1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
|
/******/ (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__;
/******/ })()
;
|
