source: trip-planner-front/node_modules/@angular/cdk/bundles/cdk-collections.umd.js@ eed0bf8

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1(function (global, factory) {
2 typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('rxjs'), require('@angular/core')) :
3 typeof define === 'function' && define.amd ? define('@angular/cdk/collections', ['exports', 'rxjs', '@angular/core'], factory) :
4 (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory((global.ng = global.ng || {}, global.ng.cdk = global.ng.cdk || {}, global.ng.cdk.collections = {}), global.rxjs, global.ng.core));
5}(this, (function (exports, rxjs, i0) { 'use strict';
6
7 function _interopNamespace(e) {
8 if (e && e.__esModule) return e;
9 var n = Object.create(null);
10 if (e) {
11 Object.keys(e).forEach(function (k) {
12 if (k !== 'default') {
13 var d = Object.getOwnPropertyDescriptor(e, k);
14 Object.defineProperty(n, k, d.get ? d : {
15 enumerable: true,
16 get: function () {
17 return e[k];
18 }
19 });
20 }
21 });
22 }
23 n['default'] = e;
24 return Object.freeze(n);
25 }
26
27 var i0__namespace = /*#__PURE__*/_interopNamespace(i0);
28
29 /*! *****************************************************************************
30 Copyright (c) Microsoft Corporation.
31
32 Permission to use, copy, modify, and/or distribute this software for any
33 purpose with or without fee is hereby granted.
34
35 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
36 REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
37 AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
38 INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
39 LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
40 OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
41 PERFORMANCE OF THIS SOFTWARE.
42 ***************************************************************************** */
43 /* global Reflect, Promise */
44 var extendStatics = function (d, b) {
45 extendStatics = Object.setPrototypeOf ||
46 ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
47 function (d, b) { for (var p in b)
48 if (Object.prototype.hasOwnProperty.call(b, p))
49 d[p] = b[p]; };
50 return extendStatics(d, b);
51 };
52 function __extends(d, b) {
53 if (typeof b !== "function" && b !== null)
54 throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
55 extendStatics(d, b);
56 function __() { this.constructor = d; }
57 d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
58 }
59 var __assign = function () {
60 __assign = Object.assign || function __assign(t) {
61 for (var s, i = 1, n = arguments.length; i < n; i++) {
62 s = arguments[i];
63 for (var p in s)
64 if (Object.prototype.hasOwnProperty.call(s, p))
65 t[p] = s[p];
66 }
67 return t;
68 };
69 return __assign.apply(this, arguments);
70 };
71 function __rest(s, e) {
72 var t = {};
73 for (var p in s)
74 if (Object.prototype.hasOwnProperty.call(s, p) && e.indexOf(p) < 0)
75 t[p] = s[p];
76 if (s != null && typeof Object.getOwnPropertySymbols === "function")
77 for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++) {
78 if (e.indexOf(p[i]) < 0 && Object.prototype.propertyIsEnumerable.call(s, p[i]))
79 t[p[i]] = s[p[i]];
80 }
81 return t;
82 }
83 function __decorate(decorators, target, key, desc) {
84 var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
85 if (typeof Reflect === "object" && typeof Reflect.decorate === "function")
86 r = Reflect.decorate(decorators, target, key, desc);
87 else
88 for (var i = decorators.length - 1; i >= 0; i--)
89 if (d = decorators[i])
90 r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
91 return c > 3 && r && Object.defineProperty(target, key, r), r;
92 }
93 function __param(paramIndex, decorator) {
94 return function (target, key) { decorator(target, key, paramIndex); };
95 }
96 function __metadata(metadataKey, metadataValue) {
97 if (typeof Reflect === "object" && typeof Reflect.metadata === "function")
98 return Reflect.metadata(metadataKey, metadataValue);
99 }
