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112 lines
3.2 KiB
112 lines
3.2 KiB
import React from 'react';
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import Cascader from 'rc-cascader';
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import Input from '../input';
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import Icon from '../icon';
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import arrayTreeFilter from 'array-tree-filter';
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import classNames from 'classnames';
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class AntCascader extends React.Component {
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constructor(props) {
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super(props);
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this.state = {
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value: props.value || props.defaultValue || [],
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popupVisible: false,
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};
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[
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'handleChange',
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'handlePopupVisibleChange',
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'setValue',
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'getLabel',
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'clearSelection',
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].forEach((method) => this[method] = this[method].bind(this));
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}
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componentWillReceiveProps(nextProps) {
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if ('value' in nextProps) {
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this.setState({ value: nextProps.value || [] });
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}
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}
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handleChange(value, selectedOptions) {
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this.setValue(value, selectedOptions);
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}
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handlePopupVisibleChange(popupVisible) {
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this.setState({ popupVisible });
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this.props.onPopupVisibleChange(popupVisible);
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}
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setValue(value, selectedOptions = []) {
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if (!('value' in this.props)) {
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this.setState({ value });
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}
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this.props.onChange(value, selectedOptions);
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}
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getLabel() {
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const { options, displayRender } = this.props;
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const label = arrayTreeFilter(options, (o, level) => o.value === this.state.value[level])
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.map(o => o.label);
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return displayRender(label);
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}
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clearSelection(e) {
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e.preventDefault();
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e.stopPropagation();
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this.setValue([]);
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this.setState({ popupVisible: false });
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}
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render() {
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const { prefixCls, children, placeholder, size, disabled, className, allowClear } = this.props;
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const sizeCls = classNames({
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'ant-input-lg': size === 'large',
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'ant-input-sm': size === 'small',
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});
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const clearIcon = (allowClear && !disabled && this.state.value.length > 0) ?
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<Icon type="cross-circle"
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className={`${prefixCls}-picker-clear`}
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onClick={this.clearSelection} /> : null;
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const arrowCls = classNames({
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[`${prefixCls}-picker-arrow`]: true,
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[`${prefixCls}-picker-arrow-expand`]: this.state.popupVisible,
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});
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const pickerCls = classNames({
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[className]: !!className,
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[`${prefixCls}-picker`]: true,
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[`${prefixCls}-picker-disabled`]: disabled,
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});
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return (
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<Cascader {...this.props}
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value={this.state.value}
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popupVisible={this.state.popupVisible}
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onPopupVisibleChange={this.handlePopupVisibleChange}
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onChange={this.handleChange}>
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{children ||
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<span
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{...this.props}
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className={pickerCls}>
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<Input placeholder={placeholder}
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className={`${prefixCls}-input ant-input ${sizeCls}`}
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style={{ width: '100%' }}
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value={this.getLabel()}
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disabled={disabled}
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readOnly />
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{clearIcon}
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<Icon type="down" className={arrowCls} />
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</span>
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}
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</Cascader>
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);
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}
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}
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AntCascader.defaultProps = {
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prefixCls: 'ant-cascader',
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placeholder: '请选择',
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transitionName: 'slide-up',
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popupPlacement: 'bottomLeft',
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onChange() {},
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options: [],
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displayRender(label) {
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return label.join(' / ');
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},
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disabled: false,
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allowClear: true,
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onPopupVisibleChange() {},
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};
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export default AntCascader;
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