import { AfterContentInit, OnChanges, SimpleChanges } from '@angular/core';
import { ScrollableContainerWrapper } from './scrollable-container-wrapper';
import * as i0 from "@angular/core";
export declare abstract class ScrollBehavior implements AfterContentInit, OnChanges {
    scrollContainer: HTMLElement | null;
    protected _scrollableWrapper: ScrollableContainerWrapper | null;
    protected abstract _processBehavior: (scrollTop: number | null) => void;
    protected defaultTarget: EventTarget | any;
    protected _setScrollWrapper(): void;
    ngAfterContentInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<ScrollBehavior, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<ScrollBehavior, never, never, { "scrollContainer": { "alias": "scrollContainer"; "required": false; }; }, {}, never, never, false, never>;
}