UniqueInstanceStateController.js 4.8 KB

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  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", {
  3. value: true
  4. });
  5. exports.clearAllState = clearAllState;
  6. exports.commitServerChanges = commitServerChanges;
  7. exports.duplicateState = duplicateState;
  8. exports.enqueueTask = enqueueTask;
  9. exports.estimateAttribute = estimateAttribute;
  10. exports.estimateAttributes = estimateAttributes;
  11. exports.getObjectCache = getObjectCache;
  12. exports.getPendingOps = getPendingOps;
  13. exports.getServerData = getServerData;
  14. exports.getState = getState;
  15. exports.initializeState = initializeState;
  16. exports.mergeFirstPendingState = mergeFirstPendingState;
  17. exports.popPendingState = popPendingState;
  18. exports.pushPendingState = pushPendingState;
  19. exports.removeState = removeState;
  20. exports.setPendingOp = setPendingOp;
  21. exports.setServerData = setServerData;
  22. var ObjectStateMutations = _interopRequireWildcard(require("./ObjectStateMutations"));
  23. var _TaskQueue = _interopRequireDefault(require("./TaskQueue"));
  24. function _interopRequireDefault(e) {
  25. return e && e.__esModule ? e : {
  26. default: e
  27. };
  28. }
  29. function _getRequireWildcardCache(e) {
  30. if ("function" != typeof WeakMap) return null;
  31. var r = new WeakMap(),
  32. t = new WeakMap();
  33. return (_getRequireWildcardCache = function (e) {
  34. return e ? t : r;
  35. })(e);
  36. }
  37. function _interopRequireWildcard(e, r) {
  38. if (!r && e && e.__esModule) return e;
  39. if (null === e || "object" != typeof e && "function" != typeof e) return {
  40. default: e
  41. };
  42. var t = _getRequireWildcardCache(r);
  43. if (t && t.has(e)) return t.get(e);
  44. var n = {
  45. __proto__: null
  46. },
  47. a = Object.defineProperty && Object.getOwnPropertyDescriptor;
  48. for (var u in e) if ("default" !== u && {}.hasOwnProperty.call(e, u)) {
  49. var i = a ? Object.getOwnPropertyDescriptor(e, u) : null;
  50. i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u];
  51. }
  52. return n.default = e, t && t.set(e, n), n;
  53. }
  54. let objectState = new WeakMap();
  55. function getState(obj) {
  56. const classData = objectState.get(obj);
  57. return classData || null;
  58. }
  59. function initializeState(obj, initial) {
  60. let state = getState(obj);
  61. if (state) {
  62. return state;
  63. }
  64. if (!initial) {
  65. initial = {
  66. serverData: {},
  67. pendingOps: [{}],
  68. objectCache: {},
  69. tasks: new _TaskQueue.default(),
  70. existed: false
  71. };
  72. }
  73. state = initial;
  74. objectState.set(obj, state);
  75. return state;
  76. }
  77. function removeState(obj) {
  78. const state = getState(obj);
  79. if (state === null) {
  80. return null;
  81. }
  82. objectState.delete(obj);
  83. return state;
  84. }
  85. function getServerData(obj) {
  86. const state = getState(obj);
  87. if (state) {
  88. return state.serverData;
  89. }
  90. return {};
  91. }
  92. function setServerData(obj, attributes) {
  93. const serverData = initializeState(obj).serverData;
  94. ObjectStateMutations.setServerData(serverData, attributes);
  95. }
  96. function getPendingOps(obj) {
  97. const state = getState(obj);
  98. if (state) {
  99. return state.pendingOps;
  100. }
  101. return [{}];
  102. }
  103. function setPendingOp(obj, attr, op) {
  104. const pendingOps = initializeState(obj).pendingOps;
  105. ObjectStateMutations.setPendingOp(pendingOps, attr, op);
  106. }
  107. function pushPendingState(obj) {
  108. const pendingOps = initializeState(obj).pendingOps;
  109. ObjectStateMutations.pushPendingState(pendingOps);
  110. }
  111. function popPendingState(obj) {
  112. const pendingOps = initializeState(obj).pendingOps;
  113. return ObjectStateMutations.popPendingState(pendingOps);
  114. }
  115. function mergeFirstPendingState(obj) {
  116. const pendingOps = getPendingOps(obj);
  117. ObjectStateMutations.mergeFirstPendingState(pendingOps);
  118. }
  119. function getObjectCache(obj) {
  120. const state = getState(obj);
  121. if (state) {
  122. return state.objectCache;
  123. }
  124. return {};
  125. }
  126. function estimateAttribute(obj, attr) {
  127. const serverData = getServerData(obj);
  128. const pendingOps = getPendingOps(obj);
  129. return ObjectStateMutations.estimateAttribute(serverData, pendingOps, obj, attr);
  130. }
  131. function estimateAttributes(obj) {
  132. const serverData = getServerData(obj);
  133. const pendingOps = getPendingOps(obj);
  134. return ObjectStateMutations.estimateAttributes(serverData, pendingOps, obj);
  135. }
  136. function commitServerChanges(obj, changes) {
  137. const state = initializeState(obj);
  138. ObjectStateMutations.commitServerChanges(state.serverData, state.objectCache, changes);
  139. }
  140. function enqueueTask(obj, task) {
  141. const state = initializeState(obj);
  142. return state.tasks.enqueue(task);
  143. }
  144. function duplicateState(source, dest) {
  145. const oldState = initializeState(source);
  146. const newState = initializeState(dest);
  147. for (const key in oldState.serverData) {
  148. newState.serverData[key] = oldState.serverData[key];
  149. }
  150. for (let index = 0; index < oldState.pendingOps.length; index++) {
  151. for (const key in oldState.pendingOps[index]) {
  152. newState.pendingOps[index][key] = oldState.pendingOps[index][key];
  153. }
  154. }
  155. for (const key in oldState.objectCache) {
  156. newState.objectCache[key] = oldState.objectCache[key];
  157. }
  158. newState.existed = oldState.existed;
  159. }
  160. function clearAllState() {
  161. objectState = new WeakMap();
  162. }