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  1. function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }
  2. function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }
  3. function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
  4. function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }
  5. function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }
  6. function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
  7. function _iterableToArrayLimit(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
  8. function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
  9. function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }
  10. function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(source, true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(source).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }
  11. function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
  12. function _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }
  13. function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }
  14. /* eslint prefer-template: 0 */
  15. import React, { forwardRef, Fragment, useCallback, useEffect, useImperativeHandle, useMemo, useReducer, useRef } from 'react';
  16. import PropTypes from 'prop-types';
  17. import { fromEvent } from 'file-selector';
  18. import { allFilesAccepted, composeEventHandlers, fileAccepted, fileMatchSize, isEvtWithFiles, isIeOrEdge, isPropagationStopped, onDocumentDragOver } from './utils/index';
  19. /**
  20. * Convenience wrapper component for the `useDropzone` hook
  21. *
  22. * ```jsx
  23. * <Dropzone>
  24. * {({getRootProps, getInputProps}) => (
  25. * <div {...getRootProps()}>
  26. * <input {...getInputProps()} />
  27. * <p>Drag 'n' drop some files here, or click to select files</p>
  28. * </div>
  29. * )}
  30. * </Dropzone>
  31. * ```
  32. */
  33. var Dropzone = forwardRef(function (_ref, ref) {
  34. var children = _ref.children,
  35. params = _objectWithoutProperties(_ref, ["children"]);
  36. var _useDropzone = useDropzone(params),
  37. open = _useDropzone.open,
  38. props = _objectWithoutProperties(_useDropzone, ["open"]);
  39. useImperativeHandle(ref, function () {
  40. return {
  41. open: open
  42. };
  43. }, [open]); // TODO: Figure out why react-styleguidist cannot create docs if we don't return a jsx element
  44. return React.createElement(Fragment, null, children(_objectSpread({}, props, {
  45. open: open
  46. })));
  47. });
  48. Dropzone.displayName = 'Dropzone';
  49. Dropzone.propTypes = {
  50. /**
  51. * Render function that exposes the dropzone state and prop getter fns
  52. *
  53. * @param {object} params
  54. * @param {Function} params.getRootProps Returns the props you should apply to the root drop container you render
  55. * @param {Function} params.getInputProps Returns the props you should apply to hidden file input you render
  56. * @param {Function} params.open Open the native file selection dialog
  57. * @param {boolean} params.isFocused Dropzone area is in focus
  58. * @param {boolean} params.isFileDialogActive File dialog is opened
  59. * @param {boolean} params.isDragActive Active drag is in progress
  60. * @param {boolean} params.isDragAccept Dragged files are accepted
  61. * @param {boolean} params.isDragReject Some dragged files are rejected
  62. * @param {File[]} params.draggedFiles Files in active drag
  63. * @param {File[]} params.acceptedFiles Accepted files
  64. * @param {File[]} params.rejectedFiles Rejected files
  65. */
  66. children: PropTypes.func,
  67. /**
  68. * Set accepted file types.
  69. * See https://github.com/okonet/attr-accept for more information.
  70. * Keep in mind that mime type determination is not reliable across platforms. CSV files,
  71. * for example, are reported as text/plain under macOS but as application/vnd.ms-excel under
  72. * Windows. In some cases there might not be a mime type set at all.
  73. * See: https://github.com/react-dropzone/react-dropzone/issues/276
  74. */
  75. accept: PropTypes.oneOfType([PropTypes.string, PropTypes.arrayOf(PropTypes.string)]),
  76. /**
  77. * Allow drag 'n' drop (or selection from the file dialog) of multiple files
  78. */
  79. multiple: PropTypes.bool,
  80. /**
  81. * If false, allow dropped items to take over the current browser window
  82. */
  83. preventDropOnDocument: PropTypes.bool,
  84. /**
  85. * If true, disables click to open the native file selection dialog
  86. */
  87. noClick: PropTypes.bool,
  88. /**
  89. * If true, disables SPACE/ENTER to open the native file selection dialog.
