ant-design/components/tree-select/index.jsx

import React from 'react';
import TreeSelect, { TreeNode } from 'rc-tree-select';
import classNames from 'classnames';

const AntTreeSelect = React.createClass({
  getDefaultProps() {
    return {
      prefixCls: 'ant-select',
      transitionName: 'slide-up',
      choiceTransitionName: 'zoom',
      showSearch: false,
    };
  },
  render() {
    const props = this.props;
    let {
      size, className, combobox, notFoundContent, prefixCls
    } = this.props;

    const cls = classNames({
      [`${prefixCls}-lg`]: size === 'large',
      [`${prefixCls}-sm`]: size === 'small',
      [className]: !!className,
    });

    if (combobox) {
      notFoundContent = null;
    }

    let checkable = props.treeCheckable;
    if (checkable) {
      checkable = <span className={`${prefixCls}-tree-checkbox-inner`}></span>;
    }

    return (
      <TreeSelect {...this.props}
        treeCheckable={checkable}
        className={cls}
        notFoundContent={notFoundContent} />
    );
  }
});

AntTreeSelect.TreeNode = TreeNode;
export default AntTreeSelect;