import { AfterViewInit, ElementRef, Renderer2 } from '@angular/core';
import { StacheWindowRef, StacheOmnibarAdapterService } from '../shared';
export declare class StacheAffixTopDirective implements AfterViewInit {
    private renderer;
    private elementRef;
    private omnibarService;
    private windowRef;
    static readonly AFFIX_CLASS_NAME: string;
    isAffixed: boolean;
    private footerWrapper;
    private omnibarHeight;
    private offsetTop;
    private element;
    constructor(renderer: Renderer2, elementRef: ElementRef, omnibarService: StacheOmnibarAdapterService, windowRef: StacheWindowRef);
    ngAfterViewInit(): void;
    onWindowScroll(): void;
    private isComponent(element);
    private getOffset(element);
    private affixToTop();
    private resetElement();
    private setMaxHeight();
    private footerIsVisible();
}