mirror of
https://gitee.com/ant-design-vue/ant-design-vue.git
synced 2024-12-03 20:47:56 +08:00
527 lines
16 KiB
Vue
527 lines
16 KiB
Vue
import PropTypes from '../_util/vue-types';
|
||
import VcCascader from '../vc-cascader';
|
||
import arrayTreeFilter from 'array-tree-filter';
|
||
import classNames from 'classnames';
|
||
import omit from 'omit.js';
|
||
import KeyCode from '../_util/KeyCode';
|
||
import Input from '../input';
|
||
import Icon from '../icon';
|
||
import {
|
||
hasProp,
|
||
filterEmpty,
|
||
getOptionProps,
|
||
getStyle,
|
||
getClass,
|
||
getAttrs,
|
||
getComponentFromProp,
|
||
isValidElement,
|
||
} from '../_util/props-util';
|
||
import BaseMixin from '../_util/BaseMixin';
|
||
import { cloneElement } from '../_util/vnode';
|
||
import warning from '../_util/warning';
|
||
|
||
const CascaderOptionType = PropTypes.shape({
|
||
value: PropTypes.string,
|
||
label: PropTypes.any,
|
||
disabled: PropTypes.bool,
|
||
children: PropTypes.array,
|
||
key: PropTypes.string,
|
||
}).loose;
|
||
|
||
const FieldNamesType = PropTypes.shape({
|
||
value: PropTypes.string.isRequired,
|
||
label: PropTypes.string.isRequired,
|
||
children: PropTypes.string,
|
||
}).loose;
|
||
|
||
const CascaderExpandTrigger = PropTypes.oneOf(['click', 'hover']);
|
||
|
||
const ShowSearchType = PropTypes.shape({
|
||
filter: PropTypes.func,
|
||
render: PropTypes.func,
|
||
sort: PropTypes.func,
|
||
matchInputWidth: PropTypes.bool,
|
||
limit: PropTypes.oneOfType([Boolean, Number]),
|
||
}).loose;
|
||
function noop() {}
|
||
|
||
const CascaderProps = {
|
||
/** 可选项数据源 */
|
||
options: PropTypes.arrayOf(CascaderOptionType).def([]),
|
||
/** 默认的选中项 */
|
||
defaultValue: PropTypes.arrayOf(PropTypes.string),
|
||
/** 指定选中项 */
|
||
value: PropTypes.arrayOf(PropTypes.string),
|
||
/** 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: PropTypes.func,
|
||
transitionName: PropTypes.string.def('slide-up'),
|
||
popupStyle: PropTypes.object.def({}),
|
||
/** 自定义浮层类名 */
|
||
popupClassName: PropTypes.string,
|
||
/** 浮层预设位置：`bottomLeft` `bottomRight` `topLeft` `topRight` */
|
||
popupPlacement: PropTypes.oneOf(['bottomLeft', 'bottomRight', 'topLeft', 'topRight']).def(
|
||
'bottomLeft',
|
||
),
|
||
/** 输入框占位文本*/
|
||
placeholder: PropTypes.string.def('Please select'),
|
||
/** 输入框大小，可选 `large` `default` `small` */
|
||
size: PropTypes.oneOf(['large', 'default', 'small']),
|
||
/** 禁用*/
|
||
disabled: PropTypes.bool.def(false),
|
||
/** 是否支持清除*/
|
||
allowClear: PropTypes.bool.def(true),
|
||
showSearch: PropTypes.oneOfType([Boolean, ShowSearchType]),
|
||
notFoundContent: PropTypes.any.def('Not Found'),
|
||
loadData: PropTypes.func,
|
||
/** 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: PropTypes.bool,
|
||
/** 浮层可见变化时回调 */
|
||
// onPopupVisibleChange?: (popupVisible: boolean) => void;
|
||
prefixCls: PropTypes.string.def('ant-cascader'),
|
||
inputPrefixCls: PropTypes.string.def('ant-input'),
|
||
getPopupContainer: PropTypes.func,
|
||
popupVisible: PropTypes.bool,
|
||
fieldNames: FieldNamesType,
|
||
autoFocus: PropTypes.bool,
|
||
suffixIcon: PropTypes.any,
|
||
};
|
||
|
||
// We limit the filtered item count by default
|
||
const defaultLimit = 50;
|
||
|
||
