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-rw-r--r--wp-includes/js/dist/undo-manager.js263
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+/******/ (function() { // webpackBootstrap
+/******/ "use strict";
+/******/ var __webpack_modules__ = ({
+
+/***/ 9127:
+/***/ (function(module) {
+
+module.exports = window["wp"]["isShallowEqual"];
+
+/***/ })
+
+/******/ });
+/************************************************************************/
+/******/ // The module cache
+/******/ var __webpack_module_cache__ = {};
+/******/
+/******/ // The require function
+/******/ function __webpack_require__(moduleId) {
+/******/ // Check if module is in cache
+/******/ var cachedModule = __webpack_module_cache__[moduleId];
+/******/ if (cachedModule !== undefined) {
+/******/ return cachedModule.exports;
+/******/ }
+/******/ // Create a new module (and put it into the cache)
+/******/ var module = __webpack_module_cache__[moduleId] = {
+/******/ // no module.id needed
+/******/ // no module.loaded needed
+/******/ exports: {}
+/******/ };
+/******/
+/******/ // Execute the module function
+/******/ __webpack_modules__[moduleId](module, module.exports, __webpack_require__);
+/******/
+/******/ // Return the exports of the module
+/******/ return module.exports;
+/******/ }
+/******/
+/************************************************************************/
+/******/ /* webpack/runtime/compat get default export */
+/******/ !function() {
+/******/ // getDefaultExport function for compatibility with non-harmony modules
+/******/ __webpack_require__.n = function(module) {
+/******/ var getter = module && module.__esModule ?
+/******/ function() { return module['default']; } :
+/******/ function() { return module; };
+/******/ __webpack_require__.d(getter, { a: getter });
+/******/ return getter;
+/******/ };
+/******/ }();
+/******/
+/******/ /* webpack/runtime/define property getters */
+/******/ !function() {
+/******/ // define getter functions for harmony exports
+/******/ __webpack_require__.d = function(exports, definition) {
+/******/ for(var key in definition) {
+/******/ if(__webpack_require__.o(definition, key) && !__webpack_require__.o(exports, key)) {
+/******/ Object.defineProperty(exports, key, { enumerable: true, get: definition[key] });
+/******/ }
+/******/ }
+/******/ };
+/******/ }();
+/******/
+/******/ /* webpack/runtime/hasOwnProperty shorthand */
+/******/ !function() {
+/******/ __webpack_require__.o = function(obj, prop) { return Object.prototype.hasOwnProperty.call(obj, prop); }
+/******/ }();
+/******/
+/******/ /* webpack/runtime/make namespace object */
+/******/ !function() {
+/******/ // define __esModule on exports
+/******/ __webpack_require__.r = function(exports) {
+/******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
+/******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
+/******/ }
+/******/ Object.defineProperty(exports, '__esModule', { value: true });
+/******/ };
+/******/ }();
+/******/
+/************************************************************************/
+var __webpack_exports__ = {};
+// This entry need to be wrapped in an IIFE because it need to be isolated against other modules in the chunk.
+!function() {
+__webpack_require__.r(__webpack_exports__);
+/* harmony export */ __webpack_require__.d(__webpack_exports__, {
+/* harmony export */ createUndoManager: function() { return /* binding */ createUndoManager; }
+/* harmony export */ });
+/* harmony import */ var _wordpress_is_shallow_equal__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(9127);
+/* harmony import */ var _wordpress_is_shallow_equal__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_wordpress_is_shallow_equal__WEBPACK_IMPORTED_MODULE_0__);
+/**
+ * WordPress dependencies
+ */
+
+
+/** @typedef {import('./types').HistoryRecord} HistoryRecord */
+/** @typedef {import('./types').HistoryChange} HistoryChange */
+/** @typedef {import('./types').HistoryChanges} HistoryChanges */
+/** @typedef {import('./types').UndoManager} UndoManager */
+
+/**
+ * Merge changes for a single item into a record of changes.
+ *
+ * @param {Record< string, HistoryChange >} changes1 Previous changes
+ * @param {Record< string, HistoryChange >} changes2 NextChanges
+ *
+ * @return {Record< string, HistoryChange >} Merged changes
+ */
+function mergeHistoryChanges(changes1, changes2) {
+ /**
+ * @type {Record< string, HistoryChange >}
+ */
+ const newChanges = {
+ ...changes1
+ };
+ Object.entries(changes2).forEach(([key, value]) => {
+ if (newChanges[key]) {
+ newChanges[key] = {
+ ...newChanges[key],
+ to: value.to
+ };
+ } else {
+ newChanges[key] = value;
+ }
+ });
+ return newChanges;
+}
+
+/**
+ * Adds history changes for a single item into a record of changes.
