index.tsx 29 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762
  1. /* eslint-disable max-lines-per-function */
  2. import React, { MouseEvent } from 'react';
  3. import cls from 'classnames';
  4. import PropTypes from 'prop-types';
  5. import ConfigContext from '../configProvider/context';
  6. import TreeFoundation, { TreeAdapter } from '@douyinfe/semi-foundation/tree/foundation';
  7. import {
  8. convertDataToEntities,
  9. flattenTreeData,
  10. calcExpandedKeysForValues,
  11. calcMotionKeys,
  12. convertJsonToData,
  13. findKeysForValues,
  14. calcCheckedKeys,
  15. calcExpandedKeys,
  16. filterTreeData,
  17. normalizeValue,
  18. updateKeys,
  19. calcDisabledKeys
  20. } from '@douyinfe/semi-foundation/tree/treeUtil';
  21. import { cssClasses, strings } from '@douyinfe/semi-foundation/tree/constants';
  22. import BaseComponent from '../_base/baseComponent';
  23. import { isEmpty, isEqual, get, isFunction } from 'lodash';
  24. import { cloneDeep } from './treeUtil';
  25. import Input from '../input/index';
  26. import { FixedSizeList as VirtualList } from 'react-window';
  27. import AutoSizer from './autoSizer';
  28. import TreeContext from './treeContext';
  29. import TreeNode from './treeNode';
  30. import NodeList from './nodeList';
  31. import LocaleConsumer from '../locale/localeConsumer';
  32. import '@douyinfe/semi-foundation/tree/tree.scss';
  33. import { IconSearch } from '@douyinfe/semi-icons';
  34. import { Locale as LocaleObject } from '../locale/interface';
  35. import {
  36. TreeProps,
  37. TreeState,
  38. TreeNodeProps,
  39. TreeNodeData,
  40. FlattenNode,
  41. KeyEntity,
  42. OptionProps
  43. } from './interface';
  44. export * from './interface';
  45. export { AutoSizerProps } from './autoSizer';
  46. const prefixcls = cssClasses.PREFIX;
  47. class Tree extends BaseComponent<TreeProps, TreeState> {
  48. static contextType = ConfigContext;
  49. static propTypes = {
  50. blockNode: PropTypes.bool,
  51. className: PropTypes.string,
  52. showClear: PropTypes.bool,
  53. defaultExpandAll: PropTypes.bool,
  54. defaultExpandedKeys: PropTypes.array,
  55. defaultValue: PropTypes.oneOfType([PropTypes.string, PropTypes.array]),
  56. directory: PropTypes.bool,
  57. disabled: PropTypes.bool,
  58. emptyContent: PropTypes.node,
  59. expandAll: PropTypes.bool,
  60. expandedKeys: PropTypes.array,
  61. filterTreeNode: PropTypes.oneOfType([PropTypes.func, PropTypes.bool]),
  62. icon: PropTypes.node,
  63. onChangeWithObject: PropTypes.bool,
  64. motion: PropTypes.bool,
  65. multiple: PropTypes.bool,
  66. onChange: PropTypes.func,
  67. onExpand: PropTypes.func,
  68. onSearch: PropTypes.func,
  69. onSelect: PropTypes.func,
  70. onContextMenu: PropTypes.func,
  71. onDoubleClick: PropTypes.func,
  72. searchClassName: PropTypes.string,
  73. searchPlaceholder: PropTypes.string,
  74. searchStyle: PropTypes.object,
  75. selectedKey: PropTypes.string,
  76. showFilteredOnly: PropTypes.bool,
  77. style: PropTypes.object,
  78. treeData: PropTypes.arrayOf(
  79. PropTypes.shape({
  80. key: PropTypes.string.isRequired,
  81. value: PropTypes.oneOfType([PropTypes.string, PropTypes.number]),
  82. label: PropTypes.any,
  83. isLeaf: PropTypes.bool,
  84. })
  85. ),
  86. treeDataSimpleJson: PropTypes.object,
  87. treeNodeFilterProp: PropTypes.string,
  88. value: PropTypes.oneOfType([PropTypes.string, PropTypes.number, PropTypes.array, PropTypes.object]),
  89. virtualize: PropTypes.object,
  90. autoExpandParent: PropTypes.bool,
  91. expandAction: PropTypes.oneOf(strings.EXPAND_ACTION),