function defaultFilterOption(inputValue, path, names) {
|
||
return path.some(option => option[names.label].indexOf(inputValue) > -1);
|
||
}
|
||
|
||
function defaultSortFilteredOption(a, b, inputValue, names) {
|
||
function callback(elem) {
|
||
return elem[names.label].indexOf(inputValue) > -1;
|
||
}
|
||
|
||
return a.findIndex(callback) - b.findIndex(callback);
|
||
}
|
||
|
||
function getFilledFieldNames({ fieldNames = {} }) {
|
||
const names = {
|
||
children: fieldNames.children || 'children',
|
||
label: fieldNames.label || 'label',
|
||
value: fieldNames.value || 'value',
|
||
};
|
||
return names;
|
||
}
|
||
|
||
function flattenTree(options = [], props, ancestor = []) {
|
||
const names = getFilledFieldNames(props);
|
||
let flattenOptions = [];
|
||
const childrenName = names.children;
|
||
options.forEach(option => {
|
||
const path = ancestor.concat(option);
|
||
if (props.changeOnSelect || !option[childrenName] || !option[childrenName].length) {
|
||
flattenOptions.push(path);
|
||
}
|
||
if (option[childrenName]) {
|
||
flattenOptions = flattenOptions.concat(flattenTree(option[childrenName], props, path));
|
||
}
|
||
});
|
||
return flattenOptions;
|
||
}
|
||
|
||
const defaultDisplayRender = ({ labels }) => labels.join(' / ');
|
||
|
||
const Cascader = {
|
||
inheritAttrs: false,
|
||
name: 'ACascader',
|
||
mixins: [BaseMixin],
|
||
props: CascaderProps,
|
||
model: {
|
||
prop: 'value',
|
||
event: 'change',
|
||
},
|
||
inject: {
|
||
configProvider: { default: () => ({}) },
|
||
localeData: { default: () => ({}) },
|
||
},
|
||
data() {
|
||
this.cachedOptions = [];
|
||
const { value, defaultValue, popupVisible, showSearch, options } = this;
|
||
return {
|
||
sValue: value || defaultValue || [],
|
||
inputValue: '',
|
||
inputFocused: false,
|
||
sPopupVisible: popupVisible,
|
||
flattenOptions: showSearch ? flattenTree(options, this.$props) : undefined,
|
||
};
|
||
},
|
||
mounted() {
|
||
this.$nextTick(() => {
|
||
if (this.autoFocus && !this.showSearch && !this.disabled) {
|
||
this.$refs.picker.focus();
|
||
}
|
||
});
|
||
},
|
||
watch: {
|
||
value(val) {
|
||
this.setState({ sValue: val || [] });
|
||
},
|
||
popupVisible(val) {
|
||
this.setState({ sPopupVisible: val });
|
||
},
|
||
options(val) {
|
||
if (this.showSearch) {
|
||
this.setState({ flattenOptions: flattenTree(val, this.$props) });
|
||
}
|
||
},
|
||
},
|
||
methods: {
|
||
highlightKeyword(str, keyword, prefixCls) {
|
||
return str
|
||
.split(keyword)
|
||
.map((node, index) =>
|
||
index === 0
|
||
? node
|
||
: [<span class={`${prefixCls}-menu-item-keyword`}>{keyword}</span>, node],
|
||
);
|
||
},
|
||
|
||
defaultRenderFilteredOption({ inputValue, path, prefixCls, names }) {
|
||
return path.map((option, index) => {
|
||
const label = option[names.label];
|
||
const node =
|
||
label.indexOf(inputValue) > -1
|
||
? this.highlightKeyword(label, inputValue, prefixCls)
|
||
: label;
|
||
return index === 0 ? node : [' / ', node];
|
||
});
|
||
},
|
||
handleChange(value, selectedOptions) {
|
||
this.setState({ inputValue: '' });
|
||
if (selectedOptions[0].__IS_FILTERED_OPTION) {
|
||
const unwrappedValue = value[0];
|
||
const unwrappedSelectedOptions = selectedOptions[0].path;
