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  1. /**!
  2. * AngularJS file upload/drop directive and service with progress and abort
  3. * @author Danial <danial.farid@gmail.com>
  4. * @version 4.1.0
  5. */
  6. (function () {
  7. var key, i;
  8. function patchXHR(fnName, newFn) {
  9. window.XMLHttpRequest.prototype[fnName] = newFn(window.XMLHttpRequest.prototype[fnName]);
  10. }
  11. if (window.XMLHttpRequest && !window.XMLHttpRequest.__isFileAPIShim) {
  12. patchXHR('setRequestHeader', function (orig) {
  13. return function (header, value) {
  14. if (header === '__setXHR_') {
  15. var val = value(this);
  16. // fix for angular < 1.2.0
  17. if (val instanceof Function) {
  18. val(this);
  19. }
  20. } else {
  21. orig.apply(this, arguments);
  22. }
  23. }
  24. });
  25. }
  26. var ngFileUpload = angular.module('ngFileUpload', []);
  27. ngFileUpload.version = '4.1.0';
  28. ngFileUpload.service('Upload', ['$http', '$q', '$timeout', function ($http, $q, $timeout) {
  29. function sendHttp(config) {
  30. config.method = config.method || 'POST';
  31. config.headers = config.headers || {};
  32. config.transformRequest = config.transformRequest || function (data, headersGetter) {
  33. if (window.ArrayBuffer && data instanceof window.ArrayBuffer) {
  34. return data;
  35. }
  36. return $http.defaults.transformRequest[0](data, headersGetter);
  37. };
  38. var deferred = $q.defer();
  39. var promise = deferred.promise;
  40. config.headers['__setXHR_'] = function () {
  41. return function (xhr) {
  42. if (!xhr) return;
  43. config.__XHR = xhr;
  44. config.xhrFn && config.xhrFn(xhr);
  45. xhr.upload.addEventListener('progress', function (e) {
  46. e.config = config;
  47. deferred.notify ? deferred.notify(e) : promise.progress_fn && $timeout(function () {
  48. promise.progress_fn(e)
  49. });
  50. }, false);
  51. //fix for firefox not firing upload progress end, also IE8-9
  52. xhr.upload.addEventListener('load', function (e) {
  53. if (e.lengthComputable) {
  54. e.config = config;
  55. deferred.notify ? deferred.notify(e) : promise.progress_fn && $timeout(function () {
  56. promise.progress_fn(e)
  57. });
  58. }
  59. }, false);
  60. };
  61. };
  62. $http(config).then(function (r) {
  63. deferred.resolve(r)
  64. }, function (e) {
  65. deferred.reject(e)
  66. }, function (n) {
  67. deferred.notify(n)
  68. });
  69. promise.success = function (fn) {
  70. promise.then(function (response) {
  71. fn(response.data, response.status, response.headers, config);
  72. });
  73. return promise;
  74. };
  75. promise.error = function (fn) {
  76. promise.then(null, function (response) {
  77. fn(response.data, response.status, response.headers, config);
  78. });
  79. return promise;
  80. };
  81. promise.progress = function (fn) {
  82. promise.progress_fn = fn;
  83. promise.then(null, null, function (update) {
  84. fn(update);
  85. });
  86. return promise;
  87. };
  88. promise.abort = function () {
  89. if (config.__XHR) {
  90. $timeout(function () {
  91. config.__XHR.abort();
  92. });
  93. }
  94. return promise;
  95. };
  96. promise.xhr = function (fn) {
  97. config.xhrFn = (function (origXhrFn) {
  98. return function () {
  99. origXhrFn && origXhrFn.apply(promise, arguments);
  100. fn.apply(promise, arguments);
  101. }
  102. })(config.xhrFn);
  103. return promise;
  104. };
  105. return promise;
  106. }
  107. this.upload = function (config) {
  108. config.headers = config.headers || {};
  109. config.headers['Content-Type'] = undefined;
  110. config.transformRequest = config.transformRequest ?
  111. (angular.isArray(config.transformRequest) ?