  90. * Note that it also stops tracking the focus state.
  91. */
  92. noKeyboard: PropTypes.bool,
  93. /**
  94. * If true, disables drag 'n' drop
  95. */
  96. noDrag: PropTypes.bool,
  97. /**
  98. * If true, stops drag event propagation to parents
  99. */
  100. noDragEventsBubbling: PropTypes.bool,
  101. /**
  102. * Minimum file size (in bytes)
  103. */
  104. minSize: PropTypes.number,
  105. /**
  106. * Maximum file size (in bytes)
  107. */
  108. maxSize: PropTypes.number,
  109. /**
  110. * Enable/disable the dropzone
  111. */
  112. disabled: PropTypes.bool,
  113. /**
  114. * Use this to provide a custom file aggregator
  115. *
  116. * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)
  117. */
  118. getFilesFromEvent: PropTypes.func,
  119. /**
  120. * Cb for when closing the file dialog with no selection
  121. */
  122. onFileDialogCancel: PropTypes.func,
  123. /**
  124. * Cb for when the `dragenter` event occurs.
  125. *
  126. * @param {DragEvent} event
  127. */
  128. onDragEnter: PropTypes.func,
  129. /**
  130. * Cb for when the `dragleave` event occurs
  131. *
  132. * @param {DragEvent} event
  133. */
  134. onDragLeave: PropTypes.func,
  135. /**
  136. * Cb for when the `dragover` event occurs
  137. *
  138. * @param {DragEvent} event
  139. */
  140. onDragOver: PropTypes.func,
  141. /**
  142. * Cb for when the `drop` event occurs.
  143. * Note that this callback is invoked after the `getFilesFromEvent` callback is done.
  144. *
  145. * Files are accepted or rejected based on the `accept`, `multiple`, `minSize` and `maxSize` props.
  146. * `accept` must be a valid [MIME type](http://www.iana.org/assignments/media-types/media-types.xhtml) according to [input element specification](https://www.w3.org/wiki/HTML/Elements/input/file) or a valid file extension.
  147. * If `multiple` is set to false and additional files are droppped,
  148. * all files besides the first will be rejected.
  149. * Any file which does not have a size in the [`minSize`, `maxSize`] range, will be rejected as well.
  150. *
  151. * Note that the `onDrop` callback will always be invoked regardless if the dropped files were accepted or rejected.
  152. * If you'd like to react to a specific scenario, use the `onDropAccepted`/`onDropRejected` props.
  153. *
  154. * `onDrop` will provide you with an array of [File](https://developer.mozilla.org/en-US/docs/Web/API/File) objects which you can then process and send to a server.
  155. * For example, with [SuperAgent](https://github.com/visionmedia/superagent) as a http/ajax library:
  156. *
  157. * ```js
  158. * function onDrop(acceptedFiles) {
  159. * const req = request.post('/upload')
  160. * acceptedFiles.forEach(file => {
  161. * req.attach(file.name, file)
  162. * })
  163. * req.end(callback)
  164. * }
  165. * ```
  166. *
  167. * @param {File[]} acceptedFiles
  168. * @param {File[]} rejectedFiles
  169. * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)
  170. */
  171. onDrop: PropTypes.func,
  172. /**
  173. * Cb for when the `drop` event occurs.
  174. * Note that if no files are accepted, this callback is not invoked.
  175. *
  176. * @param {File[]} files
  177. * @param {(DragEvent|Event)} event
  178. */
  179. onDropAccepted: PropTypes.func,
  180. /**
  181. * Cb for when the `drop` event occurs.
  182. * Note that if no files are rejected, this callback is not invoked.
  183. *
  184. * @param {object[]} files
  185. * @param {(DragEvent|Event)} event
  186. */
  187. onDropRejected: PropTypes.func
  188. };
  189. export default Dropzone;
  190. /**
  191. * A function that is invoked for the `dragenter`,
  192. * `dragover` and `dragleave` events.