|
||
this.setValue(unwrappedValue, unwrappedSelectedOptions);
|
||
return;
|
||
}
|
||
this.setValue(value, selectedOptions);
|
||
},
|
||
|
||
handlePopupVisibleChange(popupVisible) {
|
||
if (!hasProp(this, 'popupVisible')) {
|
||
this.setState(state => ({
|
||
sPopupVisible: popupVisible,
|
||
inputFocused: popupVisible,
|
||
inputValue: popupVisible ? state.inputValue : '',
|
||
}));
|
||
}
|
||
this.$emit('popupVisibleChange', popupVisible);
|
||
},
|
||
handleInputFocus(e) {
|
||
this.$emit('focus', e);
|
||
},
|
||
|
||
handleInputBlur(e) {
|
||
this.setState({
|
||
inputFocused: false,
|
||
});
|
||
this.$emit('blur', e);
|
||
},
|
||
|
||
handleInputClick(e) {
|
||
const { inputFocused, sPopupVisible } = this;
|
||
// Prevent `Trigger` behaviour.
|
||
if (inputFocused || sPopupVisible) {
|
||
e.stopPropagation();
|
||
if (e.nativeEvent && e.nativeEvent.stopImmediatePropagation) {
|
||
e.nativeEvent.stopImmediatePropagation();
|
||
}
|
||
}
|
||
},
|
||
|
||
handleKeyDown(e) {
|
||
if (e.keyCode === KeyCode.BACKSPACE) {
|
||
e.stopPropagation();
|
||
}
|
||
},
|
||
|
||
handleInputChange(e) {
|
||
const inputValue = e.target.value;
|
||
this.setState({ inputValue });
|
||
},
|
||
|
||
setValue(value, selectedOptions) {
|
||
if (!hasProp(this, 'value')) {
|
||
this.setState({ sValue: value });
|
||
}
|
||
this.$emit('change', value, selectedOptions);
|
||
},
|
||
|
||
getLabel() {
|
||
const { options, $scopedSlots } = this;
|
||
const names = getFilledFieldNames(this.$props);
|
||
const displayRender =
|
||
this.displayRender || $scopedSlots.displayRender || defaultDisplayRender;
|
||
const value = this.sValue;
|
||
const unwrappedValue = Array.isArray(value[0]) ? value[0] : value;
|
||
const selectedOptions = arrayTreeFilter(
|
||
options,
|
||
(o, level) => o[names.value] === unwrappedValue[level],
|
||
{ childrenKeyName: names.children },
|
||
);
|
||
const labels = selectedOptions.map(o => o[names.label]);
|
||
return displayRender({ labels, selectedOptions });
|
||
},
|
||
|
||
clearSelection(e) {
|
||
e.preventDefault();
|
||
e.stopPropagation();
|
||
if (!this.inputValue) {
|
||
this.setValue([]);
|
||
this.handlePopupVisibleChange(false);
|
||
} else {
|
||
this.setState({ inputValue: '' });
|
||
}
|
||
},
|
||
|
||
generateFilteredOptions(prefixCls) {
|
||
const { showSearch, notFoundContent, $scopedSlots } = this;
|
||
const names = getFilledFieldNames(this.$props);
|
||
const {
|
||
filter = defaultFilterOption,
|
||
// render = this.defaultRenderFilteredOption,
|
||
sort = defaultSortFilteredOption,
|
||
limit = defaultLimit,
|
||
} = showSearch;
|
||
const render =
|
||
showSearch.render || $scopedSlots.showSearchRender || this.defaultRenderFilteredOption;
|
||
const { flattenOptions = [], inputValue } = this.$data;
|
||
|
||
// Limit the filter if needed
|
||
let filtered;
|
||
if (limit > 0) {
|
||
filtered = [];
|
||
let matchCount = 0;
|
||
|
||
// Perf optimization to filter items only below the limit
|
||
flattenOptions.some(path => {
|
||
const match = filter(inputValue, path, names);
|
||
if (match) {
|
||
filtered.push(path);
|
||
matchCount += 1;
|
||
}
|
||
return matchCount >= limit;
|
||
});
|
||
} else {
|
||
warning(
|
||
