', darksalmon: '#E9967A', violet: '#EE82EE', palegoldenrod: '#EEE8AA', lightcoral: '#F08080', khaki: '#F0E68C', aliceblue: '#F0F8FF', honeydew: '#F0FFF0', azure: '#F0FFFF', sandybrown: '#F4A460', wheat: '#F5DEB3', beige: '#F5F5DC', whitesmoke: '#F5F5F5', mintcream: '#F5FFFA', ghostwhite: '#F8F8FF', salmon: '#FA8072', antiquewhite: '#FAEBD7', linen: '#FAF0E6', lightgoldenrodyellow: '#FAFAD2', oldlace: '#FDF5E6', red: '#FF0000', fuchsia: '#FF00FF', magenta: '#FF00FF', deeppink: '#FF1493', orangered: '#FF4500', tomato: '#FF6347', hotpink: '#FF69B4', coral: '#FF7F50', darkorange: '#FF8C00', lightsalmon: '#FFA07A', orange: '#FFA500', lightpink: '#FFB6C1', pink: '#FFC0CB', gold: '#FFD700', peachpuff: '#FFDAB9', navajowhite: '#FFDEAD', moccasin: '#FFE4B5', bisque: '#FFE4C4', mistyrose: '#FFE4E1', blanchedalmond: '#FFEBCD', papayawhip: '#FFEFD5', lavenderblush: '#FFF0F5', seashell: '#FFF5EE', cornsilk: '#FFF8DC', lemonchiffon: '#FFFACD', floralwhite: '#FFFAF0', snow: '#FFFAFA', yellow: '#FFFF00', lightyellow: '#FFFFE0', ivory: '#FFFFF0', white: '#FFFFFF' };
      if (typeof color === 'string') {
        return htmlColors[color];
      }
    }

    /**
     * Set the color of the colorPicker
     * Supported formats:
     * 'red'                   --> HTML color string
     * '#ffffff'               --> hex string
     * 'rbg(255,255,255)'      --> rgb string
     * 'rgba(255,255,255,1.0)' --> rgba string
     * {r:255,g:255,b:255}     --> rgb object
     * {r:255,g:255,b:255,a:1.0} --> rgba object
     * @param {string|Object} color
     * @param {boolean} [setInitial=true]
     */

  }, {
    key: 'setColor',
    value: function setColor(color) {
      var setInitial = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

      if (color === 'none') {
        return;
      }

      var rgba = void 0;

      // if a html color shorthand is used, convert to hex
      var htmlColor = this._isColorString(color);
      if (htmlColor !== undefined) {
        color = htmlColor;
      }

      // check format
      if (util.isString(color) === true) {
        if (util.isValidRGB(color) === true) {
          var rgbaArray = color.substr(4).substr(0, color.length - 5).split(',');
          rgba = { r: rgbaArray[0], g: rgbaArray[1], b: rgbaArray[2], a: 1.0 };
        } else if (util.isValidRGBA(color) === true) {
          var _rgbaArray = color.substr(5).substr(0, color.length - 6).split(',');
          rgba = { r: _rgbaArray[0], g: _rgbaArray[1], b: _rgbaArray[2], a: _rgbaArray[3] };
        } else if (util.isValidHex(color) === true) {
          var rgbObj = util.hexToRGB(color);
          rgba = { r: rgbObj.r, g: rgbObj.g, b: rgbObj.b, a: 1.0 };
        }
      } else {
        if (color instanceof Object) {
          if (color.r !== undefined && color.g !== undefined && color.b !== undefined) {
            var alpha = color.a !== undefined ? color.a : '1.0';
            rgba = { r: color.r, g: color.g, b: color.b, a: alpha };
          }
        }
      }

      // set color
      if (rgba === undefined) {
        throw new Error("Unknown color passed to the colorPicker. Supported are strings: rgb, hex, rgba. Object: rgb ({r:r,g:g,b:b,[a:a]}). Supplied: " + (0, _stringify2['default'])(color));
      } else {
        this._setColor(rgba, setInitial);
      }
    }

    /**
     * this shows the color picker.
     * The hue circle is constructed once and stored.
     */

  }, {
    key: 'show',
    value: function show() {
      if (this.closeCallback !== undefined) {
        this.closeCallback();
        this.closeCallback = undefined;
      }

      this.applied = false;
      this.frame.style.display = 'block';
      this._generateHueCircle();
    }

    // ------------------------------------------ PRIVATE ----------------------------- //

    /**
     * Hide the picker. Is called by the cancel button.
     * Optional boolean to store the previous color for easy access later on.
     * @param {boolean} [storePrevious=true]
     * @private
     */

  }, {
    key: '_hide',
    value: function _hide() {
      var _this = this;

      var storePrevious = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;

      // store the previous color for next time;
      if (storePrevious === true) {
        this.previousColor = util.extend({}, this.color);
      }

      if (this.applied === true) {
        this.updateCallback(this.initialColor);
      }

      this.frame.style.display = 'none';

      // call the closing callback, restoring the onclick method.
      // this is in a setTimeout because it will trigger the show again before the click is done.
      setTimeout(function () {
        if (_this.closeCallback !== undefined) {
          _this.closeCallback();
          _this.closeCallback = undefined;
        }
      }, 0);
    }

    /**
     * bound to the save button. Saves and hides.
     * @private
     */

  }, {
    key: '_save',
    value: function _save() {
      this.updateCallback(this.color);
      this.applied = false;
      this._hide();
    }

    /**
     * Bound to apply button. Saves but does not close. Is undone by the cancel button.
     * @private
     */

  }, {
    key: '_apply',
    value: function _apply() {
      this.applied = true;
      this.updateCallback(this.color);
      this._updatePicker(this.color);
    }

    /**
     * load the color from the previous session.
     * @private
     */

  }, {
    key: '_loadLast',
    value: function _loadLast() {
      if (this.previousColor !== undefined) {
        this.setColor(this.previousColor, false);
      } else {
        alert("There is no last color to load...");
      }
    }

    /**
     * set the color, place the picker
     * @param {Object} rgba
     * @param {boolean} [setInitial=true]
     * @private
     */

  }, {
    key: '_setColor',
    value: function _setColor(rgba) {
      var setInitial = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

      // store the initial color
      if (setInitial === true) {
        this.initialColor = util.extend({}, rgba);
      }

      this.color = rgba;
      var hsv = util.RGBToHSV(rgba.r, rgba.g, rgba.b);

      var angleConvert = 2 * Math.PI;
      var radius = this.r * hsv.s;
      var x = this.centerCoordinates.x + radius * Math.sin(angleConvert * hsv.h);
      var y = this.centerCoordinates.y + radius * Math.cos(angleConvert * hsv.h);

      this.colorPickerSelector.style.left = x - 0.5 * this.colorPickerSelector.clientWidth + 'px';
      this.colorPickerSelector.style.top = y - 0.5 * this.colorPickerSelector.clientHeight + 'px';

      this._updatePicker(rgba);
    }

    /**
     * bound to opacity control
     * @param {number} value
     * @private
     */

  }, {
    key: '_setOpacity',
    value: function _setOpacity(value) {
      this.color.a = value / 100;
      this._updatePicker(this.color);
    }

    /**
     * bound to brightness control
     * @param {number} value
     * @private
     */

  }, {
    key: '_setBrightness',
    value: function _setBrightness(value) {
      var hsv = util.RGBToHSV(this.color.r, this.color.g, this.color.b);
      hsv.v = value / 100;
      var rgba = util.HSVToRGB(hsv.h, hsv.s, hsv.v);
      rgba['a'] = this.color.a;
      this.color = rgba;
      this._updatePicker();
    }

    /**
     * update the color picker. A black circle overlays the hue circle to mimic the brightness decreasing.
     * @param {Object} rgba
     * @private
     */

  }, {
    key: '_updatePicker',
    value: function _updatePicker() {
      var rgba = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.color;

      var hsv = util.RGBToHSV(rgba.r, rgba.g, rgba.b);
      var ctx = this.colorPickerCanvas.getContext('2d');
      if (this.pixelRation === undefined) {
        this.pixelRatio = (window.devicePixelRatio || 1) / (ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1);
      }
      ctx.setTransform(this.pixelRatio, 0, 0, this.pixelRatio, 0, 0);

      // clear the canvas
      var w = this.colorPickerCanvas.clientWidth;
      var h = this.colorPickerCanvas.clientHeight;
      ctx.clearRect(0, 0, w, h);

      ctx.putImageData(this.hueCircle, 0, 0);
      ctx.fillStyle = 'rgba(0,0,0,' + (1 - hsv.v) + ')';
      ctx.circle(this.centerCoordinates.x, this.centerCoordinates.y, this.r);
      ctx.fill();

      this.brightnessRange.value = 100 * hsv.v;
      this.opacityRange.value = 100 * rgba.a;

      this.initialColorDiv.style.backgroundColor = 'rgba(' + this.initialColor.r + ',' + this.initialColor.g + ',' + this.initialColor.b + ',' + this.initialColor.a + ')';
      this.newColorDiv.style.backgroundColor = 'rgba(' + this.color.r + ',' + this.color.g + ',' + this.color.b + ',' + this.color.a + ')';
    }

    /**
     * used by create to set the size of the canvas.
     * @private
     */

  }, {
    key: '_setSize',
    value: function _setSize() {
      this.colorPickerCanvas.style.width = '100%';
      this.colorPickerCanvas.style.height = '100%';

      this.colorPickerCanvas.width = 289 * this.pixelRatio;
      this.colorPickerCanvas.height = 289 * this.pixelRatio;
    }

    /**
     * create all dom elements
     * TODO: cleanup, lots of similar dom elements
     * @private
     */

  }, {
    key: '_create',
    value: function _create() {
      this.frame = document.createElement('div');
      this.frame.className = 'vis-color-picker';

      this.colorPickerDiv = document.createElement('div');
      this.colorPickerSelector = document.createElement('div');
      this.colorPickerSelector.className = 'vis-selector';
      this.colorPickerDiv.appendChild(this.colorPickerSelector);

      this.colorPickerCanvas = document.createElement('canvas');
      this.colorPickerDiv.appendChild(this.colorPickerCanvas);

      if (!this.colorPickerCanvas.getContext) {
        var noCanvas = document.createElement('DIV');
        noCanvas.style.color = 'red';
        noCanvas.style.fontWeight = 'bold';
        noCanvas.style.padding = '10px';
        noCanvas.innerHTML = 'Error: your browser does not support HTML canvas';
        this.colorPickerCanvas.appendChild(noCanvas);
      } else {
        var ctx = this.colorPickerCanvas.getContext("2d");
        this.pixelRatio = (window.devicePixelRatio || 1) / (ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1);

        this.colorPickerCanvas.getContext("2d").setTransform(this.pixelRatio, 0, 0, this.pixelRatio, 0, 0);
      }

      this.colorPickerDiv.className = 'vis-color';

      this.opacityDiv = document.createElement('div');
      this.opacityDiv.className = 'vis-opacity';

      this.brightnessDiv = document.createElement('div');
      this.brightnessDiv.className = 'vis-brightness';

      this.arrowDiv = document.createElement('div');
      this.arrowDiv.className = 'vis-arrow';

      this.opacityRange = document.createElement('input');
      try {
        this.opacityRange.type = 'range'; // Not supported on IE9
        this.opacityRange.min = '0';
        this.opacityRange.max = '100';
      }
      // TODO: Add some error handling and remove this lint exception
      catch (err) {} // eslint-disable-line no-empty
      this.opacityRange.value = '100';
      this.opacityRange.className = 'vis-range';

      this.brightnessRange = document.createElement('input');
      try {
        this.brightnessRange.type = 'range'; // Not supported on IE9
        this.brightnessRange.min = '0';
        this.brightnessRange.max = '100';
      }
      // TODO: Add some error handling and remove this lint exception
      catch (err) {} // eslint-disable-line no-empty
      this.brightnessRange.value = '100';
      this.brightnessRange.className = 'vis-range';

      this.opacityDiv.appendChild(this.opacityRange);
      this.brightnessDiv.appendChild(this.brightnessRange);

      var me = this;
      this.opacityRange.onchange = function () {
        me._setOpacity(this.value);
      };
      this.opacityRange.oninput = function () {
        me._setOpacity(this.value);
      };
      this.brightnessRange.onchange = function () {
        me._setBrightness(this.value);
      };
      this.brightnessRange.oninput = function () {
        me._setBrightness(this.value);
      };

      this.brightnessLabel = document.createElement("div");
      this.brightnessLabel.className = "vis-label vis-brightness";
      this.brightnessLabel.innerHTML = 'brightness:';

      this.opacityLabel = document.createElement("div");
      this.opacityLabel.className = "vis-label vis-opacity";
      this.opacityLabel.innerHTML = 'opacity:';

      this.newColorDiv = document.createElement("div");
      this.newColorDiv.className = "vis-new-color";
      this.newColorDiv.innerHTML = 'new';

      this.initialColorDiv = document.createElement("div");
      this.initialColorDiv.className = "vis-initial-color";
      this.initialColorDiv.innerHTML = 'initial';

      this.cancelButton = document.createElement("div");
      this.cancelButton.className = "vis-button vis-cancel";
      this.cancelButton.innerHTML = 'cancel';
      this.cancelButton.onclick = this._hide.bind(this, false);

      this.applyButton = document.createElement("div");
      this.applyButton.className = "vis-button vis-apply";
      this.applyButton.innerHTML = 'apply';
      this.applyButton.onclick = this._apply.bind(this);

      this.saveButton = document.createElement("div");
      this.saveButton.className = "vis-button vis-save";
      this.saveButton.innerHTML = 'save';
      this.saveButton.onclick = this._save.bind(this);

      this.loadButton = document.createElement("div");
      this.loadButton.className = "vis-button vis-load";
      this.loadButton.innerHTML = 'load last';
      this.loadButton.onclick = this._loadLast.bind(this);

      this.frame.appendChild(this.colorPickerDiv);
      this.frame.appendChild(this.arrowDiv);
      this.frame.appendChild(this.brightnessLabel);
      this.frame.appendChild(this.brightnessDiv);
      this.frame.appendChild(this.opacityLabel);
      this.frame.appendChild(this.opacityDiv);
      this.frame.appendChild(this.newColorDiv);
      this.frame.appendChild(this.initialColorDiv);

      this.frame.appendChild(this.cancelButton);
      this.frame.appendChild(this.applyButton);
      this.frame.appendChild(this.saveButton);
      this.frame.appendChild(this.loadButton);
    }

    /**
     * bind hammer to the color picker
     * @private
     */

  }, {
    key: '_bindHammer',
    value: function _bindHammer() {
      var _this2 = this;

      this.drag = {};
      this.pinch = {};
      this.hammer = new Hammer(this.colorPickerCanvas);
      this.hammer.get('pinch').set({ enable: true });

      hammerUtil.onTouch(this.hammer, function (event) {
        _this2._moveSelector(event);
      });
      this.hammer.on('tap', function (event) {
        _this2._moveSelector(event);
      });
      this.hammer.on('panstart', function (event) {
        _this2._moveSelector(event);
      });
      this.hammer.on('panmove', function (event) {
        _this2._moveSelector(event);
      });
      this.hammer.on('panend', function (event) {
        _this2._moveSelector(event);
      });
    }

    /**
     * generate the hue circle. This is relatively heavy (200ms) and is done only once on the first time it is shown.
     * @private
     */

  }, {
    key: '_generateHueCircle',
    value: function _generateHueCircle() {
      if (this.generated === false) {
        var ctx = this.colorPickerCanvas.getContext('2d');
        if (this.pixelRation === undefined) {
          this.pixelRatio = (window.devicePixelRatio || 1) / (ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1);
        }
        ctx.setTransform(this.pixelRatio, 0, 0, this.pixelRatio, 0, 0);

        // clear the canvas
        var w = this.colorPickerCanvas.clientWidth;
        var h = this.colorPickerCanvas.clientHeight;
        ctx.clearRect(0, 0, w, h);

        // draw hue circle
        var x = void 0,
            y = void 0,
            hue = void 0,
            sat = void 0;
        this.centerCoordinates = { x: w * 0.5, y: h * 0.5 };
        this.r = 0.49 * w;
        var angleConvert = 2 * Math.PI / 360;
        var hfac = 1 / 360;
        var sfac = 1 / this.r;
        var rgb = void 0;
        for (hue = 0; hue < 360; hue++) {
          for (sat = 0; sat < this.r; sat++) {
            x = this.centerCoordinates.x + sat * Math.sin(angleConvert * hue);
            y = this.centerCoordinates.y + sat * Math.cos(angleConvert * hue);
            rgb = util.HSVToRGB(hue * hfac, sat * sfac, 1);
            ctx.fillStyle = 'rgb(' + rgb.r + ',' + rgb.g + ',' + rgb.b + ')';
            ctx.fillRect(x - 0.5, y - 0.5, 2, 2);
          }
        }
        ctx.strokeStyle = 'rgba(0,0,0,1)';
        ctx.circle(this.centerCoordinates.x, this.centerCoordinates.y, this.r);
        ctx.stroke();

        this.hueCircle = ctx.getImageData(0, 0, w, h);
      }
      this.generated = true;
    }

    /**
     * move the selector. This is called by hammer functions.
     *
     * @param {Event}  event   The event
     * @private
     */

  }, {
    key: '_moveSelector',
    value: function _moveSelector(event) {
      var rect = this.colorPickerDiv.getBoundingClientRect();
      var left = event.center.x - rect.left;
      var top = event.center.y - rect.top;

      var centerY = 0.5 * this.colorPickerDiv.clientHeight;
      var centerX = 0.5 * this.colorPickerDiv.clientWidth;

      var x = left - centerX;
      var y = top - centerY;

      var angle = Math.atan2(x, y);
      var radius = 0.98 * Math.min(Math.sqrt(x * x + y * y), centerX);

      var newTop = Math.cos(angle) * radius + centerY;
      var newLeft = Math.sin(angle) * radius + centerX;

      this.colorPickerSelector.style.top = newTop - 0.5 * this.colorPickerSelector.clientHeight + 'px';
      this.colorPickerSelector.style.left = newLeft - 0.5 * this.colorPickerSelector.clientWidth + 'px';

      // set color
      var h = angle / (2 * Math.PI);
      h = h < 0 ? h + 1 : h;
      var s = radius / this.r;
      var hsv = util.RGBToHSV(this.color.r, this.color.g, this.color.b);
      hsv.h = h;
      hsv.s = s;
      var rgba = util.HSVToRGB(hsv.h, hsv.s, hsv.v);
      rgba['a'] = this.color.a;
      this.color = rgba;

      // update previews
      this.initialColorDiv.style.backgroundColor = 'rgba(' + this.initialColor.r + ',' + this.initialColor.g + ',' + this.initialColor.b + ',' + this.initialColor.a + ')';
      this.newColorDiv.style.backgroundColor = 'rgba(' + this.color.r + ',' + this.color.g + ',' + this.color.b + ',' + this.color.a + ')';
    }
  }]);
  return ColorPicker;
}();

exports['default'] = ColorPicker;

/***/ }),
/* 180 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var moment = __webpack_require__(9);
var util = __webpack_require__(2);
var DataSet = __webpack_require__(11);
var DataView = __webpack_require__(12);
var Range = __webpack_require__(64);
var Core = __webpack_require__(65);
var TimeAxis = __webpack_require__(45);
var CurrentTime = __webpack_require__(67);
var CustomTime = __webpack_require__(46);
var LineGraph = __webpack_require__(106);

var printStyle = __webpack_require__(15).printStyle;
var allOptions = __webpack_require__(113).allOptions;
var configureOptions = __webpack_require__(113).configureOptions;

var Configurator = __webpack_require__(71)['default'];
var Validator = __webpack_require__(15)['default'];

/**
 * Create a timeline visualization
 * @param {HTMLElement} container
 * @param {vis.DataSet | Array} [items]
 * @param {vis.DataSet | Array | vis.DataView | Object} [groups]
 * @param {Object} [options]  See Graph2d.setOptions for the available options.
 * @constructor Graph2d
 * @extends Core
 */
function Graph2d(container, items, groups, options) {
  // if the third element is options, the forth is groups (optionally);
  if (!(Array.isArray(groups) || groups instanceof DataSet || groups instanceof DataView) && groups instanceof Object) {
    var forthArgument = options;
    options = groups;
    groups = forthArgument;
  }

  // TODO: REMOVE THIS in the next MAJOR release
  // see https://github.com/almende/vis/issues/2511
  if (options && options.throttleRedraw) {
    console.warn("Graph2d option \"throttleRedraw\" is DEPRICATED and no longer supported. It will be removed in the next MAJOR release.");
  }

  var me = this;
  this.defaultOptions = {
    start: null,
    end: null,

    autoResize: true,

    orientation: {
      axis: 'bottom', // axis orientation: 'bottom', 'top', or 'both'
      item: 'bottom' // not relevant for Graph2d
    },

    moment: moment,

    width: null,
    height: null,
    maxHeight: null,
    minHeight: null
  };
  this.options = util.deepExtend({}, this.defaultOptions);

  // Create the DOM, props, and emitter
  this._create(container);

  // all components listed here will be repainted automatically
  this.components = [];

  this.body = {
    dom: this.dom,
    domProps: this.props,
    emitter: {
      on: this.on.bind(this),
      off: this.off.bind(this),
      emit: this.emit.bind(this)
    },
    hiddenDates: [],
    util: {
      toScreen: me._toScreen.bind(me),
      toGlobalScreen: me._toGlobalScreen.bind(me), // this refers to the root.width
      toTime: me._toTime.bind(me),
      toGlobalTime: me._toGlobalTime.bind(me)
    }
  };

  // range
  this.range = new Range(this.body);
  this.components.push(this.range);
  this.body.range = this.range;

  // time axis
  this.timeAxis = new TimeAxis(this.body);
  this.components.push(this.timeAxis);
  //this.body.util.snap = this.timeAxis.snap.bind(this.timeAxis);

  // current time bar
  this.currentTime = new CurrentTime(this.body);
  this.components.push(this.currentTime);

  // item set
  this.linegraph = new LineGraph(this.body);

  this.components.push(this.linegraph);

  this.itemsData = null; // DataSet
  this.groupsData = null; // DataSet


  this.on('tap', function (event) {
    me.emit('click', me.getEventProperties(event));
  });
  this.on('doubletap', function (event) {
    me.emit('doubleClick', me.getEventProperties(event));
  });
  this.dom.root.oncontextmenu = function (event) {
    me.emit('contextmenu', me.getEventProperties(event));
  };

  // apply options
  if (options) {
    this.setOptions(options);
  }

  // IMPORTANT: THIS HAPPENS BEFORE SET ITEMS!
  if (groups) {
    this.setGroups(groups);
  }

  // create itemset
  if (items) {
    this.setItems(items);
  }

  // draw for the first time
  this._redraw();
}

// Extend the functionality from Core
Graph2d.prototype = new Core();

Graph2d.prototype.setOptions = function (options) {
  // validate options
  var errorFound = Validator.validate(options, allOptions);
  if (errorFound === true) {
    console.log('%cErrors have been found in the supplied options object.', printStyle);
  }

  Core.prototype.setOptions.call(this, options);
};

/**
 * Set items
 * @param {vis.DataSet | Array | null} items
 */
Graph2d.prototype.setItems = function (items) {
  var initialLoad = this.itemsData == null;

  // convert to type DataSet when needed
  var newDataSet;
  if (!items) {
    newDataSet = null;
  } else if (items instanceof DataSet || items instanceof DataView) {
    newDataSet = items;
  } else {
    // turn an array into a dataset
    newDataSet = new DataSet(items, {
      type: {
        start: 'Date',
        end: 'Date'
      }
    });
  }

  // set items
  this.itemsData = newDataSet;
  this.linegraph && this.linegraph.setItems(newDataSet);

  if (initialLoad) {
    if (this.options.start != undefined || this.options.end != undefined) {
      var start = this.options.start != undefined ? this.options.start : null;
      var end = this.options.end != undefined ? this.options.end : null;
      this.setWindow(start, end, { animation: false });
    } else {
      this.fit({ animation: false });
    }
  }
};

/**
 * Set groups
 * @param {vis.DataSet | Array} groups
 */
Graph2d.prototype.setGroups = function (groups) {
  // convert to type DataSet when needed
  var newDataSet;
  if (!groups) {
    newDataSet = null;
  } else if (groups instanceof DataSet || groups instanceof DataView) {
    newDataSet = groups;
  } else {
    // turn an array into a dataset
    newDataSet = new DataSet(groups);
  }

  this.groupsData = newDataSet;
  this.linegraph.setGroups(newDataSet);
};

/**
 * Returns an object containing an SVG element with the icon of the group (size determined by iconWidth and iconHeight), the label of the group (content) and the yAxisOrientation of the group (left or right).
 * @param {vis.GraphGroup.id} groupId
 * @param {number} width
 * @param {number} height
 * @returns {{icon: SVGElement, label: string, orientation: string}|string}
 */
Graph2d.prototype.getLegend = function (groupId, width, height) {
  if (width === undefined) {
    width = 15;
  }
  if (height === undefined) {
    height = 15;
  }
  if (this.linegraph.groups[groupId] !== undefined) {
    return this.linegraph.groups[groupId].getLegend(width, height);
  } else {
    return "cannot find group:'" + groupId + "'";
  }
};

/**
 * This checks if the visible option of the supplied group (by ID) is true or false.
 * @param {vis.GraphGroup.id} groupId
 * @returns {boolean}
 */
Graph2d.prototype.isGroupVisible = function (groupId) {
  if (this.linegraph.groups[groupId] !== undefined) {
    return this.linegraph.groups[groupId].visible && (this.linegraph.options.groups.visibility[groupId] === undefined || this.linegraph.options.groups.visibility[groupId] == true);
  } else {
    return false;
  }
};

/**
 * Get the data range of the item set.
 * @returns {{min: Date, max: Date}} range  A range with a start and end Date.
 *                                          When no minimum is found, min==null
 *                                          When no maximum is found, max==null
 */
Graph2d.prototype.getDataRange = function () {
  var min = null;
  var max = null;

  // calculate min from start filed
  for (var groupId in this.linegraph.groups) {
    if (this.linegraph.groups.hasOwnProperty(groupId)) {
      if (this.linegraph.groups[groupId].visible == true) {
        for (var i = 0; i < this.linegraph.groups[groupId].itemsData.length; i++) {
          var item = this.linegraph.groups[groupId].itemsData[i];
          var value = util.convert(item.x, 'Date').valueOf();
          min = min == null ? value : min > value ? value : min;
          max = max == null ? value : max < value ? value : max;
        }
      }
    }
  }

  return {
    min: min != null ? new Date(min) : null,
    max: max != null ? new Date(max) : null
  };
};

/**
 * Generate Timeline related information from an event
 * @param {Event} event
 * @return {Object} An object with related information, like on which area
 *                  The event happened, whether clicked on an item, etc.
 */
Graph2d.prototype.getEventProperties = function (event) {
  var clientX = event.center ? event.center.x : event.clientX;
  var clientY = event.center ? event.center.y : event.clientY;
  var x = clientX - util.getAbsoluteLeft(this.dom.centerContainer);
  var y = clientY - util.getAbsoluteTop(this.dom.centerContainer);
  var time = this._toTime(x);

  var customTime = CustomTime.customTimeFromTarget(event);

  var element = util.getTarget(event);
  var what = null;
  if (util.hasParent(element, this.timeAxis.dom.foreground)) {
    what = 'axis';
  } else if (this.timeAxis2 && util.hasParent(element, this.timeAxis2.dom.foreground)) {
    what = 'axis';
  } else if (util.hasParent(element, this.linegraph.yAxisLeft.dom.frame)) {
    what = 'data-axis';
  } else if (util.hasParent(element, this.linegraph.yAxisRight.dom.frame)) {
    what = 'data-axis';
  } else if (util.hasParent(element, this.linegraph.legendLeft.dom.frame)) {
    what = 'legend';
  } else if (util.hasParent(element, this.linegraph.legendRight.dom.frame)) {
    what = 'legend';
  } else if (customTime != null) {
    what = 'custom-time';
  } else if (util.hasParent(element, this.currentTime.bar)) {
    what = 'current-time';
  } else if (util.hasParent(element, this.dom.center)) {
    what = 'background';
  }

  var value = [];
  var yAxisLeft = this.linegraph.yAxisLeft;
  var yAxisRight = this.linegraph.yAxisRight;
  if (!yAxisLeft.hidden && this.itemsData.length > 0) {
    value.push(yAxisLeft.screenToValue(y));
  }
  if (!yAxisRight.hidden && this.itemsData.length > 0) {
    value.push(yAxisRight.screenToValue(y));
  }

  return {
    event: event,
    what: what,
    pageX: event.srcEvent ? event.srcEvent.pageX : event.pageX,
    pageY: event.srcEvent ? event.srcEvent.pageY : event.pageY,
    x: x,
    y: y,
    time: time,
    value: value
  };
};

/**
 * Load a configurator
 * @return {Object}
 * @private
 */
Graph2d.prototype._createConfigurator = function () {
  return new Configurator(this, this.dom.container, configureOptions);
};

module.exports = Graph2d;

/***/ }),
/* 181 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


// utils
exports.util = __webpack_require__(2);
exports.DOMutil = __webpack_require__(14);

// data
exports.DataSet = __webpack_require__(11);
exports.DataView = __webpack_require__(12);
exports.Queue = __webpack_require__(43);

// Network
exports.Network = __webpack_require__(182);
exports.network = {
  Images: __webpack_require__(116),
  dotparser: __webpack_require__(114),
  gephiParser: __webpack_require__(115),
  allOptions: __webpack_require__(122)
};
exports.network.convertDot = function (input) {
  return exports.network.dotparser.DOTToGraph(input);
};
exports.network.convertGephi = function (input, options) {
  return exports.network.gephiParser.parseGephi(input, options);
};

// bundled external libraries
exports.moment = __webpack_require__(9);
exports.Hammer = __webpack_require__(10);
exports.keycharm = __webpack_require__(35);

/***/ }),
/* 182 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


// Load custom shapes into CanvasRenderingContext2D
__webpack_require__(183);

var Emitter = __webpack_require__(44);
var util = __webpack_require__(2);
var dotparser = __webpack_require__(114);
var gephiParser = __webpack_require__(115);
var Activator = __webpack_require__(97);
var locales = __webpack_require__(184);

var Images = __webpack_require__(116)['default'];
var Groups = __webpack_require__(186)['default'];
var NodesHandler = __webpack_require__(187)['default'];
var EdgesHandler = __webpack_require__(214)['default'];
var PhysicsEngine = __webpack_require__(220)['default'];
var ClusterEngine = __webpack_require__(227)['default'];
var CanvasRenderer = __webpack_require__(229)['default'];
var Canvas = __webpack_require__(230)['default'];
var View = __webpack_require__(231)['default'];
var InteractionHandler = __webpack_require__(232)['default'];
var SelectionHandler = __webpack_require__(234)['default'];
var LayoutEngine = __webpack_require__(235)['default'];
var ManipulationSystem = __webpack_require__(237)['default'];
var Configurator = __webpack_require__(71)['default'];
var Validator = __webpack_require__(15)['default'];

var _require = __webpack_require__(15),
    printStyle = _require.printStyle;

var _require2 = __webpack_require__(122),
    allOptions = _require2.allOptions,
    configureOptions = _require2.configureOptions;

var KamadaKawai = __webpack_require__(238)['default'];

/**
 * Create a network visualization, displaying nodes and edges.
 *
 * @param {Element} container   The DOM element in which the Network will
 *                                  be created. Normally a div element.
 * @param {Object} data         An object containing parameters
 *                              {Array} nodes
 *                              {Array} edges
 * @param {Object} options      Options
 * @constructor Network
 */
function Network(container, data, options) {
  var _this = this;

  if (!(this instanceof Network)) {
    throw new SyntaxError('Constructor must be called with the new operator');
  }

  // set constant values
  this.options = {};
  this.defaultOptions = {
    locale: 'en',
    locales: locales,
    clickToUse: false
  };
  util.extend(this.options, this.defaultOptions);

  /**
   * Containers for nodes and edges.
   *
   * 'edges' and 'nodes' contain the full definitions of all the network elements.
   * 'nodeIndices' and 'edgeIndices' contain the id's of the active elements.
   *
   * The distinction is important, because a defined node need not be active, i.e.
   * visible on the canvas. This happens in particular when clusters are defined, in
   * that case there will be nodes and edges not displayed.
   * The bottom line is that all code with actions related to visibility, *must* use
   * 'nodeIndices' and 'edgeIndices', not 'nodes' and 'edges' directly.
   */
  this.body = {
    container: container,

    // See comment above for following fields
    nodes: {},
    nodeIndices: [],
    edges: {},
    edgeIndices: [],

    emitter: {
      on: this.on.bind(this),
      off: this.off.bind(this),
      emit: this.emit.bind(this),
      once: this.once.bind(this)
    },
    eventListeners: {
      onTap: function onTap() {},
      onTouch: function onTouch() {},
      onDoubleTap: function onDoubleTap() {},
      onHold: function onHold() {},
      onDragStart: function onDragStart() {},
      onDrag: function onDrag() {},
      onDragEnd: function onDragEnd() {},
      onMouseWheel: function onMouseWheel() {},
      onPinch: function onPinch() {},
      onMouseMove: function onMouseMove() {},
      onRelease: function onRelease() {},
      onContext: function onContext() {}
    },
    data: {
      nodes: null, // A DataSet or DataView
      edges: null // A DataSet or DataView
    },
    functions: {
      createNode: function createNode() {},
      createEdge: function createEdge() {},
      getPointer: function getPointer() {}
    },
    modules: {},
    view: {
      scale: 1,
      translation: { x: 0, y: 0 }
    }
  };

  // bind the event listeners
  this.bindEventListeners();

  // setting up all modules
  this.images = new Images(function () {
    return _this.body.emitter.emit("_requestRedraw");
  }); // object with images
  this.groups = new Groups(); // object with groups
  this.canvas = new Canvas(this.body); // DOM handler
  this.selectionHandler = new SelectionHandler(this.body, this.canvas); // Selection handler
  this.interactionHandler = new InteractionHandler(this.body, this.canvas, this.selectionHandler); // Interaction handler handles all the hammer bindings (that are bound by canvas), key
  this.view = new View(this.body, this.canvas); // camera handler, does animations and zooms
  this.renderer = new CanvasRenderer(this.body, this.canvas); // renderer, starts renderloop, has events that modules can hook into
  this.physics = new PhysicsEngine(this.body); // physics engine, does all the simulations
  this.layoutEngine = new LayoutEngine(this.body); // layout engine for inital layout and hierarchical layout
  this.clustering = new ClusterEngine(this.body); // clustering api
  this.manipulation = new ManipulationSystem(this.body, this.canvas, this.selectionHandler); // data manipulation system

  this.nodesHandler = new NodesHandler(this.body, this.images, this.groups, this.layoutEngine); // Handle adding, deleting and updating of nodes as well as global options
  this.edgesHandler = new EdgesHandler(this.body, this.images, this.groups); // Handle adding, deleting and updating of edges as well as global options

  this.body.modules["kamadaKawai"] = new KamadaKawai(this.body, 150, 0.05); // Layouting algorithm.
  this.body.modules["clustering"] = this.clustering;

  // create the DOM elements
  this.canvas._create();

  // apply options
  this.setOptions(options);

  // load data (the disable start variable will be the same as the enabled clustering)
  this.setData(data);
}

// Extend Network with an Emitter mixin
Emitter(Network.prototype);

/**
 * Set options
 * @param {Object} options
 */
Network.prototype.setOptions = function (options) {
  var _this2 = this;

  if (options !== undefined) {
    var errorFound = Validator.validate(options, allOptions);
    if (errorFound === true) {
      console.log('%cErrors have been found in the supplied options object.', printStyle);
    }

    // copy the global fields over
    var fields = ['locale', 'locales', 'clickToUse'];
    util.selectiveDeepExtend(fields, this.options, options);

    // the hierarchical system can adapt the edges and the physics to it's own options because not all combinations work with the hierarichical system.
    options = this.layoutEngine.setOptions(options.layout, options);

    this.canvas.setOptions(options); // options for canvas are in globals

    // pass the options to the modules
    this.groups.setOptions(options.groups);
    this.nodesHandler.setOptions(options.nodes);
    this.edgesHandler.setOptions(options.edges);
    this.physics.setOptions(options.physics);
    this.manipulation.setOptions(options.manipulation, options, this.options); // manipulation uses the locales in the globals

    this.interactionHandler.setOptions(options.interaction);
    this.renderer.setOptions(options.interaction); // options for rendering are in interaction
    this.selectionHandler.setOptions(options.interaction); // options for selection are in interaction

    // reload the settings of the nodes to apply changes in groups that are not referenced by pointer.
    if (options.groups !== undefined) {
      this.body.emitter.emit("refreshNodes");
    }
    // these two do not have options at the moment, here for completeness
    //this.view.setOptions(options.view);
    //this.clustering.setOptions(options.clustering);

    if ('configure' in options) {
      if (!this.configurator) {
        this.configurator = new Configurator(this, this.body.container, configureOptions, this.canvas.pixelRatio);
      }

      this.configurator.setOptions(options.configure);
    }

    // if the configuration system is enabled, copy all options and put them into the config system
    if (this.configurator && this.configurator.options.enabled === true) {
      var networkOptions = { nodes: {}, edges: {}, layout: {}, interaction: {}, manipulation: {}, physics: {}, global: {} };
      util.deepExtend(networkOptions.nodes, this.nodesHandler.options);
      util.deepExtend(networkOptions.edges, this.edgesHandler.options);
      util.deepExtend(networkOptions.layout, this.layoutEngine.options);
      // load the selectionHandler and render default options in to the interaction group
      util.deepExtend(networkOptions.interaction, this.selectionHandler.options);
      util.deepExtend(networkOptions.interaction, this.renderer.options);

      util.deepExtend(networkOptions.interaction, this.interactionHandler.options);
      util.deepExtend(networkOptions.manipulation, this.manipulation.options);
      util.deepExtend(networkOptions.physics, this.physics.options);

      // load globals into the global object
      util.deepExtend(networkOptions.global, this.canvas.options);
      util.deepExtend(networkOptions.global, this.options);

      this.configurator.setModuleOptions(networkOptions);
    }

    // handle network global options
    if (options.clickToUse !== undefined) {
      if (options.clickToUse === true) {
        if (this.activator === undefined) {
          this.activator = new Activator(this.canvas.frame);
          this.activator.on('change', function () {
            _this2.body.emitter.emit("activate");
          });
        }
      } else {
        if (this.activator !== undefined) {
          this.activator.destroy();
          delete this.activator;
        }
        this.body.emitter.emit("activate");
      }
    } else {
      this.body.emitter.emit("activate");
    }

    this.canvas.setSize();
    // start the physics simulation. Can be safely called multiple times.
    this.body.emitter.emit("startSimulation");
  }
};

/**
 * Update the visible nodes and edges list with the most recent node state.
 *
 * Visible nodes are stored in this.body.nodeIndices.
 * Visible edges are stored in this.body.edgeIndices.
 * A node or edges is visible if it is not hidden or clustered.
 *
 * @private
 */
Network.prototype._updateVisibleIndices = function () {
  var nodes = this.body.nodes;
  var edges = this.body.edges;
  this.body.nodeIndices = [];
  this.body.edgeIndices = [];

  for (var nodeId in nodes) {
    if (nodes.hasOwnProperty(nodeId)) {
      if (!this.clustering._isClusteredNode(nodeId) && nodes[nodeId].options.hidden === false) {
        this.body.nodeIndices.push(nodes[nodeId].id);
      }
    }
  }

  for (var edgeId in edges) {
    if (edges.hasOwnProperty(edgeId)) {
      var edge = edges[edgeId];

      // It can happen that this is executed *after* a node edge has been removed,
      // but *before* the edge itself has been removed. Taking this into account.
      var fromNode = nodes[edge.fromId];
      var toNode = nodes[edge.toId];
      var edgeNodesPresent = fromNode !== undefined && toNode !== undefined;

      var isVisible = !this.clustering._isClusteredEdge(edgeId) && edge.options.hidden === false && edgeNodesPresent && fromNode.options.hidden === false // Also hidden if any of its connecting nodes are hidden
      && toNode.options.hidden === false; // idem

      if (isVisible) {
        this.body.edgeIndices.push(edge.id);
      }
    }
  }
};

/**
 * Bind all events
 */
Network.prototype.bindEventListeners = function () {
  var _this3 = this;

  // This event will trigger a rebuilding of the cache everything.
  // Used when nodes or edges have been added or removed.
  this.body.emitter.on("_dataChanged", function () {
    _this3.edgesHandler._updateState();
    _this3.body.emitter.emit("_dataUpdated");
  });

  // this is called when options of EXISTING nodes or edges have changed.
  this.body.emitter.on("_dataUpdated", function () {
    // Order important in following block
    _this3.clustering._updateState();
    _this3._updateVisibleIndices();

    _this3._updateValueRange(_this3.body.nodes);
    _this3._updateValueRange(_this3.body.edges);
    // start simulation (can be called safely, even if already running)
    _this3.body.emitter.emit("startSimulation");
    _this3.body.emitter.emit("_requestRedraw");
  });
};

/**
 * Set nodes and edges, and optionally options as well.
 *
 * @param {Object} data              Object containing parameters:
 *                                   {Array | DataSet | DataView} [nodes] Array with nodes
 *                                   {Array | DataSet | DataView} [edges] Array with edges
 *                                   {String} [dot] String containing data in DOT format
 *                                   {String} [gephi] String containing data in gephi JSON format
 *                                   {Options} [options] Object with options
 */
Network.prototype.setData = function (data) {
  // reset the physics engine.
  this.body.emitter.emit("resetPhysics");
  this.body.emitter.emit("_resetData");

  // unselect all to ensure no selections from old data are carried over.
  this.selectionHandler.unselectAll();

  if (data && data.dot && (data.nodes || data.edges)) {
    throw new SyntaxError('Data must contain either parameter "dot" or ' + ' parameter pair "nodes" and "edges", but not both.');
  }

  // set options
  this.setOptions(data && data.options);
  // set all data
  if (data && data.dot) {
    console.log('The dot property has been deprecated. Please use the static convertDot method to convert DOT into vis.network format and use the normal data format with nodes and edges. This converter is used like this: var data = vis.network.convertDot(dotString);');
    // parse DOT file
    var dotData = dotparser.DOTToGraph(data.dot);
    this.setData(dotData);
    return;
  } else if (data && data.gephi) {
    // parse DOT file
    console.log('The gephi property has been deprecated. Please use the static convertGephi method to convert gephi into vis.network format and use the normal data format with nodes and edges. This converter is used like this: var data = vis.network.convertGephi(gephiJson);');
    var gephiData = gephiParser.parseGephi(data.gephi);
    this.setData(gephiData);
    return;
  } else {
    this.nodesHandler.setData(data && data.nodes, true);
    this.edgesHandler.setData(data && data.edges, true);
  }

  // emit change in data
  this.body.emitter.emit("_dataChanged");

  // emit data loaded
  this.body.emitter.emit("_dataLoaded");

  // find a stable position or start animating to a stable position
  this.body.emitter.emit("initPhysics");
};

/**
 * Cleans up all bindings of the network, removing it fully from the memory IF the variable is set to null after calling this function.
 * var network = new vis.Network(..);
 * network.destroy();
 * network = null;
 */
Network.prototype.destroy = function () {
  this.body.emitter.emit("destroy");
  // clear events
  this.body.emitter.off();
  this.off();

  // delete modules
  delete this.groups;
  delete this.canvas;
  delete this.selectionHandler;
  delete this.interactionHandler;
  delete this.view;
  delete this.renderer;
  delete this.physics;
  delete this.layoutEngine;
  delete this.clustering;
  delete this.manipulation;
  delete this.nodesHandler;
  delete this.edgesHandler;
  delete this.configurator;
  delete this.images;

  for (var nodeId in this.body.nodes) {
    if (!this.body.nodes.hasOwnProperty(nodeId)) continue;
    delete this.body.nodes[nodeId];
  }

  for (var edgeId in this.body.edges) {
    if (!this.body.edges.hasOwnProperty(edgeId)) continue;
    delete this.body.edges[edgeId];
  }

  // remove the container and everything inside it recursively
  util.recursiveDOMDelete(this.body.container);
};

/**
 * Update the values of all object in the given array according to the current
 * value range of the objects in the array.
 * @param {Object} obj    An object containing a set of Edges or Nodes
 *                        The objects must have a method getValue() and
 *                        setValueRange(min, max).
 * @private
 */
Network.prototype._updateValueRange = function (obj) {
  var id;

  // determine the range of the objects
  var valueMin = undefined;
  var valueMax = undefined;
  var valueTotal = 0;
  for (id in obj) {
    if (obj.hasOwnProperty(id)) {
      var value = obj[id].getValue();
      if (value !== undefined) {
        valueMin = valueMin === undefined ? value : Math.min(value, valueMin);
        valueMax = valueMax === undefined ? value : Math.max(value, valueMax);
        valueTotal += value;
      }
    }
  }

  // adjust the range of all objects
  if (valueMin !== undefined && valueMax !== undefined) {
    for (id in obj) {
      if (obj.hasOwnProperty(id)) {
        obj[id].setValueRange(valueMin, valueMax, valueTotal);
      }
    }
  }
};

/**
 * Returns true when the Network is active.
 * @returns {boolean}
 */
Network.prototype.isActive = function () {
  return !this.activator || this.activator.active;
};

Network.prototype.setSize = function () {
  return this.canvas.setSize.apply(this.canvas, arguments);
};
Network.prototype.canvasToDOM = function () {
  return this.canvas.canvasToDOM.apply(this.canvas, arguments);
};
Network.prototype.DOMtoCanvas = function () {
  return this.canvas.DOMtoCanvas.apply(this.canvas, arguments);
};
Network.prototype.findNode = function () {
  return this.clustering.findNode.apply(this.clustering, arguments);
};
Network.prototype.isCluster = function () {
  return this.clustering.isCluster.apply(this.clustering, arguments);
};
Network.prototype.openCluster = function () {
  return this.clustering.openCluster.apply(this.clustering, arguments);
};
Network.prototype.cluster = function () {
  return this.clustering.cluster.apply(this.clustering, arguments);
};
Network.prototype.getNodesInCluster = function () {
  return this.clustering.getNodesInCluster.apply(this.clustering, arguments);
};
Network.prototype.clusterByConnection = function () {
  return this.clustering.clusterByConnection.apply(this.clustering, arguments);
};
Network.prototype.clusterByHubsize = function () {
  return this.clustering.clusterByHubsize.apply(this.clustering, arguments);
};
Network.prototype.clusterOutliers = function () {
  return this.clustering.clusterOutliers.apply(this.clustering, arguments);
};
Network.prototype.getSeed = function () {
  return this.layoutEngine.getSeed.apply(this.layoutEngine, arguments);
};
Network.prototype.enableEditMode = function () {
  return this.manipulation.enableEditMode.apply(this.manipulation, arguments);
};
Network.prototype.disableEditMode = function () {
  return this.manipulation.disableEditMode.apply(this.manipulation, arguments);
};
Network.prototype.addNodeMode = function () {
  return this.manipulation.addNodeMode.apply(this.manipulation, arguments);
};
Network.prototype.editNode = function () {
  return this.manipulation.editNode.apply(this.manipulation, arguments);
};
Network.prototype.editNodeMode = function () {
  console.log("Deprecated: Please use editNode instead of editNodeMode.");return this.manipulation.editNode.apply(this.manipulation, arguments);
};
Network.prototype.addEdgeMode = function () {
  return this.manipulation.addEdgeMode.apply(this.manipulation, arguments);
};
Network.prototype.editEdgeMode = function () {
  return this.manipulation.editEdgeMode.apply(this.manipulation, arguments);
};
Network.prototype.deleteSelected = function () {
  return this.manipulation.deleteSelected.apply(this.manipulation, arguments);
};
Network.prototype.getPositions = function () {
  return this.nodesHandler.getPositions.apply(this.nodesHandler, arguments);
};
Network.prototype.storePositions = function () {
  return this.nodesHandler.storePositions.apply(this.nodesHandler, arguments);
};
Network.prototype.moveNode = function () {
  return this.nodesHandler.moveNode.apply(this.nodesHandler, arguments);
};
Network.prototype.getBoundingBox = function () {
  return this.nodesHandler.getBoundingBox.apply(this.nodesHandler, arguments);
};
Network.prototype.getConnectedNodes = function (objectId) {
  if (this.body.nodes[objectId] !== undefined) {
    return this.nodesHandler.getConnectedNodes.apply(this.nodesHandler, arguments);
  } else {
    return this.edgesHandler.getConnectedNodes.apply(this.edgesHandler, arguments);
  }
};
Network.prototype.getConnectedEdges = function () {
  return this.nodesHandler.getConnectedEdges.apply(this.nodesHandler, arguments);
};
Network.prototype.startSimulation = function () {
  return this.physics.startSimulation.apply(this.physics, arguments);
};
Network.prototype.stopSimulation = function () {
  return this.physics.stopSimulation.apply(this.physics, arguments);
};
Network.prototype.stabilize = function () {
  return this.physics.stabilize.apply(this.physics, arguments);
};
Network.prototype.getSelection = function () {
  return this.selectionHandler.getSelection.apply(this.selectionHandler, arguments);
};
Network.prototype.setSelection = function () {
  return this.selectionHandler.setSelection.apply(this.selectionHandler, arguments);
};
Network.prototype.getSelectedNodes = function () {
  return this.selectionHandler.getSelectedNodes.apply(this.selectionHandler, arguments);
};
Network.prototype.getSelectedEdges = function () {
  return this.selectionHandler.getSelectedEdges.apply(this.selectionHandler, arguments);
};
Network.prototype.getNodeAt = function () {
  var node = this.selectionHandler.getNodeAt.apply(this.selectionHandler, arguments);
  if (node !== undefined && node.id !== undefined) {
    return node.id;
  }
  return node;
};
Network.prototype.getEdgeAt = function () {
  var edge = this.selectionHandler.getEdgeAt.apply(this.selectionHandler, arguments);
  if (edge !== undefined && edge.id !== undefined) {
    return edge.id;
  }
  return edge;
};
Network.prototype.selectNodes = function () {
  return this.selectionHandler.selectNodes.apply(this.selectionHandler, arguments);
};
Network.prototype.selectEdges = function () {
  return this.selectionHandler.selectEdges.apply(this.selectionHandler, arguments);
};
Network.prototype.unselectAll = function () {
  this.selectionHandler.unselectAll.apply(this.selectionHandler, arguments);
  this.redraw();
};
Network.prototype.redraw = function () {
  return this.renderer.redraw.apply(this.renderer, arguments);
};
Network.prototype.getScale = function () {
  return this.view.getScale.apply(this.view, arguments);
};
Network.prototype.getViewPosition = function () {
  return this.view.getViewPosition.apply(this.view, arguments);
};
Network.prototype.fit = function () {
  return this.view.fit.apply(this.view, arguments);
};
Network.prototype.moveTo = function () {
  return this.view.moveTo.apply(this.view, arguments);
};
Network.prototype.focus = function () {
  return this.view.focus.apply(this.view, arguments);
};
Network.prototype.releaseNode = function () {
  return this.view.releaseNode.apply(this.view, arguments);
};
Network.prototype.getOptionsFromConfigurator = function () {
  var options = {};
  if (this.configurator) {
    options = this.configurator.getOptions.apply(this.configurator);
  }
  return options;
};

module.exports = Network;

/***/ }),
/* 183 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


/**
 * Canvas shapes used by Network
 */
if (typeof CanvasRenderingContext2D !== 'undefined') {

  /**
   * Draw a circle shape
   *
   * @param {number} x
   * @param {number} y
   * @param {number} r
   */
  CanvasRenderingContext2D.prototype.circle = function (x, y, r) {
    this.beginPath();
    this.arc(x, y, r, 0, 2 * Math.PI, false);
    this.closePath();
  };

  /**
   * Draw a square shape
   * @param {number} x horizontal center
   * @param {number} y vertical center
   * @param {number} r   size, width and height of the square
   */
  CanvasRenderingContext2D.prototype.square = function (x, y, r) {
    this.beginPath();
    this.rect(x - r, y - r, r * 2, r * 2);
    this.closePath();
  };

  /**
   * Draw a triangle shape
   * @param {number} x horizontal center
   * @param {number} y vertical center
   * @param {number} r   radius, half the length of the sides of the triangle
   */
  CanvasRenderingContext2D.prototype.triangle = function (x, y, r) {
    // http://en.wikipedia.org/wiki/Equilateral_triangle
    this.beginPath();

    // the change in radius and the offset is here to center the shape
    r *= 1.15;
    y += 0.275 * r;

    var s = r * 2;
    var s2 = s / 2;
    var ir = Math.sqrt(3) / 6 * s; // radius of inner circle
    var h = Math.sqrt(s * s - s2 * s2); // height


    this.moveTo(x, y - (h - ir));
    this.lineTo(x + s2, y + ir);
    this.lineTo(x - s2, y + ir);
    this.lineTo(x, y - (h - ir));
    this.closePath();
  };

  /**
   * Draw a triangle shape in downward orientation
   * @param {number} x horizontal center
   * @param {number} y vertical center
   * @param {number} r radius
   */
  CanvasRenderingContext2D.prototype.triangleDown = function (x, y, r) {
    // http://en.wikipedia.org/wiki/Equilateral_triangle
    this.beginPath();

    // the change in radius and the offset is here to center the shape
    r *= 1.15;
    y -= 0.275 * r;

    var s = r * 2;
    var s2 = s / 2;
    var ir = Math.sqrt(3) / 6 * s; // radius of inner circle
    var h = Math.sqrt(s * s - s2 * s2); // height

    this.moveTo(x, y + (h - ir));
    this.lineTo(x + s2, y - ir);
    this.lineTo(x - s2, y - ir);
    this.lineTo(x, y + (h - ir));
    this.closePath();
  };

  /**
   * Draw a star shape, a star with 5 points
   * @param {number} x horizontal center
   * @param {number} y vertical center
   * @param {number} r   radius, half the length of the sides of the triangle
   */
  CanvasRenderingContext2D.prototype.star = function (x, y, r) {
    // http://www.html5canvastutorials.com/labs/html5-canvas-star-spinner/
    this.beginPath();

    // the change in radius and the offset is here to center the shape
    r *= 0.82;
    y += 0.1 * r;

    for (var n = 0; n < 10; n++) {
      var radius = n % 2 === 0 ? r * 1.3 : r * 0.5;
      this.lineTo(x + radius * Math.sin(n * 2 * Math.PI / 10), y - radius * Math.cos(n * 2 * Math.PI / 10));
    }

    this.closePath();
  };

  /**
   * Draw a Diamond shape
   * @param {number} x horizontal center
   * @param {number} y vertical center
   * @param {number} r   radius, half the length of the sides of the triangle
   */
  CanvasRenderingContext2D.prototype.diamond = function (x, y, r) {
    // http://www.html5canvastutorials.com/labs/html5-canvas-star-spinner/
    this.beginPath();

    this.lineTo(x, y + r);
    this.lineTo(x + r, y);
    this.lineTo(x, y - r);
    this.lineTo(x - r, y);

    this.closePath();
  };

  /**
   * http://stackoverflow.com/questions/1255512/how-to-draw-a-rounded-rectangle-on-html-canvas
   *
   * @param {number} x
   * @param {number} y
   * @param {number} w
   * @param {number} h
   * @param {number} r
   */
  CanvasRenderingContext2D.prototype.roundRect = function (x, y, w, h, r) {
    var r2d = Math.PI / 180;
    if (w - 2 * r < 0) {
      r = w / 2;
    } //ensure that the radius isn't too large for x
    if (h - 2 * r < 0) {
      r = h / 2;
    } //ensure that the radius isn't too large for y
    this.beginPath();
    this.moveTo(x + r, y);
    this.lineTo(x + w - r, y);
    this.arc(x + w - r, y + r, r, r2d * 270, r2d * 360, false);
    this.lineTo(x + w, y + h - r);
    this.arc(x + w - r, y + h - r, r, 0, r2d * 90, false);
    this.lineTo(x + r, y + h);
    this.arc(x + r, y + h - r, r, r2d * 90, r2d * 180, false);
    this.lineTo(x, y + r);
    this.arc(x + r, y + r, r, r2d * 180, r2d * 270, false);
    this.closePath();
  };

  /**
   * http://stackoverflow.com/questions/2172798/how-to-draw-an-oval-in-html5-canvas
   *
   * Postfix '_vis' added to discern it from standard method ellipse().
   *
   * @param {number} x
   * @param {number} y
   * @param {number} w
   * @param {number} h
   */
  CanvasRenderingContext2D.prototype.ellipse_vis = function (x, y, w, h) {
    var kappa = .5522848,
        ox = w / 2 * kappa,
        // control point offset horizontal
    oy = h / 2 * kappa,
        // control point offset vertical
    xe = x + w,
        // x-end
    ye = y + h,
        // y-end
    xm = x + w / 2,
        // x-middle
    ym = y + h / 2; // y-middle

    this.beginPath();
    this.moveTo(x, ym);
    this.bezierCurveTo(x, ym - oy, xm - ox, y, xm, y);
    this.bezierCurveTo(xm + ox, y, xe, ym - oy, xe, ym);
    this.bezierCurveTo(xe, ym + oy, xm + ox, ye, xm, ye);
    this.bezierCurveTo(xm - ox, ye, x, ym + oy, x, ym);
    this.closePath();
  };

  /**
   * http://stackoverflow.com/questions/2172798/how-to-draw-an-oval-in-html5-canvas
   *
   * @param {number} x
   * @param {number} y
   * @param {number} w
   * @param {number} h
   */
  CanvasRenderingContext2D.prototype.database = function (x, y, w, h) {
    var f = 1 / 3;
    var wEllipse = w;
    var hEllipse = h * f;

    var kappa = .5522848,
        ox = wEllipse / 2 * kappa,
        // control point offset horizontal
    oy = hEllipse / 2 * kappa,
        // control point offset vertical
    xe = x + wEllipse,
        // x-end
    ye = y + hEllipse,
        // y-end
    xm = x + wEllipse / 2,
        // x-middle
    ym = y + hEllipse / 2,
        // y-middle
    ymb = y + (h - hEllipse / 2),
        // y-midlle, bottom ellipse
    yeb = y + h; // y-end, bottom ellipse

    this.beginPath();
    this.moveTo(xe, ym);

    this.bezierCurveTo(xe, ym + oy, xm + ox, ye, xm, ye);
    this.bezierCurveTo(xm - ox, ye, x, ym + oy, x, ym);

    this.bezierCurveTo(x, ym - oy, xm - ox, y, xm, y);
    this.bezierCurveTo(xm + ox, y, xe, ym - oy, xe, ym);

    this.lineTo(xe, ymb);

    this.bezierCurveTo(xe, ymb + oy, xm + ox, yeb, xm, yeb);
    this.bezierCurveTo(xm - ox, yeb, x, ymb + oy, x, ymb);

    this.lineTo(x, ym);
  };

  /**
   * Sets up the dashedLine functionality for drawing
   * Original code came from http://stackoverflow.com/questions/4576724/dotted-stroke-in-canvas
   * @author David Jordan
   * @date 2012-08-08
   *
   * @param {number} x
   * @param {number} y
   * @param {number} x2
   * @param {number} y2
   * @param {string} pattern
   */
  CanvasRenderingContext2D.prototype.dashedLine = function (x, y, x2, y2, pattern) {
    this.beginPath();
    this.moveTo(x, y);

    var patternLength = pattern.length;
    var dx = x2 - x;
    var dy = y2 - y;
    var slope = dy / dx;
    var distRemaining = Math.sqrt(dx * dx + dy * dy);
    var patternIndex = 0;
    var draw = true;
    var xStep = 0;
    var dashLength = pattern[0];

    while (distRemaining >= 0.1) {
      dashLength = pattern[patternIndex++ % patternLength];
      if (dashLength > distRemaining) {
        dashLength = distRemaining;
      }

      xStep = Math.sqrt(dashLength * dashLength / (1 + slope * slope));
      xStep = dx < 0 ? -xStep : xStep;
      x += xStep;
      y += slope * xStep;

      if (draw === true) {
        this.lineTo(x, y);
      } else {
        this.moveTo(x, y);
      }

      distRemaining -= dashLength;
      draw = !draw;
    }
  };

  /**
   * Draw a Hexagon shape with 6 sides
   * @param {Number} x horizontal center
   * @param {Number} y vertical center
   * @param {Number} r   radius
   */
  CanvasRenderingContext2D.prototype.hexagon = function (x, y, r) {
    this.beginPath();
    var sides = 6;
    var a = Math.PI * 2 / sides;
    this.moveTo(x + r, y);
    for (var i = 1; i < sides; i++) {
      this.lineTo(x + r * Math.cos(a * i), y + r * Math.sin(a * i));
    }
    this.closePath();
  };
}

/***/ }),
/* 184 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


// English
exports['en'] = {
  edit: 'Edit',
  del: 'Delete selected',
  back: 'Back',
  addNode: 'Add Node',
  addEdge: 'Add Edge',
  editNode: 'Edit Node',
  editEdge: 'Edit Edge',
  addDescription: 'Click in an empty space to place a new node.',
  edgeDescription: 'Click on a node and drag the edge to another node to connect them.',
  editEdgeDescription: 'Click on the control points and drag them to a node to connect to it.',
  createEdgeError: 'Cannot link edges to a cluster.',
  deleteClusterError: 'Clusters cannot be deleted.',
  editClusterError: 'Clusters cannot be edited.'
};
exports['en_EN'] = exports['en'];
exports['en_US'] = exports['en'];

// German
exports['de'] = {
  edit: 'Editieren',
  del: 'L\xF6sche Auswahl',
  back: 'Zur\xFCck',
  addNode: 'Knoten hinzuf\xFCgen',
  addEdge: 'Kante hinzuf\xFCgen',
  editNode: 'Knoten editieren',
  editEdge: 'Kante editieren',
  addDescription: 'Klicke auf eine freie Stelle, um einen neuen Knoten zu plazieren.',
  edgeDescription: 'Klicke auf einen Knoten und ziehe die Kante zu einem anderen Knoten, um diese zu verbinden.',
  editEdgeDescription: 'Klicke auf die Verbindungspunkte und ziehe diese auf einen Knoten, um sie zu verbinden.',
  createEdgeError: 'Es ist nicht m\xF6glich, Kanten mit Clustern zu verbinden.',
  deleteClusterError: 'Cluster k\xF6nnen nicht gel\xF6scht werden.',
  editClusterError: 'Cluster k\xF6nnen nicht editiert werden.'
};
exports['de_DE'] = exports['de'];

