| 1 | /**
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| 2 | * @license
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| 3 | * Copyright Google LLC All Rights Reserved.
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| 4 | *
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| 5 | * Use of this source code is governed by an MIT-style license that can be
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| 6 | * found in the LICENSE file at https://angular.io/license
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| 7 | */
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| 8 | import { Injectable } from '@angular/core';
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| 9 | import * as i0 from "@angular/core";
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| 10 | /**
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| 11 | * Class to coordinate unique selection based on name.
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| 12 | * Intended to be consumed as an Angular service.
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| 13 | * This service is needed because native radio change events are only fired on the item currently
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| 14 | * being selected, and we still need to uncheck the previous selection.
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| 15 | *
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| 16 | * This service does not *store* any IDs and names because they may change at any time, so it is
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| 17 | * less error-prone if they are simply passed through when the events occur.
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| 18 | */
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| 19 | export class UniqueSelectionDispatcher {
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| 20 | constructor() {
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| 21 | this._listeners = [];
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| 22 | }
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| 23 | /**
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| 24 | * Notify other items that selection for the given name has been set.
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| 25 | * @param id ID of the item.
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| 26 | * @param name Name of the item.
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| 27 | */
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| 28 | notify(id, name) {
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| 29 | for (let listener of this._listeners) {
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| 30 | listener(id, name);
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| 31 | }
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| 32 | }
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| 33 | /**
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| 34 | * Listen for future changes to item selection.
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| 35 | * @return Function used to deregister listener
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| 36 | */
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| 37 | listen(listener) {
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| 38 | this._listeners.push(listener);
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| 39 | return () => {
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| 40 | this._listeners = this._listeners.filter((registered) => {
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| 41 | return listener !== registered;
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| 42 | });
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| 43 | };
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| 44 | }
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| 45 | ngOnDestroy() {
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| 46 | this._listeners = [];
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| 47 | }
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| 48 | }
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| 49 | UniqueSelectionDispatcher.ɵprov = i0.ɵɵdefineInjectable({ factory: function UniqueSelectionDispatcher_Factory() { return new UniqueSelectionDispatcher(); }, token: UniqueSelectionDispatcher, providedIn: "root" });
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| 50 | UniqueSelectionDispatcher.decorators = [
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| 51 | { type: Injectable, args: [{ providedIn: 'root' },] }
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| 52 | ];
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| 53 | //# sourceMappingURL=data:application/json;base64,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 |
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