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Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }\n\nfunction _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; }\n\nfunction _typeof(obj) { \"@babel/helpers - typeof\"; return _typeof = \"function\" == typeof Symbol && \"symbol\" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && \"function\" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }, _typeof(obj); }\n\nfunction _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }\n\nfunction _nonIterableRest() { throw new TypeError(\"Invalid attempt to destructure non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\"); }\n\nfunction _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === \"string\") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === \"Object\" && o.constructor) n = o.constructor.name; if (n === \"Map\" || n === \"Set\") return Array.from(o); if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }\n\nfunction _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }\n\nfunction _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== \"undefined\" && arr[Symbol.iterator] || arr[\"@@iterator\"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_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; }\n\nfunction _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }\n\nimport accepts from 'attr-accept'; // Error codes\n\nexport var FILE_INVALID_TYPE = 'file-invalid-type';\nexport var FILE_TOO_LARGE = 'file-too-large';\nexport var FILE_TOO_SMALL = 'file-too-small';\nexport var TOO_MANY_FILES = 'too-many-files';\nexport var ErrorCode = {\n  FileInvalidType: FILE_INVALID_TYPE,\n  FileTooLarge: FILE_TOO_LARGE,\n  FileTooSmall: FILE_TOO_SMALL,\n  TooManyFiles: TOO_MANY_FILES\n}; // File Errors\n\nexport var getInvalidTypeRejectionErr = function getInvalidTypeRejectionErr(accept) {\n  accept = Array.isArray(accept) && accept.length === 1 ? accept[0] : accept;\n  var messageSuffix = Array.isArray(accept) ? \"one of \".concat(accept.join(', ')) : accept;\n  return {\n    code: FILE_INVALID_TYPE,\n    message: \"File type must be \".concat(messageSuffix)\n  };\n};\nexport var getTooLargeRejectionErr = function getTooLargeRejectionErr(maxSize) {\n  return {\n    code: FILE_TOO_LARGE,\n    message: \"File is larger than \".concat(maxSize, \" \").concat(maxSize === 1 ? 'byte' : 'bytes')\n  };\n};\nexport var getTooSmallRejectionErr = function getTooSmallRejectionErr(minSize) {\n  return {\n    code: FILE_TOO_SMALL,\n    message: \"File is smaller than \".concat(minSize, \" \").concat(minSize === 1 ? 'byte' : 'bytes')\n  };\n};\nexport var TOO_MANY_FILES_REJECTION = {\n  code: TOO_MANY_FILES,\n  message: 'Too many files'\n}; // Firefox versions prior to 53 return a bogus MIME type for every file drag, so dragovers with\n// that MIME type will always be accepted\n\nexport function fileAccepted(file, accept) {\n  var isAcceptable = file.type === 'application/x-moz-file' || accepts(file, accept);\n  return [isAcceptable, isAcceptable ? null : getInvalidTypeRejectionErr(accept)];\n}\nexport function fileMatchSize(file, minSize, maxSize) {\n  if (isDefined(file.size)) {\n    if (isDefined(minSize) && isDefined(maxSize)) {\n      if (file.size > maxSize) return [false, getTooLargeRejectionErr(maxSize)];\n      if (file.size < minSize) return [false, getTooSmallRejectionErr(minSize)];\n    } else if (isDefined(minSize) && file.size < minSize) return [false, getTooSmallRejectionErr(minSize)];else if (isDefined(maxSize) && file.size > maxSize) return [false, getTooLargeRejectionErr(maxSize)];\n  }\n\n  return [true, null];\n}\n\nfunction isDefined(value) {\n  return value !== undefined && value !== null;\n}\n\nexport function allFilesAccepted(_ref) {\n  var files = _ref.files,\n      accept = _ref.accept,\n      minSize = _ref.minSize,\n      maxSize = _ref.maxSize,\n      multiple = _ref.multiple,\n      maxFiles = _ref.maxFiles;\n\n  if (!multiple && files.length > 1 || multiple && maxFiles >= 1 && files.length > maxFiles) {\n    return false;\n  }\n\n  return files.every(function (file) {\n    var _fileAccepted = fileAccepted(file, accept),\n        _fileAccepted2 = _slicedToArray(_fileAccepted, 1),\n        accepted = _fileAccepted2[0];\n\n    var _fileMatchSize = fileMatchSize(file, minSize, maxSize),\n        _fileMatchSize2 = _slicedToArray(_fileMatchSize, 1),\n        sizeMatch = _fileMatchSize2[0];\n\n    return accepted && sizeMatch;\n  });\n} // React's synthetic events has event.isPropagationStopped,\n// but to remain compatibility with other libs (Preact) fall back\n// to check event.cancelBubble\n\nexport function isPropagationStopped(event) {\n  if (typeof event.isPropagationStopped === 'function') {\n    return event.isPropagationStopped();\n  } else if (typeof event.cancelBubble !== 'undefined') {\n    return event.cancelBubble;\n  }\n\n  return false;\n}\nexport function isEvtWithFiles(event) {\n  if (!event.dataTransfer) {\n    return !!event.target && !!event.target.files;\n  } // https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer/types\n  // https://developer.mozilla.org/en-US/docs/Web/API/HTML_Drag_and_Drop_API/Recommended_drag_types#file\n\n\n  return Array.prototype.some.call(event.dataTransfer.types, function (type) {\n    return type === 'Files' || type === 'application/x-moz-file';\n  });\n}\nexport function isKindFile(item) {\n  return _typeof(item) === 'object' && item !