app/node_modules/mathjax-full/js/output/common/Wrappers/mo.js

"use strict";
var __extends = (this && this.__extends) || (function () {
    var extendStatics = function (d, b) {
        extendStatics = Object.setPrototypeOf ||
            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
        return extendStatics(d, b);
    };
    return function (d, b) {
        if (typeof b !== "function" && b !== null)
            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
        extendStatics(d, b);
        function __() { this.constructor = d; }
        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
    };
})();
var __assign = (this && this.__assign) || function () {
    __assign = Object.assign || function(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
                t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};
var __read = (this && this.__read) || function (o, n) {
    var m = typeof Symbol === "function" && o[Symbol.iterator];
    if (!m) return o;
    var i = m.call(o), r, ar = [], e;
    try {
        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
    }
    catch (error) { e = { error: error }; }
    finally {
        try {
            if (r && !r.done && (m = i["return"])) m.call(i);
        }
        finally { if (e) throw e.error; }
    }
    return ar;
};
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
    if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
        if (ar || !(i in from)) {
            if (!ar) ar = Array.prototype.slice.call(from, 0, i);
            ar[i] = from[i];
        }
    }
    return to.concat(ar || Array.prototype.slice.call(from));
};
var __values = (this && this.__values) || function(o) {
    var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
    if (m) return m.call(o);
    if (o && typeof o.length === "number") return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
    throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
exports.CommonMoMixin = exports.DirectionVH = void 0;
var BBox_js_1 = require("../../../util/BBox.js");
var string_js_1 = require("../../../util/string.js");
var FontData_js_1 = require("../FontData.js");
exports.DirectionVH = (_a = {},
    _a[1] = 'v',
    _a[2] = 'h',
    _a);
function CommonMoMixin(Base) {
    return (function (_super) {
        __extends(class_1, _super);
        function class_1() {
            var args = [];
            for (var _i = 0; _i < arguments.length; _i++) {
                args[_i] = arguments[_i];
            }
            var _this = _super.apply(this, __spreadArray([], __read(args), false)) || this;
            _this.size = null;
            _this.isAccent = _this.node.isAccent;
            return _this;
        }
        class_1.prototype.computeBBox = function (bbox, _recompute) {
            if (_recompute === void 0) { _recompute = false; }
            this.protoBBox(bbox);
            if (this.node.attributes.get('symmetric') &&
                this.stretch.dir !== 2) {
                var d = this.getCenterOffset(bbox);
                bbox.h += d;
                bbox.d -= d;
            }
            if (this.node.getProperty('mathaccent') &&
                (this.stretch.dir === 0 || this.size >= 0)) {
                bbox.w = 0;
            }
        };
        class_1.prototype.protoBBox = function (bbox) {
            var stretchy = (this.stretch.dir !== 0);
            if (stretchy && this.size === null) {
                this.getStretchedVariant([0]);
            }
            if (stretchy && this.size < 0)
                return;
            _super.prototype.computeBBox.call(this, bbox);
            this.copySkewIC(bbox);
        };
        class_1.prototype.getAccentOffset = function () {
            var bbox = BBox_js_1.BBox.empty();
            this.protoBBox(bbox);
            return -bbox.w / 2;
        };
        class_1.prototype.getCenterOffset = function (bbox) {
            if (bbox === void 0) { bbox = null; }
            if (!bbox) {
                bbox = BBox_js_1.BBox.empty();
                _super.prototype.computeBBox.call(this, bbox);
            }
            return ((bbox.h + bbox.d) / 2 + this.font.params.axis_height) - bbox.h;
        };
        class_1.prototype.getVariant = function () {
            if (this.node.attributes.get('largeop')) {
                this.variant = (this.node.attributes.get('displaystyle') ? '-largeop' : '-smallop');
                return;
            }
            if (!this.node.attributes.getExplicit('mathvariant') &&
                this.node.getProperty('pseudoscript') === false) {
                this.variant = '-tex-variant';
                return;
            }
            _super.prototype.getVariant.call(this);
        };
        class_1.prototype.canStretch = function (direction) {
            if (this.stretch.dir !== 0) {
                return this.stretch.dir === direction;
            }
            var attributes = this.node.attributes;
            if (!attributes.get('stretchy'))
                return false;
            var c = this.getText();
            if (Array.from(c).length !== 1)
                return false;
            var delim = this.font.getDelimiter(c.codePointAt(0));
            this.stretch = (delim && delim.dir === direction ? delim : FontData_js_1.NOSTRETCH);
            return this.stretch.dir !== 0;
        };
        class_1.prototype.getStretchedVariant = function (WH, exact) {
            var e_1, _a;
            if (exact === void 0) { exact = false; }
