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MIT License
Copyright (c) 2020 Roland Groza
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# file-selector
> A small package for converting a [DragEvent](https://developer.mozilla.org/en-US/docs/Web/API/DragEvent) or [file input](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/file) to a list of File objects.
[![npm](https://img.shields.io/npm/v/file-selector.svg?style=flat-square)](https://www.npmjs.com/package/file-selector)
![Tests](https://img.shields.io/github/actions/workflow/status/react-dropzone/file-selector/test.yml?branch=master&style=flat-square&label=tests)
[![codecov](https://img.shields.io/coveralls/github/react-dropzone/file-selector/master?style=flat-square)](https://coveralls.io/github/react-dropzone/file-selector?branch=master)
[![Open Collective Backers](https://img.shields.io/opencollective/backers/react-dropzone.svg?style=flat-square)](#backers)
[![Open Collective Sponsors](https://img.shields.io/opencollective/sponsors/react-dropzone.svg?style=flat-square)](#sponsors)
[![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-2.1-4baaaa.svg?style=flat-square)](https://github.com/react-dropzone/.github/blob/main/CODE_OF_CONDUCT.md)
# Table of Contents
* [Installation](#installation)
* [Usage](#usage)
* [Browser Support](#browser-support)
* [Contribute](#contribute)
* [Credits](#credits)
* [Support](#support)
* [License](#license)
## Installation
You can install this package from [NPM](https://www.npmjs.com):
```bash
npm add file-selector
```
### CDN
For CDN, you can use [unpkg](https://unpkg.com):
[https://unpkg.com/file-selector/dist/bundles/file-selector.umd.min.js](https://unpkg.com/file-selector/dist/bundles/file-selector.umd.min.js)
The global namespace for file-selector is `fileSelector`:
```js
const {fromEvent} = fileSelector;
document.addEventListener('drop', async evt => {
const files = await fromEvent(evt);
console.log(files);
});
```
## Usage
### ES6
Convert a [DragEvent](https://developer.mozilla.org/en-US/docs/Web/API/DragEvent) to File objects:
```ts
import {fromEvent} from 'file-selector';
document.addEventListener('drop', async evt => {
const files = await fromEvent(evt);
console.log(files);
});
```
Convert a [change event](https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/change_event) for an input type file to File objects:
```ts
import {fromEvent} from 'file-selector';
const input = document.getElementById('myInput');
input.addEventListener('change', async evt => {
const files = await fromEvent(evt);
console.log(files);
});
```
Convert [FileSystemFileHandle](https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileHandle) items to File objects:
```ts
import {fromEvent} from 'file-selector';
// Open file picker
const handles = await window.showOpenFilePicker({multiple: true});
// Get the files
const files = await fromEvent(handles);
console.log(files);
```
**NOTE** The above is experimental and subject to change.
### CommonJS
Convert a `DragEvent` to File objects:
```ts
const {fromEvent} = require('file-selector');
document.addEventListener('drop', async evt => {
const files = await fromEvent(evt);
console.log(files);
});
```
## Browser Support
Most browser support basic File selection with drag 'n' drop or file input:
* [File API](https://developer.mozilla.org/en-US/docs/Web/API/File#Browser_compatibility)
* [Drag Event](https://developer.mozilla.org/en-US/docs/Web/API/DragEvent#Browser_compatibility)
* [DataTransfer](https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer#Browser_compatibility)
* [`<input type="file">`](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/file#Browser_compatibility)
For folder drop we use the [FileSystem API](https://developer.mozilla.org/en-US/docs/Web/API/FileSystem) which has very limited support:
* [DataTransferItem.getAsFile()](https://developer.mozilla.org/en-US/docs/Web/API/DataTransferItem/getAsFile#Browser_compatibility)
* [DataTransferItem.webkitGetAsEntry()](https://developer.mozilla.org/en-US/docs/Web/API/DataTransferItem/webkitGetAsEntry#Browser_compatibility)
* [FileSystemEntry](https://developer.mozilla.org/en-US/docs/Web/API/FileSystemEntry#Browser_compatibility)
* [FileSystemFileEntry.file()](https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileEntry/file#Browser_compatibility)
* [FileSystemDirectoryEntry.createReader()](https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryEntry/createReader#Browser_compatibility)
* [FileSystemDirectoryReader.readEntries()](https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryReader/readEntries#Browser_compatibility)
## Contribute
Checkout the organization [CONTRIBUTING.md](https://github.com/react-dropzone/.github/blob/main/CONTRIBUTING.md).
