import { ElementRef, OnDestroy } from '@angular/core';
import { SkyAppWindowRef, SkyScrollableHostService } from '@skyux/core';
import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
/**
 * @internal
 */
export declare class SkyBackToTopDomAdapterService implements OnDestroy {
    #private;
    constructor(windowRef: SkyAppWindowRef, scrollableHostService: SkyScrollableHostService);
    ngOnDestroy(): void;
    /**
     * This event returns a boolean on scroll indicating whether the provided element is in view.
     * @param elementRef The target element reference.
     */
    elementInViewOnScroll(elementRef: ElementRef): Observable<boolean>;
    /**
     * Scrolls the window or scrollable parent to the provided element.
     * @param elementRef The target element reference.
     */
    scrollToElement(elementRef: ElementRef): void;
    isElementScrolledInView(element: ElementRef): boolean;
    static ɵfac: i0.ɵɵFactoryDeclaration<SkyBackToTopDomAdapterService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<SkyBackToTopDomAdapterService>;
}