100 function __awaiter(thisArg, _arguments, P, generator) {
101 function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
102 return new (P || (P = Promise))(function (resolve, reject) {
103 function fulfilled(value) { try {
104 step(generator.next(value));
105 }
106 catch (e) {
107 reject(e);
108 } }
109 function rejected(value) { try {
110 step(generator["throw"](value));
111 }
112 catch (e) {
113 reject(e);
114 } }
115 function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
116 step((generator = generator.apply(thisArg, _arguments || [])).next());
117 });
118 }
119 function __generator(thisArg, body) {
120 var _ = { label: 0, sent: function () { if (t[0] & 1)
121 throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
122 return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function () { return this; }), g;
123 function verb(n) { return function (v) { return step([n, v]); }; }
124 function step(op) {
125 if (f)
126 throw new TypeError("Generator is already executing.");
127 while (_)
128 try {
129 if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done)
130 return t;
131 if (y = 0, t)
132 op = [op[0] & 2, t.value];
133 switch (op[0]) {
134 case 0:
135 case 1:
136 t = op;
137 break;
138 case 4:
139 _.label++;
140 return { value: op[1], done: false };
141 case 5:
142 _.label++;
143 y = op[1];
144 op = [0];
145 continue;
146 case 7:
147 op = _.ops.pop();
148 _.trys.pop();
149 continue;
150 default:
151 if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) {
152 _ = 0;
153 continue;
154 }
155 if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) {
156 _.label = op[1];
157 break;
158 }
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160 _.label = t[1];
161 t = op;
162 break;
163 }
164 if (t && _.label < t[2]) {
165 _.label = t[2];
166 _.ops.push(op);
167 break;
168 }
169 if (t[2])
170 _.ops.pop();
171 _.trys.pop();
172 continue;
173 }
174 op = body.call(thisArg, _);
175 }
176 catch (e) {
177 op = [6, e];
178 y = 0;
179 }
180 finally {
181 f = t = 0;
182 }
183 if (op[0] & 5)
184 throw op[1];
185 return { value: op[0] ? op[1] : void 0, done: true };
186 }
187 }
188 var __createBinding = Object.create ? (function (o, m, k, k2) {
189 if (k2 === undefined)
190 k2 = k;
191 Object.defineProperty(o, k2, { enumerable: true, get: function () { return m[k]; } });
192 }) : (function (o, m, k, k2) {
193 if (k2 === undefined)
194 k2 = k;
195 o[k2] = m[k];
196 });
197 function __exportStar(m, o) {
198 for (var p in m)
199 if (p !== "default" && !Object.prototype.hasOwnProperty.call(o, p))
200 __createBinding(o, m, p);
201 }
202 function __values(o) {
203 var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
204 if (m)
205 return m.call(o);
206 if (o && typeof o.length === "number")
207 return {
208 next: function () {
209 if (o && i >= o.length)
210 o = void 0;
211 return { value: o && o[i++], done: !o };
212 }
213 };
214 throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
215 }
216 function __read(o, n) {
217 var m = typeof Symbol === "function" && o[Symbol.iterator];
218 if (!m)
219 return o;
220 var i = m.call(o), r, ar = [], e;
221 try {
222 while ((n === void 0 || n-- > 0) && !(r = i.next()).done)
223 ar.push(r.value);
224 }
225 catch (error) {
226 e = { error: error };
227 }
228 finally {
229 try {
230 if (r && !r.done && (m = i["return"]))
231 m.call(i);
232 }
233 finally {
234 if (e)
235 throw e.error;
236 }
237 }
238 return ar;
239 }
240 /** @deprecated */
241 function __spread() {
242 for (var ar = [], i = 0; i < arguments.length; i++)
243 ar = ar.concat(__read(arguments[i]));
244 return ar;
245 }
246 /** @deprecated */
247 function __spreadArrays() {
248 for (var s = 0, i = 0, il = arguments.length; i < il; i++)
249 s += arguments[i].length;
250 for (var r = Array(s), k = 0, i = 0; i < il; i++)
251 for (var a = arguments[i], j = 0, jl = a.length; j < jl; j++, k++)
252 r[k] = a[j];
253 return r;
254 }
255 function __spreadArray(to, from, pack) {
256 if (pack || arguments.length === 2)