## Credits
* [html5-file-selector](https://github.com/quarklemotion/html5-file-selector)
## Support
### Backers
Support us with a monthly donation and help us continue our activities. [[Become a backer](https://opencollective.com/react-dropzone#backer)]
<a href="https://opencollective.com/react-dropzone/backer/0/website" target="_blank"><img src="https://opencollective.com/react-dropzone/backer/0/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/backer/1/website" target="_blank"><img src="https://opencollective.com/react-dropzone/backer/1/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/backer/2/website" target="_blank"><img src="https://opencollective.com/react-dropzone/backer/2/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/backer/3/website" target="_blank"><img src="https://opencollective.com/react-dropzone/backer/3/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/backer/4/website" target="_blank"><img src="https://opencollective.com/react-dropzone/backer/4/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/backer/5/website" target="_blank"><img src="https://opencollective.com/react-dropzone/backer/5/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/backer/6/website" target="_blank"><img src="https://opencollective.com/react-dropzone/backer/6/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/backer/7/website" target="_blank"><img src="https://opencollective.com/react-dropzone/backer/7/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/backer/8/website" target="_blank"><img src="https://opencollective.com/react-dropzone/backer/8/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/backer/9/website" target="_blank"><img src="https://opencollective.com/react-dropzone/backer/9/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/backer/10/website" target="_blank"><img src="https://opencollective.com/react-dropzone/backer/10/avatar.svg"></a>
### Sponsors
Become a sponsor and get your logo on our README on Github with a link to your site. [[Become a sponsor](https://opencollective.com/react-dropzone#sponsor)]
<a href="https://opencollective.com/react-dropzone/sponsor/0/website" target="_blank"><img src="https://opencollective.com/react-dropzone/sponsor/0/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/sponsor/1/website" target="_blank"><img src="https://opencollective.com/react-dropzone/sponsor/1/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/sponsor/2/website" target="_blank"><img src="https://opencollective.com/react-dropzone/sponsor/2/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/sponsor/3/website" target="_blank"><img src="https://opencollective.com/react-dropzone/sponsor/3/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/sponsor/4/website" target="_blank"><img src="https://opencollective.com/react-dropzone/sponsor/4/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/sponsor/5/website" target="_blank"><img src="https://opencollective.com/react-dropzone/sponsor/5/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/sponsor/6/website" target="_blank"><img src="https://opencollective.com/react-dropzone/sponsor/6/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/sponsor/7/website" target="_blank"><img src="https://opencollective.com/react-dropzone/sponsor/7/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/sponsor/8/website" target="_blank"><img src="https://opencollective.com/react-dropzone/sponsor/8/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/sponsor/9/website" target="_blank"><img src="https://opencollective.com/react-dropzone/sponsor/9/avatar.svg"></a>
<a href="https://opencollective.com/react-dropzone/sponsor/10/website" target="_blank"><img src="https://opencollective.com/react-dropzone/sponsor/10/avatar.svg"></a>
## License
MIT

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import { __awaiter } from "tslib";
import { toFileWithPath } from './file';
const FILES_TO_IGNORE = [
// Thumbnail cache files for macOS and Windows
'.DS_Store', // macOs
'Thumbs.db' // Windows
];
/**
* Convert a DragEvent's DataTrasfer object to a list of File objects
* NOTE: If some of the items are folders,
* everything will be flattened and placed in the same list but the paths will be kept as a {path} property.
