627 lines
19 KiB
TypeScript
627 lines
19 KiB
TypeScript
import { App, inject, provide, PropType, defineComponent, CSSProperties } from 'vue';
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import PropTypes from '../_util/vue-types';
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import VcCascader from '../vc-cascader';
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import arrayTreeFilter from 'array-tree-filter';
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import classNames from '../_util/classNames';
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import omit from 'omit.js';
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import KeyCode from '../_util/KeyCode';
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import Input from '../input';
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import CloseCircleFilled from '@ant-design/icons-vue/CloseCircleFilled';
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import DownOutlined from '@ant-design/icons-vue/DownOutlined';
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import RightOutlined from '@ant-design/icons-vue/RightOutlined';
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import RedoOutlined from '@ant-design/icons-vue/RedoOutlined';
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import {
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hasProp,
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getOptionProps,
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isValidElement,
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getComponent,
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splitAttrs,
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findDOMNode,
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getSlot,
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} from '../_util/props-util';
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import BaseMixin from '../_util/BaseMixin';
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import { cloneElement } from '../_util/vnode';
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import warning from '../_util/warning';
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import { defaultConfigProvider } from '../config-provider';
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import { tuple, VueNode } from '../_util/type';
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import { RenderEmptyHandler } from '../config-provider/renderEmpty';
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export interface CascaderOptionType {
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value?: string | number;
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label?: VueNode;
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disabled?: boolean;
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isLeaf?: boolean;
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loading?: boolean;
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children?: CascaderOptionType[];
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[key: string]: any;
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}
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export interface FieldNamesType {
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value?: string;
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label?: string;
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children?: string;
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}
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export interface FilledFieldNamesType {
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value: string;
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label: string;
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children: string;
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}
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// const CascaderOptionType = PropTypes.shape({
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// value: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
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// label: PropTypes.any,
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// disabled: PropTypes.looseBool,
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// children: PropTypes.array,
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// key: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
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// }).loose;
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// const FieldNamesType = PropTypes.shape({
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// value: PropTypes.string.isRequired,
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// label: PropTypes.string.isRequired,
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// children: PropTypes.string,
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// }).loose;
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export interface ShowSearchType {
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filter?: (inputValue: string, path: CascaderOptionType[], names: FilledFieldNamesType) => boolean;
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render?: (
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inputValue: string,
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path: CascaderOptionType[],
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prefixCls: string | undefined,
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names: FilledFieldNamesType,
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) => VueNode;
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sort?: (
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a: CascaderOptionType[],
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b: CascaderOptionType[],
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inputValue: string,
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names: FilledFieldNamesType,
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) => number;
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matchInputWidth?: boolean;
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limit?: number | false;
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}
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// const ShowSearchType = PropTypes.shape({
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// filter: PropTypes.func,
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// render: PropTypes.func,
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// sort: PropTypes.func,
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// matchInputWidth: PropTypes.looseBool,
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// limit: withUndefined(PropTypes.oneOfType([Boolean, Number])),
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// }).loose;
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function noop() {}
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const CascaderProps = {
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/** 可选项数据源 */
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options: { type: Array as PropType<CascaderOptionType[]>, default: [] },
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/** 默认的选中项 */
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defaultValue: PropTypes.array,
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/** 指定选中项 */
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value: PropTypes.array,
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/** 选择完成后的回调 */
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// onChange?: (value: string[], selectedOptions?: CascaderOptionType[]) => void;
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/** 选择后展示的渲染函数 */
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displayRender: PropTypes.func,
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transitionName: PropTypes.string.def('slide-up'),
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popupStyle: PropTypes.object.def(() => ({})),
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/** 自定义浮层类名 */
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popupClassName: PropTypes.string,
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/** 浮层预设位置：`bottomLeft` `bottomRight` `topLeft` `topRight` */
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popupPlacement: PropTypes.oneOf(tuple('bottomLeft', 'bottomRight', 'topLeft', 'topRight')).def(
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'bottomLeft',
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),
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/** 输入框占位文本*/
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placeholder: PropTypes.string.def('Please select'),
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/** 输入框大小，可选 `large` `default` `small` */
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size: PropTypes.oneOf(tuple('large', 'default', 'small')),
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/** 禁用*/
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disabled: PropTypes.looseBool.def(false),
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/** 是否支持清除*/
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allowClear: PropTypes.looseBool.def(true),
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showSearch: {
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type: [Boolean, Object] as PropType<boolean | ShowSearchType | undefined>,
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default: undefined as PropType<boolean | ShowSearchType | undefined>,
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},
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notFoundContent: PropTypes.VNodeChild,
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loadData: PropTypes.func,
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/** 次级菜单的展开方式，可选 'click' 和 'hover' */
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expandTrigger: PropTypes.oneOf(tuple('click', 'hover')),