  112. config.transformRequest : [config.transformRequest]) : [];
  113. config.transformRequest.push(function (data) {
  114. var formData = new FormData();
  115. var allFields = {};
  116. for (key in config.fields) {
  117. if (config.fields.hasOwnProperty(key)) {
  118. allFields[key] = config.fields[key];
  119. }
  120. }
  121. if (data) allFields['data'] = data;
  122. if (config.formDataAppender) {
  123. for (key in allFields) {
  124. if (allFields.hasOwnProperty(key)) {
  125. config.formDataAppender(formData, key, allFields[key]);
  126. }
  127. }
  128. } else {
  129. for (key in allFields) {
  130. if (allFields.hasOwnProperty(key)) {
  131. var val = allFields[key];
  132. if (val !== undefined) {
  133. if (angular.isDate(val)) {
  134. val = val.toISOString();
  135. }
  136. if (angular.isString(val)) {
  137. formData.append(key, val);
  138. } else {
  139. if (config.sendObjectsAsJsonBlob && angular.isObject(val)) {
  140. formData.append(key, new Blob([val], {type: 'application/json'}));
  141. } else {
  142. formData.append(key, JSON.stringify(val));
  143. }
  144. }
  145. }
  146. }
  147. }
  148. }
  149. if (config.file != null) {
  150. var fileFormName = config.fileFormDataName || 'file';
  151. if (angular.isArray(config.file)) {
  152. var isFileFormNameString = angular.isString(fileFormName);
  153. for (var i = 0; i < config.file.length; i++) {
  154. formData.append(isFileFormNameString ? fileFormName : fileFormName[i], config.file[i],
  155. (config.fileName && config.fileName[i]) || config.file[i].name);
  156. }
  157. } else {
  158. formData.append(fileFormName, config.file, config.fileName || config.file.name);
  159. }
  160. }
  161. return formData;
  162. });
  163. return sendHttp(config);
  164. };
  165. this.http = function (config) {
  166. return sendHttp(config);
  167. };
  168. }]);
  169. ngFileUpload.directive('ngfSelect', ['$parse', '$timeout', '$compile',
  170. function ($parse, $timeout, $compile) {
  171. return {
  172. restrict: 'AEC',
  173. require: '?ngModel',
  174. link: function (scope, elem, attr, ngModel) {
  175. linkFileSelect(scope, elem, attr, ngModel, $parse, $timeout, $compile);
  176. }
  177. }
  178. }]);
  179. function linkFileSelect(scope, elem, attr, ngModel, $parse, $timeout, $compile) {
  180. function isInputTypeFile() {
  181. return elem[0].tagName.toLowerCase() === 'input' && elem.attr('type') && elem.attr('type').toLowerCase() === 'file';
  182. }
  183. var changeFnAttr = attr.ngfChange || (attr.ngfSelect && attr.ngfSelect.indexOf('(') > 0);
  184. var isUpdating = false;
  185. function changeFn(evt) {
  186. if (!isUpdating) {
  187. isUpdating = true;
  188. try {
  189. var fileList = evt.__files_ || (evt.target && evt.target.files);
  190. var files = [], rejFiles = [];
  191. for (var i = 0; i < fileList.length; i++) {
  192. var file = fileList.item(i);
  193. if (validate(scope, $parse, attr, file, evt)) {
  194. files.push(file);
  195. } else {
  196. rejFiles.push(file);
  197. }
  198. }
  199. updateModel($parse, $timeout, scope, ngModel, attr, changeFnAttr, files, rejFiles, evt);
  200. if (files.length == 0) evt.target.value = files;
  201. // if (evt.target && evt.target.getAttribute('__ngf_gen__')) {
  202. // angular.element(evt.target).remove();
  203. // }
  204. } finally {
  205. isUpdating = false;
  206. }
  207. }
  208. }
  209. function bindAttrToFileInput(fileElem) {
  210. if (attr.ngfMultiple) fileElem.attr('multiple', $parse(attr.ngfMultiple)(scope));
  211. if (!$parse(attr.ngfMultiple)(scope)) fileElem.attr('multiple', undefined);
  212. if (attr['accept']) fileElem.attr('accept', attr['accept']);
  213. if (attr.ngfCapture) fileElem.attr('capture', $parse(attr.ngfCapture)(scope));
  214. if (attr.ngfDisabled) fileElem.attr('disabled', $parse(attr.ngfDisabled)(scope));
  215. for (var i = 0; i < elem[0].attributes.length; i++) {
  216. var attribute = elem[0].attributes[i];
  217. if (attribute.name !== 'type' && attribute.name !== 'class' && attribute.name !== 'id' && attribute.name !== 'style') {
  218. fileElem.attr(attribute.name, attribute.value);
  219. }
  220. }
  221. }