*
* EXPERIMENTAL: A list of https://developer.mozilla.org/en-US/docs/Web/API/FileSystemHandle objects can also be passed as an arg
* and a list of File objects will be returned.
*
* @param evt
*/
export function fromEvent(evt) {
return __awaiter(this, void 0, void 0, function* () {
if (isObject(evt) && isDataTransfer(evt.dataTransfer)) {
return getDataTransferFiles(evt.dataTransfer, evt.type);
}
else if (isChangeEvt(evt)) {
return getInputFiles(evt);
}
else if (Array.isArray(evt) && evt.every(item => 'getFile' in item && typeof item.getFile === 'function')) {
return getFsHandleFiles(evt);
}
return [];
});
}
function isDataTransfer(value) {
return isObject(value);
}
function isChangeEvt(value) {
return isObject(value) && isObject(value.target);
}
function isObject(v) {
return typeof v === 'object' && v !== null;
}
function getInputFiles(evt) {
return fromList(evt.target.files).map(file => toFileWithPath(file));
}
// Ee expect each handle to be https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileHandle
function getFsHandleFiles(handles) {
return __awaiter(this, void 0, void 0, function* () {
const files = yield Promise.all(handles.map(h => h.getFile()));
return files.map(file => toFileWithPath(file));
});
}
function getDataTransferFiles(dt, type) {
return __awaiter(this, void 0, void 0, function* () {
// IE11 does not support dataTransfer.items
// See https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer/items#Browser_compatibility
if (dt.items) {
const items = fromList(dt.items)
.filter(item => item.kind === 'file');
// According to https://html.spec.whatwg.org/multipage/dnd.html#dndevents,
// only 'dragstart' and 'drop' has access to the data (source node)
if (type !== 'drop') {
return items;
}
const files = yield Promise.all(items.map(toFilePromises));
return noIgnoredFiles(flatten(files));
}
return noIgnoredFiles(fromList(dt.files)
.map(file => toFileWithPath(file)));
});
}
function noIgnoredFiles(files) {
return files.filter(file => FILES_TO_IGNORE.indexOf(file.name) === -1);
}
// IE11 does not support Array.from()
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/from#Browser_compatibility
// https://developer.mozilla.org/en-US/docs/Web/API/FileList
// https://developer.mozilla.org/en-US/docs/Web/API/DataTransferItemList
function fromList(items) {
if (items === null) {
return [];
}
const files = [];
// tslint:disable: prefer-for-of
for (let i = 0; i < items.length; i++) {
const file = items[i];
files.push(file);
}
return files;
}
// https://developer.mozilla.org/en-US/docs/Web/API/DataTransferItem
function toFilePromises(item) {
if (typeof item.webkitGetAsEntry !== 'function') {
return fromDataTransferItem(item);
}
const entry = item.webkitGetAsEntry();
// Safari supports dropping an image node from a different window and can be retrieved using
// the DataTransferItem.getAsFile() API
// NOTE: FileSystemEntry.file() throws if trying to get the file
if (entry && entry.isDirectory) {
return fromDirEntry(entry);
}
return fromDataTransferItem(item, entry);
}
function flatten(items) {
return items.reduce((acc, files) => [
...acc,
...(Array.isArray(files) ? flatten(files) : [files])
], []);
}
function fromDataTransferItem(item, entry) {
return __awaiter(this, void 0, void 0, function* () {
var _a;
// Check if we're in a secure context; due to a bug in Chrome (as far as we know)
// the browser crashes when calling this API (yet to be confirmed as a consistent behaviour).
