263 lines
8.3 KiB
JavaScript
263 lines
8.3 KiB
JavaScript
/******/ (function() { // webpackBootstrap
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/******/ "use strict";
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/******/ var __webpack_modules__ = ({
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/***/ 9127:
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/***/ (function(module) {
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module.exports = window["wp"]["isShallowEqual"];
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/***/ })
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/******/ });
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/************************************************************************/
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/******/ // The module cache
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/******/ var __webpack_module_cache__ = {};
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/******/
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/******/ // The require function
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/******/ function __webpack_require__(moduleId) {
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/******/ // Check if module is in cache
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/******/ var cachedModule = __webpack_module_cache__[moduleId];
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/******/ if (cachedModule !== undefined) {
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/******/ return cachedModule.exports;
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/******/ }
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/******/ // Create a new module (and put it into the cache)
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/******/ var module = __webpack_module_cache__[moduleId] = {
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/******/ // no module.id needed
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/******/ // no module.loaded needed
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/******/ exports: {}
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/******/ };
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/******/
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/******/ // Execute the module function
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/******/ __webpack_modules__[moduleId](module, module.exports, __webpack_require__);
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/******/
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/******/ // Return the exports of the module
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/******/ return module.exports;
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/******/ }
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/******/
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/************************************************************************/
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/******/ /* webpack/runtime/compat get default export */
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/******/ !function() {
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/******/ // getDefaultExport function for compatibility with non-harmony modules
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/******/ __webpack_require__.n = function(module) {
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/******/ var getter = module && module.__esModule ?
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/******/ function() { return module['default']; } :
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/******/ function() { return module; };
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/******/ __webpack_require__.d(getter, { a: getter });
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/******/ return getter;
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/******/ };
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/******/ }();
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/******/
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/******/ /* webpack/runtime/define property getters */
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/******/ !function() {
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/******/ // define getter functions for harmony exports
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/******/ __webpack_require__.d = function(exports, definition) {
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/******/ for(var key in definition) {
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/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
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/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] });
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/******/ }
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/******/ }
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/******/ };
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/******/ }();
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/******/
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/******/ /* webpack/runtime/hasOwnProperty shorthand */
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/******/ !function() {
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/******/ __webpack_require__.o = function(obj, prop) { return Object.prototype.hasOwnProperty.call(obj, prop); }
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/******/ }();
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/******/
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/******/ /* webpack/runtime/make namespace object */
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/******/ !function() {
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/******/ // define __esModule on exports
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/******/ __webpack_require__.r = function(exports) {
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/******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
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/******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
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/******/ }
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/******/ Object.defineProperty(exports, '__esModule', { value: true });
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/******/ };
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/******/ }();
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/******/
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/************************************************************************/
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var __webpack_exports__ = {};
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// This entry need to be wrapped in an IIFE because it need to be isolated against other modules in the chunk.
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!function() {
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__webpack_require__.r(__webpack_exports__);
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/* harmony export */ __webpack_require__.d(__webpack_exports__, {
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/* harmony export */ createUndoManager: function() { return /* binding */ createUndoManager; }
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/* harmony export */ });
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/* harmony import */ var _wordpress_is_shallow_equal__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(9127);
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/* harmony import */ var _wordpress_is_shallow_equal__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_wordpress_is_shallow_equal__WEBPACK_IMPORTED_MODULE_0__);
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/**
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* WordPress dependencies
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*/
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/** @typedef {import('./types').HistoryRecord} HistoryRecord */
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/** @typedef {import('./types').HistoryChange} HistoryChange */
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/** @typedef {import('./types').HistoryChanges} HistoryChanges */
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/** @typedef {import('./types').UndoManager} UndoManager */
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/**
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* Merge changes for a single item into a record of changes.
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*
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* @param {Record< string, HistoryChange >} changes1 Previous changes
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* @param {Record< string, HistoryChange >} changes2 NextChanges
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*
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* @return {Record< string, HistoryChange >} Merged changes
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*/
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function mergeHistoryChanges(changes1, changes2) {
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/**
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* @type {Record< string, HistoryChange >}
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*/
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const newChanges = {
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...changes1
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};
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Object.entries(changes2).forEach(([key, value]) => {
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if (newChanges[key]) {
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newChanges[key] = {
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...newChanges[key],
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to: value.to
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};
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} else {
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newChanges[key] = value;
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}
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});
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return newChanges;
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}
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/**
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* Adds history changes for a single item into a record of changes.