  92. searchRender: PropTypes.oneOfType([PropTypes.func, PropTypes.bool]),
  93. renderLabel: PropTypes.func,
  94. renderFullLabel: PropTypes.func,
  95. leafOnly: PropTypes.bool,
  96. loadedKeys: PropTypes.array,
  97. loadData: PropTypes.func,
  98. onLoad: PropTypes.func,
  99. disableStrictly: PropTypes.bool,
  100. draggable: PropTypes.bool,
  101. autoExpandWhenDragEnter: PropTypes.bool,
  102. hideDraggingNode: PropTypes.bool,
  103. renderDraggingNode: PropTypes.func,
  104. onDragEnd: PropTypes.func,
  105. onDragEnter: PropTypes.func,
  106. onDragLeave: PropTypes.func,
  107. onDragOver: PropTypes.func,
  108. onDragStart: PropTypes.func,
  109. onDrop: PropTypes.func,
  110. labelEllipsis: PropTypes.bool,
  111. 'aria-label': PropTypes.string,
  112. };
  113. static defaultProps = {
  114. showClear: true,
  115. disabled: false,
  116. blockNode: true,
  117. multiple: false,
  118. filterTreeNode: false,
  119. autoExpandParent: false,
  120. treeNodeFilterProp: 'label',
  121. defaultExpandAll: false,
  122. expandAll: false,
  123. onChangeWithObject: false,
  124. motion: true,
  125. leafOnly: false,
  126. showFilteredOnly: false,
  127. expandAction: false,
  128. disableStrictly: false,
  129. draggable: false,
  130. autoExpandWhenDragEnter: true,
  131. };
  132. static TreeNode: typeof TreeNode;
  133. inputRef: React.RefObject<typeof Input>;
  134. optionsRef: React.RefObject<any>;
  135. dragNode: any;
  136. onNodeClick: any;
  137. onMotionEnd: any;
  138. constructor(props: TreeProps) {
  139. super(props);
  140. this.state = {
  141. inputValue: '',
  142. keyEntities: {},
  143. treeData: [],
  144. flattenNodes: [],
  145. selectedKeys: [],
  146. checkedKeys: new Set(),
  147. halfCheckedKeys: new Set(),
  148. motionKeys: new Set([]),
  149. motionType: 'hide',
  150. expandedKeys: new Set(props.expandedKeys),
  151. filteredKeys: new Set(),
  152. filteredExpandedKeys: new Set(),
  153. filteredShownKeys: new Set(),
  154. prevProps: null,
  155. loadedKeys: new Set(),
  156. loadingKeys: new Set(),
  157. cachedFlattenNodes: undefined,
  158. cachedKeyValuePairs: {},
  159. disabledKeys: new Set(),
  160. dragging: false,
  161. dragNodesKeys: new Set(),
  162. dragOverNodeKey: null,
  163. dropPosition: null,
  164. };
  165. this.inputRef = React.createRef();
  166. this.optionsRef = React.createRef();
  167. this.foundation = new TreeFoundation(this.adapter);
  168. this.dragNode = null;
  169. }
  170. /**
  171. * Process of getDerivedStateFromProps was inspired by rc-tree
  172. * https://github.com/react-component/tree
  173. */
  174. static getDerivedStateFromProps(props: TreeProps, prevState: TreeState) {
  175. const { prevProps } = prevState;
  176. let treeData;
  177. let keyEntities = prevState.keyEntities || {};
  178. let valueEntities = prevState.cachedKeyValuePairs || {};
  179. const isSeaching = Boolean(props.filterTreeNode && prevState.inputValue && prevState.inputValue.length);
  180. const newState: Partial<TreeState> = {
  181. prevProps: props,
  182. };
  183. // Accept a props field as a parameter to determine whether to update the field
  184. const needUpdate = (name: string) => {
  185. const firstInProps = !prevProps && name in props;
  186. const nameHasChange = prevProps && !isEqual(prevProps[name], props[name]);
  187. return firstInProps || nameHasChange;
  188. };
  189. // Determine whether treeData has changed
  190. const needUpdateData = () => {
  191. const firstInProps = !prevProps && 'treeData' in props;
  192. const treeDataHasChange = prevProps && prevProps.treeData !== props.treeData;
