import { TemplateRef, ComponentFactoryResolver } from '@angular/core';
import { OverlayContainerRef } from '@duoduo-oba/ng-devui/overlay-container';
import { DragDropService } from '../services/drag-drop.service';
export declare class DragPreviewDirective {
    private componentFactoryResolver;
    private overlayContainerRef;
    private dragDropService;
    dragPreviewTemplate: TemplateRef<any>;
    dragPreviewData: any;
    dragPreviewOptions: {
        skipBatchPreview: boolean;
    };
    previewRef: any;
    constructor(componentFactoryResolver: ComponentFactoryResolver, overlayContainerRef: OverlayContainerRef, dragDropService: DragDropService);
    createPreview(): any;
    updateData(): void;
    destroyPreview(): void;
    getPreviewElement(): any;
    private getDragSyncDOMElements;
}