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/**
* @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';
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;
}