//
// See:
// - https://issues.chromium.org/issues/40186242
// - https://github.com/react-dropzone/react-dropzone/issues/1397
if (globalThis.isSecureContext && typeof item.getAsFileSystemHandle === 'function') {
const h = yield item.getAsFileSystemHandle();
if (h === null) {
throw new Error(`${item} is not a File`);
}
// It seems that the handle can be `undefined` (see https://github.com/react-dropzone/file-selector/issues/120),
// so we check if it isn't; if it is, the code path continues to the next API (`getAsFile`).
if (h !== undefined) {
const file = yield h.getFile();
file.handle = h;
return toFileWithPath(file);
}
}
const file = item.getAsFile();
if (!file) {
throw new Error(`${item} is not a File`);
}
const fwp = toFileWithPath(file, (_a = entry === null || entry === void 0 ? void 0 : entry.fullPath) !== null && _a !== void 0 ? _a : undefined);
return fwp;
});
}
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemEntry
function fromEntry(entry) {
return __awaiter(this, void 0, void 0, function* () {
return entry.isDirectory ? fromDirEntry(entry) : fromFileEntry(entry);
});
}
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryEntry
function fromDirEntry(entry) {
const reader = entry.createReader();
return new Promise((resolve, reject) => {
const entries = [];
function readEntries() {
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryEntry/createReader
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryReader/readEntries
reader.readEntries((batch) => __awaiter(this, void 0, void 0, function* () {
if (!batch.length) {
// Done reading directory
try {
const files = yield Promise.all(entries);
resolve(files);
}
catch (err) {
reject(err);
}
}
else {
const items = Promise.all(batch.map(fromEntry));
entries.push(items);
// Continue reading
readEntries();
}
}), (err) => {
reject(err);
});
}
readEntries();
});
}
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileEntry
function fromFileEntry(entry) {
return __awaiter(this, void 0, void 0, function* () {
return new Promise((resolve, reject) => {
entry.file((file) => {
const fwp = toFileWithPath(file, entry.fullPath);
resolve(fwp);
}, (err) => {
reject(err);
});
});
});
}
//# sourceMappingURL=file-selector.js.map

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export { fromEvent } from './file-selector';
//# sourceMappingURL=index.js.map

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import { FileWithPath } from './file';
/**
* Convert a DragEvent's DataTrasfer object to a list of File objects
* NOTE: If some of the items are folders,
* everything will be flattened and placed in the same list but the paths will be kept as a {path} property.
*
* EXPERIMENTAL: A list of https://developer.mozilla.org/en-US/docs/Web/API/FileSystemHandle objects can also be passed as an arg
* and a list of File objects will be returned.
*
* @param evt
*/
export declare function fromEvent(evt: Event | any): Promise<(FileWithPath | DataTransferItem)[]>;

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"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g = Object.create((typeof Iterator === "function" ? Iterator : Object).prototype);
return g.next = verb(0), g["throw"] = verb(1), g["return"] = verb(2), typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
var __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
if (ar || !(i in from)) {
if (!ar) ar = Array.prototype.slice.call(from, 0, i);
ar[i] = from[i];
}
}
return to.concat(ar || Array.prototype.slice.call(from));
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.fromEvent = fromEvent;
var file_1 = require("./file");
var FILES_TO_IGNORE = [
// Thumbnail cache files for macOS and Windows
'.DS_Store', // macOs
'Thumbs.db' // Windows
];
/**
* Convert a DragEvent's DataTrasfer object to a list of File objects
* NOTE: If some of the items are folders,
* everything will be flattened and placed in the same list but the paths will be kept as a {path} property.
*
* EXPERIMENTAL: A list of https://developer.mozilla.org/en-US/docs/Web/API/FileSystemHandle objects can also be passed as an arg
* and a list of File objects will be returned.