== null && item.kind === 'file';\n} // allow the entire document to be a drag target\n\nexport function onDocumentDragOver(event) {\n  event.preventDefault();\n}\n\nfunction isIe(userAgent) {\n  return userAgent.indexOf('MSIE') !== -1 || userAgent.indexOf('Trident/') !== -1;\n}\n\nfunction isEdge(userAgent) {\n  return userAgent.indexOf('Edge/') !== -1;\n}\n\nexport function isIeOrEdge() {\n  var userAgent = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : window.navigator.userAgent;\n  return isIe(userAgent) || isEdge(userAgent);\n}\n/**\n * This is intended to be used to compose event handlers\n * They are executed in order until one of them calls `event.isPropagationStopped()`.\n * Note that the check is done on the first invoke too,\n * meaning that if propagation was stopped before invoking the fns,\n * no handlers will be executed.\n *\n * @param {Function} fns the event hanlder functions\n * @return {Function} the event handler to add to an element\n */\n\nexport function composeEventHandlers() {\n  for (var _len = arguments.length, fns = new Array(_len), _key = 0; _key < _len; _key++) {\n    fns[_key] = arguments[_key];\n  }\n\n  return function (event) {\n    for (var _len2 = arguments.length, args = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {\n      args[_key2 - 1] = arguments[_key2];\n    }\n\n    return fns.some(function (fn) {\n      if (!isPropagationStopped(event) && fn) {\n        fn.apply(void 0, [event].concat(args));\n      }\n\n      return isPropagationStopped(event);\n    });\n  };\n}\n/**\n * canUseFileSystemAccessAPI checks if the [File System Access API](https://developer.mozilla.org/en-US/docs/Web/API/File_System_Access_API)\n * is supported by the browser.\n * @returns {boolean}\n */\n\nexport function canUseFileSystemAccessAPI() {\n  return 'showOpenFilePicker' in window;\n}\n/**\n * filePickerOptionsTypes returns the {types} option for https://developer.mozilla.org/en-US/docs/Web/API/window/showOpenFilePicker\n * based on the accept attr (see https://github.com/react-dropzone/attr-accept)\n * E.g: converts ['image/*', 'text/*'] to {'image/*': [], 'text/*': []}\n * @param {string|string[]} accept\n */\n\nexport function filePickerOptionsTypes(accept) {\n  accept = typeof accept === 'string' ? accept.split(',') : accept;\n  return [{\n    description: 'everything',\n    // TODO: Need to handle filtering more elegantly than this!\n    accept: Array.isArray(accept) // Accept just MIME types as per spec\n    // NOTE: accept can be https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/file#unique_file_type_specifiers\n    ? accept.filter(function (item) {\n      return item === 'audio/*' || item === 'video/*' || item === 'image/*' || item === 'text/*' || /\\w+\\/[-+.\\w]+/g.test(item);\n    }).reduce(function (a, b) {\n      return _objectSpread(_objectSpread({}, a), {}, _defineProperty({}, b, []));\n    }, {}) : {}\n  }];\n}","var _excluded = [\"children\"],\n    _excluded2 = [\"open\"],\n    _excluded3 = [\"refKey\", \"role\", \"onKeyDown\", \"onFocus\", \"onBlur\", \"onClick\", \"onDragEnter\", \"onDragOver\", \"onDragLeave\", \"onDrop\"],\n    _excluded4 = [\"refKey\", \"onChange\", \"onClick\"];\n\nfunction _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }\n\nfunction _nonIterableSpread() { throw new TypeError(\"Invalid attempt to spread non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\"); }\n\nfunction _iterableToArray(iter) { if (typeof Symbol !== \"undefined\" && iter[Symbol.iterator] != null || iter[\"@@iterator\"] != null) return Array.from(iter); }\n\nfunction _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }\n\nfunction _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }\n\nfunction _nonIterableRest() { throw new TypeError(\"Invalid attempt to destructure non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\"); }\n\nfunction _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === \"string\") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === \"Object\" && o.constructor) n = o.constructor.name; if (n === \"Map\" || n === \"Set\") return Array.from(o); if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }\n\nfunction _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }\n\nfunction _iterableToArrayLimit(arr, i) { var _i = arr == null ? null : typeof Symbol !== \"undefined\" && arr[Symbol.iterator] || arr[\"@@iterator\"]; if (_i == null) return; var _arr = []; var _n = true; var _d = false; var _s, _e; try { for (_i = _i.call(arr); !