  193. return firstInProps || treeDataHasChange;
  194. };
  195. // Update the data of tree in state
  196. if (needUpdate('treeData') || (props.draggable && needUpdateData())) {
  197. // eslint-disable-next-line prefer-destructuring
  198. treeData = props.treeData;
  199. newState.treeData = treeData;
  200. const entitiesMap = convertDataToEntities(treeData);
  201. newState.keyEntities = {
  202. ...entitiesMap.keyEntities,
  203. };
  204. keyEntities = newState.keyEntities;
  205. newState.cachedKeyValuePairs = { ...entitiesMap.valueEntities };
  206. valueEntities = newState.cachedKeyValuePairs;
  207. } else if (needUpdate('treeDataSimpleJson')) {
  208. // Convert treeDataSimpleJson to treeData
  209. treeData = convertJsonToData(props.treeDataSimpleJson);
  210. newState.treeData = treeData;
  211. const entitiesMap = convertDataToEntities(treeData);
  212. newState.keyEntities = {
  213. ...entitiesMap.keyEntities,
  214. };
  215. keyEntities = newState.keyEntities;
  216. newState.cachedKeyValuePairs = { ...entitiesMap.valueEntities };
  217. valueEntities = newState.cachedKeyValuePairs;
  218. }
  219. // If treeData keys changes, we won't show animation
  220. if (treeData && props.motion) {
  221. if (prevProps && props.motion) {
  222. newState.motionKeys = new Set([]);
  223. newState.motionType = null;
  224. }
  225. }
  226. const expandAllWhenDataChange = (needUpdate('treeDataSimpleJson') || needUpdate('treeData')) && props.expandAll;
  227. if (!isSeaching) {
  228. // Update expandedKeys
  229. if (needUpdate('expandedKeys') || (prevProps && needUpdate('autoExpandParent'))) {
  230. newState.expandedKeys = calcExpandedKeys(
  231. props.expandedKeys,
  232. keyEntities,
  233. props.autoExpandParent || !prevProps
  234. );
  235. // only show animation when treeData does not change
  236. if (prevProps && props.motion && !treeData) {
  237. const { motionKeys, motionType } = calcMotionKeys(
  238. prevState.expandedKeys,
  239. newState.expandedKeys,
  240. keyEntities
  241. );
  242. newState.motionKeys = new Set(motionKeys);
  243. newState.motionType = motionType;
  244. if (motionType === 'hide') {
  245. // cache flatten nodes: expandedKeys changed may not be triggered by interaction
  246. newState.cachedFlattenNodes = cloneDeep(prevState.flattenNodes);
  247. }
  248. }
  249. } else if ((!prevProps && (props.defaultExpandAll || props.expandAll)) || expandAllWhenDataChange) {
  250. newState.expandedKeys = new Set(Object.keys(keyEntities));
  251. } else if (!prevProps && props.defaultExpandedKeys) {
  252. newState.expandedKeys = calcExpandedKeys(props.defaultExpandedKeys, keyEntities);
  253. } else if (!prevProps && props.defaultValue) {
  254. newState.expandedKeys = calcExpandedKeysForValues(
  255. props.defaultValue,
  256. keyEntities,
  257. props.multiple,
  258. valueEntities
  259. );
  260. } else if (!prevProps && props.value) {
  261. newState.expandedKeys = calcExpandedKeysForValues(
  262. props.value,
  263. keyEntities,
  264. props.multiple,
  265. valueEntities
  266. );
  267. }
  268. if (!newState.expandedKeys) {
  269. delete newState.expandedKeys;
  270. }
  271. // Update flattenNodes
  272. if (treeData || newState.expandedKeys) {
  273. const flattenNodes = flattenTreeData(
  274. treeData || prevState.treeData,
  275. newState.expandedKeys || prevState.expandedKeys
  276. );
  277. newState.flattenNodes = flattenNodes;
  278. }
  279. } else {
  280. let filteredState;
  281. // treeData changed while searching
  282. if (treeData) {
  283. // Get filter data
  284. filteredState = filterTreeData({