257 for (var i = 0, l = from.length, ar; i < l; i++) {
258 if (ar || !(i in from)) {
259 if (!ar)
260 ar = Array.prototype.slice.call(from, 0, i);
261 ar[i] = from[i];
262 }
263 }
264 return to.concat(ar || from);
265 }
266 function __await(v) {
267 return this instanceof __await ? (this.v = v, this) : new __await(v);
268 }
269 function __asyncGenerator(thisArg, _arguments, generator) {
270 if (!Symbol.asyncIterator)
271 throw new TypeError("Symbol.asyncIterator is not defined.");
272 var g = generator.apply(thisArg, _arguments || []), i, q = [];
273 return i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i;
274 function verb(n) { if (g[n])
275 i[n] = function (v) { return new Promise(function (a, b) { q.push([n, v, a, b]) > 1 || resume(n, v); }); }; }
276 function resume(n, v) { try {
277 step(g[n](v));
278 }
279 catch (e) {
280 settle(q[0][3], e);
281 } }
282 function step(r) { r.value instanceof __await ? Promise.resolve(r.value.v).then(fulfill, reject) : settle(q[0][2], r); }
283 function fulfill(value) { resume("next", value); }
284 function reject(value) { resume("throw", value); }
285 function settle(f, v) { if (f(v), q.shift(), q.length)
286 resume(q[0][0], q[0][1]); }
287 }
288 function __asyncDelegator(o) {
289 var i, p;
290 return i = {}, verb("next"), verb("throw", function (e) { throw e; }), verb("return"), i[Symbol.iterator] = function () { return this; }, i;
291 function verb(n, f) { i[n] = o[n] ? function (v) { return (p = !p) ? { value: __await(o[n](v)), done: n === "return" } : f ? f(v) : v; } : f; }
292 }
293 function __asyncValues(o) {
294 if (!Symbol.asyncIterator)
295 throw new TypeError("Symbol.asyncIterator is not defined.");
296 var m = o[Symbol.asyncIterator], i;
297 return m ? m.call(o) : (o = typeof __values === "function" ? __values(o) : o[Symbol.iterator](), i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i);
298 function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; }
299 function settle(resolve, reject, d, v) { Promise.resolve(v).then(function (v) { resolve({ value: v, done: d }); }, reject); }
300 }
301 function __makeTemplateObject(cooked, raw) {
302 if (Object.defineProperty) {
303 Object.defineProperty(cooked, "raw", { value: raw });
304 }
305 else {
306 cooked.raw = raw;
307 }
308 return cooked;
309 }
310 ;
311 var __setModuleDefault = Object.create ? (function (o, v) {
312 Object.defineProperty(o, "default", { enumerable: true, value: v });
313 }) : function (o, v) {
314 o["default"] = v;
315 };
316 function __importStar(mod) {
317 if (mod && mod.__esModule)
318 return mod;
319 var result = {};
320 if (mod != null)
321 for (var k in mod)
322 if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k))
323 __createBinding(result, mod, k);
324 __setModuleDefault(result, mod);
325 return result;
326 }
327 function __importDefault(mod) {
328 return (mod && mod.__esModule) ? mod : { default: mod };
329 }
330 function __classPrivateFieldGet(receiver, state, kind, f) {
331 if (kind === "a" && !f)
332 throw new TypeError("Private accessor was defined without a getter");
333 if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver))
334 throw new TypeError("Cannot read private member from an object whose class did not declare it");
335 return kind === "m" ? f : kind === "a" ? f.call(receiver) : f ? f.value : state.get(receiver);
336 }
337 function __classPrivateFieldSet(receiver, state, value, kind, f) {
338 if (kind === "m")
339 throw new TypeError("Private method is not writable");
340 if (kind === "a" && !f)
341 throw new TypeError("Private accessor was defined without a setter");
342 if (typeof state === "function" ? receiver !== state || !f : !state.has(receiver))
343 throw new TypeError("Cannot write private member to an object whose class did not declare it");
344 return (kind === "a" ? f.call(receiver, value) : f ? f.value = value : state.set(receiver, value)), value;
345 }
346
347 /**
348 * @license
349 * Copyright Google LLC All Rights Reserved.
