/**
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://github.com/NG-ZORRO/ng-zorro-antd/blob/master/LICENSE
 */
import { AfterViewInit, ChangeDetectorRef, ElementRef, EventEmitter, OnDestroy, OnInit, TemplateRef } from '@angular/core';
import { Direction, Directionality } from '@angular/cdk/bidi';
import { Location } from '@angular/common';
import { NzConfigKey, NzConfigService } from 'ng-zorro-antd/core/config';
import { NzResizeObserver } from 'ng-zorro-antd/core/resize-observers';
import { Subject } from 'rxjs';
import { NzPageHeaderBreadcrumbDirective, NzPageHeaderFooterDirective } from './page-header-cells';
export declare class NzPageHeaderComponent implements AfterViewInit, OnDestroy, OnInit {
    private location;
    nzConfigService: NzConfigService;
    private elementRef;
    private nzResizeObserver;
    private cdr;
    private directionality;
    readonly _nzModuleName: NzConfigKey;
    nzBackIcon: string | TemplateRef<void> | null;
    nzTitle?: string | TemplateRef<void>;
    nzSubtitle?: string | TemplateRef<void>;
    nzGhost: boolean;
    readonly nzBack: EventEmitter<void>;
    nzPageHeaderFooter?: ElementRef<NzPageHeaderFooterDirective>;
    nzPageHeaderBreadcrumb?: ElementRef<NzPageHeaderBreadcrumbDirective>;
    compact: boolean;
    destroy$: Subject<void>;
    dir: Direction;
    constructor(location: Location, nzConfigService: NzConfigService, elementRef: ElementRef, nzResizeObserver: NzResizeObserver, cdr: ChangeDetectorRef, directionality: Directionality);
    ngOnInit(): void;
    ngAfterViewInit(): void;
    onBack(): void;
    ngOnDestroy(): void;
    getBackIcon(): string;
}