/**
 * This file is part of the NocoBase (R) project.
 * Copyright (c) 2020-2024 NocoBase Co., Ltd.
 * Authors: NocoBase Team.
 *
 * This project is dual-licensed under AGPL-3.0 and NocoBase Commercial License.
 * For more information, please refer to: https://www.nocobase.com/agreement.
 */
import { DndContextProps } from '@dnd-kit/core';
import type { Transform } from '@dnd-kit/utilities';
import React, { FC } from 'react';
import { FlowModel } from '../../models';
import { PersistOptions } from '../../types';
export * from './findModelUidPosition';
export * from './gridDragPlanner';
export declare const EMPTY_COLUMN_UID = "EMPTY_COLUMN";
export declare const TOOLBAR_DRAG_ACTIVITY_EVENT = "nb-toolbar-drag-activity";
type ToolbarDragAnchorPoint = {
    x: number;
    y: number;
};
export declare const resolveOverlayAnchorTransform: ({ activeId, active, transform, activeNodeRect, dragAnchorPoint, }: {
    activeId: string | null;
    active: {
        id: string | number;
    } | null | undefined;
    transform: Transform;
    activeNodeRect: {
        top: number;
        left: number;
    } | null;
    dragAnchorPoint: ToolbarDragAnchorPoint | null;
}) => Transform;
export declare const DragHandler: FC<{
    model: FlowModel;
    children?: React.ReactNode;
}>;
export declare const Droppable: FC<{
    model: FlowModel<any>;
    children: React.ReactNode;
}>;
export interface DndProviderProps extends DndContextProps, PersistOptions {
    /**
     * Whether to render the built-in `DragOverlay` (the "Dragging" pill that
     * follows the cursor). Defaults to `true` for backwards compatibility with
     * existing flow-engine drag interactions. Set to `false` when the
     * surrounding UI already gives clear visual feedback (e.g. a drag-sort
     * table that highlights the drop position) and the floating pill would be
     * redundant.
     */
    showDragOverlay?: boolean;
}
export declare const DndProvider: FC<DndProviderProps>;