import { OnDestroy, OnInit } from '@angular/core';
import { Router } from '@angular/router';
import { BreadcrumbItem } from './breadcrumbs.model';
import { Subscription } from 'rxjs';
import { BreakpointObserver } from '@angular/cdk/layout';
import { ContextService } from '../../core/extension/context.service';
import { MatMenuTrigger } from '@angular/material/menu';
import { BreadcrumbService } from './breadcrumb.service';
import * as i0 from "@angular/core";
export declare class BreadcrumbsContribution implements OnInit, OnDestroy {
    private router;
    private breakpoint;
    private ctx;
    private breadcrumbService;
    items: Array<BreadcrumbItem>;
    tabletScreen: boolean;
    windowSizeTrackerSub: Subscription;
    trigger: MatMenuTrigger;
    private routerSub;
    private breadcrumbsSub;
    constructor(router: Router, breakpoint: BreakpointObserver, ctx: ContextService, breadcrumbService: BreadcrumbService);
    ngOnInit(): void;
    ngOnDestroy(): void;
    openMenu(): void;
    private parseRouteState;
    private buildItems;
    static ɵfac: i0.ɵɵFactoryDeclaration<BreadcrumbsContribution, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<BreadcrumbsContribution, "ng-component", never, {}, {}, never, never, false, never>;
}