mirror of
https://github.com/ant-design/ant-design.git
synced 2024-12-24 07:28:28 +08:00
361 lines
11 KiB
TypeScript
361 lines
11 KiB
TypeScript
import React from 'react';
|
|
import RcCascader from 'rc-cascader';
|
|
import arrayTreeFilter from 'array-tree-filter';
|
|
import classNames from 'classnames';
|
|
import omit from 'omit.js';
|
|
import Input from '../input';
|
|
import Icon from '../icon';
|
|
|
|
export interface CascaderOptionType {
|
|
value: string;
|
|
label: string;
|
|
disabled?: boolean;
|
|
children?: Array<CascaderOptionType>;
|
|
}
|
|
|
|
export type CascaderExpandTrigger = 'click' | 'hover'
|
|
|
|
export interface ShowSearchType {
|
|
filter?: (inputValue: string, path: CascaderOptionType[]) => boolean;
|
|
render?: (inputValue: string, path: CascaderOptionType[], prefixCls: string) => React.ReactNode;
|
|
sort?: (a: CascaderOptionType[], b: CascaderOptionType[], inputValue: string) => number;
|
|
matchInputWidth?: boolean;
|
|
}
|
|
|
|
export interface CascaderProps {
|
|
/** 可选项数据源 */
|
|
options: CascaderOptionType[];
|
|
/** 默认的选中项 */
|
|
defaultValue?: CascaderOptionType[];
|
|
/** 指定选中项 */
|
|
value?: CascaderOptionType[];
|
|
/** 选择完成后的回调 */
|
|
onChange?: (value: string[], selectedOptions?: CascaderOptionType[]) => void;
|
|
/** 选择后展示的渲染函数 */
|
|
displayRender?: (label: string[], selectedOptions?: CascaderOptionType[]) => React.ReactNode;
|
|
/** 自定义样式 */
|
|
style?: React.CSSProperties;
|
|
/** 自定义类名 */
|
|
className?: string;
|
|
/** 自定义浮层类名 */
|
|
popupClassName?: string;
|
|
/** 浮层预设位置：`bottomLeft` `bottomRight` `topLeft` `topRight` */
|
|
popupPlacement?: string;
|
|
/** 输入框占位文本*/
|
|
placeholder?: string;
|
|
/** 输入框大小，可选 `large` `default` `small` */
|
|
size?: string;
|
|
/** 禁用*/
|
|
disabled?: boolean;
|
|
/** 是否支持清除*/
|
|
allowClear?: boolean;
|
|
showSearch?: boolean | ShowSearchType;
|
|
notFoundContent?: React.ReactNode;
|
|
loadData?: (selectedOptions?: CascaderOptionType[]) => void;
|
|
/** 次级菜单的展开方式，可选 'click' 和 'hover' */
|
|
expandTrigger?: CascaderExpandTrigger;
|
|
/** 当此项为 true 时，点选每级菜单选项值都会发生变化 */
|
|
changeOnSelect?: boolean;
|
|
/** 浮层可见变化时回调 */
|
|
onPopupVisibleChange?: (popupVisible: boolean) => void;
|
|
prefixCls?: string;
|
|
inputPrefixCls?: string;
|
|
getPopupContainer?: (triggerNode: Element) => HTMLElement;
|
|
}
|
|
|
|
function highlightKeyword(str: string, keyword: string, prefixCls: string) {
|
|
return str.split(keyword)
|
|
.map((node: string, index: number) => index === 0 ? node : [
|
|
<span className={`${prefixCls}-menu-item-keyword`} key="seperator">{keyword}</span>,
|
|
node,
|
|
]);
|
|
}
|
|
|
|
function defaultFilterOption(inputValue, path) {
|
|
return path.some(option => option.label.indexOf(inputValue) > -1);
|
|
}
|
|
|
|
function defaultRenderFilteredOption(inputValue, path, prefixCls) {
|
|
return path.map(({ label }, index) => {
|
|
const node = label.indexOf(inputValue) > -1 ? highlightKeyword(label, inputValue, prefixCls) : label;
|
|
return index === 0 ? node : [' / ', node];
|
|
});
|
|
}
|
|
|
|
function defaultSortFilteredOption(a, b, inputValue) {
|
|
function callback(elem) {
|
|
return elem.label.indexOf(inputValue) > -1;
|
|
}
|
|
|
|
return a.findIndex(callback) - b.findIndex(callback);
|
|
}
|
|
|
|
const defaultDisplayRender = label => label.join(' / ');
|
|
|
|
export default class Cascader extends React.Component<CascaderProps, any> {
|
|
static defaultProps = {
|
|
prefixCls: 'ant-cascader',
|
|
inputPrefixCls: 'ant-input',
|
|
placeholder: 'Please select',
|
|
transitionName: 'slide-up',
|
|
popupPlacement: 'bottomLeft',
|
|
options: [],
|
|
disabled: false,
|
|
allowClear: true,
|
|
notFoundContent: 'Not Found',
|
|
};
|
|
|
|
cachedOptions: CascaderOptionType[];
|
|
refs: {
|
|
[key: string]: any;
|
|
input: {
|
|
refs: { input: HTMLElement }
|
|
};
|
|
};
|
|
|
|
constructor(props) {
|
|
super(props);
|
|
this.state = {
|
|
value: props.value || props.defaultValue || [],
|
|
inputValue: '',
|
|
inputFocused: false,
|
|
popupVisible: false,
|
|
flattenOptions: props.showSearch && this.flattenTree(props.options, props.changeOnSelect),
|
|
};
|
|
}
|
|
|
|
