import { EventEmitter, OnChanges, SimpleChanges, ChangeDetectorRef, OnDestroy } from '@angular/core';
export declare class DropZoneComponent implements OnChanges, OnDestroy {
    private cd;
    zone: Element;
    dropEvent: EventEmitter<{}>;
    dropping: boolean;
    counter: number;
    constructor(cd: ChangeDetectorRef);
    onDragEnter: (e: any) => void;
    preventDefaultAction: (e: any) => void;
    onDragLeave: () => void;
    emitDropEvent: (e: any) => void;
    clearListeners(): void;
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
}