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/** 当此项为 true 时，点选每级菜单选项值都会发生变化 */
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changeOnSelect: PropTypes.looseBool,
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/** 浮层可见变化时回调 */
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// onPopupVisibleChange?: (popupVisible: boolean) => void;
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prefixCls: PropTypes.string,
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inputPrefixCls: PropTypes.string,
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getPopupContainer: PropTypes.func,
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popupVisible: PropTypes.looseBool,
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fieldNames: { type: Object as PropType<FieldNamesType> },
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autofocus: PropTypes.looseBool,
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suffixIcon: PropTypes.VNodeChild,
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showSearchRender: PropTypes.any,
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onChange: PropTypes.func,
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onPopupVisibleChange: PropTypes.func,
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onFocus: PropTypes.func,
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onBlur: PropTypes.func,
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onSearch: PropTypes.func,
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'onUpdate:value': PropTypes.func,
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};
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// We limit the filtered item count by default
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const defaultLimit = 50;
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function defaultFilterOption(
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inputValue: string,
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path: CascaderOptionType[],
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names: FilledFieldNamesType,
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) {
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return path.some(option => option[names.label].indexOf(inputValue) > -1);
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}
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function defaultSortFilteredOption(
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a: CascaderOptionType[],
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b: CascaderOptionType[],
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inputValue: string,
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names: FilledFieldNamesType,
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) {
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function callback(elem) {
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return elem[names.label].indexOf(inputValue) > -1;
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}
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return a.findIndex(callback) - b.findIndex(callback);
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}
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function getFilledFieldNames(props: any) {
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const fieldNames = (props.fieldNames || {}) as FieldNamesType;
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const names: FilledFieldNamesType = {
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children: fieldNames.children || 'children',
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label: fieldNames.label || 'label',
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value: fieldNames.value || 'value',
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};
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return names;
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}
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function flattenTree(
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options: CascaderOptionType[],
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props: any,
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ancestor: CascaderOptionType[] = [],
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) {
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const names: FilledFieldNamesType = getFilledFieldNames(props);
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let flattenOptions = [];
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const childrenName = names.children;
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options.forEach(option => {
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const path = ancestor.concat(option);
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if (props.changeOnSelect || !option[childrenName] || !option[childrenName].length) {
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flattenOptions.push(path);
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}
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if (option[childrenName]) {
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flattenOptions = flattenOptions.concat(flattenTree(option[childrenName], props, path));
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}
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});
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return flattenOptions;
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}
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const defaultDisplayRender = ({ labels }) => labels.join(' / ');
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const Cascader = defineComponent({
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inheritAttrs: false,
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name: 'ACascader',
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mixins: [BaseMixin],
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props: CascaderProps,
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// model: {
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// prop: 'value',
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// event: 'change',
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// },
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created() {
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provide('savePopupRef', this.savePopupRef);
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},
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setup() {
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return {
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configProvider: inject('configProvider', defaultConfigProvider),
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localeData: inject('localeData', {} as any),
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cachedOptions: [],
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popupRef: undefined,
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input: undefined,
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};
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},
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data() {
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const { value, defaultValue, popupVisible, showSearch, options } = this.$props;
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return {
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sValue: value || defaultValue || [],
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inputValue: '',
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inputFocused: false,
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sPopupVisible: popupVisible,
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flattenOptions: showSearch ? flattenTree(options, this.$props) : undefined,
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};
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},
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// mounted() {
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// this.$nextTick(() => {
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// if (this.autofocus && !this.showSearch && !this.disabled) {
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// this.$refs.picker.focus();
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// }
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// });
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// },
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watch: {
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value(val) {
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this.setState({ sValue: val || [] });
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},
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popupVisible(val) {
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this.setState({ sPopupVisible: val });
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},
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options(val) {
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if (this.showSearch) {
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this.setState({ flattenOptions: flattenTree(val, this.$props as any) });
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}
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},
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},
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methods: {
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savePopupRef(ref: any) {
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this.popupRef = ref;
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},
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highlightKeyword(str: string, keyword: string, prefixCls: string | undefined) {
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return str
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.split(keyword)