350 *
351 * Use of this source code is governed by an MIT-style license that can be
352 * found in the LICENSE file at https://angular.io/license
353 */
354 var DataSource = /** @class */ (function () {
355 function DataSource() {
356 }
357 return DataSource;
358 }());
359 /** Checks whether an object is a data source. */
360 function isDataSource(value) {
361 // Check if the value is a DataSource by observing if it has a connect function. Cannot
362 // be checked as an `instanceof DataSource` since people could create their own sources
363 // that match the interface, but don't extend DataSource.
364 return value && typeof value.connect === 'function';
365 }
366
367 /** DataSource wrapper for a native array. */
368 var ArrayDataSource = /** @class */ (function (_super) {
369 __extends(ArrayDataSource, _super);
370 function ArrayDataSource(_data) {
371 var _this = _super.call(this) || this;
372 _this._data = _data;
373 return _this;
374 }
375 ArrayDataSource.prototype.connect = function () {
376 return rxjs.isObservable(this._data) ? this._data : rxjs.of(this._data);
377 };
378 ArrayDataSource.prototype.disconnect = function () { };
379 return ArrayDataSource;
380 }(DataSource));
381
382 /**
383 * @license
384 * Copyright Google LLC All Rights Reserved.
385 *
386 * Use of this source code is governed by an MIT-style license that can be
387 * found in the LICENSE file at https://angular.io/license
388 */
389 /**
390 * A repeater that destroys views when they are removed from a
391 * {@link ViewContainerRef}. When new items are inserted into the container,
392 * the repeater will always construct a new embedded view for each item.
393 *
394 * @template T The type for the embedded view's $implicit property.
395 * @template R The type for the item in each IterableDiffer change record.
396 * @template C The type for the context passed to each embedded view.
397 */
398 var _DisposeViewRepeaterStrategy = /** @class */ (function () {
399 function _DisposeViewRepeaterStrategy() {
400 }
401 _DisposeViewRepeaterStrategy.prototype.applyChanges = function (changes, viewContainerRef, itemContextFactory, itemValueResolver, itemViewChanged) {
402 changes.forEachOperation(function (record, adjustedPreviousIndex, currentIndex) {
403 var view;
404 var operation;
405 if (record.previousIndex == null) {
406 var insertContext = itemContextFactory(record, adjustedPreviousIndex, currentIndex);
407 view = viewContainerRef.createEmbeddedView(insertContext.templateRef, insertContext.context, insertContext.index);
408 operation = 1 /* INSERTED */;
409 }
410 else if (currentIndex == null) {
411 viewContainerRef.remove(adjustedPreviousIndex);
412 operation = 3 /* REMOVED */;
413 }
414 else {
415 view = viewContainerRef.get(adjustedPreviousIndex);
416 viewContainerRef.move(view, currentIndex);
417 operation = 2 /* MOVED */;
418 }
419 if (itemViewChanged) {
420 itemViewChanged({
421 context: view === null || view === void 0 ? void 0 : view.context,
422 operation: operation,
423 record: record,
424 });
425 }
426 });
427 };
428 _DisposeViewRepeaterStrategy.prototype.detach = function () {
429 };
430 return _DisposeViewRepeaterStrategy;
431 }());
432
433 /**
434 * @license
435 * Copyright Google LLC All Rights Reserved.
