import { ElementRef, EventEmitter, OnDestroy, OnInit } from '@angular/core';
import { DragDropService, DropEvent } from './drag-drop.service';
import * as i0 from "@angular/core";
export declare class DroppableDirective implements OnInit, OnDestroy {
    private readonly el;
    private readonly service;
    /** Set to false / 'false' to temporarily disable this drop zone. */
    set droppable(val: boolean | string);
    /** Emits when a draggable element is released over this zone. */
    itemDropped: EventEmitter<DropEvent<unknown>>;
    /** Emits when a drag enters the zone — use for visual feedback. */
    dragEnter: EventEmitter<void>;
    /** Emits when a drag leaves the zone — use to reset visual feedback. */
    dragLeave: EventEmitter<void>;
    private enabled;
    private readonly destroy$;
    constructor(el: ElementRef<HTMLElement>, service: DragDropService);
    ngOnInit(): void;
    ngOnDestroy(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<DroppableDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<DroppableDirective, "[droppable]", never, { "droppable": { "alias": "droppable"; "required": false; }; }, { "itemDropped": "itemDropped"; "dragEnter": "dragEnter"; "dragLeave": "dragLeave"; }, never, never, true, never>;
}