import { EventEmitter, Injector, OnDestroy, OnInit } from '@angular/core';
import { Subject } from 'rxjs';
import * as i0 from "@angular/core";
interface Option {
    bottomDistance?: number;
    topDistance?: number;
}
export declare class ScrollBorderObserverDirective implements OnInit, OnDestroy {
    option: Option | '' | false | number;
    scrollBorder: EventEmitter<"top" | "bottom">;
    scrollBottomBorder: EventEmitter<any>;
    scrollEl: HTMLElement | Window;
    readonly destroy$$: Subject<void>;
    private readonly scrollDispatcher;
    private readonly viewContainerRef;
    constructor(injector: Injector);
    ngOnInit(): void;
    ngOnDestroy(): void;
    private setupScroll;
    static ɵfac: i0.ɵɵFactoryDeclaration<ScrollBorderObserverDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<ScrollBorderObserverDirective, "[aclScrollBorderObserver]", never, { "option": { "alias": "aclScrollBorderObserver"; "required": false; }; }, { "scrollBorder": "scrollBorder"; "scrollBottomBorder": "scrollBottomBorder"; }, never, never, true, never>;
}
export {};