/// <reference types="react" />
import { PureComponent } from '../component';
import DatumTree from '../Datum/Tree';
import { TreeProps, UpdateFunc } from './Props';
import { KeygenResult } from '../@types/common';
interface TreeState {
    active: null | KeygenResult;
}
declare class Tree<DataItem, Value extends any[]> extends PureComponent<TreeProps<DataItem, Value>, TreeState> {
    handleDragImageSelector: () => string | undefined;
    handleClidrenClass: () => string | undefined;
    handleLeafClass: () => string | undefined;
    nodes: Map<KeygenResult, UpdateFunc>;
    datum: DatumTree<DataItem>;
    static defaultProps: any;
    constructor(props: TreeProps<DataItem, Value>);
    componentDidUpdate(prevProps: TreeProps<DataItem, Value>): void;
    getActive(): KeygenResult | null;
    bindDatum(): void;
    bindNode(id: KeygenResult, update: UpdateFunc): {
        active: boolean;
        expanded: boolean;
    };
    unbindNode(id: KeygenResult): void;
    handleExpanded(expanded?: KeygenResult[]): void;
    handleActive(active?: KeygenResult): void;
    handleNodeClick(node: DataItem, id: KeygenResult): void;
    handleToggle(id: KeygenResult): void;
    handleDrop(id: KeygenResult, targetId: KeygenResult, position: number): void;
    handleProps(key: 'dragImageSelector' | 'childrenClass' | 'leafClass'): string | ((data: DataItem) => string) | ((data: DataItem) => string) | ((data: DataItem) => string) | undefined;
    render(): JSX.Element;
}
export default Tree;