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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 { OnDestroy } from '@angular/core';
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9 | export declare type UniqueSelectionDispatcherListener = (id: string, name: string) => void;
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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 declare class UniqueSelectionDispatcher implements OnDestroy {
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20 | private _listeners;
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21 | /**
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22 | * Notify other items that selection for the given name has been set.
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23 | * @param id ID of the item.
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24 | * @param name Name of the item.
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25 | */
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26 | notify(id: string, name: string): void;
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27 | /**
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28 | * Listen for future changes to item selection.
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29 | * @return Function used to deregister listener
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30 | */
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31 | listen(listener: UniqueSelectionDispatcherListener): () => void;
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32 | ngOnDestroy(): void;
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33 | }
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