  193. * It is not invoked if the items are not files (such as link, text, etc.).
  194. *
  195. * @callback dragCb
  196. * @param {DragEvent} event
  197. */
  198. /**
  199. * A function that is invoked for the `drop` or input change event.
  200. * It is not invoked if the items are not files (such as link, text, etc.).
  201. *
  202. * @callback dropCb
  203. * @param {File[]} acceptedFiles List of accepted files
  204. * @param {File[]} rejectedFiles List of rejected files
  205. * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)
  206. */
  207. /**
  208. * A function that is invoked for the `drop` or input change event.
  209. * It is not invoked if the items are files (such as link, text, etc.).
  210. *
  211. * @callback dropAcceptedCb
  212. * @param {File[]} files List of accepted files that meet the given criteria
  213. * (`accept`, `multiple`, `minSize`, `maxSize`)
  214. * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)
  215. */
  216. /**
  217. * A function that is invoked for the `drop` or input change event.
  218. *
  219. * @callback dropRejectedCb
  220. * @param {File[]} files List of rejected files that do not meet the given criteria
  221. * (`accept`, `multiple`, `minSize`, `maxSize`)
  222. * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)
  223. */
  224. /**
  225. * A function that is used aggregate files,
  226. * in a asynchronous fashion, from drag or input change events.
  227. *
  228. * @callback getFilesFromEvent
  229. * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)
  230. * @returns {(File[]|Promise<File[]>)}
  231. */
  232. /**
  233. * An object with the current dropzone state and some helper functions.
  234. *
  235. * @typedef {object} DropzoneState
  236. * @property {Function} getRootProps Returns the props you should apply to the root drop container you render
  237. * @property {Function} getInputProps Returns the props you should apply to hidden file input you render
  238. * @property {Function} open Open the native file selection dialog
  239. * @property {boolean} isFocused Dropzone area is in focus
  240. * @property {boolean} isFileDialogActive File dialog is opened
  241. * @property {boolean} isDragActive Active drag is in progress
  242. * @property {boolean} isDragAccept Dragged files are accepted
  243. * @property {boolean} isDragReject Some dragged files are rejected
  244. * @property {File[]} draggedFiles Files in active drag
  245. * @property {File[]} acceptedFiles Accepted files
  246. * @property {File[]} rejectedFiles Rejected files
  247. */
  248. var initialState = {
  249. isFocused: false,
  250. isFileDialogActive: false,
  251. isDragActive: false,
  252. isDragAccept: false,
  253. isDragReject: false,
  254. draggedFiles: [],
  255. acceptedFiles: [],
  256. rejectedFiles: []
  257. };
  258. /**
  259. * A React hook that creates a drag 'n' drop area.
  260. *
  261. * ```jsx
  262. * function MyDropzone(props) {
  263. * const {getRootProps, getInputProps} = useDropzone({
  264. * onDrop: acceptedFiles => {
  265. * // do something with the File objects, e.g. upload to some server
  266. * }
  267. * });
  268. * return (
  269. * <div {...getRootProps()}>
  270. * <input {...getInputProps()} />
  271. * <p>Drag and drop some files here, or click to select files</p>
  272. * </div>
  273. * )
  274. * }
  275. * ```
  276. *
  277. * @function useDropzone
  278. *
  279. * @param {object} props
  280. * @param {string|string[]} [props.accept] Set accepted file types.
  281. * See https://github.com/okonet/attr-accept for more information.
  282. * Keep in mind that mime type determination is not reliable across platforms. CSV files,
  283. * for example, are reported as text/plain under macOS but as application/vnd.ms-excel under
  284. * Windows. In some cases there might not be a mime type set at all.