// Spanish
exports['es'] = {
  edit: 'Editar',
  del: 'Eliminar selecci\xF3n',
  back: '\xC1tras',
  addNode: 'A\xF1adir nodo',
  addEdge: 'A\xF1adir arista',
  editNode: 'Editar nodo',
  editEdge: 'Editar arista',
  addDescription: 'Haga clic en un lugar vac\xEDo para colocar un nuevo nodo.',
  edgeDescription: 'Haga clic en un nodo y arrastre la arista hacia otro nodo para conectarlos.',
  editEdgeDescription: 'Haga clic en un punto de control y arrastrelo a un nodo para conectarlo.',
  createEdgeError: 'No se puede conectar una arista a un grupo.',
  deleteClusterError: 'No es posible eliminar grupos.',
  editClusterError: 'No es posible editar grupos.'
};
exports['es_ES'] = exports['es'];

//Italiano
exports['it'] = {
  edit: 'Modifica',
  del: 'Cancella la selezione',
  back: 'Indietro',
  addNode: 'Aggiungi un nodo',
  addEdge: 'Aggiungi un vertice',
  editNode: 'Modifica il nodo',
  editEdge: 'Modifica il vertice',
  addDescription: 'Clicca per aggiungere un nuovo nodo',
  edgeDescription: 'Clicca su un nodo e trascinalo ad un altro nodo per connetterli.',
  editEdgeDescription: 'Clicca sui Punti di controllo e trascinali ad un nodo per connetterli.',
  createEdgeError: 'Non si possono collegare vertici ad un cluster',
  deleteClusterError: 'I cluster non possono essere cancellati',
  editClusterError: 'I clusters non possono essere modificati.'
};
exports['it_IT'] = exports['it'];

// Dutch
exports['nl'] = {
  edit: 'Wijzigen',
  del: 'Selectie verwijderen',
  back: 'Terug',
  addNode: 'Node toevoegen',
  addEdge: 'Link toevoegen',
  editNode: 'Node wijzigen',
  editEdge: 'Link wijzigen',
  addDescription: 'Klik op een leeg gebied om een nieuwe node te maken.',
  edgeDescription: 'Klik op een node en sleep de link naar een andere node om ze te verbinden.',
  editEdgeDescription: 'Klik op de verbindingspunten en sleep ze naar een node om daarmee te verbinden.',
  createEdgeError: 'Kan geen link maken naar een cluster.',
  deleteClusterError: 'Clusters kunnen niet worden verwijderd.',
  editClusterError: 'Clusters kunnen niet worden aangepast.'
};
exports['nl_NL'] = exports['nl'];
exports['nl_BE'] = exports['nl'];

// Portuguese Brazil
exports['pt-br'] = {
  edit: 'Editar',
  del: 'Remover selecionado',
  back: 'Voltar',
  addNode: 'Adicionar nó',
  addEdge: 'Adicionar aresta',
  editNode: 'Editar nó',
  editEdge: 'Editar aresta',
  addDescription: 'Clique em um espaço em branco para adicionar um novo nó',
  edgeDescription: 'Clique em um nó e arraste a aresta até outro nó para conectá-los',
  editEdgeDescription: 'Clique nos pontos de controle e os arraste para um nó para conectá-los',
  createEdgeError: 'Não foi possível linkar arestas a um cluster.',
  deleteClusterError: 'Clusters não puderam ser removidos.',
  editClusterError: 'Clusters não puderam ser editados.'
};
exports['pt-BR'] = exports['pt-br'];
exports['pt_BR'] = exports['pt-br'];
exports['pt_br'] = exports['pt-br'];

// Russian
exports['ru'] = {
  edit: 'Редактировать',
  del: 'Удалить выбранное',
  back: 'Назад',
  addNode: 'Добавить узел',
  addEdge: 'Добавить ребро',
  editNode: 'Редактировать узел',
  editEdge: 'Редактировать ребро',
  addDescription: 'Кликните в свободное место, чтобы добавить новый узел.',
  edgeDescription: 'Кликните на узел и протяните ребро к другому узлу, чтобы соединить их.',
  editEdgeDescription: 'Кликните на контрольные точки и перетащите их в узел, чтобы подключиться к нему.',
  createEdgeError: 'Невозможно соединить ребра в кластер.',
  deleteClusterError: 'Кластеры не могут быть удалены',
  editClusterError: 'Кластеры недоступны для редактирования.'
};
exports['ru_RU'] = exports['ru'];

// Chinese
exports['cn'] = {
  edit: '编辑',
  del: '删除选定',
  back: '返回',
  addNode: '添加节点',
  addEdge: '添加连接线',
  editNode: '编辑节点',
  editEdge: '编辑连接线',
  addDescription: '单击空白处放置新节点。',
  edgeDescription: '单击某个节点并将该连接线拖动到另一个节点以连接它们。',
  editEdgeDescription: '单击控制节点并将它们拖到节点上连接。',
  createEdgeError: '无法将连接线连接到群集。',
  deleteClusterError: '无法删除群集。',
  editClusterError: '无法编辑群集。'
};
exports['zh_CN'] = exports['cn'];

/***/ }),
/* 185 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Associates a canvas to a given image, containing a number of renderings
 * of the image at various sizes.
 *
 * This technique is known as 'mipmapping'.
 *
 * NOTE: Images can also be of type 'data:svg+xml`. This code also works
 *       for svg, but the mipmapping may not be necessary.
 *
 * @param {Image} image
 */
var CachedImage = function () {
  /**
   * @ignore
   */
  function CachedImage() {
    (0, _classCallCheck3['default'])(this, CachedImage);
    // eslint-disable-line no-unused-vars
    this.NUM_ITERATIONS = 4; // Number of items in the coordinates array

    this.image = new Image();
    this.canvas = document.createElement('canvas');
  }

  /**
   * Called when the image has been successfully loaded.
   */


  (0, _createClass3['default'])(CachedImage, [{
    key: 'init',
    value: function init() {
      if (this.initialized()) return;

      this.src = this.image.src; // For same interface with Image
      var w = this.image.width;
      var h = this.image.height;

      // Ease external access
      this.width = w;
      this.height = h;

      var h2 = Math.floor(h / 2);
      var h4 = Math.floor(h / 4);
      var h8 = Math.floor(h / 8);
      var h16 = Math.floor(h / 16);

      var w2 = Math.floor(w / 2);
      var w4 = Math.floor(w / 4);
      var w8 = Math.floor(w / 8);
      var w16 = Math.floor(w / 16);

      // Make canvas as small as possible
      this.canvas.width = 3 * w4;
      this.canvas.height = h2;

      // Coordinates and sizes of images contained in the canvas
      // Values per row:  [top x, left y, width, height]

      this.coordinates = [[0, 0, w2, h2], [w2, 0, w4, h4], [w2, h4, w8, h8], [5 * w8, h4, w16, h16]];

      this._fillMipMap();
    }

    /**
     * @return {Boolean} true if init() has been called, false otherwise.
     */

  }, {
    key: 'initialized',
    value: function initialized() {
      return this.coordinates !== undefined;
    }

    /**
     * Redraw main image in various sizes to the context.
     *
     * The rationale behind this is to reduce artefacts due to interpolation
     * at differing zoom levels.
     *
     * Source: http://stackoverflow.com/q/18761404/1223531
     *
     * This methods takes the resizing out of the drawing loop, in order to
     * reduce performance overhead.
     *
     * TODO: The code assumes that a 2D context can always be gotten. This is
     *       not necessarily true! OTOH, if not true then usage of this class
     *       is senseless.
     *
     * @private
     */

  }, {
    key: '_fillMipMap',
    value: function _fillMipMap() {
      var ctx = this.canvas.getContext('2d');

      // First zoom-level comes from the image
      var to = this.coordinates[0];
      ctx.drawImage(this.image, to[0], to[1], to[2], to[3]);

      // The rest are copy actions internal to the canvas/context
      for (var iterations = 1; iterations < this.NUM_ITERATIONS; iterations++) {
        var from = this.coordinates[iterations - 1];
        var _to = this.coordinates[iterations];

        ctx.drawImage(this.canvas, from[0], from[1], from[2], from[3], _to[0], _to[1], _to[2], _to[3]);
      }
    }

    /**
     * Draw the image, using the mipmap if necessary.
     *
     * MipMap is only used if param factor > 2; otherwise, original bitmap
     * is resized. This is also used to skip mipmap usage, e.g. by setting factor = 1
     *
     * Credits to 'Alex de Mulder' for original implementation.
     *
     * @param {CanvasRenderingContext2D} ctx  context on which to draw zoomed image
     * @param {Float} factor scale factor at which to draw
     * @param {number} left
     * @param {number} top
     * @param {number} width
     * @param {number} height
     */

  }, {
    key: 'drawImageAtPosition',
    value: function drawImageAtPosition(ctx, factor, left, top, width, height) {

      if (!this.initialized()) return; //can't draw image yet not intialized

      if (factor > 2) {
        // Determine which zoomed image to use
        factor *= 0.5;
        var iterations = 0;
        while (factor > 2 && iterations < this.NUM_ITERATIONS) {
          factor *= 0.5;
          iterations += 1;
        }

        if (iterations >= this.NUM_ITERATIONS) {
          iterations = this.NUM_ITERATIONS - 1;
        }
        //console.log("iterations: " + iterations);

        var from = this.coordinates[iterations];
        ctx.drawImage(this.canvas, from[0], from[1], from[2], from[3], left, top, width, height);
      } else {
        // Draw image directly
        ctx.drawImage(this.image, left, top, width, height);
      }
    }
  }]);
  return CachedImage;
}();

exports['default'] = CachedImage;

/***/ }),
/* 186 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

var util = __webpack_require__(2);

/**
 * This class can store groups and options specific for groups.
 */

var Groups = function () {
  /**
   * @ignore
   */
  function Groups() {
    (0, _classCallCheck3["default"])(this, Groups);

    this.clear();
    this.defaultIndex = 0;
    this.groupsArray = [];
    this.groupIndex = 0;

    this.defaultGroups = [{ border: "#2B7CE9", background: "#97C2FC", highlight: { border: "#2B7CE9", background: "#D2E5FF" }, hover: { border: "#2B7CE9", background: "#D2E5FF" } }, // 0: blue
    { border: "#FFA500", background: "#FFFF00", highlight: { border: "#FFA500", background: "#FFFFA3" }, hover: { border: "#FFA500", background: "#FFFFA3" } }, // 1: yellow
    { border: "#FA0A10", background: "#FB7E81", highlight: { border: "#FA0A10", background: "#FFAFB1" }, hover: { border: "#FA0A10", background: "#FFAFB1" } }, // 2: red
    { border: "#41A906", background: "#7BE141", highlight: { border: "#41A906", background: "#A1EC76" }, hover: { border: "#41A906", background: "#A1EC76" } }, // 3: green
    { border: "#E129F0", background: "#EB7DF4", highlight: { border: "#E129F0", background: "#F0B3F5" }, hover: { border: "#E129F0", background: "#F0B3F5" } }, // 4: magenta
    { border: "#7C29F0", background: "#AD85E4", highlight: { border: "#7C29F0", background: "#D3BDF0" }, hover: { border: "#7C29F0", background: "#D3BDF0" } }, // 5: purple
    { border: "#C37F00", background: "#FFA807", highlight: { border: "#C37F00", background: "#FFCA66" }, hover: { border: "#C37F00", background: "#FFCA66" } }, // 6: orange
    { border: "#4220FB", background: "#6E6EFD", highlight: { border: "#4220FB", background: "#9B9BFD" }, hover: { border: "#4220FB", background: "#9B9BFD" } }, // 7: darkblue
    { border: "#FD5A77", background: "#FFC0CB", highlight: { border: "#FD5A77", background: "#FFD1D9" }, hover: { border: "#FD5A77", background: "#FFD1D9" } }, // 8: pink
    { border: "#4AD63A", background: "#C2FABC", highlight: { border: "#4AD63A", background: "#E6FFE3" }, hover: { border: "#4AD63A", background: "#E6FFE3" } }, // 9: mint

    { border: "#990000", background: "#EE0000", highlight: { border: "#BB0000", background: "#FF3333" }, hover: { border: "#BB0000", background: "#FF3333" } }, // 10:bright red

    { border: "#FF6000", background: "#FF6000", highlight: { border: "#FF6000", background: "#FF6000" }, hover: { border: "#FF6000", background: "#FF6000" } }, // 12: real orange
    { border: "#97C2FC", background: "#2B7CE9", highlight: { border: "#D2E5FF", background: "#2B7CE9" }, hover: { border: "#D2E5FF", background: "#2B7CE9" } }, // 13: blue
    { border: "#399605", background: "#255C03", highlight: { border: "#399605", background: "#255C03" }, hover: { border: "#399605", background: "#255C03" } }, // 14: green
    { border: "#B70054", background: "#FF007E", highlight: { border: "#B70054", background: "#FF007E" }, hover: { border: "#B70054", background: "#FF007E" } }, // 15: magenta
    { border: "#AD85E4", background: "#7C29F0", highlight: { border: "#D3BDF0", background: "#7C29F0" }, hover: { border: "#D3BDF0", background: "#7C29F0" } }, // 16: purple
    { border: "#4557FA", background: "#000EA1", highlight: { border: "#6E6EFD", background: "#000EA1" }, hover: { border: "#6E6EFD", background: "#000EA1" } }, // 17: darkblue
    { border: "#FFC0CB", background: "#FD5A77", highlight: { border: "#FFD1D9", background: "#FD5A77" }, hover: { border: "#FFD1D9", background: "#FD5A77" } }, // 18: pink
    { border: "#C2FABC", background: "#74D66A", highlight: { border: "#E6FFE3", background: "#74D66A" }, hover: { border: "#E6FFE3", background: "#74D66A" } }, // 19: mint

    { border: "#EE0000", background: "#990000", highlight: { border: "#FF3333", background: "#BB0000" }, hover: { border: "#FF3333", background: "#BB0000" } // 20:bright red
    }];

    this.options = {};
    this.defaultOptions = {
      useDefaultGroups: true
    };
    util.extend(this.options, this.defaultOptions);
  }

  /**
   *
   * @param {Object} options
   */


  (0, _createClass3["default"])(Groups, [{
    key: "setOptions",
    value: function setOptions(options) {
      var optionFields = ['useDefaultGroups'];

      if (options !== undefined) {
        for (var groupName in options) {
          if (options.hasOwnProperty(groupName)) {
            if (optionFields.indexOf(groupName) === -1) {
              var group = options[groupName];
              this.add(groupName, group);
            }
          }
        }
      }
    }

    /**
     * Clear all groups
     */

  }, {
    key: "clear",
    value: function clear() {
      this.groups = {};
      this.groupsArray = [];
    }

    /**
     * Get group options of a groupname.
     * If groupname is not found, a new group may be created.
     *
     * @param {*}       groupname     Can be a number, string, Date, etc.
     * @param {boolean} [shouldCreate=true] If true, create a new group
     * @return {Object} The found or created group
     */

  }, {
    key: "get",
    value: function get(groupname) {
      var shouldCreate = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

      var group = this.groups[groupname];

      if (group === undefined && shouldCreate) {
        if (this.options.useDefaultGroups === false && this.groupsArray.length > 0) {
          // create new group
          var index = this.groupIndex % this.groupsArray.length;
          this.groupIndex++;
          group = {};
          group.color = this.groups[this.groupsArray[index]];
          this.groups[groupname] = group;
        } else {
          // create new group
          var _index = this.defaultIndex % this.defaultGroups.length;
          this.defaultIndex++;
          group = {};
          group.color = this.defaultGroups[_index];
          this.groups[groupname] = group;
        }
      }

      return group;
    }

    /**
     * Add a custom group style
     * @param {string} groupName
     * @param {Object} style       An object containing borderColor,
     *                             backgroundColor, etc.
     * @return {Object} group      The created group object
     */

  }, {
    key: "add",
    value: function add(groupName, style) {
      this.groups[groupName] = style;
      this.groupsArray.push(groupName);
      return style;
    }
  }]);
  return Groups;
}();

exports["default"] = Groups;

/***/ }),
/* 187 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var DataSet = __webpack_require__(11);
var DataView = __webpack_require__(12);
var Node = __webpack_require__(47)['default'];

/**
 * Handler for Nodes
 */

var NodesHandler = function () {
  /**
   * @param {Object} body
   * @param {Images} images
   * @param {Array.<Group>} groups
   * @param {LayoutEngine} layoutEngine
   */
  function NodesHandler(body, images, groups, layoutEngine) {
    var _this = this;

    (0, _classCallCheck3['default'])(this, NodesHandler);

    this.body = body;
    this.images = images;
    this.groups = groups;
    this.layoutEngine = layoutEngine;

    // create the node API in the body container
    this.body.functions.createNode = this.create.bind(this);

    this.nodesListeners = {
      add: function add(event, params) {
        _this.add(params.items);
      },
      update: function update(event, params) {
        _this.update(params.items, params.data, params.oldData);
      },
      remove: function remove(event, params) {
        _this.remove(params.items);
      }
    };

    this.defaultOptions = {
      borderWidth: 1,
      borderWidthSelected: 2,
      brokenImage: undefined,
      color: {
        border: '#2B7CE9',
        background: '#97C2FC',
        highlight: {
          border: '#2B7CE9',
          background: '#D2E5FF'
        },
        hover: {
          border: '#2B7CE9',
          background: '#D2E5FF'
        }
      },
      fixed: {
        x: false,
        y: false
      },
      font: {
        color: '#343434',
        size: 14, // px
        face: 'arial',
        background: 'none',
        strokeWidth: 0, // px
        strokeColor: '#ffffff',
        align: 'center',
        vadjust: 0,
        multi: false,
        bold: {
          mod: 'bold'
        },
        boldital: {
          mod: 'bold italic'
        },
        ital: {
          mod: 'italic'
        },
        mono: {
          mod: '',
          size: 15, // px
          face: 'monospace',
          vadjust: 2
        }
      },
      group: undefined,
      hidden: false,
      icon: {
        face: 'FontAwesome', //'FontAwesome',
        code: undefined, //'\uf007',
        size: 50, //50,
        color: '#2B7CE9' //'#aa00ff'
      },
      image: undefined, // --> URL
      label: undefined,
      labelHighlightBold: true,
      level: undefined,
      margin: {
        top: 5,
        right: 5,
        bottom: 5,
        left: 5
      },
      mass: 1,
      physics: true,
      scaling: {
        min: 10,
        max: 30,
        label: {
          enabled: false,
          min: 14,
          max: 30,
          maxVisible: 30,
          drawThreshold: 5
        },
        customScalingFunction: function customScalingFunction(min, max, total, value) {
          if (max === min) {
            return 0.5;
          } else {
            var scale = 1 / (max - min);
            return Math.max(0, (value - min) * scale);
          }
        }
      },
      shadow: {
        enabled: false,
        color: 'rgba(0,0,0,0.5)',
        size: 10,
        x: 5,
        y: 5
      },
      shape: 'ellipse',
      shapeProperties: {
        borderDashes: false, // only for borders
        borderRadius: 6, // only for box shape
        interpolation: true, // only for image and circularImage shapes
        useImageSize: false, // only for image and circularImage shapes
        useBorderWithImage: false // only for image shape
      },
      size: 25,
      title: undefined,
      value: undefined,
      x: undefined,
      y: undefined
    };

    // Protect from idiocy
    if (this.defaultOptions.mass <= 0) {
      throw 'Internal error: mass in defaultOptions of NodesHandler may not be zero or negative';
    }

    this.options = util.bridgeObject(this.defaultOptions);

    this.bindEventListeners();
  }

  /**
   * Binds event listeners
   */


  (0, _createClass3['default'])(NodesHandler, [{
    key: 'bindEventListeners',
    value: function bindEventListeners() {
      var _this2 = this;

      // refresh the nodes. Used when reverting from hierarchical layout
      this.body.emitter.on('refreshNodes', this.refresh.bind(this));
      this.body.emitter.on('refresh', this.refresh.bind(this));
      this.body.emitter.on('destroy', function () {
        util.forEach(_this2.nodesListeners, function (callback, event) {
          if (_this2.body.data.nodes) _this2.body.data.nodes.off(event, callback);
        });
        delete _this2.body.functions.createNode;
        delete _this2.nodesListeners.add;
        delete _this2.nodesListeners.update;
        delete _this2.nodesListeners.remove;
        delete _this2.nodesListeners;
      });
    }

    /**
     *
     * @param {Object} options
     */

  }, {
    key: 'setOptions',
    value: function setOptions(options) {
      if (options !== undefined) {
        Node.parseOptions(this.options, options);

        // update the shape in all nodes
        if (options.shape !== undefined) {
          for (var nodeId in this.body.nodes) {
            if (this.body.nodes.hasOwnProperty(nodeId)) {
              this.body.nodes[nodeId].updateShape();
            }
          }
        }

        // update the font in all nodes
        if (options.font !== undefined) {
          for (var _nodeId in this.body.nodes) {
            if (this.body.nodes.hasOwnProperty(_nodeId)) {
              this.body.nodes[_nodeId].updateLabelModule();
              this.body.nodes[_nodeId].needsRefresh();
            }
          }
        }

        // update the shape size in all nodes
        if (options.size !== undefined) {
          for (var _nodeId2 in this.body.nodes) {
            if (this.body.nodes.hasOwnProperty(_nodeId2)) {
              this.body.nodes[_nodeId2].needsRefresh();
            }
          }
        }

        // update the state of the variables if needed
        if (options.hidden !== undefined || options.physics !== undefined) {
          this.body.emitter.emit('_dataChanged');
        }
      }
    }

    /**
     * Set a data set with nodes for the network
     * @param {Array | DataSet | DataView} nodes         The data containing the nodes.
     * @param {boolean} [doNotEmit=false]
     * @private
     */

  }, {
    key: 'setData',
    value: function setData(nodes) {
      var doNotEmit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

      var oldNodesData = this.body.data.nodes;

      if (nodes instanceof DataSet || nodes instanceof DataView) {
        this.body.data.nodes = nodes;
      } else if (Array.isArray(nodes)) {
        this.body.data.nodes = new DataSet();
        this.body.data.nodes.add(nodes);
      } else if (!nodes) {
        this.body.data.nodes = new DataSet();
      } else {
        throw new TypeError('Array or DataSet expected');
      }

      if (oldNodesData) {
        // unsubscribe from old dataset
        util.forEach(this.nodesListeners, function (callback, event) {
          oldNodesData.off(event, callback);
        });
      }

      // remove drawn nodes
      this.body.nodes = {};

      if (this.body.data.nodes) {
        // subscribe to new dataset
        var me = this;
        util.forEach(this.nodesListeners, function (callback, event) {
          me.body.data.nodes.on(event, callback);
        });

        // draw all new nodes
        var ids = this.body.data.nodes.getIds();
        this.add(ids, true);
      }

      if (doNotEmit === false) {
        this.body.emitter.emit("_dataChanged");
      }
    }

    /**
     * Add nodes
     * @param {number[] | string[]} ids
     * @param {boolean} [doNotEmit=false]
     * @private
     */

  }, {
    key: 'add',
    value: function add(ids) {
      var doNotEmit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

      var id = void 0;
      var newNodes = [];
      for (var i = 0; i < ids.length; i++) {
        id = ids[i];
        var properties = this.body.data.nodes.get(id);
        var node = this.create(properties);
        newNodes.push(node);
        this.body.nodes[id] = node; // note: this may replace an existing node
      }

      this.layoutEngine.positionInitially(newNodes);

      if (doNotEmit === false) {
        this.body.emitter.emit("_dataChanged");
      }
    }

    /**
     * Update existing nodes, or create them when not yet existing
     * @param {number[] | string[]} ids id's of changed nodes
     * @param {Array} changedData array with changed data
     * @param {Array|undefined} oldData optional; array with previous data
     * @private
     */

  }, {
    key: 'update',
    value: function update(ids, changedData, oldData) {
      var nodes = this.body.nodes;
      var dataChanged = false;
      for (var i = 0; i < ids.length; i++) {
        var id = ids[i];
        var node = nodes[id];
        var data = changedData[i];
        if (node !== undefined) {
          // update node
          if (node.setOptions(data)) {
            dataChanged = true;
          }
        } else {
          dataChanged = true;
          // create node
          node = this.create(data);
          nodes[id] = node;
        }
      }

      if (!dataChanged && oldData !== undefined) {
        // Check for any changes which should trigger a layout recalculation
        // For now, this is just 'level' for hierarchical layout
        // Assumption: old and new data arranged in same order; at time of writing, this holds.
        dataChanged = changedData.some(function (newValue, index) {
          var oldValue = oldData[index];
          return oldValue && oldValue.level !== newValue.level;
        });
      }

      if (dataChanged === true) {
        this.body.emitter.emit("_dataChanged");
      } else {
        this.body.emitter.emit("_dataUpdated");
      }
    }

    /**
     * Remove existing nodes. If nodes do not exist, the method will just ignore it.
     * @param {number[] | string[]} ids
     * @private
     */

  }, {
    key: 'remove',
    value: function remove(ids) {
      var nodes = this.body.nodes;

      for (var i = 0; i < ids.length; i++) {
        var id = ids[i];
        delete nodes[id];
      }

      this.body.emitter.emit("_dataChanged");
    }

    /**
     * create a node
     * @param {Object} properties
     * @param {class} [constructorClass=Node.default]
     * @returns {*}
     */

  }, {
    key: 'create',
    value: function create(properties) {
      var constructorClass = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : Node;

      return new constructorClass(properties, this.body, this.images, this.groups, this.options, this.defaultOptions);
    }

    /**
     *
     * @param {boolean} [clearPositions=false]
     */

  }, {
    key: 'refresh',
    value: function refresh() {
      var _this3 = this;

      var clearPositions = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

      util.forEach(this.body.nodes, function (node, nodeId) {
        var data = _this3.body.data.nodes.get(nodeId);
        if (data !== undefined) {
          if (clearPositions === true) {
            node.setOptions({ x: null, y: null });
          }
          node.setOptions({ fixed: false });
          node.setOptions(data);
        }
      });
    }

    /**
     * Returns the positions of the nodes.
     * @param {Array.<Node.id>|String} [ids]  --> optional, can be array of nodeIds, can be string
     * @returns {{}}
     */

  }, {
    key: 'getPositions',
    value: function getPositions(ids) {
      var dataArray = {};
      if (ids !== undefined) {
        if (Array.isArray(ids) === true) {
          for (var i = 0; i < ids.length; i++) {
            if (this.body.nodes[ids[i]] !== undefined) {
              var node = this.body.nodes[ids[i]];
              dataArray[ids[i]] = { x: Math.round(node.x), y: Math.round(node.y) };
            }
          }
        } else {
          if (this.body.nodes[ids] !== undefined) {
            var _node = this.body.nodes[ids];
            dataArray[ids] = { x: Math.round(_node.x), y: Math.round(_node.y) };
          }
        }
      } else {
        for (var _i = 0; _i < this.body.nodeIndices.length; _i++) {
          var _node2 = this.body.nodes[this.body.nodeIndices[_i]];
          dataArray[this.body.nodeIndices[_i]] = { x: Math.round(_node2.x), y: Math.round(_node2.y) };
        }
      }
      return dataArray;
    }

    /**
     * Load the XY positions of the nodes into the dataset.
     */

  }, {
    key: 'storePositions',
    value: function storePositions() {
      // todo: add support for clusters and hierarchical.
      var dataArray = [];
      var dataset = this.body.data.nodes.getDataSet();

      for (var nodeId in dataset._data) {
        if (dataset._data.hasOwnProperty(nodeId)) {
          var node = this.body.nodes[nodeId];
          if (dataset._data[nodeId].x != Math.round(node.x) || dataset._data[nodeId].y != Math.round(node.y)) {
            dataArray.push({ id: node.id, x: Math.round(node.x), y: Math.round(node.y) });
          }
        }
      }
      dataset.update(dataArray);
    }

    /**
     * get the bounding box of a node.
     * @param {Node.id} nodeId
     * @returns {j|*}
     */

  }, {
    key: 'getBoundingBox',
    value: function getBoundingBox(nodeId) {
      if (this.body.nodes[nodeId] !== undefined) {
        return this.body.nodes[nodeId].shape.boundingBox;
      }
    }

    /**
     * Get the Ids of nodes connected to this node.
     * @param {Node.id} nodeId
     * @param {'to'|'from'|undefined} direction values 'from' and 'to' select respectively parent and child nodes only.
     *                                          Any other value returns both parent and child nodes.
     * @returns {Array}
     */

  }, {
    key: 'getConnectedNodes',
    value: function getConnectedNodes(nodeId, direction) {
      var nodeList = [];
      if (this.body.nodes[nodeId] !== undefined) {
        var node = this.body.nodes[nodeId];
        var nodeObj = {}; // used to quickly check if node already exists
        for (var i = 0; i < node.edges.length; i++) {
          var edge = node.edges[i];
          if (direction !== 'to' && edge.toId == node.id) {
            // these are double equals since ids can be numeric or string
            if (nodeObj[edge.fromId] === undefined) {
              nodeList.push(edge.fromId);
              nodeObj[edge.fromId] = true;
            }
          } else if (direction !== 'from' && edge.fromId == node.id) {
            // these are double equals since ids can be numeric or string
            if (nodeObj[edge.toId] === undefined) {
              nodeList.push(edge.toId);
              nodeObj[edge.toId] = true;
            }
          }
        }
      }
      return nodeList;
    }

    /**
     * Get the ids of the edges connected to this node.
     * @param {Node.id} nodeId
     * @returns {*}
     */

  }, {
    key: 'getConnectedEdges',
    value: function getConnectedEdges(nodeId) {
      var edgeList = [];
      if (this.body.nodes[nodeId] !== undefined) {
        var node = this.body.nodes[nodeId];
        for (var i = 0; i < node.edges.length; i++) {
          edgeList.push(node.edges[i].id);
        }
      } else {
        console.log("NodeId provided for getConnectedEdges does not exist. Provided: ", nodeId);
      }
      return edgeList;
    }

    /**
     * Move a node.
     *
     * @param {Node.id} nodeId
     * @param {number} x
     * @param {number} y
     */

  }, {
    key: 'moveNode',
    value: function moveNode(nodeId, x, y) {
      var _this4 = this;

      if (this.body.nodes[nodeId] !== undefined) {
        this.body.nodes[nodeId].x = Number(x);
        this.body.nodes[nodeId].y = Number(y);
        setTimeout(function () {
          _this4.body.emitter.emit("startSimulation");
        }, 0);
      } else {
        console.log("Node id supplied to moveNode does not exist. Provided: ", nodeId);
      }
    }
  }]);
  return NodesHandler;
}();

exports['default'] = NodesHandler;

/***/ }),
/* 188 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = { "default": __webpack_require__(189), __esModule: true };

/***/ }),
/* 189 */
/***/ (function(module, exports, __webpack_require__) {

__webpack_require__(49);
__webpack_require__(60);
module.exports = __webpack_require__(190);


/***/ }),
/* 190 */
/***/ (function(module, exports, __webpack_require__) {

var classof = __webpack_require__(86);
var ITERATOR = __webpack_require__(13)('iterator');
var Iterators = __webpack_require__(31);
module.exports = __webpack_require__(7).isIterable = function (it) {
  var O = Object(it);
  return O[ITERATOR] !== undefined
    || '@@iterator' in O
    // eslint-disable-next-line no-prototype-builtins
    || Iterators.hasOwnProperty(classof(O));
};


/***/ }),
/* 191 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var LabelAccumulator = __webpack_require__(192)['default'];
var ComponentUtil = __webpack_require__(48)['default'];

/**
 * Helper class for Label which explodes the label text into lines and blocks within lines
 *
 * @private
 */

var LabelSplitter = function () {

  /**
   * @param {CanvasRenderingContext2D} ctx Canvas rendering context
   * @param {Label} parent reference to the Label instance using current instance
   * @param {boolean} selected 
   * @param {boolean} hover
   */
  function LabelSplitter(ctx, parent, selected, hover) {
    var _this = this;

    (0, _classCallCheck3['default'])(this, LabelSplitter);

    this.ctx = ctx;
    this.parent = parent;

    /**
     * Callback to determine text width; passed to LabelAccumulator instance
     *
     * @param  {String} text string to determine width of
     * @param  {String} mod  font type to use for this text
     * @return {Object} { width, values} width in pixels and font attributes
     */
    var textWidth = function textWidth(text, mod) {
      if (text === undefined) return 0;

      // TODO: This can be done more efficiently with caching
      var values = _this.parent.getFormattingValues(ctx, selected, hover, mod);

      var width = 0;
      if (text !== '') {
        // NOTE: The following may actually be *incorrect* for the mod fonts!
        //       This returns the size with a regular font, bold etc. may
        //       have different sizes.
        var measure = _this.ctx.measureText(text);
        width = measure.width;
      }

      return { width: width, values: values };
    };

    this.lines = new LabelAccumulator(textWidth);
  }

  /**
   * Split passed text of a label into lines and blocks.
   *
   * # NOTE
   *
   * The handling of spacing is option dependent:
   *
   * - if `font.multi : false`, all spaces are retained
   * - if `font.multi : true`, every sequence of spaces is compressed to a single space
   *
   * This might not be the best way to do it, but this is as it has been working till now.
   * In order not to break existing functionality, for the time being this behaviour will
   * be retained in any code changes. 
   *
   * @param {string} text  text to split
   * @returns {Array<line>}
   */


  (0, _createClass3['default'])(LabelSplitter, [{
    key: 'process',
    value: function process(text) {
      if (!ComponentUtil.isValidLabel(text)) {
        return this.lines.finalize();
      }

      var font = this.parent.fontOptions;

      // Normalize the end-of-line's to a single representation - order important
      text = text.replace(/\r\n/g, '\n'); // Dos EOL's
      text = text.replace(/\r/g, '\n'); // Mac EOL's

      // Note that at this point, there can be no \r's in the text.
      // This is used later on splitStringIntoLines() to split multifont texts.

      var nlLines = String(text).split('\n');
      var lineCount = nlLines.length;

      if (font.multi) {
        // Multi-font case: styling tags active
        for (var i = 0; i < lineCount; i++) {
          var blocks = this.splitBlocks(nlLines[i], font.multi);
          // Post: Sequences of tabs and spaces are reduced to single space

          if (blocks === undefined) continue;

          if (blocks.length === 0) {
            this.lines.newLine("");
            continue;
          }

          if (font.maxWdt > 0) {
            // widthConstraint.maximum defined
            //console.log('Running widthConstraint multi, max: ' + this.fontOptions.maxWdt);
            for (var j = 0; j < blocks.length; j++) {
              var mod = blocks[j].mod;
              var _text = blocks[j].text;
              this.splitStringIntoLines(_text, mod, true);
            }
          } else {
            // widthConstraint.maximum NOT defined
            for (var _j = 0; _j < blocks.length; _j++) {
              var _mod = blocks[_j].mod;
              var _text2 = blocks[_j].text;
              this.lines.append(_text2, _mod);
            }
          }

          this.lines.newLine();
        }
      } else {
        // Single-font case
        if (font.maxWdt > 0) {
          // widthConstraint.maximum defined
          // console.log('Running widthConstraint normal, max: ' + this.fontOptions.maxWdt);
          for (var _i = 0; _i < lineCount; _i++) {
            this.splitStringIntoLines(nlLines[_i]);
          }
        } else {
          // widthConstraint.maximum NOT defined
          for (var _i2 = 0; _i2 < lineCount; _i2++) {
            this.lines.newLine(nlLines[_i2]);
          }
        }
      }

      return this.lines.finalize();
    }

    /**
     * normalize the markup system
     *
     * @param {boolean|'md'|'markdown'|'html'} markupSystem
     * @returns {string}
     */

  }, {
    key: 'decodeMarkupSystem',
    value: function decodeMarkupSystem(markupSystem) {
      var system = 'none';
      if (markupSystem === 'markdown' || markupSystem === 'md') {
        system = 'markdown';
      } else if (markupSystem === true || markupSystem === 'html') {
        system = 'html';
      }
      return system;
    }

    /**
     *
     * @param {string} text
     * @returns {Array}
     */

  }, {
    key: 'splitHtmlBlocks',
    value: function splitHtmlBlocks(text) {
      var blocks = [];

      // TODO: consolidate following + methods/closures with splitMarkdownBlocks()
      // NOTE: sequences of tabs and spaces are reduced to single space; scan usage of `this.spacing` within method
      var s = {
        bold: false,
        ital: false,
        mono: false,
        spacing: false,
        position: 0,
        buffer: "",
        modStack: []
      };

      s.mod = function () {
        return this.modStack.length === 0 ? 'normal' : this.modStack[0];
      };

      s.modName = function () {
        if (this.modStack.length === 0) return 'normal';else if (this.modStack[0] === 'mono') return 'mono';else {
          if (s.bold && s.ital) {
            return 'boldital';
          } else if (s.bold) {
            return 'bold';
          } else if (s.ital) {
            return 'ital';
          }
        }
      };

      s.emitBlock = function () {
        var override = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
        // eslint-disable-line no-unused-vars
        if (this.spacing) {
          this.add(" ");
          this.spacing = false;
        }
        if (this.buffer.length > 0) {
          blocks.push({ text: this.buffer, mod: this.modName() });
          this.buffer = "";
        }
      };

      s.add = function (text) {
        if (text === " ") {
          s.spacing = true;
        }
        if (s.spacing) {
          this.buffer += " ";
          this.spacing = false;
        }
        if (text != " ") {
          this.buffer += text;
        }
      };

      while (s.position < text.length) {
        var ch = text.charAt(s.position);
        if (/[ \t]/.test(ch)) {
          if (!s.mono) {
            s.spacing = true;
          } else {
            s.add(ch);
          }
        } else if (/</.test(ch)) {
          if (!s.mono && !s.bold && /<b>/.test(text.substr(s.position, 3))) {
            s.emitBlock();
            s.bold = true;
            s.modStack.unshift("bold");
            s.position += 2;
          } else if (!s.mono && !s.ital && /<i>/.test(text.substr(s.position, 3))) {
            s.emitBlock();
            s.ital = true;
            s.modStack.unshift("ital");
            s.position += 2;
          } else if (!s.mono && /<code>/.test(text.substr(s.position, 6))) {
            s.emitBlock();
            s.mono = true;
            s.modStack.unshift("mono");
            s.position += 5;
          } else if (!s.mono && s.mod() === 'bold' && /<\/b>/.test(text.substr(s.position, 4))) {
            s.emitBlock();
            s.bold = false;
            s.modStack.shift();
            s.position += 3;
          } else if (!s.mono && s.mod() === 'ital' && /<\/i>/.test(text.substr(s.position, 4))) {
            s.emitBlock();
            s.ital = false;
            s.modStack.shift();
            s.position += 3;
          } else if (s.mod() === 'mono' && /<\/code>/.test(text.substr(s.position, 7))) {
            s.emitBlock();
            s.mono = false;
            s.modStack.shift();
            s.position += 6;
          } else {
            s.add(ch);
          }
        } else if (/&/.test(ch)) {
          if (/&lt;/.test(text.substr(s.position, 4))) {
            s.add("<");
            s.position += 3;
          } else if (/&amp;/.test(text.substr(s.position, 5))) {
            s.add("&");
            s.position += 4;
          } else {
            s.add("&");
          }
        } else {
          s.add(ch);
        }
        s.position++;
      }
      s.emitBlock();
      return blocks;
    }

    /**
     *
     * @param {string} text
     * @returns {Array}
     */

  }, {
    key: 'splitMarkdownBlocks',
    value: function splitMarkdownBlocks(text) {
      var blocks = [];

      // TODO: consolidate following + methods/closures with splitHtmlBlocks()
      // NOTE: sequences of tabs and spaces are reduced to single space; scan usage of `this.spacing` within method
      var s = {
        bold: false,
        ital: false,
        mono: false,
        beginable: true,
        spacing: false,
        position: 0,
        buffer: "",
        modStack: []
      };

      s.mod = function () {
        return this.modStack.length === 0 ? 'normal' : this.modStack[0];
      };

      s.modName = function () {
        if (this.modStack.length === 0) return 'normal';else if (this.modStack[0] === 'mono') return 'mono';else {
          if (s.bold && s.ital) {
            return 'boldital';
          } else if (s.bold) {
            return 'bold';
          } else if (s.ital) {
            return 'ital';
          }
        }
      };

      s.emitBlock = function () {
        var override = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
        // eslint-disable-line no-unused-vars
        if (this.spacing) {
          this.add(" ");
          this.spacing = false;
        }
        if (this.buffer.length > 0) {
          blocks.push({ text: this.buffer, mod: this.modName() });
          this.buffer = "";
        }
      };

      s.add = function (text) {
        if (text === " ") {
          s.spacing = true;
        }
        if (s.spacing) {
          this.buffer += " ";
          this.spacing = false;
        }
        if (text != " ") {
          this.buffer += text;
        }
      };

      while (s.position < text.length) {
        var ch = text.charAt(s.position);
        if (/[ \t]/.test(ch)) {
          if (!s.mono) {
            s.spacing = true;
          } else {
            s.add(ch);
          }
          s.beginable = true;
        } else if (/\\/.test(ch)) {
          if (s.position < text.length + 1) {
            s.position++;
            ch = text.charAt(s.position);
            if (/ \t/.test(ch)) {
              s.spacing = true;
            } else {
              s.add(ch);
              s.beginable = false;
            }
          }
        } else if (!s.mono && !s.bold && (s.beginable || s.spacing) && /\*/.test(ch)) {
          s.emitBlock();
          s.bold = true;
          s.modStack.unshift("bold");
        } else if (!s.mono && !s.ital && (s.beginable || s.spacing) && /\_/.test(ch)) {
          s.emitBlock();
          s.ital = true;
          s.modStack.unshift("ital");
        } else if (!s.mono && (s.beginable || s.spacing) && /`/.test(ch)) {
          s.emitBlock();
          s.mono = true;
          s.modStack.unshift("mono");
        } else if (!s.mono && s.mod() === "bold" && /\*/.test(ch)) {
          if (s.position === text.length - 1 || /[.,_` \t\n]/.test(text.charAt(s.position + 1))) {
            s.emitBlock();
            s.bold = false;
            s.modStack.shift();
          } else {
            s.add(ch);
          }
        } else if (!s.mono && s.mod() === "ital" && /\_/.test(ch)) {
          if (s.position === text.length - 1 || /[.,*` \t\n]/.test(text.charAt(s.position + 1))) {
            s.emitBlock();
            s.ital = false;
            s.modStack.shift();
          } else {
            s.add(ch);
          }
        } else if (s.mono && s.mod() === "mono" && /`/.test(ch)) {
          if (s.position === text.length - 1 || /[.,*_ \t\n]/.test(text.charAt(s.position + 1))) {
            s.emitBlock();
            s.mono = false;
            s.modStack.shift();
          } else {
            s.add(ch);
          }
        } else {
          s.add(ch);
          s.beginable = false;
        }
        s.position++;
      }
      s.emitBlock();
      return blocks;
    }

    /**
     * Explodes a piece of text into single-font blocks using a given markup
     *
     * @param {string} text
     * @param {boolean|'md'|'markdown'|'html'} markupSystem
     * @returns {Array.<{text: string, mod: string}>}
     * @private
     */

  }, {
    key: 'splitBlocks',
    value: function splitBlocks(text, markupSystem) {
      var system = this.decodeMarkupSystem(markupSystem);
      if (system === 'none') {
        return [{
          text: text,
          mod: 'normal'
        }];
      } else if (system === 'markdown') {
        return this.splitMarkdownBlocks(text);
      } else if (system === 'html') {
        return this.splitHtmlBlocks(text);
      }
    }

    /**
     * @param {string} text
     * @returns {boolean} true if text length over the current max with
     * @private
     */

  }, {
    key: 'overMaxWidth',
    value: function overMaxWidth(text) {
      var width = this.ctx.measureText(text).width;
      return this.lines.curWidth() + width > this.parent.fontOptions.maxWdt;
    }

    /**
     * Determine the longest part of the sentence which still fits in the 
     * current max width.
     * 
     * @param {Array} words  Array of strings signifying a text lines
     * @return {number}      index of first item in string making string go over max
     * @private
     */

  }, {
    key: 'getLongestFit',
    value: function getLongestFit(words) {
      var text = '';
      var w = 0;

      while (w < words.length) {
        var pre = text === '' ? '' : ' ';
        var newText = text + pre + words[w];

        if (this.overMaxWidth(newText)) break;
        text = newText;
        w++;
      }

      return w;
    }

    /**
     * Determine the longest part of the string which still fits in the
     * current max width.
     * 
     * @param {Array} words Array of strings signifying a text lines
     * @return {number} index of first item in string making string go over max
     */

  }, {
    key: 'getLongestFitWord',
    value: function getLongestFitWord(words) {
      var w = 0;

      while (w < words.length) {
        if (this.overMaxWidth(words.slice(0, w))) break;
        w++;
      }

      return w;
    }

    /**
     * Split the passed text into lines, according to width constraint (if any).
     * 
     * The method assumes that the input string is a single line, i.e. without lines break.
     *
     * This method retains spaces, if still present (case `font.multi: false`).
     * A space which falls on an internal line break, will be replaced by a newline.
     * There is no special handling of tabs; these go along with the flow.
     * 
     * @param {string} str
     * @param {string} [mod='normal']
     * @param {boolean} [appendLast=false]
     * @private
     */

  }, {
    key: 'splitStringIntoLines',
    value: function splitStringIntoLines(str) {
      var mod = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'normal';
      var appendLast = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

      // Still-present spaces are relevant, retain them
      str = str.replace(/^( +)/g, '$1\r');
      str = str.replace(/([^\r][^ ]*)( +)/g, '$1\r$2\r');
      var words = str.split('\r');

      while (words.length > 0) {
        var w = this.getLongestFit(words);

        if (w === 0) {
          // Special case: the first word is already larger than the max width.
          var word = words[0];

          // Break the word to the largest part that fits the line
          var x = this.getLongestFitWord(word);
          this.lines.newLine(word.slice(0, x), mod);

          // Adjust the word, so that the rest will be done next iteration
          words[0] = word.slice(x);
        } else {
          // skip any space that is replaced by a newline
          var newW = w;
          if (words[w - 1] === ' ') {
            w--;
          } else if (words[newW] === ' ') {
            newW++;
          }

          var text = words.slice(0, w).join("");

          if (w == words.length && appendLast) {
            this.lines.append(text, mod);
          } else {
            this.lines.newLine(text, mod);
          }

          // Adjust the word, so that the rest will be done next iteration
          words = words.slice(newW);
        }
      }
    }
  }]);
  return LabelSplitter;
}();

exports['default'] = LabelSplitter;

/***/ }),
/* 192 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _assign = __webpack_require__(90);

var _assign2 = _interopRequireDefault(_assign);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * Callback to determine text dimensions, using the parent label settings.
 * @callback MeasureText
 * @param {text} text
 * @param {text} mod
 * @return {Object} { width, values} width in pixels and font attributes
 */

/**
 * Helper class for Label which collects results of splitting labels into lines and blocks.
 *
 * @private
 */
var LabelAccumulator = function () {

  /**
   * @param {MeasureText} measureText
   */
  function LabelAccumulator(measureText) {
    (0, _classCallCheck3["default"])(this, LabelAccumulator);

    this.measureText = measureText;
    this.current = 0;
    this.width = 0;
    this.height = 0;
    this.lines = [];
  }

  /**
   * Append given text to the given line.
   *
   * @param {number}  l    index of line to add to
   * @param {string}  text string to append to line
   * @param {'bold'|'ital'|'boldital'|'mono'|'normal'} [mod='normal']
   * @private
   */


  (0, _createClass3["default"])(LabelAccumulator, [{
    key: "_add",
    value: function _add(l, text) {
      var mod = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'normal';


      if (this.lines[l] === undefined) {
        this.lines[l] = {
          width: 0,
          height: 0,
          blocks: []
        };
      }

      // We still need to set a block for undefined and empty texts, hence return at this point
      // This is necessary because we don't know at this point if we're at the
      // start of an empty line or not.
      // To compensate, empty blocks are removed in `finalize()`.
      //
      // Empty strings should still have a height
      var tmpText = text;
      if (text === undefined || text === "") tmpText = " ";

      // Determine width and get the font properties
      var result = this.measureText(tmpText, mod);
      var block = (0, _assign2["default"])({}, result.values);
      block.text = text;
      block.width = result.width;
      block.mod = mod;

      if (text === undefined || text === "") {
        block.width = 0;
      }

      this.lines[l].blocks.push(block);

      // Update the line width. We need this for determining if a string goes over max width
      this.lines[l].width += block.width;
    }

    /**
     * Returns the width in pixels of the current line.
     *
     * @returns {number}
     */

  }, {
    key: "curWidth",
    value: function curWidth() {
      var line = this.lines[this.current];
      if (line === undefined) return 0;

      return line.width;
    }

    /**
     * Add text in block to current line
     *
     * @param {string} text
     * @param {'bold'|'ital'|'boldital'|'mono'|'normal'} [mod='normal']
     */

  }, {
    key: "append",
    value: function append(text) {
      var mod = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'normal';

      this._add(this.current, text, mod);
    }

    /**
     * Add text in block to current line and start a new line
     *
     * @param {string} text
     * @param {'bold'|'ital'|'boldital'|'mono'|'normal'} [mod='normal']
     */

  }, {
    key: "newLine",
    value: function newLine(text) {
      var mod = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'normal';

      this._add(this.current, text, mod);
      this.current++;
    }

    /**
     * Determine and set the heights of all the lines currently contained in this instance
     *
     * Note that width has already been set.
     * 
     * @private
     */

  }, {
    key: "determineLineHeights",
    value: function determineLineHeights() {
      for (var k = 0; k < this.lines.length; k++) {
        var line = this.lines[k];

        // Looking for max height of blocks in line
        var height = 0;

        if (line.blocks !== undefined) {
          // Can happen if text contains e.g. '\n '
          for (var l = 0; l < line.blocks.length; l++) {
            var block = line.blocks[l];

            if (height < block.height) {
              height = block.height;
            }
          }
        }

        line.height = height;
      }
    }

    /**
     * Determine the full size of the label text, as determined by current lines and blocks
     * 
     * @private
     */

  }, {
    key: "determineLabelSize",
    value: function determineLabelSize() {
      var width = 0;
      var height = 0;
      for (var k = 0; k < this.lines.length; k++) {
        var line = this.lines[k];

        if (line.width > width) {
          width = line.width;
        }
        height += line.height;
      }

      this.width = width;
      this.height = height;
    }

    /**
     * Remove all empty blocks and empty lines we don't need
     * 
     * This must be done after the width/height determination,
     * so that these are set properly for processing here.
     *
     * @returns {Array<Line>} Lines with empty blocks (and some empty lines) removed
     * @private
     */

  }, {
    key: "removeEmptyBlocks",
    value: function removeEmptyBlocks() {
      var tmpLines = [];
      for (var k = 0; k < this.lines.length; k++) {
        var line = this.lines[k];

        // Note: an empty line in between text has width zero but is still relevant to layout.
        // So we can't use width for testing empty line here
        if (line.blocks.length === 0) continue;

        // Discard final empty line always
        if (k === this.lines.length - 1) {
          if (line.width === 0) continue;
        }

        var tmpLine = {};
        (0, _assign2["default"])(tmpLine, line);
        tmpLine.blocks = [];

        var firstEmptyBlock = void 0;
        var tmpBlocks = [];
        for (var l = 0; l < line.blocks.length; l++) {
          var block = line.blocks[l];
          if (block.width !== 0) {
            tmpBlocks.push(block);
          } else {
            if (firstEmptyBlock === undefined) {
              firstEmptyBlock = block;
            }
          }
        }

        // Ensure that there is *some* text present
        if (tmpBlocks.length === 0 && firstEmptyBlock !== undefined) {
          tmpBlocks.push(firstEmptyBlock);
        }

        tmpLine.blocks = tmpBlocks;

        tmpLines.push(tmpLine);
      }

      return tmpLines;
    }

    /**
     * Set the sizes for all lines and the whole thing.
     *
     * @returns {{width: (number|*), height: (number|*), lines: Array}}
     */

  }, {
    key: "finalize",
    value: function finalize() {
      //console.log(JSON.stringify(this.lines, null, 2));

      this.determineLineHeights();
      this.determineLabelSize();
      var tmpLines = this.removeEmptyBlocks();

      // Return a simple hash object for further processing.
      return {
        width: this.width,
        height: this.height,
        lines: tmpLines
      };
    }
  }]);
  return LabelAccumulator;
}();

exports["default"] = LabelAccumulator;

/***/ }),
/* 193 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _NodeBase2 = __webpack_require__(23);

var _NodeBase3 = _interopRequireDefault(_NodeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A Box Node/Cluster shape.
 *
 * @extends NodeBase
 */
var Box = function (_NodeBase) {
  (0, _inherits3['default'])(Box, _NodeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function Box(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, Box);

    var _this = (0, _possibleConstructorReturn3['default'])(this, (Box.__proto__ || (0, _getPrototypeOf2['default'])(Box)).call(this, options, body, labelModule));

    _this._setMargins(labelModule);
    return _this;
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {boolean} [selected]
   * @param {boolean} [hover]
   */


  (0, _createClass3['default'])(Box, [{
    key: 'resize',
    value: function resize(ctx) {
      var selected = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.selected;
      var hover = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.hover;

      if (this.needsRefresh(selected, hover)) {
        var dimensions = this.getDimensionsFromLabel(ctx, selected, hover);

        this.width = dimensions.width + this.margin.right + this.margin.left;
        this.height = dimensions.height + this.margin.top + this.margin.bottom;
        this.radius = this.width / 2;
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this.resize(ctx, selected, hover);
      this.left = x - this.width / 2;
      this.top = y - this.height / 2;

      this.initContextForDraw(ctx, values);
      ctx.roundRect(this.left, this.top, this.width, this.height, values.borderRadius);
      this.performFill(ctx, values);

      this.updateBoundingBox(x, y, ctx, selected, hover);
      this.labelModule.draw(ctx, this.left + this.textSize.width / 2 + this.margin.left, this.top + this.textSize.height / 2 + this.margin.top, selected, hover);
    }

    /**
     *
     * @param {number} x width
     * @param {number} y height
     * @param {CanvasRenderingContext2D} ctx
     * @param {boolean} selected
     * @param {boolean} hover
     */

  }, {
    key: 'updateBoundingBox',
    value: function updateBoundingBox(x, y, ctx, selected, hover) {
      this._updateBoundingBox(x, y, ctx, selected, hover);

      var borderRadius = this.options.shapeProperties.borderRadius; // only effective for box
      this._addBoundingBoxMargin(borderRadius);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      this.resize(ctx);
      var borderWidth = this.options.borderWidth;

      return Math.min(Math.abs(this.width / 2 / Math.cos(angle)), Math.abs(this.height / 2 / Math.sin(angle))) + borderWidth;
    }
  }]);
  return Box;
}(_NodeBase3['default']);

exports['default'] = Box;

/***/ }),
/* 194 */
/***/ (function(module, exports, __webpack_require__) {

__webpack_require__(195);
module.exports = __webpack_require__(7).Object.getPrototypeOf;


/***/ }),
/* 195 */
/***/ (function(module, exports, __webpack_require__) {

// 19.1.2.9 Object.getPrototypeOf(O)
var toObject = __webpack_require__(41);
var $getPrototypeOf = __webpack_require__(85);

__webpack_require__(87)('getPrototypeOf', function () {
  return function getPrototypeOf(it) {
    return $getPrototypeOf(toObject(it));
  };
});


/***/ }),
/* 196 */
/***/ (function(module, exports, __webpack_require__) {

module.exports = { "default": __webpack_require__(197), __esModule: true };

/***/ }),
/* 197 */
/***/ (function(module, exports, __webpack_require__) {

__webpack_require__(198);
module.exports = __webpack_require__(7).Object.setPrototypeOf;


/***/ }),
/* 198 */
/***/ (function(module, exports, __webpack_require__) {

// 19.1.3.19 Object.setPrototypeOf(O, proto)
var $export = __webpack_require__(17);
$export($export.S, 'Object', { setPrototypeOf: __webpack_require__(199).set });


/***/ }),
/* 199 */
/***/ (function(module, exports, __webpack_require__) {

// Works with __proto__ only. Old v8 can't work with null proto objects.
/* eslint-disable no-proto */
var isObject = __webpack_require__(32);
var anObject = __webpack_require__(27);
var check = function (O, proto) {
  anObject(O);
  if (!isObject(proto) && proto !== null) throw TypeError(proto + ": can't set as prototype!");
};
module.exports = {
  set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line
    function (test, buggy, set) {
      try {
        set = __webpack_require__(80)(Function.call, __webpack_require__(89).f(Object.prototype, '__proto__').set, 2);
        set(test, []);
        buggy = !(test instanceof Array);
      } catch (e) { buggy = true; }
      return function setPrototypeOf(O, proto) {
        check(O, proto);
        if (buggy) O.__proto__ = proto;
        else set(O, proto);
        return O;
      };
    }({}, false) : undefined),
  check: check
};


/***/ }),
/* 200 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _CircleImageBase2 = __webpack_require__(73);

var _CircleImageBase3 = _interopRequireDefault(_CircleImageBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A Circle Node/Cluster shape.
 *
 * @extends CircleImageBase
 */
var Circle = function (_CircleImageBase) {
  (0, _inherits3['default'])(Circle, _CircleImageBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function Circle(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, Circle);

    var _this = (0, _possibleConstructorReturn3['default'])(this, (Circle.__proto__ || (0, _getPrototypeOf2['default'])(Circle)).call(this, options, body, labelModule));

    _this._setMargins(labelModule);
    return _this;
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {boolean} [selected]
   * @param {boolean} [hover]
   */


  (0, _createClass3['default'])(Circle, [{
    key: 'resize',
    value: function resize(ctx) {
      var selected = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.selected;
      var hover = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.hover;

      if (this.needsRefresh(selected, hover)) {
        var dimensions = this.getDimensionsFromLabel(ctx, selected, hover);

        var diameter = Math.max(dimensions.width + this.margin.right + this.margin.left, dimensions.height + this.margin.top + this.margin.bottom);

        this.options.size = diameter / 2; // NOTE: this size field only set here, not in Ellipse, Database, Box
        this.width = diameter;
        this.height = diameter;
        this.radius = this.width / 2;
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this.resize(ctx, selected, hover);
      this.left = x - this.width / 2;
      this.top = y - this.height / 2;

      this._drawRawCircle(ctx, x, y, values);

      this.updateBoundingBox(x, y);
      this.labelModule.draw(ctx, this.left + this.textSize.width / 2 + this.margin.left, y, selected, hover);
    }

    /**
     *
     * @param {number} x width
     * @param {number} y height
     */

  }, {
    key: 'updateBoundingBox',
    value: function updateBoundingBox(x, y) {
      this.boundingBox.top = y - this.options.size;
      this.boundingBox.left = x - this.options.size;
      this.boundingBox.right = x + this.options.size;
      this.boundingBox.bottom = y + this.options.size;
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle - Unused
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      // eslint-disable-line no-unused-vars
      this.resize(ctx);
      return this.width * 0.5;
    }
  }]);
  return Circle;
}(_CircleImageBase3['default']);

exports['default'] = Circle;

/***/ }),
/* 201 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _CircleImageBase2 = __webpack_require__(73);

var _CircleImageBase3 = _interopRequireDefault(_CircleImageBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A CircularImage Node/Cluster shape.
 *
 * @extends CircleImageBase
 */
var CircularImage = function (_CircleImageBase) {
  (0, _inherits3['default'])(CircularImage, _CircleImageBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   * @param {Image} imageObj
   * @param {Image} imageObjAlt
   */
  function CircularImage(options, body, labelModule, imageObj, imageObjAlt) {
    (0, _classCallCheck3['default'])(this, CircularImage);

    var _this = (0, _possibleConstructorReturn3['default'])(this, (CircularImage.__proto__ || (0, _getPrototypeOf2['default'])(CircularImage)).call(this, options, body, labelModule));

    _this.setImages(imageObj, imageObjAlt);
    return _this;
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {boolean} [selected]
   * @param {boolean} [hover]
   */


  (0, _createClass3['default'])(CircularImage, [{
    key: 'resize',
    value: function resize(ctx) {
      var selected = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.selected;
      var hover = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.hover;

      var imageAbsent = this.imageObj.src === undefined || this.imageObj.width === undefined || this.imageObj.height === undefined;

      if (imageAbsent) {
        var diameter = this.options.size * 2;
        this.width = diameter;
        this.height = diameter;
        this.radius = 0.5 * this.width;
        return;
      }

      // At this point, an image is present, i.e. this.imageObj is valid.
      if (this.needsRefresh(selected, hover)) {
        this._resizeImage();
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this.switchImages(selected);
      this.resize();
      this.left = x - this.width / 2;
      this.top = y - this.height / 2;

      // draw the background circle. IMPORTANT: the stroke in this method is used by the clip method below.
      this._drawRawCircle(ctx, x, y, values);

      // now we draw in the circle, we save so we can revert the clip operation after drawing.
      ctx.save();
      // clip is used to use the stroke in drawRawCircle as an area that we can draw in.
      ctx.clip();
      // draw the image
      this._drawImageAtPosition(ctx, values);
      // restore so we can again draw on the full canvas
      ctx.restore();

      this._drawImageLabel(ctx, x, y, selected, hover);

      this.updateBoundingBox(x, y);
    }

    // TODO: compare with Circle.updateBoundingBox(), consolidate? More stuff is happening here
    /**
     *
     * @param {number} x width
     * @param {number} y height
     */

  }, {
    key: 'updateBoundingBox',
    value: function updateBoundingBox(x, y) {
      this.boundingBox.top = y - this.options.size;
      this.boundingBox.left = x - this.options.size;
      this.boundingBox.right = x + this.options.size;
      this.boundingBox.bottom = y + this.options.size;