(_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; }\n\nfunction _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }\n\nfunction ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }\n\nfunction _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; }\n\nfunction _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; }\n\nfunction _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; }\n\n/* eslint prefer-template: 0 */\nimport React, { forwardRef, Fragment, useCallback, useEffect, useImperativeHandle, useMemo, useReducer, useRef } from 'react';\nimport PropTypes from 'prop-types';\nimport { fromEvent } from 'file-selector';\nimport { allFilesAccepted, composeEventHandlers, fileAccepted, fileMatchSize, filePickerOptionsTypes, canUseFileSystemAccessAPI, isEvtWithFiles, isIeOrEdge, isPropagationStopped, onDocumentDragOver, TOO_MANY_FILES_REJECTION } from './utils/index';\n/**\n * Convenience wrapper component for the `useDropzone` hook\n *\n * ```jsx\n * <Dropzone>\n *   {({getRootProps, getInputProps}) => (\n *     <div {...getRootProps()}>\n *       <input {...getInputProps()} />\n *       <p>Drag 'n' drop some files here, or click to select files</p>\n *     </div>\n *   )}\n * </Dropzone>\n * ```\n */\n\nvar Dropzone = /*#__PURE__*/forwardRef(function (_ref, ref) {\n  var children = _ref.children,\n      params = _objectWithoutProperties(_ref, _excluded);\n\n  var _useDropzone = useDropzone(params),\n      open = _useDropzone.open,\n      props = _objectWithoutProperties(_useDropzone, _excluded2);\n\n  useImperativeHandle(ref, function () {\n    return {\n      open: open\n    };\n  }, [open]); // TODO: Figure out why react-styleguidist cannot create docs if we don't return a jsx element\n\n  return /*#__PURE__*/React.createElement(Fragment, null, children(_objectSpread(_objectSpread({}, props), {}, {\n    open: open\n  })));\n});\nDropzone.displayName = 'Dropzone'; // Add default props for react-docgen\n\nvar defaultProps = {\n  disabled: false,\n  getFilesFromEvent: fromEvent,\n  maxSize: Infinity,\n  minSize: 0,\n  multiple: true,\n  maxFiles: 0,\n  preventDropOnDocument: true,\n  noClick: false,\n  noKeyboard: false,\n  noDrag: false,\n  noDragEventsBubbling: false,\n  validator: null,\n  useFsAccessApi: false\n};\nDropzone.defaultProps = defaultProps;\nDropzone.propTypes = {\n  /**\n   * Render function that exposes the dropzone state and prop getter fns\n   *\n   * @param {object} params\n   * @param {Function} params.getRootProps Returns the props you should apply to the root drop container you render\n   * @param {Function} params.getInputProps Returns the props you should apply to hidden file input you render\n   * @param {Function} params.open Open the native file selection dialog\n   * @param {boolean} params.isFocused Dropzone area is in focus\n   * @param {boolean} params.isFileDialogActive File dialog is opened\n   * @param {boolean} params.isDragActive Active drag is in progress\n   * @param {boolean} params.isDragAccept Dragged files are accepted\n   * @param {boolean} params.isDragReject Some dragged files are rejected\n   * @param {File[]} params.draggedFiles Files in active drag\n   * @param {File[]} params.acceptedFiles Accepted files\n   * @param {FileRejection[]} params.fileRejections Rejected files and why they were rejected\n   */\n  children: PropTypes.func,\n\n  /**\n   * Set accepted file types.\n   * See https://github.com/okonet/attr-accept for more information.\n   * Keep in mind that mime type determination is not reliable across platforms. CSV files,\n   * for example, are reported as text/plain under macOS but as application/vnd.ms-excel under\n   * Windows. In some cases there might not be a mime type set at all.\n   * See: https://github.com/react-dropzone/react-dropzone/issues/276\n   */\n  accept: PropTypes.oneOfType([PropTypes.string, PropTypes.arrayOf(PropTypes.string)]),\n\n  /**\n   * Allow drag 'n' drop (or selection from the file dialog) of multiple files\n   */\n  multiple: PropTypes.bool,\n\n  /**\n   * If false, allow dropped items to take over the current browser window\n   */\n  preventDropOnDocument: PropTypes.bool,\n\n  /**\n   * If true, disables click to open the native file selection dialog\n   */\n  noClick: PropTypes.bool,\n\n  /**\n   * If true, disables SPACE/ENTER to open the native file selection dialog.\n   * Note that it also stops tracking the focus state.\n   */\n  noKeyboard: PropTypes.bool,\n\n  /**\n   * If true, disables drag 'n' drop\n   */\n  noDrag: PropTypes.bool,\n\n  /**\n   * If true, stops drag event propagation to parents\n   */\n  noDragEventsBubbling: PropTypes.bool,\n\n  /**\n   * Minimum file size (in bytes)\n   */\n  minSize: PropTypes.number,\n\n  /**\n   * Maximum file size (in bytes)\n   */\n  maxSize: PropTypes.number,\n\n  /**\n   * Maximum accepted number of files\n   * The default value is 0 which means there is no limitation to how many files are accepted.\n   */\n  maxFiles: PropTypes.number,\n\n  /**\n   * Enable/disable the dropzone\n   */\n  disabled: PropTypes.bool,\n\n  /**\n   * Use this to provide a custom file aggregator\n   *\n   * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)\n   */\n  getFilesFromEvent: PropTypes.func,\n\n  /**\n   * Cb for when closing the file dialog with no selection\n   */\n  onFileDialogCancel: PropTypes.func,\n\n  /**\n   * Cb for when opening the file dialog\n   */\n  onFileDialogOpen: PropTypes.func,\n\n  /**\n   * Set to true to use the https://developer.mozilla.org/en-US/docs/Web/API/File_System_Access_API\n   * to open the file picker instead of using an `<input type=\"file\">` click event.