import { AfterViewInit, ElementRef, EventEmitter, OnDestroy, OnInit, Renderer2 } from '@angular/core';
import * as i0 from "@angular/core";
declare enum Direction {
    Top = "top",
    Bottom = "bottom",
    Right = "right",
    Left = "left"
}
export type ShadowDir = {
    [key in Direction]: boolean;
};
export declare class ScrollDragDirective implements OnInit, AfterViewInit, OnDestroy {
    private elemRef;
    private renderer;
    scrollDirection: 'Horizontal' | 'Vertical';
    scrollShadow: boolean;
    shadowChange: EventEmitter<{
        direction: Direction;
        isShown: boolean;
    }>;
    backgroundColor: string;
    disableDrag: boolean;
    shadow: ShadowDir;
    private dateScrollChange$;
    private dateScrollChangeSubscription?;
    private inertia;
    private scrollDragSnap;
    private startDragY?;
    private startDragX?;
    private isPressed;
    private readonly element;
    constructor(elemRef: ElementRef, renderer: Renderer2);
    set ngxScrollDrag(value: number | string | undefined);
    ngAfterViewInit(): void;
    startDrag(ev: MouseEvent): void;
    drag(ev: MouseEvent): void;
    leave(ev: MouseEvent): void;
    stopDrag(ev: MouseEvent): void;
    onScroll(): void;
    ngOnInit(): void;
    scroll(scrollOffset: number): void;
    ngOnDestroy(): void;
    private setBoxShadowClass;
    private switchClass;
    private setBackgroundShadow;
    static ɵfac: i0.ɵɵFactoryDeclaration<ScrollDragDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<ScrollDragDirective, "[ngxScrollDrag]", never, { "scrollDirection": { "alias": "scrollDirection"; "required": false; }; "scrollShadow": { "alias": "scrollShadow"; "required": false; }; "backgroundColor": { "alias": "backgroundColor"; "required": false; }; "disableDrag": { "alias": "disableDrag"; "required": false; }; "ngxScrollDrag": { "alias": "ngxScrollDrag"; "required": false; }; }, { "shadowChange": "shadowChange"; }, never, never, false, never>;
}
export {};