componentWillReceiveProps(nextProps) {
|
|
if ('value' in nextProps) {
|
|
this.setState({ value: nextProps.value || [] });
|
|
}
|
|
if (nextProps.showSearch && this.props.options !== nextProps.options) {
|
|
this.setState({ flattenOptions: this.flattenTree(nextProps.options, nextProps.changeOnSelect) });
|
|
}
|
|
}
|
|
|
|
handleChange = (value, selectedOptions) => {
|
|
this.setState({ inputValue: '' });
|
|
if (selectedOptions[0].__IS_FILTERED_OPTION) {
|
|
const unwrappedValue = value[0];
|
|
const unwrappedSelectedOptions = selectedOptions[0].path;
|
|
this.setValue(unwrappedValue, unwrappedSelectedOptions);
|
|
return;
|
|
}
|
|
this.setValue(value, selectedOptions);
|
|
}
|
|
|
|
handlePopupVisibleChange = (popupVisible) => {
|
|
this.setState({
|
|
popupVisible,
|
|
inputFocused: popupVisible,
|
|
inputValue: popupVisible ? this.state.inputValue : '',
|
|
});
|
|
|
|
const onPopupVisibleChange = this.props.onPopupVisibleChange;
|
|
if (onPopupVisibleChange) {
|
|
onPopupVisibleChange(popupVisible);
|
|
}
|
|
}
|
|
|
|
handleInputBlur = () => {
|
|
this.setState({
|
|
inputFocused: false,
|
|
});
|
|
}
|
|
|
|
handleInputClick = (e) => {
|
|
const { inputFocused, popupVisible } = this.state;
|
|
// Prevent `Trigger` behaviour.
|
|
if (inputFocused || popupVisible) {
|
|
e.stopPropagation();
|
|
e.nativeEvent.stopImmediatePropagation();
|
|
}
|
|
}
|
|
|
|
handleInputChange = (e) => {
|
|
const inputValue = e.target.value;
|
|
this.setState({ inputValue });
|
|
}
|
|
|
|
setValue = (value, selectedOptions = []) => {
|
|
if (!('value' in this.props)) {
|
|
this.setState({ value });
|
|
}
|
|
const onChange = this.props.onChange;
|
|
if (onChange) {
|
|
onChange(value, selectedOptions);
|
|
}
|
|
}
|
|
|
|
getLabel() {
|
|
const { options, displayRender = defaultDisplayRender as Function } = this.props;
|
|
const value = this.state.value;
|
|
const unwrappedValue = Array.isArray(value[0]) ? value[0] : value;
|
|
const selectedOptions = arrayTreeFilter(options, (o, level) => o.value === unwrappedValue[level]);
|
|
const label = selectedOptions.map(o => o.label);
|
|
return displayRender(label, selectedOptions);
|
|
}
|
|
|
|
clearSelection = (e) => {
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
if (!this.state.inputValue) {
|
|
this.setValue([]);
|
|
this.setState({ popupVisible: false });
|
|
} else {
|
|
this.setState({ inputValue: '' });
|
|
}
|
|
}
|
|
|
|
flattenTree(options, changeOnSelect, ancestor = []) {
|
|
let flattenOptions: any = [];
|
|
options.forEach((option) => {
|
|
const path = ancestor.concat(option);
|
|
if (changeOnSelect || !option.children) {
|
|
flattenOptions.push(path);
|
|
}
|
|
if (option.children) {
|
|
flattenOptions = flattenOptions.concat(this.flattenTree(option.children, changeOnSelect, path));
|
|
}
|
|
});
|
|
return flattenOptions;
|
|
}
|
|
|
|
generateFilteredOptions(prefixCls) {
|
|
const { showSearch, notFoundContent } = this.props;
|
|
const {
|
|
filter = defaultFilterOption,
|
|
render = defaultRenderFilteredOption,
|
|
sort = defaultSortFilteredOption,
|
|
} = showSearch as ShowSearchType;
|
|
const { flattenOptions, inputValue } = this.state;
|
|
const filtered = flattenOptions.filter((path) => filter(this.state.inputValue, path))
|
|
.sort((a, b) => sort(a, b, inputValue));
|
|
|
|
if (filtered.length > 0) {
|
|
return filtered.map((path) => {
|
|
return {
|
|
__IS_FILTERED_OPTION: true,
|
|
path,
|
|
label: render(inputValue, path, prefixCls),
|
|
value: path.map(o => o.value),
|
|
disabled: path.some(o => o.disabled),
|
|
};
|
|
});
|
|
}
|
|
return [{ label: notFoundContent, value: 'ANT_CASCADER_NOT_FOUND', disabled: true }];
|
|
}
|
|
|
|
render() {
|
|
const { props, state } = this;
|
|
const {
|
|
prefixCls, inputPrefixCls, children, placeholder, size, disabled,
|
|
className, style, allowClear, showSearch = false, ...otherProps,
|
|
} = props;
|
|
const value = state.value;
|
|
|
|
const sizeCls = classNames({
|
|
[`${inputPrefixCls}-lg`]: size === 'large',
|
|
[`${inputPrefixCls}-sm`]: size === 'small',
|
|
});
|
|
const clearIcon = (allowClear && !disabled && value.length > 0) || state.inputValue ?