\n   */\n  useFsAccessApi: PropTypes.bool,\n\n  /**\n   * Cb for when the `dragenter` event occurs.\n   *\n   * @param {DragEvent} event\n   */\n  onDragEnter: PropTypes.func,\n\n  /**\n   * Cb for when the `dragleave` event occurs\n   *\n   * @param {DragEvent} event\n   */\n  onDragLeave: PropTypes.func,\n\n  /**\n   * Cb for when the `dragover` event occurs\n   *\n   * @param {DragEvent} event\n   */\n  onDragOver: PropTypes.func,\n\n  /**\n   * Cb for when the `drop` event occurs.\n   * Note that this callback is invoked after the `getFilesFromEvent` callback is done.\n   *\n   * Files are accepted or rejected based on the `accept`, `multiple`, `minSize` and `maxSize` props.\n   * `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.\n   * If `multiple` is set to false and additional files are dropped,\n   * all files besides the first will be rejected.\n   * Any file which does not have a size in the [`minSize`, `maxSize`] range, will be rejected as well.\n   *\n   * Note that the `onDrop` callback will always be invoked regardless if the dropped files were accepted or rejected.\n   * If you'd like to react to a specific scenario, use the `onDropAccepted`/`onDropRejected` props.\n   *\n   * `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.\n   * For example, with [SuperAgent](https://github.com/visionmedia/superagent) as a http/ajax library:\n   *\n   * ```js\n   * function onDrop(acceptedFiles) {\n   *   const req = request.post('/upload')\n   *   acceptedFiles.forEach(file => {\n   *     req.attach(file.name, file)\n   *   })\n   *   req.end(callback)\n   * }\n   * ```\n   *\n   * @param {File[]} acceptedFiles\n   * @param {FileRejection[]} fileRejections\n   * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)\n   */\n  onDrop: PropTypes.func,\n\n  /**\n   * Cb for when the `drop` event occurs.\n   * Note that if no files are accepted, this callback is not invoked.\n   *\n   * @param {File[]} files\n   * @param {(DragEvent|Event)} event\n   */\n  onDropAccepted: PropTypes.func,\n\n  /**\n   * Cb for when the `drop` event occurs.\n   * Note that if no files are rejected, this callback is not invoked.\n   *\n   * @param {FileRejection[]} fileRejections\n   * @param {(DragEvent|Event)} event\n   */\n  onDropRejected: PropTypes.func,\n\n  /**\n   * Custom validation function\n   * @param {File} file\n   * @returns {FileError|FileError[]}\n   */\n  validator: PropTypes.func\n};\nexport default Dropzone;\n/**\n * A function that is invoked for the `dragenter`,\n * `dragover` and `dragleave` events.\n * It is not invoked if the items are not files (such as link, text, etc.).\n *\n * @callback dragCb\n * @param {DragEvent} event\n */\n\n/**\n * A function that is invoked for the `drop` or input change event.\n * It is not invoked if the items are not files (such as link, text, etc.).\n *\n * @callback dropCb\n * @param {File[]} acceptedFiles List of accepted files\n * @param {FileRejection[]} fileRejections List of rejected files and why they were rejected\n * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)\n */\n\n/**\n * A function that is invoked for the `drop` or input change event.\n * It is not invoked if the items are files (such as link, text, etc.).\n *\n * @callback dropAcceptedCb\n * @param {File[]} files List of accepted files that meet the given criteria\n * (`accept`, `multiple`, `minSize`, `maxSize`)\n * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)\n */\n\n/**\n * A function that is invoked for the `drop` or input change event.\n *\n * @callback dropRejectedCb\n * @param {File[]} files List of rejected files that do not meet the given criteria\n * (`accept`, `multiple`, `minSize`, `maxSize`)\n * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)\n */\n\n/**\n * A function that is used aggregate files,\n * in a asynchronous fashion, from drag or input change events.\n *\n * @callback getFilesFromEvent\n * @param {(DragEvent|Event)} event A drag event or input change event (if files were selected via the file dialog)\n * @returns {(File[]|Promise<File[]>)}\n */\n\n/**\n * An object with the current dropzone state and some helper functions.\n *\n * @typedef {object} DropzoneState\n * @property {Function} getRootProps Returns the props you should apply to the root drop container you render\n * @property {Function} getInputProps Returns the props you should apply to hidden file input you render\n * @property {Function} open Open the native file selection dialog\n * @property {boolean} isFocused Dropzone area is in focus\n * @property {boolean} isFileDialogActive File dialog is opened\n * @property {boolean} isDragActive Active drag is in progress\n * @property {boolean} isDragAccept Dragged files are accepted\n * @property {boolean} isDragReject Some dragged files are rejected\n * @property {File[]} draggedFiles Files in active drag\n * @property {File[]} acceptedFiles Accepted files\n * @property {FileRejection[]} fileRejections Rejected files and why they were rejected\n */\n\nvar initialState = {\n  isFocused: false,\n  isFileDialogActive: false,\n  isDragActive: false,\n  isDragAccept: false,\n  isDragReject: false,\n  draggedFiles: [],\n  acceptedFiles: [],\n  fileRejections: []\n};\n/**\n * A React hook that creates a drag 'n' drop area.