*
* @param evt
*/
function fromEvent(evt) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
if (isObject(evt) && isDataTransfer(evt.dataTransfer)) {
return [2 /*return*/, getDataTransferFiles(evt.dataTransfer, evt.type)];
}
else if (isChangeEvt(evt)) {
return [2 /*return*/, getInputFiles(evt)];
}
else if (Array.isArray(evt) && evt.every(function (item) { return 'getFile' in item && typeof item.getFile === 'function'; })) {
return [2 /*return*/, getFsHandleFiles(evt)];
}
return [2 /*return*/, []];
});
});
}
function isDataTransfer(value) {
return isObject(value);
}
function isChangeEvt(value) {
return isObject(value) && isObject(value.target);
}
function isObject(v) {
return typeof v === 'object' && v !== null;
}
function getInputFiles(evt) {
return fromList(evt.target.files).map(function (file) { return (0, file_1.toFileWithPath)(file); });
}
// Ee expect each handle to be https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileHandle
function getFsHandleFiles(handles) {
return __awaiter(this, void 0, void 0, function () {
var files;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, Promise.all(handles.map(function (h) { return h.getFile(); }))];
case 1:
files = _a.sent();
return [2 /*return*/, files.map(function (file) { return (0, file_1.toFileWithPath)(file); })];
}
});
});
}
function getDataTransferFiles(dt, type) {
return __awaiter(this, void 0, void 0, function () {
var items, files;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!dt.items) return [3 /*break*/, 2];
items = fromList(dt.items)
.filter(function (item) { return item.kind === 'file'; });
// According to https://html.spec.whatwg.org/multipage/dnd.html#dndevents,
// only 'dragstart' and 'drop' has access to the data (source node)
if (type !== 'drop') {
return [2 /*return*/, items];
}
return [4 /*yield*/, Promise.all(items.map(toFilePromises))];
case 1:
files = _a.sent();
return [2 /*return*/, noIgnoredFiles(flatten(files))];
case 2: return [2 /*return*/, noIgnoredFiles(fromList(dt.files)
.map(function (file) { return (0, file_1.toFileWithPath)(file); }))];
}
});
});
}
function noIgnoredFiles(files) {
return files.filter(function (file) { return FILES_TO_IGNORE.indexOf(file.name) === -1; });
}
// IE11 does not support Array.from()
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/from#Browser_compatibility
// https://developer.mozilla.org/en-US/docs/Web/API/FileList
// https://developer.mozilla.org/en-US/docs/Web/API/DataTransferItemList
function fromList(items) {
if (items === null) {
return [];
}
var files = [];
// tslint:disable: prefer-for-of
for (var i = 0; i < items.length; i++) {
var file = items[i];
files.push(file);
}
return files;
}
// https://developer.mozilla.org/en-US/docs/Web/API/DataTransferItem
function toFilePromises(item) {
if (typeof item.webkitGetAsEntry !== 'function') {
return fromDataTransferItem(item);
}
var entry = item.webkitGetAsEntry();
// Safari supports dropping an image node from a different window and can be retrieved using
// the DataTransferItem.getAsFile() API
// NOTE: FileSystemEntry.file() throws if trying to get the file
if (entry && entry.isDirectory) {
return fromDirEntry(entry);
}
return fromDataTransferItem(item, entry);
}
function flatten(items) {
return items.reduce(function (acc, files) { return __spreadArray(__spreadArray([], __read(acc), false), __read((Array.isArray(files) ? flatten(files) : [files])), false); }, []);
}
function fromDataTransferItem(item, entry) {
return __awaiter(this, void 0, void 0, function () {
var h, file_2, file, fwp;
var _a;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
if (!(globalThis.isSecureContext && typeof item.getAsFileSystemHandle === 'function')) return [3 /*break*/, 3];
return [4 /*yield*/, item.getAsFileSystemHandle()];
case 1:
h = _b.sent();
if (h === null) {