436 *
437 * Use of this source code is governed by an MIT-style license that can be
438 * found in the LICENSE file at https://angular.io/license
439 */
440 /**
441 * A repeater that caches views when they are removed from a
442 * {@link ViewContainerRef}. When new items are inserted into the container,
443 * the repeater will reuse one of the cached views instead of creating a new
444 * embedded view. Recycling cached views reduces the quantity of expensive DOM
445 * inserts.
446 *
447 * @template T The type for the embedded view's $implicit property.
448 * @template R The type for the item in each IterableDiffer change record.
449 * @template C The type for the context passed to each embedded view.
450 */
451 var _RecycleViewRepeaterStrategy = /** @class */ (function () {
452 function _RecycleViewRepeaterStrategy() {
453 /**
454 * The size of the cache used to store unused views.
455 * Setting the cache size to `0` will disable caching. Defaults to 20 views.
456 */
457 this.viewCacheSize = 20;
458 /**
459 * View cache that stores embedded view instances that have been previously stamped out,
460 * but don't are not currently rendered. The view repeater will reuse these views rather than
461 * creating brand new ones.
462 *
463 * TODO(michaeljamesparsons) Investigate whether using a linked list would improve performance.
464 */
465 this._viewCache = [];
466 }
467 /** Apply changes to the DOM. */
468 _RecycleViewRepeaterStrategy.prototype.applyChanges = function (changes, viewContainerRef, itemContextFactory, itemValueResolver, itemViewChanged) {
469 var _this = this;
470 // Rearrange the views to put them in the right location.
471 changes.forEachOperation(function (record, adjustedPreviousIndex, currentIndex) {
472 var view;
473 var operation;
474 if (record.previousIndex == null) { // Item added.
475 var viewArgsFactory = function () { return itemContextFactory(record, adjustedPreviousIndex, currentIndex); };
476 view = _this._insertView(viewArgsFactory, currentIndex, viewContainerRef, itemValueResolver(record));
477 operation = view ? 1 /* INSERTED */ : 0 /* REPLACED */;
478 }
479 else if (currentIndex == null) { // Item removed.
480 _this._detachAndCacheView(adjustedPreviousIndex, viewContainerRef);
481 operation = 3 /* REMOVED */;
482 }
483 else { // Item moved.
484 view = _this._moveView(adjustedPreviousIndex, currentIndex, viewContainerRef, itemValueResolver(record));
485 operation = 2 /* MOVED */;
486 }
487 if (itemViewChanged) {
488 itemViewChanged({
489 context: view === null || view === void 0 ? void 0 : view.context,
490 operation: operation,
491 record: record,
492 });
493 }
494 });
495 };
496 _RecycleViewRepeaterStrategy.prototype.detach = function () {
497 var e_1, _a;
498 try {
499 for (var _b = __values(this._viewCache), _c = _b.next(); !_c.done; _c = _b.next()) {
500 var view = _c.value;
501 view.destroy();
502 }
503 }
504 catch (e_1_1) { e_1 = { error: e_1_1 }; }
505 finally {
506 try {
507 if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
508 }
509 finally { if (e_1) throw e_1.error; }
510 }
511 this._viewCache = [];
512 };
513 /**
514 * Inserts a view for a new item, either from the cache or by creating a new
515 * one. Returns `undefined` if the item was inserted into a cached view.