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.map((node, index) =>
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index === 0
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? node
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: [<span class={`${prefixCls}-menu-item-keyword`}>{keyword}</span>, node],
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);
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},
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defaultRenderFilteredOption(opt: {
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inputValue: string;
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path: CascaderOptionType[];
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prefixCls: string | undefined;
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names: FilledFieldNamesType;
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}) {
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const { inputValue, path, prefixCls, names } = opt;
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return path.map((option, index) => {
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const label = option[names.label];
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const node =
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label.indexOf(inputValue) > -1
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? this.highlightKeyword(label, inputValue, prefixCls)
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: label;
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return index === 0 ? node : [' / ', node];
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});
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},
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saveInput(node: any) {
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this.input = node;
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},
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handleChange(value: any, selectedOptions: CascaderOptionType[]) {
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this.setState({ inputValue: '' });
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if (selectedOptions[0].__IS_FILTERED_OPTION) {
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const unwrappedValue = value[0];
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const unwrappedSelectedOptions = selectedOptions[0].path;
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this.setValue(unwrappedValue, unwrappedSelectedOptions);
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return;
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}
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this.setValue(value, selectedOptions);
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},
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handlePopupVisibleChange(popupVisible: boolean) {
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if (!hasProp(this, 'popupVisible')) {
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this.setState((state: any) => ({
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sPopupVisible: popupVisible,
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inputFocused: popupVisible,
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inputValue: popupVisible ? state.inputValue : '',
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}));
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}
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this.$emit('popupVisibleChange', popupVisible);
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},
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handleInputFocus(e: InputEvent) {
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this.$emit('focus', e);
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},
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handleInputBlur(e: InputEvent) {
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this.setState({
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inputFocused: false,
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});
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this.$emit('blur', e);
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},
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handleInputClick(e: MouseEvent & { nativeEvent?: any }) {
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const { inputFocused, sPopupVisible } = this;
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// Prevent `Trigger` behaviour.
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if (inputFocused || sPopupVisible) {
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e.stopPropagation();
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if (e.nativeEvent && e.nativeEvent.stopImmediatePropagation) {
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e.nativeEvent.stopImmediatePropagation();
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}
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}
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},
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handleKeyDown(e: KeyboardEvent) {
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if (e.keyCode === KeyCode.BACKSPACE || e.keyCode === KeyCode.SPACE) {
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e.stopPropagation();
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}
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},
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handleInputChange(e: Event) {
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const inputValue = (e.target as any).value;
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this.setState({ inputValue });
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this.$emit('search', inputValue);
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},
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setValue(value: string[] | number[], selectedOptions: CascaderOptionType[] = []) {
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if (!hasProp(this, 'value')) {
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this.setState({ sValue: value });
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}
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this.$emit('update:value', value);
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this.$emit('change', value, selectedOptions);
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},
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getLabel() {
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const { options } = this;
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const names = getFilledFieldNames(this.$props);
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const displayRender = getComponent(this, 'displayRender', {}, false) || defaultDisplayRender;
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const value = this.sValue;
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const unwrappedValue = Array.isArray(value[0]) ? value[0] : value;
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const selectedOptions = arrayTreeFilter(
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options,
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(o, level) => o[names.value] === unwrappedValue[level],
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{ childrenKeyName: names.children },
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);
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const labels = selectedOptions.map(o => o[names.label]);
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return displayRender({ labels, selectedOptions });
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},
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clearSelection(e: MouseEvent) {
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e.preventDefault();
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e.stopPropagation();
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if (!this.inputValue) {
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this.setValue([]);
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this.handlePopupVisibleChange(false);
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} else {
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this.setState({ inputValue: '' });
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}
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},
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generateFilteredOptions(prefixCls: string | undefined, renderEmpty: RenderEmptyHandler) {
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const { showSearch, notFoundContent } = this;
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const names: FilledFieldNamesType = getFilledFieldNames(this.$props);
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const {
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filter = defaultFilterOption,
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// render = this.defaultRenderFilteredOption,
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sort = defaultSortFilteredOption,
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limit = defaultLimit,
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} = showSearch as ShowSearchType;
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const render =
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(showSearch as ShowSearchType).render ||
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getComponent(this, 'showSearchRender') ||
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this.defaultRenderFilteredOption;
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const { flattenOptions = [], inputValue } = this.$data;
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// Limit the filter if needed
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let filtered: Array<CascaderOptionType[]>;