throw new Error("".concat(item, " is not a File"));
}
if (!(h !== undefined)) return [3 /*break*/, 3];
return [4 /*yield*/, h.getFile()];
case 2:
file_2 = _b.sent();
file_2.handle = h;
return [2 /*return*/, (0, file_1.toFileWithPath)(file_2)];
case 3:
file = item.getAsFile();
if (!file) {
throw new Error("".concat(item, " is not a File"));
}
fwp = (0, file_1.toFileWithPath)(file, (_a = entry === null || entry === void 0 ? void 0 : entry.fullPath) !== null && _a !== void 0 ? _a : undefined);
return [2 /*return*/, fwp];
}
});
});
}
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemEntry
function fromEntry(entry) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
return [2 /*return*/, entry.isDirectory ? fromDirEntry(entry) : fromFileEntry(entry)];
});
});
}
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryEntry
function fromDirEntry(entry) {
var reader = entry.createReader();
return new Promise(function (resolve, reject) {
var entries = [];
function readEntries() {
var _this = this;
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryEntry/createReader
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryReader/readEntries
reader.readEntries(function (batch) { return __awaiter(_this, void 0, void 0, function () {
var files, err_1, items;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!!batch.length) return [3 /*break*/, 5];
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4 /*yield*/, Promise.all(entries)];
case 2:
files = _a.sent();
resolve(files);
return [3 /*break*/, 4];
case 3:
err_1 = _a.sent();
reject(err_1);
return [3 /*break*/, 4];
case 4: return [3 /*break*/, 6];
case 5:
items = Promise.all(batch.map(fromEntry));
entries.push(items);
// Continue reading
readEntries();
_a.label = 6;
case 6: return [2 /*return*/];
}
});
}); }, function (err) {
reject(err);
});
}
readEntries();
});
}
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileEntry
function fromFileEntry(entry) {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
return [2 /*return*/, new Promise(function (resolve, reject) {
entry.file(function (file) {
var fwp = (0, file_1.toFileWithPath)(file, entry.fullPath);
resolve(fwp);
}, function (err) {
reject(err);
});
})];
});
});
}
//# sourceMappingURL=file-selector.js.map

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export declare const COMMON_MIME_TYPES: Map<string, string>;
export declare function toFileWithPath(file: FileWithPath, path?: string, h?: FileSystemHandle): FileWithPath;
export interface FileWithPath extends File {
readonly path?: string;
readonly handle?: FileSystemFileHandle;
readonly relativePath?: string;
}

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export { fromEvent } from './file-selector';
export { FileWithPath } from './file';

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.fromEvent = void 0;
var file_selector_1 = require("./file-selector");
Object.defineProperty(exports, "fromEvent", { enumerable: true, get: function () { return file_selector_1.fromEvent; } });
//# sourceMappingURL=index.js.map

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{"version":3,"file":"index.js","sourceRoot":"","sources":["../src/index.ts"],"names":[],"mappings":";;;AAAA,iDAA0C;AAAlC,0GAAA,SAAS,OAAA"}

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{
"name": "file-selector",
"version": "2.1.2",
"description": "Convert DataTransfer object to a list of File objects",
"main": "./dist/index.js",
"module": "./dist/es2015/index.js",
"types": "./dist/index.d.ts",
"files": [
"dist/**/*",
"src/*",
"!*.spec.*"
],
"keywords": [
"drag-and-drop",
"html5",
"file-api",
"DataTransfer",
"File"
],
"homepage": "https://github.com/react-dropzone/file-selector",
"license": "MIT",
"author": {
"name": "Roland Groza",
"email": "rolandjitsu@gmail.com"
},
"repository": {
"type": "git",
