import { OnDestroy, OnInit, TemplateRef, ViewContainerRef } from '@angular/core';
import { TemplateHolder, UiStateService } from '../services/ui-state.service';
import * as i0 from "@angular/core";
/**
 * Dynamically change page header content based on active template.
 *
 * Usage:
 * If you want to customize a page header, wrap a template with *aclPageHeaderContent.
 *
 * eg:
 * <ng-container *aclPageHeaderContent>
 *   ... YOUR TEMPLATE CONTENT
 * </ng-container>
 */
export declare class PageHeaderContentDirective implements OnInit, OnDestroy {
    private readonly templateRef;
    private readonly viewContainerRef;
    private readonly uiState;
    templateHolder: TemplateHolder;
    constructor(templateRef: TemplateRef<any>, viewContainerRef: ViewContainerRef, uiState: UiStateService);
    ngOnInit(): void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<PageHeaderContentDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<PageHeaderContentDirective, "[aclPageHeaderContent]", never, {}, {}, never, never, true, never>;
}