      // TODO: compare with Image.updateBoundingBox(), consolidate?
      this.boundingBox.left = Math.min(this.boundingBox.left, this.labelModule.size.left);
      this.boundingBox.right = Math.max(this.boundingBox.right, this.labelModule.size.left + this.labelModule.size.width);
      this.boundingBox.bottom = Math.max(this.boundingBox.bottom, this.boundingBox.bottom + this.labelOffset);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle - Unused
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      // eslint-disable-line no-unused-vars
      this.resize(ctx);
      return this.width * 0.5;
    }
  }]);
  return CircularImage;
}(_CircleImageBase3['default']);

exports['default'] = CircularImage;

/***/ }),
/* 202 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _NodeBase2 = __webpack_require__(23);

var _NodeBase3 = _interopRequireDefault(_NodeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A Database Node/Cluster shape.
 *
 * @extends NodeBase
 */
var Database = function (_NodeBase) {
  (0, _inherits3['default'])(Database, _NodeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function Database(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, Database);

    var _this = (0, _possibleConstructorReturn3['default'])(this, (Database.__proto__ || (0, _getPrototypeOf2['default'])(Database)).call(this, options, body, labelModule));

    _this._setMargins(labelModule);
    return _this;
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {boolean} selected
   * @param {boolean} hover
   */


  (0, _createClass3['default'])(Database, [{
    key: 'resize',
    value: function resize(ctx, selected, hover) {
      if (this.needsRefresh(selected, hover)) {
        var dimensions = this.getDimensionsFromLabel(ctx, selected, hover);
        var size = dimensions.width + this.margin.right + this.margin.left;

        this.width = size;
        this.height = size;
        this.radius = this.width / 2;
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this.resize(ctx, selected, hover);
      this.left = x - this.width / 2;
      this.top = y - this.height / 2;

      this.initContextForDraw(ctx, values);
      ctx.database(x - this.width / 2, y - this.height / 2, this.width, this.height);
      this.performFill(ctx, values);

      this.updateBoundingBox(x, y, ctx, selected, hover);
      this.labelModule.draw(ctx, this.left + this.textSize.width / 2 + this.margin.left, this.top + this.textSize.height / 2 + this.margin.top, selected, hover);
    }
    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      return this._distanceToBorder(ctx, angle);
    }
  }]);
  return Database;
}(_NodeBase3['default']);

exports['default'] = Database;

/***/ }),
/* 203 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _ShapeBase2 = __webpack_require__(24);

var _ShapeBase3 = _interopRequireDefault(_ShapeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A Diamond Node/Cluster shape.
 *
 * @extends ShapeBase
 */
var Diamond = function (_ShapeBase) {
  (0, _inherits3['default'])(Diamond, _ShapeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function Diamond(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, Diamond);
    return (0, _possibleConstructorReturn3['default'])(this, (Diamond.__proto__ || (0, _getPrototypeOf2['default'])(Diamond)).call(this, options, body, labelModule));
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x width
   * @param {number} y height
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
   */


  (0, _createClass3['default'])(Diamond, [{
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this._drawShape(ctx, 'diamond', 4, x, y, selected, hover, values);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      return this._distanceToBorder(ctx, angle);
    }
  }]);
  return Diamond;
}(_ShapeBase3['default']);

exports['default'] = Diamond;

/***/ }),
/* 204 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _ShapeBase2 = __webpack_require__(24);

var _ShapeBase3 = _interopRequireDefault(_ShapeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A Dot Node/Cluster shape.
 *
 * @extends ShapeBase
 */
var Dot = function (_ShapeBase) {
  (0, _inherits3['default'])(Dot, _ShapeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function Dot(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, Dot);
    return (0, _possibleConstructorReturn3['default'])(this, (Dot.__proto__ || (0, _getPrototypeOf2['default'])(Dot)).call(this, options, body, labelModule));
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x width
   * @param {number} y height
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
   */


  (0, _createClass3['default'])(Dot, [{
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this._drawShape(ctx, 'circle', 2, x, y, selected, hover, values);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      // eslint-disable-line no-unused-vars
      this.resize(ctx);
      return this.options.size;
    }
  }]);
  return Dot;
}(_ShapeBase3['default']);

exports['default'] = Dot;

/***/ }),
/* 205 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _NodeBase2 = __webpack_require__(23);

var _NodeBase3 = _interopRequireDefault(_NodeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Am Ellipse Node/Cluster shape.
 *
 * @extends NodeBase
 */
var Ellipse = function (_NodeBase) {
  (0, _inherits3['default'])(Ellipse, _NodeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function Ellipse(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, Ellipse);
    return (0, _possibleConstructorReturn3['default'])(this, (Ellipse.__proto__ || (0, _getPrototypeOf2['default'])(Ellipse)).call(this, options, body, labelModule));
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {boolean} [selected]
   * @param {boolean} [hover]
   */


  (0, _createClass3['default'])(Ellipse, [{
    key: 'resize',
    value: function resize(ctx) {
      var selected = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.selected;
      var hover = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.hover;

      if (this.needsRefresh(selected, hover)) {
        var dimensions = this.getDimensionsFromLabel(ctx, selected, hover);

        this.height = dimensions.height * 2;
        this.width = dimensions.width + dimensions.height;
        this.radius = 0.5 * this.width;
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this.resize(ctx, selected, hover);
      this.left = x - this.width * 0.5;
      this.top = y - this.height * 0.5;

      this.initContextForDraw(ctx, values);
      ctx.ellipse_vis(this.left, this.top, this.width, this.height);
      this.performFill(ctx, values);

      this.updateBoundingBox(x, y, ctx, selected, hover);
      this.labelModule.draw(ctx, x, y, selected, hover);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      this.resize(ctx);
      var a = this.width * 0.5;
      var b = this.height * 0.5;
      var w = Math.sin(angle) * a;
      var h = Math.cos(angle) * b;
      return a * b / Math.sqrt(w * w + h * h);
    }
  }]);
  return Ellipse;
}(_NodeBase3['default']);

exports['default'] = Ellipse;

/***/ }),
/* 206 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _NodeBase2 = __webpack_require__(23);

var _NodeBase3 = _interopRequireDefault(_NodeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * An icon replacement for the default Node shape.
 *
 * @extends NodeBase
 */
var Icon = function (_NodeBase) {
  (0, _inherits3['default'])(Icon, _NodeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function Icon(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, Icon);

    var _this = (0, _possibleConstructorReturn3['default'])(this, (Icon.__proto__ || (0, _getPrototypeOf2['default'])(Icon)).call(this, options, body, labelModule));

    _this._setMargins(labelModule);
    return _this;
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx - Unused.
   * @param {boolean} [selected]
   * @param {boolean} [hover]
   */


  (0, _createClass3['default'])(Icon, [{
    key: 'resize',
    value: function resize(ctx, selected, hover) {
      if (this.needsRefresh(selected, hover)) {
        this.iconSize = {
          width: Number(this.options.icon.size),
          height: Number(this.options.icon.size)
        };
        this.width = this.iconSize.width + this.margin.right + this.margin.left;
        this.height = this.iconSize.height + this.margin.top + this.margin.bottom;
        this.radius = 0.5 * this.width;
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this.resize(ctx, selected, hover);
      this.options.icon.size = this.options.icon.size || 50;

      this.left = x - this.width / 2;
      this.top = y - this.height / 2;
      this._icon(ctx, x, y, selected, hover, values);

      if (this.options.label !== undefined) {
        var iconTextSpacing = 5;
        this.labelModule.draw(ctx, this.left + this.iconSize.width / 2 + this.margin.left, y + this.height / 2 + iconTextSpacing, selected);
      }

      this.updateBoundingBox(x, y);
    }

    /**
     *
     * @param {number} x
     * @param {number} y
     */

  }, {
    key: 'updateBoundingBox',
    value: function updateBoundingBox(x, y) {
      this.boundingBox.top = y - this.options.icon.size * 0.5;
      this.boundingBox.left = x - this.options.icon.size * 0.5;
      this.boundingBox.right = x + this.options.icon.size * 0.5;
      this.boundingBox.bottom = y + this.options.icon.size * 0.5;

      if (this.options.label !== undefined && this.labelModule.size.width > 0) {
        var iconTextSpacing = 5;
        this.boundingBox.left = Math.min(this.boundingBox.left, this.labelModule.size.left);
        this.boundingBox.right = Math.max(this.boundingBox.right, this.labelModule.size.left + this.labelModule.size.width);
        this.boundingBox.bottom = Math.max(this.boundingBox.bottom, this.boundingBox.bottom + this.labelModule.size.height + iconTextSpacing);
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {boolean} selected
     * @param {boolean} hover - Unused
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: '_icon',
    value: function _icon(ctx, x, y, selected, hover, values) {
      var iconSize = Number(this.options.icon.size);

      if (this.options.icon.code !== undefined) {
        ctx.font = (selected ? "bold " : "") + iconSize + "px " + this.options.icon.face;

        // draw icon
        ctx.fillStyle = this.options.icon.color || "black";
        ctx.textAlign = "center";
        ctx.textBaseline = "middle";

        // draw shadow if enabled
        this.enableShadow(ctx, values);
        ctx.fillText(this.options.icon.code, x, y);

        // disable shadows for other elements.
        this.disableShadow(ctx, values);
      } else {
        console.error('When using the icon shape, you need to define the code in the icon options object. This can be done per node or globally.');
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      return this._distanceToBorder(ctx, angle);
    }
  }]);
  return Icon;
}(_NodeBase3['default']);

exports['default'] = Icon;

/***/ }),
/* 207 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _CircleImageBase2 = __webpack_require__(73);

var _CircleImageBase3 = _interopRequireDefault(_CircleImageBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * An image-based replacement for the default Node shape.
 *
 * @extends CircleImageBase
 */
var Image = function (_CircleImageBase) {
  (0, _inherits3['default'])(Image, _CircleImageBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   * @param {Image} imageObj
   * @param {Image} imageObjAlt
   */
  function Image(options, body, labelModule, imageObj, imageObjAlt) {
    (0, _classCallCheck3['default'])(this, Image);

    var _this = (0, _possibleConstructorReturn3['default'])(this, (Image.__proto__ || (0, _getPrototypeOf2['default'])(Image)).call(this, options, body, labelModule));

    _this.setImages(imageObj, imageObjAlt);
    return _this;
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx - Unused.
   * @param {boolean} [selected]
   * @param {boolean} [hover]
   */


  (0, _createClass3['default'])(Image, [{
    key: 'resize',
    value: function resize(ctx) {
      var selected = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.selected;
      var hover = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : this.hover;

      var imageAbsent = this.imageObj.src === undefined || this.imageObj.width === undefined || this.imageObj.height === undefined;

      if (imageAbsent) {
        var side = this.options.size * 2;
        this.width = side;
        this.height = side;
        return;
      }

      if (this.needsRefresh(selected, hover)) {
        this._resizeImage();
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this.switchImages(selected);
      this.resize();
      this.left = x - this.width / 2;
      this.top = y - this.height / 2;

      if (this.options.shapeProperties.useBorderWithImage === true) {
        var neutralborderWidth = this.options.borderWidth;
        var selectionLineWidth = this.options.borderWidthSelected || 2 * this.options.borderWidth;
        var borderWidth = (selected ? selectionLineWidth : neutralborderWidth) / this.body.view.scale;
        ctx.lineWidth = Math.min(this.width, borderWidth);

        ctx.beginPath();

        // setup the line properties.
        ctx.strokeStyle = selected ? this.options.color.highlight.border : hover ? this.options.color.hover.border : this.options.color.border;

        // set a fillstyle
        ctx.fillStyle = selected ? this.options.color.highlight.background : hover ? this.options.color.hover.background : this.options.color.background;

        // draw a rectangle to form the border around. This rectangle is filled so the opacity of a picture (in future vis releases?) can be used to tint the image
        ctx.rect(this.left - 0.5 * ctx.lineWidth, this.top - 0.5 * ctx.lineWidth, this.width + ctx.lineWidth, this.height + ctx.lineWidth);
        ctx.fill();

        this.performStroke(ctx, values);

        ctx.closePath();
      }

      this._drawImageAtPosition(ctx, values);

      this._drawImageLabel(ctx, x, y, selected, hover);

      this.updateBoundingBox(x, y);
    }

    /**
     *
     * @param {number} x
     * @param {number} y
     */

  }, {
    key: 'updateBoundingBox',
    value: function updateBoundingBox(x, y) {
      this.resize();
      this._updateBoundingBox(x, y);

      if (this.options.label !== undefined && this.labelModule.size.width > 0) {
        this.boundingBox.left = Math.min(this.boundingBox.left, this.labelModule.size.left);
        this.boundingBox.right = Math.max(this.boundingBox.right, this.labelModule.size.left + this.labelModule.size.width);
        this.boundingBox.bottom = Math.max(this.boundingBox.bottom, this.boundingBox.bottom + this.labelOffset);
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      return this._distanceToBorder(ctx, angle);
    }
  }]);
  return Image;
}(_CircleImageBase3['default']);

exports['default'] = Image;

/***/ }),
/* 208 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _ShapeBase2 = __webpack_require__(24);

var _ShapeBase3 = _interopRequireDefault(_ShapeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A Square Node/Cluster shape.
 *
 * @extends ShapeBase
 */
var Square = function (_ShapeBase) {
  (0, _inherits3['default'])(Square, _ShapeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function Square(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, Square);
    return (0, _possibleConstructorReturn3['default'])(this, (Square.__proto__ || (0, _getPrototypeOf2['default'])(Square)).call(this, options, body, labelModule));
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x width
   * @param {number} y height
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
   */


  (0, _createClass3['default'])(Square, [{
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this._drawShape(ctx, 'square', 2, x, y, selected, hover, values);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      return this._distanceToBorder(ctx, angle);
    }
  }]);
  return Square;
}(_ShapeBase3['default']);

exports['default'] = Square;

/***/ }),
/* 209 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _ShapeBase2 = __webpack_require__(24);

var _ShapeBase3 = _interopRequireDefault(_ShapeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A Hexagon Node/Cluster shape.
 *
 * @extends ShapeBase
 */
var Hexagon = function (_ShapeBase) {
  (0, _inherits3['default'])(Hexagon, _ShapeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function Hexagon(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, Hexagon);
    return (0, _possibleConstructorReturn3['default'])(this, (Hexagon.__proto__ || (0, _getPrototypeOf2['default'])(Hexagon)).call(this, options, body, labelModule));
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x width
   * @param {number} y height
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
   */


  (0, _createClass3['default'])(Hexagon, [{
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this._drawShape(ctx, 'hexagon', 4, x, y, selected, hover, values);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      return this._distanceToBorder(ctx, angle);
    }
  }]);
  return Hexagon;
}(_ShapeBase3['default']);

exports['default'] = Hexagon;

/***/ }),
/* 210 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _ShapeBase2 = __webpack_require__(24);

var _ShapeBase3 = _interopRequireDefault(_ShapeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A Star Node/Cluster shape.
 *
 * @extends ShapeBase
 */
var Star = function (_ShapeBase) {
  (0, _inherits3['default'])(Star, _ShapeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function Star(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, Star);
    return (0, _possibleConstructorReturn3['default'])(this, (Star.__proto__ || (0, _getPrototypeOf2['default'])(Star)).call(this, options, body, labelModule));
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x width
   * @param {number} y height
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
   */


  (0, _createClass3['default'])(Star, [{
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this._drawShape(ctx, 'star', 4, x, y, selected, hover, values);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      return this._distanceToBorder(ctx, angle);
    }
  }]);
  return Star;
}(_ShapeBase3['default']);

exports['default'] = Star;

/***/ }),
/* 211 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _NodeBase2 = __webpack_require__(23);

var _NodeBase3 = _interopRequireDefault(_NodeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A text-based replacement for the default Node shape.
 *
 * @extends NodeBase
 */
var Text = function (_NodeBase) {
  (0, _inherits3['default'])(Text, _NodeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function Text(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, Text);

    var _this = (0, _possibleConstructorReturn3['default'])(this, (Text.__proto__ || (0, _getPrototypeOf2['default'])(Text)).call(this, options, body, labelModule));

    _this._setMargins(labelModule);
    return _this;
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {boolean} selected
   * @param {boolean} hover
   */


  (0, _createClass3['default'])(Text, [{
    key: 'resize',
    value: function resize(ctx, selected, hover) {
      if (this.needsRefresh(selected, hover)) {
        this.textSize = this.labelModule.getTextSize(ctx, selected, hover);
        this.width = this.textSize.width + this.margin.right + this.margin.left;
        this.height = this.textSize.height + this.margin.top + this.margin.bottom;
        this.radius = 0.5 * this.width;
      }
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} x width
     * @param {number} y height
     * @param {boolean} selected
     * @param {boolean} hover
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     */

  }, {
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this.resize(ctx, selected, hover);
      this.left = x - this.width / 2;
      this.top = y - this.height / 2;

      // draw shadow if enabled
      this.enableShadow(ctx, values);
      this.labelModule.draw(ctx, this.left + this.textSize.width / 2 + this.margin.left, this.top + this.textSize.height / 2 + this.margin.top, selected, hover);

      // disable shadows for other elements.
      this.disableShadow(ctx, values);

      this.updateBoundingBox(x, y, ctx, selected, hover);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      return this._distanceToBorder(ctx, angle);
    }
  }]);
  return Text;
}(_NodeBase3['default']);

exports['default'] = Text;

/***/ }),
/* 212 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _ShapeBase2 = __webpack_require__(24);

var _ShapeBase3 = _interopRequireDefault(_ShapeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A Triangle Node/Cluster shape.
 *
 * @extends ShapeBase
 */
var Triangle = function (_ShapeBase) {
  (0, _inherits3['default'])(Triangle, _ShapeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function Triangle(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, Triangle);
    return (0, _possibleConstructorReturn3['default'])(this, (Triangle.__proto__ || (0, _getPrototypeOf2['default'])(Triangle)).call(this, options, body, labelModule));
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x
   * @param {number} y
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
   */


  (0, _createClass3['default'])(Triangle, [{
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this._drawShape(ctx, 'triangle', 3, x, y, selected, hover, values);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      return this._distanceToBorder(ctx, angle);
    }
  }]);
  return Triangle;
}(_ShapeBase3['default']);

exports['default'] = Triangle;

/***/ }),
/* 213 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _ShapeBase2 = __webpack_require__(24);

var _ShapeBase3 = _interopRequireDefault(_ShapeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A downward facing Triangle Node/Cluster shape.
 *
 * @extends ShapeBase
 */
var TriangleDown = function (_ShapeBase) {
  (0, _inherits3['default'])(TriangleDown, _ShapeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function TriangleDown(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, TriangleDown);
    return (0, _possibleConstructorReturn3['default'])(this, (TriangleDown.__proto__ || (0, _getPrototypeOf2['default'])(TriangleDown)).call(this, options, body, labelModule));
  }

  /**
   *
   * @param {CanvasRenderingContext2D} ctx
   * @param {number} x
   * @param {number} y
   * @param {boolean} selected
   * @param {boolean} hover
   * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
   */


  (0, _createClass3['default'])(TriangleDown, [{
    key: 'draw',
    value: function draw(ctx, x, y, selected, hover, values) {
      this._drawShape(ctx, 'triangleDown', 3, x, y, selected, hover, values);
    }

    /**
     *
     * @param {CanvasRenderingContext2D} ctx
     * @param {number} angle
     * @returns {number}
     */

  }, {
    key: 'distanceToBorder',
    value: function distanceToBorder(ctx, angle) {
      return this._distanceToBorder(ctx, angle);
    }
  }]);
  return TriangleDown;
}(_ShapeBase3['default']);

exports['default'] = TriangleDown;

/***/ }),
/* 214 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var DataSet = __webpack_require__(11);
var DataView = __webpack_require__(12);
var Edge = __webpack_require__(74)['default'];

/**
 * Handler for Edges
 */

var EdgesHandler = function () {
  /**
   * @param {Object} body
   * @param {Array.<Image>} images
   * @param {Array.<Group>} groups
   */
  function EdgesHandler(body, images, groups) {
    var _this = this;

    (0, _classCallCheck3['default'])(this, EdgesHandler);

    this.body = body;
    this.images = images;
    this.groups = groups;

    // create the edge API in the body container
    this.body.functions.createEdge = this.create.bind(this);

    this.edgesListeners = {
      add: function add(event, params) {
        _this.add(params.items);
      },
      update: function update(event, params) {
        _this.update(params.items);
      },
      remove: function remove(event, params) {
        _this.remove(params.items);
      }
    };

    this.options = {};
    this.defaultOptions = {
      arrows: {
        to: { enabled: false, scaleFactor: 1, type: 'arrow' }, // boolean / {arrowScaleFactor:1} / {enabled: false, arrowScaleFactor:1}
        middle: { enabled: false, scaleFactor: 1, type: 'arrow' },
        from: { enabled: false, scaleFactor: 1, type: 'arrow' }
      },
      arrowStrikethrough: true,
      color: {
        color: '#848484',
        highlight: '#848484',
        hover: '#848484',
        inherit: 'from',
        opacity: 1.0
      },
      dashes: false,
      font: {
        color: '#343434',
        size: 14, // px
        face: 'arial',
        background: 'none',
        strokeWidth: 2, // px
        strokeColor: '#ffffff',
        align: 'horizontal',
        multi: false,
        vadjust: 0,
        bold: {
          mod: 'bold'
        },
        boldital: {
          mod: 'bold italic'
        },
        ital: {
          mod: 'italic'
        },
        mono: {
          mod: '',
          size: 15, // px
          face: 'courier new',
          vadjust: 2
        }
      },
      hidden: false,
      hoverWidth: 1.5,
      label: undefined,
      labelHighlightBold: true,
      length: undefined,
      physics: true,
      scaling: {
        min: 1,
        max: 15,
        label: {
          enabled: true,
          min: 14,
          max: 30,
          maxVisible: 30,
          drawThreshold: 5
        },
        customScalingFunction: function customScalingFunction(min, max, total, value) {
          if (max === min) {
            return 0.5;
          } else {
            var scale = 1 / (max - min);
            return Math.max(0, (value - min) * scale);
          }
        }
      },
      selectionWidth: 1.5,
      selfReferenceSize: 20,
      shadow: {
        enabled: false,
        color: 'rgba(0,0,0,0.5)',
        size: 10,
        x: 5,
        y: 5
      },
      smooth: {
        enabled: true,
        type: "dynamic",
        forceDirection: 'none',
        roundness: 0.5
      },
      title: undefined,
      width: 1,
      value: undefined
    };

    util.deepExtend(this.options, this.defaultOptions);

    this.bindEventListeners();
  }

  /**
   * Binds event listeners
   */


  (0, _createClass3['default'])(EdgesHandler, [{
    key: 'bindEventListeners',
    value: function bindEventListeners() {
      var _this2 = this;

      // this allows external modules to force all dynamic curves to turn static.
      this.body.emitter.on("_forceDisableDynamicCurves", function (type) {
        var emit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

        if (type === 'dynamic') {
          type = 'continuous';
        }
        var dataChanged = false;
        for (var edgeId in _this2.body.edges) {
          if (_this2.body.edges.hasOwnProperty(edgeId)) {
            var edge = _this2.body.edges[edgeId];
            var edgeData = _this2.body.data.edges._data[edgeId];

            // only forcibly remove the smooth curve if the data has been set of the edge has the smooth curves defined.
            // this is because a change in the global would not affect these curves.
            if (edgeData !== undefined) {
              var smoothOptions = edgeData.smooth;
              if (smoothOptions !== undefined) {
                if (smoothOptions.enabled === true && smoothOptions.type === 'dynamic') {
                  if (type === undefined) {
                    edge.setOptions({ smooth: false });
                  } else {
                    edge.setOptions({ smooth: { type: type } });
                  }
                  dataChanged = true;
                }
              }
            }
          }
        }
        if (emit === true && dataChanged === true) {
          _this2.body.emitter.emit("_dataChanged");
        }
      });

      // this is called when options of EXISTING nodes or edges have changed.
      //
      // NOTE: Not true, called when options have NOT changed, for both existing as well as new nodes.
      //       See update() for logic.
      // TODO: Verify and examine the consequences of this. It might still trigger when
      //       non-option fields have changed, but then reconnecting edges is still useless.
      //       Alternatively, it might also be called when edges are removed.
      //
      this.body.emitter.on("_dataUpdated", function () {
        _this2.reconnectEdges();
      });

      // refresh the edges. Used when reverting from hierarchical layout
      this.body.emitter.on("refreshEdges", this.refresh.bind(this));
      this.body.emitter.on("refresh", this.refresh.bind(this));
      this.body.emitter.on("destroy", function () {
        util.forEach(_this2.edgesListeners, function (callback, event) {
          if (_this2.body.data.edges) _this2.body.data.edges.off(event, callback);
        });
        delete _this2.body.functions.createEdge;
        delete _this2.edgesListeners.add;
        delete _this2.edgesListeners.update;
        delete _this2.edgesListeners.remove;
        delete _this2.edgesListeners;
      });
    }

    /**
     *
     * @param {Object} options
     */

  }, {
    key: 'setOptions',
    value: function setOptions(options) {
      if (options !== undefined) {
        // use the parser from the Edge class to fill in all shorthand notations
        Edge.parseOptions(this.options, options, true, this.defaultOptions, true);

        // update smooth settings in all edges
        var dataChanged = false;
        if (options.smooth !== undefined) {
          for (var edgeId in this.body.edges) {
            if (this.body.edges.hasOwnProperty(edgeId)) {
              dataChanged = this.body.edges[edgeId].updateEdgeType() || dataChanged;
            }
          }
        }

        // update fonts in all edges
        if (options.font !== undefined) {
          for (var _edgeId in this.body.edges) {
            if (this.body.edges.hasOwnProperty(_edgeId)) {
              this.body.edges[_edgeId].updateLabelModule();
            }
          }
        }

        // update the state of the variables if needed
        if (options.hidden !== undefined || options.physics !== undefined || dataChanged === true) {
          this.body.emitter.emit('_dataChanged');
        }
      }
    }

    /**
     * Load edges by reading the data table
     * @param {Array | DataSet | DataView} edges    The data containing the edges.
     * @param {boolean} [doNotEmit=false]
     * @private
     */

  }, {
    key: 'setData',
    value: function setData(edges) {
      var _this3 = this;

      var doNotEmit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

      var oldEdgesData = this.body.data.edges;

      if (edges instanceof DataSet || edges instanceof DataView) {
        this.body.data.edges = edges;
      } else if (Array.isArray(edges)) {
        this.body.data.edges = new DataSet();
        this.body.data.edges.add(edges);
      } else if (!edges) {
        this.body.data.edges = new DataSet();
      } else {
        throw new TypeError('Array or DataSet expected');
      }

      // TODO: is this null or undefined or false?
      if (oldEdgesData) {
        // unsubscribe from old dataset
        util.forEach(this.edgesListeners, function (callback, event) {
          oldEdgesData.off(event, callback);
        });
      }

      // remove drawn edges
      this.body.edges = {};

      // TODO: is this null or undefined or false?
      if (this.body.data.edges) {
        // subscribe to new dataset
        util.forEach(this.edgesListeners, function (callback, event) {
          _this3.body.data.edges.on(event, callback);
        });

        // draw all new nodes
        var ids = this.body.data.edges.getIds();
        this.add(ids, true);
      }

      this.body.emitter.emit('_adjustEdgesForHierarchicalLayout');
      if (doNotEmit === false) {
        this.body.emitter.emit("_dataChanged");
      }
    }

    /**
     * Add edges
     * @param {number[] | string[]} ids
     * @param {boolean} [doNotEmit=false]
     * @private
     */

  }, {
    key: 'add',
    value: function add(ids) {
      var doNotEmit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

      var edges = this.body.edges;
      var edgesData = this.body.data.edges;

      for (var i = 0; i < ids.length; i++) {
        var id = ids[i];

        var oldEdge = edges[id];
        if (oldEdge) {
          oldEdge.disconnect();
        }

        var data = edgesData.get(id, { "showInternalIds": true });
        edges[id] = this.create(data);
      }

      this.body.emitter.emit('_adjustEdgesForHierarchicalLayout');

      if (doNotEmit === false) {
        this.body.emitter.emit("_dataChanged");
      }
    }

    /**
     * Update existing edges, or create them when not yet existing
     * @param {number[] | string[]} ids
     * @private
     */

  }, {
    key: 'update',
    value: function update(ids) {
      var edges = this.body.edges;
      var edgesData = this.body.data.edges;
      var dataChanged = false;
      for (var i = 0; i < ids.length; i++) {
        var id = ids[i];
        var data = edgesData.get(id);
        var edge = edges[id];
        if (edge !== undefined) {
          // update edge
          edge.disconnect();
          dataChanged = edge.setOptions(data) || dataChanged; // if a support node is added, data can be changed.
          edge.connect();
        } else {
          // create edge
          this.body.edges[id] = this.create(data);
          dataChanged = true;
        }
      }

      if (dataChanged === true) {
        this.body.emitter.emit('_adjustEdgesForHierarchicalLayout');
        this.body.emitter.emit("_dataChanged");
      } else {
        this.body.emitter.emit("_dataUpdated");
      }
    }

    /**
     * Remove existing edges. Non existing ids will be ignored
     * @param {number[] | string[]} ids
     * @param {boolean} [emit=true]
     * @private
     */

  }, {
    key: 'remove',
    value: function remove(ids) {
      var emit = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

      if (ids.length === 0) return; // early out

      var edges = this.body.edges;
      util.forEach(ids, function (id) {
        var edge = edges[id];
        if (edge !== undefined) {
          edge.remove();
        }
      });

      if (emit) {
        this.body.emitter.emit("_dataChanged");
      }
    }

    /**
     * Refreshes Edge Handler
     */

  }, {
    key: 'refresh',
    value: function refresh() {
      var _this4 = this;

      util.forEach(this.body.edges, function (edge, edgeId) {
        var data = _this4.body.data.edges._data[edgeId];
        if (data !== undefined) {
          edge.setOptions(data);
        }
      });
    }

    /**
     *
     * @param {Object} properties
     * @returns {Edge}
     */

  }, {
    key: 'create',
    value: function create(properties) {
      return new Edge(properties, this.body, this.options, this.defaultOptions);
    }

    /**
     * Reconnect all edges
     * @private
     */

  }, {
    key: 'reconnectEdges',
    value: function reconnectEdges() {
      var id;
      var nodes = this.body.nodes;
      var edges = this.body.edges;

      for (id in nodes) {
        if (nodes.hasOwnProperty(id)) {
          nodes[id].edges = [];
        }
      }

      for (id in edges) {
        if (edges.hasOwnProperty(id)) {
          var edge = edges[id];
          edge.from = null;
          edge.to = null;
          edge.connect();
        }
      }
    }

    /**
     *
     * @param {Edge.id} edgeId
     * @returns {Array}
     */

  }, {
    key: 'getConnectedNodes',
    value: function getConnectedNodes(edgeId) {
      var nodeList = [];
      if (this.body.edges[edgeId] !== undefined) {
        var edge = this.body.edges[edgeId];
        if (edge.fromId !== undefined) {
          nodeList.push(edge.fromId);
        }
        if (edge.toId !== undefined) {
          nodeList.push(edge.toId);
        }
      }
      return nodeList;
    }

    /**
     * There is no direct relation between the nodes and the edges DataSet,
     * so the right place to do call this is in the handler for event `_dataUpdated`.
     */

  }, {
    key: '_updateState',
    value: function _updateState() {
      this._addMissingEdges();
      this._removeInvalidEdges();
    }

    /**
     * Scan for missing nodes and remove corresponding edges, if any.
     * @private
     */

  }, {
    key: '_removeInvalidEdges',
    value: function _removeInvalidEdges() {
      var _this5 = this;

      var edgesToDelete = [];

      util.forEach(this.body.edges, function (edge, id) {
        var toNode = _this5.body.nodes[edge.toId];
        var fromNode = _this5.body.nodes[edge.fromId];

        // Skip clustering edges here, let the Clustering module handle those
        if (toNode !== undefined && toNode.isCluster === true || fromNode !== undefined && fromNode.isCluster === true) {
          return;
        }

        if (toNode === undefined || fromNode === undefined) {
          edgesToDelete.push(id);
        }
      });

      this.remove(edgesToDelete, false);
    }

    /**
     * add all edges from dataset that are not in the cached state
     * @private
     */

  }, {
    key: '_addMissingEdges',
    value: function _addMissingEdges() {
      var edges = this.body.edges;
      var edgesData = this.body.data.edges;
      var addIds = [];

      edgesData.forEach(function (edgeData, edgeId) {
        var edge = edges[edgeId];
        if (edge === undefined) {
          addIds.push(edgeId);
        }
      });

      this.add(addIds, true);
    }
  }]);
  return EdgesHandler;
}();

exports['default'] = EdgesHandler;

/***/ }),
/* 215 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _slicedToArray2 = __webpack_require__(30);

var _slicedToArray3 = _interopRequireDefault(_slicedToArray2);

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _CubicBezierEdgeBase2 = __webpack_require__(216);

var _CubicBezierEdgeBase3 = _interopRequireDefault(_CubicBezierEdgeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A Cubic Bezier Edge. Bezier curves are used to model smooth gradual
 * curves in paths between nodes.
 *
 * @extends CubicBezierEdgeBase
 */
var CubicBezierEdge = function (_CubicBezierEdgeBase) {
  (0, _inherits3['default'])(CubicBezierEdge, _CubicBezierEdgeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function CubicBezierEdge(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, CubicBezierEdge);
    return (0, _possibleConstructorReturn3['default'])(this, (CubicBezierEdge.__proto__ || (0, _getPrototypeOf2['default'])(CubicBezierEdge)).call(this, options, body, labelModule));
  }

  /**
   * Draw a line between two nodes
   * @param {CanvasRenderingContext2D} ctx
   * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
   * @param {Array.<Node>} viaNodes
   * @private
   */


  (0, _createClass3['default'])(CubicBezierEdge, [{
    key: '_line',
    value: function _line(ctx, values, viaNodes) {
      // get the coordinates of the support points.
      var via1 = viaNodes[0];
      var via2 = viaNodes[1];
      this._bezierCurve(ctx, values, via1, via2);
    }

    /**
     *
     * @returns {Array.<{x: number, y: number}>}
     * @private
     */

  }, {
    key: '_getViaCoordinates',
    value: function _getViaCoordinates() {
      var dx = this.from.x - this.to.x;
      var dy = this.from.y - this.to.y;

      var x1 = void 0,
          y1 = void 0,
          x2 = void 0,
          y2 = void 0;
      var roundness = this.options.smooth.roundness;

      // horizontal if x > y or if direction is forced or if direction is horizontal
      if ((Math.abs(dx) > Math.abs(dy) || this.options.smooth.forceDirection === true || this.options.smooth.forceDirection === 'horizontal') && this.options.smooth.forceDirection !== 'vertical') {
        y1 = this.from.y;
        y2 = this.to.y;
        x1 = this.from.x - roundness * dx;
        x2 = this.to.x + roundness * dx;
      } else {
        y1 = this.from.y - roundness * dy;
        y2 = this.to.y + roundness * dy;
        x1 = this.from.x;
        x2 = this.to.x;
      }

      return [{ x: x1, y: y1 }, { x: x2, y: y2 }];
    }

    /**
     *
     * @returns {Array.<{x: number, y: number}>}
     */

  }, {
    key: 'getViaNode',
    value: function getViaNode() {
      return this._getViaCoordinates();
    }

    /**
     *
     * @param {Node} nearNode
     * @param {CanvasRenderingContext2D} ctx
     * @returns {{x: number, y: number, t: number}}
     * @private
     */

  }, {
    key: '_findBorderPosition',
    value: function _findBorderPosition(nearNode, ctx) {
      return this._findBorderPositionBezier(nearNode, ctx);
    }

    /**
     *
     * @param {number} x1
     * @param {number} y1
     * @param {number} x2
     * @param {number} y2
     * @param {number} x3
     * @param {number} y3
     * @param {Node} via1
     * @param {Node} via2
     * @returns {number}
     * @private
     */

  }, {
    key: '_getDistanceToEdge',
    value: function _getDistanceToEdge(x1, y1, x2, y2, x3, y3) {
      var _ref = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : this._getViaCoordinates(),
          _ref2 = (0, _slicedToArray3['default'])(_ref, 2),
          via1 = _ref2[0],
          via2 = _ref2[1];

      // x3,y3 is the point
      return this._getDistanceToBezierEdge(x1, y1, x2, y2, x3, y3, via1, via2);
    }

    /**
     * Combined function of pointOnLine and pointOnBezier. This gives the coordinates of a point on the line at a certain percentage of the way
     * @param {number} percentage
     * @param {{x: number, y: number}} [via1=this._getViaCoordinates()[0]]
     * @param {{x: number, y: number}} [via2=this._getViaCoordinates()[1]]
     * @returns {{x: number, y: number}}
     * @private
     */

  }, {
    key: 'getPoint',
    value: function getPoint(percentage) {
      var _ref3 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this._getViaCoordinates(),
          _ref4 = (0, _slicedToArray3['default'])(_ref3, 2),
          via1 = _ref4[0],
          via2 = _ref4[1];

      var t = percentage;
      var vec = [];
      vec[0] = Math.pow(1 - t, 3);
      vec[1] = 3 * t * Math.pow(1 - t, 2);
      vec[2] = 3 * Math.pow(t, 2) * (1 - t);
      vec[3] = Math.pow(t, 3);
      var x = vec[0] * this.fromPoint.x + vec[1] * via1.x + vec[2] * via2.x + vec[3] * this.toPoint.x;
      var y = vec[0] * this.fromPoint.y + vec[1] * via1.y + vec[2] * via2.y + vec[3] * this.toPoint.y;

      return { x: x, y: y };
    }
  }]);
  return CubicBezierEdge;
}(_CubicBezierEdgeBase3['default']);

exports['default'] = CubicBezierEdge;

/***/ }),
/* 216 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _BezierEdgeBase2 = __webpack_require__(75);

var _BezierEdgeBase3 = _interopRequireDefault(_BezierEdgeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A Base Class for all Cubic Bezier Edges. Bezier curves are used to model
 * smooth gradual curves in paths between nodes.
 *
 * @extends BezierEdgeBase
 */
var CubicBezierEdgeBase = function (_BezierEdgeBase) {
  (0, _inherits3['default'])(CubicBezierEdgeBase, _BezierEdgeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function CubicBezierEdgeBase(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, CubicBezierEdgeBase);
    return (0, _possibleConstructorReturn3['default'])(this, (CubicBezierEdgeBase.__proto__ || (0, _getPrototypeOf2['default'])(CubicBezierEdgeBase)).call(this, options, body, labelModule));
  }

  /**
   * Calculate the distance between a point (x3,y3) and a line segment from
   * (x1,y1) to (x2,y2).
   * http://stackoverflow.com/questions/849211/shortest-distancae-between-a-point-and-a-line-segment
   * https://en.wikipedia.org/wiki/B%C3%A9zier_curve
   * @param {number} x1 from x
   * @param {number} y1 from y
   * @param {number} x2 to x
   * @param {number} y2 to y
   * @param {number} x3 point to check x
   * @param {number} y3 point to check y
   * @param {Node} via1
   * @param {Node} via2
   * @returns {number}
   * @private
   */


  (0, _createClass3['default'])(CubicBezierEdgeBase, [{
    key: '_getDistanceToBezierEdge',
    value: function _getDistanceToBezierEdge(x1, y1, x2, y2, x3, y3, via1, via2) {
      // x3,y3 is the point
      var minDistance = 1e9;
      var distance = void 0;
      var i = void 0,
          t = void 0,
          x = void 0,
          y = void 0;
      var lastX = x1;
      var lastY = y1;
      var vec = [0, 0, 0, 0];
      for (i = 1; i < 10; i++) {
        t = 0.1 * i;
        vec[0] = Math.pow(1 - t, 3);
        vec[1] = 3 * t * Math.pow(1 - t, 2);
        vec[2] = 3 * Math.pow(t, 2) * (1 - t);
        vec[3] = Math.pow(t, 3);
        x = vec[0] * x1 + vec[1] * via1.x + vec[2] * via2.x + vec[3] * x2;
        y = vec[0] * y1 + vec[1] * via1.y + vec[2] * via2.y + vec[3] * y2;
        if (i > 0) {
          distance = this._getDistanceToLine(lastX, lastY, x, y, x3, y3);
          minDistance = distance < minDistance ? distance : minDistance;
        }
        lastX = x;
        lastY = y;
      }

      return minDistance;
    }
  }]);
  return CubicBezierEdgeBase;
}(_BezierEdgeBase3['default']);

exports['default'] = CubicBezierEdgeBase;

/***/ }),
/* 217 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _slicedToArray2 = __webpack_require__(30);

var _slicedToArray3 = _interopRequireDefault(_slicedToArray2);

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _BezierEdgeBase2 = __webpack_require__(75);

var _BezierEdgeBase3 = _interopRequireDefault(_BezierEdgeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * A Dynamic Bezier Edge. Bezier curves are used to model smooth gradual
 * curves in paths between nodes. The Dynamic piece refers to how the curve
 * reacts to physics changes.
 *
 * @extends BezierEdgeBase
 */
var BezierEdgeDynamic = function (_BezierEdgeBase) {
  (0, _inherits3["default"])(BezierEdgeDynamic, _BezierEdgeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function BezierEdgeDynamic(options, body, labelModule) {
    (0, _classCallCheck3["default"])(this, BezierEdgeDynamic);

    // --> this calls the setOptions below
    var _this = (0, _possibleConstructorReturn3["default"])(this, (BezierEdgeDynamic.__proto__ || (0, _getPrototypeOf2["default"])(BezierEdgeDynamic)).call(this, options, body, labelModule));
    //this.via = undefined; // Here for completeness but not allowed to defined before super() is invoked.


    _this._boundFunction = function () {
      _this.positionBezierNode();
    };
    _this.body.emitter.on("_repositionBezierNodes", _this._boundFunction);
    return _this;
  }

  /**
   *
   * @param {Object} options
   */


  (0, _createClass3["default"])(BezierEdgeDynamic, [{
    key: "setOptions",
    value: function setOptions(options) {
      // check if the physics has changed.
      var physicsChange = false;
      if (this.options.physics !== options.physics) {
        physicsChange = true;
      }

      // set the options and the to and from nodes
      this.options = options;
      this.id = this.options.id;
      this.from = this.body.nodes[this.options.from];
      this.to = this.body.nodes[this.options.to];

      // setup the support node and connect
      this.setupSupportNode();
      this.connect();

      // when we change the physics state of the edge, we reposition the support node.
      if (physicsChange === true) {
        this.via.setOptions({ physics: this.options.physics });
        this.positionBezierNode();
      }
    }

    /**
     * Connects an edge to node(s)
     */

  }, {
    key: "connect",
    value: function connect() {
      this.from = this.body.nodes[this.options.from];
      this.to = this.body.nodes[this.options.to];
      if (this.from === undefined || this.to === undefined || this.options.physics === false) {
        this.via.setOptions({ physics: false });
      } else {
        // fix weird behaviour where a self referencing node has physics enabled
        if (this.from.id === this.to.id) {
          this.via.setOptions({ physics: false });
        } else {
          this.via.setOptions({ physics: true });
        }
      }
    }

    /**
     * remove the support nodes
     * @returns {boolean}
     */

  }, {
    key: "cleanup",
    value: function cleanup() {
      this.body.emitter.off("_repositionBezierNodes", this._boundFunction);
      if (this.via !== undefined) {
        delete this.body.nodes[this.via.id];
        this.via = undefined;
        return true;
      }
      return false;
    }

    /**
     * Bezier curves require an anchor point to calculate the smooth flow. These points are nodes. These nodes are invisible but
     * are used for the force calculation.
     *
     * The changed data is not called, if needed, it is returned by the main edge constructor.
     * @private
     */

  }, {
    key: "setupSupportNode",
    value: function setupSupportNode() {
      if (this.via === undefined) {
        var nodeId = "edgeId:" + this.id;
        var node = this.body.functions.createNode({
          id: nodeId,
          shape: 'circle',
          physics: true,
          hidden: true
        });
        this.body.nodes[nodeId] = node;
        this.via = node;
        this.via.parentEdgeId = this.id;
        this.positionBezierNode();
      }
    }

    /**
     * Positions bezier node
     */

  }, {
    key: "positionBezierNode",
    value: function positionBezierNode() {
      if (this.via !== undefined && this.from !== undefined && this.to !== undefined) {
        this.via.x = 0.5 * (this.from.x + this.to.x);
        this.via.y = 0.5 * (this.from.y + this.to.y);
      } else if (this.via !== undefined) {
        this.via.x = 0;
        this.via.y = 0;
      }
    }

    /**
     * Draw a line between two nodes
     * @param {CanvasRenderingContext2D} ctx
     * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
     * @param {Node} viaNode
     * @private
     */

  }, {
    key: "_line",
    value: function _line(ctx, values, viaNode) {
      this._bezierCurve(ctx, values, viaNode);
    }

    /**
     *
     * @returns {Node|undefined|*|{index, line, column}}
     */

  }, {
    key: "getViaNode",
    value: function getViaNode() {
      return this.via;
    }

    /**
     * Combined function of pointOnLine and pointOnBezier. This gives the coordinates of a point on the line at a certain percentage of the way
     *
     * @param {number} percentage
     * @param {Node} viaNode
     * @returns {{x: number, y: number}}
     * @private
     */

  }, {
    key: "getPoint",
    value: function getPoint(percentage) {
      var viaNode = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.via;

      var t = percentage;
      var x = void 0,
          y = void 0;
      if (this.from === this.to) {
        var _getCircleData = this._getCircleData(this.from),
            _getCircleData2 = (0, _slicedToArray3["default"])(_getCircleData, 3),
            cx = _getCircleData2[0],
            cy = _getCircleData2[1],
            cr = _getCircleData2[2];

        var a = 2 * Math.PI * (1 - t);
        x = cx + cr * Math.sin(a);
        y = cy + cr - cr * (1 - Math.cos(a));
      } else {
        x = Math.pow(1 - t, 2) * this.fromPoint.x + 2 * t * (1 - t) * viaNode.x + Math.pow(t, 2) * this.toPoint.x;
        y = Math.pow(1 - t, 2) * this.fromPoint.y + 2 * t * (1 - t) * viaNode.y + Math.pow(t, 2) * this.toPoint.y;
      }

      return { x: x, y: y };
    }

    /**
     *
     * @param {Node} nearNode
     * @param {CanvasRenderingContext2D} ctx
     * @returns {*}
     * @private
     */

  }, {
    key: "_findBorderPosition",
    value: function _findBorderPosition(nearNode, ctx) {
      return this._findBorderPositionBezier(nearNode, ctx, this.via);
    }

    /**
     *
     * @param {number} x1
     * @param {number} y1
     * @param {number} x2
     * @param {number} y2
     * @param {number} x3
     * @param {number} y3
     * @returns {number}
     * @private
     */

  }, {
    key: "_getDistanceToEdge",
    value: function _getDistanceToEdge(x1, y1, x2, y2, x3, y3) {
      // x3,y3 is the point
      return this._getDistanceToBezierEdge(x1, y1, x2, y2, x3, y3, this.via);
    }
  }]);
  return BezierEdgeDynamic;
}(_BezierEdgeBase3["default"]);

exports["default"] = BezierEdgeDynamic;

/***/ }),
/* 218 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _BezierEdgeBase2 = __webpack_require__(75);

var _BezierEdgeBase3 = _interopRequireDefault(_BezierEdgeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A Static Bezier Edge. Bezier curves are used to model smooth gradual
 * curves in paths between nodes.
 *
 * @extends BezierEdgeBase
 */
var BezierEdgeStatic = function (_BezierEdgeBase) {
  (0, _inherits3['default'])(BezierEdgeStatic, _BezierEdgeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function BezierEdgeStatic(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, BezierEdgeStatic);
    return (0, _possibleConstructorReturn3['default'])(this, (BezierEdgeStatic.__proto__ || (0, _getPrototypeOf2['default'])(BezierEdgeStatic)).call(this, options, body, labelModule));
  }

  /**
   * Draw a line between two nodes
   * @param {CanvasRenderingContext2D} ctx
   * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
   * @param {Node} viaNode
   * @private
   */


  (0, _createClass3['default'])(BezierEdgeStatic, [{
    key: '_line',
    value: function _line(ctx, values, viaNode) {
      this._bezierCurve(ctx, values, viaNode);
    }

    /**
     *
     * @returns {Array.<{x: number, y: number}>}
     */

  }, {
    key: 'getViaNode',
    value: function getViaNode() {
      return this._getViaCoordinates();
    }

    /**
     * We do not use the to and fromPoints here to make the via nodes the same as edges without arrows.
     * @returns {{x: undefined, y: undefined}}
     * @private
     */

  }, {
    key: '_getViaCoordinates',
    value: function _getViaCoordinates() {
      // Assumption: x/y coordinates in from/to always defined
      var xVia = undefined;
      var yVia = undefined;
      var factor = this.options.smooth.roundness;
      var type = this.options.smooth.type;
      var dx = Math.abs(this.from.x - this.to.x);
      var dy = Math.abs(this.from.y - this.to.y);
      if (type === 'discrete' || type === 'diagonalCross') {
        var stepX = void 0;
        var stepY = void 0;

        if (dx <= dy) {
          stepX = stepY = factor * dy;
        } else {
          stepX = stepY = factor * dx;
        }

        if (this.from.x > this.to.x) stepX = -stepX;
        if (this.from.y >= this.to.y) stepY = -stepY;

        xVia = this.from.x + stepX;
        yVia = this.from.y + stepY;

        if (type === "discrete") {
          if (dx <= dy) {
            xVia = dx < factor * dy ? this.from.x : xVia;
          } else {
            yVia = dy < factor * dx ? this.from.y : yVia;
          }
        }
      } else if (type === "straightCross") {
        var _stepX = (1 - factor) * dx;
        var _stepY = (1 - factor) * dy;

        if (dx <= dy) {
          // up - down
          _stepX = 0;
          if (this.from.y < this.to.y) _stepY = -_stepY;
        } else {
          // left - right
          if (this.from.x < this.to.x) _stepX = -_stepX;
          _stepY = 0;
        }
        xVia = this.to.x + _stepX;
        yVia = this.to.y + _stepY;
      } else if (type === 'horizontal') {
        var _stepX2 = (1 - factor) * dx;
        if (this.from.x < this.to.x) _stepX2 = -_stepX2;
        xVia = this.to.x + _stepX2;
        yVia = this.from.y;
      } else if (type === 'vertical') {
        var _stepY2 = (1 - factor) * dy;
        if (this.from.y < this.to.y) _stepY2 = -_stepY2;
        xVia = this.from.x;
        yVia = this.to.y + _stepY2;
      } else if (type === 'curvedCW') {
        dx = this.to.x - this.from.x;
        dy = this.from.y - this.to.y;
        var radius = Math.sqrt(dx * dx + dy * dy);
        var pi = Math.PI;

        var originalAngle = Math.atan2(dy, dx);
        var myAngle = (originalAngle + (factor * 0.5 + 0.5) * pi) % (2 * pi);

        xVia = this.from.x + (factor * 0.5 + 0.5) * radius * Math.sin(myAngle);
        yVia = this.from.y + (factor * 0.5 + 0.5) * radius * Math.cos(myAngle);
      } else if (type === 'curvedCCW') {
        dx = this.to.x - this.from.x;
        dy = this.from.y - this.to.y;
        var _radius = Math.sqrt(dx * dx + dy * dy);
        var _pi = Math.PI;

        var _originalAngle = Math.atan2(dy, dx);
        var _myAngle = (_originalAngle + (-factor * 0.5 + 0.5) * _pi) % (2 * _pi);

        xVia = this.from.x + (factor * 0.5 + 0.5) * _radius * Math.sin(_myAngle);
        yVia = this.from.y + (factor * 0.5 + 0.5) * _radius * Math.cos(_myAngle);
      } else {
        // continuous
        var _stepX3 = void 0;
        var _stepY3 = void 0;

        if (dx <= dy) {
          _stepX3 = _stepY3 = factor * dy;
        } else {
          _stepX3 = _stepY3 = factor * dx;
        }

        if (this.from.x > this.to.x) _stepX3 = -_stepX3;
        if (this.from.y >= this.to.y) _stepY3 = -_stepY3;

        xVia = this.from.x + _stepX3;
        yVia = this.from.y + _stepY3;

        if (dx <= dy) {
          if (this.from.x <= this.to.x) {
            xVia = this.to.x < xVia ? this.to.x : xVia;
          } else {
            xVia = this.to.x > xVia ? this.to.x : xVia;
          }
        } else {
          if (this.from.y >= this.to.y) {
            yVia = this.to.y > yVia ? this.to.y : yVia;
          } else {
            yVia = this.to.y < yVia ? this.to.y : yVia;
          }
        }
      }
      return { x: xVia, y: yVia };
    }

    /**
     *
     * @param {Node} nearNode
     * @param {CanvasRenderingContext2D} ctx
     * @param {Object} options
     * @returns {*}
     * @private
     */

  }, {
    key: '_findBorderPosition',
    value: function _findBorderPosition(nearNode, ctx) {
      var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

      return this._findBorderPositionBezier(nearNode, ctx, options.via);
    }

    /**
     *
     * @param {number} x1
     * @param {number} y1
     * @param {number} x2
     * @param {number} y2
     * @param {number} x3
     * @param {number} y3
     * @param {Node} viaNode
     * @returns {number}
     * @private
     */

  }, {
    key: '_getDistanceToEdge',
    value: function _getDistanceToEdge(x1, y1, x2, y2, x3, y3) {
      var viaNode = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : this._getViaCoordinates();
      // x3,y3 is the point
      return this._getDistanceToBezierEdge(x1, y1, x2, y2, x3, y3, viaNode);
    }

    /**
     * Combined function of pointOnLine and pointOnBezier. This gives the coordinates of a point on the line at a certain percentage of the way
     * @param {number} percentage
     * @param {Node} viaNode
     * @returns {{x: number, y: number}}
     * @private
     */

  }, {
    key: 'getPoint',
    value: function getPoint(percentage) {
      var viaNode = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this._getViaCoordinates();

      var t = percentage;
      var x = Math.pow(1 - t, 2) * this.fromPoint.x + 2 * t * (1 - t) * viaNode.x + Math.pow(t, 2) * this.toPoint.x;
      var y = Math.pow(1 - t, 2) * this.fromPoint.y + 2 * t * (1 - t) * viaNode.y + Math.pow(t, 2) * this.toPoint.y;

      return { x: x, y: y };
    }
  }]);
  return BezierEdgeStatic;
}(_BezierEdgeBase3['default']);

exports['default'] = BezierEdgeStatic;

/***/ }),
/* 219 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _EdgeBase2 = __webpack_require__(118);

var _EdgeBase3 = _interopRequireDefault(_EdgeBase2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * A Straight Edge.
 *
 * @extends EdgeBase
 */
var StraightEdge = function (_EdgeBase) {
  (0, _inherits3['default'])(StraightEdge, _EdgeBase);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Label} labelModule
   */
  function StraightEdge(options, body, labelModule) {
    (0, _classCallCheck3['default'])(this, StraightEdge);
    return (0, _possibleConstructorReturn3['default'])(this, (StraightEdge.__proto__ || (0, _getPrototypeOf2['default'])(StraightEdge)).call(this, options, body, labelModule));
  }

  /**
   * Draw a line between two nodes
   * @param {CanvasRenderingContext2D} ctx
   * @param {{toArrow: boolean, toArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), toArrowType: *, middleArrow: boolean, middleArrowScale: (number|allOptions.edges.arrows.middle.scaleFactor|{number}|Array), middleArrowType: (allOptions.edges.arrows.middle.type|{string}|string|*), fromArrow: boolean, fromArrowScale: (allOptions.edges.arrows.to.scaleFactor|{number}|allOptions.edges.arrows.middle.scaleFactor|allOptions.edges.arrows.from.scaleFactor|Array|number), fromArrowType: *, arrowStrikethrough: (*|boolean|allOptions.edges.arrowStrikethrough|{boolean}), color: undefined, inheritsColor: (string|string|string|allOptions.edges.color.inherit|{string, boolean}|Array|*), opacity: *, hidden: *, length: *, shadow: *, shadowColor: *, shadowSize: *, shadowX: *, shadowY: *, dashes: (*|boolean|Array|allOptions.edges.dashes|{boolean, array}), width: *}} values
   * @private
   */


  (0, _createClass3['default'])(StraightEdge, [{
    key: '_line',
    value: function _line(ctx, values) {
      // draw a straight line
      ctx.beginPath();
      ctx.moveTo(this.fromPoint.x, this.fromPoint.y);
      ctx.lineTo(this.toPoint.x, this.toPoint.y);
      // draw shadow if enabled
      this.enableShadow(ctx, values);
      ctx.stroke();
      this.disableShadow(ctx, values);
    }

    /**
     *
     * @returns {undefined}
     */

  }, {
    key: 'getViaNode',
    value: function getViaNode() {
      return undefined;
    }

    /**
     * Combined function of pointOnLine and pointOnBezier. This gives the coordinates of a point on the line at a certain percentage of the way
     *
     * @param {number} percentage
     * @returns {{x: number, y: number}}
     * @private
     */

  }, {
    key: 'getPoint',
    value: function getPoint(percentage) {
      return {
        x: (1 - percentage) * this.fromPoint.x + percentage * this.toPoint.x,
        y: (1 - percentage) * this.fromPoint.y + percentage * this.toPoint.y
      };
    }

    /**
     *
     * @param {Node} nearNode
     * @param {CanvasRenderingContext2D} ctx
     * @returns {{x: number, y: number}}
     * @private
     */

  }, {
    key: '_findBorderPosition',
    value: function _findBorderPosition(nearNode, ctx) {
      var node1 = this.to;
      var node2 = this.from;
      if (nearNode.id === this.from.id) {
        node1 = this.from;
        node2 = this.to;
      }

      var angle = Math.atan2(node1.y - node2.y, node1.x - node2.x);
      var dx = node1.x - node2.x;
      var dy = node1.y - node2.y;
      var edgeSegmentLength = Math.sqrt(dx * dx + dy * dy);
      var toBorderDist = nearNode.distanceToBorder(ctx, angle);
      var toBorderPoint = (edgeSegmentLength - toBorderDist) / edgeSegmentLength;

      var borderPos = {};
      borderPos.x = (1 - toBorderPoint) * node2.x + toBorderPoint * node1.x;
      borderPos.y = (1 - toBorderPoint) * node2.y + toBorderPoint * node1.y;

      return borderPos;
    }

    /**
     *
     * @param {number} x1
     * @param {number} y1
     * @param {number} x2
     * @param {number} y2
     * @param {number} x3
     * @param {number} y3
     * @returns {number}
     * @private
     */

  }, {
    key: '_getDistanceToEdge',
    value: function _getDistanceToEdge(x1, y1, x2, y2, x3, y3) {
      // x3,y3 is the point
      return this._getDistanceToLine(x1, y1, x2, y2, x3, y3);
    }
  }]);
  return StraightEdge;
}(_EdgeBase3['default']);

exports['default'] = StraightEdge;

/***/ }),
/* 220 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _keys = __webpack_require__(8);

var _keys2 = _interopRequireDefault(_keys);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var BarnesHutSolver = __webpack_require__(120)['default'];
var Repulsion = __webpack_require__(221)['default'];
var HierarchicalRepulsion = __webpack_require__(222)['default'];
var SpringSolver = __webpack_require__(223)['default'];
var HierarchicalSpringSolver = __webpack_require__(224)['default'];
var CentralGravitySolver = __webpack_require__(121)['default'];
var ForceAtlas2BasedRepulsionSolver = __webpack_require__(225)['default'];
var ForceAtlas2BasedCentralGravitySolver = __webpack_require__(226)['default'];
var util = __webpack_require__(2);
var EndPoints = __webpack_require__(119)['default']; // for debugging with _drawForces()


/**
 * The physics engine
 */

var PhysicsEngine = function () {
  /**
   * @param {Object} body
   */
  function PhysicsEngine(body) {
    (0, _classCallCheck3['default'])(this, PhysicsEngine);

    this.body = body;
    this.physicsBody = { physicsNodeIndices: [], physicsEdgeIndices: [], forces: {}, velocities: {} };

    this.physicsEnabled = true;
    this.simulationInterval = 1000 / 60;
    this.requiresTimeout = true;
    this.previousStates = {};
    this.referenceState = {};
    this.freezeCache = {};
    this.renderTimer = undefined;

    // parameters for the adaptive timestep
    this.adaptiveTimestep = false;
    this.adaptiveTimestepEnabled = false;
    this.adaptiveCounter = 0;
    this.adaptiveInterval = 3;

    this.stabilized = false;
    this.startedStabilization = false;
    this.stabilizationIterations = 0;
    this.ready = false; // will be set to true if the stabilize

    // default options
    this.options = {};
    this.defaultOptions = {
      enabled: true,
      barnesHut: {
        theta: 0.5,
        gravitationalConstant: -2000,
        centralGravity: 0.3,
        springLength: 95,
        springConstant: 0.04,
        damping: 0.09,
        avoidOverlap: 0
      },
      forceAtlas2Based: {
        theta: 0.5,
        gravitationalConstant: -50,
        centralGravity: 0.01,
        springConstant: 0.08,
        springLength: 100,
        damping: 0.4,
        avoidOverlap: 0
      },
      repulsion: {
        centralGravity: 0.2,
        springLength: 200,
        springConstant: 0.05,
        nodeDistance: 100,
        damping: 0.09,
        avoidOverlap: 0
      },
      hierarchicalRepulsion: {
        centralGravity: 0.0,
        springLength: 100,
        springConstant: 0.01,
        nodeDistance: 120,
        damping: 0.09
      },
      maxVelocity: 50,
      minVelocity: 0.75, // px/s
      solver: 'barnesHut',
      stabilization: {
        enabled: true,
        iterations: 1000, // maximum number of iteration to stabilize
        updateInterval: 50,
        onlyDynamicEdges: false,
        fit: true
      },
      timestep: 0.5,
      adaptiveTimestep: true
    };
    util.extend(this.options, this.defaultOptions);
    this.timestep = 0.5;
    this.layoutFailed = false;

    this.bindEventListeners();
  }

  /**
   * Binds event listeners
   */


  (0, _createClass3['default'])(PhysicsEngine, [{
    key: 'bindEventListeners',
    value: function bindEventListeners() {
      var _this = this;

      this.body.emitter.on('initPhysics', function () {
        _this.initPhysics();
      });
      this.body.emitter.on('_layoutFailed', function () {
        _this.layoutFailed = true;
      });
      this.body.emitter.on('resetPhysics', function () {
        _this.stopSimulation();_this.ready = false;
      });
      this.body.emitter.on('disablePhysics', function () {
        _this.physicsEnabled = false;_this.stopSimulation();
      });
      this.body.emitter.on('restorePhysics', function () {
        _this.setOptions(_this.options);
        if (_this.ready === true) {
          _this.startSimulation();
        }
      });
      this.body.emitter.on('startSimulation', function () {
        if (_this.ready === true) {
          _this.startSimulation();
        }
      });
      this.body.emitter.on('stopSimulation', function () {
        _this.stopSimulation();
      });
      this.body.emitter.on('destroy', function () {
        _this.stopSimulation(false);
        _this.body.emitter.off();
      });
      this.body.emitter.on("_dataChanged", function () {
        // Nodes and/or edges have been added or removed, update shortcut lists.
        _this.updatePhysicsData();
      });

      // debug: show forces
      // this.body.emitter.on("afterDrawing", (ctx) => {this._drawForces(ctx);});
    }

    /**
     * set the physics options
     * @param {Object} options
     */

  }, {
    key: 'setOptions',
    value: function setOptions(options) {
      if (options !== undefined) {
        if (options === false) {
          this.options.enabled = false;
          this.physicsEnabled = false;
          this.stopSimulation();
        } else if (options === true) {
          this.options.enabled = true;
          this.physicsEnabled = true;
          this.startSimulation();
        } else {
          this.physicsEnabled = true;
          util.selectiveNotDeepExtend(['stabilization'], this.options, options);
          util.mergeOptions(this.options, options, 'stabilization');

          if (options.enabled === undefined) {
            this.options.enabled = true;
          }

          if (this.options.enabled === false) {
            this.physicsEnabled = false;
            this.stopSimulation();
          }

          // set the timestep
          this.timestep = this.options.timestep;
        }
      }
      this.init();
    }

    /**
     * configure the engine.
     */

  }, {
    key: 'init',
    value: function init() {
      var options;
      if (this.options.solver === 'forceAtlas2Based') {
        options = this.options.forceAtlas2Based;
        this.nodesSolver = new ForceAtlas2BasedRepulsionSolver(this.body, this.physicsBody, options);
        this.edgesSolver = new SpringSolver(this.body, this.physicsBody, options);
        this.gravitySolver = new ForceAtlas2BasedCentralGravitySolver(this.body, this.physicsBody, options);
      } else if (this.options.solver === 'repulsion') {
        options = this.options.repulsion;
        this.nodesSolver = new Repulsion(this.body, this.physicsBody, options);
        this.edgesSolver = new SpringSolver(this.body, this.physicsBody, options);
        this.gravitySolver = new CentralGravitySolver(this.body, this.physicsBody, options);
      } else if (this.options.solver === 'hierarchicalRepulsion') {
        options = this.options.hierarchicalRepulsion;
        this.nodesSolver = new HierarchicalRepulsion(this.body, this.physicsBody, options);
        this.edgesSolver = new HierarchicalSpringSolver(this.body, this.physicsBody, options);
        this.gravitySolver = new CentralGravitySolver(this.body, this.physicsBody, options);
      } else {
        // barnesHut
        options = this.options.barnesHut;
        this.nodesSolver = new BarnesHutSolver(this.body, this.physicsBody, options);
        this.edgesSolver = new SpringSolver(this.body, this.physicsBody, options);
        this.gravitySolver = new CentralGravitySolver(this.body, this.physicsBody, options);
      }

      this.modelOptions = options;
    }

    /**
     * initialize the engine
     */

  }, {
    key: 'initPhysics',
    value: function initPhysics() {
      if (this.physicsEnabled === true && this.options.enabled === true) {
        if (this.options.stabilization.enabled === true) {
          this.stabilize();
        } else {
          this.stabilized = false;
          this.ready = true;
          this.body.emitter.emit('fit', {}, this.layoutFailed); // if the layout failed, we use the approximation for the zoom
          this.startSimulation();
        }
      } else {
        this.ready = true;
        this.body.emitter.emit('fit');
      }
    }

    /**
     * Start the simulation
     */

  }, {
    key: 'startSimulation',
    value: function startSimulation() {
      if (this.physicsEnabled === true && this.options.enabled === true) {
        this.stabilized = false;

        // when visible, adaptivity is disabled.
        this.adaptiveTimestep = false;

        // this sets the width of all nodes initially which could be required for the avoidOverlap
        this.body.emitter.emit("_resizeNodes");
        if (this.viewFunction === undefined) {
          this.viewFunction = this.simulationStep.bind(this);
          this.body.emitter.on('initRedraw', this.viewFunction);
          this.body.emitter.emit('_startRendering');
        }
      } else {
        this.body.emitter.emit('_redraw');
      }
    }

    /**
     * Stop the simulation, force stabilization.
     * @param {boolean} [emit=true]
     */

  }, {
    key: 'stopSimulation',
    value: function stopSimulation() {
      var emit = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;

      this.stabilized = true;
      if (emit === true) {
        this._emitStabilized();
      }
      if (this.viewFunction !== undefined) {
        this.body.emitter.off('initRedraw', this.viewFunction);
        this.viewFunction = undefined;
        if (emit === true) {
          this.body.emitter.emit('_stopRendering');
        }
      }
    }

    /**
     * The viewFunction inserts this step into each render loop. It calls the physics tick and handles the cleanup at stabilized.
     *
     */

  }, {
    key: 'simulationStep',
    value: function simulationStep() {
      // check if the physics have settled
      var startTime = Date.now();
      this.physicsTick();
      var physicsTime = Date.now() - startTime;

      // run double speed if it is a little graph
      if ((physicsTime < 0.4 * this.simulationInterval || this.runDoubleSpeed === true) && this.stabilized === false) {
        this.physicsTick();

        // this makes sure there is no jitter. The decision is taken once to run it at double speed.
        this.runDoubleSpeed = true;
      }

      if (this.stabilized === true) {
        this.stopSimulation();
      }
    }

    /**
     * trigger the stabilized event.
     *
     * @param {number} [amountOfIterations=this.stabilizationIterations]
     * @private
     */

  }, {
    key: '_emitStabilized',
    value: function _emitStabilized() {
      var _this2 = this;

      var amountOfIterations = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.stabilizationIterations;

      if (this.stabilizationIterations > 1 || this.startedStabilization === true) {
        setTimeout(function () {
          _this2.body.emitter.emit('stabilized', { iterations: amountOfIterations });
          _this2.startedStabilization = false;
          _this2.stabilizationIterations = 0;
        }, 0);
      }
    }

    /**
     * Calculate the forces for one physics iteration and move the nodes.
     * @private
     */

  }, {
    key: 'physicsStep',
    value: function physicsStep() {
      this.gravitySolver.solve();
      this.nodesSolver.solve();
      this.edgesSolver.solve();
      this.moveNodes();
    }

    /**
     * Make dynamic adjustments to the timestep, based on current state.
     *
     * Helper function for physicsTick().
     * @private
     */

  }, {
    key: 'adjustTimeStep',
    value: function adjustTimeStep() {
      var factor = 1.2; // Factor for increasing the timestep on success.

