/// <reference types="react" />
import { Disposable } from '@gedit/utils';
import { Rectangle } from '@gedit/math';
import { Tree, TreeNode } from './tree';
import { IDragEvent } from '@phosphor/dragdrop';
import { LabelProvider } from '@gedit/theme';
export declare const TREE_DROP_KEY = "data-tree-move-drop";
export declare enum TreeDropType {
    SIBLING = 0,
    CHILD = 1,
    NONE = 2
}
export declare const TreeDragdropOpts: unique symbol;
export interface TreeDragdropOpts<T extends TreeNode = TreeNode, TREE extends Tree = Tree> {
    /**
     * 拖拽结束是否要触发点击, 默认true
     */
    dragEndWithSelect?: boolean;
    canbeDrag?(clickNode: T, tree: TREE): boolean;
    canbeDrop?(dropNode: T, source: T[], tree: TREE, asChild: boolean): boolean;
    /**
     * 默认拖拽选中的节点, 不包含根节点
     * @param currentNode
     * @param tree
     */
    getDraggingNodes?(currentNode: T, tree: TREE): T[];
    dropSuccess(source: T[], dropNode: T, tree: TREE, asChild: boolean): void;
}
export declare const TreeDragdropDefault: TreeDragdropOpts<TreeNode, Tree>;
export declare class TreeDragdrop<T extends TreeNode = TreeNode, TREE extends Tree = Tree> implements Disposable {
    readonly tree: TREE;
    protected readonly labelProvider: LabelProvider;
    private droppingLine;
    private treeElement;
    private currentDropId;
    private handleContextmenu;
    private dropType;
    protected treeNodeElements: HTMLElement[];
    protected dragId: number;
    protected opts: Required<TreeDragdropOpts<T, TREE>>;
    constructor(tree: TREE, opts: TreeDragdropOpts<T, TREE>, labelProvider: LabelProvider);
    private _tryToExpandedNode;
    private _expandedTimeout;
    get isDropping(): boolean;
    private clearExpandedNode;
    tryToExpanded(dropNode: T, cb: () => void): boolean;
    dispose(): void;
    init(element: HTMLElement): void;
    getDropProps(dropTarget: HTMLElement, source: T[], event: IDragEvent): {
        node?: T;
        rect?: Rectangle;
        type: TreeDropType;
    };
    handleEvent(event: IDragEvent): void;
    protected isParent(parent: T, id: string): boolean;
    startDrag(node: T, e: React.MouseEvent): Promise<{
        dropId?: string;
        shouldTriggerClick: boolean;
    }>;
    protected findDropTarget(element: HTMLElement, e: MouseEvent): HTMLElement | 'root' | undefined;
}
//# sourceMappingURL=tree-dragdrop.d.ts.map