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"use strict"; |
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var wp; |
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(wp ||= {}).undoManager = (() => { |
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var __create = Object.create; |
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var __defProp = Object.defineProperty; |
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var __getOwnPropDesc = Object.getOwnPropertyDescriptor; |
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var __getOwnPropNames = Object.getOwnPropertyNames; |
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var __getProtoOf = Object.getPrototypeOf; |
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var __hasOwnProp = Object.prototype.hasOwnProperty; |
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var __commonJS = (cb, mod) => function __require() { |
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return mod || (0, cb[__getOwnPropNames(cb)[0]])((mod = { exports: {} }).exports, mod), mod.exports; |
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}; |
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var __export = (target, all) => { |
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for (var name in all) |
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__defProp(target, name, { get: all[name], enumerable: true }); |
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}; |
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var __copyProps = (to, from, except, desc) => { |
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if (from && typeof from === "object" || typeof from === "function") { |
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for (let key of __getOwnPropNames(from)) |
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if (!__hasOwnProp.call(to, key) && key !== except) |
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__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable }); |
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} |
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return to; |
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}; |
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var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps( |
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// If the importer is in node compatibility mode or this is not an ESM |
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// file that has been converted to a CommonJS file using a Babel- |
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// compatible transform (i.e. "__esModule" has not been set), then set |
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// "default" to the CommonJS "module.exports" for node compatibility. |
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isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target, |
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mod |
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)); |
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var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod); |
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|
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// package-external:@wordpress/is-shallow-equal |
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var require_is_shallow_equal = __commonJS({ |
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"package-external:@wordpress/is-shallow-equal"(exports, 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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// packages/undo-manager/build-module/index.mjs |
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var index_exports = {}; |
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__export(index_exports, { |
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createUndoManager: () => createUndoManager |
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}); |
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var import_is_shallow_equal = __toESM(require_is_shallow_equal(), 1); |
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function mergeHistoryChanges(changes1, changes2) { |
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const newChanges = { ...changes1 }; |
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Object.entries(changes2).forEach(([key, value]) => { |
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if (newChanges[key]) { |
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newChanges[key] = { ...newChanges[key], to: value.to }; |
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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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var addHistoryChangesIntoRecord = (record, changes) => { |
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const existingChangesIndex = record?.findIndex( |
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({ id: recordIdentifier }) => { |
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return typeof recordIdentifier === "string" ? recordIdentifier === changes.id : (0, import_is_shallow_equal.isShallowEqual)(recordIdentifier, changes.id); |
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} |
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); |
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const nextRecord = [...record]; |
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if (existingChangesIndex !== -1) { |
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nextRecord[existingChangesIndex] = { |
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id: changes.id, |
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changes: mergeHistoryChanges( |
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nextRecord[existingChangesIndex].changes, |
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changes.changes |
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) |
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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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function createUndoManager() { |
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let history = []; |
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let stagedRecord = []; |
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let offset = 0; |
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const dropPendingRedos = () => { |
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history = history.slice(0, offset || void 0); |
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offset = 0; |
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}; |
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const appendStagedRecordToLatestHistoryRecord = () => { |
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const index = history.length === 0 ? 0 : history.length - 1; |
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let latestRecord = 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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const isRecordEmpty = (record) => { |
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const filteredRecord = record.filter(({ changes }) => { |
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return Object.values(changes).some( |
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({ from, to }) => typeof from !== "function" && typeof to !== "function" && !(0, import_is_shallow_equal.isShallowEqual)(from, to) |
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); |
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}); |
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return !filteredRecord.length; |
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}; |
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return { |
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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( |
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stagedRecord, |
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changes |
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); |
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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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return __toCommonJS(index_exports); |
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})(); |
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//# sourceMappingURL=index.js.map |
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