  285. treeData,
  286. inputValue: prevState.inputValue,
  287. filterTreeNode: props.filterTreeNode,
  288. filterProps: props.treeNodeFilterProp,
  289. showFilteredOnly: props.showFilteredOnly,
  290. keyEntities: newState.keyEntities,
  291. prevExpandedKeys: [...prevState.filteredExpandedKeys],
  292. });
  293. newState.flattenNodes = filteredState.flattenNodes;
  294. newState.motionKeys = new Set([]);
  295. newState.filteredKeys = filteredState.filteredKeys;
  296. newState.filteredShownKeys = filteredState.filteredShownKeys;
  297. newState.filteredExpandedKeys = filteredState.filteredExpandedKeys;
  298. }
  299. // expandedKeys changed while searching
  300. if (props.expandedKeys) {
  301. newState.filteredExpandedKeys = calcExpandedKeys(
  302. props.expandedKeys,
  303. keyEntities,
  304. props.autoExpandParent || !prevProps
  305. );
  306. if (prevProps && props.motion) {
  307. const prevKeys = prevState ? prevState.filteredExpandedKeys : new Set([]);
  308. // only show animation when treeData does not change
  309. if (!treeData) {
  310. const motionResult = calcMotionKeys(
  311. prevKeys,
  312. newState.filteredExpandedKeys,
  313. keyEntities
  314. );
  315. let { motionKeys } = motionResult;
  316. const { motionType } = motionResult;
  317. if (props.showFilteredOnly) {
  318. motionKeys = motionKeys.filter(key => prevState.filteredShownKeys.has(key));
  319. }
  320. if (motionType === 'hide') {
  321. // cache flatten nodes: expandedKeys changed may not be triggered by interaction
  322. newState.cachedFlattenNodes = cloneDeep(prevState.flattenNodes);
  323. }
  324. newState.motionKeys = new Set(motionKeys);
  325. newState.motionType = motionType;
  326. }
  327. }
  328. newState.flattenNodes = flattenTreeData(
  329. treeData || prevState.treeData,
  330. newState.filteredExpandedKeys || prevState.filteredExpandedKeys,
  331. props.showFilteredOnly && prevState.filteredShownKeys
  332. );
  333. }
  334. }
  335. // Handle single selection and multiple selection in controlled mode
  336. const withObject = props.onChangeWithObject;
  337. const isMultiple = props.multiple;
  338. if (!isMultiple) {
  339. // When getting single selection, the selected node
  340. if (needUpdate('value')) {
  341. newState.selectedKeys = findKeysForValues(
  342. // In both cases whether withObject is turned on, the value is standardized to string
  343. normalizeValue(props.value, withObject),
  344. valueEntities,
  345. isMultiple
  346. );
  347. } else if (!prevProps && props.defaultValue) {
  348. newState.selectedKeys = findKeysForValues(
  349. normalizeValue(props.defaultValue, withObject),
  350. valueEntities,
  351. isMultiple
  352. );
  353. } else if (treeData) {
  354. // If `treeData` changed, we also need check it
  355. if (props.value) {
  356. newState.selectedKeys = findKeysForValues(
  357. normalizeValue(props.value, withObject) || '',
  358. valueEntities,
  359. isMultiple
  360. );
  361. }
  362. }
  363. } else {
  364. let checkedKeyValues;
  365. // Get the selected node during multiple selection
  366. if (needUpdate('value')) {
  367. checkedKeyValues = findKeysForValues(
  368. normalizeValue(props.value, withObject),
  369. valueEntities,
  370. isMultiple
  371. );
  372. } else if (!prevProps && props.defaultValue) {
  373. checkedKeyValues = findKeysForValues(
  374. normalizeValue(props.defaultValue, withObject),
  375. valueEntities,
  376. isMultiple
  377. );
  378. } else if (treeData) {
  379. // If `treeData` changed, we also need check it
  380. if (props.value) {
  381. checkedKeyValues = findKeysForValues(