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*
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* @param {HistoryRecord} record The record to merge into.
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* @param {HistoryChanges} changes The changes to merge.
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*/
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const addHistoryChangesIntoRecord = (record, changes) => {
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const existingChangesIndex = record?.findIndex(({
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id: recordIdentifier
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}) => {
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return typeof recordIdentifier === 'string' ? recordIdentifier === changes.id : _wordpress_is_shallow_equal__WEBPACK_IMPORTED_MODULE_0___default()(recordIdentifier, changes.id);
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});
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const nextRecord = [...record];
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if (existingChangesIndex !== -1) {
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// If the edit is already in the stack leave the initial "from" value.
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nextRecord[existingChangesIndex] = {
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id: changes.id,
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changes: mergeHistoryChanges(nextRecord[existingChangesIndex].changes, changes.changes)
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};
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} else {
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nextRecord.push(changes);
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}
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return nextRecord;
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};
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/**
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* Creates an undo manager.
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*
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* @return {UndoManager} Undo manager.
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*/
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function createUndoManager() {
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/**
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* @type {HistoryRecord[]}
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*/
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let history = [];
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/**
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* @type {HistoryRecord}
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*/
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let stagedRecord = [];
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/**
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* @type {number}
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*/
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let offset = 0;
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const dropPendingRedos = () => {
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history = history.slice(0, offset || undefined);
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offset = 0;
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};
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const appendStagedRecordToLatestHistoryRecord = () => {
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var _history$index;
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const index = history.length === 0 ? 0 : history.length - 1;
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let latestRecord = (_history$index = history[index]) !== null && _history$index !== void 0 ? _history$index : [];
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stagedRecord.forEach(changes => {
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latestRecord = addHistoryChangesIntoRecord(latestRecord, changes);
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});
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stagedRecord = [];
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history[index] = latestRecord;
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};
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/**
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* Checks whether a record is empty.
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* A record is considered empty if it the changes keep the same values.
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* Also updates to function values are ignored.
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*
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* @param {HistoryRecord} record
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* @return {boolean} Whether the record is empty.
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*/
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const isRecordEmpty = record => {
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const filteredRecord = record.filter(({
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changes
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}) => {
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return Object.values(changes).some(({
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from,
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to
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}) => typeof from !== 'function' && typeof to !== 'function' && !_wordpress_is_shallow_equal__WEBPACK_IMPORTED_MODULE_0___default()(from, to));
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});
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return !filteredRecord.length;
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};
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return {
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/**
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* Record changes into the history.
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*
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* @param {HistoryRecord=} record A record of changes to record.
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* @param {boolean} isStaged Whether to immediately create an undo point or not.
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*/
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addRecord(record, isStaged = false) {
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const isEmpty = !record || isRecordEmpty(record);
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if (isStaged) {
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if (isEmpty) {
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return;
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}
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record.forEach(changes => {
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stagedRecord = addHistoryChangesIntoRecord(stagedRecord, changes);
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});
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} else {
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dropPendingRedos();
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if (stagedRecord.length) {
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appendStagedRecordToLatestHistoryRecord();
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}
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if (isEmpty) {
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return;
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}
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history.push(record);
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}
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},
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undo() {
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if (stagedRecord.length) {
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dropPendingRedos();
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appendStagedRecordToLatestHistoryRecord();
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}
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const undoRecord = history[history.length - 1 + offset];
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if (!undoRecord) {
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return;
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}
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offset -= 1;
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return undoRecord;
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},
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redo() {
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const redoRecord = history[history.length + offset];
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if (!redoRecord) {
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return;
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}
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offset += 1;
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return redoRecord;
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},
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hasUndo() {
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return !!history[history.length - 1 + offset];
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},
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hasRedo() {
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return !!history[history.length + offset];
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}
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};
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}
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}();
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(window.wp = window.wp || {}).undoManager = __webpack_exports__;
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/******/ })()
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; |