import { ElementRef, Injector, OnInit, Renderer2 } from '@angular/core';
import { ClrStandaloneCdkTrapFocus } from '../../utils/focus/focus-trap';
import { ResponsiveNavigationService } from './providers/responsive-navigation.service';
import { ResponsiveNavCodes } from './responsive-nav-codes';
import * as i0 from "@angular/core";
import * as i1 from "../../utils/focus/focus-trap/standalone-cdk-trap-focus.directive";
export declare class ClrNavLevel implements OnInit {
    private cdkTrapFocus;
    private responsiveNavService;
    private elementRef;
    private renderer;
    _level: number;
    closeButtonAriaLabel: string;
    private _isOpen;
    private _document;
    private _subscription;
    constructor(platformId: any, cdkTrapFocus: ClrStandaloneCdkTrapFocus, responsiveNavService: ResponsiveNavigationService, elementRef: ElementRef<HTMLElement>, renderer: Renderer2, injector: Injector);
    get level(): number;
    get responsiveNavCodes(): ResponsiveNavCodes;
    get isOpen(): boolean;
    ngOnInit(): void;
    ngAfterViewInit(): void;
    ngOnDestroy(): void;
    onResize(event: Event): void;
    onMouseClick(target: any): void;
    addNavClass(level: number): void;
    open(): void;
    close(): void;
    protected hideNavigation(): void;
    protected showNavigation(): void;
    protected hideCloseButton(): void;
    protected showCloseButton(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ClrNavLevel, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<ClrNavLevel, "[clr-nav-level]", never, { "_level": "clr-nav-level"; "closeButtonAriaLabel": "closeAriaLabel"; }, {}, never, never, false, [{ directive: typeof i1.ClrStandaloneCdkTrapFocus; inputs: {}; outputs: {}; }]>;
}