  382. normalizeValue(props.value, withObject) || [],
  383. valueEntities,
  384. isMultiple
  385. );
  386. } else {
  387. checkedKeyValues = updateKeys(prevState.checkedKeys, keyEntities);
  388. }
  389. }
  390. if (checkedKeyValues) {
  391. const { checkedKeys, halfCheckedKeys } = calcCheckedKeys(checkedKeyValues, keyEntities);
  392. newState.checkedKeys = checkedKeys;
  393. newState.halfCheckedKeys = halfCheckedKeys;
  394. }
  395. }
  396. // update loadedKeys
  397. if (needUpdate('loadedKeys')) {
  398. newState.loadedKeys = new Set(props.loadedKeys);
  399. }
  400. // update disableStrictly
  401. if (treeData && props.disableStrictly) {
  402. newState.disabledKeys = calcDisabledKeys(keyEntities);
  403. }
  404. return newState;
  405. }
  406. get adapter(): TreeAdapter {
  407. const filterAdapter: Pick<TreeAdapter, 'updateInputValue' | 'focusInput'> = {
  408. updateInputValue: value => {
  409. this.setState({ inputValue: value });
  410. },
  411. focusInput: () => {
  412. if (this.inputRef && this.inputRef.current) {
  413. (this.inputRef.current as any).focus();
  414. }
  415. },
  416. };
  417. return {
  418. ...super.adapter,
  419. ...filterAdapter,
  420. updateState: states => {
  421. this.setState({ ...states } as TreeState);
  422. },
  423. notifyExpand: (expandedKeys, { expanded: bool, node }) => {
  424. this.props.onExpand && this.props.onExpand([...expandedKeys], { expanded: bool, node });
  425. if (bool && this.props.loadData) {
  426. this.onNodeLoad(node);
  427. }
  428. },
  429. notifySelect: (selectKey, bool, node) => {
  430. this.props.onSelect && this.props.onSelect(selectKey, bool, node);
  431. },
  432. notifyChange: value => {
  433. this.props.onChange && this.props.onChange(value);
  434. },
  435. notifySearch: input => {
  436. this.props.onSearch && this.props.onSearch(input);
  437. },
  438. notifyRightClick: (e, node) => {
  439. this.props.onContextMenu && this.props.onContextMenu(e, node);
  440. },
  441. notifyDoubleClick: (e, node) => {
  442. this.props.onDoubleClick && this.props.onDoubleClick(e, node);
  443. },
  444. cacheFlattenNodes: bool => {
  445. this.setState({ cachedFlattenNodes: bool ? cloneDeep(this.state.flattenNodes) : undefined });
  446. },
  447. setDragNode: treeNode => {
  448. this.dragNode = treeNode;
  449. },
  450. };
  451. }
  452. search = (value: string) => {
  453. this.foundation.handleInputChange(value);
  454. };
  455. renderInput() {
  456. const {
  457. searchClassName,
  458. searchStyle,
  459. searchRender,
  460. searchPlaceholder,
  461. showClear
  462. } = this.props;
  463. const inputcls = cls(`${prefixcls}-input`);
  464. const { inputValue } = this.state;
  465. const inputProps = {
  466. value: inputValue,
  467. className: inputcls,
  468. onChange: (value: string) => this.search(value),
  469. prefix: <IconSearch />,
  470. showClear,
  471. placeholder: searchPlaceholder,
  472. };
  473. const wrapperCls = cls(`${prefixcls}-search-wrapper`, searchClassName);
  474. return (
  475. <div className={wrapperCls} style={searchStyle}>
  476. <LocaleConsumer componentName="Tree">
  477. {(locale: LocaleObject) => {
  478. inputProps.placeholder = searchPlaceholder || get(locale, 'searchPlaceholder');
  479. if (isFunction(searchRender)) {
  480. return searchRender({ ...inputProps });
  481. }
  482. if (searchRender === false) {
  483. return null;
  484. }
  485. return (
  486. <Input
  487. aria-label='Filter Tree'
  488. ref={this.inputRef as any}
  489. {...inputProps}
  490. />
  491. );
  492. }}
  493. </LocaleConsumer>
