import { AfterViewInit, ElementRef, EventEmitter, OnDestroy, OnChanges, SimpleChanges, NgZone } from '@angular/core';
import { DragDispatcher2 } from '../drag-dispatcher.service';
export declare type canDropFn = (itemOrNative: string | any) => boolean;
export declare class DropTarget implements AfterViewInit, OnChanges, OnDestroy {
    private readonly ngZone;
    private readonly elementRef;
    private readonly dragDispatcher;
    id: string;
    isOver: boolean;
    itemType: string | string[];
    canDrop: boolean | canDropFn;
    dropEffect: 'copy' | 'move' | 'link' | 'none';
    hovered: EventEmitter<any>;
    dropped: EventEmitter<any>;
    dragging: EventEmitter<boolean>;
    private subscription;
    private readonly destroyed;
    private readonly eventStream;
    readonly hostElement: any;
    constructor(ngZone: NgZone, elementRef: ElementRef, dragDispatcher: DragDispatcher2);
    ngAfterViewInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
}