      // we compare the two steps. if it is acceptable we double the step.
      if (this._evaluateStepQuality() === true) {
        this.timestep = factor * this.timestep;
      } else {
        // if not, we decrease the step to a minimum of the options timestep.
        // if the decreased timestep is smaller than the options step, we do not reset the counter
        // we assume that the options timestep is stable enough.
        if (this.timestep / factor < this.options.timestep) {
          this.timestep = this.options.timestep;
        } else {
          // if the timestep was larger than 2 times the option one we check the adaptivity again to ensure
          // that large instabilities do not form.
          this.adaptiveCounter = -1; // check again next iteration
          this.timestep = Math.max(this.options.timestep, this.timestep / factor);
        }
      }
    }

    /**
     * A single simulation step (or 'tick') in the physics simulation
     *
     * @private
     */

  }, {
    key: 'physicsTick',
    value: function physicsTick() {
      this._startStabilizing(); // this ensures that there is no start event when the network is already stable.
      if (this.stabilized === true) return;

      // adaptivity means the timestep adapts to the situation, only applicable for stabilization
      if (this.adaptiveTimestep === true && this.adaptiveTimestepEnabled === true) {
        // timestep remains stable for "interval" iterations.
        var doAdaptive = this.adaptiveCounter % this.adaptiveInterval === 0;

        if (doAdaptive) {
          // first the big step and revert.
          this.timestep = 2 * this.timestep;
          this.physicsStep();
          this.revert(); // saves the reference state

          // now the normal step. Since this is the last step, it is the more stable one and we will take this.
          this.timestep = 0.5 * this.timestep;

          // since it's half the step, we do it twice.
          this.physicsStep();
          this.physicsStep();

          this.adjustTimeStep();
        } else {
          this.physicsStep(); // normal step, keeping timestep constant
        }

        this.adaptiveCounter += 1;
      } else {
        // case for the static timestep, we reset it to the one in options and take a normal step.
        this.timestep = this.options.timestep;
        this.physicsStep();
      }

      if (this.stabilized === true) this.revert();
      this.stabilizationIterations++;
    }

    /**
     * Nodes and edges can have the physics toggles on or off. A collection of indices is created here so we can skip the check all the time.
     *
     * @private
     */

  }, {
    key: 'updatePhysicsData',
    value: function updatePhysicsData() {
      this.physicsBody.forces = {};
      this.physicsBody.physicsNodeIndices = [];
      this.physicsBody.physicsEdgeIndices = [];
      var nodes = this.body.nodes;
      var edges = this.body.edges;

      // get node indices for physics
      for (var nodeId in nodes) {
        if (nodes.hasOwnProperty(nodeId)) {
          if (nodes[nodeId].options.physics === true) {
            this.physicsBody.physicsNodeIndices.push(nodes[nodeId].id);
          }
        }
      }

      // get edge indices for physics
      for (var edgeId in edges) {
        if (edges.hasOwnProperty(edgeId)) {
          if (edges[edgeId].options.physics === true) {
            this.physicsBody.physicsEdgeIndices.push(edges[edgeId].id);
          }
        }
      }

      // get the velocity and the forces vector
      for (var i = 0; i < this.physicsBody.physicsNodeIndices.length; i++) {
        var _nodeId = this.physicsBody.physicsNodeIndices[i];
        this.physicsBody.forces[_nodeId] = { x: 0, y: 0 };

        // forces can be reset because they are recalculated. Velocities have to persist.
        if (this.physicsBody.velocities[_nodeId] === undefined) {
          this.physicsBody.velocities[_nodeId] = { x: 0, y: 0 };
        }
      }

      // clean deleted nodes from the velocity vector
      for (var _nodeId2 in this.physicsBody.velocities) {
        if (nodes[_nodeId2] === undefined) {
          delete this.physicsBody.velocities[_nodeId2];
        }
      }
    }

    /**
     * Revert the simulation one step. This is done so after stabilization, every new start of the simulation will also say stabilized.
     */

  }, {
    key: 'revert',
    value: function revert() {
      var nodeIds = (0, _keys2['default'])(this.previousStates);
      var nodes = this.body.nodes;
      var velocities = this.physicsBody.velocities;
      this.referenceState = {};

      for (var i = 0; i < nodeIds.length; i++) {
        var nodeId = nodeIds[i];
        if (nodes[nodeId] !== undefined) {
          if (nodes[nodeId].options.physics === true) {
            this.referenceState[nodeId] = {
              positions: { x: nodes[nodeId].x, y: nodes[nodeId].y }
            };
            velocities[nodeId].x = this.previousStates[nodeId].vx;
            velocities[nodeId].y = this.previousStates[nodeId].vy;
            nodes[nodeId].x = this.previousStates[nodeId].x;
            nodes[nodeId].y = this.previousStates[nodeId].y;
          }
        } else {
          delete this.previousStates[nodeId];
        }
      }
    }

    /**
     * This compares the reference state to the current state
     *
     * @returns {boolean}
     * @private
     */

  }, {
    key: '_evaluateStepQuality',
    value: function _evaluateStepQuality() {
      var dx = void 0,
          dy = void 0,
          dpos = void 0;
      var nodes = this.body.nodes;
      var reference = this.referenceState;
      var posThreshold = 0.3;

      for (var nodeId in this.referenceState) {
        if (this.referenceState.hasOwnProperty(nodeId) && nodes[nodeId] !== undefined) {
          dx = nodes[nodeId].x - reference[nodeId].positions.x;
          dy = nodes[nodeId].y - reference[nodeId].positions.y;

          dpos = Math.sqrt(Math.pow(dx, 2) + Math.pow(dy, 2));

          if (dpos > posThreshold) {
            return false;
          }
        }
      }
      return true;
    }

    /**
     * move the nodes one timestep and check if they are stabilized
     */

  }, {
    key: 'moveNodes',
    value: function moveNodes() {
      var nodeIndices = this.physicsBody.physicsNodeIndices;
      var maxNodeVelocity = 0;
      var averageNodeVelocity = 0;

      // the velocity threshold (energy in the system) for the adaptivity toggle
      var velocityAdaptiveThreshold = 5;

      for (var i = 0; i < nodeIndices.length; i++) {
        var nodeId = nodeIndices[i];
        var nodeVelocity = this._performStep(nodeId);
        // stabilized is true if stabilized is true and velocity is smaller than vmin --> all nodes must be stabilized
        maxNodeVelocity = Math.max(maxNodeVelocity, nodeVelocity);
        averageNodeVelocity += nodeVelocity;
      }

      // evaluating the stabilized and adaptiveTimestepEnabled conditions
      this.adaptiveTimestepEnabled = averageNodeVelocity / nodeIndices.length < velocityAdaptiveThreshold;
      this.stabilized = maxNodeVelocity < this.options.minVelocity;
    }

    /**
     * Calculate new velocity for a coordinate direction
     *
     * @param {number} v  velocity for current coordinate
     * @param {number} f  regular force for current coordinate
     * @param {number} m  mass of current node
     * @returns {number} new velocity for current coordinate
     * @private
     */

  }, {
    key: 'calculateComponentVelocity',
    value: function calculateComponentVelocity(v, f, m) {
      var df = this.modelOptions.damping * v; // damping force
      var a = (f - df) / m; // acceleration

      v += a * this.timestep;

      // Put a limit on the velocities if it is really high
      var maxV = this.options.maxVelocity || 1e9;
      if (Math.abs(v) > maxV) {
        v = v > 0 ? maxV : -maxV;
      }

      return v;
    }

    /**
     * Perform the actual step
     *
     * @param {Node.id} nodeId
     * @returns {number} the new velocity of given node
     * @private
     */

  }, {
    key: '_performStep',
    value: function _performStep(nodeId) {
      var node = this.body.nodes[nodeId];
      var force = this.physicsBody.forces[nodeId];
      var velocity = this.physicsBody.velocities[nodeId];

      // store the state so we can revert
      this.previousStates[nodeId] = { x: node.x, y: node.y, vx: velocity.x, vy: velocity.y };

      if (node.options.fixed.x === false) {
        velocity.x = this.calculateComponentVelocity(velocity.x, force.x, node.options.mass);
        node.x += velocity.x * this.timestep;
      } else {
        force.x = 0;
        velocity.x = 0;
      }

      if (node.options.fixed.y === false) {
        velocity.y = this.calculateComponentVelocity(velocity.y, force.y, node.options.mass);
        node.y += velocity.y * this.timestep;
      } else {
        force.y = 0;
        velocity.y = 0;
      }

      var totalVelocity = Math.sqrt(Math.pow(velocity.x, 2) + Math.pow(velocity.y, 2));
      return totalVelocity;
    }

    /**
     * When initializing and stabilizing, we can freeze nodes with a predefined position.
     * This greatly speeds up stabilization because only the supportnodes for the smoothCurves have to settle.
     *
     * @private
     */

  }, {
    key: '_freezeNodes',
    value: function _freezeNodes() {
      var nodes = this.body.nodes;
      for (var id in nodes) {
        if (nodes.hasOwnProperty(id)) {
          if (nodes[id].x && nodes[id].y) {
            var fixed = nodes[id].options.fixed;
            this.freezeCache[id] = { x: fixed.x, y: fixed.y };
            fixed.x = true;
            fixed.y = true;
          }
        }
      }
    }

    /**
     * Unfreezes the nodes that have been frozen by _freezeDefinedNodes.
     *
     * @private
     */

  }, {
    key: '_restoreFrozenNodes',
    value: function _restoreFrozenNodes() {
      var nodes = this.body.nodes;
      for (var id in nodes) {
        if (nodes.hasOwnProperty(id)) {
          if (this.freezeCache[id] !== undefined) {
            nodes[id].options.fixed.x = this.freezeCache[id].x;
            nodes[id].options.fixed.y = this.freezeCache[id].y;
          }
        }
      }
      this.freezeCache = {};
    }

    /**
     * Find a stable position for all nodes
     *
     * @param {number} [iterations=this.options.stabilization.iterations]
     */

  }, {
    key: 'stabilize',
    value: function stabilize() {
      var _this3 = this;

      var iterations = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.options.stabilization.iterations;

      if (typeof iterations !== 'number') {
        iterations = this.options.stabilization.iterations;
        console.log('The stabilize method needs a numeric amount of iterations. Switching to default: ', iterations);
      }

      if (this.physicsBody.physicsNodeIndices.length === 0) {
        this.ready = true;
        return;
      }

      // enable adaptive timesteps
      this.adaptiveTimestep = true && this.options.adaptiveTimestep;

      // this sets the width of all nodes initially which could be required for the avoidOverlap
      this.body.emitter.emit("_resizeNodes");

      this.stopSimulation(); // stop the render loop
      this.stabilized = false;

      // block redraw requests
      this.body.emitter.emit('_blockRedraw');
      this.targetIterations = iterations;

      // start the stabilization
      if (this.options.stabilization.onlyDynamicEdges === true) {
        this._freezeNodes();
      }
      this.stabilizationIterations = 0;

      setTimeout(function () {
        return _this3._stabilizationBatch();
      }, 0);
    }

    /**
     * If not already stabilizing, start it and emit a start event.
     *
     * @returns {boolean} true if stabilization started with this call
     * @private
     */

  }, {
    key: '_startStabilizing',
    value: function _startStabilizing() {
      if (this.startedStabilization === true) return false;

      this.body.emitter.emit('startStabilizing');
      this.startedStabilization = true;
      return true;
    }

    /**
     * One batch of stabilization
     * @private
     */

  }, {
    key: '_stabilizationBatch',
    value: function _stabilizationBatch() {
      var _this4 = this;

      var running = function running() {
        return _this4.stabilized === false && _this4.stabilizationIterations < _this4.targetIterations;
      };

      var sendProgress = function sendProgress() {
        _this4.body.emitter.emit('stabilizationProgress', {
          iterations: _this4.stabilizationIterations,
          total: _this4.targetIterations
        });
      };

      if (this._startStabilizing()) {
        sendProgress(); // Ensure that there is at least one start event.
      }

      var count = 0;
      while (running() && count < this.options.stabilization.updateInterval) {
        this.physicsTick();
        count++;
      }

      sendProgress();

      if (running()) {
        setTimeout(this._stabilizationBatch.bind(this), 0);
      } else {
        this._finalizeStabilization();
      }
    }

    /**
     * Wrap up the stabilization, fit and emit the events.
     * @private
     */

  }, {
    key: '_finalizeStabilization',
    value: function _finalizeStabilization() {
      this.body.emitter.emit('_allowRedraw');
      if (this.options.stabilization.fit === true) {
        this.body.emitter.emit('fit');
      }

      if (this.options.stabilization.onlyDynamicEdges === true) {
        this._restoreFrozenNodes();
      }

      this.body.emitter.emit('stabilizationIterationsDone');
      this.body.emitter.emit('_requestRedraw');

      if (this.stabilized === true) {
        this._emitStabilized();
      } else {
        this.startSimulation();
      }

      this.ready = true;
    }

    //---------------------------  DEBUGGING BELOW  ---------------------------//


    /**
     * Debug function that display arrows for the forces currently active in the network.
     *
     * Use this when debugging only.
     *
     * @param {CanvasRenderingContext2D} ctx
     * @private
     */

  }, {
    key: '_drawForces',
    value: function _drawForces(ctx) {
      for (var i = 0; i < this.physicsBody.physicsNodeIndices.length; i++) {
        var index = this.physicsBody.physicsNodeIndices[i];
        var node = this.body.nodes[index];
        var force = this.physicsBody.forces[index];
        var factor = 20;
        var colorFactor = 0.03;
        var forceSize = Math.sqrt(Math.pow(force.x, 2) + Math.pow(force.x, 2));

        var size = Math.min(Math.max(5, forceSize), 15);
        var arrowSize = 3 * size;

        var color = util.HSVToHex((180 - Math.min(1, Math.max(0, colorFactor * forceSize)) * 180) / 360, 1, 1);

        var point = {
          x: node.x + factor * force.x,
          y: node.y + factor * force.y
        };

        ctx.lineWidth = size;
        ctx.strokeStyle = color;
        ctx.beginPath();
        ctx.moveTo(node.x, node.y);
        ctx.lineTo(point.x, point.y);
        ctx.stroke();

        var angle = Math.atan2(force.y, force.x);
        ctx.fillStyle = color;
        EndPoints.draw(ctx, { type: 'arrow', point: point, angle: angle, length: arrowSize });
        ctx.fill();
      }
    }
  }]);
  return PhysicsEngine;
}();

exports['default'] = PhysicsEngine;

/***/ }),
/* 221 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * Repulsion Solver
 */
var RepulsionSolver = function () {
  /**
   * @param {Object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {Object} options
   */
  function RepulsionSolver(body, physicsBody, options) {
    (0, _classCallCheck3["default"])(this, RepulsionSolver);

    this.body = body;
    this.physicsBody = physicsBody;
    this.setOptions(options);
  }

  /**
   *
   * @param {Object} options
   */


  (0, _createClass3["default"])(RepulsionSolver, [{
    key: "setOptions",
    value: function setOptions(options) {
      this.options = options;
    }

    /**
     * Calculate the forces the nodes apply on each other based on a repulsion field.
     * This field is linearly approximated.
     *
     * @private
     */

  }, {
    key: "solve",
    value: function solve() {
      var dx, dy, distance, fx, fy, repulsingForce, node1, node2;

      var nodes = this.body.nodes;
      var nodeIndices = this.physicsBody.physicsNodeIndices;
      var forces = this.physicsBody.forces;

      // repulsing forces between nodes
      var nodeDistance = this.options.nodeDistance;

      // approximation constants
      var a = -2 / 3 / nodeDistance;
      var b = 4 / 3;

      // we loop from i over all but the last entree in the array
      // j loops from i+1 to the last. This way we do not double count any of the indices, nor i === j
      for (var i = 0; i < nodeIndices.length - 1; i++) {
        node1 = nodes[nodeIndices[i]];
        for (var j = i + 1; j < nodeIndices.length; j++) {
          node2 = nodes[nodeIndices[j]];

          dx = node2.x - node1.x;
          dy = node2.y - node1.y;
          distance = Math.sqrt(dx * dx + dy * dy);

          // same condition as BarnesHutSolver, making sure nodes are never 100% overlapping.
          if (distance === 0) {
            distance = 0.1 * Math.random();
            dx = distance;
          }

          if (distance < 2 * nodeDistance) {
            if (distance < 0.5 * nodeDistance) {
              repulsingForce = 1.0;
            } else {
              repulsingForce = a * distance + b; // linear approx of  1 / (1 + Math.exp((distance / nodeDistance - 1) * steepness))
            }
            repulsingForce = repulsingForce / distance;

            fx = dx * repulsingForce;
            fy = dy * repulsingForce;

            forces[node1.id].x -= fx;
            forces[node1.id].y -= fy;
            forces[node2.id].x += fx;
            forces[node2.id].y += fy;
          }
        }
      }
    }
  }]);
  return RepulsionSolver;
}();

exports["default"] = RepulsionSolver;

/***/ }),
/* 222 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * Hierarchical Repulsion Solver
 */
var HierarchicalRepulsionSolver = function () {
  /**
   * @param {Object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {Object} options
   */
  function HierarchicalRepulsionSolver(body, physicsBody, options) {
    (0, _classCallCheck3["default"])(this, HierarchicalRepulsionSolver);

    this.body = body;
    this.physicsBody = physicsBody;
    this.setOptions(options);
  }

  /**
   *
   * @param {Object} options
   */


  (0, _createClass3["default"])(HierarchicalRepulsionSolver, [{
    key: "setOptions",
    value: function setOptions(options) {
      this.options = options;
    }

    /**
     * Calculate the forces the nodes apply on each other based on a repulsion field.
     * This field is linearly approximated.
     *
     * @private
     */

  }, {
    key: "solve",
    value: function solve() {
      var dx, dy, distance, fx, fy, repulsingForce, node1, node2, i, j;

      var nodes = this.body.nodes;
      var nodeIndices = this.physicsBody.physicsNodeIndices;
      var forces = this.physicsBody.forces;

      // repulsing forces between nodes
      var nodeDistance = this.options.nodeDistance;

      // we loop from i over all but the last entree in the array
      // j loops from i+1 to the last. This way we do not double count any of the indices, nor i === j
      for (i = 0; i < nodeIndices.length - 1; i++) {
        node1 = nodes[nodeIndices[i]];
        for (j = i + 1; j < nodeIndices.length; j++) {
          node2 = nodes[nodeIndices[j]];

          // nodes only affect nodes on their level
          if (node1.level === node2.level) {
            dx = node2.x - node1.x;
            dy = node2.y - node1.y;
            distance = Math.sqrt(dx * dx + dy * dy);

            var steepness = 0.05;
            if (distance < nodeDistance) {
              repulsingForce = -Math.pow(steepness * distance, 2) + Math.pow(steepness * nodeDistance, 2);
            } else {
              repulsingForce = 0;
            }
            // normalize force with
            if (distance === 0) {
              distance = 0.01;
            } else {
              repulsingForce = repulsingForce / distance;
            }
            fx = dx * repulsingForce;
            fy = dy * repulsingForce;

            forces[node1.id].x -= fx;
            forces[node1.id].y -= fy;
            forces[node2.id].x += fx;
            forces[node2.id].y += fy;
          }
        }
      }
    }
  }]);
  return HierarchicalRepulsionSolver;
}();

exports["default"] = HierarchicalRepulsionSolver;

/***/ }),
/* 223 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * Spring Solver
 */
var SpringSolver = function () {
  /**
   * @param {Object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {Object} options
   */
  function SpringSolver(body, physicsBody, options) {
    (0, _classCallCheck3["default"])(this, SpringSolver);

    this.body = body;
    this.physicsBody = physicsBody;
    this.setOptions(options);
  }

  /**
   *
   * @param {Object} options
   */


  (0, _createClass3["default"])(SpringSolver, [{
    key: "setOptions",
    value: function setOptions(options) {
      this.options = options;
    }

    /**
     * This function calculates the springforces on the nodes, accounting for the support nodes.
     *
     * @private
     */

  }, {
    key: "solve",
    value: function solve() {
      var edgeLength = void 0,
          edge = void 0;
      var edgeIndices = this.physicsBody.physicsEdgeIndices;
      var edges = this.body.edges;
      var node1 = void 0,
          node2 = void 0,
          node3 = void 0;

      // forces caused by the edges, modelled as springs
      for (var i = 0; i < edgeIndices.length; i++) {
        edge = edges[edgeIndices[i]];
        if (edge.connected === true && edge.toId !== edge.fromId) {
          // only calculate forces if nodes are in the same sector
          if (this.body.nodes[edge.toId] !== undefined && this.body.nodes[edge.fromId] !== undefined) {
            if (edge.edgeType.via !== undefined) {
              edgeLength = edge.options.length === undefined ? this.options.springLength : edge.options.length;
              node1 = edge.to;
              node2 = edge.edgeType.via;
              node3 = edge.from;

              this._calculateSpringForce(node1, node2, 0.5 * edgeLength);
              this._calculateSpringForce(node2, node3, 0.5 * edgeLength);
            } else {
              // the * 1.5 is here so the edge looks as large as a smooth edge. It does not initially because the smooth edges use
              // the support nodes which exert a repulsive force on the to and from nodes, making the edge appear larger.
              edgeLength = edge.options.length === undefined ? this.options.springLength * 1.5 : edge.options.length;
              this._calculateSpringForce(edge.from, edge.to, edgeLength);
            }
          }
        }
      }
    }

    /**
     * This is the code actually performing the calculation for the function above.
     *
     * @param {Node} node1
     * @param {Node} node2
     * @param {number} edgeLength
     * @private
     */

  }, {
    key: "_calculateSpringForce",
    value: function _calculateSpringForce(node1, node2, edgeLength) {
      var dx = node1.x - node2.x;
      var dy = node1.y - node2.y;
      var distance = Math.max(Math.sqrt(dx * dx + dy * dy), 0.01);

      // the 1/distance is so the fx and fy can be calculated without sine or cosine.
      var springForce = this.options.springConstant * (edgeLength - distance) / distance;

      var fx = dx * springForce;
      var fy = dy * springForce;

      // handle the case where one node is not part of the physcis
      if (this.physicsBody.forces[node1.id] !== undefined) {
        this.physicsBody.forces[node1.id].x += fx;
        this.physicsBody.forces[node1.id].y += fy;
      }

      if (this.physicsBody.forces[node2.id] !== undefined) {
        this.physicsBody.forces[node2.id].x -= fx;
        this.physicsBody.forces[node2.id].y -= fy;
      }
    }
  }]);
  return SpringSolver;
}();

exports["default"] = SpringSolver;

/***/ }),
/* 224 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * Hierarchical Spring Solver
 */
var HierarchicalSpringSolver = function () {
  /**
   * @param {Object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {Object} options
   */
  function HierarchicalSpringSolver(body, physicsBody, options) {
    (0, _classCallCheck3["default"])(this, HierarchicalSpringSolver);

    this.body = body;
    this.physicsBody = physicsBody;
    this.setOptions(options);
  }

  /**
   *
   * @param {Object} options
   */


  (0, _createClass3["default"])(HierarchicalSpringSolver, [{
    key: "setOptions",
    value: function setOptions(options) {
      this.options = options;
    }

    /**
     * This function calculates the springforces on the nodes, accounting for the support nodes.
     *
     * @private
     */

  }, {
    key: "solve",
    value: function solve() {
      var edgeLength, edge;
      var dx, dy, fx, fy, springForce, distance;
      var edges = this.body.edges;
      var factor = 0.5;

      var edgeIndices = this.physicsBody.physicsEdgeIndices;
      var nodeIndices = this.physicsBody.physicsNodeIndices;
      var forces = this.physicsBody.forces;

      // initialize the spring force counters
      for (var i = 0; i < nodeIndices.length; i++) {
        var nodeId = nodeIndices[i];
        forces[nodeId].springFx = 0;
        forces[nodeId].springFy = 0;
      }

      // forces caused by the edges, modelled as springs
      for (var _i = 0; _i < edgeIndices.length; _i++) {
        edge = edges[edgeIndices[_i]];
        if (edge.connected === true) {
          edgeLength = edge.options.length === undefined ? this.options.springLength : edge.options.length;

          dx = edge.from.x - edge.to.x;
          dy = edge.from.y - edge.to.y;
          distance = Math.sqrt(dx * dx + dy * dy);
          distance = distance === 0 ? 0.01 : distance;

          // the 1/distance is so the fx and fy can be calculated without sine or cosine.
          springForce = this.options.springConstant * (edgeLength - distance) / distance;

          fx = dx * springForce;
          fy = dy * springForce;

          if (edge.to.level != edge.from.level) {
            if (forces[edge.toId] !== undefined) {
              forces[edge.toId].springFx -= fx;
              forces[edge.toId].springFy -= fy;
            }
            if (forces[edge.fromId] !== undefined) {
              forces[edge.fromId].springFx += fx;
              forces[edge.fromId].springFy += fy;
            }
          } else {
            if (forces[edge.toId] !== undefined) {
              forces[edge.toId].x -= factor * fx;
              forces[edge.toId].y -= factor * fy;
            }
            if (forces[edge.fromId] !== undefined) {
              forces[edge.fromId].x += factor * fx;
              forces[edge.fromId].y += factor * fy;
            }
          }
        }
      }

      // normalize spring forces
      springForce = 1;
      var springFx, springFy;
      for (var _i2 = 0; _i2 < nodeIndices.length; _i2++) {
        var _nodeId = nodeIndices[_i2];
        springFx = Math.min(springForce, Math.max(-springForce, forces[_nodeId].springFx));
        springFy = Math.min(springForce, Math.max(-springForce, forces[_nodeId].springFy));

        forces[_nodeId].x += springFx;
        forces[_nodeId].y += springFy;
      }

      // retain energy balance
      var totalFx = 0;
      var totalFy = 0;
      for (var _i3 = 0; _i3 < nodeIndices.length; _i3++) {
        var _nodeId2 = nodeIndices[_i3];
        totalFx += forces[_nodeId2].x;
        totalFy += forces[_nodeId2].y;
      }
      var correctionFx = totalFx / nodeIndices.length;
      var correctionFy = totalFy / nodeIndices.length;

      for (var _i4 = 0; _i4 < nodeIndices.length; _i4++) {
        var _nodeId3 = nodeIndices[_i4];
        forces[_nodeId3].x -= correctionFx;
        forces[_nodeId3].y -= correctionFy;
      }
    }
  }]);
  return HierarchicalSpringSolver;
}();

exports["default"] = HierarchicalSpringSolver;

/***/ }),
/* 225 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _BarnesHutSolver2 = __webpack_require__(120);

var _BarnesHutSolver3 = _interopRequireDefault(_BarnesHutSolver2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * @extends BarnesHutSolver
 */
var ForceAtlas2BasedRepulsionSolver = function (_BarnesHutSolver) {
  (0, _inherits3["default"])(ForceAtlas2BasedRepulsionSolver, _BarnesHutSolver);

  /**
   * @param {Object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {Object} options
   */
  function ForceAtlas2BasedRepulsionSolver(body, physicsBody, options) {
    (0, _classCallCheck3["default"])(this, ForceAtlas2BasedRepulsionSolver);
    return (0, _possibleConstructorReturn3["default"])(this, (ForceAtlas2BasedRepulsionSolver.__proto__ || (0, _getPrototypeOf2["default"])(ForceAtlas2BasedRepulsionSolver)).call(this, body, physicsBody, options));
  }

  /**
   * Calculate the forces based on the distance.
   *
   * @param {number} distance
   * @param {number} dx
   * @param {number} dy
   * @param {Node} node
   * @param {Object} parentBranch
   * @private
   */


  (0, _createClass3["default"])(ForceAtlas2BasedRepulsionSolver, [{
    key: "_calculateForces",
    value: function _calculateForces(distance, dx, dy, node, parentBranch) {
      if (distance === 0) {
        distance = 0.1 * Math.random();
        dx = distance;
      }

      if (this.overlapAvoidanceFactor < 1 && node.shape.radius) {
        distance = Math.max(0.1 + this.overlapAvoidanceFactor * node.shape.radius, distance - node.shape.radius);
      }

      var degree = node.edges.length + 1;
      // the dividing by the distance cubed instead of squared allows us to get the fx and fy components without sines and cosines
      // it is shorthand for gravityforce with distance squared and fx = dx/distance * gravityForce
      var gravityForce = this.options.gravitationalConstant * parentBranch.mass * node.options.mass * degree / Math.pow(distance, 2);
      var fx = dx * gravityForce;
      var fy = dy * gravityForce;

      this.physicsBody.forces[node.id].x += fx;
      this.physicsBody.forces[node.id].y += fy;
    }
  }]);
  return ForceAtlas2BasedRepulsionSolver;
}(_BarnesHutSolver3["default"]);

exports["default"] = ForceAtlas2BasedRepulsionSolver;

/***/ }),
/* 226 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _CentralGravitySolver2 = __webpack_require__(121);

var _CentralGravitySolver3 = _interopRequireDefault(_CentralGravitySolver2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * @extends CentralGravitySolver
 */
var ForceAtlas2BasedCentralGravitySolver = function (_CentralGravitySolver) {
  (0, _inherits3["default"])(ForceAtlas2BasedCentralGravitySolver, _CentralGravitySolver);

  /**
   * @param {Object} body
   * @param {{physicsNodeIndices: Array, physicsEdgeIndices: Array, forces: {}, velocities: {}}} physicsBody
   * @param {Object} options
   */
  function ForceAtlas2BasedCentralGravitySolver(body, physicsBody, options) {
    (0, _classCallCheck3["default"])(this, ForceAtlas2BasedCentralGravitySolver);
    return (0, _possibleConstructorReturn3["default"])(this, (ForceAtlas2BasedCentralGravitySolver.__proto__ || (0, _getPrototypeOf2["default"])(ForceAtlas2BasedCentralGravitySolver)).call(this, body, physicsBody, options));
  }

  /**
   * Calculate the forces based on the distance.
   *
   * @param {number} distance
   * @param {number} dx
   * @param {number} dy
   * @param {Object<Node.id, Node>} forces
   * @param {Node} node
   * @private
   */


  (0, _createClass3["default"])(ForceAtlas2BasedCentralGravitySolver, [{
    key: "_calculateForces",
    value: function _calculateForces(distance, dx, dy, forces, node) {
      if (distance > 0) {
        var degree = node.edges.length + 1;
        var gravityForce = this.options.centralGravity * degree * node.options.mass;
        forces[node.id].x = dx * gravityForce;
        forces[node.id].y = dy * gravityForce;
      }
    }
  }]);
  return ForceAtlas2BasedCentralGravitySolver;
}(_CentralGravitySolver3["default"]);

exports["default"] = ForceAtlas2BasedCentralGravitySolver;

/***/ }),
/* 227 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _keys = __webpack_require__(8);

var _keys2 = _interopRequireDefault(_keys);

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/* ===========================================================================

# TODO

- `edgeReplacedById` not cleaned up yet on cluster edge removal
- allowSingleNodeCluster could be a global option as well; currently needs to always
  be passed to clustering methods

----------------------------------------------

# State Model for Clustering

The total state for clustering is non-trivial. It is useful to have a model
available as to how it works. The following documents the relevant state items.


## Network State

The following `network`-members are relevant to clustering:

- `body.nodes`       - all nodes actively participating in the network
- `body.edges`       - same for edges
- `body.nodeIndices` - id's of nodes that are visible at a given moment
- `body.edgeIndices` - same for edges

This includes:

- helper nodes for dragging in `manipulation`
- helper nodes for edge type `dynamic`
- cluster nodes and edges
- there may be more than this.

A node/edge may be missing in the `Indices` member if:

- it is a helper node
- the node or edge state has option `hidden` set
- It is not visible due to clustering


## Clustering State

For the hashes, the id's of the nodes/edges are used as key.

Member `network.clustering` contains the following items:

- `clusteredNodes` - hash with values: { clusterId: <id of cluster>, node: <node instance>}
- `clusteredEdges` - hash with values: restore information for given edge


Due to nesting of clusters, these members can contain cluster nodes and edges as well.

The important thing to note here, is that the clustered nodes and edges also
appear in the members of the cluster nodes. For data update, it is therefore 
important to scan these lists as well as the cluster nodes.


### Cluster Node

A cluster node has the following extra fields:

- `isCluster : true` - indication that this is a cluster node
- `containedNodes`   - hash of nodes contained in this cluster
- `containedEdges`   - same for edges
- `edges`            - array of cluster edges for this node 


**NOTE:**

- `containedEdges` can also contain edges which are not clustered; e.g. an edge
   connecting two nodes in the same cluster.


### Cluster Edge

These are the items in the `edges` member of a clustered node. They have the
following relevant members:

- 'clusteringEdgeReplacingIds` - array of id's of edges replaced by this edge

Note that it's possible to nest clusters, so that `clusteringEdgeReplacingIds`
can contain edge id's of other clusters.


### Clustered Edge

This is any edge contained by a cluster edge. It gets the following additional
member:

- `edgeReplacedById` - id of the cluster edge in which current edge is clustered


   =========================================================================== */
var util = __webpack_require__(2);
var NetworkUtil = __webpack_require__(76)['default'];
var Cluster = __webpack_require__(228)['default'];
var Edge = __webpack_require__(74)['default']; // Only needed for check on type!
var Node = __webpack_require__(47)['default']; // Only needed for check on type!

/**
 * The clustering engine
 */

var ClusterEngine = function () {
  /**
   * @param {Object} body
   */
  function ClusterEngine(body) {
    var _this = this;

    (0, _classCallCheck3['default'])(this, ClusterEngine);

    this.body = body;
    this.clusteredNodes = {}; // key: node id, value: { clusterId: <id of cluster>, node: <node instance>}
    this.clusteredEdges = {}; // key: edge id, value: restore information for given edge

    this.options = {};
    this.defaultOptions = {};
    util.extend(this.options, this.defaultOptions);

    this.body.emitter.on('_resetData', function () {
      _this.clusteredNodes = {};_this.clusteredEdges = {};
    });
  }

  /**
  *
  * @param {number} hubsize
  * @param {Object} options
  */


  (0, _createClass3['default'])(ClusterEngine, [{
    key: 'clusterByHubsize',
    value: function clusterByHubsize(hubsize, options) {
      if (hubsize === undefined) {
        hubsize = this._getHubSize();
      } else if ((typeof hubsize === 'undefined' ? 'undefined' : (0, _typeof3['default'])(hubsize)) === "object") {
        options = this._checkOptions(hubsize);
        hubsize = this._getHubSize();
      }

      var nodesToCluster = [];
      for (var i = 0; i < this.body.nodeIndices.length; i++) {
        var node = this.body.nodes[this.body.nodeIndices[i]];
        if (node.edges.length >= hubsize) {
          nodesToCluster.push(node.id);
        }
      }

      for (var _i = 0; _i < nodesToCluster.length; _i++) {
        this.clusterByConnection(nodesToCluster[_i], options, true);
      }

      this.body.emitter.emit('_dataChanged');
    }

    /**
     * loop over all nodes, check if they adhere to the condition and cluster if needed.
     * @param {Object} options
     * @param {boolean} [refreshData=true]
     */

  }, {
    key: 'cluster',
    value: function cluster() {
      var _this2 = this;

      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      var refreshData = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

      if (options.joinCondition === undefined) {
        throw new Error("Cannot call clusterByNodeData without a joinCondition function in the options.");
      }

      // check if the options object is fine, append if needed
      options = this._checkOptions(options);

      var childNodesObj = {};
      var childEdgesObj = {};

      // collect the nodes that will be in the cluster
      util.forEach(this.body.nodes, function (node, nodeId) {
        var clonedOptions = NetworkUtil.cloneOptions(node);
        if (options.joinCondition(clonedOptions) === true) {
          childNodesObj[nodeId] = node;

          // collect the edges that will be in the cluster
          util.forEach(node.edges, function (edge) {
            if (_this2.clusteredEdges[edge.id] === undefined) {
              childEdgesObj[edge.id] = edge;
            }
          });
        }
      });

      this._cluster(childNodesObj, childEdgesObj, options, refreshData);
    }

    /**
     * Cluster all nodes in the network that have only X edges
     * @param {number} edgeCount
     * @param {Object} options
     * @param {boolean} [refreshData=true]
     */

  }, {
    key: 'clusterByEdgeCount',
    value: function clusterByEdgeCount(edgeCount, options) {
      var _this3 = this;

      var refreshData = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;

      options = this._checkOptions(options);
      var clusters = [];
      var usedNodes = {};
      var edge = void 0,
          edges = void 0,
          relevantEdgeCount = void 0;
      // collect the nodes that will be in the cluster

      var _loop = function _loop(i) {
        var childNodesObj = {};
        var childEdgesObj = {};
        var nodeId = _this3.body.nodeIndices[i];
        var node = _this3.body.nodes[nodeId];

        // if this node is already used in another cluster this session, we do not have to re-evaluate it.
        if (usedNodes[nodeId] === undefined) {
          relevantEdgeCount = 0;
          edges = [];
          for (var j = 0; j < node.edges.length; j++) {
            edge = node.edges[j];
            if (_this3.clusteredEdges[edge.id] === undefined) {
              if (edge.toId !== edge.fromId) {
                relevantEdgeCount++;
              }
              edges.push(edge);
            }
          }

          // this node qualifies, we collect its neighbours to start the clustering process.
          if (relevantEdgeCount === edgeCount) {
            checkJoinCondition = function checkJoinCondition(node) {
              if (options.joinCondition === undefined || options.joinCondition === null) {
                return true;
              }

              var clonedOptions = NetworkUtil.cloneOptions(node);
              return options.joinCondition(clonedOptions);
            };

            var gatheringSuccessful = true;
            for (var _j = 0; _j < edges.length; _j++) {
              edge = edges[_j];
              var childNodeId = _this3._getConnectedId(edge, nodeId);
              // add the nodes to the list by the join condition.
              if (checkJoinCondition(node)) {
                childEdgesObj[edge.id] = edge;
                childNodesObj[nodeId] = node;
                childNodesObj[childNodeId] = _this3.body.nodes[childNodeId];
                usedNodes[nodeId] = true;
              } else {
                // this node does not qualify after all.
                gatheringSuccessful = false;
                break;
              }
            }

            // add to the cluster queue
            if ((0, _keys2['default'])(childNodesObj).length > 0 && (0, _keys2['default'])(childEdgesObj).length > 0 && gatheringSuccessful === true) {
              /**
               * Search for cluster data that contains any of the node id's
               * @returns {Boolean} true if no joinCondition, otherwise return value of joinCondition
               */
              findClusterData = function findClusterData() {
                for (var n = 0; n < clusters.length; ++n) {
                  // Search for a cluster containing any of the node id's
                  for (var m in childNodesObj) {
                    if (clusters[n].nodes[m] !== undefined) {
                      return clusters[n];
                    }
                  }
                }

                return undefined;
              };

              // If any of the found nodes is part of a cluster found in this method,
              // add the current values to that cluster


              foundCluster = findClusterData();

              if (foundCluster !== undefined) {
                // Add nodes to found cluster if not present
                for (var m in childNodesObj) {
                  if (foundCluster.nodes[m] === undefined) {
                    foundCluster.nodes[m] = childNodesObj[m];
                  }
                }

                // Add edges to found cluster, if not present
                for (var _m in childEdgesObj) {
                  if (foundCluster.edges[_m] === undefined) {
                    foundCluster.edges[_m] = childEdgesObj[_m];
                  }
                }
              } else {
                // Create a new cluster group
                clusters.push({ nodes: childNodesObj, edges: childEdgesObj });
              }
            }
          }
        }
      };

      for (var i = 0; i < this.body.nodeIndices.length; i++) {
        var checkJoinCondition;
        var findClusterData;
        var foundCluster;

        _loop(i);
      }

      for (var i = 0; i < clusters.length; i++) {
        this._cluster(clusters[i].nodes, clusters[i].edges, options, false);
      }

      if (refreshData === true) {
        this.body.emitter.emit('_dataChanged');
      }
    }

    /**
     * Cluster all nodes in the network that have only 1 edge
     * @param {Object} options
     * @param {boolean} [refreshData=true]
     */

  }, {
    key: 'clusterOutliers',
    value: function clusterOutliers(options) {
      var refreshData = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

      this.clusterByEdgeCount(1, options, refreshData);
    }

    /**
     * Cluster all nodes in the network that have only 2 edge
     * @param {Object} options
     * @param {boolean} [refreshData=true]
     */

  }, {
    key: 'clusterBridges',
    value: function clusterBridges(options) {
      var refreshData = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

      this.clusterByEdgeCount(2, options, refreshData);
    }

    /**
    * suck all connected nodes of a node into the node.
    * @param {Node.id} nodeId
    * @param {Object} options
    * @param {boolean} [refreshData=true]
    */

  }, {
    key: 'clusterByConnection',
    value: function clusterByConnection(nodeId, options) {
      var refreshData = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;

      // kill conditions
      if (nodeId === undefined) {
        throw new Error("No nodeId supplied to clusterByConnection!");
      }
      if (this.body.nodes[nodeId] === undefined) {
        throw new Error("The nodeId given to clusterByConnection does not exist!");
      }

      var node = this.body.nodes[nodeId];
      options = this._checkOptions(options, node);
      if (options.clusterNodeProperties.x === undefined) {
        options.clusterNodeProperties.x = node.x;
      }
      if (options.clusterNodeProperties.y === undefined) {
        options.clusterNodeProperties.y = node.y;
      }
      if (options.clusterNodeProperties.fixed === undefined) {
        options.clusterNodeProperties.fixed = {};
        options.clusterNodeProperties.fixed.x = node.options.fixed.x;
        options.clusterNodeProperties.fixed.y = node.options.fixed.y;
      }

      var childNodesObj = {};
      var childEdgesObj = {};
      var parentNodeId = node.id;
      var parentClonedOptions = NetworkUtil.cloneOptions(node);
      childNodesObj[parentNodeId] = node;

      // collect the nodes that will be in the cluster
      for (var i = 0; i < node.edges.length; i++) {
        var edge = node.edges[i];
        if (this.clusteredEdges[edge.id] === undefined) {
          var childNodeId = this._getConnectedId(edge, parentNodeId);

          // if the child node is not in a cluster
          if (this.clusteredNodes[childNodeId] === undefined) {
            if (childNodeId !== parentNodeId) {
              if (options.joinCondition === undefined) {
                childEdgesObj[edge.id] = edge;
                childNodesObj[childNodeId] = this.body.nodes[childNodeId];
              } else {
                // clone the options and insert some additional parameters that could be interesting.
                var childClonedOptions = NetworkUtil.cloneOptions(this.body.nodes[childNodeId]);
                if (options.joinCondition(parentClonedOptions, childClonedOptions) === true) {
                  childEdgesObj[edge.id] = edge;
                  childNodesObj[childNodeId] = this.body.nodes[childNodeId];
                }
              }
            } else {
              // swallow the edge if it is self-referencing.
              childEdgesObj[edge.id] = edge;
            }
          }
        }
      }
      var childNodeIDs = (0, _keys2['default'])(childNodesObj).map(function (childNode) {
        return childNodesObj[childNode].id;
      });

      for (childNode in childNodesObj) {
        if (!childNodesObj.hasOwnProperty(childNode)) continue;

        var childNode = childNodesObj[childNode];
        for (var y = 0; y < childNode.edges.length; y++) {
          var childEdge = childNode.edges[y];
          if (childNodeIDs.indexOf(this._getConnectedId(childEdge, childNode.id)) > -1) {
            childEdgesObj[childEdge.id] = childEdge;
          }
        }
      }
      this._cluster(childNodesObj, childEdgesObj, options, refreshData);
    }

    /**
    * This function creates the edges that will be attached to the cluster
    * It looks for edges that are connected to the nodes from the "outside' of the cluster.
    *
    * @param {{Node.id: vis.Node}} childNodesObj
    * @param {{vis.Edge.id: vis.Edge}} childEdgesObj
    * @param {Object} clusterNodeProperties
    * @param {Object} clusterEdgeProperties
    * @private
    */

  }, {
    key: '_createClusterEdges',
    value: function _createClusterEdges(childNodesObj, childEdgesObj, clusterNodeProperties, clusterEdgeProperties) {
      var edge = void 0,
          childNodeId = void 0,
          childNode = void 0,
          toId = void 0,
          fromId = void 0,
          otherNodeId = void 0;

      // loop over all child nodes and their edges to find edges going out of the cluster
      // these edges will be replaced by clusterEdges.
      var childKeys = (0, _keys2['default'])(childNodesObj);
      var createEdges = [];
      for (var i = 0; i < childKeys.length; i++) {
        childNodeId = childKeys[i];
        childNode = childNodesObj[childNodeId];

        // construct new edges from the cluster to others
        for (var j = 0; j < childNode.edges.length; j++) {
          edge = childNode.edges[j];
          // we only handle edges that are visible to the system, not the disabled ones from the clustering process.
          if (this.clusteredEdges[edge.id] === undefined) {
            // self-referencing edges will be added to the "hidden" list
            if (edge.toId == edge.fromId) {
              childEdgesObj[edge.id] = edge;
            } else {
              // set up the from and to.
              if (edge.toId == childNodeId) {
                // this is a double equals because ints and strings can be interchanged here.
                toId = clusterNodeProperties.id;
                fromId = edge.fromId;
                otherNodeId = fromId;
              } else {
                toId = edge.toId;
                fromId = clusterNodeProperties.id;
                otherNodeId = toId;
              }
            }

            // Only edges from the cluster outwards are being replaced.
            if (childNodesObj[otherNodeId] === undefined) {
              createEdges.push({ edge: edge, fromId: fromId, toId: toId });
            }
          }
        }
      }

      //
      // Here we actually create the replacement edges.
      //
      // We could not do this in the loop above as the creation process
      // would add an edge to the edges array we are iterating over.
      //
      // NOTE: a clustered edge can have multiple base edges!
      //
      var newEdges = [];

      /**
       * Find a cluster edge which matches the given created edge.
       * @param {vis.Edge} createdEdge
       * @returns {vis.Edge}
       */
      var getNewEdge = function getNewEdge(createdEdge) {
        for (var _j2 = 0; _j2 < newEdges.length; _j2++) {
          var newEdge = newEdges[_j2];

          // We replace both to and from edges with a single cluster edge
          var matchToDirection = createdEdge.fromId === newEdge.fromId && createdEdge.toId === newEdge.toId;
          var matchFromDirection = createdEdge.fromId === newEdge.toId && createdEdge.toId === newEdge.fromId;

          if (matchToDirection || matchFromDirection) {
            return newEdge;
          }
        }

        return null;
      };

      for (var _j3 = 0; _j3 < createEdges.length; _j3++) {
        var createdEdge = createEdges[_j3];
        var _edge = createdEdge.edge;
        var newEdge = getNewEdge(createdEdge);

        if (newEdge === null) {
          // Create a clustered edge for this connection
          newEdge = this._createClusteredEdge(createdEdge.fromId, createdEdge.toId, _edge, clusterEdgeProperties);

          newEdges.push(newEdge);
        } else {
          newEdge.clusteringEdgeReplacingIds.push(_edge.id);
        }

        // also reference the new edge in the old edge
        this.body.edges[_edge.id].edgeReplacedById = newEdge.id;

        // hide the replaced edge
        this._backupEdgeOptions(_edge);
        _edge.setOptions({ physics: false });
      }
    }

    /**
    * This function checks the options that can be supplied to the different cluster functions
    * for certain fields and inserts defaults if needed
    * @param {Object} options
    * @returns {*}
    * @private
    */

  }, {
    key: '_checkOptions',
    value: function _checkOptions() {
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

      if (options.clusterEdgeProperties === undefined) {
        options.clusterEdgeProperties = {};
      }
      if (options.clusterNodeProperties === undefined) {
        options.clusterNodeProperties = {};
      }

      return options;
    }

    /**
    *
    * @param {Object}    childNodesObj         | object with node objects, id as keys, same as childNodes except it also contains a source node
    * @param {Object}    childEdgesObj         | object with edge objects, id as keys
    * @param {Array}     options               | object with {clusterNodeProperties, clusterEdgeProperties, processProperties}
    * @param {boolean}   refreshData | when true, do not wrap up
    * @private
    */

  }, {
    key: '_cluster',
    value: function _cluster(childNodesObj, childEdgesObj, options) {
      var refreshData = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : true;

      // Remove nodes which are already clustered
      var tmpNodesToRemove = [];
      for (var _nodeId in childNodesObj) {
        if (childNodesObj.hasOwnProperty(_nodeId)) {
          if (this.clusteredNodes[_nodeId] !== undefined) {
            tmpNodesToRemove.push(_nodeId);
          }
        }
      }

      for (var n = 0; n < tmpNodesToRemove.length; ++n) {
        delete childNodesObj[tmpNodesToRemove[n]];
      }

      // kill condition: no nodes don't bother
      if ((0, _keys2['default'])(childNodesObj).length == 0) {
        return;
      }

      // allow clusters of 1 if options allow
      if ((0, _keys2['default'])(childNodesObj).length == 1 && options.clusterNodeProperties.allowSingleNodeCluster != true) {
        return;
      }

      var clusterNodeProperties = util.deepExtend({}, options.clusterNodeProperties);

      // construct the clusterNodeProperties
      if (options.processProperties !== undefined) {
        // get the childNode options
        var childNodesOptions = [];
        for (var _nodeId2 in childNodesObj) {
          if (childNodesObj.hasOwnProperty(_nodeId2)) {
            var clonedOptions = NetworkUtil.cloneOptions(childNodesObj[_nodeId2]);
            childNodesOptions.push(clonedOptions);
          }
        }

        // get cluster properties based on childNodes
        var childEdgesOptions = [];
        for (var edgeId in childEdgesObj) {
          if (childEdgesObj.hasOwnProperty(edgeId)) {
            // these cluster edges will be removed on creation of the cluster.
            if (edgeId.substr(0, 12) !== "clusterEdge:") {
              var _clonedOptions = NetworkUtil.cloneOptions(childEdgesObj[edgeId], 'edge');
              childEdgesOptions.push(_clonedOptions);
            }
          }
        }

        clusterNodeProperties = options.processProperties(clusterNodeProperties, childNodesOptions, childEdgesOptions);
        if (!clusterNodeProperties) {
          throw new Error("The processProperties function does not return properties!");
        }
      }

      // check if we have an unique id;
      if (clusterNodeProperties.id === undefined) {
        clusterNodeProperties.id = 'cluster:' + util.randomUUID();
      }
      var clusterId = clusterNodeProperties.id;

      if (clusterNodeProperties.label === undefined) {
        clusterNodeProperties.label = 'cluster';
      }

      // give the clusterNode a position if it does not have one.
      var pos = undefined;
      if (clusterNodeProperties.x === undefined) {
        pos = this._getClusterPosition(childNodesObj);
        clusterNodeProperties.x = pos.x;
      }
      if (clusterNodeProperties.y === undefined) {
        if (pos === undefined) {
          pos = this._getClusterPosition(childNodesObj);
        }
        clusterNodeProperties.y = pos.y;
      }

      // force the ID to remain the same
      clusterNodeProperties.id = clusterId;

      // create the cluster Node
      // Note that allowSingleNodeCluster, if present, is stored in the options as well
      var clusterNode = this.body.functions.createNode(clusterNodeProperties, Cluster);
      clusterNode.containedNodes = childNodesObj;
      clusterNode.containedEdges = childEdgesObj;
      // cache a copy from the cluster edge properties if we have to reconnect others later on
      clusterNode.clusterEdgeProperties = options.clusterEdgeProperties;

      // finally put the cluster node into global
      this.body.nodes[clusterNodeProperties.id] = clusterNode;

      this._clusterEdges(childNodesObj, childEdgesObj, clusterNodeProperties, options.clusterEdgeProperties);

      // set ID to undefined so no duplicates arise
      clusterNodeProperties.id = undefined;

      // wrap up
      if (refreshData === true) {
        this.body.emitter.emit('_dataChanged');
      }
    }

    /**
     *
     * @param {Edge} edge
     * @private
     */

  }, {
    key: '_backupEdgeOptions',
    value: function _backupEdgeOptions(edge) {
      if (this.clusteredEdges[edge.id] === undefined) {
        this.clusteredEdges[edge.id] = { physics: edge.options.physics };
      }
    }

    /**
     *
     * @param {Edge} edge
     * @private
     */

  }, {
    key: '_restoreEdge',
    value: function _restoreEdge(edge) {
      var originalOptions = this.clusteredEdges[edge.id];
      if (originalOptions !== undefined) {
        edge.setOptions({ physics: originalOptions.physics });
        delete this.clusteredEdges[edge.id];
      }
    }

    /**
    * Check if a node is a cluster.
    * @param {Node.id} nodeId
    * @returns {*}
    */

  }, {
    key: 'isCluster',
    value: function isCluster(nodeId) {
      if (this.body.nodes[nodeId] !== undefined) {
        return this.body.nodes[nodeId].isCluster === true;
      } else {
        console.log("Node does not exist.");
        return false;
      }
    }

    /**
    * get the position of the cluster node based on what's inside
    * @param {object} childNodesObj    | object with node objects, id as keys
    * @returns {{x: number, y: number}}
    * @private
    */

  }, {
    key: '_getClusterPosition',
    value: function _getClusterPosition(childNodesObj) {
      var childKeys = (0, _keys2['default'])(childNodesObj);
      var minX = childNodesObj[childKeys[0]].x;
      var maxX = childNodesObj[childKeys[0]].x;
      var minY = childNodesObj[childKeys[0]].y;
      var maxY = childNodesObj[childKeys[0]].y;
      var node = void 0;
      for (var i = 1; i < childKeys.length; i++) {
        node = childNodesObj[childKeys[i]];
        minX = node.x < minX ? node.x : minX;
        maxX = node.x > maxX ? node.x : maxX;
        minY = node.y < minY ? node.y : minY;
        maxY = node.y > maxY ? node.y : maxY;
      }

      return { x: 0.5 * (minX + maxX), y: 0.5 * (minY + maxY) };
    }

    /**
     * Open a cluster by calling this function.
     * @param {vis.Edge.id}  clusterNodeId | the ID of the cluster node
     * @param {Object} options
     * @param {boolean} refreshData | wrap up afterwards if not true
     */

  }, {
    key: 'openCluster',
    value: function openCluster(clusterNodeId, options) {
      var refreshData = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;

      // kill conditions
      if (clusterNodeId === undefined) {
        throw new Error("No clusterNodeId supplied to openCluster.");
      }

      var clusterNode = this.body.nodes[clusterNodeId];

      if (clusterNode === undefined) {
        throw new Error("The clusterNodeId supplied to openCluster does not exist.");
      }
      if (clusterNode.isCluster !== true || clusterNode.containedNodes === undefined || clusterNode.containedEdges === undefined) {
        throw new Error("The node:" + clusterNodeId + " is not a valid cluster.");
      }

