import { AfterViewInit, ChangeDetectorRef, ElementRef, EventEmitter, OnChanges, OnDestroy, OnInit, SimpleChanges } from "@angular/core";
import { Mutable } from "data-modeling";
import { WithDragContext } from "../../models";
import { DgpDragAndDropService } from "../../data/services/drag-and-drop.service";
import { BehaviorSubject } from "rxjs";
import * as i0 from "@angular/core";
export declare class DgpDropzoneDirectiveBase<TModel> implements OnInit, OnChanges, AfterViewInit, OnDestroy, Mutable<WithDragContext> {
    private readonly elementRef;
    private readonly cd;
    private readonly dragAndDropService;
    protected readonly dragContext$: BehaviorSubject<string>;
    readonly isModelDragged$: import("rxjs").Observable<boolean>;
    private subscription;
    dragover: boolean;
    showDropIndicator: boolean;
    dragContext: string;
    readonly modelDropped: EventEmitter<TModel>;
    constructor(elementRef: ElementRef, cd: ChangeDetectorRef, dragAndDropService: DgpDragAndDropService);
    ngOnInit(): void;
    ngAfterViewInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    ngOnDestroy(): void;
    private readonly onDragOver;
    private readonly onDragEnter;
    private readonly onDragLeave;
    readonly drop: (e: DragEvent) => void;
    private parseDragEvent;
    private activateDragOverEffect;
    private deactivateDragOverEffect;
    private toggleDropIndicator;
    static ɵfac: i0.ɵɵFactoryDeclaration<DgpDropzoneDirectiveBase<any>, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<DgpDropzoneDirectiveBase<any>, never, never, { "dragContext": { "alias": "dragContext"; "required": false; }; }, { "modelDropped": "modelDropped"; }, never, never, true, never>;
}