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if (limit > 0) {
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filtered = [];
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let matchCount = 0;
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// Perf optimization to filter items only below the limit
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flattenOptions.some(path => {
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const match = filter(inputValue, path, names);
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if (match) {
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filtered.push(path);
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matchCount += 1;
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}
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return matchCount >= limit;
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});
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} else {
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warning(
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typeof limit !== 'number',
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'Cascader',
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"'limit' of showSearch in Cascader should be positive number or false.",
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);
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filtered = flattenOptions.filter(path => filter(inputValue, path, names));
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}
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filtered.sort((a, b) => sort(a, b, inputValue, names));
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if (filtered.length > 0) {
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return filtered.map(path => {
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return {
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__IS_FILTERED_OPTION: true,
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path,
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[names.label]: render({ inputValue, path, prefixCls, names }),
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[names.value]: path.map(o => o[names.value]),
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disabled: path.some(o => !!o.disabled),
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};
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});
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}
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return [
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{
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[names.label]: notFoundContent || renderEmpty('Cascader'),
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[names.value]: 'ANT_CASCADER_NOT_FOUND',
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disabled: true,
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},
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];
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},
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focus() {
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this.input && this.input.focus();
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},
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blur() {
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this.input && this.input.blur();
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},
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},
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render() {
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const { sPopupVisible, inputValue, configProvider, localeData } = this;
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const { sValue: value, inputFocused } = this.$data;
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const props = getOptionProps(this);
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let suffixIcon = getComponent(this, 'suffixIcon');
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suffixIcon = Array.isArray(suffixIcon) ? suffixIcon[0] : suffixIcon;
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const { getPopupContainer: getContextPopupContainer } = configProvider;
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const {
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prefixCls: customizePrefixCls,
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inputPrefixCls: customizeInputPrefixCls,
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placeholder = localeData.placeholder,
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size,
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disabled,
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allowClear,
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showSearch = false,
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notFoundContent,
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...otherProps
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} = props as any;
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const { onEvents, extraAttrs } = splitAttrs(this.$attrs);
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const { class: className, style, ...restAttrs } = extraAttrs;
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const getPrefixCls = this.configProvider.getPrefixCls;
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const renderEmpty = this.configProvider.renderEmpty;
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const prefixCls = getPrefixCls('cascader', customizePrefixCls);
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const inputPrefixCls = getPrefixCls('input', customizeInputPrefixCls);
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const sizeCls = classNames({
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[`${inputPrefixCls}-lg`]: size === 'large',
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[`${inputPrefixCls}-sm`]: size === 'small',
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});
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const clearIcon =
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(allowClear && !disabled && value.length > 0) || inputValue ? (
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<CloseCircleFilled
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class={`${prefixCls}-picker-clear`}
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onClick={this.clearSelection}
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key="clear-icon"
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/>
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) : null;
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const arrowCls = classNames({
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[`${prefixCls}-picker-arrow`]: true,
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[`${prefixCls}-picker-arrow-expand`]: sPopupVisible,
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});
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const pickerCls = classNames(className, `${prefixCls}-picker`, {
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[`${prefixCls}-picker-with-value`]: inputValue,
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[`${prefixCls}-picker-disabled`]: disabled,
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[`${prefixCls}-picker-${size}`]: !!size,
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[`${prefixCls}-picker-show-search`]: !!showSearch,
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[`${prefixCls}-picker-focused`]: inputFocused,
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});
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// Fix bug of https://github.com/facebook/react/pull/5004
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// and https://fb.me/react-unknown-prop
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const tempInputProps = omit(otherProps, [
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'popupStyle',
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'options',
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'popupPlacement',
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'transitionName',
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'displayRender',
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'changeOnSelect',
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'expandTrigger',
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'popupVisible',
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'getPopupContainer',
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'loadData',
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'popupClassName',
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'filterOption',
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'renderFilteredOption',
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'sortFilteredOption',
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'notFoundContent',
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'defaultValue',
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'fieldNames',
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'onChange',
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'onPopupVisibleChange',
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'onFocus',
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'onBlur',
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'onSearch',
|
||
'onUpdate:value',
|
||
]);
|
||
|
||
let options = props.options;
|
||
const names = getFilledFieldNames(this.$props);
|
||
if (options && options.length > 0) {
|
||
if (inputValue) {
|
||
options = this.generateFilteredOptions(prefixCls, renderEmpty);
|
||
}
|
||
} else {
|
||
options = [
|
||
{
|
||
[names.label]: notFoundContent || renderEmpty('Cascader'),
|
||
[names.value]: 'ANT_CASCADER_NOT_FOUND',
|
||
disabled: true,
|
||
},
|
||
];
|
||
}
|
||
|
||
// Dropdown menu should keep previous status until it is fully closed.