      // Check if current cluster is clustered itself
      var stack = this.findNode(clusterNodeId);
      var parentIndex = stack.indexOf(clusterNodeId) - 1;
      if (parentIndex >= 0) {
        // Current cluster is clustered; transfer contained nodes and edges to parent
        var parentClusterNodeId = stack[parentIndex];
        var parentClusterNode = this.body.nodes[parentClusterNodeId];

        // clustering.clusteredNodes and clustering.clusteredEdges remain unchanged
        parentClusterNode._openChildCluster(clusterNodeId);

        // All components of child cluster node have been transferred. It can die now.
        delete this.body.nodes[clusterNodeId];
        if (refreshData === true) {
          this.body.emitter.emit('_dataChanged');
        }

        return;
      }

      // main body 
      var containedNodes = clusterNode.containedNodes;
      var containedEdges = clusterNode.containedEdges;

      // allow the user to position the nodes after release.
      if (options !== undefined && options.releaseFunction !== undefined && typeof options.releaseFunction === 'function') {
        var positions = {};
        var clusterPosition = { x: clusterNode.x, y: clusterNode.y };
        for (var _nodeId3 in containedNodes) {
          if (containedNodes.hasOwnProperty(_nodeId3)) {
            var containedNode = this.body.nodes[_nodeId3];
            positions[_nodeId3] = { x: containedNode.x, y: containedNode.y };
          }
        }
        var newPositions = options.releaseFunction(clusterPosition, positions);

        for (var _nodeId4 in containedNodes) {
          if (containedNodes.hasOwnProperty(_nodeId4)) {
            var _containedNode = this.body.nodes[_nodeId4];
            if (newPositions[_nodeId4] !== undefined) {
              _containedNode.x = newPositions[_nodeId4].x === undefined ? clusterNode.x : newPositions[_nodeId4].x;
              _containedNode.y = newPositions[_nodeId4].y === undefined ? clusterNode.y : newPositions[_nodeId4].y;
            }
          }
        }
      } else {
        // copy the position from the cluster
        util.forEach(containedNodes, function (containedNode) {
          // inherit position
          if (containedNode.options.fixed.x === false) {
            containedNode.x = clusterNode.x;
          }
          if (containedNode.options.fixed.y === false) {
            containedNode.y = clusterNode.y;
          }
        });
      }

      // release nodes
      for (var _nodeId5 in containedNodes) {
        if (containedNodes.hasOwnProperty(_nodeId5)) {
          var _containedNode2 = this.body.nodes[_nodeId5];

          // inherit speed
          _containedNode2.vx = clusterNode.vx;
          _containedNode2.vy = clusterNode.vy;

          _containedNode2.setOptions({ physics: true });

          delete this.clusteredNodes[_nodeId5];
        }
      }

      // copy the clusterNode edges because we cannot iterate over an object that we add or remove from.
      var edgesToBeDeleted = [];
      for (var i = 0; i < clusterNode.edges.length; i++) {
        edgesToBeDeleted.push(clusterNode.edges[i]);
      }

      // actually handling the deleting.
      for (var _i2 = 0; _i2 < edgesToBeDeleted.length; _i2++) {
        var edge = edgesToBeDeleted[_i2];
        var otherNodeId = this._getConnectedId(edge, clusterNodeId);
        var otherNode = this.clusteredNodes[otherNodeId];

        for (var j = 0; j < edge.clusteringEdgeReplacingIds.length; j++) {
          var transferId = edge.clusteringEdgeReplacingIds[j];
          var transferEdge = this.body.edges[transferId];
          if (transferEdge === undefined) continue;

          // if the other node is in another cluster, we transfer ownership of this edge to the other cluster
          if (otherNode !== undefined) {
            // transfer ownership:
            var otherCluster = this.body.nodes[otherNode.clusterId];
            otherCluster.containedEdges[transferEdge.id] = transferEdge;

            // delete local reference
            delete containedEdges[transferEdge.id];

            // get to and from
            var fromId = transferEdge.fromId;
            var toId = transferEdge.toId;
            if (transferEdge.toId == otherNodeId) {
              toId = otherNode.clusterId;
            } else {
              fromId = otherNode.clusterId;
            }

            // create new cluster edge from the otherCluster
            this._createClusteredEdge(fromId, toId, transferEdge, otherCluster.clusterEdgeProperties, { hidden: false, physics: true });
          } else {
            this._restoreEdge(transferEdge);
          }
        }

        edge.remove();
      }

      // handle the releasing of the edges
      for (var edgeId in containedEdges) {
        if (containedEdges.hasOwnProperty(edgeId)) {
          this._restoreEdge(containedEdges[edgeId]);
        }
      }

      // remove clusterNode
      delete this.body.nodes[clusterNodeId];

      if (refreshData === true) {
        this.body.emitter.emit('_dataChanged');
      }
    }

    /**
     *
     * @param {Cluster.id} clusterId
     * @returns {Array.<Node.id>}
     */

  }, {
    key: 'getNodesInCluster',
    value: function getNodesInCluster(clusterId) {
      var nodesArray = [];
      if (this.isCluster(clusterId) === true) {
        var containedNodes = this.body.nodes[clusterId].containedNodes;
        for (var _nodeId6 in containedNodes) {
          if (containedNodes.hasOwnProperty(_nodeId6)) {
            nodesArray.push(this.body.nodes[_nodeId6].id);
          }
        }
      }

      return nodesArray;
    }

    /**
    * Get the stack clusterId's that a certain node resides in. cluster A -> cluster B -> cluster C -> node
    *
    * If a node can't be found in the chain, return an empty array.
    *
    * @param {string|number} nodeId
    * @returns {Array}
    */

  }, {
    key: 'findNode',
    value: function findNode(nodeId) {
      var stack = [];
      var max = 100;
      var counter = 0;
      var node = void 0;

      while (this.clusteredNodes[nodeId] !== undefined && counter < max) {
        node = this.body.nodes[nodeId];
        if (node === undefined) return [];
        stack.push(node.id);

        nodeId = this.clusteredNodes[nodeId].clusterId;
        counter++;
      }

      node = this.body.nodes[nodeId];
      if (node === undefined) return [];
      stack.push(node.id);

      stack.reverse();
      return stack;
    }

    /**
    * Using a clustered nodeId, update with the new options
    * @param {vis.Edge.id} clusteredNodeId
    * @param {object} newOptions
    */

  }, {
    key: 'updateClusteredNode',
    value: function updateClusteredNode(clusteredNodeId, newOptions) {
      if (clusteredNodeId === undefined) {
        throw new Error("No clusteredNodeId supplied to updateClusteredNode.");
      }
      if (newOptions === undefined) {
        throw new Error("No newOptions supplied to updateClusteredNode.");
      }
      if (this.body.nodes[clusteredNodeId] === undefined) {
        throw new Error("The clusteredNodeId supplied to updateClusteredNode does not exist.");
      }

      this.body.nodes[clusteredNodeId].setOptions(newOptions);
      this.body.emitter.emit('_dataChanged');
    }

    /**
    * Using a base edgeId, update all related clustered edges with the new options
    * @param {vis.Edge.id} startEdgeId
    * @param {object} newOptions
    */

  }, {
    key: 'updateEdge',
    value: function updateEdge(startEdgeId, newOptions) {
      if (startEdgeId === undefined) {
        throw new Error("No startEdgeId supplied to updateEdge.");
      }
      if (newOptions === undefined) {
        throw new Error("No newOptions supplied to updateEdge.");
      }
      if (this.body.edges[startEdgeId] === undefined) {
        throw new Error("The startEdgeId supplied to updateEdge does not exist.");
      }

      var allEdgeIds = this.getClusteredEdges(startEdgeId);
      for (var i = 0; i < allEdgeIds.length; i++) {
        var edge = this.body.edges[allEdgeIds[i]];
        edge.setOptions(newOptions);
      }
      this.body.emitter.emit('_dataChanged');
    }

    /**
    * Get a stack of clusterEdgeId's (+base edgeid) that a base edge is the same as. cluster edge C -> cluster edge B -> cluster edge A -> base edge(edgeId)
    * @param {vis.Edge.id} edgeId
    * @returns {Array.<vis.Edge.id>}
    */

  }, {
    key: 'getClusteredEdges',
    value: function getClusteredEdges(edgeId) {
      var stack = [];
      var max = 100;
      var counter = 0;

      while (edgeId !== undefined && this.body.edges[edgeId] !== undefined && counter < max) {
        stack.push(this.body.edges[edgeId].id);
        edgeId = this.body.edges[edgeId].edgeReplacedById;
        counter++;
      }
      stack.reverse();
      return stack;
    }

    /**
    * Get the base edge id of clusterEdgeId. cluster edge (clusteredEdgeId) -> cluster edge B -> cluster edge C -> base edge
    * @param {vis.Edge.id} clusteredEdgeId
    * @returns {vis.Edge.id} baseEdgeId
    *
    * TODO: deprecate in 5.0.0. Method getBaseEdges() is the correct one to use.
    */

  }, {
    key: 'getBaseEdge',
    value: function getBaseEdge(clusteredEdgeId) {
      // Just kludge this by returning the first base edge id found
      return this.getBaseEdges(clusteredEdgeId)[0];
    }

    /**
     * Get all regular edges for this clustered edge id.
     *
     * @param {vis.Edge.id} clusteredEdgeId
     * @returns {Array.<vis.Edge.id>} all baseEdgeId's under this clustered edge
     */

  }, {
    key: 'getBaseEdges',
    value: function getBaseEdges(clusteredEdgeId) {
      var IdsToHandle = [clusteredEdgeId];
      var doneIds = [];
      var foundIds = [];
      var max = 100;
      var counter = 0;

      while (IdsToHandle.length > 0 && counter < max) {
        var nextId = IdsToHandle.pop();
        if (nextId === undefined) continue; // Paranoia here and onwards
        var nextEdge = this.body.edges[nextId];
        if (nextEdge === undefined) continue;
        counter++;

        var replacingIds = nextEdge.clusteringEdgeReplacingIds;
        if (replacingIds === undefined) {
          // nextId is a base id
          foundIds.push(nextId);
        } else {
          // Another cluster edge, unravel this one as well
          for (var i = 0; i < replacingIds.length; ++i) {
            var replacingId = replacingIds[i];

            // Don't add if already handled
            // TODO: never triggers; find a test-case which does
            if (IdsToHandle.indexOf(replacingIds) !== -1 || doneIds.indexOf(replacingIds) !== -1) {
              continue;
            }

            IdsToHandle.push(replacingId);
          }
        }

        doneIds.push(nextId);
      }

      return foundIds;
    }

    /**
    * Get the Id the node is connected to
    * @param {vis.Edge} edge
    * @param {Node.id} nodeId
    * @returns {*}
    * @private
    */

  }, {
    key: '_getConnectedId',
    value: function _getConnectedId(edge, nodeId) {
      if (edge.toId != nodeId) {
        return edge.toId;
      } else if (edge.fromId != nodeId) {
        return edge.fromId;
      } else {
        return edge.fromId;
      }
    }

    /**
    * We determine how many connections denote an important hub.
    * We take the mean + 2*std as the important hub size. (Assuming a normal distribution of data, ~2.2%)
    *
    * @returns {number}
    * @private
    */

  }, {
    key: '_getHubSize',
    value: function _getHubSize() {
      var average = 0;
      var averageSquared = 0;
      var hubCounter = 0;
      var largestHub = 0;

      for (var i = 0; i < this.body.nodeIndices.length; i++) {
        var _node = this.body.nodes[this.body.nodeIndices[i]];
        if (_node.edges.length > largestHub) {
          largestHub = _node.edges.length;
        }
        average += _node.edges.length;
        averageSquared += Math.pow(_node.edges.length, 2);
        hubCounter += 1;
      }
      average = average / hubCounter;
      averageSquared = averageSquared / hubCounter;

      var variance = averageSquared - Math.pow(average, 2);
      var standardDeviation = Math.sqrt(variance);

      var hubThreshold = Math.floor(average + 2 * standardDeviation);

      // always have at least one to cluster
      if (hubThreshold > largestHub) {
        hubThreshold = largestHub;
      }

      return hubThreshold;
    }

    /**
     * Create an edge for the cluster representation.
     *
     * @param {Node.id} fromId
     * @param {Node.id} toId
     * @param {vis.Edge} baseEdge
     * @param {Object} clusterEdgeProperties
     * @param {Object} extraOptions
     * @returns {Edge} newly created clustered edge
     * @private
     */

  }, {
    key: '_createClusteredEdge',
    value: function _createClusteredEdge(fromId, toId, baseEdge, clusterEdgeProperties, extraOptions) {
      // copy the options of the edge we will replace
      var clonedOptions = NetworkUtil.cloneOptions(baseEdge, 'edge');
      // make sure the properties of clusterEdges are superimposed on it
      util.deepExtend(clonedOptions, clusterEdgeProperties);

      // set up the edge
      clonedOptions.from = fromId;
      clonedOptions.to = toId;
      clonedOptions.id = 'clusterEdge:' + util.randomUUID();

      // apply the edge specific options to it if specified
      if (extraOptions !== undefined) {
        util.deepExtend(clonedOptions, extraOptions);
      }

      var newEdge = this.body.functions.createEdge(clonedOptions);
      newEdge.clusteringEdgeReplacingIds = [baseEdge.id];
      newEdge.connect();

      // Register the new edge
      this.body.edges[newEdge.id] = newEdge;

      return newEdge;
    }

    /**
     * Add the passed child nodes and edges to the given cluster node.
     *
     * @param {Object|Node} childNodes  hash of nodes or single node to add in cluster
     * @param {Object|Edge} childEdges  hash of edges or single edge to take into account when clustering
     * @param {Node} clusterNode  cluster node to add nodes and edges to
     * @param {Object} [clusterEdgeProperties]
     * @private
     */

  }, {
    key: '_clusterEdges',
    value: function _clusterEdges(childNodes, childEdges, clusterNode, clusterEdgeProperties) {
      if (childEdges instanceof Edge) {
        var edge = childEdges;
        var obj = {};
        obj[edge.id] = edge;
        childEdges = obj;
      }

      if (childNodes instanceof Node) {
        var _node2 = childNodes;
        var _obj = {};
        _obj[_node2.id] = _node2;
        childNodes = _obj;
      }

      if (clusterNode === undefined || clusterNode === null) {
        throw new Error("_clusterEdges: parameter clusterNode required");
      }

      if (clusterEdgeProperties === undefined) {
        // Take the required properties from the cluster node
        clusterEdgeProperties = clusterNode.clusterEdgeProperties;
      }

      // create the new edges that will connect to the cluster.
      // All self-referencing edges will be added to childEdges here.
      this._createClusterEdges(childNodes, childEdges, clusterNode, clusterEdgeProperties);

      // disable the childEdges
      for (var edgeId in childEdges) {
        if (childEdges.hasOwnProperty(edgeId)) {
          if (this.body.edges[edgeId] !== undefined) {
            var _edge2 = this.body.edges[edgeId];
            // cache the options before changing
            this._backupEdgeOptions(_edge2);
            // disable physics and hide the edge
            _edge2.setOptions({ physics: false });
          }
        }
      }

      // disable the childNodes
      for (var _nodeId7 in childNodes) {
        if (childNodes.hasOwnProperty(_nodeId7)) {
          this.clusteredNodes[_nodeId7] = { clusterId: clusterNode.id, node: this.body.nodes[_nodeId7] };
          this.body.nodes[_nodeId7].setOptions({ physics: false });
        }
      }
    }

    /**
     * Determine in which cluster given nodeId resides.
     *
     * If not in cluster, return undefined.
     *
     * NOTE: If you know a cleaner way to do this, please enlighten me (wimrijnders).
     *
     * @param {Node.id} nodeId
     * @returns {Node|undefined} Node instance for cluster, if present
     * @private
     */

  }, {
    key: '_getClusterNodeForNode',
    value: function _getClusterNodeForNode(nodeId) {
      if (nodeId === undefined) return undefined;
      var clusteredNode = this.clusteredNodes[nodeId];

      // NOTE: If no cluster info found, it should actually be an error
      if (clusteredNode === undefined) return undefined;
      var clusterId = clusteredNode.clusterId;
      if (clusterId === undefined) return undefined;

      return this.body.nodes[clusterId];
    }

    /**
     * Internal helper function for conditionally removing items in array
     *
     * Done like this because Array.filter() is not fully supported by all IE's.
     *
     * @param {Array} arr
     * @param {function} callback
     * @returns {Array}
     * @private
     */

  }, {
    key: '_filter',
    value: function _filter(arr, callback) {
      var ret = [];

      util.forEach(arr, function (item) {
        if (callback(item)) {
          ret.push(item);
        }
      });

      return ret;
    }

    /**
     * Scan all edges for changes in clustering and adjust this if necessary.
     *
     * Call this (internally) after there has been a change in node or edge data.
     *
     * Pre: States of this.body.nodes and this.body.edges consistent
     * Pre: this.clusteredNodes and this.clusteredEdge consistent with containedNodes and containedEdges
     *      of cluster nodes.
     */

  }, {
    key: '_updateState',
    value: function _updateState() {
      var _this4 = this;

      var nodeId = void 0;
      var deletedNodeIds = [];
      var deletedEdgeIds = [];

      /**
       * Utility function to iterate over clustering nodes only
       *
       * @param {Function} callback  function to call for each cluster node
       */
      var eachClusterNode = function eachClusterNode(callback) {
        util.forEach(_this4.body.nodes, function (node) {
          if (node.isCluster === true) {
            callback(node);
          }
        });
      };

      //
      // Remove deleted regular nodes from clustering
      //

      // Determine the deleted nodes
      for (nodeId in this.clusteredNodes) {
        if (!this.clusteredNodes.hasOwnProperty(nodeId)) continue;
        var _node3 = this.body.nodes[nodeId];

        if (_node3 === undefined) {
          deletedNodeIds.push(nodeId);
        }
      }

      // Remove nodes from cluster nodes
      eachClusterNode(function (clusterNode) {
        for (var n = 0; n < deletedNodeIds.length; n++) {
          delete clusterNode.containedNodes[deletedNodeIds[n]];
        }
      });

      // Remove nodes from cluster list
      for (var n = 0; n < deletedNodeIds.length; n++) {
        delete this.clusteredNodes[deletedNodeIds[n]];
      }

      //
      // Remove deleted edges from clustering
      //

      // Add the deleted clustered edges to the list
      util.forEach(this.clusteredEdges, function (edgeId) {
        var edge = _this4.body.edges[edgeId];
        if (edge === undefined || !edge.endPointsValid()) {
          deletedEdgeIds.push(edgeId);
        }
      });

      // Cluster nodes can also contain edges which are not clustered, 
      // i.e. nodes 1-2 within cluster with an edge in between.
      // So the cluster nodes also need to be scanned for invalid edges
      eachClusterNode(function (clusterNode) {
        util.forEach(clusterNode.containedEdges, function (edge, edgeId) {
          if (!edge.endPointsValid() && deletedEdgeIds.indexOf(edgeId) === -1) {
            deletedEdgeIds.push(edgeId);
          }
        });
      });

      // Also scan for cluster edges which need to be removed in the active list.
      // Regular edges have been removed beforehand, so this only picks up the cluster edges.
      util.forEach(this.body.edges, function (edge, edgeId) {
        // Explicitly scan the contained edges for validity
        var isValid = true;
        var replacedIds = edge.clusteringEdgeReplacingIds;
        if (replacedIds !== undefined) {
          var numValid = 0;

          util.forEach(replacedIds, function (containedEdgeId) {
            var containedEdge = _this4.body.edges[containedEdgeId];

            if (containedEdge !== undefined && containedEdge.endPointsValid()) {
              numValid += 1;
            }
          });

          isValid = numValid > 0;
        }

        if (!edge.endPointsValid() || !isValid) {
          deletedEdgeIds.push(edgeId);
        }
      });

      // Remove edges from cluster nodes
      eachClusterNode(function (clusterNode) {
        util.forEach(deletedEdgeIds, function (deletedEdgeId) {
          delete clusterNode.containedEdges[deletedEdgeId];

          util.forEach(clusterNode.edges, function (edge, m) {
            if (edge.id === deletedEdgeId) {
              clusterNode.edges[m] = null; // Don't want to directly delete here, because in the loop
              return;
            }

            edge.clusteringEdgeReplacingIds = _this4._filter(edge.clusteringEdgeReplacingIds, function (id) {
              return deletedEdgeIds.indexOf(id) === -1;
            });
          });

          // Clean up the nulls
          clusterNode.edges = _this4._filter(clusterNode.edges, function (item) {
            return item !== null;
          });
        });
      });

      // Remove from cluster list
      util.forEach(deletedEdgeIds, function (edgeId) {
        delete _this4.clusteredEdges[edgeId];
      });

      // Remove cluster edges from active list (this.body.edges).
      // deletedEdgeIds still contains id of regular edges, but these should all
      // be gone when you reach here.
      util.forEach(deletedEdgeIds, function (edgeId) {
        delete _this4.body.edges[edgeId];
      });

      //
      // Check changed cluster state of edges
      //

      // Iterating over keys here, because edges may be removed in the loop
      var ids = (0, _keys2['default'])(this.body.edges);
      util.forEach(ids, function (edgeId) {
        var edge = _this4.body.edges[edgeId];

        var shouldBeClustered = _this4._isClusteredNode(edge.fromId) || _this4._isClusteredNode(edge.toId);
        if (shouldBeClustered === _this4._isClusteredEdge(edge.id)) {
          return; // all is well
        }

        if (shouldBeClustered) {
          // add edge to clustering
          var clusterFrom = _this4._getClusterNodeForNode(edge.fromId);
          if (clusterFrom !== undefined) {
            _this4._clusterEdges(_this4.body.nodes[edge.fromId], edge, clusterFrom);
          }

          var clusterTo = _this4._getClusterNodeForNode(edge.toId);
          if (clusterTo !== undefined) {
            _this4._clusterEdges(_this4.body.nodes[edge.toId], edge, clusterTo);
          }

          // TODO: check that it works for both edges clustered
          //       (This might be paranoia)
        } else {
          // This should not be happening, the state should
          // be properly updated at this point.
          // 
          // If it *is* reached during normal operation, then we have to implement
          // undo clustering for this edge here.
          throw new Error('remove edge from clustering not implemented!');
        }
      });

      // Clusters may be nested to any level. Keep on opening until nothing to open
      var changed = false;
      var continueLoop = true;

      var _loop2 = function _loop2() {
        var clustersToOpen = [];

        // Determine the id's of clusters that need opening
        eachClusterNode(function (clusterNode) {
          var numNodes = (0, _keys2['default'])(clusterNode.containedNodes).length;
          var allowSingle = clusterNode.options.allowSingleNodeCluster === true;
          if (allowSingle && numNodes < 1 || !allowSingle && numNodes < 2) {
            clustersToOpen.push(clusterNode.id);
          }
        });

        // Open them
        for (var _n = 0; _n < clustersToOpen.length; ++_n) {
          _this4.openCluster(clustersToOpen[_n], {}, false /* Don't refresh, we're in an refresh/update already */);
        }

        continueLoop = clustersToOpen.length > 0;
        changed = changed || continueLoop;
      };

      while (continueLoop) {
        _loop2();
      }

      if (changed) {
        this._updateState(); // Redo this method (recursion possible! should be safe)
      }
    }

    /**
     * Determine if node with given id is part of a cluster.
     *
     * @param {Node.id} nodeId
     * @return {boolean} true if part of a cluster.
     */

  }, {
    key: '_isClusteredNode',
    value: function _isClusteredNode(nodeId) {
      return this.clusteredNodes[nodeId] !== undefined;
    }

    /**
     * Determine if edge with given id is not visible due to clustering.
     *
     * An edge is considered clustered if:
     * - it is directly replaced by a clustering edge
     * - any of its connecting nodes is in a cluster
     *
     * @param {vis.Edge.id} edgeId
     * @return {boolean} true if part of a cluster.
     */

  }, {
    key: '_isClusteredEdge',
    value: function _isClusteredEdge(edgeId) {
      return this.clusteredEdges[edgeId] !== undefined;
    }
  }]);
  return ClusterEngine;
}();

exports['default'] = ClusterEngine;

/***/ }),
/* 228 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

var util = __webpack_require__(2);
var Node = __webpack_require__(47)["default"];

/**
 * A Cluster is a special Node that allows a group of Nodes positioned closely together
 * to be represented by a single Cluster Node.
 *
 * @extends Node
 */

var Cluster = function (_Node) {
  (0, _inherits3["default"])(Cluster, _Node);

  /**
   * @param {Object} options
   * @param {Object} body
   * @param {Array.<HTMLImageElement>}imagelist
   * @param {Array} grouplist
   * @param {Object} globalOptions
   * @param {Object} defaultOptions     Global default options for nodes
   */
  function Cluster(options, body, imagelist, grouplist, globalOptions, defaultOptions) {
    (0, _classCallCheck3["default"])(this, Cluster);

    var _this = (0, _possibleConstructorReturn3["default"])(this, (Cluster.__proto__ || (0, _getPrototypeOf2["default"])(Cluster)).call(this, options, body, imagelist, grouplist, globalOptions, defaultOptions));

    _this.isCluster = true;
    _this.containedNodes = {};
    _this.containedEdges = {};
    return _this;
  }

  /**
   * Transfer child cluster data to current and disconnect the child cluster.
   *
   * Please consult the header comment in 'Clustering.js' for the fields set here.
   *
   * @param {string|number} childClusterId  id of child cluster to open
   */


  (0, _createClass3["default"])(Cluster, [{
    key: "_openChildCluster",
    value: function _openChildCluster(childClusterId) {
      var _this2 = this;

      var childCluster = this.body.nodes[childClusterId];
      if (this.containedNodes[childClusterId] === undefined) {
        throw new Error('node with id: ' + childClusterId + ' not in current cluster');
      }
      if (!childCluster.isCluster) {
        throw new Error('node with id: ' + childClusterId + ' is not a cluster');
      }

      // Disconnect child cluster from current cluster
      delete this.containedNodes[childClusterId];
      util.forEach(childCluster.edges, function (edge) {
        delete _this2.containedEdges[edge.id];
      });

      // Transfer nodes and edges
      util.forEach(childCluster.containedNodes, function (node, nodeId) {
        _this2.containedNodes[nodeId] = node;
      });
      childCluster.containedNodes = {};

      util.forEach(childCluster.containedEdges, function (edge, edgeId) {
        _this2.containedEdges[edgeId] = edge;
      });
      childCluster.containedEdges = {};

      // Transfer edges within cluster edges which are clustered
      util.forEach(childCluster.edges, function (clusterEdge) {
        util.forEach(_this2.edges, function (parentClusterEdge) {
          // Assumption: a clustered edge can only be present in a single clustering edge
          // Not tested here
          var index = parentClusterEdge.clusteringEdgeReplacingIds.indexOf(clusterEdge.id);
          if (index === -1) return;

          util.forEach(clusterEdge.clusteringEdgeReplacingIds, function (srcId) {
            parentClusterEdge.clusteringEdgeReplacingIds.push(srcId);

            // Maintain correct bookkeeping for transferred edge
            _this2.body.edges[srcId].edgeReplacedById = parentClusterEdge.id;
          });

          // Remove cluster edge from parent cluster edge
          parentClusterEdge.clusteringEdgeReplacingIds.splice(index, 1);
        });
      });
      childCluster.edges = [];
    }
  }]);
  return Cluster;
}(Node);

exports["default"] = Cluster;

/***/ }),
/* 229 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * Initializes window.requestAnimationFrame() to a usable form.
 *
 * Specifically, set up this method for the case of running on node.js with jsdom enabled.
 *
 * NOTES:
 *
 * * On node.js, when calling this directly outside of this class, `window` is not defined.
 *   This happens even if jsdom is used.
 * * For node.js + jsdom, `window` is available at the moment the constructor is called.
 *   For this reason, the called is placed within the constructor.
 * * Even then, `window.requestAnimationFrame()` is not defined, so it still needs to be added.
 * * During unit testing, it happens that the window object is reset during execution, causing
 *   a runtime error due to missing `requestAnimationFrame()`. This needs to be compensated for,
 *   see `_requestNextFrame()`.
 * * Since this is a global object, it may affect other modules besides `Network`. With normal
 *   usage, this does not cause any problems. During unit testing, errors may occur. These have
 *   been compensated for, see comment block in _requestNextFrame().
 *
 * @private
 */
function _initRequestAnimationFrame() {
  var func;

  if (window !== undefined) {
    func = window.requestAnimationFrame || window.mozRequestAnimationFrame || window.webkitRequestAnimationFrame || window.msRequestAnimationFrame;
  }

  if (func === undefined) {
    // window or method not present, setting mock requestAnimationFrame
    window.requestAnimationFrame = function (callback) {
      //console.log("Called mock requestAnimationFrame");
      callback();
    };
  } else {
    window.requestAnimationFrame = func;
  }
}

var util = __webpack_require__(2);

/**
 * The canvas renderer
 */

var CanvasRenderer = function () {
  /**
   * @param {Object} body
   * @param {Canvas} canvas
   */
  function CanvasRenderer(body, canvas) {
    (0, _classCallCheck3["default"])(this, CanvasRenderer);

    _initRequestAnimationFrame();
    this.body = body;
    this.canvas = canvas;

    this.redrawRequested = false;
    this.renderTimer = undefined;
    this.requiresTimeout = true;
    this.renderingActive = false;
    this.renderRequests = 0;
    this.allowRedraw = true;

    this.dragging = false;
    this.options = {};
    this.defaultOptions = {
      hideEdgesOnDrag: false,
      hideNodesOnDrag: false
    };
    util.extend(this.options, this.defaultOptions);

    this._determineBrowserMethod();
    this.bindEventListeners();
  }

  /**
   * Binds event listeners
   */


  (0, _createClass3["default"])(CanvasRenderer, [{
    key: "bindEventListeners",
    value: function bindEventListeners() {
      var _this = this;

      this.body.emitter.on("dragStart", function () {
        _this.dragging = true;
      });
      this.body.emitter.on("dragEnd", function () {
        _this.dragging = false;
      });
      this.body.emitter.on("_resizeNodes", function () {
        _this._resizeNodes();
      });
      this.body.emitter.on("_redraw", function () {
        if (_this.renderingActive === false) {
          _this._redraw();
        }
      });
      this.body.emitter.on("_blockRedraw", function () {
        _this.allowRedraw = false;
      });
      this.body.emitter.on("_allowRedraw", function () {
        _this.allowRedraw = true;_this.redrawRequested = false;
      });
      this.body.emitter.on("_requestRedraw", this._requestRedraw.bind(this));
      this.body.emitter.on("_startRendering", function () {
        _this.renderRequests += 1;
        _this.renderingActive = true;
        _this._startRendering();
      });
      this.body.emitter.on("_stopRendering", function () {
        _this.renderRequests -= 1;
        _this.renderingActive = _this.renderRequests > 0;
        _this.renderTimer = undefined;
      });
      this.body.emitter.on('destroy', function () {
        _this.renderRequests = 0;
        _this.allowRedraw = false;
        _this.renderingActive = false;
        if (_this.requiresTimeout === true) {
          clearTimeout(_this.renderTimer);
        } else {
          window.cancelAnimationFrame(_this.renderTimer);
        }
        _this.body.emitter.off();
      });
    }

    /**
     *
     * @param {Object} options
     */

  }, {
    key: "setOptions",
    value: function setOptions(options) {
      if (options !== undefined) {
        var fields = ['hideEdgesOnDrag', 'hideNodesOnDrag'];
        util.selectiveDeepExtend(fields, this.options, options);
      }
    }

    /**
     * Prepare the drawing of the next frame.
     *
     * Calls the callback when the next frame can or will be drawn.
     *
     * @param {function} callback
     * @param {number} delay - timeout case only, wait this number of milliseconds
     * @returns {function|undefined}
     * @private
     */

  }, {
    key: "_requestNextFrame",
    value: function _requestNextFrame(callback, delay) {
      // During unit testing, it happens that the mock window object is reset while
      // the next frame is still pending. Then, either 'window' is not present, or
      // 'requestAnimationFrame()' is not present because it is not defined on the
      // mock window object.
      //
      // As a consequence, unrelated unit tests may appear to fail, even if the problem
      // described happens in the current unit test.
      //
      // This is not something that will happen in normal operation, but we still need
      // to take it into account.
      //
      if (typeof window === 'undefined') return; // Doing `if (window === undefined)` does not work here!

      var timer = void 0;

      var myWindow = window; // Grab a reference to reduce the possibility that 'window' is reset
      // while running this method.

      if (this.requiresTimeout === true) {
        // wait given number of milliseconds and perform the animation step function
        timer = myWindow.setTimeout(callback, delay);
      } else {
        if (myWindow.requestAnimationFrame) {
          timer = myWindow.requestAnimationFrame(callback);
        }
      }

      return timer;
    }

    /**
     *
     * @private
     */

  }, {
    key: "_startRendering",
    value: function _startRendering() {
      if (this.renderingActive === true) {
        if (this.renderTimer === undefined) {
          this.renderTimer = this._requestNextFrame(this._renderStep.bind(this), this.simulationInterval);
        }
      }
    }

    /**
     *
     * @private
     */

  }, {
    key: "_renderStep",
    value: function _renderStep() {
      if (this.renderingActive === true) {
        // reset the renderTimer so a new scheduled animation step can be set
        this.renderTimer = undefined;

        if (this.requiresTimeout === true) {
          // this schedules a new simulation step
          this._startRendering();
        }

        this._redraw();

        if (this.requiresTimeout === false) {
          // this schedules a new simulation step
          this._startRendering();
        }
      }
    }

    /**
     * Redraw the network with the current data
     * chart will be resized too.
     */

  }, {
    key: "redraw",
    value: function redraw() {
      this.body.emitter.emit('setSize');
      this._redraw();
    }

    /**
     * Redraw the network with the current data
     * @private
     */

  }, {
    key: "_requestRedraw",
    value: function _requestRedraw() {
      var _this2 = this;

      if (this.redrawRequested !== true && this.renderingActive === false && this.allowRedraw === true) {
        this.redrawRequested = true;
        this._requestNextFrame(function () {
          _this2._redraw(false);
        }, 0);
      }
    }

    /**
     * Redraw the network with the current data
     * @param {boolean} [hidden=false] | Used to get the first estimate of the node sizes.
     *                                   Only the nodes are drawn after which they are quickly drawn over.
     * @private
     */

  }, {
    key: "_redraw",
    value: function _redraw() {
      var hidden = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

      if (this.allowRedraw === true) {
        this.body.emitter.emit("initRedraw");

        this.redrawRequested = false;

        // when the container div was hidden, this fixes it back up!
        if (this.canvas.frame.canvas.width === 0 || this.canvas.frame.canvas.height === 0) {
          this.canvas.setSize();
        }

        this.canvas.setTransform();

        var ctx = this.canvas.getContext();

        // clear the canvas
        var w = this.canvas.frame.canvas.clientWidth;
        var h = this.canvas.frame.canvas.clientHeight;
        ctx.clearRect(0, 0, w, h);

        // if the div is hidden, we stop the redraw here for performance.
        if (this.canvas.frame.clientWidth === 0) {
          return;
        }

        // set scaling and translation
        ctx.save();
        ctx.translate(this.body.view.translation.x, this.body.view.translation.y);
        ctx.scale(this.body.view.scale, this.body.view.scale);

        ctx.beginPath();
        this.body.emitter.emit("beforeDrawing", ctx);
        ctx.closePath();

        if (hidden === false) {
          if (this.dragging === false || this.dragging === true && this.options.hideEdgesOnDrag === false) {
            this._drawEdges(ctx);
          }
        }

        if (this.dragging === false || this.dragging === true && this.options.hideNodesOnDrag === false) {
          this._drawNodes(ctx, hidden);
        }

        ctx.beginPath();
        this.body.emitter.emit("afterDrawing", ctx);
        ctx.closePath();

        // restore original scaling and translation
        ctx.restore();
        if (hidden === true) {
          ctx.clearRect(0, 0, w, h);
        }
      }
    }

    /**
     * Redraw all nodes
     *
     * @param {CanvasRenderingContext2D}   ctx
     * @param {boolean} [alwaysShow]
     * @private
     */

  }, {
    key: "_resizeNodes",
    value: function _resizeNodes() {
      this.canvas.setTransform();
      var ctx = this.canvas.getContext();
      ctx.save();
      ctx.translate(this.body.view.translation.x, this.body.view.translation.y);
      ctx.scale(this.body.view.scale, this.body.view.scale);

      var nodes = this.body.nodes;
      var node = void 0;

      // resize all nodes
      for (var nodeId in nodes) {
        if (nodes.hasOwnProperty(nodeId)) {
          node = nodes[nodeId];
          node.resize(ctx);
          node.updateBoundingBox(ctx, node.selected);
        }
      }

      // restore original scaling and translation
      ctx.restore();
    }

    /**
     * Redraw all nodes
     *
     * @param {CanvasRenderingContext2D} ctx  2D context of a HTML canvas
     * @param {boolean} [alwaysShow]
     * @private
     */

  }, {
    key: "_drawNodes",
    value: function _drawNodes(ctx) {
      var alwaysShow = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

      var nodes = this.body.nodes;
      var nodeIndices = this.body.nodeIndices;
      var node = void 0;
      var selected = [];
      var margin = 20;
      var topLeft = this.canvas.DOMtoCanvas({ x: -margin, y: -margin });
      var bottomRight = this.canvas.DOMtoCanvas({
        x: this.canvas.frame.canvas.clientWidth + margin,
        y: this.canvas.frame.canvas.clientHeight + margin
      });
      var viewableArea = { top: topLeft.y, left: topLeft.x, bottom: bottomRight.y, right: bottomRight.x };

      // draw unselected nodes;
      for (var i = 0; i < nodeIndices.length; i++) {
        node = nodes[nodeIndices[i]];
        // set selected nodes aside
        if (node.isSelected()) {
          selected.push(nodeIndices[i]);
        } else {
          if (alwaysShow === true) {
            node.draw(ctx);
          } else if (node.isBoundingBoxOverlappingWith(viewableArea) === true) {
            node.draw(ctx);
          } else {
            node.updateBoundingBox(ctx, node.selected);
          }
        }
      }

      // draw the selected nodes on top
      for (var _i = 0; _i < selected.length; _i++) {
        node = nodes[selected[_i]];
        node.draw(ctx);
      }
    }

    /**
     * Redraw all edges
     * @param {CanvasRenderingContext2D} ctx  2D context of a HTML canvas
     * @private
     */

  }, {
    key: "_drawEdges",
    value: function _drawEdges(ctx) {
      var edges = this.body.edges;
      var edgeIndices = this.body.edgeIndices;
      var edge = void 0;

      for (var i = 0; i < edgeIndices.length; i++) {
        edge = edges[edgeIndices[i]];
        if (edge.connected === true) {
          edge.draw(ctx);
        }
      }
    }

    /**
     * Determine if the browser requires a setTimeout or a requestAnimationFrame. This was required because
     * some implementations (safari and IE9) did not support requestAnimationFrame
     * @private
     */

  }, {
    key: "_determineBrowserMethod",
    value: function _determineBrowserMethod() {
      if (typeof window !== 'undefined') {
        var browserType = navigator.userAgent.toLowerCase();
        this.requiresTimeout = false;
        if (browserType.indexOf('msie 9.0') != -1) {
          // IE 9
          this.requiresTimeout = true;
        } else if (browserType.indexOf('safari') != -1) {
          // safari
          if (browserType.indexOf('chrome') <= -1) {
            this.requiresTimeout = true;
          }
        }
      } else {
        this.requiresTimeout = true;
      }
    }
  }]);
  return CanvasRenderer;
}();

exports["default"] = CanvasRenderer;

/***/ }),
/* 230 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var Hammer = __webpack_require__(10);
var hammerUtil = __webpack_require__(37);

var util = __webpack_require__(2);

/**
 * Create the main frame for the Network.
 * This function is executed once when a Network object is created. The frame
 * contains a canvas, and this canvas contains all objects like the axis and
 * nodes.
 */

var Canvas = function () {
  /**
   * @param {Object} body
   */
  function Canvas(body) {
    (0, _classCallCheck3['default'])(this, Canvas);

    this.body = body;
    this.pixelRatio = 1;
    this.resizeTimer = undefined;
    this.resizeFunction = this._onResize.bind(this);
    this.cameraState = {};
    this.initialized = false;
    this.canvasViewCenter = {};

    this.options = {};
    this.defaultOptions = {
      autoResize: true,
      height: '100%',
      width: '100%'
    };
    util.extend(this.options, this.defaultOptions);

    this.bindEventListeners();
  }

  /**
   * Binds event listeners
   */


  (0, _createClass3['default'])(Canvas, [{
    key: 'bindEventListeners',
    value: function bindEventListeners() {
      var _this = this;

      // bind the events
      this.body.emitter.once("resize", function (obj) {
        if (obj.width !== 0) {
          _this.body.view.translation.x = obj.width * 0.5;
        }
        if (obj.height !== 0) {
          _this.body.view.translation.y = obj.height * 0.5;
        }
      });
      this.body.emitter.on("setSize", this.setSize.bind(this));
      this.body.emitter.on("destroy", function () {
        _this.hammerFrame.destroy();
        _this.hammer.destroy();
        _this._cleanUp();
      });
    }

    /**
     * @param {Object} options
     */

  }, {
    key: 'setOptions',
    value: function setOptions(options) {
      var _this2 = this;

      if (options !== undefined) {
        var fields = ['width', 'height', 'autoResize'];
        util.selectiveDeepExtend(fields, this.options, options);
      }

      if (this.options.autoResize === true) {
        // automatically adapt to a changing size of the browser.
        this._cleanUp();
        this.resizeTimer = setInterval(function () {
          var changed = _this2.setSize();
          if (changed === true) {
            _this2.body.emitter.emit("_requestRedraw");
          }
        }, 1000);
        this.resizeFunction = this._onResize.bind(this);
        util.addEventListener(window, 'resize', this.resizeFunction);
      }
    }

    /**
     * @private
     */

  }, {
    key: '_cleanUp',
    value: function _cleanUp() {
      // automatically adapt to a changing size of the browser.
      if (this.resizeTimer !== undefined) {
        clearInterval(this.resizeTimer);
      }
      util.removeEventListener(window, 'resize', this.resizeFunction);
      this.resizeFunction = undefined;
    }

    /**
     * @private
     */

  }, {
    key: '_onResize',
    value: function _onResize() {
      this.setSize();
      this.body.emitter.emit("_redraw");
    }

    /**
     * Get and store the cameraState
     *
     * @param {number} [pixelRatio=this.pixelRatio]
     * @private
     */

  }, {
    key: '_getCameraState',
    value: function _getCameraState() {
      var pixelRatio = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.pixelRatio;

      if (this.initialized === true) {
        this.cameraState.previousWidth = this.frame.canvas.width / pixelRatio;
        this.cameraState.previousHeight = this.frame.canvas.height / pixelRatio;
        this.cameraState.scale = this.body.view.scale;
        this.cameraState.position = this.DOMtoCanvas({
          x: 0.5 * this.frame.canvas.width / pixelRatio,
          y: 0.5 * this.frame.canvas.height / pixelRatio
        });
      }
    }

    /**
     * Set the cameraState
     * @private
     */

  }, {
    key: '_setCameraState',
    value: function _setCameraState() {
      if (this.cameraState.scale !== undefined && this.frame.canvas.clientWidth !== 0 && this.frame.canvas.clientHeight !== 0 && this.pixelRatio !== 0 && this.cameraState.previousWidth > 0) {

        var widthRatio = this.frame.canvas.width / this.pixelRatio / this.cameraState.previousWidth;
        var heightRatio = this.frame.canvas.height / this.pixelRatio / this.cameraState.previousHeight;
        var newScale = this.cameraState.scale;

        if (widthRatio != 1 && heightRatio != 1) {
          newScale = this.cameraState.scale * 0.5 * (widthRatio + heightRatio);
        } else if (widthRatio != 1) {
          newScale = this.cameraState.scale * widthRatio;
        } else if (heightRatio != 1) {
          newScale = this.cameraState.scale * heightRatio;
        }

        this.body.view.scale = newScale;
        // this comes from the view module.
        var currentViewCenter = this.DOMtoCanvas({
          x: 0.5 * this.frame.canvas.clientWidth,
          y: 0.5 * this.frame.canvas.clientHeight
        });

        var distanceFromCenter = { // offset from view, distance view has to change by these x and y to center the node
          x: currentViewCenter.x - this.cameraState.position.x,
          y: currentViewCenter.y - this.cameraState.position.y
        };
        this.body.view.translation.x += distanceFromCenter.x * this.body.view.scale;
        this.body.view.translation.y += distanceFromCenter.y * this.body.view.scale;
      }
    }

    /**
     *
     * @param {number|string} value
     * @returns {string}
     * @private
     */

  }, {
    key: '_prepareValue',
    value: function _prepareValue(value) {
      if (typeof value === 'number') {
        return value + 'px';
      } else if (typeof value === 'string') {
        if (value.indexOf('%') !== -1 || value.indexOf('px') !== -1) {
          return value;
        } else if (value.indexOf('%') === -1) {
          return value + 'px';
        }
      }
      throw new Error('Could not use the value supplied for width or height:' + value);
    }

    /**
     * Create the HTML
     */

  }, {
    key: '_create',
    value: function _create() {
      // remove all elements from the container element.
      while (this.body.container.hasChildNodes()) {
        this.body.container.removeChild(this.body.container.firstChild);
      }

      this.frame = document.createElement('div');
      this.frame.className = 'vis-network';
      this.frame.style.position = 'relative';
      this.frame.style.overflow = 'hidden';
      this.frame.tabIndex = 900; // tab index is required for keycharm to bind keystrokes to the div instead of the window

      //////////////////////////////////////////////////////////////////

      this.frame.canvas = document.createElement("canvas");
      this.frame.canvas.style.position = 'relative';
      this.frame.appendChild(this.frame.canvas);

      if (!this.frame.canvas.getContext) {
        var noCanvas = document.createElement('DIV');
        noCanvas.style.color = 'red';
        noCanvas.style.fontWeight = 'bold';
        noCanvas.style.padding = '10px';
        noCanvas.innerHTML = 'Error: your browser does not support HTML canvas';
        this.frame.canvas.appendChild(noCanvas);
      } else {
        this._setPixelRatio();
        this.setTransform();
      }

      // add the frame to the container element
      this.body.container.appendChild(this.frame);

      this.body.view.scale = 1;
      this.body.view.translation = { x: 0.5 * this.frame.canvas.clientWidth, y: 0.5 * this.frame.canvas.clientHeight };

      this._bindHammer();
    }

    /**
     * This function binds hammer, it can be repeated over and over due to the uniqueness check.
     * @private
     */

  }, {
    key: '_bindHammer',
    value: function _bindHammer() {
      var _this3 = this;

      if (this.hammer !== undefined) {
        this.hammer.destroy();
      }
      this.drag = {};
      this.pinch = {};

      // init hammer
      this.hammer = new Hammer(this.frame.canvas);
      this.hammer.get('pinch').set({ enable: true });
      // enable to get better response, todo: test on mobile.
      this.hammer.get('pan').set({ threshold: 5, direction: Hammer.DIRECTION_ALL });

      hammerUtil.onTouch(this.hammer, function (event) {
        _this3.body.eventListeners.onTouch(event);
      });
      this.hammer.on('tap', function (event) {
        _this3.body.eventListeners.onTap(event);
      });
      this.hammer.on('doubletap', function (event) {
        _this3.body.eventListeners.onDoubleTap(event);
      });
      this.hammer.on('press', function (event) {
        _this3.body.eventListeners.onHold(event);
      });
      this.hammer.on('panstart', function (event) {
        _this3.body.eventListeners.onDragStart(event);
      });
      this.hammer.on('panmove', function (event) {
        _this3.body.eventListeners.onDrag(event);
      });
      this.hammer.on('panend', function (event) {
        _this3.body.eventListeners.onDragEnd(event);
      });
      this.hammer.on('pinch', function (event) {
        _this3.body.eventListeners.onPinch(event);
      });

      // TODO: neatly cleanup these handlers when re-creating the Canvas, IF these are done with hammer, event.stopPropagation will not work?
      this.frame.canvas.addEventListener('mousewheel', function (event) {
        _this3.body.eventListeners.onMouseWheel(event);
      });
      this.frame.canvas.addEventListener('DOMMouseScroll', function (event) {
        _this3.body.eventListeners.onMouseWheel(event);
      });

      this.frame.canvas.addEventListener('mousemove', function (event) {
        _this3.body.eventListeners.onMouseMove(event);
      });
      this.frame.canvas.addEventListener('contextmenu', function (event) {
        _this3.body.eventListeners.onContext(event);
      });

      this.hammerFrame = new Hammer(this.frame);
      hammerUtil.onRelease(this.hammerFrame, function (event) {
        _this3.body.eventListeners.onRelease(event);
      });
    }

    /**
     * Set a new size for the network
     * @param {string} width   Width in pixels or percentage (for example '800px'
     *                         or '50%')
     * @param {string} height  Height in pixels or percentage  (for example '400px'
     *                         or '30%')
     * @returns {boolean}
     */

  }, {
    key: 'setSize',
    value: function setSize() {
      var width = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.options.width;
      var height = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.options.height;

      width = this._prepareValue(width);
      height = this._prepareValue(height);

      var emitEvent = false;
      var oldWidth = this.frame.canvas.width;
      var oldHeight = this.frame.canvas.height;

      // update the pixel ratio
      //
      // NOTE: Comment in following is rather inconsistent; this is the ONLY place in the code
      //       where it is assumed that the pixel ratio could change at runtime.
      //       The only way I can think of this happening is a rotating screen or tablet; but then
      //       there should be a mechanism for reloading the data (TODO: check if this is present).
      //
      //       If the assumption is true (i.e. pixel ratio can change at runtime), then *all* usage
      //       of pixel ratio must be overhauled for this.
      //
      //       For the time being, I will humor the assumption here, and in the rest of the code assume it is
      //       constant.
      var previousRatio = this.pixelRatio; // we cache this because the camera state storage needs the old value
      this._setPixelRatio();

      if (width != this.options.width || height != this.options.height || this.frame.style.width != width || this.frame.style.height != height) {
        this._getCameraState(previousRatio);

        this.frame.style.width = width;
        this.frame.style.height = height;

        this.frame.canvas.style.width = '100%';
        this.frame.canvas.style.height = '100%';

        this.frame.canvas.width = Math.round(this.frame.canvas.clientWidth * this.pixelRatio);
        this.frame.canvas.height = Math.round(this.frame.canvas.clientHeight * this.pixelRatio);

        this.options.width = width;
        this.options.height = height;

        this.canvasViewCenter = {
          x: 0.5 * this.frame.clientWidth,
          y: 0.5 * this.frame.clientHeight
        };

        emitEvent = true;
      } else {
        // this would adapt the width of the canvas to the width from 100% if and only if
        // there is a change.

        var newWidth = Math.round(this.frame.canvas.clientWidth * this.pixelRatio);
        var newHeight = Math.round(this.frame.canvas.clientHeight * this.pixelRatio);

        // store the camera if there is a change in size.
        if (this.frame.canvas.width !== newWidth || this.frame.canvas.height !== newHeight) {
          this._getCameraState(previousRatio);
        }

        if (this.frame.canvas.width !== newWidth) {
          this.frame.canvas.width = newWidth;
          emitEvent = true;
        }
        if (this.frame.canvas.height !== newHeight) {
          this.frame.canvas.height = newHeight;
          emitEvent = true;
        }
      }

      if (emitEvent === true) {
        this.body.emitter.emit('resize', {
          width: Math.round(this.frame.canvas.width / this.pixelRatio),
          height: Math.round(this.frame.canvas.height / this.pixelRatio),
          oldWidth: Math.round(oldWidth / this.pixelRatio),
          oldHeight: Math.round(oldHeight / this.pixelRatio)
        });

        // restore the camera on change.
        this._setCameraState();
      }

      // set initialized so the get and set camera will work from now on.
      this.initialized = true;
      return emitEvent;
    }

    /**
     *
     * @returns {CanvasRenderingContext2D}
     */

  }, {
    key: 'getContext',
    value: function getContext() {
      return this.frame.canvas.getContext("2d");
    }

    /**
     * Determine the pixel ratio for various browsers.
     *
     * @returns {number}
     * @private
     */

  }, {
    key: '_determinePixelRatio',
    value: function _determinePixelRatio() {
      var ctx = this.getContext();
      if (ctx === undefined) {
        throw new Error("Could not get canvax context");
      }

      var numerator = 1;
      if (typeof window !== 'undefined') {
        // (window !== undefined) doesn't work here!
        // Protection during unit tests, where 'window' can be missing
        numerator = window.devicePixelRatio || 1;
      }

      var denominator = ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1;

      return numerator / denominator;
    }

    /**
     * Lazy determination of pixel ratio.
     *
     * @private
     */

  }, {
    key: '_setPixelRatio',
    value: function _setPixelRatio() {
      this.pixelRatio = this._determinePixelRatio();
    }

    /**
     * Set the transform in the contained context, based on its pixelRatio
     */

  }, {
    key: 'setTransform',
    value: function setTransform() {
      var ctx = this.getContext();
      if (ctx === undefined) {
        throw new Error("Could not get canvax context");
      }

      ctx.setTransform(this.pixelRatio, 0, 0, this.pixelRatio, 0, 0);
    }

    /**
     * Convert the X coordinate in DOM-space (coordinate point in browser relative to the container div) to
     * the X coordinate in canvas-space (the simulation sandbox, which the camera looks upon)
     * @param {number} x
     * @returns {number}
     * @private
     */

  }, {
    key: '_XconvertDOMtoCanvas',
    value: function _XconvertDOMtoCanvas(x) {
      return (x - this.body.view.translation.x) / this.body.view.scale;
    }

    /**
     * Convert the X coordinate in canvas-space (the simulation sandbox, which the camera looks upon) to
     * the X coordinate in DOM-space (coordinate point in browser relative to the container div)
     * @param {number} x
     * @returns {number}
     * @private
     */

  }, {
    key: '_XconvertCanvasToDOM',
    value: function _XconvertCanvasToDOM(x) {
      return x * this.body.view.scale + this.body.view.translation.x;
    }

    /**
     * Convert the Y coordinate in DOM-space (coordinate point in browser relative to the container div) to
     * the Y coordinate in canvas-space (the simulation sandbox, which the camera looks upon)
     * @param {number} y
     * @returns {number}
     * @private
     */

  }, {
    key: '_YconvertDOMtoCanvas',
    value: function _YconvertDOMtoCanvas(y) {
      return (y - this.body.view.translation.y) / this.body.view.scale;
    }

    /**
     * Convert the Y coordinate in canvas-space (the simulation sandbox, which the camera looks upon) to
     * the Y coordinate in DOM-space (coordinate point in browser relative to the container div)
     * @param {number} y
     * @returns {number}
     * @private
     */

  }, {
    key: '_YconvertCanvasToDOM',
    value: function _YconvertCanvasToDOM(y) {
      return y * this.body.view.scale + this.body.view.translation.y;
    }

    /**
     * @param {point} pos
     * @returns {point}
     */

  }, {
    key: 'canvasToDOM',
    value: function canvasToDOM(pos) {
      return { x: this._XconvertCanvasToDOM(pos.x), y: this._YconvertCanvasToDOM(pos.y) };
    }

    /**
     *
     * @param {point} pos
     * @returns {point}
     */

  }, {
    key: 'DOMtoCanvas',
    value: function DOMtoCanvas(pos) {
      return { x: this._XconvertDOMtoCanvas(pos.x), y: this._YconvertDOMtoCanvas(pos.y) };
    }
  }]);
  return Canvas;
}();

exports['default'] = Canvas;

/***/ }),
/* 231 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);

var NetworkUtil = __webpack_require__(76)['default'];

/**
 * The view
 */

var View = function () {
  /**
   * @param {Object} body
   * @param {Canvas} canvas
   */
  function View(body, canvas) {
    var _this = this;

    (0, _classCallCheck3['default'])(this, View);

    this.body = body;
    this.canvas = canvas;

    this.animationSpeed = 1 / this.renderRefreshRate;
    this.animationEasingFunction = "easeInOutQuint";
    this.easingTime = 0;
    this.sourceScale = 0;
    this.targetScale = 0;
    this.sourceTranslation = 0;
    this.targetTranslation = 0;
    this.lockedOnNodeId = undefined;
    this.lockedOnNodeOffset = undefined;
    this.touchTime = 0;

    this.viewFunction = undefined;

    this.body.emitter.on("fit", this.fit.bind(this));
    this.body.emitter.on("animationFinished", function () {
      _this.body.emitter.emit("_stopRendering");
    });
    this.body.emitter.on("unlockNode", this.releaseNode.bind(this));
  }

  /**
   *
   * @param {Object} [options={}]
   */


  (0, _createClass3['default'])(View, [{
    key: 'setOptions',
    value: function setOptions() {
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

      this.options = options;
    }

    /**
     * This function zooms out to fit all data on screen based on amount of nodes
     * @param {Object} [options={{nodes=Array}}]
     * @param {boolean} [initialZoom=false]  | zoom based on fitted formula or range, true = fitted, default = false;
     */

  }, {
    key: 'fit',
    value: function fit() {
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : { nodes: [] };
      var initialZoom = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

      var range = void 0;
      var zoomLevel = void 0;
      if (options.nodes === undefined || options.nodes.length === 0) {
        options.nodes = this.body.nodeIndices;
      }

      if (initialZoom === true) {
        // check if more than half of the nodes have a predefined position. If so, we use the range, not the approximation.
        var positionDefined = 0;
        for (var nodeId in this.body.nodes) {
          if (this.body.nodes.hasOwnProperty(nodeId)) {
            var node = this.body.nodes[nodeId];
            if (node.predefinedPosition === true) {
              positionDefined += 1;
            }
          }
        }
        if (positionDefined > 0.5 * this.body.nodeIndices.length) {
          this.fit(options, false);
          return;
        }

        range = NetworkUtil.getRange(this.body.nodes, options.nodes);

        var numberOfNodes = this.body.nodeIndices.length;
        zoomLevel = 12.662 / (numberOfNodes + 7.4147) + 0.0964822; // this is obtained from fitting a dataset from 5 points with scale levels that looked good.

