import { type Ref } from 'vue';
import type { FreeformItemData, DragState } from '../types/index.js';
interface ExternalDropOptions {
    dropZoneId?: string;
    dragState: Ref<DragState>;
    handleExternalDrop: (position: {
        x: number;
        y: number;
    } | null, items: FreeformItemData[]) => {
        dropIndex: number | null;
        containerId: string | null;
        containerAccepted: boolean;
    };
}
/**
 * Handles TARGET side of cross-list drag:
 * - Detects when external items are dragged over this Freeform
 * - Calculates drop position and container targets
 * - Updates registry so source can read drop info
 */
export declare function useExternalDrop(options: ExternalDropOptions): {
    isReceiving: import("vue").ComputedRef<boolean | "" | undefined>;
};
export {};