typeof limit !== 'number',
|
||
"'limit' of showSearch in Cascader should be positive number or false.",
|
||
);
|
||
filtered = flattenOptions.filter(path => filter(inputValue, path, names));
|
||
}
|
||
|
||
filtered.sort((a, b) => sort(a, b, inputValue, names));
|
||
|
||
if (filtered.length > 0) {
|
||
return filtered.map(path => {
|
||
return {
|
||
__IS_FILTERED_OPTION: true,
|
||
path,
|
||
[names.label]: render({ inputValue, path, prefixCls, names }),
|
||
[names.value]: path.map(o => o[names.value]),
|
||
disabled: path.some(o => !!o.disabled),
|
||
};
|
||
});
|
||
}
|
||
return [
|
||
{ [names.label]: notFoundContent, [names.value]: 'ANT_CASCADER_NOT_FOUND', disabled: true },
|
||
];
|
||
},
|
||
|
||
focus() {
|
||
if (this.showSearch) {
|
||
this.$refs.input.focus();
|
||
} else {
|
||
this.$refs.picker.focus();
|
||
}
|
||
},
|
||
|
||
blur() {
|
||
if (this.showSearch) {
|
||
this.$refs.input.blur();
|
||
} else {
|
||
this.$refs.picker.blur();
|
||
}
|
||
},
|
||
},
|
||
|
||
render() {
|
||
const { $slots, sPopupVisible, inputValue, $listeners, configProvider, localeData } = this;
|
||
const { sValue: value, inputFocused } = this.$data;
|
||
const props = getOptionProps(this);
|
||
let suffixIcon = getComponentFromProp(this, 'suffixIcon');
|
||
suffixIcon = Array.isArray(suffixIcon) ? suffixIcon[0] : suffixIcon;
|
||
const { getPopupContainer: getContextPopupContainer } = configProvider;
|
||
const {
|
||
prefixCls,
|
||
inputPrefixCls,
|
||
placeholder = localeData.placeholder,
|
||
size,
|
||
disabled,
|
||
allowClear,
|
||
showSearch = false,
|
||
...otherProps
|
||
} = props;
|
||
|
||
const sizeCls = classNames({
|
||
[`${inputPrefixCls}-lg`]: size === 'large',
|
||
[`${inputPrefixCls}-sm`]: size === 'small',
|
||
});
|
||
const clearIcon =
|
||
(allowClear && !disabled && value.length > 0) || inputValue ? (
|
||
<Icon
|
||
type="close-circle"
|
||
theme="filled"
|
||
class={`${prefixCls}-picker-clear`}
|
||
onClick={this.clearSelection}
|
||
key="clear-icon"
|
||
/>
|
||
) : null;
|
||
const arrowCls = classNames({
|
||
[`${prefixCls}-picker-arrow`]: true,
|
||
[`${prefixCls}-picker-arrow-expand`]: sPopupVisible,
|
||
});
|
||
const pickerCls = classNames(getClass(this), `${prefixCls}-picker`, {
|
||
[`${prefixCls}-picker-with-value`]: inputValue,
|
||
[`${prefixCls}-picker-disabled`]: disabled,
|
||
[`${prefixCls}-picker-${size}`]: !!size,
|
||
[`${prefixCls}-picker-show-search`]: !!showSearch,
|
||
[`${prefixCls}-picker-focused`]: inputFocused,
|
||
});
|
||
|
||
// Fix bug of https://github.com/facebook/react/pull/5004
|
||
// and https://fb.me/react-unknown-prop
|
||
const tempInputProps = omit(otherProps, [
|
||
'options',
|
||
'popupPlacement',
|
||
'transitionName',
|
||
'displayRender',
|
||
'changeOnSelect',
|
||
'expandTrigger',
|
||
'popupVisible',
|
||
'getPopupContainer',
|
||
'loadData',
|
||
'popupClassName',
|
||
'filterOption',
|
||
'renderFilteredOption',
|
||
'sortFilteredOption',
|
||
'notFoundContent',
|
||
'defaultValue',
|
||
'fieldNames',
|
||
]);
|
||
|
||
let options = props.options;
|
||
if (inputValue) {
|
||
options = this.generateFilteredOptions(prefixCls);
|
||
}
|
||
// Dropdown menu should keep previous status until it is fully closed.