        // correct for larger canvasses.
        var factor = Math.min(this.canvas.frame.canvas.clientWidth / 600, this.canvas.frame.canvas.clientHeight / 600);
        zoomLevel *= factor;
      } else {
        this.body.emitter.emit("_resizeNodes");
        range = NetworkUtil.getRange(this.body.nodes, options.nodes);

        var xDistance = Math.abs(range.maxX - range.minX) * 1.1;
        var yDistance = Math.abs(range.maxY - range.minY) * 1.1;

        var xZoomLevel = this.canvas.frame.canvas.clientWidth / xDistance;
        var yZoomLevel = this.canvas.frame.canvas.clientHeight / yDistance;

        zoomLevel = xZoomLevel <= yZoomLevel ? xZoomLevel : yZoomLevel;
      }

      if (zoomLevel > 1.0) {
        zoomLevel = 1.0;
      } else if (zoomLevel === 0) {
        zoomLevel = 1.0;
      }

      var center = NetworkUtil.findCenter(range);
      var animationOptions = { position: center, scale: zoomLevel, animation: options.animation };
      this.moveTo(animationOptions);
    }

    // animation

    /**
     * Center a node in view.
     *
     * @param {number} nodeId
     * @param {number} [options]
     */

  }, {
    key: 'focus',
    value: function focus(nodeId) {
      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

      if (this.body.nodes[nodeId] !== undefined) {
        var nodePosition = { x: this.body.nodes[nodeId].x, y: this.body.nodes[nodeId].y };
        options.position = nodePosition;
        options.lockedOnNode = nodeId;

        this.moveTo(options);
      } else {
        console.log("Node: " + nodeId + " cannot be found.");
      }
    }

    /**
     *
     * @param {Object} options  |  options.offset   = {x:number, y:number}   // offset from the center in DOM pixels
     *                          |  options.scale    = number                 // scale to move to
     *                          |  options.position = {x:number, y:number}   // position to move to
     *                          |  options.animation = {duration:number, easingFunction:String} || Boolean   // position to move to
     */

  }, {
    key: 'moveTo',
    value: function moveTo(options) {
      if (options === undefined) {
        options = {};
        return;
      }
      if (options.offset === undefined) {
        options.offset = { x: 0, y: 0 };
      }
      if (options.offset.x === undefined) {
        options.offset.x = 0;
      }
      if (options.offset.y === undefined) {
        options.offset.y = 0;
      }
      if (options.scale === undefined) {
        options.scale = this.body.view.scale;
      }
      if (options.position === undefined) {
        options.position = this.getViewPosition();
      }
      if (options.animation === undefined) {
        options.animation = { duration: 0 };
      }
      if (options.animation === false) {
        options.animation = { duration: 0 };
      }
      if (options.animation === true) {
        options.animation = {};
      }
      if (options.animation.duration === undefined) {
        options.animation.duration = 1000;
      } // default duration
      if (options.animation.easingFunction === undefined) {
        options.animation.easingFunction = "easeInOutQuad";
      } // default easing function

      this.animateView(options);
    }

    /**
     *
     * @param {Object} options  |  options.offset   = {x:number, y:number}   // offset from the center in DOM pixels
     *                          |  options.time     = number                 // animation time in milliseconds
     *                          |  options.scale    = number                 // scale to animate to
     *                          |  options.position = {x:number, y:number}   // position to animate to
     *                          |  options.easingFunction = String           // linear, easeInQuad, easeOutQuad, easeInOutQuad,
     *                                                                       // easeInCubic, easeOutCubic, easeInOutCubic,
     *                                                                       // easeInQuart, easeOutQuart, easeInOutQuart,
     *                                                                       // easeInQuint, easeOutQuint, easeInOutQuint
     */

  }, {
    key: 'animateView',
    value: function animateView(options) {
      if (options === undefined) {
        return;
      }
      this.animationEasingFunction = options.animation.easingFunction;
      // release if something focussed on the node
      this.releaseNode();
      if (options.locked === true) {
        this.lockedOnNodeId = options.lockedOnNode;
        this.lockedOnNodeOffset = options.offset;
      }

      // forcefully complete the old animation if it was still running
      if (this.easingTime != 0) {
        this._transitionRedraw(true); // by setting easingtime to 1, we finish the animation.
      }

      this.sourceScale = this.body.view.scale;
      this.sourceTranslation = this.body.view.translation;
      this.targetScale = options.scale;

      // set the scale so the viewCenter is based on the correct zoom level. This is overridden in the transitionRedraw
      // but at least then we'll have the target transition
      this.body.view.scale = this.targetScale;
      var viewCenter = this.canvas.DOMtoCanvas({ x: 0.5 * this.canvas.frame.canvas.clientWidth, y: 0.5 * this.canvas.frame.canvas.clientHeight });

      var distanceFromCenter = { // offset from view, distance view has to change by these x and y to center the node
        x: viewCenter.x - options.position.x,
        y: viewCenter.y - options.position.y
      };
      this.targetTranslation = {
        x: this.sourceTranslation.x + distanceFromCenter.x * this.targetScale + options.offset.x,
        y: this.sourceTranslation.y + distanceFromCenter.y * this.targetScale + options.offset.y
      };

      // if the time is set to 0, don't do an animation
      if (options.animation.duration === 0) {
        if (this.lockedOnNodeId != undefined) {
          this.viewFunction = this._lockedRedraw.bind(this);
          this.body.emitter.on("initRedraw", this.viewFunction);
        } else {
          this.body.view.scale = this.targetScale;
          this.body.view.translation = this.targetTranslation;
          this.body.emitter.emit("_requestRedraw");
        }
      } else {
        this.animationSpeed = 1 / (60 * options.animation.duration * 0.001) || 1 / 60; // 60 for 60 seconds, 0.001 for milli's
        this.animationEasingFunction = options.animation.easingFunction;

        this.viewFunction = this._transitionRedraw.bind(this);
        this.body.emitter.on("initRedraw", this.viewFunction);
        this.body.emitter.emit("_startRendering");
      }
    }

    /**
     * used to animate smoothly by hijacking the redraw function.
     * @private
     */

  }, {
    key: '_lockedRedraw',
    value: function _lockedRedraw() {
      var nodePosition = { x: this.body.nodes[this.lockedOnNodeId].x, y: this.body.nodes[this.lockedOnNodeId].y };
      var viewCenter = this.canvas.DOMtoCanvas({ x: 0.5 * this.canvas.frame.canvas.clientWidth, y: 0.5 * this.canvas.frame.canvas.clientHeight });
      var distanceFromCenter = { // offset from view, distance view has to change by these x and y to center the node
        x: viewCenter.x - nodePosition.x,
        y: viewCenter.y - nodePosition.y
      };
      var sourceTranslation = this.body.view.translation;
      var targetTranslation = {
        x: sourceTranslation.x + distanceFromCenter.x * this.body.view.scale + this.lockedOnNodeOffset.x,
        y: sourceTranslation.y + distanceFromCenter.y * this.body.view.scale + this.lockedOnNodeOffset.y
      };

      this.body.view.translation = targetTranslation;
    }

    /**
     * Resets state of a locked on Node
     */

  }, {
    key: 'releaseNode',
    value: function releaseNode() {
      if (this.lockedOnNodeId !== undefined && this.viewFunction !== undefined) {
        this.body.emitter.off("initRedraw", this.viewFunction);
        this.lockedOnNodeId = undefined;
        this.lockedOnNodeOffset = undefined;
      }
    }

    /**
     * @param {boolean} [finished=false]
     * @private
     */

  }, {
    key: '_transitionRedraw',
    value: function _transitionRedraw() {
      var finished = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

      this.easingTime += this.animationSpeed;
      this.easingTime = finished === true ? 1.0 : this.easingTime;

      var progress = util.easingFunctions[this.animationEasingFunction](this.easingTime);

      this.body.view.scale = this.sourceScale + (this.targetScale - this.sourceScale) * progress;
      this.body.view.translation = {
        x: this.sourceTranslation.x + (this.targetTranslation.x - this.sourceTranslation.x) * progress,
        y: this.sourceTranslation.y + (this.targetTranslation.y - this.sourceTranslation.y) * progress
      };

      // cleanup
      if (this.easingTime >= 1.0) {
        this.body.emitter.off("initRedraw", this.viewFunction);
        this.easingTime = 0;
        if (this.lockedOnNodeId != undefined) {
          this.viewFunction = this._lockedRedraw.bind(this);
          this.body.emitter.on("initRedraw", this.viewFunction);
        }
        this.body.emitter.emit("animationFinished");
      }
    }

    /**
     *
     * @returns {number}
     */

  }, {
    key: 'getScale',
    value: function getScale() {
      return this.body.view.scale;
    }

    /**
     *
     * @returns {{x: number, y: number}}
     */

  }, {
    key: 'getViewPosition',
    value: function getViewPosition() {
      return this.canvas.DOMtoCanvas({ x: 0.5 * this.canvas.frame.canvas.clientWidth, y: 0.5 * this.canvas.frame.canvas.clientHeight });
    }
  }]);
  return View;
}();

exports['default'] = View;

/***/ }),
/* 232 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var NavigationHandler = __webpack_require__(233)['default'];
var Popup = __webpack_require__(104)['default'];

/**
 * Handler for interactions
 */

var InteractionHandler = function () {
  /**
   * @param {Object} body
   * @param {Canvas} canvas
   * @param {SelectionHandler} selectionHandler
   */
  function InteractionHandler(body, canvas, selectionHandler) {
    (0, _classCallCheck3['default'])(this, InteractionHandler);

    this.body = body;
    this.canvas = canvas;
    this.selectionHandler = selectionHandler;
    this.navigationHandler = new NavigationHandler(body, canvas);

    // bind the events from hammer to functions in this object
    this.body.eventListeners.onTap = this.onTap.bind(this);
    this.body.eventListeners.onTouch = this.onTouch.bind(this);
    this.body.eventListeners.onDoubleTap = this.onDoubleTap.bind(this);
    this.body.eventListeners.onHold = this.onHold.bind(this);
    this.body.eventListeners.onDragStart = this.onDragStart.bind(this);
    this.body.eventListeners.onDrag = this.onDrag.bind(this);
    this.body.eventListeners.onDragEnd = this.onDragEnd.bind(this);
    this.body.eventListeners.onMouseWheel = this.onMouseWheel.bind(this);
    this.body.eventListeners.onPinch = this.onPinch.bind(this);
    this.body.eventListeners.onMouseMove = this.onMouseMove.bind(this);
    this.body.eventListeners.onRelease = this.onRelease.bind(this);
    this.body.eventListeners.onContext = this.onContext.bind(this);

    this.touchTime = 0;
    this.drag = {};
    this.pinch = {};
    this.popup = undefined;
    this.popupObj = undefined;
    this.popupTimer = undefined;

    this.body.functions.getPointer = this.getPointer.bind(this);

    this.options = {};
    this.defaultOptions = {
      dragNodes: true,
      dragView: true,
      hover: false,
      keyboard: {
        enabled: false,
        speed: { x: 10, y: 10, zoom: 0.02 },
        bindToWindow: true
      },
      navigationButtons: false,
      tooltipDelay: 300,
      zoomView: true
    };
    util.extend(this.options, this.defaultOptions);

    this.bindEventListeners();
  }

  /**
   * Binds event listeners
   */


  (0, _createClass3['default'])(InteractionHandler, [{
    key: 'bindEventListeners',
    value: function bindEventListeners() {
      var _this = this;

      this.body.emitter.on('destroy', function () {
        clearTimeout(_this.popupTimer);
        delete _this.body.functions.getPointer;
      });
    }

    /**
     *
     * @param {Object} options
     */

  }, {
    key: 'setOptions',
    value: function setOptions(options) {
      if (options !== undefined) {
        // extend all but the values in fields
        var fields = ['hideEdgesOnDrag', 'hideNodesOnDrag', 'keyboard', 'multiselect', 'selectable', 'selectConnectedEdges'];
        util.selectiveNotDeepExtend(fields, this.options, options);

        // merge the keyboard options in.
        util.mergeOptions(this.options, options, 'keyboard');

        if (options.tooltip) {
          util.extend(this.options.tooltip, options.tooltip);
          if (options.tooltip.color) {
            this.options.tooltip.color = util.parseColor(options.tooltip.color);
          }
        }
      }

      this.navigationHandler.setOptions(this.options);
    }

    /**
     * Get the pointer location from a touch location
     * @param {{x: number, y: number}} touch
     * @return {{x: number, y: number}} pointer
     * @private
     */

  }, {
    key: 'getPointer',
    value: function getPointer(touch) {
      return {
        x: touch.x - util.getAbsoluteLeft(this.canvas.frame.canvas),
        y: touch.y - util.getAbsoluteTop(this.canvas.frame.canvas)
      };
    }

    /**
     * On start of a touch gesture, store the pointer
     * @param {Event}  event   The event
     * @private
     */

  }, {
    key: 'onTouch',
    value: function onTouch(event) {
      if (new Date().valueOf() - this.touchTime > 50) {
        this.drag.pointer = this.getPointer(event.center);
        this.drag.pinched = false;
        this.pinch.scale = this.body.view.scale;
        // to avoid double fireing of this event because we have two hammer instances. (on canvas and on frame)
        this.touchTime = new Date().valueOf();
      }
    }

    /**
     * handle tap/click event: select/unselect a node
     * @param {Event} event
     * @private
     */

  }, {
    key: 'onTap',
    value: function onTap(event) {
      var pointer = this.getPointer(event.center);
      var multiselect = this.selectionHandler.options.multiselect && (event.changedPointers[0].ctrlKey || event.changedPointers[0].metaKey);

      this.checkSelectionChanges(pointer, event, multiselect);
      this.selectionHandler._generateClickEvent('click', event, pointer);
    }

    /**
     * handle doubletap event
     * @param {Event} event
     * @private
     */

  }, {
    key: 'onDoubleTap',
    value: function onDoubleTap(event) {
      var pointer = this.getPointer(event.center);
      this.selectionHandler._generateClickEvent('doubleClick', event, pointer);
    }

    /**
     * handle long tap event: multi select nodes
     * @param {Event} event
     * @private
     */

  }, {
    key: 'onHold',
    value: function onHold(event) {
      var pointer = this.getPointer(event.center);
      var multiselect = this.selectionHandler.options.multiselect;

      this.checkSelectionChanges(pointer, event, multiselect);

      this.selectionHandler._generateClickEvent('click', event, pointer);
      this.selectionHandler._generateClickEvent('hold', event, pointer);
    }

    /**
     * handle the release of the screen
     *
     * @param {Event} event
     * @private
     */

  }, {
    key: 'onRelease',
    value: function onRelease(event) {
      if (new Date().valueOf() - this.touchTime > 10) {
        var pointer = this.getPointer(event.center);
        this.selectionHandler._generateClickEvent('release', event, pointer);
        // to avoid double fireing of this event because we have two hammer instances. (on canvas and on frame)
        this.touchTime = new Date().valueOf();
      }
    }

    /**
     *
     * @param {Event} event
     */

  }, {
    key: 'onContext',
    value: function onContext(event) {
      var pointer = this.getPointer({ x: event.clientX, y: event.clientY });
      this.selectionHandler._generateClickEvent('oncontext', event, pointer);
    }

    /**
     * Select and deselect nodes depending current selection change.
     *
     * For changing nodes, select/deselect events are fired.
     *
     * NOTE: For a given edge, if one connecting node is deselected and with the same
     *       click the other node is selected, no events for the edge will fire.
     *       It was selected and it will remain selected.
     *
     * TODO: This is all SelectionHandler calls; the method should be moved to there.
     *
     * @param {{x: number, y: number}} pointer
     * @param {Event} event
     * @param {boolean} [add=false]
     */

  }, {
    key: 'checkSelectionChanges',
    value: function checkSelectionChanges(pointer, event) {
      var add = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

      var previousSelection = this.selectionHandler.getSelection();
      var selected = false;
      if (add === true) {
        selected = this.selectionHandler.selectAdditionalOnPoint(pointer);
      } else {
        selected = this.selectionHandler.selectOnPoint(pointer);
      }
      var currentSelection = this.selectionHandler.getSelection();

      // See NOTE in method comment for the reason to do it like this
      var deselectedItems = this._determineDifference(previousSelection, currentSelection);
      var selectedItems = this._determineDifference(currentSelection, previousSelection);

      if (deselectedItems.edges.length > 0) {
        this.selectionHandler._generateClickEvent('deselectEdge', event, pointer, previousSelection);
        selected = true;
      }

      if (deselectedItems.nodes.length > 0) {
        this.selectionHandler._generateClickEvent('deselectNode', event, pointer, previousSelection);
        selected = true;
      }

      if (selectedItems.nodes.length > 0) {
        this.selectionHandler._generateClickEvent('selectNode', event, pointer);
        selected = true;
      }

      if (selectedItems.edges.length > 0) {
        this.selectionHandler._generateClickEvent('selectEdge', event, pointer);
        selected = true;
      }

      // fire the select event if anything has been selected or deselected
      if (selected === true) {
        // select or unselect
        this.selectionHandler._generateClickEvent('select', event, pointer);
      }
    }

    /**
     * Remove all node and edge id's from the first set that are present in the second one.
     *
     * @param {{nodes: Array.<Node>, edges: Array.<vis.Edge>}} firstSet
     * @param {{nodes: Array.<Node>, edges: Array.<vis.Edge>}} secondSet
     * @returns {{nodes: Array.<Node>, edges: Array.<vis.Edge>}}
     * @private
     */

  }, {
    key: '_determineDifference',
    value: function _determineDifference(firstSet, secondSet) {
      var arrayDiff = function arrayDiff(firstArr, secondArr) {
        var result = [];

        for (var i = 0; i < firstArr.length; i++) {
          var value = firstArr[i];
          if (secondArr.indexOf(value) === -1) {
            result.push(value);
          }
        }

        return result;
      };

      return {
        nodes: arrayDiff(firstSet.nodes, secondSet.nodes),
        edges: arrayDiff(firstSet.edges, secondSet.edges)
      };
    }

    /**
     * This function is called by onDragStart.
     * It is separated out because we can then overload it for the datamanipulation system.
     *
     * @param {Event} event
     * @private
     */

  }, {
    key: 'onDragStart',
    value: function onDragStart(event) {
      //in case the touch event was triggered on an external div, do the initial touch now.
      if (this.drag.pointer === undefined) {
        this.onTouch(event);
      }

      // note: drag.pointer is set in onTouch to get the initial touch location
      var node = this.selectionHandler.getNodeAt(this.drag.pointer);

      this.drag.dragging = true;
      this.drag.selection = [];
      this.drag.translation = util.extend({}, this.body.view.translation); // copy the object
      this.drag.nodeId = undefined;

      if (node !== undefined && this.options.dragNodes === true) {
        this.drag.nodeId = node.id;
        // select the clicked node if not yet selected
        if (node.isSelected() === false) {
          this.selectionHandler.unselectAll();
          this.selectionHandler.selectObject(node);
        }

        // after select to contain the node
        this.selectionHandler._generateClickEvent('dragStart', event, this.drag.pointer);

        var selection = this.selectionHandler.selectionObj.nodes;
        // create an array with the selected nodes and their original location and status
        for (var nodeId in selection) {
          if (selection.hasOwnProperty(nodeId)) {
            var object = selection[nodeId];
            var s = {
              id: object.id,
              node: object,

              // store original x, y, xFixed and yFixed, make the node temporarily Fixed
              x: object.x,
              y: object.y,
              xFixed: object.options.fixed.x,
              yFixed: object.options.fixed.y
            };

            object.options.fixed.x = true;
            object.options.fixed.y = true;

            this.drag.selection.push(s);
          }
        }
      } else {
        // fallback if no node is selected and thus the view is dragged.
        this.selectionHandler._generateClickEvent('dragStart', event, this.drag.pointer, undefined, true);
      }
    }

    /**
     * handle drag event
     * @param {Event} event
     * @private
     */

  }, {
    key: 'onDrag',
    value: function onDrag(event) {
      var _this2 = this;

      if (this.drag.pinched === true) {
        return;
      }

      // remove the focus on node if it is focussed on by the focusOnNode
      this.body.emitter.emit('unlockNode');

      var pointer = this.getPointer(event.center);

      var selection = this.drag.selection;
      if (selection && selection.length && this.options.dragNodes === true) {
        this.selectionHandler._generateClickEvent('dragging', event, pointer);

        // calculate delta's and new location
        var deltaX = pointer.x - this.drag.pointer.x;
        var deltaY = pointer.y - this.drag.pointer.y;

        // update position of all selected nodes
        selection.forEach(function (selection) {
          var node = selection.node;
          // only move the node if it was not fixed initially
          if (selection.xFixed === false) {
            node.x = _this2.canvas._XconvertDOMtoCanvas(_this2.canvas._XconvertCanvasToDOM(selection.x) + deltaX);
          }
          // only move the node if it was not fixed initially
          if (selection.yFixed === false) {
            node.y = _this2.canvas._YconvertDOMtoCanvas(_this2.canvas._YconvertCanvasToDOM(selection.y) + deltaY);
          }
        });

        // start the simulation of the physics
        this.body.emitter.emit('startSimulation');
      } else {
        // move the network
        if (this.options.dragView === true) {
          this.selectionHandler._generateClickEvent('dragging', event, pointer, undefined, true);

          // if the drag was not started properly because the click started outside the network div, start it now.
          if (this.drag.pointer === undefined) {
            this.onDragStart(event);
            return;
          }
          var diffX = pointer.x - this.drag.pointer.x;
          var diffY = pointer.y - this.drag.pointer.y;

          this.body.view.translation = { x: this.drag.translation.x + diffX, y: this.drag.translation.y + diffY };
          this.body.emitter.emit('_requestRedraw');
        }
      }
    }

    /**
     * handle drag start event
     * @param {Event} event
     * @private
     */

  }, {
    key: 'onDragEnd',
    value: function onDragEnd(event) {
      this.drag.dragging = false;
      var selection = this.drag.selection;
      if (selection && selection.length) {
        selection.forEach(function (s) {
          // restore original xFixed and yFixed
          s.node.options.fixed.x = s.xFixed;
          s.node.options.fixed.y = s.yFixed;
        });
        this.selectionHandler._generateClickEvent('dragEnd', event, this.getPointer(event.center));
        this.body.emitter.emit('startSimulation');
      } else {
        this.selectionHandler._generateClickEvent('dragEnd', event, this.getPointer(event.center), undefined, true);
        this.body.emitter.emit('_requestRedraw');
      }
    }

    /**
     * Handle pinch event
     * @param {Event}  event   The event
     * @private
     */

  }, {
    key: 'onPinch',
    value: function onPinch(event) {
      var pointer = this.getPointer(event.center);

      this.drag.pinched = true;
      if (this.pinch['scale'] === undefined) {
        this.pinch.scale = 1;
      }

      // TODO: enabled moving while pinching?
      var scale = this.pinch.scale * event.scale;
      this.zoom(scale, pointer);
    }

    /**
     * Zoom the network in or out
     * @param {number} scale a number around 1, and between 0.01 and 10
     * @param {{x: number, y: number}} pointer    Position on screen
     * @private
     */

  }, {
    key: 'zoom',
    value: function zoom(scale, pointer) {
      if (this.options.zoomView === true) {
        var scaleOld = this.body.view.scale;
        if (scale < 0.00001) {
          scale = 0.00001;
        }
        if (scale > 10) {
          scale = 10;
        }

        var preScaleDragPointer = undefined;
        if (this.drag !== undefined) {
          if (this.drag.dragging === true) {
            preScaleDragPointer = this.canvas.DOMtoCanvas(this.drag.pointer);
          }
        }
        // + this.canvas.frame.canvas.clientHeight / 2
        var translation = this.body.view.translation;

        var scaleFrac = scale / scaleOld;
        var tx = (1 - scaleFrac) * pointer.x + translation.x * scaleFrac;
        var ty = (1 - scaleFrac) * pointer.y + translation.y * scaleFrac;

        this.body.view.scale = scale;
        this.body.view.translation = { x: tx, y: ty };

        if (preScaleDragPointer != undefined) {
          var postScaleDragPointer = this.canvas.canvasToDOM(preScaleDragPointer);
          this.drag.pointer.x = postScaleDragPointer.x;
          this.drag.pointer.y = postScaleDragPointer.y;
        }

        this.body.emitter.emit('_requestRedraw');

        if (scaleOld < scale) {
          this.body.emitter.emit('zoom', { direction: '+', scale: this.body.view.scale, pointer: pointer });
        } else {
          this.body.emitter.emit('zoom', { direction: '-', scale: this.body.view.scale, pointer: pointer });
        }
      }
    }

    /**
     * Event handler for mouse wheel event, used to zoom the timeline
     * See http://adomas.org/javascript-mouse-wheel/
     *     https://github.com/EightMedia/hammer.js/issues/256
     * @param {MouseEvent}  event
     * @private
     */

  }, {
    key: 'onMouseWheel',
    value: function onMouseWheel(event) {
      if (this.options.zoomView === true) {
        // retrieve delta
        var delta = 0;
        if (event.wheelDelta) {
          /* IE/Opera. */
          delta = event.wheelDelta / 120;
        } else if (event.detail) {
          /* Mozilla case. */
          // In Mozilla, sign of delta is different than in IE.
          // Also, delta is multiple of 3.
          delta = -event.detail / 3;
        }

        // If delta is nonzero, handle it.
        // Basically, delta is now positive if wheel was scrolled up,
        // and negative, if wheel was scrolled down.
        if (delta !== 0) {

          // calculate the new scale
          var scale = this.body.view.scale;
          var zoom = delta / 10;
          if (delta < 0) {
            zoom = zoom / (1 - zoom);
          }
          scale *= 1 + zoom;

          // calculate the pointer location
          var pointer = this.getPointer({ x: event.clientX, y: event.clientY });

          // apply the new scale
          this.zoom(scale, pointer);
        }

        // Prevent default actions caused by mouse wheel.
        event.preventDefault();
      }
    }

    /**
     * Mouse move handler for checking whether the title moves over a node with a title.
     * @param  {Event} event
     * @private
     */

  }, {
    key: 'onMouseMove',
    value: function onMouseMove(event) {
      var _this3 = this;

      var pointer = this.getPointer({ x: event.clientX, y: event.clientY });
      var popupVisible = false;

      // check if the previously selected node is still selected
      if (this.popup !== undefined) {
        if (this.popup.hidden === false) {
          this._checkHidePopup(pointer);
        }

        // if the popup was not hidden above
        if (this.popup.hidden === false) {
          popupVisible = true;
          this.popup.setPosition(pointer.x + 3, pointer.y - 5);
          this.popup.show();
        }
      }

      // if we bind the keyboard to the div, we have to highlight it to use it. This highlights it on mouse over.
      if (this.options.keyboard.bindToWindow === false && this.options.keyboard.enabled === true) {
        this.canvas.frame.focus();
      }

      // start a timeout that will check if the mouse is positioned above an element
      if (popupVisible === false) {
        if (this.popupTimer !== undefined) {
          clearInterval(this.popupTimer); // stop any running calculationTimer
          this.popupTimer = undefined;
        }
        if (!this.drag.dragging) {
          this.popupTimer = setTimeout(function () {
            return _this3._checkShowPopup(pointer);
          }, this.options.tooltipDelay);
        }
      }

      // adding hover highlights
      if (this.options.hover === true) {
        this.selectionHandler.hoverObject(event, pointer);
      }
    }

    /**
     * Check if there is an element on the given position in the network
     * (a node or edge). If so, and if this element has a title,
     * show a popup window with its title.
     *
     * @param {{x:number, y:number}} pointer
     * @private
     */

  }, {
    key: '_checkShowPopup',
    value: function _checkShowPopup(pointer) {
      var x = this.canvas._XconvertDOMtoCanvas(pointer.x);
      var y = this.canvas._YconvertDOMtoCanvas(pointer.y);
      var pointerObj = {
        left: x,
        top: y,
        right: x,
        bottom: y
      };

      var previousPopupObjId = this.popupObj === undefined ? undefined : this.popupObj.id;
      var nodeUnderCursor = false;
      var popupType = 'node';

      // check if a node is under the cursor.
      if (this.popupObj === undefined) {
        // search the nodes for overlap, select the top one in case of multiple nodes
        var nodeIndices = this.body.nodeIndices;
        var nodes = this.body.nodes;
        var node = void 0;
        var overlappingNodes = [];
        for (var i = 0; i < nodeIndices.length; i++) {
          node = nodes[nodeIndices[i]];
          if (node.isOverlappingWith(pointerObj) === true) {
            if (node.getTitle() !== undefined) {
              overlappingNodes.push(nodeIndices[i]);
            }
          }
        }

        if (overlappingNodes.length > 0) {
          // if there are overlapping nodes, select the last one, this is the one which is drawn on top of the others
          this.popupObj = nodes[overlappingNodes[overlappingNodes.length - 1]];
          // if you hover over a node, the title of the edge is not supposed to be shown.
          nodeUnderCursor = true;
        }
      }

      if (this.popupObj === undefined && nodeUnderCursor === false) {
        // search the edges for overlap
        var edgeIndices = this.body.edgeIndices;
        var edges = this.body.edges;
        var edge = void 0;
        var overlappingEdges = [];
        for (var _i = 0; _i < edgeIndices.length; _i++) {
          edge = edges[edgeIndices[_i]];
          if (edge.isOverlappingWith(pointerObj) === true) {
            if (edge.connected === true && edge.getTitle() !== undefined) {
              overlappingEdges.push(edgeIndices[_i]);
            }
          }
        }

        if (overlappingEdges.length > 0) {
          this.popupObj = edges[overlappingEdges[overlappingEdges.length - 1]];
          popupType = 'edge';
        }
      }

      if (this.popupObj !== undefined) {
        // show popup message window
        if (this.popupObj.id !== previousPopupObjId) {
          if (this.popup === undefined) {
            this.popup = new Popup(this.canvas.frame);
          }

          this.popup.popupTargetType = popupType;
          this.popup.popupTargetId = this.popupObj.id;

          // adjust a small offset such that the mouse cursor is located in the
          // bottom left location of the popup, and you can easily move over the
          // popup area
          this.popup.setPosition(pointer.x + 3, pointer.y - 5);
          this.popup.setText(this.popupObj.getTitle());
          this.popup.show();
          this.body.emitter.emit('showPopup', this.popupObj.id);
        }
      } else {
        if (this.popup !== undefined) {
          this.popup.hide();
          this.body.emitter.emit('hidePopup');
        }
      }
    }

    /**
     * Check if the popup must be hidden, which is the case when the mouse is no
     * longer hovering on the object
     * @param {{x:number, y:number}} pointer
     * @private
     */

  }, {
    key: '_checkHidePopup',
    value: function _checkHidePopup(pointer) {
      var pointerObj = this.selectionHandler._pointerToPositionObject(pointer);

      var stillOnObj = false;
      if (this.popup.popupTargetType === 'node') {
        if (this.body.nodes[this.popup.popupTargetId] !== undefined) {
          stillOnObj = this.body.nodes[this.popup.popupTargetId].isOverlappingWith(pointerObj);

          // if the mouse is still one the node, we have to check if it is not also on one that is drawn on top of it.
          // we initially only check stillOnObj because this is much faster.
          if (stillOnObj === true) {
            var overNode = this.selectionHandler.getNodeAt(pointer);
            stillOnObj = overNode === undefined ? false : overNode.id === this.popup.popupTargetId;
          }
        }
      } else {
        if (this.selectionHandler.getNodeAt(pointer) === undefined) {
          if (this.body.edges[this.popup.popupTargetId] !== undefined) {
            stillOnObj = this.body.edges[this.popup.popupTargetId].isOverlappingWith(pointerObj);
          }
        }
      }

      if (stillOnObj === false) {
        this.popupObj = undefined;
        this.popup.hide();
        this.body.emitter.emit('hidePopup');
      }
    }
  }]);
  return InteractionHandler;
}();

exports['default'] = InteractionHandler;

/***/ }),
/* 233 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var Hammer = __webpack_require__(10);
var hammerUtil = __webpack_require__(37);
var keycharm = __webpack_require__(35);

/**
 * Navigation Handler
 */

var NavigationHandler = function () {
  /**
   * @param {Object} body
   * @param {Canvas} canvas
   */
  function NavigationHandler(body, canvas) {
    var _this = this;

    (0, _classCallCheck3['default'])(this, NavigationHandler);

    this.body = body;
    this.canvas = canvas;

    this.iconsCreated = false;
    this.navigationHammers = [];
    this.boundFunctions = {};
    this.touchTime = 0;
    this.activated = false;

    this.body.emitter.on("activate", function () {
      _this.activated = true;_this.configureKeyboardBindings();
    });
    this.body.emitter.on("deactivate", function () {
      _this.activated = false;_this.configureKeyboardBindings();
    });
    this.body.emitter.on("destroy", function () {
      if (_this.keycharm !== undefined) {
        _this.keycharm.destroy();
      }
    });

    this.options = {};
  }

  /**
   *
   * @param {Object} options
   */


  (0, _createClass3['default'])(NavigationHandler, [{
    key: 'setOptions',
    value: function setOptions(options) {
      if (options !== undefined) {
        this.options = options;
        this.create();
      }
    }

    /**
     * Creates or refreshes navigation and sets key bindings
     */

  }, {
    key: 'create',
    value: function create() {
      if (this.options.navigationButtons === true) {
        if (this.iconsCreated === false) {
          this.loadNavigationElements();
        }
      } else if (this.iconsCreated === true) {
        this.cleanNavigation();
      }

      this.configureKeyboardBindings();
    }

    /**
     * Cleans up previous navigation items
     */

  }, {
    key: 'cleanNavigation',
    value: function cleanNavigation() {
      // clean hammer bindings
      if (this.navigationHammers.length != 0) {
        for (var i = 0; i < this.navigationHammers.length; i++) {
          this.navigationHammers[i].destroy();
        }
        this.navigationHammers = [];
      }

      // clean up previous navigation items
      if (this.navigationDOM && this.navigationDOM['wrapper'] && this.navigationDOM['wrapper'].parentNode) {
        this.navigationDOM['wrapper'].parentNode.removeChild(this.navigationDOM['wrapper']);
      }

      this.iconsCreated = false;
    }

    /**
     * Creation of the navigation controls nodes. They are drawn over the rest of the nodes and are not affected by scale and translation
     * they have a triggerFunction which is called on click. If the position of the navigation controls is dependent
     * on this.frame.canvas.clientWidth or this.frame.canvas.clientHeight, we flag horizontalAlignLeft and verticalAlignTop false.
     * This means that the location will be corrected by the _relocateNavigation function on a size change of the canvas.
     *
     * @private
     */

  }, {
    key: 'loadNavigationElements',
    value: function loadNavigationElements() {
      var _this2 = this;

      this.cleanNavigation();

      this.navigationDOM = {};
      var navigationDivs = ['up', 'down', 'left', 'right', 'zoomIn', 'zoomOut', 'zoomExtends'];
      var navigationDivActions = ['_moveUp', '_moveDown', '_moveLeft', '_moveRight', '_zoomIn', '_zoomOut', '_fit'];

      this.navigationDOM['wrapper'] = document.createElement('div');
      this.navigationDOM['wrapper'].className = 'vis-navigation';
      this.canvas.frame.appendChild(this.navigationDOM['wrapper']);

      for (var i = 0; i < navigationDivs.length; i++) {
        this.navigationDOM[navigationDivs[i]] = document.createElement('div');
        this.navigationDOM[navigationDivs[i]].className = 'vis-button vis-' + navigationDivs[i];
        this.navigationDOM['wrapper'].appendChild(this.navigationDOM[navigationDivs[i]]);

        var hammer = new Hammer(this.navigationDOM[navigationDivs[i]]);
        if (navigationDivActions[i] === "_fit") {
          hammerUtil.onTouch(hammer, this._fit.bind(this));
        } else {
          hammerUtil.onTouch(hammer, this.bindToRedraw.bind(this, navigationDivActions[i]));
        }

        this.navigationHammers.push(hammer);
      }

      // use a hammer for the release so we do not require the one used in the rest of the network
      // the one the rest uses can be overloaded by the manipulation system.
      var hammerFrame = new Hammer(this.canvas.frame);
      hammerUtil.onRelease(hammerFrame, function () {
        _this2._stopMovement();
      });
      this.navigationHammers.push(hammerFrame);

      this.iconsCreated = true;
    }

    /**
     *
     * @param {string} action
     */

  }, {
    key: 'bindToRedraw',
    value: function bindToRedraw(action) {
      if (this.boundFunctions[action] === undefined) {
        this.boundFunctions[action] = this[action].bind(this);
        this.body.emitter.on("initRedraw", this.boundFunctions[action]);
        this.body.emitter.emit("_startRendering");
      }
    }

    /**
     *
     * @param {string} action
     */

  }, {
    key: 'unbindFromRedraw',
    value: function unbindFromRedraw(action) {
      if (this.boundFunctions[action] !== undefined) {
        this.body.emitter.off("initRedraw", this.boundFunctions[action]);
        this.body.emitter.emit("_stopRendering");
        delete this.boundFunctions[action];
      }
    }

    /**
     * this stops all movement induced by the navigation buttons
     *
     * @private
     */

  }, {
    key: '_fit',
    value: function _fit() {
      if (new Date().valueOf() - this.touchTime > 700) {
        // TODO: fix ugly hack to avoid hammer's double fireing of event (because we use release?)
        this.body.emitter.emit("fit", { duration: 700 });
        this.touchTime = new Date().valueOf();
      }
    }

    /**
     * this stops all movement induced by the navigation buttons
     *
     * @private
     */

  }, {
    key: '_stopMovement',
    value: function _stopMovement() {
      for (var boundAction in this.boundFunctions) {
        if (this.boundFunctions.hasOwnProperty(boundAction)) {
          this.body.emitter.off("initRedraw", this.boundFunctions[boundAction]);
          this.body.emitter.emit("_stopRendering");
        }
      }
      this.boundFunctions = {};
    }
    /**
     *
     * @private
     */

  }, {
    key: '_moveUp',
    value: function _moveUp() {
      this.body.view.translation.y += this.options.keyboard.speed.y;
    }
    /**
     *
     * @private
     */

  }, {
    key: '_moveDown',
    value: function _moveDown() {
      this.body.view.translation.y -= this.options.keyboard.speed.y;
    }
    /**
     *
     * @private
     */

  }, {
    key: '_moveLeft',
    value: function _moveLeft() {
      this.body.view.translation.x += this.options.keyboard.speed.x;
    }
    /**
     *
     * @private
     */

  }, {
    key: '_moveRight',
    value: function _moveRight() {
      this.body.view.translation.x -= this.options.keyboard.speed.x;
    }
    /**
     *
     * @private
     */

  }, {
    key: '_zoomIn',
    value: function _zoomIn() {
      var scaleOld = this.body.view.scale;
      var scale = this.body.view.scale * (1 + this.options.keyboard.speed.zoom);
      var translation = this.body.view.translation;
      var scaleFrac = scale / scaleOld;
      var tx = (1 - scaleFrac) * this.canvas.canvasViewCenter.x + translation.x * scaleFrac;
      var ty = (1 - scaleFrac) * this.canvas.canvasViewCenter.y + translation.y * scaleFrac;

      this.body.view.scale = scale;
      this.body.view.translation = { x: tx, y: ty };
      this.body.emitter.emit('zoom', { direction: '+', scale: this.body.view.scale, pointer: null });
    }

    /**
     *
     * @private
     */

  }, {
    key: '_zoomOut',
    value: function _zoomOut() {
      var scaleOld = this.body.view.scale;
      var scale = this.body.view.scale / (1 + this.options.keyboard.speed.zoom);
      var translation = this.body.view.translation;
      var scaleFrac = scale / scaleOld;
      var tx = (1 - scaleFrac) * this.canvas.canvasViewCenter.x + translation.x * scaleFrac;
      var ty = (1 - scaleFrac) * this.canvas.canvasViewCenter.y + translation.y * scaleFrac;

      this.body.view.scale = scale;
      this.body.view.translation = { x: tx, y: ty };
      this.body.emitter.emit('zoom', { direction: '-', scale: this.body.view.scale, pointer: null });
    }

    /**
     * bind all keys using keycharm.
     */

  }, {
    key: 'configureKeyboardBindings',
    value: function configureKeyboardBindings() {
      var _this3 = this;

      if (this.keycharm !== undefined) {
        this.keycharm.destroy();
      }

      if (this.options.keyboard.enabled === true) {
        if (this.options.keyboard.bindToWindow === true) {
          this.keycharm = keycharm({ container: window, preventDefault: true });
        } else {
          this.keycharm = keycharm({ container: this.canvas.frame, preventDefault: true });
        }

        this.keycharm.reset();

        if (this.activated === true) {
          this.keycharm.bind("up", function () {
            _this3.bindToRedraw("_moveUp");
          }, "keydown");
          this.keycharm.bind("down", function () {
            _this3.bindToRedraw("_moveDown");
          }, "keydown");
          this.keycharm.bind("left", function () {
            _this3.bindToRedraw("_moveLeft");
          }, "keydown");
          this.keycharm.bind("right", function () {
            _this3.bindToRedraw("_moveRight");
          }, "keydown");
          this.keycharm.bind("=", function () {
            _this3.bindToRedraw("_zoomIn");
          }, "keydown");
          this.keycharm.bind("num+", function () {
            _this3.bindToRedraw("_zoomIn");
          }, "keydown");
          this.keycharm.bind("num-", function () {
            _this3.bindToRedraw("_zoomOut");
          }, "keydown");
          this.keycharm.bind("-", function () {
            _this3.bindToRedraw("_zoomOut");
          }, "keydown");
          this.keycharm.bind("[", function () {
            _this3.bindToRedraw("_zoomOut");
          }, "keydown");
          this.keycharm.bind("]", function () {
            _this3.bindToRedraw("_zoomIn");
          }, "keydown");
          this.keycharm.bind("pageup", function () {
            _this3.bindToRedraw("_zoomIn");
          }, "keydown");
          this.keycharm.bind("pagedown", function () {
            _this3.bindToRedraw("_zoomOut");
          }, "keydown");

          this.keycharm.bind("up", function () {
            _this3.unbindFromRedraw("_moveUp");
          }, "keyup");
          this.keycharm.bind("down", function () {
            _this3.unbindFromRedraw("_moveDown");
          }, "keyup");
          this.keycharm.bind("left", function () {
            _this3.unbindFromRedraw("_moveLeft");
          }, "keyup");
          this.keycharm.bind("right", function () {
            _this3.unbindFromRedraw("_moveRight");
          }, "keyup");
          this.keycharm.bind("=", function () {
            _this3.unbindFromRedraw("_zoomIn");
          }, "keyup");
          this.keycharm.bind("num+", function () {
            _this3.unbindFromRedraw("_zoomIn");
          }, "keyup");
          this.keycharm.bind("num-", function () {
            _this3.unbindFromRedraw("_zoomOut");
          }, "keyup");
          this.keycharm.bind("-", function () {
            _this3.unbindFromRedraw("_zoomOut");
          }, "keyup");
          this.keycharm.bind("[", function () {
            _this3.unbindFromRedraw("_zoomOut");
          }, "keyup");
          this.keycharm.bind("]", function () {
            _this3.unbindFromRedraw("_zoomIn");
          }, "keyup");
          this.keycharm.bind("pageup", function () {
            _this3.unbindFromRedraw("_zoomIn");
          }, "keyup");
          this.keycharm.bind("pagedown", function () {
            _this3.unbindFromRedraw("_zoomOut");
          }, "keyup");
        }
      }
    }
  }]);
  return NavigationHandler;
}();

exports['default'] = NavigationHandler;

/***/ }),
/* 234 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var Node = __webpack_require__(47)['default'];
var Edge = __webpack_require__(74)['default'];

var util = __webpack_require__(2);

/**
 * The handler for selections
 */

var SelectionHandler = function () {
  /**
   * @param {Object} body
   * @param {Canvas} canvas
   */
  function SelectionHandler(body, canvas) {
    var _this = this;

    (0, _classCallCheck3['default'])(this, SelectionHandler);

    this.body = body;
    this.canvas = canvas;
    this.selectionObj = { nodes: [], edges: [] };
    this.hoverObj = { nodes: {}, edges: {} };

    this.options = {};
    this.defaultOptions = {
      multiselect: false,
      selectable: true,
      selectConnectedEdges: true,
      hoverConnectedEdges: true
    };
    util.extend(this.options, this.defaultOptions);

    this.body.emitter.on("_dataChanged", function () {
      _this.updateSelection();
    });
  }

  /**
   *
   * @param {Object} [options]
   */


  (0, _createClass3['default'])(SelectionHandler, [{
    key: 'setOptions',
    value: function setOptions(options) {
      if (options !== undefined) {
        var fields = ['multiselect', 'hoverConnectedEdges', 'selectable', 'selectConnectedEdges'];
        util.selectiveDeepExtend(fields, this.options, options);
      }
    }

    /**
     * handles the selection part of the tap;
     *
     * @param {{x: number, y: number}} pointer
     * @returns {boolean}
     */

  }, {
    key: 'selectOnPoint',
    value: function selectOnPoint(pointer) {
      var selected = false;
      if (this.options.selectable === true) {
        var obj = this.getNodeAt(pointer) || this.getEdgeAt(pointer);

        // unselect after getting the objects in order to restore width and height.
        this.unselectAll();

        if (obj !== undefined) {
          selected = this.selectObject(obj);
        }
        this.body.emitter.emit("_requestRedraw");
      }
      return selected;
    }

    /**
     *
     * @param {{x: number, y: number}} pointer
     * @returns {boolean}
     */

  }, {
    key: 'selectAdditionalOnPoint',
    value: function selectAdditionalOnPoint(pointer) {
      var selectionChanged = false;
      if (this.options.selectable === true) {
        var obj = this.getNodeAt(pointer) || this.getEdgeAt(pointer);

        if (obj !== undefined) {
          selectionChanged = true;
          if (obj.isSelected() === true) {
            this.deselectObject(obj);
          } else {
            this.selectObject(obj);
          }

          this.body.emitter.emit("_requestRedraw");
        }
      }
      return selectionChanged;
    }

    /**
     * Create an object containing the standard fields for an event.
     *
     * @param {Event} event
     * @param {{x: number, y: number}} pointer Object with the x and y screen coordinates of the mouse
     * @returns {{}}
     * @private
     */

  }, {
    key: '_initBaseEvent',
    value: function _initBaseEvent(event, pointer) {
      var properties = {};

      properties['pointer'] = {
        DOM: { x: pointer.x, y: pointer.y },
        canvas: this.canvas.DOMtoCanvas(pointer)
      };
      properties['event'] = event;

      return properties;
    }

    /**
     * Generate an event which the user can catch.
     *
     * This adds some extra data to the event with respect to cursor position and
     * selected nodes and edges.
     *
     * @param {string} eventType                          Name of event to send
     * @param {Event}  event
     * @param {{x: number, y: number}} pointer            Object with the x and y screen coordinates of the mouse
     * @param {Object|undefined} oldSelection             If present, selection state before event occured
     * @param {boolean|undefined} [emptySelection=false]  Indicate if selection data should be passed
     */

  }, {
    key: '_generateClickEvent',
    value: function _generateClickEvent(eventType, event, pointer, oldSelection) {
      var emptySelection = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false;

      var properties = this._initBaseEvent(event, pointer);

      if (emptySelection === true) {
        properties.nodes = [];
        properties.edges = [];
      } else {
        var tmp = this.getSelection();
        properties.nodes = tmp.nodes;
        properties.edges = tmp.edges;
      }

      if (oldSelection !== undefined) {
        properties['previousSelection'] = oldSelection;
      }

      if (eventType == 'click') {
        // For the time being, restrict this functionality to
        // just the click event.
        properties.items = this.getClickedItems(pointer);
      }

      this.body.emitter.emit(eventType, properties);
    }

    /**
     *
     * @param {Object} obj
     * @param {boolean} [highlightEdges=this.options.selectConnectedEdges]
     * @returns {boolean}
     */

  }, {
    key: 'selectObject',
    value: function selectObject(obj) {
      var highlightEdges = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : this.options.selectConnectedEdges;

      if (obj !== undefined) {
        if (obj instanceof Node) {
          if (highlightEdges === true) {
            this._selectConnectedEdges(obj);
          }
        }
        obj.select();
        this._addToSelection(obj);
        return true;
      }
      return false;
    }

    /**
     *
     * @param {Object} obj
     */

  }, {
    key: 'deselectObject',
    value: function deselectObject(obj) {
      if (obj.isSelected() === true) {
        obj.selected = false;
        this._removeFromSelection(obj);
      }
    }

    /**
     * retrieve all nodes overlapping with given object
     * @param {Object} object  An object with parameters left, top, right, bottom
     * @return {number[]}   An array with id's of the overlapping nodes
     * @private
     */

  }, {
    key: '_getAllNodesOverlappingWith',
    value: function _getAllNodesOverlappingWith(object) {
      var overlappingNodes = [];
      var nodes = this.body.nodes;
      for (var i = 0; i < this.body.nodeIndices.length; i++) {
        var nodeId = this.body.nodeIndices[i];
        if (nodes[nodeId].isOverlappingWith(object)) {
          overlappingNodes.push(nodeId);
        }
      }
      return overlappingNodes;
    }

    /**
     * Return a position object in canvasspace from a single point in screenspace
     *
     * @param {{x: number, y: number}} pointer
     * @returns {{left: number, top: number, right: number, bottom: number}}
     * @private
     */

  }, {
    key: '_pointerToPositionObject',
    value: function _pointerToPositionObject(pointer) {
      var canvasPos = this.canvas.DOMtoCanvas(pointer);
      return {
        left: canvasPos.x - 1,
        top: canvasPos.y + 1,
        right: canvasPos.x + 1,
        bottom: canvasPos.y - 1
      };
    }

    /**
     * Get the top node at the passed point (like a click)
     *
     * @param {{x: number, y: number}} pointer
     * @param {boolean} [returnNode=true]
     * @return {Node | undefined} node
     */

  }, {
    key: 'getNodeAt',
    value: function getNodeAt(pointer) {
      var returnNode = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

      // we first check if this is an navigation controls element
      var positionObject = this._pointerToPositionObject(pointer);
      var overlappingNodes = this._getAllNodesOverlappingWith(positionObject);
      // if there are overlapping nodes, select the last one, this is the
      // one which is drawn on top of the others
      if (overlappingNodes.length > 0) {
        if (returnNode === true) {
          return this.body.nodes[overlappingNodes[overlappingNodes.length - 1]];
        } else {
          return overlappingNodes[overlappingNodes.length - 1];
        }
      } else {
        return undefined;
      }
    }

    /**
     * retrieve all edges overlapping with given object, selector is around center
     * @param {Object} object  An object with parameters left, top, right, bottom
     * @param {number[]} overlappingEdges An array with id's of the overlapping nodes
     * @private
     */

  }, {
    key: '_getEdgesOverlappingWith',
    value: function _getEdgesOverlappingWith(object, overlappingEdges) {
      var edges = this.body.edges;
      for (var i = 0; i < this.body.edgeIndices.length; i++) {
        var edgeId = this.body.edgeIndices[i];
        if (edges[edgeId].isOverlappingWith(object)) {
          overlappingEdges.push(edgeId);
        }
      }
    }

    /**
     * retrieve all nodes overlapping with given object
     * @param {Object} object  An object with parameters left, top, right, bottom
     * @return {number[]}   An array with id's of the overlapping nodes
     * @private
     */

  }, {
    key: '_getAllEdgesOverlappingWith',
    value: function _getAllEdgesOverlappingWith(object) {
      var overlappingEdges = [];
      this._getEdgesOverlappingWith(object, overlappingEdges);
      return overlappingEdges;
    }

    /**
     * Get the edges nearest to the passed point (like a click)
     *
     * @param {{x: number, y: number}} pointer
     * @param {boolean} [returnEdge=true]
     * @return {Edge | undefined} node
     */

  }, {
    key: 'getEdgeAt',
    value: function getEdgeAt(pointer) {
      var returnEdge = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

      // Iterate over edges, pick closest within 10
      var canvasPos = this.canvas.DOMtoCanvas(pointer);
      var mindist = 10;
      var overlappingEdge = null;
      var edges = this.body.edges;
      for (var i = 0; i < this.body.edgeIndices.length; i++) {
        var edgeId = this.body.edgeIndices[i];
        var edge = edges[edgeId];
        if (edge.connected) {
          var xFrom = edge.from.x;
          var yFrom = edge.from.y;
          var xTo = edge.to.x;
          var yTo = edge.to.y;
          var dist = edge.edgeType.getDistanceToEdge(xFrom, yFrom, xTo, yTo, canvasPos.x, canvasPos.y);
          if (dist < mindist) {
            overlappingEdge = edgeId;
            mindist = dist;
          }
        }
      }
      if (overlappingEdge !== null) {
        if (returnEdge === true) {
          return this.body.edges[overlappingEdge];
        } else {
          return overlappingEdge;
        }
      } else {
        return undefined;
      }
    }

    /**
     * Add object to the selection array.
     *
     * @param {Object} obj
     * @private
     */

  }, {
    key: '_addToSelection',
    value: function _addToSelection(obj) {
      if (obj instanceof Node) {
        this.selectionObj.nodes[obj.id] = obj;
      } else {
        this.selectionObj.edges[obj.id] = obj;
      }
    }

    /**
     * Add object to the selection array.
     *
     * @param {Object} obj
     * @private
     */

  }, {
    key: '_addToHover',
    value: function _addToHover(obj) {
      if (obj instanceof Node) {
        this.hoverObj.nodes[obj.id] = obj;
      } else {
        this.hoverObj.edges[obj.id] = obj;
      }
    }

    /**
     * Remove a single option from selection.
     *
     * @param {Object} obj
     * @private
     */

  }, {
    key: '_removeFromSelection',
    value: function _removeFromSelection(obj) {
      if (obj instanceof Node) {
        delete this.selectionObj.nodes[obj.id];
        this._unselectConnectedEdges(obj);
      } else {
        delete this.selectionObj.edges[obj.id];
      }
    }

    /**
     * Unselect all. The selectionObj is useful for this.
     */

  }, {
    key: 'unselectAll',
    value: function unselectAll() {
      for (var nodeId in this.selectionObj.nodes) {
        if (this.selectionObj.nodes.hasOwnProperty(nodeId)) {
          this.selectionObj.nodes[nodeId].unselect();
        }
      }
      for (var edgeId in this.selectionObj.edges) {
        if (this.selectionObj.edges.hasOwnProperty(edgeId)) {
          this.selectionObj.edges[edgeId].unselect();
        }
      }

      this.selectionObj = { nodes: {}, edges: {} };
    }

    /**
     * return the number of selected nodes
     *
     * @returns {number}
     * @private
     */

  }, {
    key: '_getSelectedNodeCount',
    value: function _getSelectedNodeCount() {
      var count = 0;
      for (var nodeId in this.selectionObj.nodes) {
        if (this.selectionObj.nodes.hasOwnProperty(nodeId)) {
          count += 1;
        }
      }
      return count;
    }

    /**
     * return the selected node
     *
     * @returns {number}
     * @private
     */

  }, {
    key: '_getSelectedNode',
    value: function _getSelectedNode() {
      for (var nodeId in this.selectionObj.nodes) {
        if (this.selectionObj.nodes.hasOwnProperty(nodeId)) {
          return this.selectionObj.nodes[nodeId];
        }
      }
      return undefined;
    }

    /**
     * return the selected edge
     *
     * @returns {number}
     * @private
     */

  }, {
    key: '_getSelectedEdge',
    value: function _getSelectedEdge() {
      for (var edgeId in this.selectionObj.edges) {
        if (this.selectionObj.edges.hasOwnProperty(edgeId)) {
          return this.selectionObj.edges[edgeId];
        }
      }
      return undefined;
    }

    /**
     * return the number of selected edges
     *
     * @returns {number}
     * @private
     */

  }, {
    key: '_getSelectedEdgeCount',
    value: function _getSelectedEdgeCount() {
      var count = 0;
      for (var edgeId in this.selectionObj.edges) {
        if (this.selectionObj.edges.hasOwnProperty(edgeId)) {
          count += 1;
        }
      }
      return count;
    }

    /**
     * return the number of selected objects.
     *
     * @returns {number}
     * @private
     */

  }, {
    key: '_getSelectedObjectCount',
    value: function _getSelectedObjectCount() {
      var count = 0;
      for (var nodeId in this.selectionObj.nodes) {
        if (this.selectionObj.nodes.hasOwnProperty(nodeId)) {
          count += 1;
        }
      }
      for (var edgeId in this.selectionObj.edges) {
        if (this.selectionObj.edges.hasOwnProperty(edgeId)) {
          count += 1;
        }
      }
      return count;
    }

    /**
     * Check if anything is selected
     *
     * @returns {boolean}
     * @private
     */

  }, {
    key: '_selectionIsEmpty',
    value: function _selectionIsEmpty() {
      for (var nodeId in this.selectionObj.nodes) {
        if (this.selectionObj.nodes.hasOwnProperty(nodeId)) {
          return false;
        }
      }
      for (var edgeId in this.selectionObj.edges) {
        if (this.selectionObj.edges.hasOwnProperty(edgeId)) {
          return false;
        }
      }
      return true;
    }

    /**
     * check if one of the selected nodes is a cluster.
     *
     * @returns {boolean}
     * @private
     */

  }, {
    key: '_clusterInSelection',
    value: function _clusterInSelection() {
      for (var nodeId in this.selectionObj.nodes) {
        if (this.selectionObj.nodes.hasOwnProperty(nodeId)) {
          if (this.selectionObj.nodes[nodeId].clusterSize > 1) {
            return true;
          }
        }
      }
      return false;
    }

    /**
     * select the edges connected to the node that is being selected
     *
     * @param {Node} node
     * @private
     */

  }, {
    key: '_selectConnectedEdges',
    value: function _selectConnectedEdges(node) {
      for (var i = 0; i < node.edges.length; i++) {
        var edge = node.edges[i];
        edge.select();
        this._addToSelection(edge);
      }
    }

    /**
     * select the edges connected to the node that is being selected
     *
     * @param {Node} node
     * @private
     */

  }, {
    key: '_hoverConnectedEdges',
    value: function _hoverConnectedEdges(node) {
      for (var i = 0; i < node.edges.length; i++) {
        var edge = node.edges[i];
        edge.hover = true;
        this._addToHover(edge);
      }
    }

    /**
     * unselect the edges connected to the node that is being selected
     *
     * @param {Node} node
     * @private
     */

  }, {
    key: '_unselectConnectedEdges',
    value: function _unselectConnectedEdges(node) {
      for (var i = 0; i < node.edges.length; i++) {
        var edge = node.edges[i];
        edge.unselect();
        this._removeFromSelection(edge);
      }
    }

    /**
     * Remove the highlight from a node or edge, in response to mouse movement
     *
     * @param {Event}  event
     * @param {{x: number, y: number}} pointer object with the x and y screen coordinates of the mouse
     * @param {Node|vis.Edge} object
     * @private
     */

  }, {
    key: 'emitBlurEvent',
    value: function emitBlurEvent(event, pointer, object) {
      var properties = this._initBaseEvent(event, pointer);

      if (object.hover === true) {
        object.hover = false;
        if (object instanceof Node) {
          properties.node = object.id;
          this.body.emitter.emit("blurNode", properties);
        } else {
          properties.edge = object.id;
          this.body.emitter.emit("blurEdge", properties);
        }
      }
    }

    /**
     * Create the highlight for a node or edge, in response to mouse movement
     *
     * @param {Event}  event
     * @param {{x: number, y: number}} pointer object with the x and y screen coordinates of the mouse
     * @param {Node|vis.Edge} object
     * @returns {boolean} hoverChanged
     * @private
     */

  }, {
    key: 'emitHoverEvent',
    value: function emitHoverEvent(event, pointer, object) {
      var properties = this._initBaseEvent(event, pointer);
      var hoverChanged = false;

      if (object.hover === false) {
        object.hover = true;
        this._addToHover(object);
        hoverChanged = true;
        if (object instanceof Node) {
          properties.node = object.id;
          this.body.emitter.emit("hoverNode", properties);
        } else {
          properties.edge = object.id;
          this.body.emitter.emit("hoverEdge", properties);
        }
      }

      return hoverChanged;
    }

    /**
     * Perform actions in response to a mouse movement.
     *
     * @param {Event}  event
     * @param {{x: number, y: number}} pointer | object with the x and y screen coordinates of the mouse
     */

  }, {
    key: 'hoverObject',
    value: function hoverObject(event, pointer) {
      var object = this.getNodeAt(pointer);
      if (object === undefined) {
        object = this.getEdgeAt(pointer);
      }

      var hoverChanged = false;
      // remove all node hover highlights
      for (var nodeId in this.hoverObj.nodes) {
        if (this.hoverObj.nodes.hasOwnProperty(nodeId)) {
          if (object === undefined || object instanceof Node && object.id != nodeId || object instanceof Edge) {
            this.emitBlurEvent(event, pointer, this.hoverObj.nodes[nodeId]);
            delete this.hoverObj.nodes[nodeId];
            hoverChanged = true;
          }
        }
      }

      // removing all edge hover highlights
      for (var edgeId in this.hoverObj.edges) {
        if (this.hoverObj.edges.hasOwnProperty(edgeId)) {
          // if the hover has been changed here it means that the node has been hovered over or off
          // we then do not use the emitBlurEvent method here.
          if (hoverChanged === true) {
            this.hoverObj.edges[edgeId].hover = false;
            delete this.hoverObj.edges[edgeId];
          }
          // if the blur remains the same and the object is undefined (mouse off) or another
          // edge has been hovered, or another node has been hovered we blur the edge.
          else if (object === undefined || object instanceof Edge && object.id != edgeId || object instanceof Node && !object.hover) {
              this.emitBlurEvent(event, pointer, this.hoverObj.edges[edgeId]);
              delete this.hoverObj.edges[edgeId];
              hoverChanged = true;
            }
        }
      }

      if (object !== undefined) {
        hoverChanged = hoverChanged || this.emitHoverEvent(event, pointer, object);
        if (object instanceof Node && this.options.hoverConnectedEdges === true) {
          this._hoverConnectedEdges(object);
        }
      }

      if (hoverChanged === true) {
        this.body.emitter.emit('_requestRedraw');
      }
    }

    /**
     *
     * retrieve the currently selected objects
     * @return {{nodes: Array.<string>, edges: Array.<string>}} selection
     */

  }, {
    key: 'getSelection',
    value: function getSelection() {
      var nodeIds = this.getSelectedNodes();
      var edgeIds = this.getSelectedEdges();
      return { nodes: nodeIds, edges: edgeIds };
    }

    /**
     *
     * retrieve the currently selected nodes
     * @return {string[]} selection    An array with the ids of the
     *                                            selected nodes.
     */

  }, {
    key: 'getSelectedNodes',
    value: function getSelectedNodes() {
      var idArray = [];
      if (this.options.selectable === true) {
        for (var nodeId in this.selectionObj.nodes) {
          if (this.selectionObj.nodes.hasOwnProperty(nodeId)) {
            idArray.push(this.selectionObj.nodes[nodeId].id);
          }
        }
      }
      return idArray;
    }

    /**
     *
     * retrieve the currently selected edges
     * @return {Array} selection    An array with the ids of the
     *                                            selected nodes.
     */

  }, {
    key: 'getSelectedEdges',
    value: function getSelectedEdges() {
      var idArray = [];
      if (this.options.selectable === true) {
        for (var edgeId in this.selectionObj.edges) {
          if (this.selectionObj.edges.hasOwnProperty(edgeId)) {
            idArray.push(this.selectionObj.edges[edgeId].id);
          }
        }
      }
      return idArray;
    }

    /**
     * Updates the current selection
     * @param {{nodes: Array.<string>, edges: Array.<string>}} selection
     * @param {Object} options                                 Options
     */

  }, {
    key: 'setSelection',
    value: function setSelection(selection) {
      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

      var i = void 0,
          id = void 0;

      if (!selection || !selection.nodes && !selection.edges) throw 'Selection must be an object with nodes and/or edges properties';
      // first unselect any selected node, if option is true or undefined
      if (options.unselectAll || options.unselectAll === undefined) {
        this.unselectAll();
      }
      if (selection.nodes) {
        for (i = 0; i < selection.nodes.length; i++) {
          id = selection.nodes[i];

          var node = this.body.nodes[id];
          if (!node) {
            throw new RangeError('Node with id "' + id + '" not found');
          }
          // don't select edges with it
          this.selectObject(node, options.highlightEdges);
        }
      }

      if (selection.edges) {
        for (i = 0; i < selection.edges.length; i++) {
          id = selection.edges[i];

          var edge = this.body.edges[id];
          if (!edge) {
            throw new RangeError('Edge with id "' + id + '" not found');
          }
          this.selectObject(edge);
        }
      }
      this.body.emitter.emit('_requestRedraw');
    }

    /**
     * select zero or more nodes with the option to highlight edges
     * @param {number[] | string[]} selection     An array with the ids of the
     *                                            selected nodes.
     * @param {boolean} [highlightEdges]
     */

  }, {
    key: 'selectNodes',
    value: function selectNodes(selection) {
      var highlightEdges = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

      if (!selection || selection.length === undefined) throw 'Selection must be an array with ids';

      this.setSelection({ nodes: selection }, { highlightEdges: highlightEdges });
    }

    /**
     * select zero or more edges
     * @param {number[] | string[]} selection     An array with the ids of the
     *                                            selected nodes.
     */

  }, {
    key: 'selectEdges',
    value: function selectEdges(selection) {
      if (!selection || selection.length === undefined) throw 'Selection must be an array with ids';

      this.setSelection({ edges: selection });
    }

    /**
     * Validate the selection: remove ids of nodes which no longer exist
     * @private
     */

  }, {
    key: 'updateSelection',
    value: function updateSelection() {
      for (var nodeId in this.selectionObj.nodes) {
        if (this.selectionObj.nodes.hasOwnProperty(nodeId)) {
          if (!this.body.nodes.hasOwnProperty(nodeId)) {
            delete this.selectionObj.nodes[nodeId];
          }
        }
      }
      for (var edgeId in this.selectionObj.edges) {
        if (this.selectionObj.edges.hasOwnProperty(edgeId)) {
          if (!this.body.edges.hasOwnProperty(edgeId)) {
            delete this.selectionObj.edges[edgeId];
          }
        }
      }
    }