  285. * See: https://github.com/react-dropzone/react-dropzone/issues/276
  286. * @param {boolean} [props.multiple=true] Allow drag 'n' drop (or selection from the file dialog) of multiple files
  287. * @param {boolean} [props.preventDropOnDocument=true] If false, allow dropped items to take over the current browser window
  288. * @param {boolean} [props.noClick=false] If true, disables click to open the native file selection dialog
  289. * @param {boolean} [props.noKeyboard=false] If true, disables SPACE/ENTER to open the native file selection dialog.
  290. * Note that it also stops tracking the focus state.
  291. * @param {boolean} [props.noDrag=false] If true, disables drag 'n' drop
  292. * @param {boolean} [props.noDragEventsBubbling=false] If true, stops drag event propagation to parents
  293. * @param {number} [props.minSize=0] Minimum file size (in bytes)
  294. * @param {number} [props.maxSize=Infinity] Maximum file size (in bytes)
  295. * @param {boolean} [props.disabled=false] Enable/disable the dropzone
  296. * @param {getFilesFromEvent} [props.getFilesFromEvent] Use this to provide a custom file aggregator
  297. * @param {Function} [props.onFileDialogCancel] Cb for when closing the file dialog with no selection
  298. * @param {dragCb} [props.onDragEnter] Cb for when the `dragenter` event occurs.
  299. * @param {dragCb} [props.onDragLeave] Cb for when the `dragleave` event occurs
  300. * @param {dragCb} [props.onDragOver] Cb for when the `dragover` event occurs
  301. * @param {dropCb} [props.onDrop] Cb for when the `drop` event occurs.
  302. * Note that this callback is invoked after the `getFilesFromEvent` callback is done.
  303. *
  304. * Files are accepted or rejected based on the `accept`, `multiple`, `minSize` and `maxSize` props.
  305. * `accept` must be a valid [MIME type](http://www.iana.org/assignments/media-types/media-types.xhtml) according to [input element specification](https://www.w3.org/wiki/HTML/Elements/input/file) or a valid file extension.
  306. * If `multiple` is set to false and additional files are droppped,
  307. * all files besides the first will be rejected.
  308. * Any file which does not have a size in the [`minSize`, `maxSize`] range, will be rejected as well.
  309. *
  310. * Note that the `onDrop` callback will always be invoked regardless if the dropped files were accepted or rejected.
  311. * If you'd like to react to a specific scenario, use the `onDropAccepted`/`onDropRejected` props.
  312. *
  313. * `onDrop` will provide you with an array of [File](https://developer.mozilla.org/en-US/docs/Web/API/File) objects which you can then process and send to a server.
  314. * For example, with [SuperAgent](https://github.com/visionmedia/superagent) as a http/ajax library:
  315. *
  316. * ```js
  317. * function onDrop(acceptedFiles) {
  318. * const req = request.post('/upload')
  319. * acceptedFiles.forEach(file => {
  320. * req.attach(file.name, file)
  321. * })
  322. * req.end(callback)
  323. * }
  324. * ```
  325. * @param {dropAcceptedCb} [props.onDropAccepted]
  326. * @param {dropRejectedCb} [props.onDropRejected]
  327. *
  328. * @returns {DropzoneState}
  329. */
  330. export function useDropzone() {
  331. var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
  332. accept = _ref2.accept,
  333. _ref2$disabled = _ref2.disabled,
  334. disabled = _ref2$disabled === void 0 ? false : _ref2$disabled,