|
||
if (!sPopupVisible) {
|
||
options = this.cachedOptions;
|
||
} else {
|
||
this.cachedOptions = options;
|
||
}
|
||
|
||
const dropdownMenuColumnStyle = {};
|
||
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.matchInputWidth !== false;
|
||
if (resultListMatchInputWidth && inputValue && this.input) {
|
||
dropdownMenuColumnStyle.width = this.input.input.offsetWidth;
|
||
}
|
||
// showSearch时，focus、blur在input上触发，反之在ref='picker'上触发
|
||
const inputProps = {
|
||
props: {
|
||
...tempInputProps,
|
||
prefixCls: inputPrefixCls,
|
||
placeholder: value && value.length > 0 ? undefined : placeholder,
|
||
value: inputValue,
|
||
disabled: disabled,
|
||
readOnly: !showSearch,
|
||
autoComplete: 'off',
|
||
},
|
||
class: `${prefixCls}-input ${sizeCls}`,
|
||
ref: 'input',
|
||
on: {
|
||
focus: showSearch ? this.handleInputFocus : noop,
|
||
click: showSearch ? this.handleInputClick : noop,
|
||
blur: showSearch ? this.handleInputBlur : noop,
|
||
keydown: this.handleKeyDown,
|
||
change: showSearch ? this.handleInputChange : noop,
|
||
},
|
||
attrs: getAttrs(this),
|
||
};
|
||
const children = filterEmpty($slots.default);
|
||
const inputIcon = (suffixIcon &&
|
||
(isValidElement(suffixIcon) ? (
|
||
cloneElement(suffixIcon, {
|
||
class: {
|
||
[`${prefixCls}-picker-arrow`]: true,
|
||
},
|
||
})
|
||
) : (
|
||
<span class={`${prefixCls}-picker-arrow`}>{suffixIcon}</span>
|
||
))) || <Icon type="down" class={arrowCls} />;
|
||
|
||
const input = children.length ? (
|
||
children
|
||
) : (
|
||
<span class={pickerCls} style={getStyle(this)} ref="picker">
|
||
{showSearch ? <span class={`${prefixCls}-picker-label`}>{this.getLabel()}</span> : null}
|
||
<Input {...inputProps} />
|
||
{!showSearch ? <span class={`${prefixCls}-picker-label`}>{this.getLabel()}</span> : null}
|
||
{clearIcon}
|
||
{inputIcon}
|
||
</span>
|
||
);
|
||
|
||
const expandIcon = <Icon type="right" />;
|
||
|
||
const loadingIcon = (
|
||
<span class={`${prefixCls}-menu-item-loading-icon`}>
|
||
<Icon type="redo" spin />
|
||
</span>
|
||
);
|
||
const getPopupContainer = props.getPopupContainer || getContextPopupContainer;
|
||
const cascaderProps = {
|
||
props: {
|
||
...props,
|
||
getPopupContainer,
|
||
options: options,
|
||
value: value,
|
||
popupVisible: sPopupVisible,
|
||
dropdownMenuColumnStyle: dropdownMenuColumnStyle,
|
||
expandIcon,
|
||
loadingIcon,
|
||
},
|
||
on: {
|
||
...$listeners,
|
||
popupVisibleChange: this.handlePopupVisibleChange,
|
||
change: this.handleChange,
|
||
},
|
||
};
|
||
return <VcCascader {...cascaderProps}>{input}</VcCascader>;
|
||
},
|
||
};
|
||
|
||
/* istanbul ignore next */
|
||
Cascader.install = function(Vue) {
|
||
Vue.component(Cascader.name, Cascader);
|
||
};
|
||
|
||
export default Cascader;
|