\n *\n * ```jsx\n * function MyDropzone(props) {\n *   const {getRootProps, getInputProps} = useDropzone({\n *     onDrop: acceptedFiles => {\n *       // do something with the File objects, e.g. upload to some server\n *     }\n *   });\n *   return (\n *     <div {...getRootProps()}>\n *       <input {...getInputProps()} />\n *       <p>Drag and drop some files here, or click to select files</p>\n *     </div>\n *   )\n * }\n * ```\n *\n * @function useDropzone\n *\n * @param {object} props\n * @param {string|string[]} [props.accept] Set accepted file types.\n * See https://github.com/okonet/attr-accept for more information.\n * Keep in mind that mime type determination is not reliable across platforms. CSV files,\n * for example, are reported as text/plain under macOS but as application/vnd.ms-excel under\n * Windows. In some cases there might not be a mime type set at all.\n * See: https://github.com/react-dropzone/react-dropzone/issues/276\n * @param {boolean} [props.multiple=true] Allow drag 'n' drop (or selection from the file dialog) of multiple files\n * @param {boolean} [props.preventDropOnDocument=true] If false, allow dropped items to take over the current browser window\n * @param {boolean} [props.noClick=false] If true, disables click to open the native file selection dialog\n * @param {boolean} [props.noKeyboard=false] If true, disables SPACE/ENTER to open the native file selection dialog.\n * Note that it also stops tracking the focus state.\n * @param {boolean} [props.noDrag=false] If true, disables drag 'n' drop\n * @param {boolean} [props.noDragEventsBubbling=false] If true, stops drag event propagation to parents\n * @param {number} [props.minSize=0] Minimum file size (in bytes)\n * @param {number} [props.maxSize=Infinity] Maximum file size (in bytes)\n * @param {boolean} [props.disabled=false] Enable/disable the dropzone\n * @param {getFilesFromEvent} [props.getFilesFromEvent] Use this to provide a custom file aggregator\n * @param {Function} [props.onFileDialogCancel] Cb for when closing the file dialog with no selection\n * @param {boolean} [props.useFsAccessApi] Set to true to use the https://developer.mozilla.org/en-US/docs/Web/API/File_System_Access_API\n * to open the file picker instead of using an `<input type=\"file\">` click event.\n * @param {Function} [props.onFileDialogOpen] Cb for when opening the file dialog\n * @param {dragCb} [props.onDragEnter] Cb for when the `dragenter` event occurs.\n * @param {dragCb} [props.onDragLeave] Cb for when the `dragleave` event occurs\n * @param {dragCb} [props.onDragOver] Cb for when the `dragover` event occurs\n * @param {dropCb} [props.onDrop] Cb for when the `drop` event occurs.\n * Note that this callback is invoked after the `getFilesFromEvent` callback is done.\n *\n * Files are accepted or rejected based on the `accept`, `multiple`, `minSize` and `maxSize` props.\n * `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.\n * If `multiple` is set to false and additional files are dropped,\n * all files besides the first will be rejected.\n * Any file which does not have a size in the [`minSize`, `maxSize`] range, will be rejected as well.\n *\n * Note that the `onDrop` callback will always be invoked regardless if the dropped files were accepted or rejected.\n * If you'd like to react to a specific scenario, use the `onDropAccepted`/`onDropRejected` props.\n *\n * `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.\n * For example, with [SuperAgent](https://github.com/visionmedia/superagent) as a http/ajax library:\n *\n * ```js\n * function onDrop(acceptedFiles) {\n *   const req = request.post('/upload')\n *   acceptedFiles.forEach(file => {\n *     req.attach(file.name, file)\n *   })\n *   req.end(callback)\n * }\n * ```\n * @param {dropAcceptedCb} [props.onDropAccepted]\n * @param {dropRejectedCb} [props.onDropRejected]\n *\n * @returns {DropzoneState}\n */\n\nexport function useDropzone() {\n  var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};\n\n  var _defaultProps$options = _objectSpread(_objectSpread({}, defaultProps), options),\n      accept = _defaultProps$options.accept,\n      disabled = _defaultProps$options.disabled,\n      getFilesFromEvent = _defaultProps$options.getFilesFromEvent,\n      maxSize = _defaultProps$options.maxSize,\n      minSize = _defaultProps$options.minSize,\n      multiple = _defaultProps$options.multiple,\n      maxFiles = _defaultProps$options.maxFiles,\n      onDragEnter = _defaultProps$options.onDragEnter,\n      onDragLeave = _defaultProps$options.onDragLeave,\n      onDragOver = _defaultProps$options.onDragOver,\n      onDrop = _defaultProps$options.onDrop,\n      onDropAccepted = _defaultProps$options.onDropAccepted,\n      onDropRejected = _defaultProps$options.onDropRejected,\n      onFileDialogCancel = _defaultProps$options.onFileDialogCancel,\n      onFileDialogOpen = _defaultProps$options.onFileDialogOpen,\n      useFsAccessApi = _defaultProps$options.useFsAccessApi,\n      preventDropOnDocument = _defaultProps$options.preventDropOnDocument,\n      noClick = _defaultProps$options.noClick,\n      noKeyboard = _defaultProps$options.noKeyboard,\n      noDrag = _defaultProps$options.noDrag,\n      noDragEventsBubbling = _defaultProps$options.noDragEventsBubbling,\n      validator = _defaultProps$options.validator;\n\n  var onFileDialogOpenCb = useMemo(function () {\n    return typeof onFileDialogOpen === 'function' ? onFileDialogOpen : noop;\n  }, [onFileDialogOpen]);\n  var onFileDialogCancelCb = useMemo(function () {\n    return typeof onFileDialogCancel === 'function' ? onFileDialogCancel : noop;\n  }, [onFileDialogCancel]);\n  var rootRef = useRef(null);\n  var inputRef = useRef(null);\n\n  var _useReducer = useReducer(reducer, initialState),\n      _useReducer2 = _slicedToArray(_useReducer, 2),\n      state = _useReducer2[0],\n      dispatch = _useReducer2[1];\n\n  var isFocused = state.isFocused,\n      isFileDialogActive = state.isFileDialogActive,\n      draggedFiles = state.draggedFiles; // Update file dialog active state when the window is focused on\n\n  var onWindowFocus = function onWindowFocus() {\n    // Execute the timeout only if the file dialog is opened in the browser\n    if (isFileDialogActive) {\n      setTimeout(function () {\n        if (inputRef.current) {\n          var files = inputRef.current.files;\n\n          if (!files.length) {\n            dispatch({\n              type: 'closeDialog'\n            });\n            onFileDialogCancelCb();\n          }\n        }\n      }, 300);\n    }\n  };\n\n  useEffect(function () {\n    if (useFsAccessApi && canUseFileSystemAccessAPI()) {\n      return function () {};\n    }\n\n    window.addEventListener('focus', onWindowFocus, false);\n    return function () {\n      window.removeEventListener('focus', onWindowFocus, false);\n    };\n  }, [inputRef, isFileDialogActive, onFileDialogCancelCb, useFsAccessApi]);\n  var dragTargetsRef = useRef([]);\n\n  var onDocumentDrop = function onDocumentDrop(event) {\n    if (rootRef.current && rootRef.current.contains(event.target)) {\n      // If we intercepted an event for our instance, let it propagate down to the instance's onDrop handler\n      return;\n    }\n\n    event.preventDefault();\n    dragTargetsRef.current = [];\n  };\n\n  useEffect(function () {\n    if (preventDropOnDocument) {\n      document.addEventListener('dragover', onDocumentDragOver, false);\n      document.addEventListener('drop', onDocumentDrop, false);\n    }\n\n    return function () {\n      if (preventDropOnDocument) {\n        document.removeEventListener('dragover', onDocumentDragOver);\n        document.removeEventListener('drop', onDocumentDrop);\n      }\n    };\n  }, [rootRef, preventDropOnDocument]);\n  var onDragEnterCb = useCallback(function (event) {\n    event.preventDefault(); // Persist here because we need the event later after getFilesFromEvent() is done\n\n    event.persist();\n    stopPropagation(event);\n    dragTargetsRef.current = [].concat(_toConsumableArray(dragTargetsRef.current), [event.target]);\n\n    if (isEvtWithFiles(event)) {\n      Promise.resolve(getFilesFromEvent(event)).then(function (draggedFiles) {\n        if (isPropagationStopped(event) && !noDragEventsBubbling) {\n          return;\n        }\n\n        dispatch({\n          draggedFiles: draggedFiles,\n          isDragActive: true,\n          type: 'setDraggedFiles'\n        });\n\n        if (onDragEnter) {\n          onDragEnter(event);\n        }\n      });\n    }\n  }, [getFilesFromEvent, onDragEnter, noDragEventsBubbling]);\n  var onDragOverCb = useCallback(function (event) {\n    event.preventDefault();\n    event.persist();\n    stopPropagation(event);\n    var hasFiles = isEvtWithFiles(event);\n\n    if (hasFiles && event.dataTransfer) {\n      try {\n        event.dataTransfer.dropEffect = 'copy';\n      } catch (_unused) {}\n      /* eslint-disable-line no-empty */\n\n    }\n\n    if (hasFiles && onDragOver) {\n      onDragOver(event);\n    }\n\n    return false;\n  }, [onDragOver, noDragEventsBubbling]);\n  var onDragLeaveCb = useCallback(function (event) {\n    event.preventDefault();\n    event.persist();\n    stopPropagation(event); // Only deactivate once the dropzone and all children have been left\n\n    var targets = dragTargetsRef.current.filter(function (target) {\n      return rootRef.current && rootRef.current.contains(target);\n    }); // Make sure to remove a target present multiple times only once\n    // (Firefox may fire dragenter/dragleave multiple times on the same element)\n\n    var targetIdx = targets.indexOf(event.target);\n\n    if (targetIdx !