"url": "https://github.com/react-dropzone/file-selector.git"
},
"publishConfig": {
"access": "public"
},
"scripts": {
"prebuild": "npm run clean",
"build": "npm-run-all -s compile build:umd",
"build:umd": "rollup -c ./rollup.config.mjs",
"compile": "npm-run-all -p compile:es2015 compile:cjs compile:types",
"compile:es2015": "tsc -p ./tsconfig.es2015.json",
"compile:cjs": "tsc -p ./tsconfig.cjs.json",
"compile:types": "tsc -p ./tsconfig.types.json",
"clean": "rm -rf dist/*",
"lint": "tslint -c tslint.json -p ./tsconfig.spec.json -t stylish",
"lint:fix": "npm run lint -- --fix",
"pretest:cov": "npm run lint",
"test:cov": "jest --coverage",
"test": "jest --watch"
},
"dependencies": {
"tslib": "^2.7.0"
},
"devDependencies": {
"@rollup/plugin-commonjs": "^28.0.0",
"@rollup/plugin-node-resolve": "^15.3.0",
"@rollup/plugin-terser": "^0.4.4",
"@types/jest": "^29.5.13",
"@types/node": "^22.7.5",
"camelcase": "^8.0.0",
"jest": "^29.7.0",
"jest-environment-jsdom": "^29.7.0",
"npm-run-all": "^4.1.5",
"rollup": "^4.24.0",
"ts-jest": "^29.2.5",
"tslint": "^6.1.3",
"typescript": "^5.6.2"
},
"engines": {
"node": ">= 12"
}
}

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import {FileWithPath, toFileWithPath} from './file';
const FILES_TO_IGNORE = [
// Thumbnail cache files for macOS and Windows
'.DS_Store', // macOs
'Thumbs.db' // Windows
];
/**
* Convert a DragEvent's DataTrasfer object to a list of File objects
* NOTE: If some of the items are folders,
* everything will be flattened and placed in the same list but the paths will be kept as a {path} property.
*
* EXPERIMENTAL: A list of https://developer.mozilla.org/en-US/docs/Web/API/FileSystemHandle objects can also be passed as an arg
* and a list of File objects will be returned.
*
* @param evt
*/
export async function fromEvent(evt: Event | any): Promise<(FileWithPath | DataTransferItem)[]> {
if (isObject<DragEvent>(evt) && isDataTransfer(evt.dataTransfer)) {
return getDataTransferFiles(evt.dataTransfer, evt.type);
} else if (isChangeEvt(evt)) {
return getInputFiles(evt);
} else if (Array.isArray(evt) && evt.every(item => 'getFile' in item && typeof item.getFile === 'function')) {
return getFsHandleFiles(evt)
}
return [];
}
function isDataTransfer(value: any): value is DataTransfer {
return isObject(value);
}
function isChangeEvt(value: any): value is Event {
return isObject<Event>(value) && isObject(value.target);
}
function isObject<T>(v: any): v is T {
return typeof v === 'object' && v !== null
}
function getInputFiles(evt: Event) {
return fromList<FileWithPath>((evt.target as HTMLInputElement).files).map(file => toFileWithPath(file));
}
// Ee expect each handle to be https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileHandle
async function getFsHandleFiles(handles: any[]) {
const files = await Promise.all(handles.map(h => h.getFile()));
return files.map(file => toFileWithPath(file));
}
async function getDataTransferFiles(dt: DataTransfer, type: string) {
// IE11 does not support dataTransfer.items
// See https://developer.mozilla.org/en-US/docs/Web/API/DataTransfer/items#Browser_compatibility
if (dt.items) {
const items = fromList<DataTransferItem>(dt.items)
.filter(item => item.kind === 'file');
// According to https://html.spec.whatwg.org/multipage/dnd.html#dndevents,
// only 'dragstart' and 'drop' has access to the data (source node)
if (type !== 'drop') {
return items;
}
const files = await Promise.all(items.map(toFilePromises));
return noIgnoredFiles(flatten<FileWithPath>(files));
}
return noIgnoredFiles(fromList<FileWithPath>(dt.files)
.map(file => toFileWithPath(file)));
}
function noIgnoredFiles(files: FileWithPath[]) {
return files.filter(file => FILES_TO_IGNORE.indexOf(file.name) === -1);
}
// IE11 does not support Array.from()
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/from#Browser_compatibility