    /**
     * Determine all the visual elements clicked which are on the given point.
     *
     * All elements are returned; this includes nodes, edges and their labels.
     * The order returned is from highest to lowest, i.e. element 0 of the return
     * value is the topmost item clicked on.
     *
     * The return value consists of an array of the following possible elements:
     *
     * - `{nodeId:number}`             - node with given id clicked on
     * - `{nodeId:number, labelId:0}`  - label of node with given id clicked on
     * - `{edgeId:number}`             - edge with given id clicked on
     * - `{edge:number, labelId:0}`    - label of edge with given id clicked on
     *
     * ## NOTES
     *
     * - Currently, there is only one label associated with a node or an edge,
     *   but this is expected to change somewhere in the future.
     * - Since there is no z-indexing yet, it is not really possible to set the nodes and
     *   edges in the correct order. For the time being, nodes come first.
     *
     * @param {point} pointer  mouse position in screen coordinates
     * @returns {Array.<nodeClickItem|nodeLabelClickItem|edgeClickItem|edgeLabelClickItem>}
     * @private
     */

  }, {
    key: 'getClickedItems',
    value: function getClickedItems(pointer) {
      var point = this.canvas.DOMtoCanvas(pointer);
      var items = [];

      // Note reverse order; we want the topmost clicked items to be first in the array
      // Also note that selected nodes are disregarded here; these normally display on top
      var nodeIndices = this.body.nodeIndices;
      var nodes = this.body.nodes;
      for (var i = nodeIndices.length - 1; i >= 0; i--) {
        var node = nodes[nodeIndices[i]];
        var ret = node.getItemsOnPoint(point);
        items.push.apply(items, ret); // Append the return value to the running list.
      }

      var edgeIndices = this.body.edgeIndices;
      var edges = this.body.edges;
      for (var _i = edgeIndices.length - 1; _i >= 0; _i--) {
        var edge = edges[edgeIndices[_i]];
        var _ret = edge.getItemsOnPoint(point);
        items.push.apply(items, _ret); // Append the return value to the running list.
      }

      return items;
    }
  }]);
  return SelectionHandler;
}();

exports['default'] = SelectionHandler;

/***/ }),
/* 235 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

/**
 * There's a mix-up with terms in the code. Following are the formal definitions:
 *
 *   tree   - a strict hierarchical network, i.e. every node has at most one parent
 *   forest - a collection of trees. These distinct trees are thus not connected.
 *
 * So:
 * - in a network that is not a tree, there exist nodes with multiple parents.
 * - a network consisting of unconnected sub-networks, of which at least one
 *   is not a tree, is not a forest.
 *
 * In the code, the definitions are:
 *
 *   tree   - any disconnected sub-network, strict hierarchical or not.
 *   forest - a bunch of these sub-networks
 *
 * The difference between tree and not-tree is important in the code, notably within
 * to the block-shifting algorithm. The algorithm assumes formal trees and fails
 * for not-trees, often in a spectacular manner (search for 'exploding network' in the issues).
 *
 * In order to distinguish the definitions in the following code, the adjective 'formal' is
 * used. If 'formal' is absent, you must assume the non-formal definition.
 *
 * ----------------------------------------------------------------------------------
 * NOTES
 * =====
 *
 * A hierarchical layout is a different thing from a hierarchical network.
 * The layout is a way to arrange the nodes in the view; this can be done
 * on non-hierarchical networks as well. The converse is also possible.
 */

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _slicedToArray2 = __webpack_require__(30);

var _slicedToArray3 = _interopRequireDefault(_slicedToArray2);

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

var _keys = __webpack_require__(8);

var _keys2 = _interopRequireDefault(_keys);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var NetworkUtil = __webpack_require__(76)['default'];

var _require = __webpack_require__(236),
    HorizontalStrategy = _require.HorizontalStrategy,
    VerticalStrategy = _require.VerticalStrategy;

/**
 * Container for derived data on current network, relating to hierarchy.
 *
 * @private
 */


var HierarchicalStatus = function () {
  /**
   * @ignore
   */
  function HierarchicalStatus() {
    (0, _classCallCheck3['default'])(this, HierarchicalStatus);

    this.childrenReference = {}; // child id's per node id
    this.parentReference = {}; // parent id's per node id
    this.trees = {}; // tree id per node id; i.e. to which tree does given node id belong

    this.distributionOrdering = {}; // The nodes per level, in the display order
    this.levels = {}; // hierarchy level per node id
    this.distributionIndex = {}; // The position of the node in the level sorting order, per node id.

    this.isTree = false; // True if current network is a formal tree 
    this.treeIndex = -1; // Highest tree id in current network.
  }

  /**
   * Add the relation between given nodes to the current state.
   *
   * @param {Node.id} parentNodeId
   * @param {Node.id} childNodeId
   */


  (0, _createClass3['default'])(HierarchicalStatus, [{
    key: 'addRelation',
    value: function addRelation(parentNodeId, childNodeId) {
      if (this.childrenReference[parentNodeId] === undefined) {
        this.childrenReference[parentNodeId] = [];
      }
      this.childrenReference[parentNodeId].push(childNodeId);

      if (this.parentReference[childNodeId] === undefined) {
        this.parentReference[childNodeId] = [];
      }
      this.parentReference[childNodeId].push(parentNodeId);
    }

    /**
     * Check if the current state is for a formal tree or formal forest.
     *
     * This is the case if every node has at most one parent.
     *
     * Pre: parentReference init'ed properly for current network
     */

  }, {
    key: 'checkIfTree',
    value: function checkIfTree() {
      for (var i in this.parentReference) {
        if (this.parentReference[i].length > 1) {
          this.isTree = false;
          return;
        }
      }

      this.isTree = true;
    }

    /**
     * Return the number of separate trees in the current network.
     * @returns {number}
     */

  }, {
    key: 'numTrees',
    value: function numTrees() {
      return this.treeIndex + 1; // This assumes the indexes are assigned consecitively
    }

    /**
     * Assign a tree id to a node
     * @param {Node} node
     * @param {string|number} treeId
     */

  }, {
    key: 'setTreeIndex',
    value: function setTreeIndex(node, treeId) {
      if (treeId === undefined) return; // Don't bother

      if (this.trees[node.id] === undefined) {
        this.trees[node.id] = treeId;
        this.treeIndex = Math.max(treeId, this.treeIndex);
      }
    }

    /**
     * Ensure level for given id is defined.
     *
     * Sets level to zero for given node id if not already present
     *
     * @param {Node.id} nodeId
     */

  }, {
    key: 'ensureLevel',
    value: function ensureLevel(nodeId) {
      if (this.levels[nodeId] === undefined) {
        this.levels[nodeId] = 0;
      }
    }

    /**
     * get the maximum level of a branch.
     *
     * TODO: Never entered; find a test case to test this!
     * @param {Node.id} nodeId
     * @returns {number}
     */

  }, {
    key: 'getMaxLevel',
    value: function getMaxLevel(nodeId) {
      var _this = this;

      var accumulator = {};

      var _getMaxLevel = function _getMaxLevel(nodeId) {
        if (accumulator[nodeId] !== undefined) {
          return accumulator[nodeId];
        }
        var level = _this.levels[nodeId];
        if (_this.childrenReference[nodeId]) {
          var children = _this.childrenReference[nodeId];
          if (children.length > 0) {
            for (var i = 0; i < children.length; i++) {
              level = Math.max(level, _getMaxLevel(children[i]));
            }
          }
        }
        accumulator[nodeId] = level;
        return level;
      };

      return _getMaxLevel(nodeId);
    }

    /**
     *
     * @param {Node} nodeA
     * @param {Node} nodeB
     */

  }, {
    key: 'levelDownstream',
    value: function levelDownstream(nodeA, nodeB) {
      if (this.levels[nodeB.id] === undefined) {
        // set initial level
        if (this.levels[nodeA.id] === undefined) {
          this.levels[nodeA.id] = 0;
        }
        // set level
        this.levels[nodeB.id] = this.levels[nodeA.id] + 1;
      }
    }

    /**
     * Small util method to set the minimum levels of the nodes to zero.
     *
     * @param {Array.<Node>} nodes
     */

  }, {
    key: 'setMinLevelToZero',
    value: function setMinLevelToZero(nodes) {
      var minLevel = 1e9;
      // get the minimum level
      for (var nodeId in nodes) {
        if (nodes.hasOwnProperty(nodeId)) {
          if (this.levels[nodeId] !== undefined) {
            minLevel = Math.min(this.levels[nodeId], minLevel);
          }
        }
      }

      // subtract the minimum from the set so we have a range starting from 0
      for (var _nodeId in nodes) {
        if (nodes.hasOwnProperty(_nodeId)) {
          if (this.levels[_nodeId] !== undefined) {
            this.levels[_nodeId] -= minLevel;
          }
        }
      }
    }

    /**
     * Get the min and max xy-coordinates of a given tree
     *
     * @param {Array.<Node>} nodes
     * @param {number} index
     * @returns {{min_x: number, max_x: number, min_y: number, max_y: number}}
     */

  }, {
    key: 'getTreeSize',
    value: function getTreeSize(nodes, index) {
      var min_x = 1e9;
      var max_x = -1e9;
      var min_y = 1e9;
      var max_y = -1e9;

      for (var nodeId in this.trees) {
        if (this.trees.hasOwnProperty(nodeId)) {
          if (this.trees[nodeId] === index) {
            var node = nodes[nodeId];
            min_x = Math.min(node.x, min_x);
            max_x = Math.max(node.x, max_x);
            min_y = Math.min(node.y, min_y);
            max_y = Math.max(node.y, max_y);
          }
        }
      }

      return {
        min_x: min_x,
        max_x: max_x,
        min_y: min_y,
        max_y: max_y
      };
    }

    /**
     * Check if two nodes have the same parent(s)
     *
     * @param {Node} node1
     * @param {Node} node2
     * @return {boolean} true if the two nodes have a same ancestor node, false otherwise
     */

  }, {
    key: 'hasSameParent',
    value: function hasSameParent(node1, node2) {
      var parents1 = this.parentReference[node1.id];
      var parents2 = this.parentReference[node2.id];
      if (parents1 === undefined || parents2 === undefined) {
        return false;
      }

      for (var i = 0; i < parents1.length; i++) {
        for (var j = 0; j < parents2.length; j++) {
          if (parents1[i] == parents2[j]) {
            return true;
          }
        }
      }
      return false;
    }

    /**
     * Check if two nodes are in the same tree.
     *
     * @param {Node} node1
     * @param {Node} node2
     * @return {Boolean} true if this is so, false otherwise
     */

  }, {
    key: 'inSameSubNetwork',
    value: function inSameSubNetwork(node1, node2) {
      return this.trees[node1.id] === this.trees[node2.id];
    }

    /**
     * Get a list of the distinct levels in the current network
     *
     * @returns {Array}
     */

  }, {
    key: 'getLevels',
    value: function getLevels() {
      return (0, _keys2['default'])(this.distributionOrdering);
    }

    /**
     * Add a node to the ordering per level
     *
     * @param {Node} node
     * @param {number} level
     */

  }, {
    key: 'addToOrdering',
    value: function addToOrdering(node, level) {
      if (this.distributionOrdering[level] === undefined) {
        this.distributionOrdering[level] = [];
      }

      var isPresent = false;
      var curLevel = this.distributionOrdering[level];
      for (var n in curLevel) {
        //if (curLevel[n].id === node.id) {
        if (curLevel[n] === node) {
          isPresent = true;
          break;
        }
      }

      if (!isPresent) {
        this.distributionOrdering[level].push(node);
        this.distributionIndex[node.id] = this.distributionOrdering[level].length - 1;
      }
    }
  }]);
  return HierarchicalStatus;
}();

/**
 * The Layout Engine
 */


var LayoutEngine = function () {
  /**
   * @param {Object} body
   */
  function LayoutEngine(body) {
    (0, _classCallCheck3['default'])(this, LayoutEngine);

    this.body = body;

    this.initialRandomSeed = Math.round(Math.random() * 1000000);
    this.randomSeed = this.initialRandomSeed;
    this.setPhysics = false;
    this.options = {};
    this.optionsBackup = { physics: {} };

    this.defaultOptions = {
      randomSeed: undefined,
      improvedLayout: true,
      hierarchical: {
        enabled: false,
        levelSeparation: 150,
        nodeSpacing: 100,
        treeSpacing: 200,
        blockShifting: true,
        edgeMinimization: true,
        parentCentralization: true,
        direction: 'UD', // UD, DU, LR, RL
        sortMethod: 'hubsize' // hubsize, directed
      }
    };
    util.extend(this.options, this.defaultOptions);
    this.bindEventListeners();
  }

  /**
   * Binds event listeners
   */


  (0, _createClass3['default'])(LayoutEngine, [{
    key: 'bindEventListeners',
    value: function bindEventListeners() {
      var _this2 = this;

      this.body.emitter.on('_dataChanged', function () {
        _this2.setupHierarchicalLayout();
      });
      this.body.emitter.on('_dataLoaded', function () {
        _this2.layoutNetwork();
      });
      this.body.emitter.on('_resetHierarchicalLayout', function () {
        _this2.setupHierarchicalLayout();
      });
      this.body.emitter.on('_adjustEdgesForHierarchicalLayout', function () {
        if (_this2.options.hierarchical.enabled !== true) {
          return;
        }
        // get the type of static smooth curve in case it is required
        var type = _this2.direction.curveType();

        // force all edges into static smooth curves.
        _this2.body.emitter.emit('_forceDisableDynamicCurves', type, false);
      });
    }

    /**
     *
     * @param {Object} options
     * @param {Object} allOptions
     * @returns {Object}
     */

  }, {
    key: 'setOptions',
    value: function setOptions(options, allOptions) {
      if (options !== undefined) {
        var hierarchical = this.options.hierarchical;
        var prevHierarchicalState = hierarchical.enabled;
        util.selectiveDeepExtend(["randomSeed", "improvedLayout"], this.options, options);
        util.mergeOptions(this.options, options, 'hierarchical');
        if (options.randomSeed !== undefined) {
          this.initialRandomSeed = options.randomSeed;
        }

        if (hierarchical.enabled === true) {
          if (prevHierarchicalState === true) {
            // refresh the overridden options for nodes and edges.
            this.body.emitter.emit('refresh', true);
          }

          // make sure the level separation is the right way up
          if (hierarchical.direction === 'RL' || hierarchical.direction === 'DU') {
            if (hierarchical.levelSeparation > 0) {
              hierarchical.levelSeparation *= -1;
            }
          } else {
            if (hierarchical.levelSeparation < 0) {
              hierarchical.levelSeparation *= -1;
            }
          }

          this.setDirectionStrategy();

          this.body.emitter.emit('_resetHierarchicalLayout');
          // because the hierarchical system needs it's own physics and smooth curve settings,
          // we adapt the other options if needed.
          return this.adaptAllOptionsForHierarchicalLayout(allOptions);
        } else {
          if (prevHierarchicalState === true) {
            // refresh the overridden options for nodes and edges.
            this.body.emitter.emit('refresh');
            return util.deepExtend(allOptions, this.optionsBackup);
          }
        }
      }
      return allOptions;
    }

    /**
     *
     * @param {Object} allOptions
     * @returns {Object}
     */

  }, {
    key: 'adaptAllOptionsForHierarchicalLayout',
    value: function adaptAllOptionsForHierarchicalLayout(allOptions) {
      if (this.options.hierarchical.enabled === true) {
        var backupPhysics = this.optionsBackup.physics;

        // set the physics
        if (allOptions.physics === undefined || allOptions.physics === true) {
          allOptions.physics = {
            enabled: backupPhysics.enabled === undefined ? true : backupPhysics.enabled,
            solver: 'hierarchicalRepulsion'
          };
          backupPhysics.enabled = backupPhysics.enabled === undefined ? true : backupPhysics.enabled;
          backupPhysics.solver = backupPhysics.solver || 'barnesHut';
        } else if ((0, _typeof3['default'])(allOptions.physics) === 'object') {
          backupPhysics.enabled = allOptions.physics.enabled === undefined ? true : allOptions.physics.enabled;
          backupPhysics.solver = allOptions.physics.solver || 'barnesHut';
          allOptions.physics.solver = 'hierarchicalRepulsion';
        } else if (allOptions.physics !== false) {
          backupPhysics.solver = 'barnesHut';
          allOptions.physics = { solver: 'hierarchicalRepulsion' };
        }

        // get the type of static smooth curve in case it is required
        var type = this.direction.curveType();

        // disable smooth curves if nothing is defined. If smooth curves have been turned on,
        // turn them into static smooth curves.
        if (allOptions.edges === undefined) {
          this.optionsBackup.edges = { smooth: { enabled: true, type: 'dynamic' } };
          allOptions.edges = { smooth: false };
        } else if (allOptions.edges.smooth === undefined) {
          this.optionsBackup.edges = { smooth: { enabled: true, type: 'dynamic' } };
          allOptions.edges.smooth = false;
        } else {
          if (typeof allOptions.edges.smooth === 'boolean') {
            this.optionsBackup.edges = { smooth: allOptions.edges.smooth };
            allOptions.edges.smooth = { enabled: allOptions.edges.smooth, type: type };
          } else {
            var smooth = allOptions.edges.smooth;

            // allow custom types except for dynamic
            if (smooth.type !== undefined && smooth.type !== 'dynamic') {
              type = smooth.type;
            }

            // TODO: this is options merging; see if the standard routines can be used here.
            this.optionsBackup.edges = {
              smooth: smooth.enabled === undefined ? true : smooth.enabled,
              type: smooth.type === undefined ? 'dynamic' : smooth.type,
              roundness: smooth.roundness === undefined ? 0.5 : smooth.roundness,
              forceDirection: smooth.forceDirection === undefined ? false : smooth.forceDirection
            };

            // NOTE: Copying an object to self; this is basically setting defaults for undefined variables
            allOptions.edges.smooth = {
              enabled: smooth.enabled === undefined ? true : smooth.enabled,
              type: type,
              roundness: smooth.roundness === undefined ? 0.5 : smooth.roundness,
              forceDirection: smooth.forceDirection === undefined ? false : smooth.forceDirection
            };
          }
        }

        // Force all edges into static smooth curves.
        // Only applies to edges that do not use the global options for smooth.
        this.body.emitter.emit('_forceDisableDynamicCurves', type);
      }

      return allOptions;
    }

    /**
     *
     * @returns {number}
     */

  }, {
    key: 'seededRandom',
    value: function seededRandom() {
      var x = Math.sin(this.randomSeed++) * 10000;
      return x - Math.floor(x);
    }

    /**
     *
     * @param {Array.<Node>} nodesArray
     */

  }, {
    key: 'positionInitially',
    value: function positionInitially(nodesArray) {
      if (this.options.hierarchical.enabled !== true) {
        this.randomSeed = this.initialRandomSeed;
        var radius = nodesArray.length + 50;
        for (var i = 0; i < nodesArray.length; i++) {
          var node = nodesArray[i];
          var angle = 2 * Math.PI * this.seededRandom();
          if (node.x === undefined) {
            node.x = radius * Math.cos(angle);
          }
          if (node.y === undefined) {
            node.y = radius * Math.sin(angle);
          }
        }
      }
    }

    /**
     * Use Kamada Kawai to position nodes. This is quite a heavy algorithm so if there are a lot of nodes we
     * cluster them first to reduce the amount.
     */

  }, {
    key: 'layoutNetwork',
    value: function layoutNetwork() {
      if (this.options.hierarchical.enabled !== true && this.options.improvedLayout === true) {
        var indices = this.body.nodeIndices;

        // first check if we should Kamada Kawai to layout. The threshold is if less than half of the visible
        // nodes have predefined positions we use this.
        var positionDefined = 0;
        for (var i = 0; i < indices.length; i++) {
          var node = this.body.nodes[indices[i]];
          if (node.predefinedPosition === true) {
            positionDefined += 1;
          }
        }

        // if less than half of the nodes have a predefined position we continue
        if (positionDefined < 0.5 * indices.length) {
          var MAX_LEVELS = 10;
          var level = 0;
          var clusterThreshold = 150; // TODO add this to options

          //
          // Define the options for the hidden cluster nodes
          // These options don't propagate outside the clustering phase.
          //
          // Some options are explicitly disabled, because they may be set in group or default node options.
          // The clusters are never displayed, so most explicit settings here serve as performance optimizations.
          //
          // The explicit setting of 'shape' is to avoid `shape: 'image'`; images are not passed to the hidden
          // cluster nodes, leading to an exception on creation.
          //
          // All settings here are performance related, except when noted otherwise.
          //
          var clusterOptions = {
            clusterNodeProperties: {
              shape: 'ellipse', // Bugfix: avoid type 'image', no images supplied
              label: '', // avoid label handling
              group: '', // avoid group handling
              font: { multi: false } // avoid font propagation
            },
            clusterEdgeProperties: {
              label: '', // avoid label handling
              font: { multi: false }, // avoid font propagation
              smooth: {
                enabled: false // avoid drawing penalty for complex edges
              }
            }
          };

          // if there are a lot of nodes, we cluster before we run the algorithm.
          // NOTE: this part fails to find clusters for large scale-free networks, which should
          //       be easily clusterable.
          // TODO: examine why this is so
          if (indices.length > clusterThreshold) {
            var startLength = indices.length;
            while (indices.length > clusterThreshold && level <= MAX_LEVELS) {
              //console.time("clustering")
              level += 1;
              var before = indices.length;
              // if there are many nodes we do a hubsize cluster
              if (level % 3 === 0) {
                this.body.modules.clustering.clusterBridges(clusterOptions);
              } else {
                this.body.modules.clustering.clusterOutliers(clusterOptions);
              }
              var after = indices.length;
              if (before == after && level % 3 !== 0) {
                this._declusterAll();
                this.body.emitter.emit("_layoutFailed");
                console.info("This network could not be positioned by this version of the improved layout algorithm." + " Please disable improvedLayout for better performance.");
                return;
              }
              //console.timeEnd("clustering")
              //console.log(before,level,after);
            }
            // increase the size of the edges
            this.body.modules.kamadaKawai.setOptions({ springLength: Math.max(150, 2 * startLength) });
          }
          if (level > MAX_LEVELS) {
            console.info("The clustering didn't succeed within the amount of interations allowed," + " progressing with partial result.");
          }

          // position the system for these nodes and edges
          this.body.modules.kamadaKawai.solve(indices, this.body.edgeIndices, true);

          // shift to center point
          this._shiftToCenter();

          // perturb the nodes a little bit to force the physics to kick in
          var offset = 70;
          for (var _i = 0; _i < indices.length; _i++) {
            // Only perturb the nodes that aren't fixed
            var _node = this.body.nodes[indices[_i]];
            if (_node.predefinedPosition === false) {
              _node.x += (0.5 - this.seededRandom()) * offset;
              _node.y += (0.5 - this.seededRandom()) * offset;
            }
          }

          // uncluster all clusters
          this._declusterAll();

          // reposition all bezier nodes.
          this.body.emitter.emit("_repositionBezierNodes");
        }
      }
    }

    /**
     * Move all the nodes towards to the center so gravitational pull wil not move the nodes away from view
     * @private
     */

  }, {
    key: '_shiftToCenter',
    value: function _shiftToCenter() {
      var range = NetworkUtil.getRangeCore(this.body.nodes, this.body.nodeIndices);
      var center = NetworkUtil.findCenter(range);
      for (var i = 0; i < this.body.nodeIndices.length; i++) {
        var node = this.body.nodes[this.body.nodeIndices[i]];
        node.x -= center.x;
        node.y -= center.y;
      }
    }

    /**
     * Expands all clusters
     * @private
     */

  }, {
    key: '_declusterAll',
    value: function _declusterAll() {
      var clustersPresent = true;
      while (clustersPresent === true) {
        clustersPresent = false;
        for (var i = 0; i < this.body.nodeIndices.length; i++) {
          if (this.body.nodes[this.body.nodeIndices[i]].isCluster === true) {
            clustersPresent = true;
            this.body.modules.clustering.openCluster(this.body.nodeIndices[i], {}, false);
          }
        }
        if (clustersPresent === true) {
          this.body.emitter.emit('_dataChanged');
        }
      }
    }

    /**
     *
     * @returns {number|*}
     */

  }, {
    key: 'getSeed',
    value: function getSeed() {
      return this.initialRandomSeed;
    }

    /**
     * This is the main function to layout the nodes in a hierarchical way.
     * It checks if the node details are supplied correctly
     *
     * @private
     */

  }, {
    key: 'setupHierarchicalLayout',
    value: function setupHierarchicalLayout() {
      if (this.options.hierarchical.enabled === true && this.body.nodeIndices.length > 0) {
        // get the size of the largest hubs and check if the user has defined a level for a node.
        var node = void 0,
            nodeId = void 0;
        var definedLevel = false;
        var undefinedLevel = false;
        this.lastNodeOnLevel = {};
        this.hierarchical = new HierarchicalStatus();

        for (nodeId in this.body.nodes) {
          if (this.body.nodes.hasOwnProperty(nodeId)) {
            node = this.body.nodes[nodeId];
            if (node.options.level !== undefined) {
              definedLevel = true;
              this.hierarchical.levels[nodeId] = node.options.level;
            } else {
              undefinedLevel = true;
            }
          }
        }

        // if the user defined some levels but not all, alert and run without hierarchical layout
        if (undefinedLevel === true && definedLevel === true) {
          throw new Error('To use the hierarchical layout, nodes require either no predefined levels' + ' or levels have to be defined for all nodes.');
        } else {
          // define levels if undefined by the users. Based on hubsize.
          if (undefinedLevel === true) {
            var sortMethod = this.options.hierarchical.sortMethod;
            if (sortMethod === 'hubsize') {
              this._determineLevelsByHubsize();
            } else if (sortMethod === 'directed') {
              this._determineLevelsDirected();
            } else if (sortMethod === 'custom') {
              this._determineLevelsCustomCallback();
            }
          }

          // fallback for cases where there are nodes but no edges
          for (var _nodeId2 in this.body.nodes) {
            if (this.body.nodes.hasOwnProperty(_nodeId2)) {
              this.hierarchical.ensureLevel(_nodeId2);
            }
          }
          // check the distribution of the nodes per level.
          var distribution = this._getDistribution();

          // get the parent children relations.
          this._generateMap();

          // place the nodes on the canvas.
          this._placeNodesByHierarchy(distribution);

          // condense the whitespace.
          this._condenseHierarchy();

          // shift to center so gravity does not have to do much
          this._shiftToCenter();
        }
      }
    }

    /**
     * @private
     */

  }, {
    key: '_condenseHierarchy',
    value: function _condenseHierarchy() {
      var _this3 = this;

      // Global var in this scope to define when the movement has stopped.
      var stillShifting = false;
      var branches = {};
      // first we have some methods to help shifting trees around.
      // the main method to shift the trees
      var shiftTrees = function shiftTrees() {
        var treeSizes = getTreeSizes();
        var shiftBy = 0;
        for (var i = 0; i < treeSizes.length - 1; i++) {
          var diff = treeSizes[i].max - treeSizes[i + 1].min;
          shiftBy += diff + _this3.options.hierarchical.treeSpacing;
          shiftTree(i + 1, shiftBy);
        }
      };

      // shift a single tree by an offset
      var shiftTree = function shiftTree(index, offset) {
        var trees = _this3.hierarchical.trees;

        for (var nodeId in trees) {
          if (trees.hasOwnProperty(nodeId)) {
            if (trees[nodeId] === index) {
              _this3.direction.shift(nodeId, offset);
            }
          }
        }
      };

      // get the width of all trees
      var getTreeSizes = function getTreeSizes() {
        var treeWidths = [];
        for (var i = 0; i < _this3.hierarchical.numTrees(); i++) {
          treeWidths.push(_this3.direction.getTreeSize(i));
        }
        return treeWidths;
      };

      // get a map of all nodes in this branch
      var getBranchNodes = function getBranchNodes(source, map) {
        if (map[source.id]) {
          return;
        }
        map[source.id] = true;
        if (_this3.hierarchical.childrenReference[source.id]) {
          var children = _this3.hierarchical.childrenReference[source.id];
          if (children.length > 0) {
            for (var i = 0; i < children.length; i++) {
              getBranchNodes(_this3.body.nodes[children[i]], map);
            }
          }
        }
      };

      // get a min max width as well as the maximum movement space it has on either sides
      // we use min max terminology because width and height can interchange depending on the direction of the layout
      var getBranchBoundary = function getBranchBoundary(branchMap) {
        var maxLevel = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1e9;

        var minSpace = 1e9;
        var maxSpace = 1e9;
        var min = 1e9;
        var max = -1e9;
        for (var branchNode in branchMap) {
          if (branchMap.hasOwnProperty(branchNode)) {
            var node = _this3.body.nodes[branchNode];
            var level = _this3.hierarchical.levels[node.id];
            var position = _this3.direction.getPosition(node);

            // get the space around the node.

            var _getSpaceAroundNode2 = _this3._getSpaceAroundNode(node, branchMap),
                _getSpaceAroundNode3 = (0, _slicedToArray3['default'])(_getSpaceAroundNode2, 2),
                minSpaceNode = _getSpaceAroundNode3[0],
                maxSpaceNode = _getSpaceAroundNode3[1];

            minSpace = Math.min(minSpaceNode, minSpace);
            maxSpace = Math.min(maxSpaceNode, maxSpace);

            // the width is only relevant for the levels two nodes have in common. This is why we filter on this.
            if (level <= maxLevel) {
              min = Math.min(position, min);
              max = Math.max(position, max);
            }
          }
        }

        return [min, max, minSpace, maxSpace];
      };

      // check what the maximum level is these nodes have in common.
      var getCollisionLevel = function getCollisionLevel(node1, node2) {
        var maxLevel1 = _this3.hierarchical.getMaxLevel(node1.id);
        var maxLevel2 = _this3.hierarchical.getMaxLevel(node2.id);
        return Math.min(maxLevel1, maxLevel2);
      };

      /**
       * Condense elements. These can be nodes or branches depending on the callback.
       *
       * @param {function} callback
       * @param {Array.<number>} levels
       * @param {*} centerParents
       */
      var shiftElementsCloser = function shiftElementsCloser(callback, levels, centerParents) {
        var hier = _this3.hierarchical;

        for (var i = 0; i < levels.length; i++) {
          var level = levels[i];
          var levelNodes = hier.distributionOrdering[level];
          if (levelNodes.length > 1) {
            for (var j = 0; j < levelNodes.length - 1; j++) {
              var node1 = levelNodes[j];
              var node2 = levelNodes[j + 1];

              // NOTE: logic maintained as it was; if nodes have same ancestor,
              //       then of course they are in the same sub-network.
              if (hier.hasSameParent(node1, node2) && hier.inSameSubNetwork(node1, node2)) {
                callback(node1, node2, centerParents);
              }
            }
          }
        }
      };

      // callback for shifting branches
      var branchShiftCallback = function branchShiftCallback(node1, node2) {
        var centerParent = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

        //window.CALLBACKS.push(() => {
        var pos1 = _this3.direction.getPosition(node1);
        var pos2 = _this3.direction.getPosition(node2);
        var diffAbs = Math.abs(pos2 - pos1);
        var nodeSpacing = _this3.options.hierarchical.nodeSpacing;
        //console.log("NOW CHECKING:", node1.id, node2.id, diffAbs);
        if (diffAbs > nodeSpacing) {
          var branchNodes1 = {};
          var branchNodes2 = {};

          getBranchNodes(node1, branchNodes1);
          getBranchNodes(node2, branchNodes2);

          // check the largest distance between the branches
          var maxLevel = getCollisionLevel(node1, node2);
          var branchNodeBoundary1 = getBranchBoundary(branchNodes1, maxLevel);
          var branchNodeBoundary2 = getBranchBoundary(branchNodes2, maxLevel);
          var max1 = branchNodeBoundary1[1];
          var min2 = branchNodeBoundary2[0];
          var minSpace2 = branchNodeBoundary2[2];

          //console.log(node1.id, getBranchBoundary(branchNodes1, maxLevel), node2.id,
          //            getBranchBoundary(branchNodes2, maxLevel), maxLevel);
          var diffBranch = Math.abs(max1 - min2);
          if (diffBranch > nodeSpacing) {
            var offset = max1 - min2 + nodeSpacing;
            if (offset < -minSpace2 + nodeSpacing) {
              offset = -minSpace2 + nodeSpacing;
              //console.log("RESETTING OFFSET", max1 - min2 + this.options.hierarchical.nodeSpacing, -minSpace2, offset);
            }
            if (offset < 0) {
              //console.log("SHIFTING", node2.id, offset);
              _this3._shiftBlock(node2.id, offset);
              stillShifting = true;

              if (centerParent === true) _this3._centerParent(node2);
            }
          }
        }
        //this.body.emitter.emit("_redraw");})
      };

      var minimizeEdgeLength = function minimizeEdgeLength(iterations, node) {
        //window.CALLBACKS.push(() => {
        //  console.log("ts",node.id);
        var nodeId = node.id;
        var allEdges = node.edges;
        var nodeLevel = _this3.hierarchical.levels[node.id];

        // gather constants
        var C2 = _this3.options.hierarchical.levelSeparation * _this3.options.hierarchical.levelSeparation;
        var referenceNodes = {};
        var aboveEdges = [];
        for (var i = 0; i < allEdges.length; i++) {
          var edge = allEdges[i];
          if (edge.toId != edge.fromId) {
            var otherNode = edge.toId == nodeId ? edge.from : edge.to;
            referenceNodes[allEdges[i].id] = otherNode;
            if (_this3.hierarchical.levels[otherNode.id] < nodeLevel) {
              aboveEdges.push(edge);
            }
          }
        }

        // differentiated sum of lengths based on only moving one node over one axis
        var getFx = function getFx(point, edges) {
          var sum = 0;
          for (var _i2 = 0; _i2 < edges.length; _i2++) {
            if (referenceNodes[edges[_i2].id] !== undefined) {
              var a = _this3.direction.getPosition(referenceNodes[edges[_i2].id]) - point;
              sum += a / Math.sqrt(a * a + C2);
            }
          }
          return sum;
        };

        // doubly differentiated sum of lengths based on only moving one node over one axis
        var getDFx = function getDFx(point, edges) {
          var sum = 0;
          for (var _i3 = 0; _i3 < edges.length; _i3++) {
            if (referenceNodes[edges[_i3].id] !== undefined) {
              var a = _this3.direction.getPosition(referenceNodes[edges[_i3].id]) - point;
              sum -= C2 * Math.pow(a * a + C2, -1.5);
            }
          }
          return sum;
        };

        var getGuess = function getGuess(iterations, edges) {
          var guess = _this3.direction.getPosition(node);
          // Newton's method for optimization
          var guessMap = {};
          for (var _i4 = 0; _i4 < iterations; _i4++) {
            var fx = getFx(guess, edges);
            var dfx = getDFx(guess, edges);

            // we limit the movement to avoid instability.
            var limit = 40;
            var ratio = Math.max(-limit, Math.min(limit, Math.round(fx / dfx)));
            guess = guess - ratio;
            // reduce duplicates
            if (guessMap[guess] !== undefined) {
              break;
            }
            guessMap[guess] = _i4;
          }
          return guess;
        };

        var moveBranch = function moveBranch(guess) {
          // position node if there is space
          var nodePosition = _this3.direction.getPosition(node);

          // check movable area of the branch
          if (branches[node.id] === undefined) {
            var branchNodes = {};
            getBranchNodes(node, branchNodes);
            branches[node.id] = branchNodes;
          }
          var branchBoundary = getBranchBoundary(branches[node.id]);
          var minSpaceBranch = branchBoundary[2];
          var maxSpaceBranch = branchBoundary[3];

          var diff = guess - nodePosition;

          // check if we are allowed to move the node:
          var branchOffset = 0;
          if (diff > 0) {
            branchOffset = Math.min(diff, maxSpaceBranch - _this3.options.hierarchical.nodeSpacing);
          } else if (diff < 0) {
            branchOffset = -Math.min(-diff, minSpaceBranch - _this3.options.hierarchical.nodeSpacing);
          }

          if (branchOffset != 0) {
            //console.log("moving branch:",branchOffset, maxSpaceBranch, minSpaceBranch)
            _this3._shiftBlock(node.id, branchOffset);
            //this.body.emitter.emit("_redraw");
            stillShifting = true;
          }
        };

        var moveNode = function moveNode(guess) {
          var nodePosition = _this3.direction.getPosition(node);

          // position node if there is space

          var _getSpaceAroundNode4 = _this3._getSpaceAroundNode(node),
              _getSpaceAroundNode5 = (0, _slicedToArray3['default'])(_getSpaceAroundNode4, 2),
              minSpace = _getSpaceAroundNode5[0],
              maxSpace = _getSpaceAroundNode5[1];

          var diff = guess - nodePosition;
          // check if we are allowed to move the node:
          var newPosition = nodePosition;
          if (diff > 0) {
            newPosition = Math.min(nodePosition + (maxSpace - _this3.options.hierarchical.nodeSpacing), guess);
          } else if (diff < 0) {
            newPosition = Math.max(nodePosition - (minSpace - _this3.options.hierarchical.nodeSpacing), guess);
          }

          if (newPosition !== nodePosition) {
            //console.log("moving Node:",diff, minSpace, maxSpace);
            _this3.direction.setPosition(node, newPosition);
            //this.body.emitter.emit("_redraw");
            stillShifting = true;
          }
        };

        var guess = getGuess(iterations, aboveEdges);
        moveBranch(guess);
        guess = getGuess(iterations, allEdges);
        moveNode(guess);
        //})
      };

      // method to remove whitespace between branches. Because we do bottom up, we can center the parents.
      var minimizeEdgeLengthBottomUp = function minimizeEdgeLengthBottomUp(iterations) {
        var levels = _this3.hierarchical.getLevels();
        levels = levels.reverse();
        for (var i = 0; i < iterations; i++) {
          stillShifting = false;
          for (var j = 0; j < levels.length; j++) {
            var level = levels[j];
            var levelNodes = _this3.hierarchical.distributionOrdering[level];
            for (var k = 0; k < levelNodes.length; k++) {
              minimizeEdgeLength(1000, levelNodes[k]);
            }
          }
          if (stillShifting !== true) {
            //console.log("FINISHED minimizeEdgeLengthBottomUp IN " + i);
            break;
          }
        }
      };

      // method to remove whitespace between branches. Because we do bottom up, we can center the parents.
      var shiftBranchesCloserBottomUp = function shiftBranchesCloserBottomUp(iterations) {
        var levels = _this3.hierarchical.getLevels();
        levels = levels.reverse();
        for (var i = 0; i < iterations; i++) {
          stillShifting = false;
          shiftElementsCloser(branchShiftCallback, levels, true);
          if (stillShifting !== true) {
            //console.log("FINISHED shiftBranchesCloserBottomUp IN " + (i+1));
            break;
          }
        }
      };

      // center all parents
      var centerAllParents = function centerAllParents() {
        for (var nodeId in _this3.body.nodes) {
          if (_this3.body.nodes.hasOwnProperty(nodeId)) _this3._centerParent(_this3.body.nodes[nodeId]);
        }
      };

      // center all parents
      var centerAllParentsBottomUp = function centerAllParentsBottomUp() {
        var levels = _this3.hierarchical.getLevels();
        levels = levels.reverse();
        for (var i = 0; i < levels.length; i++) {
          var level = levels[i];
          var levelNodes = _this3.hierarchical.distributionOrdering[level];
          for (var j = 0; j < levelNodes.length; j++) {
            _this3._centerParent(levelNodes[j]);
          }
        }
      };

      // the actual work is done here.
      if (this.options.hierarchical.blockShifting === true) {
        shiftBranchesCloserBottomUp(5);
        centerAllParents();
      }

      // minimize edge length
      if (this.options.hierarchical.edgeMinimization === true) {
        minimizeEdgeLengthBottomUp(20);
      }

      if (this.options.hierarchical.parentCentralization === true) {
        centerAllParentsBottomUp();
      }

      shiftTrees();
    }

    /**
     * This gives the space around the node. IF a map is supplied, it will only check against nodes NOT in the map.
     * This is used to only get the distances to nodes outside of a branch.
     * @param {Node} node
     * @param {{Node.id: vis.Node}} map
     * @returns {number[]}
     * @private
     */

  }, {
    key: '_getSpaceAroundNode',
    value: function _getSpaceAroundNode(node, map) {
      var useMap = true;
      if (map === undefined) {
        useMap = false;
      }
      var level = this.hierarchical.levels[node.id];
      if (level !== undefined) {
        var index = this.hierarchical.distributionIndex[node.id];
        var position = this.direction.getPosition(node);
        var ordering = this.hierarchical.distributionOrdering[level];
        var minSpace = 1e9;
        var maxSpace = 1e9;
        if (index !== 0) {
          var prevNode = ordering[index - 1];
          if (useMap === true && map[prevNode.id] === undefined || useMap === false) {
            var prevPos = this.direction.getPosition(prevNode);
            minSpace = position - prevPos;
          }
        }

        if (index != ordering.length - 1) {
          var nextNode = ordering[index + 1];
          if (useMap === true && map[nextNode.id] === undefined || useMap === false) {
            var nextPos = this.direction.getPosition(nextNode);
            maxSpace = Math.min(maxSpace, nextPos - position);
          }
        }

        return [minSpace, maxSpace];
      } else {
        return [0, 0];
      }
    }

    /**
     * We use this method to center a parent node and check if it does not cross other nodes when it does.
     * @param {Node} node
     * @private
     */

  }, {
    key: '_centerParent',
    value: function _centerParent(node) {
      if (this.hierarchical.parentReference[node.id]) {
        var parents = this.hierarchical.parentReference[node.id];
        for (var i = 0; i < parents.length; i++) {
          var parentId = parents[i];
          var parentNode = this.body.nodes[parentId];
          var children = this.hierarchical.childrenReference[parentId];

          if (children !== undefined) {
            // get the range of the children
            var newPosition = this._getCenterPosition(children);

            var position = this.direction.getPosition(parentNode);

            var _getSpaceAroundNode6 = this._getSpaceAroundNode(parentNode),
                _getSpaceAroundNode7 = (0, _slicedToArray3['default'])(_getSpaceAroundNode6, 2),
                minSpace = _getSpaceAroundNode7[0],
                maxSpace = _getSpaceAroundNode7[1];

            var diff = position - newPosition;
            if (diff < 0 && Math.abs(diff) < maxSpace - this.options.hierarchical.nodeSpacing || diff > 0 && Math.abs(diff) < minSpace - this.options.hierarchical.nodeSpacing) {
              this.direction.setPosition(parentNode, newPosition);
            }
          }
        }
      }
    }

    /**
     * This function places the nodes on the canvas based on the hierarchial distribution.
     *
     * @param {Object} distribution | obtained by the function this._getDistribution()
     * @private
     */

  }, {
    key: '_placeNodesByHierarchy',
    value: function _placeNodesByHierarchy(distribution) {
      this.positionedNodes = {};
      // start placing all the level 0 nodes first. Then recursively position their branches.
      for (var level in distribution) {
        if (distribution.hasOwnProperty(level)) {
          // sort nodes in level by position:
          var nodeArray = (0, _keys2['default'])(distribution[level]);
          nodeArray = this._indexArrayToNodes(nodeArray);
          this.direction.sort(nodeArray);
          var handledNodeCount = 0;

          for (var i = 0; i < nodeArray.length; i++) {
            var node = nodeArray[i];
            if (this.positionedNodes[node.id] === undefined) {
              var spacing = this.options.hierarchical.nodeSpacing;
              var pos = spacing * handledNodeCount;
              // We get the X or Y values we need and store them in pos and previousPos.
              // The get and set make sure we get X or Y
              if (handledNodeCount > 0) {
                pos = this.direction.getPosition(nodeArray[i - 1]) + spacing;
              }
              this.direction.setPosition(node, pos, level);
              this._validatePositionAndContinue(node, level, pos);

              handledNodeCount++;
            }
          }
        }
      }
    }

    /**
     * This is a recursively called function to enumerate the branches from the largest hubs and place the nodes
     * on a X position that ensures there will be no overlap.
     *
     * @param {Node.id} parentId
     * @param {number} parentLevel
     * @private
     */

  }, {
    key: '_placeBranchNodes',
    value: function _placeBranchNodes(parentId, parentLevel) {
      var childRef = this.hierarchical.childrenReference[parentId];

      // if this is not a parent, cancel the placing. This can happen with multiple parents to one child.
      if (childRef === undefined) {
        return;
      }

      // get a list of childNodes
      var childNodes = [];
      for (var i = 0; i < childRef.length; i++) {
        childNodes.push(this.body.nodes[childRef[i]]);
      }

      // use the positions to order the nodes.
      this.direction.sort(childNodes);

      // position the childNodes
      for (var _i5 = 0; _i5 < childNodes.length; _i5++) {
        var childNode = childNodes[_i5];
        var childNodeLevel = this.hierarchical.levels[childNode.id];
        // check if the child node is below the parent node and if it has already been positioned.
        if (childNodeLevel > parentLevel && this.positionedNodes[childNode.id] === undefined) {
          // get the amount of space required for this node. If parent the width is based on the amount of children.
          var spacing = this.options.hierarchical.nodeSpacing;
          var pos = void 0;

          // we get the X or Y values we need and store them in pos and previousPos.
          // The get and set make sure we get X or Y
          if (_i5 === 0) {
            pos = this.direction.getPosition(this.body.nodes[parentId]);
          } else {
            pos = this.direction.getPosition(childNodes[_i5 - 1]) + spacing;
          }
          this.direction.setPosition(childNode, pos, childNodeLevel);
          this._validatePositionAndContinue(childNode, childNodeLevel, pos);
        } else {
          return;
        }
      }

      // center the parent nodes.
      var center = this._getCenterPosition(childNodes);
      this.direction.setPosition(this.body.nodes[parentId], center, parentLevel);
    }

    /**
     * This method checks for overlap and if required shifts the branch. It also keeps records of positioned nodes.
     * Finally it will call _placeBranchNodes to place the branch nodes.
     * @param {Node} node
     * @param {number} level
     * @param {number} pos
     * @private
     */

  }, {
    key: '_validatePositionAndContinue',
    value: function _validatePositionAndContinue(node, level, pos) {
      // This method only works for formal trees and formal forests
      // Early exit if this is not the case
      if (!this.hierarchical.isTree) return;

      // if overlap has been detected, we shift the branch
      if (this.lastNodeOnLevel[level] !== undefined) {
        var previousPos = this.direction.getPosition(this.body.nodes[this.lastNodeOnLevel[level]]);
        if (pos - previousPos < this.options.hierarchical.nodeSpacing) {
          var diff = previousPos + this.options.hierarchical.nodeSpacing - pos;
          var sharedParent = this._findCommonParent(this.lastNodeOnLevel[level], node.id);
          this._shiftBlock(sharedParent.withChild, diff);
        }
      }

      this.lastNodeOnLevel[level] = node.id; // store change in position.
      this.positionedNodes[node.id] = true;
      this._placeBranchNodes(node.id, level);
    }

    /**
     * Receives an array with node indices and returns an array with the actual node references.
     * Used for sorting based on node properties.
     * @param {Array.<Node.id>} idArray
     * @returns {Array.<Node>}
     */

  }, {
    key: '_indexArrayToNodes',
    value: function _indexArrayToNodes(idArray) {
      var array = [];
      for (var i = 0; i < idArray.length; i++) {
        array.push(this.body.nodes[idArray[i]]);
      }
      return array;
    }

    /**
     * This function get the distribution of levels based on hubsize
     *
     * @returns {Object}
     * @private
     */

  }, {
    key: '_getDistribution',
    value: function _getDistribution() {
      var distribution = {};
      var nodeId = void 0,
          node = void 0;

      // we fix Y because the hierarchy is vertical,
      // we fix X so we do not give a node an x position for a second time.
      // the fix of X is removed after the x value has been set.
      for (nodeId in this.body.nodes) {
        if (this.body.nodes.hasOwnProperty(nodeId)) {
          node = this.body.nodes[nodeId];
          var level = this.hierarchical.levels[nodeId] === undefined ? 0 : this.hierarchical.levels[nodeId];
          this.direction.fix(node, level);
          if (distribution[level] === undefined) {
            distribution[level] = {};
          }
          distribution[level][nodeId] = node;
        }
      }
      return distribution;
    }

    /**
     * Return the active (i.e. visible) edges for this node
     *
     * @param {Node} node
     * @returns {Array.<vis.Edge>} Array of edge instances
     * @private
     */

  }, {
    key: '_getActiveEdges',
    value: function _getActiveEdges(node) {
      var _this4 = this;

      var result = [];

      util.forEach(node.edges, function (edge) {
        if (_this4.body.edgeIndices.indexOf(edge.id) !== -1) {
          result.push(edge);
        }
      });

      return result;
    }

    /**
     * Get the hubsizes for all active nodes.
     *
     * @returns {number}
     * @private
     */

  }, {
    key: '_getHubSizes',
    value: function _getHubSizes() {
      var _this5 = this;

      var hubSizes = {};
      var nodeIds = this.body.nodeIndices;

      util.forEach(nodeIds, function (nodeId) {
        var node = _this5.body.nodes[nodeId];
        var hubSize = _this5._getActiveEdges(node).length;
        hubSizes[hubSize] = true;
      });

      // Make an array of the size sorted descending
      var result = [];
      util.forEach(hubSizes, function (size) {
        result.push(Number(size));
      });

      result.sort(function (a, b) {
        return b - a;
      });

      return result;
    }

    /**
     * this function allocates nodes in levels based on the recursive branching from the largest hubs.
     *
     * @private
     */

  }, {
    key: '_determineLevelsByHubsize',
    value: function _determineLevelsByHubsize() {
      var _this6 = this;

      var levelDownstream = function levelDownstream(nodeA, nodeB) {
        _this6.hierarchical.levelDownstream(nodeA, nodeB);
      };

      var hubSizes = this._getHubSizes();

      var _loop = function _loop(i) {
        var hubSize = hubSizes[i];
        if (hubSize === 0) return 'break';

        util.forEach(_this6.body.nodeIndices, function (nodeId) {
          var node = _this6.body.nodes[nodeId];

          if (hubSize === _this6._getActiveEdges(node).length) {
            _this6._crawlNetwork(levelDownstream, nodeId);
          }
        });
      };

      for (var i = 0; i < hubSizes.length; ++i) {
        var _ret = _loop(i);

        if (_ret === 'break') break;
      }
    }

    /**
     * TODO: release feature
     * TODO: Determine if this feature is needed at all
     *
     * @private
     */

  }, {
    key: '_determineLevelsCustomCallback',
    value: function _determineLevelsCustomCallback() {
      var _this7 = this;

      var minLevel = 100000;

      // TODO: this should come from options.
      var customCallback = function customCallback(nodeA, nodeB, edge) {// eslint-disable-line no-unused-vars

      };

      // TODO: perhaps move to HierarchicalStatus.
      //       But I currently don't see the point, this method is not used.
      var levelByDirection = function levelByDirection(nodeA, nodeB, edge) {
        var levelA = _this7.hierarchical.levels[nodeA.id];
        // set initial level
        if (levelA === undefined) {
          levelA = _this7.hierarchical.levels[nodeA.id] = minLevel;
        }

        var diff = customCallback(NetworkUtil.cloneOptions(nodeA, 'node'), NetworkUtil.cloneOptions(nodeB, 'node'), NetworkUtil.cloneOptions(edge, 'edge'));

        _this7.hierarchical.levels[nodeB.id] = levelA + diff;
      };

      this._crawlNetwork(levelByDirection);
      this.hierarchical.setMinLevelToZero(this.body.nodes);
    }

    /**
     * Allocate nodes in levels based on the direction of the edges.
     *
     * @private
     */

  }, {
    key: '_determineLevelsDirected',
    value: function _determineLevelsDirected() {
      var _this8 = this;

      var minLevel = 10000;

      /**
       * Check if there is an edge going the opposite direction for given edge
       *
       * @param {Edge} edge  edge to check
       * @returns {boolean} true if there's another edge going into the opposite direction
       */
      var isBidirectional = function isBidirectional(edge) {
        util.forEach(_this8.body.edges, function (otherEdge) {
          if (otherEdge.toId === edge.fromId && otherEdge.fromId === edge.toId) {
            return true;
          }
        });

        return false;
      };

      var levelByDirection = function levelByDirection(nodeA, nodeB, edge) {
        var levelA = _this8.hierarchical.levels[nodeA.id];
        var levelB = _this8.hierarchical.levels[nodeB.id];

        if (isBidirectional(edge) && levelA !== undefined && levelB !== undefined) {
          // Don't redo the level determination if already done in this case.
          return;
        }

        // set initial level
        if (levelA === undefined) {
          levelA = _this8.hierarchical.levels[nodeA.id] = minLevel;
        }
        if (edge.toId == nodeB.id) {
          _this8.hierarchical.levels[nodeB.id] = levelA + 1;
        } else {
          _this8.hierarchical.levels[nodeB.id] = levelA - 1;
        }
      };

      this._crawlNetwork(levelByDirection);
      this.hierarchical.setMinLevelToZero(this.body.nodes);
    }

    /**
     * Update the bookkeeping of parent and child.
     * @private
     */

  }, {
    key: '_generateMap',
    value: function _generateMap() {
      var _this9 = this;

      var fillInRelations = function fillInRelations(parentNode, childNode) {
        if (_this9.hierarchical.levels[childNode.id] > _this9.hierarchical.levels[parentNode.id]) {
          _this9.hierarchical.addRelation(parentNode.id, childNode.id);
        }
      };

      this._crawlNetwork(fillInRelations);
      this.hierarchical.checkIfTree();
    }

    /**
     * Crawl over the entire network and use a callback on each node couple that is connected to each other.
     * @param {function} [callback=function(){}]          | will receive nodeA, nodeB and the connecting edge. A and B are distinct.
     * @param {Node.id} startingNodeId
     * @private
     */

  }, {
    key: '_crawlNetwork',
    value: function _crawlNetwork() {
      var _this10 = this;

      var callback = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : function () {};
      var startingNodeId = arguments[1];

      var progress = {};

      var crawler = function crawler(node, tree) {
        if (progress[node.id] === undefined) {
          _this10.hierarchical.setTreeIndex(node, tree);

          progress[node.id] = true;
          var childNode = void 0;
          var edges = _this10._getActiveEdges(node);
          for (var i = 0; i < edges.length; i++) {
            var edge = edges[i];
            if (edge.connected === true) {
              if (edge.toId == node.id) {
                // Not '===' because id's can be string and numeric
                childNode = edge.from;
              } else {
                childNode = edge.to;
              }

              if (node.id != childNode.id) {
                // Not '!==' because id's can be string and numeric
                callback(node, childNode, edge);
                crawler(childNode, tree);
              }
            }
          }
        }
      };

      if (startingNodeId === undefined) {
        // Crawl over all nodes
        var treeIndex = 0; // Serves to pass a unique id for the current distinct tree

        for (var i = 0; i < this.body.nodeIndices.length; i++) {
          var nodeId = this.body.nodeIndices[i];

          if (progress[nodeId] === undefined) {
            var node = this.body.nodes[nodeId];
            crawler(node, treeIndex);
            treeIndex += 1;
          }
        }
      } else {
        // Crawl from the given starting node
        var _node2 = this.body.nodes[startingNodeId];
        if (_node2 === undefined) {
          console.error("Node not found:", startingNodeId);
          return;
        }
        crawler(_node2);
      }
    }

    /**
     * Shift a branch a certain distance
     * @param {Node.id} parentId
     * @param {number} diff
     * @private
     */

  }, {
    key: '_shiftBlock',
    value: function _shiftBlock(parentId, diff) {
      var _this11 = this;

      var progress = {};
      var shifter = function shifter(parentId) {
        if (progress[parentId]) {
          return;
        }
        progress[parentId] = true;
        _this11.direction.shift(parentId, diff);

        var childRef = _this11.hierarchical.childrenReference[parentId];
        if (childRef !== undefined) {
          for (var i = 0; i < childRef.length; i++) {
            shifter(childRef[i]);
          }
        }
      };
      shifter(parentId);
    }

    /**
     * Find a common parent between branches.
     * @param {Node.id} childA
     * @param {Node.id} childB
     * @returns {{foundParent, withChild}}
     * @private
     */

  }, {
    key: '_findCommonParent',
    value: function _findCommonParent(childA, childB) {
      var _this12 = this;

      var parents = {};
      var iterateParents = function iterateParents(parents, child) {
        var parentRef = _this12.hierarchical.parentReference[child];
        if (parentRef !== undefined) {
          for (var i = 0; i < parentRef.length; i++) {
            var parent = parentRef[i];
            parents[parent] = true;
            iterateParents(parents, parent);
          }
        }
      };
      var findParent = function findParent(parents, child) {
        var parentRef = _this12.hierarchical.parentReference[child];
        if (parentRef !== undefined) {
          for (var i = 0; i < parentRef.length; i++) {
            var parent = parentRef[i];
            if (parents[parent] !== undefined) {
              return { foundParent: parent, withChild: child };
            }
            var branch = findParent(parents, parent);
            if (branch.foundParent !== null) {
              return branch;
            }
          }
        }
        return { foundParent: null, withChild: child };
      };

      iterateParents(parents, childA);
      return findParent(parents, childB);
    }

    /**
     * Set the strategy pattern for handling the coordinates given the current direction.
     *
     * The individual instances contain all the operations and data specific to a layout direction.
     *
     * @param {Node} node
     * @param {{x: number, y: number}} position
     * @param {number} level
     * @param {boolean} [doNotUpdate=false]
     * @private
     */

  }, {
    key: 'setDirectionStrategy',
    value: function setDirectionStrategy() {
      var isVertical = this.options.hierarchical.direction === 'UD' || this.options.hierarchical.direction === 'DU';

      if (isVertical) {
        this.direction = new VerticalStrategy(this);
      } else {
        this.direction = new HorizontalStrategy(this);
      }
    }

    /**
     * Determine the center position of a branch from the passed list of child nodes
     *
     * This takes into account the positions of all the child nodes.
     * @param {Array.<Node|vis.Node.id>} childNodes  Array of either child nodes or node id's
     * @return {number}
     * @private
     */

  }, {
    key: '_getCenterPosition',
    value: function _getCenterPosition(childNodes) {
      var minPos = 1e9;
      var maxPos = -1e9;

      for (var i = 0; i < childNodes.length; i++) {
        var childNode = void 0;
        if (childNodes[i].id !== undefined) {
          childNode = childNodes[i];
        } else {
          var childNodeId = childNodes[i];
          childNode = this.body.nodes[childNodeId];
        }

        var position = this.direction.getPosition(childNode);
        minPos = Math.min(minPos, position);
        maxPos = Math.max(maxPos, position);
      }

      return 0.5 * (minPos + maxPos);
    }
  }]);
  return LayoutEngine;
}();

exports['default'] = LayoutEngine;

/***/ }),
/* 236 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.VerticalStrategy = exports.HorizontalStrategy = undefined;

var _getPrototypeOf = __webpack_require__(3);

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _possibleConstructorReturn2 = __webpack_require__(4);

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = __webpack_require__(5);

var _inherits3 = _interopRequireDefault(_inherits2);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

/**
 * Helper classes for LayoutEngine.
 *
 * Strategy pattern for usage of direction methods for hierarchical layouts.
 */

/**
 * Interface definition for direction strategy classes.
 *
 * This class describes the interface for the Strategy
 * pattern classes used to differentiate horizontal and vertical
 * direction of hierarchical results.
 *
 * For a given direction, one coordinate will be 'fixed', meaning that it is
 * determined by level.
 * The other coordinate is 'unfixed', meaning that the nodes on a given level
 * can still move along that coordinate. So:
 *
 * - `vertical` layout: `x` unfixed, `y` fixed per level
 * - `horizontal` layout: `x` fixed per level, `y` unfixed
 *
 * The local methods are stubs and should be regarded as abstract.
 * Derived classes **must** implement all the methods themselves.
 *
 * @private
 */
var DirectionInterface = function () {
  function DirectionInterface() {
    (0, _classCallCheck3['default'])(this, DirectionInterface);
  }

  (0, _createClass3['default'])(DirectionInterface, [{
    key: 'abstract',

    /** @ignore **/
    value: function abstract() {
      throw new Error("Can't instantiate abstract class!");
    }

    /**
     * This is a dummy call which is used to suppress the jsdoc errors of type:
     *
     *   "'param' is assigned a value but never used"
     *
     * @ignore
     **/

  }, {
    key: 'fake_use',
    value: function fake_use() {}
    // Do nothing special


    /**
     * Type to use to translate dynamic curves to, in the case of hierarchical layout.
     * Dynamic curves do not work for these.
     *
     * The value should be perpendicular to the actual direction of the layout.
     *
     * @return {string} Direction, either 'vertical' or 'horizontal'
     */

  }, {
    key: 'curveType',
    value: function curveType() {
      return this.abstract();
    }

    /**
     * Return the value of the coordinate that is not fixed for this direction.
     *
     * @param {Node} node The node to read
     * @return {number} Value of the unfixed coordinate
     */

  }, {
    key: 'getPosition',
    value: function getPosition(node) {
      this.fake_use(node);return this.abstract();
    }

    /**
     * Set the value of the coordinate that is not fixed for this direction.
     *
     * @param {Node} node The node to adjust
     * @param {number} position
     * @param {number} [level] if specified, the hierarchy level that this node should be fixed to
     */

  }, {
    key: 'setPosition',
    value: function setPosition(node, position) {
      var level = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : undefined;
      this.fake_use(node, position, level);this.abstract();
    }

    /**
     * Get the width of a tree.
     *
     * A `tree` here is a subset of nodes within the network which are not connected to other nodes,
     * only among themselves. In essence, it is a sub-network.
     *
     * @param {number} index The index number of a tree
     * @return {number} the width of a tree in the view coordinates
     */

  }, {
    key: 'getTreeSize',
    value: function getTreeSize(index) {
      this.fake_use(index);return this.abstract();
    }

    /**
     * Sort array of nodes on the unfixed coordinates.
     *
     * @param {Array.<Node>} nodeArray array of nodes to sort
     */

  }, {
    key: 'sort',
    value: function sort(nodeArray) {
      this.fake_use(nodeArray);this.abstract();
    }