+ *
+ * @param {HistoryRecord} record The record to merge into.
+ * @param {HistoryChanges} changes The changes to merge.
+ */
+const addHistoryChangesIntoRecord = (record, changes) => {
+ const existingChangesIndex = record?.findIndex(({
+ id: recordIdentifier
+ }) => {
+ return typeof recordIdentifier === 'string' ? recordIdentifier === changes.id : _wordpress_is_shallow_equal__WEBPACK_IMPORTED_MODULE_0___default()(recordIdentifier, changes.id);
+ });
+ const nextRecord = [...record];
+ if (existingChangesIndex !== -1) {
+ // If the edit is already in the stack leave the initial "from" value.
+ nextRecord[existingChangesIndex] = {
+ id: changes.id,
+ changes: mergeHistoryChanges(nextRecord[existingChangesIndex].changes, changes.changes)
+ };
+ } else {
+ nextRecord.push(changes);
+ }
+ return nextRecord;
+};
+
+/**
+ * Creates an undo manager.
+ *
+ * @return {UndoManager} Undo manager.
+ */
+function createUndoManager() {
+ /**
+ * @type {HistoryRecord[]}
+ */
+ let history = [];
+ /**
+ * @type {HistoryRecord}
+ */
+ let stagedRecord = [];
+ /**
+ * @type {number}
+ */
+ let offset = 0;
+ const dropPendingRedos = () => {
+ history = history.slice(0, offset || undefined);
+ offset = 0;
+ };
+ const appendStagedRecordToLatestHistoryRecord = () => {
+ var _history$index;
+ const index = history.length === 0 ? 0 : history.length - 1;
+ let latestRecord = (_history$index = history[index]) !== null && _history$index !== void 0 ? _history$index : [];
+ stagedRecord.forEach(changes => {
+ latestRecord = addHistoryChangesIntoRecord(latestRecord, changes);
+ });
+ stagedRecord = [];
+ history[index] = latestRecord;
+ };
+
+ /**
+ * Checks whether a record is empty.
+ * A record is considered empty if it the changes keep the same values.
+ * Also updates to function values are ignored.
+ *
+ * @param {HistoryRecord} record
+ * @return {boolean} Whether the record is empty.
+ */
+ const isRecordEmpty = record => {
+ const filteredRecord = record.filter(({
+ changes
+ }) => {
+ return Object.values(changes).some(({
+ from,
+ to
+ }) => typeof from !== 'function' && typeof to !== 'function' && !_wordpress_is_shallow_equal__WEBPACK_IMPORTED_MODULE_0___default()(from, to));
+ });
+ return !filteredRecord.length;
+ };
+ return {
+ /**
+ * Record changes into the history.
+ *
+ * @param {HistoryRecord=} record A record of changes to record.
+ * @param {boolean} isStaged Whether to immediately create an undo point or not.
+ */
+ addRecord(record, isStaged = false) {
+ const isEmpty = !record || isRecordEmpty(record);
+ if (isStaged) {
+ if (isEmpty) {
+ return;
+ }
+ record.forEach(changes => {
+ stagedRecord = addHistoryChangesIntoRecord(stagedRecord, changes);
+ });
+ } else {
+ dropPendingRedos();
+ if (stagedRecord.length) {
+ appendStagedRecordToLatestHistoryRecord();
+ }
+ if (isEmpty) {
+ return;
+ }
+ history.push(record);
+ }
+ },
+ undo() {
+ if (stagedRecord.length) {
+ dropPendingRedos();
+ appendStagedRecordToLatestHistoryRecord();
+ }
+ const undoRecord = history[history.length - 1 + offset];
+ if (!undoRecord) {
+ return;
+ }
+ offset -= 1;
+ return undoRecord;
+ },
+ redo() {
+ const redoRecord = history[history.length + offset];
+ if (!redoRecord) {
+ return;
+ }
+ offset += 1;
+ return redoRecord;
+ },
+ hasUndo() {
+ return !!history[history.length - 1 + offset];
+ },
+ hasRedo() {
+ return !!history[history.length + offset];
+ }
+ };
+}
+
+}();
+(window.wp = window.wp || {}).undoManager = __webpack_exports__;
+/******/ })()
+; \ No newline at end of file
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 06:31:55 +0000