            if (this.stretch.dir !== 0) {
                var D = this.getWH(WH);
                var min = this.getSize('minsize', 0);
                var max = this.getSize('maxsize', Infinity);
                var mathaccent = this.node.getProperty('mathaccent');
                D = Math.max(min, Math.min(max, D));
                var df = this.font.params.delimiterfactor / 1000;
                var ds = this.font.params.delimitershortfall;
                var m = (min || exact ? D : mathaccent ? Math.min(D / df, D + ds) : Math.max(D * df, D - ds));
                var delim = this.stretch;
                var c = delim.c || this.getText().codePointAt(0);
                var i = 0;
                if (delim.sizes) {
                    try {
                        for (var _b = __values(delim.sizes), _c = _b.next(); !_c.done; _c = _b.next()) {
                            var d = _c.value;
                            if (d >= m) {
                                if (mathaccent && i) {
                                    i--;
                                }
                                this.variant = this.font.getSizeVariant(c, i);
                                this.size = i;
                                if (delim.schar && delim.schar[i]) {
                                    this.stretch = __assign(__assign({}, this.stretch), { c: delim.schar[i] });
                                }
                                return;
                            }
                            i++;
                        }
                    }
                    catch (e_1_1) { e_1 = { error: e_1_1 }; }
                    finally {
                        try {
                            if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
                        }
                        finally { if (e_1) throw e_1.error; }
                    }
                }
                if (delim.stretch) {
                    this.size = -1;
                    this.invalidateBBox();
                    this.getStretchBBox(WH, this.checkExtendedHeight(D, delim), delim);
                }
                else {
                    this.variant = this.font.getSizeVariant(c, i - 1);
                    this.size = i - 1;
                }
            }
        };
        class_1.prototype.getSize = function (name, value) {
            var attributes = this.node.attributes;
            if (attributes.isSet(name)) {
                value = this.length2em(attributes.get(name), 1, 1);
            }
            return value;
        };
        class_1.prototype.getWH = function (WH) {
            if (WH.length === 0)
                return 0;
            if (WH.length === 1)
                return WH[0];
            var _a = __read(WH, 2), H = _a[0], D = _a[1];
            var a = this.font.params.axis_height;
            return (this.node.attributes.get('symmetric') ? 2 * Math.max(H - a, D + a) : H + D);
        };
        class_1.prototype.getStretchBBox = function (WHD, D, C) {
            var _a;
            if (C.hasOwnProperty('min') && C.min > D) {
                D = C.min;
            }
            var _b = __read(C.HDW, 3), h = _b[0], d = _b[1], w = _b[2];
            if (this.stretch.dir === 1) {
                _a = __read(this.getBaseline(WHD, D, C), 2), h = _a[0], d = _a[1];
            }
            else {
                w = D;
            }
            this.bbox.h = h;
            this.bbox.d = d;
            this.bbox.w = w;
        };
        class_1.prototype.getBaseline = function (WHD, HD, C) {
            var hasWHD = (WHD.length === 2 && WHD[0] + WHD[1] === HD);
            var symmetric = this.node.attributes.get('symmetric');
            var _a = __read((hasWHD ? WHD : [HD, 0]), 2), H = _a[0], D = _a[1];
            var _b = __read([H + D, 0], 2), h = _b[0], d = _b[1];
            if (symmetric) {
                var a = this.font.params.axis_height;
                if (hasWHD) {
                    h = 2 * Math.max(H - a, D + a);
                }
                d = h / 2 - a;
            }
            else if (hasWHD) {
                d = D;
            }
            else {
                var _c = __read((C.HDW || [.75, .25]), 2), ch = _c[0], cd = _c[1];
                d = cd * (h / (ch + cd));
            }
            return [h - d, d];
        };
        class_1.prototype.checkExtendedHeight = function (D, C) {
            if (C.fullExt) {
                var _a = __read(C.fullExt, 2), extSize = _a[0], endSize = _a[1];
                var n = Math.ceil(Math.max(0, D - endSize) / extSize);
                D = endSize + n * extSize;
            }
            return D;
        };
        class_1.prototype.remapChars = function (chars) {
            var primes = this.node.getProperty('primes');
            if (primes) {
                return (0, string_js_1.unicodeChars)(primes);
            }
            if (chars.length === 1) {
                var parent_1 = this.node.coreParent().parent;
                var isAccent = this.isAccent && !parent_1.isKind('mrow');
                var map = (isAccent ? 'accent' : 'mo');
                var text = this.font.getRemappedChar(map, chars[0]);
                if (text) {
                    chars = this.unicodeChars(text, this.variant);
                }
            }
            return chars;
        };
        return class_1;
    }(Base));
}
exports.CommonMoMixin = CommonMoMixin;
//# sourceMappingURL=mo.js.map