|
|
<Icon
|
|
type="cross-circle"
|
|
className={`${prefixCls}-picker-clear`}
|
|
onClick={this.clearSelection}
|
|
/> : null;
|
|
const arrowCls = classNames({
|
|
[`${prefixCls}-picker-arrow`]: true,
|
|
[`${prefixCls}-picker-arrow-expand`]: state.popupVisible,
|
|
});
|
|
const pickerCls = classNames(className, {
|
|
[`${prefixCls}-picker`]: true,
|
|
[`${prefixCls}-picker-with-value`]: state.inputValue,
|
|
[`${prefixCls}-picker-disabled`]: disabled,
|
|
});
|
|
|
|
// Fix bug of https://github.com/facebook/react/pull/5004
|
|
// and https://fb.me/react-unknown-prop
|
|
const inputProps = omit(otherProps, [
|
|
'onChange',
|
|
'options',
|
|
'popupPlacement',
|
|
'transitionName',
|
|
'displayRender',
|
|
'onPopupVisibleChange',
|
|
'changeOnSelect',
|
|
'expandTrigger',
|
|
'popupVisible',
|
|
'getPopupContainer',
|
|
'loadData',
|
|
'popupClassName',
|
|
'filterOption',
|
|
'renderFilteredOption',
|
|
'sortFilteredOption',
|
|
'notFoundContent',
|
|
]);
|
|
|
|
let options = props.options;
|
|
if (state.inputValue) {
|
|
options = this.generateFilteredOptions(prefixCls);
|
|
}
|
|
// Dropdown menu should keep previous status until it is fully closed.
|
|
if (!state.popupVisible) {
|
|
options = this.cachedOptions;
|
|
} else {
|
|
this.cachedOptions = options;
|
|
}
|
|
|
|
const dropdownMenuColumnStyle: { width?: number, height?: string } = {};
|
|
const isNotFound = (options || []).length === 1 && options[0].value === 'ANT_CASCADER_NOT_FOUND';
|
|
if (isNotFound) {
|
|
dropdownMenuColumnStyle.height = 'auto'; // Height of one row.
|
|
}
|
|
// The default value of `matchInputWidth` is `true`
|
|
const resultListMatchInputWidth = (showSearch as ShowSearchType).matchInputWidth === false ? false : true;
|
|
if (resultListMatchInputWidth && state.inputValue && this.refs.input) {
|
|
dropdownMenuColumnStyle.width = this.refs.input.refs.input.offsetWidth;
|
|
}
|
|
|
|
const input = children || (
|
|
<span
|
|
style={style}
|
|
className={pickerCls}
|
|
>
|
|
<Input
|
|
{...inputProps}
|
|
ref="input"
|
|
placeholder={value && value.length > 0 ? undefined : placeholder}
|
|
className={`${prefixCls}-input ${sizeCls}`}
|
|
value={state.inputValue}
|
|
disabled={disabled}
|
|
readOnly={!showSearch}
|
|
autoComplete="off"
|
|
onClick={showSearch ? this.handleInputClick : undefined}
|
|
onBlur={showSearch ? this.handleInputBlur : undefined}
|
|
onChange={showSearch ? this.handleInputChange : undefined}
|
|
/>
|
|
<span className={`${prefixCls}-picker-label`}>
|
|
{this.getLabel()}
|
|
</span>
|
|
{clearIcon}
|
|
<Icon type="down" className={arrowCls} />
|
|
</span>
|
|
);
|
|
|
|
return (
|
|
<RcCascader
|
|
{...props}
|
|
options={options}
|
|
value={value}
|
|
popupVisible={state.popupVisible}
|
|
onPopupVisibleChange={this.handlePopupVisibleChange}
|
|
onChange={this.handleChange}
|
|
dropdownMenuColumnStyle={dropdownMenuColumnStyle}
|
|
>
|
|
{input}
|
|
</RcCascader>
|
|
);
|
|
}
|
|
}
|