516 */
517 _RecycleViewRepeaterStrategy.prototype._insertView = function (viewArgsFactory, currentIndex, viewContainerRef, value) {
518 var cachedView = this._insertViewFromCache(currentIndex, viewContainerRef);
519 if (cachedView) {
520 cachedView.context.$implicit = value;
521 return undefined;
522 }
523 var viewArgs = viewArgsFactory();
524 return viewContainerRef.createEmbeddedView(viewArgs.templateRef, viewArgs.context, viewArgs.index);
525 };
526 /** Detaches the view at the given index and inserts into the view cache. */
527 _RecycleViewRepeaterStrategy.prototype._detachAndCacheView = function (index, viewContainerRef) {
528 var detachedView = viewContainerRef.detach(index);
529 this._maybeCacheView(detachedView, viewContainerRef);
530 };
531 /** Moves view at the previous index to the current index. */
532 _RecycleViewRepeaterStrategy.prototype._moveView = function (adjustedPreviousIndex, currentIndex, viewContainerRef, value) {
533 var view = viewContainerRef.get(adjustedPreviousIndex);
534 viewContainerRef.move(view, currentIndex);
535 view.context.$implicit = value;
536 return view;
537 };
538 /**
539 * Cache the given detached view. If the cache is full, the view will be
540 * destroyed.
541 */
542 _RecycleViewRepeaterStrategy.prototype._maybeCacheView = function (view, viewContainerRef) {
543 if (this._viewCache.length < this.viewCacheSize) {
544 this._viewCache.push(view);
545 }
546 else {
547 var index = viewContainerRef.indexOf(view);
548 // The host component could remove views from the container outside of
549 // the view repeater. It's unlikely this will occur, but just in case,
550 // destroy the view on its own, otherwise destroy it through the
551 // container to ensure that all the references are removed.
552 if (index === -1) {
553 view.destroy();
554 }
555 else {
556 viewContainerRef.remove(index);
557 }
558 }
559 };
560 /** Inserts a recycled view from the cache at the given index. */
561 _RecycleViewRepeaterStrategy.prototype._insertViewFromCache = function (index, viewContainerRef) {
562 var cachedView = this._viewCache.pop();
563 if (cachedView) {
564 viewContainerRef.insert(cachedView, index);
565 }
566 return cachedView || null;
567 };
568 return _RecycleViewRepeaterStrategy;
569 }());
570
571 /**
572 * @license
573 * Copyright Google LLC All Rights Reserved.
574 *
575 * Use of this source code is governed by an MIT-style license that can be
576 * found in the LICENSE file at https://angular.io/license
577 */
578 /**
579 * Class to be used to power selecting one or more options from a list.
580 */
581 var SelectionModel = /** @class */ (function () {
582 function SelectionModel(_multiple, initiallySelectedValues, _emitChanges) {
583 var _this = this;
584 if (_multiple === void 0) { _multiple = false; }
585 if (_emitChanges === void 0) { _emitChanges = true; }
586 this._multiple = _multiple;
587 this._emitChanges = _emitChanges;
588 /** Currently-selected values. */
589 this._selection = new Set();
590 /** Keeps track of the deselected options that haven't been emitted by the change event. */
591 this._deselectedToEmit = [];
592 /** Keeps track of the selected options that haven't been emitted by the change event. */
593 this._selectedToEmit = [];
594 /** Event emitted when the value has changed. */
595 this.changed = new rxjs.Subject();
596 if (initiallySelectedValues && initiallySelectedValues.length) {
597 if (_multiple) {
598 initiallySelectedValues.forEach(function (value) { return _this._markSelected(value); });
599 }
600 else {
601 this._markSelected(initiallySelectedValues[0]);
602 }
603 // Clear the array in order to avoid firing the change event for preselected values.
604 this._selectedToEmit.length = 0;
605 }
606 }
607 Object.defineProperty(SelectionModel.prototype, "selected", {
608 /** Selected values. */
609 get: function () {
610 if (!this._selected) {
611 this._selected = Array.from(this._selection.values());
612 }
613 return this._selected;
614 },
615 enumerable: false,
616 configurable: true
617 });
618 /**
619 * Selects a value or an array of values.
620 */
621 SelectionModel.prototype.select = function () {
622 var _this = this;
623 var values = [];
624 for (var _i = 0; _i < arguments.length; _i++) {
625 values[_i] = arguments[_i];
626 }
627 this._verifyValueAssignment(values);
628 values.forEach(function (value) { return _this._markSelected(value); });
629 this._emitChangeEvent();
630 };
631 /**
632 * Deselects a value or an array of values.