  335. _ref2$getFilesFromEve = _ref2.getFilesFromEvent,
  336. getFilesFromEvent = _ref2$getFilesFromEve === void 0 ? fromEvent : _ref2$getFilesFromEve,
  337. _ref2$maxSize = _ref2.maxSize,
  338. maxSize = _ref2$maxSize === void 0 ? Infinity : _ref2$maxSize,
  339. _ref2$minSize = _ref2.minSize,
  340. minSize = _ref2$minSize === void 0 ? 0 : _ref2$minSize,
  341. _ref2$multiple = _ref2.multiple,
  342. multiple = _ref2$multiple === void 0 ? true : _ref2$multiple,
  343. onDragEnter = _ref2.onDragEnter,
  344. onDragLeave = _ref2.onDragLeave,
  345. onDragOver = _ref2.onDragOver,
  346. onDrop = _ref2.onDrop,
  347. onDropAccepted = _ref2.onDropAccepted,
  348. onDropRejected = _ref2.onDropRejected,
  349. onFileDialogCancel = _ref2.onFileDialogCancel,
  350. _ref2$preventDropOnDo = _ref2.preventDropOnDocument,
  351. preventDropOnDocument = _ref2$preventDropOnDo === void 0 ? true : _ref2$preventDropOnDo,
  352. _ref2$noClick = _ref2.noClick,
  353. noClick = _ref2$noClick === void 0 ? false : _ref2$noClick,
  354. _ref2$noKeyboard = _ref2.noKeyboard,
  355. noKeyboard = _ref2$noKeyboard === void 0 ? false : _ref2$noKeyboard,
  356. _ref2$noDrag = _ref2.noDrag,
  357. noDrag = _ref2$noDrag === void 0 ? false : _ref2$noDrag,
  358. _ref2$noDragEventsBub = _ref2.noDragEventsBubbling,
  359. noDragEventsBubbling = _ref2$noDragEventsBub === void 0 ? false : _ref2$noDragEventsBub;
  360. var rootRef = useRef(null);
  361. var inputRef = useRef(null);
  362. var _useReducer = useReducer(reducer, initialState),
  363. _useReducer2 = _slicedToArray(_useReducer, 2),
  364. state = _useReducer2[0],
  365. dispatch = _useReducer2[1];
  366. var isFocused = state.isFocused,
  367. isFileDialogActive = state.isFileDialogActive,
  368. draggedFiles = state.draggedFiles; // Fn for opening the file dialog programmatically
  369. var openFileDialog = useCallback(function () {
  370. if (inputRef.current) {
  371. dispatch({
  372. type: 'openDialog'
  373. });
  374. inputRef.current.value = null;
  375. inputRef.current.click();
  376. }
  377. }, [dispatch]); // Update file dialog active state when the window is focused on
  378. var onWindowFocus = function onWindowFocus() {
  379. // Execute the timeout only if the file dialog is opened in the browser
  380. if (isFileDialogActive) {
  381. setTimeout(function () {
  382. if (inputRef.current) {
  383. var files = inputRef.current.files;
  384. if (!files.length) {
  385. dispatch({
  386. type: 'closeDialog'
  387. });
  388. if (typeof onFileDialogCancel === 'function') {
  389. onFileDialogCancel();
  390. }
  391. }
  392. }
  393. }, 300);
  394. }
  395. };
  396. useEffect(function () {
  397. window.addEventListener('focus', onWindowFocus, false);
  398. return function () {
  399. window.removeEventListener('focus', onWindowFocus, false);
  400. };
  401. }, [inputRef, isFileDialogActive, onFileDialogCancel]); // Cb to open the file dialog when SPACE/ENTER occurs on the dropzone
  402. var onKeyDownCb = useCallback(function (event) {
  403. // Ignore keyboard events bubbling up the DOM tree
  404. if (!rootRef.current || !rootRef.current.isEqualNode(event.target)) {
  405. return;
  406. }
  407. if (event.keyCode === 32 || event.keyCode === 13) {
  408. event.preventDefault();
  409. openFileDialog();
  410. }
  411. }, [rootRef, inputRef]); // Update focus state for the dropzone
  412. var onFocusCb = useCallback(function () {