|
||
if (!sPopupVisible) {
|
||
options = this.cachedOptions;
|
||
} else {
|
||
this.cachedOptions = options;
|
||
}
|
||
|
||
const dropdownMenuColumnStyle: CSSProperties = {};
|
||
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 || isNotFound) && this.input) {
|
||
dropdownMenuColumnStyle.width = findDOMNode(this.input.input).offsetWidth + 'px';
|
||
}
|
||
// showSearch时，focus、blur在input上触发，反之在ref='picker'上触发
|
||
const inputProps = {
|
||
...restAttrs,
|
||
...tempInputProps,
|
||
prefixCls: inputPrefixCls,
|
||
placeholder: value && value.length > 0 ? undefined : placeholder,
|
||
value: inputValue,
|
||
disabled,
|
||
readonly: !showSearch,
|
||
autocomplete: 'off',
|
||
class: `${prefixCls}-input ${sizeCls}`,
|
||
onFocus: this.handleInputFocus,
|
||
onClick: showSearch ? this.handleInputClick : noop,
|
||
onBlur: showSearch ? this.handleInputBlur : props.onBlur,
|
||
onKeydown: this.handleKeyDown,
|
||
onChange: showSearch ? this.handleInputChange : noop,
|
||
};
|
||
const children = getSlot(this);
|
||
const inputIcon = (suffixIcon &&
|
||
(isValidElement(suffixIcon) ? (
|
||
cloneElement(suffixIcon, {
|
||
class: `${prefixCls}-picker-arrow`,
|
||
})
|
||
) : (
|
||
<span class={`${prefixCls}-picker-arrow`}>{suffixIcon}</span>
|
||
))) || <DownOutlined class={arrowCls} />;
|
||
|
||
const input = children.length ? (
|
||
children
|
||
) : (
|
||
<span class={pickerCls} style={style}>
|
||
<span class={`${prefixCls}-picker-label`}>{this.getLabel()}</span>
|
||
<Input {...inputProps} ref={this.saveInput} />
|
||
{clearIcon}
|
||
{inputIcon}
|
||
</span>
|
||
);
|
||
|
||
const expandIcon = <RightOutlined />;
|
||
|
||
const loadingIcon = (
|
||
<span class={`${prefixCls}-menu-item-loading-icon`}>
|
||
<RedoOutlined spin />
|
||
</span>
|
||
);
|
||
const getPopupContainer = props.getPopupContainer || getContextPopupContainer;
|
||
const cascaderProps = {
|
||
...props,
|
||
getPopupContainer,
|
||
options,
|
||
prefixCls,
|
||
value,
|
||
popupVisible: sPopupVisible,
|
||
dropdownMenuColumnStyle,
|
||
expandIcon,
|
||
loadingIcon,
|
||
...onEvents,
|
||
onPopupVisibleChange: this.handlePopupVisibleChange,
|
||
onChange: this.handleChange,
|
||
};
|
||
return <VcCascader {...cascaderProps}>{input}</VcCascader>;
|
||
},
|
||
});
|
||
|
||
Cascader.install = function(app: App) {
|
||
app.component(Cascader.name, Cascader);
|
||
return app;
|
||
};
|
||
|
||
export default Cascader;
|