/**
 * @license
 * Copyright Google Inc. 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 { Optional } 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 {
    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;
}
export declare function UNIQUE_SELECTION_DISPATCHER_PROVIDER_FACTORY(parentDispatcher: UniqueSelectionDispatcher): UniqueSelectionDispatcher;
export declare const UNIQUE_SELECTION_DISPATCHER_PROVIDER: {
    provide: typeof UniqueSelectionDispatcher;
    deps: Optional[][];
    useFactory: (parentDispatcher: UniqueSelectionDispatcher) => UniqueSelectionDispatcher;
};