  413. dispatch({
  414. type: 'focus'
  415. });
  416. }, []);
  417. var onBlurCb = useCallback(function () {
  418. dispatch({
  419. type: 'blur'
  420. });
  421. }, []); // Cb to open the file dialog when click occurs on the dropzone
  422. var onClickCb = useCallback(function () {
  423. if (noClick) {
  424. return;
  425. } // In IE11/Edge the file-browser dialog is blocking, therefore, use setTimeout()
  426. // to ensure React can handle state changes
  427. // See: https://github.com/react-dropzone/react-dropzone/issues/450
  428. if (isIeOrEdge()) {
  429. setTimeout(openFileDialog, 0);
  430. } else {
  431. openFileDialog();
  432. }
  433. }, [inputRef, noClick]);
  434. var dragTargetsRef = useRef([]);
  435. var onDocumentDrop = function onDocumentDrop(event) {
  436. if (rootRef.current && rootRef.current.contains(event.target)) {
  437. // If we intercepted an event for our instance, let it propagate down to the instance's onDrop handler
  438. return;
  439. }
  440. event.preventDefault();
  441. dragTargetsRef.current = [];
  442. };
  443. useEffect(function () {
  444. if (preventDropOnDocument) {
  445. document.addEventListener('dragover', onDocumentDragOver, false);
  446. document.addEventListener('drop', onDocumentDrop, false);
  447. }
  448. return function () {
  449. if (preventDropOnDocument) {
  450. document.removeEventListener('dragover', onDocumentDragOver);
  451. document.removeEventListener('drop', onDocumentDrop);
  452. }
  453. };
  454. }, [rootRef, preventDropOnDocument]);
  455. var onDragEnterCb = useCallback(function (event) {
  456. event.preventDefault(); // Persist here because we need the event later after getFilesFromEvent() is done
  457. event.persist();
  458. stopPropagation(event); // Count the dropzone and any children that are entered.
  459. if (dragTargetsRef.current.indexOf(event.target) === -1) {
  460. dragTargetsRef.current = [].concat(_toConsumableArray(dragTargetsRef.current), [event.target]);
  461. }
  462. if (isEvtWithFiles(event)) {
  463. Promise.resolve(getFilesFromEvent(event)).then(function (draggedFiles) {
  464. if (isPropagationStopped(event) && !noDragEventsBubbling) {
  465. return;
  466. }
  467. dispatch({
  468. draggedFiles: draggedFiles,
  469. isDragActive: true,
  470. type: 'setDraggedFiles'
  471. });
  472. if (onDragEnter) {
  473. onDragEnter(event);
  474. }
  475. });
  476. }
  477. }, [getFilesFromEvent, onDragEnter, noDragEventsBubbling]);
  478. var onDragOverCb = useCallback(function (event) {
  479. event.preventDefault();
  480. event.persist();
  481. stopPropagation(event);
  482. if (event.dataTransfer) {
  483. try {
  484. event.dataTransfer.dropEffect = 'copy';
  485. } catch (_unused) {}
  486. /* eslint-disable-line no-empty */
  487. }
  488. if (isEvtWithFiles(event) && onDragOver) {
  489. onDragOver(event);
  490. }
  491. return false;
  492. }, [onDragOver, noDragEventsBubbling]);
  493. var onDragLeaveCb = useCallback(function (event) {
  494. event.preventDefault();
  495. event.persist();
  496. stopPropagation(event); // Only deactivate once the dropzone and all children have been left
  497. var targets = dragTargetsRef.current.filter(function (target) {
  498. return target !== event.target && rootRef.current && rootRef.current.contains(target);
  499. });
  500. dragTargetsRef.current = targets;
  501. if (targets.length > 0) {
  502. return;
  503. }
  504. dispatch({
