import { Active, DragEndEvent, DragOverEvent, DroppableContainer } from '@dnd-kit/core';
/**
 * Because of the interplay between `getNextCoordinates` and `collisionDetection` when handling keyboard interactions,
 * we store the current position in a global variable.
 *
 * More specifically, the `collisionDetection` function doesn't have access to the same context as the `getNextCoordinates` function,
 * meaning that the collision detection function doesn't know which droppable container is currently being "hovered" by key presses.
 */
export declare const WINDOW_PROPERTY_SORT_POSITION = "react-hammer_DndSort_position";
/**
 * Resolves the zone (if any) where the item is being dropped.
 * Given that "over" can be a zone or an item, we have to dig into the event to determine the correct zone.
 * @param event - The drag event (either DragEndEvent or DragOverEvent)
 * @returns The resolved drop zone, which may be null if no valid zone is found
 */
export declare function resolveDropZone(event: DragEndEvent | DragOverEvent): import('@dnd-kit/core').Over | DroppableContainer | null;
/**
 * Calculates the validity of the drop event based on accepted types and custom validation.
 * @param params - An object containing the active drag item and the accepted types and validator function
 * @param params.active - The active drag item, which contains the current type and ID
 * @param params.acceptedTypes - An array of accepted types for the drop zone (optional)
 * @param params.validator - A custom validation function that takes the ID of the active item and returns a boolean
 * @returns boolean - true if valid, false otherwise
 */
export declare function calculateValidity({ active, acceptedTypes, validator, }: {
    active: Active | null;
    acceptedTypes?: string[];
    validator?: (id: string | number) => boolean;
}): boolean;
/**
 * Calculates the validity of the drop event based on accepted types and custom validation.
 * @param params - An object containing the active drag item and the drop zone information
 * @param params.active - The active drag item, which contains the current type and ID
 * @param params.zone - The drop zone information, which may include accepted types and a custom validator function
 * @returns boolean - true if valid, false otherwise
 */
export declare function calculateZoneValidity({ active, zone, }: {
    active: Active | null;
    zone: {
        id: string | number;
        data: {
            current?: {
                acceptedTypes?: string[];
                validator?: (id: string | number) => boolean;
            };
        };
    } | null;
}): boolean;
/**
 * Determines whether the drop event is valid based on the accepted types and custom validation function.
 * Internally resolves the drop zone.
 * @param event - The drag event (either DragEndEvent or DragOverEvent)
 * @returns boolean - true if valid, false otherwise
 */
export declare function calculateEventValidity(event: DragEndEvent | DragOverEvent): boolean;