633 */
634 SelectionModel.prototype.deselect = function () {
635 var _this = this;
636 var values = [];
637 for (var _i = 0; _i < arguments.length; _i++) {
638 values[_i] = arguments[_i];
639 }
640 this._verifyValueAssignment(values);
641 values.forEach(function (value) { return _this._unmarkSelected(value); });
642 this._emitChangeEvent();
643 };
644 /**
645 * Toggles a value between selected and deselected.
646 */
647 SelectionModel.prototype.toggle = function (value) {
648 this.isSelected(value) ? this.deselect(value) : this.select(value);
649 };
650 /**
651 * Clears all of the selected values.
652 */
653 SelectionModel.prototype.clear = function () {
654 this._unmarkAll();
655 this._emitChangeEvent();
656 };
657 /**
658 * Determines whether a value is selected.
659 */
660 SelectionModel.prototype.isSelected = function (value) {
661 return this._selection.has(value);
662 };
663 /**
664 * Determines whether the model does not have a value.
665 */
666 SelectionModel.prototype.isEmpty = function () {
667 return this._selection.size === 0;
668 };
669 /**
670 * Determines whether the model has a value.
671 */
672 SelectionModel.prototype.hasValue = function () {
673 return !this.isEmpty();
674 };
675 /**
676 * Sorts the selected values based on a predicate function.
677 */
678 SelectionModel.prototype.sort = function (predicate) {
679 if (this._multiple && this.selected) {
680 this._selected.sort(predicate);
681 }
682 };
683 /**
684 * Gets whether multiple values can be selected.
685 */
686 SelectionModel.prototype.isMultipleSelection = function () {
687 return this._multiple;
688 };
689 /** Emits a change event and clears the records of selected and deselected values. */
690 SelectionModel.prototype._emitChangeEvent = function () {
691 // Clear the selected values so they can be re-cached.
692 this._selected = null;
693 if (this._selectedToEmit.length || this._deselectedToEmit.length) {
694 this.changed.next({
695 source: this,
696 added: this._selectedToEmit,
697 removed: this._deselectedToEmit
698 });
699 this._deselectedToEmit = [];
700 this._selectedToEmit = [];
701 }
702 };
703 /** Selects a value. */
704 SelectionModel.prototype._markSelected = function (value) {
705 if (!this.isSelected(value)) {
706 if (!this._multiple) {
707 this._unmarkAll();
708 }
709 this._selection.add(value);
710 if (this._emitChanges) {
711 this._selectedToEmit.push(value);
712 }
713 }
714 };
715 /** Deselects a value. */
716 SelectionModel.prototype._unmarkSelected = function (value) {
717 if (this.isSelected(value)) {
718 this._selection.delete(value);
719 if (this._emitChanges) {
720 this._deselectedToEmit.push(value);
721 }
722 }
723 };
724 /** Clears out the selected values. */
725 SelectionModel.prototype._unmarkAll = function () {
726 var _this = this;
727 if (!this.isEmpty()) {
728 this._selection.forEach(function (value) { return _this._unmarkSelected(value); });
729 }
730 };
731 /**
732 * Verifies the value assignment and throws an error if the specified value array is
733 * including multiple values while the selection model is not supporting multiple values.
734 */
735 SelectionModel.prototype._verifyValueAssignment = function (values) {
736 if (values.length > 1 && !this._multiple && (typeof ngDevMode === 'undefined' || ngDevMode)) {
737 throw getMultipleValuesInSingleSelectionError();
738 }
739 };
740 return SelectionModel;
741 }());
742 /**
743 * Returns an error that reports that multiple values are passed into a selection model
744 * with a single value.