  494. </div>
  495. );
  496. }
  497. renderEmpty = () => {
  498. const { emptyContent } = this.props;
  499. if (emptyContent) {
  500. return <TreeNode empty emptyContent={this.props.emptyContent} />;
  501. } else {
  502. return (
  503. <LocaleConsumer componentName="Tree">
  504. {(locale: LocaleObject) => <TreeNode empty emptyContent={get(locale, 'emptyText')} />}
  505. </LocaleConsumer>
  506. );
  507. }
  508. };
  509. onNodeSelect = (e: MouseEvent, treeNode: TreeNodeProps) => {
  510. this.foundation.handleNodeSelect(e, treeNode);
  511. };
  512. onNodeLoad = (data: TreeNodeData) => (
  513. new Promise(resolve => {
  514. // We need to get the latest state of loading/loaded keys
  515. this.setState(({ loadedKeys = new Set([]), loadingKeys = new Set([]) }) => (
  516. this.foundation.handleNodeLoad(loadedKeys, loadingKeys, data, resolve)
  517. ));
  518. })
  519. );
  520. onNodeCheck = (e: MouseEvent, treeNode: TreeNodeProps) => {
  521. this.foundation.handleNodeSelect(e, treeNode);
  522. };
  523. onNodeExpand = (e: MouseEvent, treeNode: TreeNodeProps) => {
  524. this.foundation.handleNodeExpand(e, treeNode);
  525. };
  526. onNodeRightClick = (e: MouseEvent, treeNode: TreeNodeProps) => {
  527. this.foundation.handleNodeRightClick(e, treeNode);
  528. };
  529. onNodeDoubleClick = (e: MouseEvent, treeNode: TreeNodeProps) => {
  530. this.foundation.handleNodeDoubleClick(e, treeNode);
  531. };
  532. onNodeDragStart = (e: React.DragEvent<HTMLDivElement>, treeNode: TreeNodeProps) => {
  533. this.foundation.handleNodeDragStart(e, treeNode);
  534. };
  535. onNodeDragEnter = (e: React.DragEvent<HTMLDivElement>, treeNode: TreeNodeProps) => {
  536. this.foundation.handleNodeDragEnter(e, treeNode, this.dragNode);
  537. };
  538. onNodeDragOver = (e: React.DragEvent<HTMLDivElement>, treeNode: TreeNodeProps) => {
  539. this.foundation.handleNodeDragOver(e, treeNode, this.dragNode);
  540. };
  541. onNodeDragLeave = (e: React.DragEvent<HTMLDivElement>, treeNode: TreeNodeProps) => {
  542. this.foundation.handleNodeDragLeave(e, treeNode);
  543. };
  544. onNodeDragEnd = (e: React.DragEvent<HTMLDivElement>, treeNode: TreeNodeProps) => {
  545. this.foundation.handleNodeDragEnd(e, treeNode);
  546. };
  547. onNodeDrop = (e: React.DragEvent<HTMLDivElement>, treeNode: TreeNodeProps) => {
  548. this.foundation.handleNodeDrop(e, treeNode, this.dragNode);
  549. };
  550. getTreeNodeRequiredProps = () => {
  551. const { expandedKeys, selectedKeys, checkedKeys, halfCheckedKeys, keyEntities, filteredKeys } = this.state;
  552. return {
  553. expandedKeys: expandedKeys || new Set(),
  554. selectedKeys: selectedKeys || [],
  555. checkedKeys: checkedKeys || new Set(),
  556. halfCheckedKeys: halfCheckedKeys || new Set(),
  557. filteredKeys: filteredKeys || new Set(),
  558. keyEntities,
  559. };
  560. };
  561. getTreeNodeKey = (treeNode: TreeNodeData) => {
  562. const { data } = treeNode;
  563. const { key } = data;
  564. return key;
  565. };
  566. renderTreeNode = (treeNode: FlattenNode, ind?: number, style?: React.CSSProperties) => {
  567. const { data } = treeNode;
  568. const { key } = data;
  569. const treeNodeProps = this.foundation.getTreeNodeProps(key);
  570. if (!treeNodeProps) {
  571. return null;
  572. }
  573. return <TreeNode {...treeNodeProps} {...data} key={key} data={data} style={isEmpty(style) ? {} : style} />;
  574. };
  575. itemKey = (index: number, data: KeyEntity) => {
  576. // Find the item at the specified index.
  577. const item = data[index];
  578. // Return a value that uniquely identifies this item.