== -1) {\n      targets.splice(targetIdx, 1);\n    }\n\n    dragTargetsRef.current = targets;\n\n    if (targets.length > 0) {\n      return;\n    }\n\n    dispatch({\n      isDragActive: false,\n      type: 'setDraggedFiles',\n      draggedFiles: []\n    });\n\n    if (isEvtWithFiles(event) && onDragLeave) {\n      onDragLeave(event);\n    }\n  }, [rootRef, onDragLeave, noDragEventsBubbling]);\n  var setFiles = useCallback(function (files, event) {\n    var acceptedFiles = [];\n    var fileRejections = [];\n    files.forEach(function (file) {\n      var _fileAccepted = fileAccepted(file, accept),\n          _fileAccepted2 = _slicedToArray(_fileAccepted, 2),\n          accepted = _fileAccepted2[0],\n          acceptError = _fileAccepted2[1];\n\n      var _fileMatchSize = fileMatchSize(file, minSize, maxSize),\n          _fileMatchSize2 = _slicedToArray(_fileMatchSize, 2),\n          sizeMatch = _fileMatchSize2[0],\n          sizeError = _fileMatchSize2[1];\n\n      var customErrors = validator ? validator(file) : null;\n\n      if (accepted && sizeMatch && !customErrors) {\n        acceptedFiles.push(file);\n      } else {\n        var errors = [acceptError, sizeError];\n\n        if (customErrors) {\n          errors = errors.concat(customErrors);\n        }\n\n        fileRejections.push({\n          file: file,\n          errors: errors.filter(function (e) {\n            return e;\n          })\n        });\n      }\n    });\n\n    if (!multiple && acceptedFiles.length > 1 || multiple && maxFiles >= 1 && acceptedFiles.length > maxFiles) {\n      // Reject everything and empty accepted files\n      acceptedFiles.forEach(function (file) {\n        fileRejections.push({\n          file: file,\n          errors: [TOO_MANY_FILES_REJECTION]\n        });\n      });\n      acceptedFiles.splice(0);\n    }\n\n    dispatch({\n      acceptedFiles: acceptedFiles,\n      fileRejections: fileRejections,\n      type: 'setFiles'\n    });\n\n    if (onDrop) {\n      onDrop(acceptedFiles, fileRejections, event);\n    }\n\n    if (fileRejections.length > 0 && onDropRejected) {\n      onDropRejected(fileRejections, event);\n    }\n\n    if (acceptedFiles.length > 0 && onDropAccepted) {\n      onDropAccepted(acceptedFiles, event);\n    }\n  }, [dispatch, multiple, accept, minSize, maxSize, maxFiles, onDrop, onDropAccepted, onDropRejected, validator]);\n  var onDropCb = useCallback(function (event) {\n    event.preventDefault(); // Persist here because we need the event later after getFilesFromEvent() is done\n\n    event.persist();\n    stopPropagation(event);\n    dragTargetsRef.current = [];\n\n    if (isEvtWithFiles(event)) {\n      Promise.resolve(getFilesFromEvent(event)).then(function (files) {\n        if (isPropagationStopped(event) && !noDragEventsBubbling) {\n          return;\n        }\n\n        setFiles(files, event);\n      });\n    }\n\n    dispatch({\n      type: 'reset'\n    });\n  }, [getFilesFromEvent, setFiles, noDragEventsBubbling]); // Fn for opening the file dialog programmatically\n\n  var openFileDialog = useCallback(function () {\n    if (useFsAccessApi && canUseFileSystemAccessAPI()) {\n      dispatch({\n        type: 'openDialog'\n      });\n      onFileDialogOpenCb(); // https://developer.mozilla.org/en-US/docs/Web/API/window/showOpenFilePicker\n\n      var opts = {\n        multiple: multiple,\n        types: filePickerOptionsTypes(accept)\n      };\n      window.showOpenFilePicker(opts).then(function (handles) {\n        return getFilesFromEvent(handles);\n      }).then(function (files) {\n        return setFiles(files, null);\n      }).catch(function (e) {\n        return onFileDialogCancelCb(e);\n      }).finally(function () {\n        return dispatch({\n          type: 'closeDialog'\n        });\n      });\n      return;\n    }\n\n    if (inputRef.current) {\n      dispatch({\n        type: 'openDialog'\n      });\n      onFileDialogOpenCb();\n      inputRef.current.value = null;\n      inputRef.current.click();\n    }\n  }, [dispatch, onFileDialogOpenCb, onFileDialogCancelCb, useFsAccessApi, setFiles, accept, multiple]); // Cb to open the file dialog when SPACE/ENTER occurs on the dropzone\n\n  var onKeyDownCb = useCallback(function (event) {\n    // Ignore keyboard events bubbling up the DOM tree\n    if (!rootRef.current || !rootRef.current.isEqualNode(event.target)) {\n      return;\n    }\n\n    if (event.keyCode === 32 || event.keyCode === 13) {\n      event.preventDefault();\n      openFileDialog();\n    }\n  }, [rootRef, inputRef, openFileDialog]); // Update focus state for the dropzone\n\n  var onFocusCb = useCallback(function () {\n    dispatch({\n      type: 'focus'\n    });\n  }, []);\n  var onBlurCb = useCallback(function () {\n    dispatch({\n      type: 'blur'\n    });\n  }, []); // Cb to open the file dialog when click occurs on the dropzone\n\n  var onClickCb = useCallback(function () {\n    if (noClick) {\n      return;\n    } // In IE11/Edge the file-browser dialog is blocking, therefore, use setTimeout()\n    // to ensure React can handle state changes\n    // See: https://github.com/react-dropzone/react-dropzone/issues/450\n\n\n    if (isIeOrEdge()) {\n      setTimeout(openFileDialog, 0);\n    } else {\n      openFileDialog();\n    }\n  }, [inputRef, noClick, openFileDialog]);\n\n  var composeHandler = function composeHandler(fn) {\n    return disabled ? null : fn;\n  };\n\n  var composeKeyboardHandler = function composeKeyboardHandler(fn) {\n    return noKeyboard ? null : composeHandler(fn);\n  };\n\n  var composeDragHandler = function composeDragHandler(fn) {\n    return noDrag ? null : composeHandler(fn);\n  };\n\n  var stopPropagation = function stopPropagation(event) {\n    if (noDragEventsBubbling) {\n      event.stopPropagation();\n    }\n  };\n\n  var getRootProps = useMemo(function () {\n    return function () {\n      var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},\n          _ref2$refKey = _ref2.refKey,\n          refKey = _ref2$refKey === void 0 ? 