745 * @docs-private
746 */
747 function getMultipleValuesInSingleSelectionError() {
748 return Error('Cannot pass multiple values into SelectionModel with single-value mode.');
749 }
750
751 /**
752 * Class to coordinate unique selection based on name.
753 * Intended to be consumed as an Angular service.
754 * This service is needed because native radio change events are only fired on the item currently
755 * being selected, and we still need to uncheck the previous selection.
756 *
757 * This service does not *store* any IDs and names because they may change at any time, so it is
758 * less error-prone if they are simply passed through when the events occur.
759 */
760 var UniqueSelectionDispatcher = /** @class */ (function () {
761 function UniqueSelectionDispatcher() {
762 this._listeners = [];
763 }
764 /**
765 * Notify other items that selection for the given name has been set.
766 * @param id ID of the item.
767 * @param name Name of the item.
768 */
769 UniqueSelectionDispatcher.prototype.notify = function (id, name) {
770 var e_1, _a;
771 try {
772 for (var _b = __values(this._listeners), _c = _b.next(); !_c.done; _c = _b.next()) {
773 var listener = _c.value;
774 listener(id, name);
775 }
776 }
777 catch (e_1_1) { e_1 = { error: e_1_1 }; }
778 finally {
779 try {
780 if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
781 }
782 finally { if (e_1) throw e_1.error; }
783 }
784 };
785 /**
786 * Listen for future changes to item selection.
787 * @return Function used to deregister listener
788 */
789 UniqueSelectionDispatcher.prototype.listen = function (listener) {
790 var _this = this;
791 this._listeners.push(listener);
792 return function () {
793 _this._listeners = _this._listeners.filter(function (registered) {
794 return listener !== registered;
795 });
796 };
797 };
798 UniqueSelectionDispatcher.prototype.ngOnDestroy = function () {
799 this._listeners = [];
800 };
801 return UniqueSelectionDispatcher;
802 }());
803 UniqueSelectionDispatcher.ɵprov = i0__namespace.ɵɵdefineInjectable({ factory: function UniqueSelectionDispatcher_Factory() { return new UniqueSelectionDispatcher(); }, token: UniqueSelectionDispatcher, providedIn: "root" });
804 UniqueSelectionDispatcher.decorators = [
805 { type: i0.Injectable, args: [{ providedIn: 'root' },] }
806 ];
807
808 /**
809 * @license
810 * Copyright Google LLC All Rights Reserved.
811 *
812 * Use of this source code is governed by an MIT-style license that can be
813 * found in the LICENSE file at https://angular.io/license
814 */
815 /**
816 * Injection token for {@link _ViewRepeater}. This token is for use by Angular Material only.
817 * @docs-private
818 */
819 var _VIEW_REPEATER_STRATEGY = new i0.InjectionToken('_ViewRepeater');
820
821 /**
822 * @license
823 * Copyright Google LLC All Rights Reserved.
824 *
825 * Use of this source code is governed by an MIT-style license that can be
826 * found in the LICENSE file at https://angular.io/license
827 */
828
829 /**
830 * Generated bundle index. Do not edit.
831 */
832
833 exports.ArrayDataSource = ArrayDataSource;
834 exports.DataSource = DataSource;
835 exports.SelectionModel = SelectionModel;
836 exports.UniqueSelectionDispatcher = UniqueSelectionDispatcher;
837 exports._DisposeViewRepeaterStrategy = _DisposeViewRepeaterStrategy;
838 exports._RecycleViewRepeaterStrategy = _RecycleViewRepeaterStrategy;
839 exports._VIEW_REPEATER_STRATEGY = _VIEW_REPEATER_STRATEGY;
840 exports.getMultipleValuesInSingleSelectionError = getMultipleValuesInSingleSelectionError;
841 exports.isDataSource = isDataSource;
842
843 Object.defineProperty(exports, '__esModule', { value: true });
844
845})));
846//# sourceMappingURL=cdk-collections.umd.js.map
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