// https://developer.mozilla.org/en-US/docs/Web/API/FileList
// https://developer.mozilla.org/en-US/docs/Web/API/DataTransferItemList
function fromList<T>(items: DataTransferItemList | FileList | null): T[] {
if (items === null) {
return [];
}
const files = [];
// tslint:disable: prefer-for-of
for (let i = 0; i < items.length; i++) {
const file = items[i];
files.push(file);
}
return files as any;
}
// https://developer.mozilla.org/en-US/docs/Web/API/DataTransferItem
function toFilePromises(item: DataTransferItem) {
if (typeof item.webkitGetAsEntry !== 'function') {
return fromDataTransferItem(item);
}
const entry = item.webkitGetAsEntry();
// Safari supports dropping an image node from a different window and can be retrieved using
// the DataTransferItem.getAsFile() API
// NOTE: FileSystemEntry.file() throws if trying to get the file
if (entry && entry.isDirectory) {
return fromDirEntry(entry) as any;
}
return fromDataTransferItem(item, entry);
}
function flatten<T>(items: any[]): T[] {
return items.reduce((acc, files) => [
...acc,
...(Array.isArray(files) ? flatten(files) : [files])
], []);
}
async function fromDataTransferItem(item: DataTransferItem, entry?: FileSystemEntry | null) {
// Check if we're in a secure context; due to a bug in Chrome (as far as we know)
// the browser crashes when calling this API (yet to be confirmed as a consistent behaviour).
//
// See:
// - https://issues.chromium.org/issues/40186242
// - https://github.com/react-dropzone/react-dropzone/issues/1397
if (globalThis.isSecureContext && typeof (item as any).getAsFileSystemHandle === 'function') {
const h = await (item as any).getAsFileSystemHandle();
if (h === null) {
throw new Error(`${item} is not a File`);
}
// It seems that the handle can be `undefined` (see https://github.com/react-dropzone/file-selector/issues/120),
// so we check if it isn't; if it is, the code path continues to the next API (`getAsFile`).
if (h !== undefined) {
const file = await h.getFile();
file.handle = h;
return toFileWithPath(file);
}
}
const file = item.getAsFile();
if (!file) {
throw new Error(`${item} is not a File`);
}
const fwp = toFileWithPath(file, entry?.fullPath ?? undefined);
return fwp;
}
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemEntry
async function fromEntry(entry: any) {
return entry.isDirectory ? fromDirEntry(entry) : fromFileEntry(entry);
}
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryEntry
function fromDirEntry(entry: any) {
const reader = entry.createReader();
return new Promise<FileArray[]>((resolve, reject) => {
const entries: Promise<FileValue[]>[] = [];
function readEntries() {
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryEntry/createReader
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemDirectoryReader/readEntries
reader.readEntries(async (batch: any[]) => {
if (!batch.length) {
// Done reading directory
try {
const files = await Promise.all(entries);
resolve(files);
} catch (err) {
reject(err);
}
} else {
const items = Promise.all(batch.map(fromEntry));
entries.push(items);
// Continue reading
readEntries();
}
}, (err: any) => {
reject(err);
});
}
readEntries();
});
}
// https://developer.mozilla.org/en-US/docs/Web/API/FileSystemFileEntry
async function fromFileEntry(entry: any) {
return new Promise<FileWithPath>((resolve, reject) => {
entry.file((file: FileWithPath) => {
const fwp = toFileWithPath(file, entry.fullPath);
resolve(fwp);
}, (err: any) => {
reject(err);
});
});
}
// Infinite type recursion
// https://github.com/Microsoft/TypeScript/issues/3496#issuecomment-128553540
interface FileArray extends Array<FileValue> {}
type FileValue = FileWithPath
| FileArray[];

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export {fromEvent} from './file-selector';
export {FileWithPath} from './file';