import type { Option } from 'jamis-core';
import type { BaseSelectionProps } from '../types';
import { BaseSelection } from './Selection';
export interface TreeSelectionProps extends BaseSelectionProps {
    expand?: 'all' | 'first' | 'root' | 'none';
}
interface TreeSelectionState {
    expanded: Array<string>;
}
/**
 * 树形选择框组件
 */
export declare class TreeSelection extends BaseSelection<TreeSelectionProps, TreeSelectionState> {
    valueArray: Array<Option>;
    state: TreeSelectionState;
    static defaultProps: {
        expand: "first";
        placeholder: string;
        itemRender: (option: Option, states: import("../types").ItemRenderStates) => JSX.Element;
        multiple: boolean;
        clearable: boolean;
    };
    componentDidMount(): void;
    componentDidUpdate(prevProps: TreeSelectionProps): void;
    syncExpanded(): void;
    toggleOption(option: Option): void;
    toggleCollapsed(option: Option, index: string): void;
    renderItem(option: Option, index: number, indexes?: Array<number>, depth?: number): JSX.Element;
    render(): JSX.Element;
}
declare const _default: typeof TreeSelection;
export default _default;