  579. return item.key;
  580. };
  581. renderNodeList() {
  582. const { flattenNodes, cachedFlattenNodes, motionKeys, motionType } = this.state;
  583. const { virtualize, motion } = this.props;
  584. const { direction } = this.context;
  585. if (isEmpty(flattenNodes)) {
  586. return undefined;
  587. }
  588. if (!virtualize || isEmpty(virtualize)) {
  589. return (
  590. <NodeList
  591. flattenNodes={flattenNodes}
  592. flattenList={cachedFlattenNodes}
  593. motionKeys={motion ? motionKeys : new Set([])}
  594. motionType={motionType}
  595. onMotionEnd={this.onMotionEnd}
  596. renderTreeNode={this.renderTreeNode}
  597. />
  598. );
  599. }
  600. const option = ({ index, style, data }: OptionProps) => (
  601. this.renderTreeNode(data[index], index, style)
  602. );
  603. return (
  604. <AutoSizer defaultHeight={virtualize.height} defaultWidth={virtualize.width}>
  605. {({ height, width }: { width: string | number; height: string | number }) => (
  606. <VirtualList
  607. itemCount={flattenNodes.length}
  608. itemSize={virtualize.itemSize}
  609. height={height}
  610. width={width}
  611. itemKey={this.itemKey}
  612. itemData={flattenNodes as any}
  613. className={`${prefixcls}-virtual-list`}
  614. style={{ direction }}
  615. >
  616. {option}
  617. </VirtualList>
  618. )}
  619. </AutoSizer>
  620. );
  621. }
  622. render() {
  623. const {
  624. keyEntities,
  625. motionKeys,
  626. motionType,
  627. inputValue,
  628. filteredKeys,
  629. dragOverNodeKey,
  630. dropPosition,
  631. } = this.state;
  632. const {
  633. blockNode,
  634. className,
  635. style,
  636. filterTreeNode,
  637. disabled,
  638. icon,
  639. directory,
  640. multiple,
  641. showFilteredOnly,
  642. motion,
  643. expandAction,
  644. loadData,
  645. renderLabel,
  646. draggable,
  647. renderFullLabel,
  648. labelEllipsis,
  649. virtualize,
  650. } = this.props;
  651. const wrapperCls = cls(`${prefixcls}-wrapper`, className);
  652. const listCls = cls(`${prefixcls}-option-list`, {
  653. [`${prefixcls}-option-list-block`]: blockNode,
  654. });
  655. const searchNoRes = Boolean(inputValue) && !filteredKeys.size;
  656. const noData = isEmpty(keyEntities) || (showFilteredOnly && searchNoRes);
  657. const ariaAttr = {
  658. role: noData ? 'none' : 'tree'
  659. };
  660. if (ariaAttr.role === 'tree'){
  661. ariaAttr['aria-multiselectable'] = multiple ? true : false;
  662. }
  663. return (
  664. <TreeContext.Provider
  665. value={{
  666. treeDisabled: disabled,
  667. treeIcon: icon,
  668. motion,
  669. motionKeys,
  670. motionType,
  671. filterTreeNode,
  672. keyEntities,
  673. onNodeClick: this.onNodeClick,
  674. onNodeExpand: this.onNodeExpand,
  675. onNodeSelect: this.onNodeSelect,
  676. onNodeCheck: this.onNodeCheck,
  677. onNodeRightClick: this.onNodeRightClick,
  678. onNodeDoubleClick: this.onNodeDoubleClick,
  679. renderTreeNode: this.renderTreeNode,
  680. onNodeDragStart: this.onNodeDragStart,
  681. onNodeDragEnter: this.onNodeDragEnter,
  682. onNodeDragOver: this.onNodeDragOver,
  683. onNodeDragLeave: this.onNodeDragLeave,
  684. onNodeDragEnd: this.onNodeDragEnd,
  685. onNodeDrop: this.onNodeDrop,
  686. expandAction,
  687. directory,
  688. multiple,
  689. showFilteredOnly,
  690. isSearching: Boolean(inputValue),
  691. loadData,
  692. onNodeLoad: this.onNodeLoad,
  693. renderLabel,
  694. draggable,
  695. renderFullLabel,
  696. dragOverNodeKey,
  697. dropPosition,
  698. labelEllipsis: typeof labelEllipsis === 'undefined' ? virtualize : labelEllipsis,
  699. }}
  700. >
  701. <div aria-label={this.props['aria-label']} className={wrapperCls} style={style}>
  702. {filterTreeNode ? this.renderInput() : null}
  703. <div className={listCls} {...ariaAttr}>
  704. {noData ? this.renderEmpty() : this.renderNodeList()}
  705. </div>
  706. </div>
  707. </TreeContext.Provider>
  708. );
  709. }
  710. }
  711. Tree.TreeNode = TreeNode;
  712. export default Tree;