    /**
     * Assign the fixed coordinate of the node to the given level
     *
     * @param {Node} node The node to adjust
     * @param {number} level The level to fix to
     */

  }, {
    key: 'fix',
    value: function fix(node, level) {
      this.fake_use(node, level);this.abstract();
    }

    /**
     * Add an offset to the unfixed coordinate of the given node. 
     *
     * @param {NodeId} nodeId Id of the node to adjust
     * @param {number} diff Offset to add to the unfixed coordinate
     */

  }, {
    key: 'shift',
    value: function shift(nodeId, diff) {
      this.fake_use(nodeId, diff);this.abstract();
    }
  }]);
  return DirectionInterface;
}();

/**
 * Vertical Strategy
 *
 * Coordinate `y` is fixed on levels, coordinate `x` is unfixed.
 *
 * @extends DirectionInterface
 * @private
 */


var VerticalStrategy = function (_DirectionInterface) {
  (0, _inherits3['default'])(VerticalStrategy, _DirectionInterface);

  /**
   * Constructor
   *
   * @param {Object} layout reference to the parent LayoutEngine instance.
   */
  function VerticalStrategy(layout) {
    (0, _classCallCheck3['default'])(this, VerticalStrategy);

    var _this = (0, _possibleConstructorReturn3['default'])(this, (VerticalStrategy.__proto__ || (0, _getPrototypeOf2['default'])(VerticalStrategy)).call(this));

    _this.layout = layout;
    return _this;
  }

  /** @inheritdoc */


  (0, _createClass3['default'])(VerticalStrategy, [{
    key: 'curveType',
    value: function curveType() {
      return 'horizontal';
    }

    /** @inheritdoc */

  }, {
    key: 'getPosition',
    value: function getPosition(node) {
      return node.x;
    }

    /** @inheritdoc */

  }, {
    key: 'setPosition',
    value: function setPosition(node, position) {
      var level = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : undefined;

      if (level !== undefined) {
        this.layout.hierarchical.addToOrdering(node, level);
      }
      node.x = position;
    }

    /** @inheritdoc */

  }, {
    key: 'getTreeSize',
    value: function getTreeSize(index) {
      var res = this.layout.hierarchical.getTreeSize(this.layout.body.nodes, index);
      return { min: res.min_x, max: res.max_x };
    }

    /** @inheritdoc */

  }, {
    key: 'sort',
    value: function sort(nodeArray) {
      nodeArray.sort(function (a, b) {
        // Test on 'undefined' takes care of divergent behaviour in chrome
        if (a.x === undefined || b.x === undefined) return 0; // THIS HAPPENS
        return a.x - b.x;
      });
    }

    /** @inheritdoc */

  }, {
    key: 'fix',
    value: function fix(node, level) {
      node.y = this.layout.options.hierarchical.levelSeparation * level;
      node.options.fixed.y = true;
    }

    /** @inheritdoc */

  }, {
    key: 'shift',
    value: function shift(nodeId, diff) {
      this.layout.body.nodes[nodeId].x += diff;
    }
  }]);
  return VerticalStrategy;
}(DirectionInterface);

/**
 * Horizontal Strategy
 *
 * Coordinate `x` is fixed on levels, coordinate `y` is unfixed.
 *
 * @extends DirectionInterface
 * @private
 */


var HorizontalStrategy = function (_DirectionInterface2) {
  (0, _inherits3['default'])(HorizontalStrategy, _DirectionInterface2);

  /**
   * Constructor
   *
   * @param {Object} layout reference to the parent LayoutEngine instance.
   */
  function HorizontalStrategy(layout) {
    (0, _classCallCheck3['default'])(this, HorizontalStrategy);

    var _this2 = (0, _possibleConstructorReturn3['default'])(this, (HorizontalStrategy.__proto__ || (0, _getPrototypeOf2['default'])(HorizontalStrategy)).call(this));

    _this2.layout = layout;
    return _this2;
  }

  /** @inheritdoc */


  (0, _createClass3['default'])(HorizontalStrategy, [{
    key: 'curveType',
    value: function curveType() {
      return 'vertical';
    }

    /** @inheritdoc */

  }, {
    key: 'getPosition',
    value: function getPosition(node) {
      return node.y;
    }

    /** @inheritdoc */

  }, {
    key: 'setPosition',
    value: function setPosition(node, position) {
      var level = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : undefined;

      if (level !== undefined) {
        this.layout.hierarchical.addToOrdering(node, level);
      }
      node.y = position;
    }

    /** @inheritdoc */

  }, {
    key: 'getTreeSize',
    value: function getTreeSize(index) {
      var res = this.layout.hierarchical.getTreeSize(this.layout.body.nodes, index);
      return { min: res.min_y, max: res.max_y };
    }

    /** @inheritdoc */

  }, {
    key: 'sort',
    value: function sort(nodeArray) {
      nodeArray.sort(function (a, b) {
        // Test on 'undefined' takes care of divergent behaviour in chrome
        if (a.y === undefined || b.y === undefined) return 0; // THIS HAPPENS
        return a.y - b.y;
      });
    }

    /** @inheritdoc */

  }, {
    key: 'fix',
    value: function fix(node, level) {
      node.x = this.layout.options.hierarchical.levelSeparation * level;
      node.options.fixed.x = true;
    }

    /** @inheritdoc */

  }, {
    key: 'shift',
    value: function shift(nodeId, diff) {
      this.layout.body.nodes[nodeId].y += diff;
    }
  }]);
  return HorizontalStrategy;
}(DirectionInterface);

exports.HorizontalStrategy = HorizontalStrategy;
exports.VerticalStrategy = VerticalStrategy;

/***/ }),
/* 237 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _keys = __webpack_require__(8);

var _keys2 = _interopRequireDefault(_keys);

var _stringify = __webpack_require__(19);

var _stringify2 = _interopRequireDefault(_stringify);

var _typeof2 = __webpack_require__(6);

var _typeof3 = _interopRequireDefault(_typeof2);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var util = __webpack_require__(2);
var Hammer = __webpack_require__(10);
var hammerUtil = __webpack_require__(37);

/**
 * Clears the toolbar div element of children
 *
 * @private
 */

var ManipulationSystem = function () {
  /**
   * @param {Object} body
   * @param {Canvas} canvas
   * @param {SelectionHandler} selectionHandler
   */
  function ManipulationSystem(body, canvas, selectionHandler) {
    var _this = this;

    (0, _classCallCheck3['default'])(this, ManipulationSystem);

    this.body = body;
    this.canvas = canvas;
    this.selectionHandler = selectionHandler;

    this.editMode = false;
    this.manipulationDiv = undefined;
    this.editModeDiv = undefined;
    this.closeDiv = undefined;

    this.manipulationHammers = [];
    this.temporaryUIFunctions = {};
    this.temporaryEventFunctions = [];

    this.touchTime = 0;
    this.temporaryIds = { nodes: [], edges: [] };
    this.guiEnabled = false;
    this.inMode = false;
    this.selectedControlNode = undefined;

    this.options = {};
    this.defaultOptions = {
      enabled: false,
      initiallyActive: false,
      addNode: true,
      addEdge: true,
      editNode: undefined,
      editEdge: true,
      deleteNode: true,
      deleteEdge: true,
      controlNodeStyle: {
        shape: 'dot',
        size: 6,
        color: { background: '#ff0000', border: '#3c3c3c', highlight: { background: '#07f968', border: '#3c3c3c' } },
        borderWidth: 2,
        borderWidthSelected: 2
      }
    };
    util.extend(this.options, this.defaultOptions);

    this.body.emitter.on('destroy', function () {
      _this._clean();
    });
    this.body.emitter.on('_dataChanged', this._restore.bind(this));
    this.body.emitter.on('_resetData', this._restore.bind(this));
  }

  /**
   * If something changes in the data during editing, switch back to the initial datamanipulation state and close all edit modes.
   * @private
   */


  (0, _createClass3['default'])(ManipulationSystem, [{
    key: '_restore',
    value: function _restore() {
      if (this.inMode !== false) {
        if (this.options.initiallyActive === true) {
          this.enableEditMode();
        } else {
          this.disableEditMode();
        }
      }
    }

    /**
     * Set the Options
     *
     * @param {Object} options
     * @param {Object} allOptions
     * @param {Object} globalOptions
     */

  }, {
    key: 'setOptions',
    value: function setOptions(options, allOptions, globalOptions) {
      if (allOptions !== undefined) {
        if (allOptions.locale !== undefined) {
          this.options.locale = allOptions.locale;
        } else {
          this.options.locale = globalOptions.locale;
        }
        if (allOptions.locales !== undefined) {
          this.options.locales = allOptions.locales;
        } else {
          this.options.locales = globalOptions.locales;
        }
      }

      if (options !== undefined) {
        if (typeof options === 'boolean') {
          this.options.enabled = options;
        } else {
          this.options.enabled = true;
          util.deepExtend(this.options, options);
        }
        if (this.options.initiallyActive === true) {
          this.editMode = true;
        }
        this._setup();
      }
    }

    /**
     * Enable or disable edit-mode. Draws the DOM required and cleans up after itself.
     *
     * @private
     */

  }, {
    key: 'toggleEditMode',
    value: function toggleEditMode() {
      if (this.editMode === true) {
        this.disableEditMode();
      } else {
        this.enableEditMode();
      }
    }

    /**
     * Enables Edit Mode
     */

  }, {
    key: 'enableEditMode',
    value: function enableEditMode() {
      this.editMode = true;

      this._clean();
      if (this.guiEnabled === true) {
        this.manipulationDiv.style.display = 'block';
        this.closeDiv.style.display = 'block';
        this.editModeDiv.style.display = 'none';
        this.showManipulatorToolbar();
      }
    }

    /**
     * Disables Edit Mode
     */

  }, {
    key: 'disableEditMode',
    value: function disableEditMode() {
      this.editMode = false;

      this._clean();
      if (this.guiEnabled === true) {
        this.manipulationDiv.style.display = 'none';
        this.closeDiv.style.display = 'none';
        this.editModeDiv.style.display = 'block';
        this._createEditButton();
      }
    }

    /**
     * Creates the main toolbar. Removes functions bound to the select event. Binds all the buttons of the toolbar.
     *
     * @private
     */

  }, {
    key: 'showManipulatorToolbar',
    value: function showManipulatorToolbar() {
      // restore the state of any bound functions or events, remove control nodes, restore physics
      this._clean();

      // reset global variables
      this.manipulationDOM = {};

      // if the gui is enabled, draw all elements.
      if (this.guiEnabled === true) {
        // a _restore will hide these menus
        this.editMode = true;
        this.manipulationDiv.style.display = 'block';
        this.closeDiv.style.display = 'block';

        var selectedNodeCount = this.selectionHandler._getSelectedNodeCount();
        var selectedEdgeCount = this.selectionHandler._getSelectedEdgeCount();
        var selectedTotalCount = selectedNodeCount + selectedEdgeCount;
        var locale = this.options.locales[this.options.locale];
        var needSeperator = false;

        if (this.options.addNode !== false) {
          this._createAddNodeButton(locale);
          needSeperator = true;
        }
        if (this.options.addEdge !== false) {
          if (needSeperator === true) {
            this._createSeperator(1);
          } else {
            needSeperator = true;
          }
          this._createAddEdgeButton(locale);
        }

        if (selectedNodeCount === 1 && typeof this.options.editNode === 'function') {
          if (needSeperator === true) {
            this._createSeperator(2);
          } else {
            needSeperator = true;
          }
          this._createEditNodeButton(locale);
        } else if (selectedEdgeCount === 1 && selectedNodeCount === 0 && this.options.editEdge !== false) {
          if (needSeperator === true) {
            this._createSeperator(3);
          } else {
            needSeperator = true;
          }
          this._createEditEdgeButton(locale);
        }

        // remove buttons
        if (selectedTotalCount !== 0) {
          if (selectedNodeCount > 0 && this.options.deleteNode !== false) {
            if (needSeperator === true) {
              this._createSeperator(4);
            }
            this._createDeleteButton(locale);
          } else if (selectedNodeCount === 0 && this.options.deleteEdge !== false) {
            if (needSeperator === true) {
              this._createSeperator(4);
            }
            this._createDeleteButton(locale);
          }
        }

        // bind the close button
        this._bindHammerToDiv(this.closeDiv, this.toggleEditMode.bind(this));

        // refresh this bar based on what has been selected
        this._temporaryBindEvent('select', this.showManipulatorToolbar.bind(this));
      }

      // redraw to show any possible changes
      this.body.emitter.emit('_redraw');
    }

    /**
     * Create the toolbar for adding Nodes
     */

  }, {
    key: 'addNodeMode',
    value: function addNodeMode() {
      // when using the gui, enable edit mode if it wasnt already.
      if (this.editMode !== true) {
        this.enableEditMode();
      }

      // restore the state of any bound functions or events, remove control nodes, restore physics
      this._clean();

      this.inMode = 'addNode';
      if (this.guiEnabled === true) {
        var locale = this.options.locales[this.options.locale];
        this.manipulationDOM = {};
        this._createBackButton(locale);
        this._createSeperator();
        this._createDescription(locale['addDescription'] || this.options.locales['en']['addDescription']);

        // bind the close button
        this._bindHammerToDiv(this.closeDiv, this.toggleEditMode.bind(this));
      }

      this._temporaryBindEvent('click', this._performAddNode.bind(this));
    }

    /**
     * call the bound function to handle the editing of the node. The node has to be selected.
     */

  }, {
    key: 'editNode',
    value: function editNode() {
      var _this2 = this;

      // when using the gui, enable edit mode if it wasnt already.
      if (this.editMode !== true) {
        this.enableEditMode();
      }

      // restore the state of any bound functions or events, remove control nodes, restore physics
      this._clean();
      var node = this.selectionHandler._getSelectedNode();
      if (node !== undefined) {
        this.inMode = 'editNode';
        if (typeof this.options.editNode === 'function') {
          if (node.isCluster !== true) {
            var data = util.deepExtend({}, node.options, false);
            data.x = node.x;
            data.y = node.y;

            if (this.options.editNode.length === 2) {
              this.options.editNode(data, function (finalizedData) {
                if (finalizedData !== null && finalizedData !== undefined && _this2.inMode === 'editNode') {
                  // if for whatever reason the mode has changes (due to dataset change) disregard the callback) {
                  _this2.body.data.nodes.getDataSet().update(finalizedData);
                }
                _this2.showManipulatorToolbar();
              });
            } else {
              throw new Error('The function for edit does not support two arguments (data, callback)');
            }
          } else {
            alert(this.options.locales[this.options.locale]['editClusterError'] || this.options.locales['en']['editClusterError']);
          }
        } else {
          throw new Error('No function has been configured to handle the editing of nodes.');
        }
      } else {
        this.showManipulatorToolbar();
      }
    }

    /**
     * create the toolbar to connect nodes
     */

  }, {
    key: 'addEdgeMode',
    value: function addEdgeMode() {
      // when using the gui, enable edit mode if it wasnt already.
      if (this.editMode !== true) {
        this.enableEditMode();
      }

      // restore the state of any bound functions or events, remove control nodes, restore physics
      this._clean();

      this.inMode = 'addEdge';
      if (this.guiEnabled === true) {
        var locale = this.options.locales[this.options.locale];
        this.manipulationDOM = {};
        this._createBackButton(locale);
        this._createSeperator();
        this._createDescription(locale['edgeDescription'] || this.options.locales['en']['edgeDescription']);

        // bind the close button
        this._bindHammerToDiv(this.closeDiv, this.toggleEditMode.bind(this));
      }

      // temporarily overload functions
      this._temporaryBindUI('onTouch', this._handleConnect.bind(this));
      this._temporaryBindUI('onDragEnd', this._finishConnect.bind(this));
      this._temporaryBindUI('onDrag', this._dragControlNode.bind(this));
      this._temporaryBindUI('onRelease', this._finishConnect.bind(this));
      this._temporaryBindUI('onDragStart', this._dragStartEdge.bind(this));
      this._temporaryBindUI('onHold', function () {});
    }

    /**
     * create the toolbar to edit edges
     */

  }, {
    key: 'editEdgeMode',
    value: function editEdgeMode() {
      // when using the gui, enable edit mode if it wasn't already.
      if (this.editMode !== true) {
        this.enableEditMode();
      }

      // restore the state of any bound functions or events, remove control nodes, restore physics
      this._clean();

      this.inMode = 'editEdge';
      if ((0, _typeof3['default'])(this.options.editEdge) === 'object' && typeof this.options.editEdge.editWithoutDrag === "function") {
        this.edgeBeingEditedId = this.selectionHandler.getSelectedEdges()[0];
        if (this.edgeBeingEditedId !== undefined) {
          var edge = this.body.edges[this.edgeBeingEditedId];
          this._performEditEdge(edge.from, edge.to);
          return;
        }
      }
      if (this.guiEnabled === true) {
        var locale = this.options.locales[this.options.locale];
        this.manipulationDOM = {};
        this._createBackButton(locale);
        this._createSeperator();
        this._createDescription(locale['editEdgeDescription'] || this.options.locales['en']['editEdgeDescription']);

        // bind the close button
        this._bindHammerToDiv(this.closeDiv, this.toggleEditMode.bind(this));
      }

      this.edgeBeingEditedId = this.selectionHandler.getSelectedEdges()[0];
      if (this.edgeBeingEditedId !== undefined) {
        var _edge = this.body.edges[this.edgeBeingEditedId];

        // create control nodes
        var controlNodeFrom = this._getNewTargetNode(_edge.from.x, _edge.from.y);
        var controlNodeTo = this._getNewTargetNode(_edge.to.x, _edge.to.y);

        this.temporaryIds.nodes.push(controlNodeFrom.id);
        this.temporaryIds.nodes.push(controlNodeTo.id);

        this.body.nodes[controlNodeFrom.id] = controlNodeFrom;
        this.body.nodeIndices.push(controlNodeFrom.id);
        this.body.nodes[controlNodeTo.id] = controlNodeTo;
        this.body.nodeIndices.push(controlNodeTo.id);

        // temporarily overload UI functions, cleaned up automatically because of _temporaryBindUI
        this._temporaryBindUI('onTouch', this._controlNodeTouch.bind(this)); // used to get the position
        this._temporaryBindUI('onTap', function () {}); // disabled
        this._temporaryBindUI('onHold', function () {}); // disabled
        this._temporaryBindUI('onDragStart', this._controlNodeDragStart.bind(this)); // used to select control node
        this._temporaryBindUI('onDrag', this._controlNodeDrag.bind(this)); // used to drag control node
        this._temporaryBindUI('onDragEnd', this._controlNodeDragEnd.bind(this)); // used to connect or revert control nodes
        this._temporaryBindUI('onMouseMove', function () {}); // disabled

        // create function to position control nodes correctly on movement
        // automatically cleaned up because we use the temporary bind
        this._temporaryBindEvent('beforeDrawing', function (ctx) {
          var positions = _edge.edgeType.findBorderPositions(ctx);
          if (controlNodeFrom.selected === false) {
            controlNodeFrom.x = positions.from.x;
            controlNodeFrom.y = positions.from.y;
          }
          if (controlNodeTo.selected === false) {
            controlNodeTo.x = positions.to.x;
            controlNodeTo.y = positions.to.y;
          }
        });

        this.body.emitter.emit('_redraw');
      } else {
        this.showManipulatorToolbar();
      }
    }

    /**
     * delete everything in the selection
     */

  }, {
    key: 'deleteSelected',
    value: function deleteSelected() {
      var _this3 = this;

      // when using the gui, enable edit mode if it wasnt already.
      if (this.editMode !== true) {
        this.enableEditMode();
      }

      // restore the state of any bound functions or events, remove control nodes, restore physics
      this._clean();

      this.inMode = 'delete';
      var selectedNodes = this.selectionHandler.getSelectedNodes();
      var selectedEdges = this.selectionHandler.getSelectedEdges();
      var deleteFunction = undefined;
      if (selectedNodes.length > 0) {
        for (var i = 0; i < selectedNodes.length; i++) {
          if (this.body.nodes[selectedNodes[i]].isCluster === true) {
            alert(this.options.locales[this.options.locale]['deleteClusterError'] || this.options.locales['en']['deleteClusterError']);
            return;
          }
        }

        if (typeof this.options.deleteNode === 'function') {
          deleteFunction = this.options.deleteNode;
        }
      } else if (selectedEdges.length > 0) {
        if (typeof this.options.deleteEdge === 'function') {
          deleteFunction = this.options.deleteEdge;
        }
      }

      if (typeof deleteFunction === 'function') {
        var data = { nodes: selectedNodes, edges: selectedEdges };
        if (deleteFunction.length === 2) {
          deleteFunction(data, function (finalizedData) {
            if (finalizedData !== null && finalizedData !== undefined && _this3.inMode === 'delete') {
              // if for whatever reason the mode has changes (due to dataset change) disregard the callback) {
              _this3.body.data.edges.getDataSet().remove(finalizedData.edges);
              _this3.body.data.nodes.getDataSet().remove(finalizedData.nodes);
              _this3.body.emitter.emit('startSimulation');
              _this3.showManipulatorToolbar();
            } else {
              _this3.body.emitter.emit('startSimulation');
              _this3.showManipulatorToolbar();
            }
          });
        } else {
          throw new Error('The function for delete does not support two arguments (data, callback)');
        }
      } else {
        this.body.data.edges.getDataSet().remove(selectedEdges);
        this.body.data.nodes.getDataSet().remove(selectedNodes);
        this.body.emitter.emit('startSimulation');
        this.showManipulatorToolbar();
      }
    }

    //********************************************** PRIVATE ***************************************//

    /**
     * draw or remove the DOM
     * @private
     */

  }, {
    key: '_setup',
    value: function _setup() {
      if (this.options.enabled === true) {
        // Enable the GUI
        this.guiEnabled = true;

        this._createWrappers();
        if (this.editMode === false) {
          this._createEditButton();
        } else {
          this.showManipulatorToolbar();
        }
      } else {
        this._removeManipulationDOM();

        // disable the gui
        this.guiEnabled = false;
      }
    }

    /**
     * create the div overlays that contain the DOM
     * @private
     */

  }, {
    key: '_createWrappers',
    value: function _createWrappers() {
      // load the manipulator HTML elements. All styling done in css.
      if (this.manipulationDiv === undefined) {
        this.manipulationDiv = document.createElement('div');
        this.manipulationDiv.className = 'vis-manipulation';
        if (this.editMode === true) {
          this.manipulationDiv.style.display = 'block';
        } else {
          this.manipulationDiv.style.display = 'none';
        }
        this.canvas.frame.appendChild(this.manipulationDiv);
      }

      // container for the edit button.
      if (this.editModeDiv === undefined) {
        this.editModeDiv = document.createElement('div');
        this.editModeDiv.className = 'vis-edit-mode';
        if (this.editMode === true) {
          this.editModeDiv.style.display = 'none';
        } else {
          this.editModeDiv.style.display = 'block';
        }
        this.canvas.frame.appendChild(this.editModeDiv);
      }

      // container for the close div button
      if (this.closeDiv === undefined) {
        this.closeDiv = document.createElement('div');
        this.closeDiv.className = 'vis-close';
        this.closeDiv.style.display = this.manipulationDiv.style.display;
        this.canvas.frame.appendChild(this.closeDiv);
      }
    }

    /**
     * generate a new target node. Used for creating new edges and editing edges
     *
     * @param {number} x
     * @param {number} y
     * @returns {Node}
     * @private
     */

  }, {
    key: '_getNewTargetNode',
    value: function _getNewTargetNode(x, y) {
      var controlNodeStyle = util.deepExtend({}, this.options.controlNodeStyle);

      controlNodeStyle.id = 'targetNode' + util.randomUUID();
      controlNodeStyle.hidden = false;
      controlNodeStyle.physics = false;
      controlNodeStyle.x = x;
      controlNodeStyle.y = y;

      // we have to define the bounding box in order for the nodes to be drawn immediately
      var node = this.body.functions.createNode(controlNodeStyle);
      node.shape.boundingBox = { left: x, right: x, top: y, bottom: y };

      return node;
    }

    /**
     * Create the edit button
     */

  }, {
    key: '_createEditButton',
    value: function _createEditButton() {
      // restore everything to it's original state (if applicable)
      this._clean();

      // reset the manipulationDOM
      this.manipulationDOM = {};

      // empty the editModeDiv
      util.recursiveDOMDelete(this.editModeDiv);

      // create the contents for the editMode button
      var locale = this.options.locales[this.options.locale];
      var button = this._createButton('editMode', 'vis-button vis-edit vis-edit-mode', locale['edit'] || this.options.locales['en']['edit']);
      this.editModeDiv.appendChild(button);

      // bind a hammer listener to the button, calling the function toggleEditMode.
      this._bindHammerToDiv(button, this.toggleEditMode.bind(this));
    }

    /**
     * this function cleans up after everything this module does. Temporary elements, functions and events are removed, physics restored, hammers removed.
     * @private
     */

  }, {
    key: '_clean',
    value: function _clean() {
      // not in mode
      this.inMode = false;

      // _clean the divs
      if (this.guiEnabled === true) {
        util.recursiveDOMDelete(this.editModeDiv);
        util.recursiveDOMDelete(this.manipulationDiv);

        // removes all the bindings and overloads
        this._cleanManipulatorHammers();
      }

      // remove temporary nodes and edges
      this._cleanupTemporaryNodesAndEdges();

      // restore overloaded UI functions
      this._unbindTemporaryUIs();

      // remove the temporaryEventFunctions
      this._unbindTemporaryEvents();

      // restore the physics if required
      this.body.emitter.emit('restorePhysics');
    }

    /**
     * Each dom element has it's own hammer. They are stored in this.manipulationHammers. This cleans them up.
     * @private
     */

  }, {
    key: '_cleanManipulatorHammers',
    value: function _cleanManipulatorHammers() {
      // _clean hammer bindings
      if (this.manipulationHammers.length != 0) {
        for (var i = 0; i < this.manipulationHammers.length; i++) {
          this.manipulationHammers[i].destroy();
        }
        this.manipulationHammers = [];
      }
    }

    /**
     * Remove all DOM elements created by this module.
     * @private
     */

  }, {
    key: '_removeManipulationDOM',
    value: function _removeManipulationDOM() {
      // removes all the bindings and overloads
      this._clean();

      // empty the manipulation divs
      util.recursiveDOMDelete(this.manipulationDiv);
      util.recursiveDOMDelete(this.editModeDiv);
      util.recursiveDOMDelete(this.closeDiv);

      // remove the manipulation divs
      if (this.manipulationDiv) {
        this.canvas.frame.removeChild(this.manipulationDiv);
      }
      if (this.editModeDiv) {
        this.canvas.frame.removeChild(this.editModeDiv);
      }
      if (this.closeDiv) {
        this.canvas.frame.removeChild(this.closeDiv);
      }

      // set the references to undefined
      this.manipulationDiv = undefined;
      this.editModeDiv = undefined;
      this.closeDiv = undefined;
    }

    /**
     * create a seperator line. the index is to differentiate in the manipulation dom
     * @param {number} [index=1]
     * @private
     */

  }, {
    key: '_createSeperator',
    value: function _createSeperator() {
      var index = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1;

      this.manipulationDOM['seperatorLineDiv' + index] = document.createElement('div');
      this.manipulationDOM['seperatorLineDiv' + index].className = 'vis-separator-line';
      this.manipulationDiv.appendChild(this.manipulationDOM['seperatorLineDiv' + index]);
    }

    // ----------------------    DOM functions for buttons    --------------------------//

    /**
     *
     * @param {Locale} locale
     * @private
     */

  }, {
    key: '_createAddNodeButton',
    value: function _createAddNodeButton(locale) {
      var button = this._createButton('addNode', 'vis-button vis-add', locale['addNode'] || this.options.locales['en']['addNode']);
      this.manipulationDiv.appendChild(button);
      this._bindHammerToDiv(button, this.addNodeMode.bind(this));
    }

    /**
     *
     * @param {Locale} locale
     * @private
     */

  }, {
    key: '_createAddEdgeButton',
    value: function _createAddEdgeButton(locale) {
      var button = this._createButton('addEdge', 'vis-button vis-connect', locale['addEdge'] || this.options.locales['en']['addEdge']);
      this.manipulationDiv.appendChild(button);
      this._bindHammerToDiv(button, this.addEdgeMode.bind(this));
    }

    /**
     *
     * @param {Locale} locale
     * @private
     */

  }, {
    key: '_createEditNodeButton',
    value: function _createEditNodeButton(locale) {
      var button = this._createButton('editNode', 'vis-button vis-edit', locale['editNode'] || this.options.locales['en']['editNode']);
      this.manipulationDiv.appendChild(button);
      this._bindHammerToDiv(button, this.editNode.bind(this));
    }

    /**
     *
     * @param {Locale} locale
     * @private
     */

  }, {
    key: '_createEditEdgeButton',
    value: function _createEditEdgeButton(locale) {
      var button = this._createButton('editEdge', 'vis-button vis-edit', locale['editEdge'] || this.options.locales['en']['editEdge']);
      this.manipulationDiv.appendChild(button);
      this._bindHammerToDiv(button, this.editEdgeMode.bind(this));
    }

    /**
     *
     * @param {Locale} locale
     * @private
     */

  }, {
    key: '_createDeleteButton',
    value: function _createDeleteButton(locale) {
      var deleteBtnClass;
      if (this.options.rtl) {
        deleteBtnClass = 'vis-button vis-delete-rtl';
      } else {
        deleteBtnClass = 'vis-button vis-delete';
      }
      var button = this._createButton('delete', deleteBtnClass, locale['del'] || this.options.locales['en']['del']);
      this.manipulationDiv.appendChild(button);
      this._bindHammerToDiv(button, this.deleteSelected.bind(this));
    }

    /**
     *
     * @param {Locale} locale
     * @private
     */

  }, {
    key: '_createBackButton',
    value: function _createBackButton(locale) {
      var button = this._createButton('back', 'vis-button vis-back', locale['back'] || this.options.locales['en']['back']);
      this.manipulationDiv.appendChild(button);
      this._bindHammerToDiv(button, this.showManipulatorToolbar.bind(this));
    }

    /**
     *
     * @param {number|string} id
     * @param {string} className
     * @param {label} label
     * @param {string} labelClassName
     * @returns {HTMLElement}
     * @private
     */

  }, {
    key: '_createButton',
    value: function _createButton(id, className, label) {
      var labelClassName = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 'vis-label';


      this.manipulationDOM[id + 'Div'] = document.createElement('div');
      this.manipulationDOM[id + 'Div'].className = className;
      this.manipulationDOM[id + 'Label'] = document.createElement('div');
      this.manipulationDOM[id + 'Label'].className = labelClassName;
      this.manipulationDOM[id + 'Label'].innerHTML = label;
      this.manipulationDOM[id + 'Div'].appendChild(this.manipulationDOM[id + 'Label']);
      return this.manipulationDOM[id + 'Div'];
    }

    /**
     *
     * @param {Label} label
     * @private
     */

  }, {
    key: '_createDescription',
    value: function _createDescription(label) {
      this.manipulationDiv.appendChild(this._createButton('description', 'vis-button vis-none', label));
    }

    // -------------------------- End of DOM functions for buttons ------------------------------//

    /**
     * this binds an event until cleanup by the clean functions.
     * @param {Event}  event   The event
     * @param {function} newFunction
     * @private
     */

  }, {
    key: '_temporaryBindEvent',
    value: function _temporaryBindEvent(event, newFunction) {
      this.temporaryEventFunctions.push({ event: event, boundFunction: newFunction });
      this.body.emitter.on(event, newFunction);
    }

    /**
     * this overrides an UI function until cleanup by the clean function
     * @param {string} UIfunctionName
     * @param {function} newFunction
     * @private
     */

  }, {
    key: '_temporaryBindUI',
    value: function _temporaryBindUI(UIfunctionName, newFunction) {
      if (this.body.eventListeners[UIfunctionName] !== undefined) {
        this.temporaryUIFunctions[UIfunctionName] = this.body.eventListeners[UIfunctionName];
        this.body.eventListeners[UIfunctionName] = newFunction;
      } else {
        throw new Error('This UI function does not exist. Typo? You tried: ' + UIfunctionName + ' possible are: ' + (0, _stringify2['default'])((0, _keys2['default'])(this.body.eventListeners)));
      }
    }

    /**
     * Restore the overridden UI functions to their original state.
     *
     * @private
     */

  }, {
    key: '_unbindTemporaryUIs',
    value: function _unbindTemporaryUIs() {
      for (var functionName in this.temporaryUIFunctions) {
        if (this.temporaryUIFunctions.hasOwnProperty(functionName)) {
          this.body.eventListeners[functionName] = this.temporaryUIFunctions[functionName];
          delete this.temporaryUIFunctions[functionName];
        }
      }
      this.temporaryUIFunctions = {};
    }

    /**
     * Unbind the events created by _temporaryBindEvent
     * @private
     */

  }, {
    key: '_unbindTemporaryEvents',
    value: function _unbindTemporaryEvents() {
      for (var i = 0; i < this.temporaryEventFunctions.length; i++) {
        var eventName = this.temporaryEventFunctions[i].event;
        var boundFunction = this.temporaryEventFunctions[i].boundFunction;
        this.body.emitter.off(eventName, boundFunction);
      }
      this.temporaryEventFunctions = [];
    }

    /**
     * Bind an hammer instance to a DOM element.
     *
     * @param {Element} domElement
     * @param {function} boundFunction
     */

  }, {
    key: '_bindHammerToDiv',
    value: function _bindHammerToDiv(domElement, boundFunction) {
      var hammer = new Hammer(domElement, {});
      hammerUtil.onTouch(hammer, boundFunction);
      this.manipulationHammers.push(hammer);
    }

    /**
     * Neatly clean up temporary edges and nodes
     * @private
     */

  }, {
    key: '_cleanupTemporaryNodesAndEdges',
    value: function _cleanupTemporaryNodesAndEdges() {
      // _clean temporary edges
      for (var i = 0; i < this.temporaryIds.edges.length; i++) {
        this.body.edges[this.temporaryIds.edges[i]].disconnect();
        delete this.body.edges[this.temporaryIds.edges[i]];
        var indexTempEdge = this.body.edgeIndices.indexOf(this.temporaryIds.edges[i]);
        if (indexTempEdge !== -1) {
          this.body.edgeIndices.splice(indexTempEdge, 1);
        }
      }

      // _clean temporary nodes
      for (var _i = 0; _i < this.temporaryIds.nodes.length; _i++) {
        delete this.body.nodes[this.temporaryIds.nodes[_i]];
        var indexTempNode = this.body.nodeIndices.indexOf(this.temporaryIds.nodes[_i]);
        if (indexTempNode !== -1) {
          this.body.nodeIndices.splice(indexTempNode, 1);
        }
      }

      this.temporaryIds = { nodes: [], edges: [] };
    }

    // ------------------------------------------ EDIT EDGE FUNCTIONS -----------------------------------------//

    /**
     * the touch is used to get the position of the initial click
     * @param {Event}  event   The event
     * @private
     */

  }, {
    key: '_controlNodeTouch',
    value: function _controlNodeTouch(event) {
      this.selectionHandler.unselectAll();
      this.lastTouch = this.body.functions.getPointer(event.center);
      this.lastTouch.translation = util.extend({}, this.body.view.translation); // copy the object
    }

    /**
     * the drag start is used to mark one of the control nodes as selected.
     * @param {Event}  event   The event
     * @private
     */

  }, {
    key: '_controlNodeDragStart',
    value: function _controlNodeDragStart(event) {
      // eslint-disable-line no-unused-vars
      var pointer = this.lastTouch;
      var pointerObj = this.selectionHandler._pointerToPositionObject(pointer);
      var from = this.body.nodes[this.temporaryIds.nodes[0]];
      var to = this.body.nodes[this.temporaryIds.nodes[1]];
      var edge = this.body.edges[this.edgeBeingEditedId];
      this.selectedControlNode = undefined;

      var fromSelect = from.isOverlappingWith(pointerObj);
      var toSelect = to.isOverlappingWith(pointerObj);

      if (fromSelect === true) {
        this.selectedControlNode = from;
        edge.edgeType.from = from;
      } else if (toSelect === true) {
        this.selectedControlNode = to;
        edge.edgeType.to = to;
      }

      // we use the selection to find the node that is being dragged. We explicitly select it here.
      if (this.selectedControlNode !== undefined) {
        this.selectionHandler.selectObject(this.selectedControlNode);
      }

      this.body.emitter.emit('_redraw');
    }

    /**
     * dragging the control nodes or the canvas
     * @param {Event}  event   The event
     * @private
     */

  }, {
    key: '_controlNodeDrag',
    value: function _controlNodeDrag(event) {
      this.body.emitter.emit('disablePhysics');
      var pointer = this.body.functions.getPointer(event.center);
      var pos = this.canvas.DOMtoCanvas(pointer);
      if (this.selectedControlNode !== undefined) {
        this.selectedControlNode.x = pos.x;
        this.selectedControlNode.y = pos.y;
      } else {
        // if the drag was not started properly because the click started outside the network div, start it now.
        var diffX = pointer.x - this.lastTouch.x;
        var diffY = pointer.y - this.lastTouch.y;
        this.body.view.translation = { x: this.lastTouch.translation.x + diffX, y: this.lastTouch.translation.y + diffY };
      }
      this.body.emitter.emit('_redraw');
    }

    /**
     * connecting or restoring the control nodes.
     * @param {Event}  event   The event
     * @private
     */

  }, {
    key: '_controlNodeDragEnd',
    value: function _controlNodeDragEnd(event) {
      var pointer = this.body.functions.getPointer(event.center);
      var pointerObj = this.selectionHandler._pointerToPositionObject(pointer);
      var edge = this.body.edges[this.edgeBeingEditedId];
      // if the node that was dragged is not a control node, return
      if (this.selectedControlNode === undefined) {
        return;
      }

      // we use the selection to find the node that is being dragged. We explicitly DEselect the control node here.
      this.selectionHandler.unselectAll();
      var overlappingNodeIds = this.selectionHandler._getAllNodesOverlappingWith(pointerObj);
      var node = undefined;
      for (var i = overlappingNodeIds.length - 1; i >= 0; i--) {
        if (overlappingNodeIds[i] !== this.selectedControlNode.id) {
          node = this.body.nodes[overlappingNodeIds[i]];
          break;
        }
      }
      // perform the connection
      if (node !== undefined && this.selectedControlNode !== undefined) {
        if (node.isCluster === true) {
          alert(this.options.locales[this.options.locale]['createEdgeError'] || this.options.locales['en']['createEdgeError']);
        } else {
          var from = this.body.nodes[this.temporaryIds.nodes[0]];
          if (this.selectedControlNode.id === from.id) {
            this._performEditEdge(node.id, edge.to.id);
          } else {
            this._performEditEdge(edge.from.id, node.id);
          }
        }
      } else {
        edge.updateEdgeType();
        this.body.emitter.emit('restorePhysics');
      }

      this.body.emitter.emit('_redraw');
    }

    // ------------------------------------ END OF EDIT EDGE FUNCTIONS -----------------------------------------//


    // ------------------------------------------- ADD EDGE FUNCTIONS -----------------------------------------//
    /**
     * the function bound to the selection event. It checks if you want to connect a cluster and changes the description
     * to walk the user through the process.
     *
     * @param {Event} event
     * @private
     */

  }, {
    key: '_handleConnect',
    value: function _handleConnect(event) {
      // check to avoid double fireing of this function.
      if (new Date().valueOf() - this.touchTime > 100) {
        this.lastTouch = this.body.functions.getPointer(event.center);
        this.lastTouch.translation = util.extend({}, this.body.view.translation); // copy the object

        var pointer = this.lastTouch;
        var node = this.selectionHandler.getNodeAt(pointer);

        if (node !== undefined) {
          if (node.isCluster === true) {
            alert(this.options.locales[this.options.locale]['createEdgeError'] || this.options.locales['en']['createEdgeError']);
          } else {
            // create a node the temporary line can look at
            var targetNode = this._getNewTargetNode(node.x, node.y);
            this.body.nodes[targetNode.id] = targetNode;
            this.body.nodeIndices.push(targetNode.id);

            // create a temporary edge
            var connectionEdge = this.body.functions.createEdge({
              id: 'connectionEdge' + util.randomUUID(),
              from: node.id,
              to: targetNode.id,
              physics: false,
              smooth: {
                enabled: true,
                type: 'continuous',
                roundness: 0.5
              }
            });
            this.body.edges[connectionEdge.id] = connectionEdge;
            this.body.edgeIndices.push(connectionEdge.id);

            this.temporaryIds.nodes.push(targetNode.id);
            this.temporaryIds.edges.push(connectionEdge.id);
          }
        }
        this.touchTime = new Date().valueOf();
      }
    }

    /**
     *
     * @param {Event} event
     * @private
     */

  }, {
    key: '_dragControlNode',
    value: function _dragControlNode(event) {
      var pointer = this.body.functions.getPointer(event.center);
      if (this.temporaryIds.nodes[0] !== undefined) {
        var targetNode = this.body.nodes[this.temporaryIds.nodes[0]]; // there is only one temp node in the add edge mode.
        targetNode.x = this.canvas._XconvertDOMtoCanvas(pointer.x);
        targetNode.y = this.canvas._YconvertDOMtoCanvas(pointer.y);
        this.body.emitter.emit('_redraw');
      } else {
        var diffX = pointer.x - this.lastTouch.x;
        var diffY = pointer.y - this.lastTouch.y;
        this.body.view.translation = { x: this.lastTouch.translation.x + diffX, y: this.lastTouch.translation.y + diffY };
      }
    }

    /**
     * Connect the new edge to the target if one exists, otherwise remove temp line
     * @param {Event}  event   The event
     * @private
     */

  }, {
    key: '_finishConnect',
    value: function _finishConnect(event) {
      var pointer = this.body.functions.getPointer(event.center);
      var pointerObj = this.selectionHandler._pointerToPositionObject(pointer);

      // remember the edge id
      var connectFromId = undefined;
      if (this.temporaryIds.edges[0] !== undefined) {
        connectFromId = this.body.edges[this.temporaryIds.edges[0]].fromId;
      }

      // get the overlapping node but NOT the temporary node;
      var overlappingNodeIds = this.selectionHandler._getAllNodesOverlappingWith(pointerObj);
      var node = undefined;
      for (var i = overlappingNodeIds.length - 1; i >= 0; i--) {
        // if the node id is NOT a temporary node, accept the node.
        if (this.temporaryIds.nodes.indexOf(overlappingNodeIds[i]) === -1) {
          node = this.body.nodes[overlappingNodeIds[i]];
          break;
        }
      }

      // clean temporary nodes and edges.
      this._cleanupTemporaryNodesAndEdges();

      // perform the connection
      if (node !== undefined) {
        if (node.isCluster === true) {
          alert(this.options.locales[this.options.locale]['createEdgeError'] || this.options.locales['en']['createEdgeError']);
        } else {
          if (this.body.nodes[connectFromId] !== undefined && this.body.nodes[node.id] !== undefined) {
            this._performAddEdge(connectFromId, node.id);
          }
        }
      }

      // No need to do _generateclickevent('dragEnd') here, the regular dragEnd event fires.
      this.body.emitter.emit('_redraw');
    }

    /**
     *
     * @param {Event} event
     * @private
     */

  }, {
    key: '_dragStartEdge',
    value: function _dragStartEdge(event) {
      var pointer = this.lastTouch;
      this.selectionHandler._generateClickEvent('dragStart', event, pointer, undefined, true);
    }

    // --------------------------------------- END OF ADD EDGE FUNCTIONS -------------------------------------//


    // ------------------------------ Performing all the actual data manipulation ------------------------//

    /**
     * Adds a node on the specified location
     *
     * @param {Object} clickData
     * @private
     */

  }, {
    key: '_performAddNode',
    value: function _performAddNode(clickData) {
      var _this4 = this;

      var defaultData = {
        id: util.randomUUID(),
        x: clickData.pointer.canvas.x,
        y: clickData.pointer.canvas.y,
        label: 'new'
      };

      if (typeof this.options.addNode === 'function') {
        if (this.options.addNode.length === 2) {
          this.options.addNode(defaultData, function (finalizedData) {
            if (finalizedData !== null && finalizedData !== undefined && _this4.inMode === 'addNode') {
              // if for whatever reason the mode has changes (due to dataset change) disregard the callback
              _this4.body.data.nodes.getDataSet().add(finalizedData);
              _this4.showManipulatorToolbar();
            }
          });
        } else {
          this.showManipulatorToolbar();
          throw new Error('The function for add does not support two arguments (data,callback)');
        }
      } else {
        this.body.data.nodes.getDataSet().add(defaultData);
        this.showManipulatorToolbar();
      }
    }

    /**
     * connect two nodes with a new edge.
     *
     * @param {Node.id} sourceNodeId
     * @param {Node.id} targetNodeId
     * @private
     */

  }, {
    key: '_performAddEdge',
    value: function _performAddEdge(sourceNodeId, targetNodeId) {
      var _this5 = this;

      var defaultData = { from: sourceNodeId, to: targetNodeId };
      if (typeof this.options.addEdge === 'function') {
        if (this.options.addEdge.length === 2) {
          this.options.addEdge(defaultData, function (finalizedData) {
            if (finalizedData !== null && finalizedData !== undefined && _this5.inMode === 'addEdge') {
              // if for whatever reason the mode has changes (due to dataset change) disregard the callback
              _this5.body.data.edges.getDataSet().add(finalizedData);
              _this5.selectionHandler.unselectAll();
              _this5.showManipulatorToolbar();
            }
          });
        } else {
          throw new Error('The function for connect does not support two arguments (data,callback)');
        }
      } else {
        this.body.data.edges.getDataSet().add(defaultData);
        this.selectionHandler.unselectAll();
        this.showManipulatorToolbar();
      }
    }

    /**
     * connect two nodes with a new edge.
     *
     * @param {Node.id} sourceNodeId
     * @param {Node.id} targetNodeId
     * @private
     */

  }, {
    key: '_performEditEdge',
    value: function _performEditEdge(sourceNodeId, targetNodeId) {
      var _this6 = this;

      var defaultData = { id: this.edgeBeingEditedId, from: sourceNodeId, to: targetNodeId, label: this.body.data.edges._data[this.edgeBeingEditedId].label };
      var eeFunct = this.options.editEdge;
      if ((typeof eeFunct === 'undefined' ? 'undefined' : (0, _typeof3['default'])(eeFunct)) === 'object') {
        eeFunct = eeFunct.editWithoutDrag;
      }
      if (typeof eeFunct === 'function') {
        if (eeFunct.length === 2) {
          eeFunct(defaultData, function (finalizedData) {
            if (finalizedData === null || finalizedData === undefined || _this6.inMode !== 'editEdge') {
              // if for whatever reason the mode has changes (due to dataset change) disregard the callback) {
              _this6.body.edges[defaultData.id].updateEdgeType();
              _this6.body.emitter.emit('_redraw');
              _this6.showManipulatorToolbar();
            } else {
              _this6.body.data.edges.getDataSet().update(finalizedData);
              _this6.selectionHandler.unselectAll();
              _this6.showManipulatorToolbar();
            }
          });
        } else {
          throw new Error('The function for edit does not support two arguments (data, callback)');
        }
      } else {
        this.body.data.edges.getDataSet().update(defaultData);
        this.selectionHandler.unselectAll();
        this.showManipulatorToolbar();
      }
    }
  }]);
  return ManipulationSystem;
}();

exports['default'] = ManipulationSystem;

/***/ }),
/* 238 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _slicedToArray2 = __webpack_require__(30);

var _slicedToArray3 = _interopRequireDefault(_slicedToArray2);

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

var _FloydWarshall = __webpack_require__(239);

var _FloydWarshall2 = _interopRequireDefault(_FloydWarshall);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 * KamadaKawai positions the nodes initially based on
 *
 * "AN ALGORITHM FOR DRAWING GENERAL UNDIRECTED GRAPHS"
 * -- Tomihisa KAMADA and Satoru KAWAI in 1989
 *
 * Possible optimizations in the distance calculation can be implemented.
 */
var KamadaKawai = function () {
  /**
   * @param {Object} body
   * @param {number} edgeLength
   * @param {number} edgeStrength
   */
  function KamadaKawai(body, edgeLength, edgeStrength) {
    (0, _classCallCheck3["default"])(this, KamadaKawai);

    this.body = body;
    this.springLength = edgeLength;
    this.springConstant = edgeStrength;
    this.distanceSolver = new _FloydWarshall2["default"]();
  }

  /**
   * Not sure if needed but can be used to update the spring length and spring constant
   * @param {Object} options
   */


  (0, _createClass3["default"])(KamadaKawai, [{
    key: "setOptions",
    value: function setOptions(options) {
      if (options) {
        if (options.springLength) {
          this.springLength = options.springLength;
        }
        if (options.springConstant) {
          this.springConstant = options.springConstant;
        }
      }
    }

    /**
     * Position the system
     * @param {Array.<Node>} nodesArray
     * @param {Array.<vis.Edge>} edgesArray
     * @param {boolean} [ignoreClusters=false]
     */

  }, {
    key: "solve",
    value: function solve(nodesArray, edgesArray) {
      var ignoreClusters = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

      // get distance matrix
      var D_matrix = this.distanceSolver.getDistances(this.body, nodesArray, edgesArray); // distance matrix

      // get the L Matrix
      this._createL_matrix(D_matrix);

      // get the K Matrix
      this._createK_matrix(D_matrix);

      // initial E Matrix
      this._createE_matrix();

      // calculate positions
      var threshold = 0.01;
      var innerThreshold = 1;
      var iterations = 0;
      var maxIterations = Math.max(1000, Math.min(10 * this.body.nodeIndices.length, 6000));
      var maxInnerIterations = 5;

      var maxEnergy = 1e9;
      var highE_nodeId = 0,
          dE_dx = 0,
          dE_dy = 0,
          delta_m = 0,
          subIterations = 0;

      while (maxEnergy > threshold && iterations < maxIterations) {
        iterations += 1;

        var _getHighestEnergyNode2 = this._getHighestEnergyNode(ignoreClusters);

        var _getHighestEnergyNode3 = (0, _slicedToArray3["default"])(_getHighestEnergyNode2, 4);

        highE_nodeId = _getHighestEnergyNode3[0];
        maxEnergy = _getHighestEnergyNode3[1];
        dE_dx = _getHighestEnergyNode3[2];
        dE_dy = _getHighestEnergyNode3[3];

        delta_m = maxEnergy;
        subIterations = 0;
        while (delta_m > innerThreshold && subIterations < maxInnerIterations) {
          subIterations += 1;
          this._moveNode(highE_nodeId, dE_dx, dE_dy);

          var _getEnergy2 = this._getEnergy(highE_nodeId);

          var _getEnergy3 = (0, _slicedToArray3["default"])(_getEnergy2, 3);

          delta_m = _getEnergy3[0];
          dE_dx = _getEnergy3[1];
          dE_dy = _getEnergy3[2];
        }
      }
    }

    /**
     * get the node with the highest energy
     * @param {boolean} ignoreClusters
     * @returns {number[]}
     * @private
     */

  }, {
    key: "_getHighestEnergyNode",
    value: function _getHighestEnergyNode(ignoreClusters) {
      var nodesArray = this.body.nodeIndices;
      var nodes = this.body.nodes;
      var maxEnergy = 0;
      var maxEnergyNodeId = nodesArray[0];
      var dE_dx_max = 0,
          dE_dy_max = 0;

      for (var nodeIdx = 0; nodeIdx < nodesArray.length; nodeIdx++) {
        var m = nodesArray[nodeIdx];
        // by not evaluating nodes with predefined positions we should only move nodes that have no positions.
        if (nodes[m].predefinedPosition === false || nodes[m].isCluster === true && ignoreClusters === true || nodes[m].options.fixed.x === true || nodes[m].options.fixed.y === true) {
          var _getEnergy4 = this._getEnergy(m),
              _getEnergy5 = (0, _slicedToArray3["default"])(_getEnergy4, 3),
              delta_m = _getEnergy5[0],
              dE_dx = _getEnergy5[1],
              dE_dy = _getEnergy5[2];

          if (maxEnergy < delta_m) {
            maxEnergy = delta_m;
            maxEnergyNodeId = m;
            dE_dx_max = dE_dx;
            dE_dy_max = dE_dy;
          }
        }
      }

      return [maxEnergyNodeId, maxEnergy, dE_dx_max, dE_dy_max];
    }

    /**
     * calculate the energy of a single node
     * @param {Node.id} m
     * @returns {number[]}
     * @private
     */

  }, {
    key: "_getEnergy",
    value: function _getEnergy(m) {
      var _E_sums$m = (0, _slicedToArray3["default"])(this.E_sums[m], 2),
          dE_dx = _E_sums$m[0],
          dE_dy = _E_sums$m[1];

      var delta_m = Math.sqrt(Math.pow(dE_dx, 2) + Math.pow(dE_dy, 2));
      return [delta_m, dE_dx, dE_dy];
    }

    /**
     * move the node based on it's energy
     * the dx and dy are calculated from the linear system proposed by Kamada and Kawai
     * @param {number} m
     * @param {number} dE_dx
     * @param {number} dE_dy
     * @private
     */

  }, {
    key: "_moveNode",
    value: function _moveNode(m, dE_dx, dE_dy) {
      var nodesArray = this.body.nodeIndices;
      var nodes = this.body.nodes;
      var d2E_dx2 = 0;
      var d2E_dxdy = 0;
      var d2E_dy2 = 0;

      var x_m = nodes[m].x;
      var y_m = nodes[m].y;
      var km = this.K_matrix[m];
      var lm = this.L_matrix[m];

      for (var iIdx = 0; iIdx < nodesArray.length; iIdx++) {
        var i = nodesArray[iIdx];
        if (i !== m) {
          var x_i = nodes[i].x;
          var y_i = nodes[i].y;
          var kmat = km[i];
          var lmat = lm[i];
          var denominator = 1.0 / Math.pow(Math.pow(x_m - x_i, 2) + Math.pow(y_m - y_i, 2), 1.5);
          d2E_dx2 += kmat * (1 - lmat * Math.pow(y_m - y_i, 2) * denominator);
          d2E_dxdy += kmat * (lmat * (x_m - x_i) * (y_m - y_i) * denominator);
          d2E_dy2 += kmat * (1 - lmat * Math.pow(x_m - x_i, 2) * denominator);
        }
      }
      // make the variable names easier to make the solving of the linear system easier to read
      var A = d2E_dx2,
          B = d2E_dxdy,
          C = dE_dx,
          D = d2E_dy2,
          E = dE_dy;

      // solve the linear system for dx and dy
      var dy = (C / A + E / B) / (B / A - D / B);
      var dx = -(B * dy + C) / A;

      // move the node
      nodes[m].x += dx;
      nodes[m].y += dy;

      // Recalculate E_matrix (should be incremental)
      this._updateE_matrix(m);
    }

    /**
     * Create the L matrix: edge length times shortest path
     * @param {Object} D_matrix
     * @private
     */

  }, {
    key: "_createL_matrix",
    value: function _createL_matrix(D_matrix) {
      var nodesArray = this.body.nodeIndices;
      var edgeLength = this.springLength;

      this.L_matrix = [];
      for (var i = 0; i < nodesArray.length; i++) {
        this.L_matrix[nodesArray[i]] = {};
        for (var j = 0; j < nodesArray.length; j++) {
          this.L_matrix[nodesArray[i]][nodesArray[j]] = edgeLength * D_matrix[nodesArray[i]][nodesArray[j]];
        }
      }
    }

    /**
     * Create the K matrix: spring constants times shortest path
     * @param {Object} D_matrix
     * @private
     */

  }, {
    key: "_createK_matrix",
    value: function _createK_matrix(D_matrix) {
      var nodesArray = this.body.nodeIndices;
      var edgeStrength = this.springConstant;

      this.K_matrix = [];
      for (var i = 0; i < nodesArray.length; i++) {
        this.K_matrix[nodesArray[i]] = {};
        for (var j = 0; j < nodesArray.length; j++) {
          this.K_matrix[nodesArray[i]][nodesArray[j]] = edgeStrength * Math.pow(D_matrix[nodesArray[i]][nodesArray[j]], -2);
        }
      }
    }

    /**
     *  Create matrix with all energies between nodes
     *  @private
     */

  }, {
    key: "_createE_matrix",
    value: function _createE_matrix() {
      var nodesArray = this.body.nodeIndices;
      var nodes = this.body.nodes;
      this.E_matrix = {};
      this.E_sums = {};
      for (var mIdx = 0; mIdx < nodesArray.length; mIdx++) {
        this.E_matrix[nodesArray[mIdx]] = [];
      }
      for (var _mIdx = 0; _mIdx < nodesArray.length; _mIdx++) {
        var m = nodesArray[_mIdx];
        var x_m = nodes[m].x;
        var y_m = nodes[m].y;
        var dE_dx = 0;
        var dE_dy = 0;
        for (var iIdx = _mIdx; iIdx < nodesArray.length; iIdx++) {
          var i = nodesArray[iIdx];
          if (i !== m) {
            var x_i = nodes[i].x;
            var y_i = nodes[i].y;
            var denominator = 1.0 / Math.sqrt(Math.pow(x_m - x_i, 2) + Math.pow(y_m - y_i, 2));
            this.E_matrix[m][iIdx] = [this.K_matrix[m][i] * (x_m - x_i - this.L_matrix[m][i] * (x_m - x_i) * denominator), this.K_matrix[m][i] * (y_m - y_i - this.L_matrix[m][i] * (y_m - y_i) * denominator)];
            this.E_matrix[i][_mIdx] = this.E_matrix[m][iIdx];
            dE_dx += this.E_matrix[m][iIdx][0];
            dE_dy += this.E_matrix[m][iIdx][1];
          }
        }
        //Store sum
        this.E_sums[m] = [dE_dx, dE_dy];
      }
    }

    /**
     * Update method, just doing single column (rows are auto-updated) (update all sums)
     *
     * @param {number} m
     * @private
     */

  }, {
    key: "_updateE_matrix",
    value: function _updateE_matrix(m) {
      var nodesArray = this.body.nodeIndices;
      var nodes = this.body.nodes;
      var colm = this.E_matrix[m];
      var kcolm = this.K_matrix[m];
      var lcolm = this.L_matrix[m];
      var x_m = nodes[m].x;
      var y_m = nodes[m].y;
      var dE_dx = 0;
      var dE_dy = 0;
      for (var iIdx = 0; iIdx < nodesArray.length; iIdx++) {
        var i = nodesArray[iIdx];
        if (i !== m) {
          //Keep old energy value for sum modification below
          var cell = colm[iIdx];
          var oldDx = cell[0];
          var oldDy = cell[1];

          //Calc new energy:
          var x_i = nodes[i].x;
          var y_i = nodes[i].y;
          var denominator = 1.0 / Math.sqrt(Math.pow(x_m - x_i, 2) + Math.pow(y_m - y_i, 2));
          var dx = kcolm[i] * (x_m - x_i - lcolm[i] * (x_m - x_i) * denominator);
          var dy = kcolm[i] * (y_m - y_i - lcolm[i] * (y_m - y_i) * denominator);
          colm[iIdx] = [dx, dy];
          dE_dx += dx;
          dE_dy += dy;

          //add new energy to sum of each column
          var sum = this.E_sums[i];
          sum[0] += dx - oldDx;
          sum[1] += dy - oldDy;
        }
      }
      //Store sum at -1 index
      this.E_sums[m] = [dE_dx, dE_dy];
    }
  }]);
  return KamadaKawai;
}(); // distance finding algorithm


exports["default"] = KamadaKawai;

/***/ }),
/* 239 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});

var _classCallCheck2 = __webpack_require__(0);

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = __webpack_require__(1);

var _createClass3 = _interopRequireDefault(_createClass2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/**
 *  The Floyd–Warshall algorithm is an algorithm for finding shortest paths in
 *  a weighted graph with positive or negative edge weights (but with no negative
 *  cycles). - https://en.wikipedia.org/wiki/Floyd–Warshall_algorithm
 */
var FloydWarshall = function () {
  /**
   * @ignore
   */
  function FloydWarshall() {
    (0, _classCallCheck3["default"])(this, FloydWarshall);
  }

  /**
   *
   * @param {Object} body
   * @param {Array.<Node>} nodesArray
   * @param {Array.<Edge>} edgesArray
   * @returns {{}}
   */


  (0, _createClass3["default"])(FloydWarshall, [{
    key: "getDistances",
    value: function getDistances(body, nodesArray, edgesArray) {
      var D_matrix = {};
      var edges = body.edges;

      // prepare matrix with large numbers
      for (var i = 0; i < nodesArray.length; i++) {
        var node = nodesArray[i];
        var cell = {};
        D_matrix[node] = cell;
        for (var j = 0; j < nodesArray.length; j++) {
          cell[nodesArray[j]] = i == j ? 0 : 1e9;
        }
      }

      // put the weights for the edges in. This assumes unidirectionality.
      for (var _i = 0; _i < edgesArray.length; _i++) {
        var edge = edges[edgesArray[_i]];
        // edge has to be connected if it counts to the distances. If it is connected to inner clusters it will crash so we also check if it is in the D_matrix
        if (edge.connected === true && D_matrix[edge.fromId] !== undefined && D_matrix[edge.toId] !== undefined) {
          D_matrix[edge.fromId][edge.toId] = 1;
          D_matrix[edge.toId][edge.fromId] = 1;
        }
      }

      var nodeCount = nodesArray.length;

      // Adapted FloydWarshall based on unidirectionality to greatly reduce complexity.
      for (var k = 0; k < nodeCount; k++) {
        var knode = nodesArray[k];
        var kcolm = D_matrix[knode];
        for (var _i2 = 0; _i2 < nodeCount - 1; _i2++) {
          var inode = nodesArray[_i2];
          var icolm = D_matrix[inode];
          for (var _j = _i2 + 1; _j < nodeCount; _j++) {
            var jnode = nodesArray[_j];
            var jcolm = D_matrix[jnode];

            var val = Math.min(icolm[jnode], icolm[knode] + kcolm[jnode]);
            icolm[jnode] = val;
            jcolm[inode] = val;
          }
        }
      }

      return D_matrix;
    }
  }]);
  return FloydWarshall;
}();

exports["default"] = FloydWarshall;

/***/ })
/******/ ]);
});