'ref' : _ref2$refKey,\n          role = _ref2.role,\n          onKeyDown = _ref2.onKeyDown,\n          onFocus = _ref2.onFocus,\n          onBlur = _ref2.onBlur,\n          onClick = _ref2.onClick,\n          onDragEnter = _ref2.onDragEnter,\n          onDragOver = _ref2.onDragOver,\n          onDragLeave = _ref2.onDragLeave,\n          onDrop = _ref2.onDrop,\n          rest = _objectWithoutProperties(_ref2, _excluded3);\n\n      return _objectSpread(_objectSpread(_defineProperty({\n        onKeyDown: composeKeyboardHandler(composeEventHandlers(onKeyDown, onKeyDownCb)),\n        onFocus: composeKeyboardHandler(composeEventHandlers(onFocus, onFocusCb)),\n        onBlur: composeKeyboardHandler(composeEventHandlers(onBlur, onBlurCb)),\n        onClick: composeHandler(composeEventHandlers(onClick, onClickCb)),\n        onDragEnter: composeDragHandler(composeEventHandlers(onDragEnter, onDragEnterCb)),\n        onDragOver: composeDragHandler(composeEventHandlers(onDragOver, onDragOverCb)),\n        onDragLeave: composeDragHandler(composeEventHandlers(onDragLeave, onDragLeaveCb)),\n        onDrop: composeDragHandler(composeEventHandlers(onDrop, onDropCb)),\n        role: typeof role === 'string' && role !== '' ? role : 'button'\n      }, refKey, rootRef), !disabled && !noKeyboard ? {\n        tabIndex: 0\n      } : {}), rest);\n    };\n  }, [rootRef, onKeyDownCb, onFocusCb, onBlurCb, onClickCb, onDragEnterCb, onDragOverCb, onDragLeaveCb, onDropCb, noKeyboard, noDrag, disabled]);\n  var onInputElementClick = useCallback(function (event) {\n    event.stopPropagation();\n  }, []);\n  var getInputProps = useMemo(function () {\n    return function () {\n      var _ref3 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},\n          _ref3$refKey = _ref3.refKey,\n          refKey = _ref3$refKey === void 0 ? 'ref' : _ref3$refKey,\n          onChange = _ref3.onChange,\n          onClick = _ref3.onClick,\n          rest = _objectWithoutProperties(_ref3, _excluded4);\n\n      var inputProps = _defineProperty({\n        accept: accept,\n        multiple: multiple,\n        type: 'file',\n        style: {\n          display: 'none'\n        },\n        onChange: composeHandler(composeEventHandlers(onChange, onDropCb)),\n        onClick: composeHandler(composeEventHandlers(onClick, onInputElementClick)),\n        autoComplete: 'off',\n        tabIndex: -1\n      }, refKey, inputRef);\n\n      return _objectSpread(_objectSpread({}, inputProps), rest);\n    };\n  }, [inputRef, accept, multiple, onDropCb, disabled]);\n  var fileCount = draggedFiles.length;\n  var isDragAccept = fileCount > 0 && allFilesAccepted({\n    files: draggedFiles,\n    accept: accept,\n    minSize: minSize,\n    maxSize: maxSize,\n    multiple: multiple,\n    maxFiles: maxFiles\n  });\n  var isDragReject = fileCount > 0 && !isDragAccept;\n  return _objectSpread(_objectSpread({}, state), {}, {\n    isDragAccept: isDragAccept,\n    isDragReject: isDragReject,\n    isFocused: isFocused && !disabled,\n    getRootProps: getRootProps,\n    getInputProps: getInputProps,\n    rootRef: rootRef,\n    inputRef: inputRef,\n    open: composeHandler(openFileDialog)\n  });\n}\n\nfunction reducer(state, action) {\n  /* istanbul ignore next */\n  switch (action.type) {\n    case 'focus':\n      return _objectSpread(_objectSpread({}, state), {}, {\n        isFocused: true\n      });\n\n    case 'blur':\n      return _objectSpread(_objectSpread({}, state), {}, {\n        isFocused: false\n      });\n\n    case 'openDialog':\n      return _objectSpread(_objectSpread({}, initialState), {}, {\n        isFileDialogActive: true\n      });\n\n    case 'closeDialog':\n      return _objectSpread(_objectSpread({}, state), {}, {\n        isFileDialogActive: false\n      });\n\n    case 'setDraggedFiles':\n      /* eslint no-case-declarations: 0 */\n      var isDragActive = action.isDragActive,\n          draggedFiles = action.draggedFiles;\n      return _objectSpread(_objectSpread({}, state), {}, {\n        draggedFiles: draggedFiles,\n        isDragActive: isDragActive\n      });\n\n    case 'setFiles':\n      return _objectSpread(_objectSpread({}, state), {}, {\n        acceptedFiles: action.acceptedFiles,\n        fileRejections: action.fileRejections\n      });\n\n    case 'reset':\n      return _objectSpread({}, initialState);\n\n    default:\n      return state;\n  }\n}\n\nfunction noop() {}\n\nexport { ErrorCode } from './utils';"],"names":[],"sourceRoot":""}