  505. isDragActive: false,
  506. type: 'setDraggedFiles',
  507. draggedFiles: []
  508. });
  509. if (isEvtWithFiles(event) && onDragLeave) {
  510. onDragLeave(event);
  511. }
  512. }, [rootRef, onDragLeave, noDragEventsBubbling]);
  513. var onDropCb = useCallback(function (event) {
  514. event.preventDefault(); // Persist here because we need the event later after getFilesFromEvent() is done
  515. event.persist();
  516. stopPropagation(event);
  517. dragTargetsRef.current = [];
  518. if (isEvtWithFiles(event)) {
  519. Promise.resolve(getFilesFromEvent(event)).then(function (files) {
  520. if (isPropagationStopped(event) && !noDragEventsBubbling) {
  521. return;
  522. }
  523. var acceptedFiles = [];
  524. var rejectedFiles = [];
  525. files.forEach(function (file) {
  526. if (fileAccepted(file, accept) && fileMatchSize(file, minSize, maxSize)) {
  527. acceptedFiles.push(file);
  528. } else {
  529. rejectedFiles.push(file);
  530. }
  531. });
  532. if (!multiple && acceptedFiles.length > 1) {
  533. rejectedFiles.push.apply(rejectedFiles, _toConsumableArray(acceptedFiles.splice(0))); // Reject everything and empty accepted files
  534. }
  535. dispatch({
  536. acceptedFiles: acceptedFiles,
  537. rejectedFiles: rejectedFiles,
  538. type: 'setFiles'
  539. });
  540. if (onDrop) {
  541. onDrop(acceptedFiles, rejectedFiles, event);
  542. }
  543. if (rejectedFiles.length > 0 && onDropRejected) {
  544. onDropRejected(rejectedFiles, event);
  545. }
  546. if (acceptedFiles.length > 0 && onDropAccepted) {
  547. onDropAccepted(acceptedFiles, event);
  548. }
  549. });
  550. }
  551. dispatch({
  552. type: 'reset'
  553. });
  554. }, [multiple, accept, minSize, maxSize, getFilesFromEvent, onDrop, onDropAccepted, onDropRejected, noDragEventsBubbling]);
  555. var composeHandler = function composeHandler(fn) {
  556. return disabled ? null : fn;
  557. };
  558. var composeKeyboardHandler = function composeKeyboardHandler(fn) {
  559. return noKeyboard ? null : composeHandler(fn);
  560. };
  561. var composeDragHandler = function composeDragHandler(fn) {
  562. return noDrag ? null : composeHandler(fn);
  563. };
  564. var stopPropagation = function stopPropagation(event) {
  565. if (noDragEventsBubbling) {
  566. event.stopPropagation();
  567. }
  568. };
  569. var getRootProps = useMemo(function () {
  570. return function () {
  571. var _ref3 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
  572. _ref3$refKey = _ref3.refKey,
  573. refKey = _ref3$refKey === void 0 ? 'ref' : _ref3$refKey,
  574. onKeyDown = _ref3.onKeyDown,
  575. onFocus = _ref3.onFocus,
  576. onBlur = _ref3.onBlur,
  577. onClick = _ref3.onClick,
  578. onDragEnter = _ref3.onDragEnter,
  579. onDragOver = _ref3.onDragOver,
  580. onDragLeave = _ref3.onDragLeave,
  581. onDrop = _ref3.onDrop,
  582. rest = _objectWithoutProperties(_ref3, ["refKey", "onKeyDown", "onFocus", "onBlur", "onClick", "onDragEnter", "onDragOver", "onDragLeave", "onDrop"]);
  583. return _objectSpread(_defineProperty({
  584. onKeyDown: composeKeyboardHandler(composeEventHandlers(onKeyDown, onKeyDownCb)),
  585. onFocus: composeKeyboardHandler(composeEventHandlers(onFocus, onFocusCb)),
  586. onBlur: composeKeyboardHandler(composeEventHandlers(onBlur, onBlurCb)),
  587. onClick: composeHandler(composeEventHandlers(onClick, onClickCb)),
  588. onDragEnter: composeDragHandler(composeEventHandlers(onDragEnter, onDragEnterCb)),
