import { ElementRef, Renderer2, ViewContainerRef } from '@angular/core';
import { GridItemPlaceholderDirective } from './directives/placeholder.directive';
import { GridItemClientRect, GridItemRenderData } from './public-api';
import * as i0 from "@angular/core";
export declare class GridPlaceholderService {
    private readonly renderer;
    /** reference to the view of the placeholder element. */
    private placeholderRef;
    /** element that is rendered as placeholder when a grid item being dragged */
    placeholder: HTMLElement | null;
    constructor(renderer: Renderer2);
    updatePlaceHolder(data: GridItemRenderData): void;
    createPlaceholderElement(clientRect: GridItemClientRect, elementRef: ElementRef, viewContainerRef: ViewContainerRef, gridItemPlaceholder?: GridItemPlaceholderDirective): void;
    destroyPlaceholder(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<GridPlaceholderService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<GridPlaceholderService>;
}