  222. function createFileInput(evt) {
  223. if (elem.attr('disabled')) {
  224. return;
  225. }
  226. var fileElem = angular.element('<input type="file">');
  227. bindAttrToFileInput(fileElem);
  228. if (isInputTypeFile()) {
  229. elem.replaceWith(fileElem);
  230. elem = fileElem;
  231. } else {
  232. fileElem.css('display', 'none').attr('tabindex', '-1').attr('__ngf_gen__', true);
  233. if (elem.__ngf_ref_elem__) {elem.__ngf_ref_elem__.remove();}
  234. elem.__ngf_ref_elem__ = fileElem;
  235. document.body.appendChild(fileElem[0]);
  236. }
  237. return fileElem;
  238. }
  239. function resetModel(evt) {
  240. updateModel($parse, $timeout, scope, ngModel, attr, changeFnAttr, [], [], evt, true);
  241. }
  242. function clickHandler(evt) {
  243. evt.preventDefault();
  244. var fileElem = createFileInput(evt);
  245. if (fileElem) {
  246. fileElem.bind('change', changeFn);
  247. resetModel(evt);
  248. function clickAndAssign() {
  249. fileElem[0].click();
  250. if (isInputTypeFile()) {
  251. elem.bind('click touchend', clickHandler);
  252. evt.preventDefault()
  253. }
  254. }
  255. // fix for android native browser
  256. if (navigator.userAgent.toLowerCase().match(/android/)) {
  257. setTimeout(function() {
  258. clickAndAssign();
  259. }, 0);
  260. } else {
  261. clickAndAssign();
  262. }
  263. }
  264. }
  265. if (window.FileAPI && window.FileAPI.ngfFixIE) {
  266. window.FileAPI.ngfFixIE(elem, createFileInput, bindAttrToFileInput, changeFn, resetModel);
  267. } else {
  268. elem.bind('click touchend', clickHandler);
  269. }
  270. }
  271. ngFileUpload.directive('ngfDrop', ['$parse', '$timeout', '$location', function ($parse, $timeout, $location) {
  272. return {
  273. restrict: 'AEC',
  274. require: '?ngModel',
  275. link: function (scope, elem, attr, ngModel) {
  276. linkDrop(scope, elem, attr, ngModel, $parse, $timeout, $location);
  277. }
  278. }
  279. }]);
  280. ngFileUpload.directive('ngfNoFileDrop', function () {
  281. return function (scope, elem) {
  282. if (dropAvailable()) elem.css('display', 'none')
  283. }
  284. });
  285. ngFileUpload.directive('ngfDropAvailable', ['$parse', '$timeout', function ($parse, $timeout) {
  286. return function (scope, elem, attr) {
  287. if (dropAvailable()) {
  288. var fn = $parse(attr.ngfDropAvailable);
  289. $timeout(function () {
  290. fn(scope);
  291. if (fn.assign) {
  292. fn.assign(scope, true);
  293. }
  294. });
  295. }
  296. }
  297. }]);
  298. function linkDrop(scope, elem, attr, ngModel, $parse, $timeout, $location) {
  299. var available = dropAvailable();
  300. if (attr.dropAvailable) {
  301. $timeout(function () {
  302. scope[attr.dropAvailable] ? scope[attr.dropAvailable].value = available : scope[attr.dropAvailable] = available;
  303. });
  304. }
  305. if (!available) {
  306. if ($parse(attr.ngfHideOnDropNotAvailable)(scope) == true) {
  307. elem.css('display', 'none');
  308. }
  309. return;
  310. }
  311. var leaveTimeout = null;
  312. var stopPropagation = $parse(attr.ngfStopPropagation);
  313. var dragOverDelay = 1;
  314. var accept = $parse(attr.ngfAccept);
  315. var disabled = $parse(attr.ngfDisabled);
  316. var actualDragOverClass;
  317. elem[0].addEventListener('dragover', function (evt) {
  318. if (disabled(scope)) return;
  319. evt.preventDefault();
  320. if (stopPropagation(scope)) evt.stopPropagation();
  321. // handling dragover events from the Chrome download bar
  322. if (navigator.userAgent.indexOf("Chrome") > -1) {
  323. var b = evt.dataTransfer.effectAllowed;
  324. evt.dataTransfer.dropEffect = ('move' === b || 'linkMove' === b) ? 'move' : 'copy';
  325. }
  326. $timeout.cancel(leaveTimeout);
  327. if (!scope.actualDragOverClass) {
  328. actualDragOverClass = calculateDragOverClass(scope, attr, evt);
  329. }
  330. elem.addClass(actualDragOverClass);
  331. }, false);
  332. elem[0].addEventListener('dragenter', function (evt) {
  333. if (disabled(scope)) return;
  334. evt.preventDefault();
  335. if (stopPropagation(scope)) evt.stopPropagation();
  336. }, false);
  337. elem[0].addEventListener('dragleave', function () {
  338. if (disabled(scope)) return;
