import { ɵDynamicWindowRefModel } from '../classes';
import { ɵWindowReferencesState } from '../states';
import * as i0 from "@angular/core";
/** @internal */
export declare class ɵDynamicWindowRefOrderingService {
    private readonly state;
    /** Array of window ids. The larger the index of id, the higher the window */
    private readonly windowOrderIds;
    constructor(state: ɵWindowReferencesState);
    getIndex(id: string): number;
    updateForAll(): void;
    remove(id: string): void;
    moveToTop(id: string): void;
    getHighestOpened(): ɵDynamicWindowRefModel | null;
    static ɵfac: i0.ɵɵFactoryDeclaration<ɵDynamicWindowRefOrderingService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ɵDynamicWindowRefOrderingService>;
}