@angular/cdk/collections/unique-selection-dispatcher.d.ts

Angular Material Component Development Kit

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import { OnDestroy } from '@angular/core';
import * as i0 from "@angular/core";
export declare type UniqueSelectionDispatcherListener = (id: string, name: string) => void;
/**
 * Class to coordinate unique selection based on name.
 * Intended to be consumed as an Angular service.
 * This service is needed because native radio change events are only fired on the item currently
 * being selected, and we still need to uncheck the previous selection.
 *
 * This service does not *store* any IDs and names because they may change at any time, so it is
 * less error-prone if they are simply passed through when the events occur.
 */
export declare class UniqueSelectionDispatcher implements OnDestroy {
    private _listeners;
    /**
     * Notify other items that selection for the given name has been set.
     * @param id ID of the item.
     * @param name Name of the item.
     */
    notify(id: string, name: string): void;
    /**
     * Listen for future changes to item selection.
     * @return Function used to deregister listener
     */
    listen(listener: UniqueSelectionDispatcherListener): () => void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<UniqueSelectionDispatcher, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<UniqueSelectionDispatcher>;
}