  589. onDragOver: composeDragHandler(composeEventHandlers(onDragOver, onDragOverCb)),
  590. onDragLeave: composeDragHandler(composeEventHandlers(onDragLeave, onDragLeaveCb)),
  591. onDrop: composeDragHandler(composeEventHandlers(onDrop, onDropCb))
  592. }, refKey, rootRef), !disabled && !noKeyboard ? {
  593. tabIndex: 0
  594. } : {}, {}, rest);
  595. };
  596. }, [rootRef, onKeyDownCb, onFocusCb, onBlurCb, onClickCb, onDragEnterCb, onDragOverCb, onDragLeaveCb, onDropCb, noKeyboard, noDrag, disabled]);
  597. var onInputElementClick = useCallback(function (event) {
  598. event.stopPropagation();
  599. }, []);
  600. var getInputProps = useMemo(function () {
  601. return function () {
  602. var _ref4 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
  603. _ref4$refKey = _ref4.refKey,
  604. refKey = _ref4$refKey === void 0 ? 'ref' : _ref4$refKey,
  605. onChange = _ref4.onChange,
  606. onClick = _ref4.onClick,
  607. rest = _objectWithoutProperties(_ref4, ["refKey", "onChange", "onClick"]);
  608. var inputProps = _defineProperty({
  609. accept: accept,
  610. multiple: multiple,
  611. type: 'file',
  612. style: {
  613. display: 'none'
  614. },
  615. onChange: composeHandler(composeEventHandlers(onChange, onDropCb)),
  616. onClick: composeHandler(composeEventHandlers(onClick, onInputElementClick)),
  617. autoComplete: 'off',
  618. tabIndex: -1
  619. }, refKey, inputRef);
  620. return _objectSpread({}, inputProps, {}, rest);
  621. };
  622. }, [inputRef, accept, multiple, onDropCb, disabled]);
  623. var fileCount = draggedFiles.length;
  624. var isDragAccept = fileCount > 0 && allFilesAccepted({
  625. files: draggedFiles,
  626. accept: accept,
  627. minSize: minSize,
  628. maxSize: maxSize,
  629. multiple: multiple
  630. });
  631. var isDragReject = fileCount > 0 && !isDragAccept;
  632. return _objectSpread({}, state, {
  633. isDragAccept: isDragAccept,
  634. isDragReject: isDragReject,
  635. isFocused: isFocused && !disabled,
  636. getRootProps: getRootProps,
  637. getInputProps: getInputProps,
  638. rootRef: rootRef,
  639. inputRef: inputRef,
  640. open: composeHandler(openFileDialog)
  641. });
  642. }
  643. function reducer(state, action) {
  644. /* istanbul ignore next */
  645. switch (action.type) {
  646. case 'focus':
  647. return _objectSpread({}, state, {
  648. isFocused: true
  649. });
  650. case 'blur':
  651. return _objectSpread({}, state, {
  652. isFocused: false
  653. });
  654. case 'openDialog':
  655. return _objectSpread({}, state, {
  656. isFileDialogActive: true
  657. });
  658. case 'closeDialog':
  659. return _objectSpread({}, state, {
  660. isFileDialogActive: false
  661. });
  662. case 'setDraggedFiles':
  663. /* eslint no-case-declarations: 0 */
  664. var isDragActive = action.isDragActive,
  665. draggedFiles = action.draggedFiles;
  666. return _objectSpread({}, state, {
  667. draggedFiles: draggedFiles,
  668. isDragActive: isDragActive
  669. });
  670. case 'setFiles':
  671. return _objectSpread({}, state, {
  672. acceptedFiles: action.acceptedFiles,
  673. rejectedFiles: action.rejectedFiles
  674. });
  675. case 'reset':
  676. return _objectSpread({}, state, {
  677. isFileDialogActive: false,
  678. isDragActive: false,
  679. draggedFiles: [],
  680. acceptedFiles: [],
  681. rejectedFiles: []
  682. });
  683. default:
  684. return state;
  685. }
  686. }