  339. leaveTimeout = $timeout(function () {
  340. elem.removeClass(actualDragOverClass);
  341. actualDragOverClass = null;
  342. }, dragOverDelay || 1);
  343. }, false);
  344. elem[0].addEventListener('drop', function (evt) {
  345. if (disabled(scope)) return;
  346. evt.preventDefault();
  347. if (stopPropagation(scope)) evt.stopPropagation();
  348. elem.removeClass(actualDragOverClass);
  349. actualDragOverClass = null;
  350. extractFiles(evt, function (files, rejFiles) {
  351. updateModel($parse, $timeout, scope, ngModel, attr,
  352. attr.ngfChange || (attr.ngfDrop && attr.ngfDrop.indexOf('(') > 0), files, rejFiles, evt)
  353. }, $parse(attr.ngfAllowDir)(scope) != false, attr.multiple || $parse(attr.ngfMultiple)(scope));
  354. }, false);
  355. function calculateDragOverClass(scope, attr, evt) {
  356. var accepted = true;
  357. var items = evt.dataTransfer.items;
  358. if (items != null) {
  359. for (var i = 0; i < items.length && accepted; i++) {
  360. accepted = accepted
  361. && (items[i].kind == 'file' || items[i].kind == '')
  362. && validate(scope, $parse, attr, items[i], evt);
  363. }
  364. }
  365. var clazz = $parse(attr.ngfDragOverClass)(scope, {$event: evt});
  366. if (clazz) {
  367. if (clazz.delay) dragOverDelay = clazz.delay;
  368. if (clazz.accept) clazz = accepted ? clazz.accept : clazz.reject;
  369. }
  370. return clazz || attr.ngfDragOverClass || 'dragover';
  371. }
  372. function extractFiles(evt, callback, allowDir, multiple) {
  373. var files = [], rejFiles = [], items = evt.dataTransfer.items, processing = 0;
  374. function addFile(file) {
  375. if (validate(scope, $parse, attr, file, evt)) {
  376. files.push(file);
  377. } else {
  378. rejFiles.push(file);
  379. }
  380. }
  381. if (items && items.length > 0 && $location.protocol() != 'file') {
  382. for (var i = 0; i < items.length; i++) {
  383. if (items[i].webkitGetAsEntry && items[i].webkitGetAsEntry() && items[i].webkitGetAsEntry().isDirectory) {
  384. var entry = items[i].webkitGetAsEntry();
  385. if (entry.isDirectory && !allowDir) {
  386. continue;
  387. }
  388. if (entry != null) {
  389. traverseFileTree(files, entry);
  390. }
  391. } else {
  392. var f = items[i].getAsFile();
  393. if (f != null) addFile(f);
  394. }
  395. if (!multiple && files.length > 0) break;
  396. }
  397. } else {
  398. var fileList = evt.dataTransfer.files;
  399. if (fileList != null) {
  400. for (var i = 0; i < fileList.length; i++) {
  401. addFile(fileList.item(i));
  402. if (!multiple && files.length > 0) break;
  403. }
  404. }
  405. }
  406. var delays = 0;
  407. (function waitForProcess(delay) {
  408. $timeout(function () {
  409. if (!processing) {
  410. if (!multiple && files.length > 1) {
  411. i = 0;
  412. while (files[i].type == 'directory') i++;
  413. files = [files[i]];
  414. }
  415. callback(files, rejFiles);
  416. } else {
  417. if (delays++ * 10 < 20 * 1000) {
  418. waitForProcess(10);
  419. }
  420. }
  421. }, delay || 0)
  422. })();
  423. function traverseFileTree(files, entry, path) {
  424. if (entry != null) {
  425. if (entry.isDirectory) {
  426. var filePath = (path || '') + entry.name;
  427. addFile({name: entry.name, type: 'directory', path: filePath});
  428. var dirReader = entry.createReader();
  429. var entries = [];
  430. processing++;
  431. var readEntries = function () {
  432. dirReader.readEntries(function (results) {
  433. try {
  434. if (!results.length) {
  435. for (var i = 0; i < entries.length; i++) {
  436. traverseFileTree(files, entries[i], (path ? path : '') + entry.name + '/');
  437. }
  438. processing--;
  439. } else {
  440. entries = entries.concat(Array.prototype.slice.call(results || [], 0));
  441. readEntries();
  442. }
  443. } catch (e) {
  444. processing--;
  445. console.error(e);
  446. }
  447. }, function () {
  448. processing--;
  449. });
  450. };
  451. readEntries();
  452. } else {
  453. processing++;
  454. entry.file(function (file) {
  455. try {
  456. processing--;
  457. file.path = (path ? path : '') + file.name;
  458. addFile(file);
  459. } catch (e) {
  460. processing--;
  461. console.error(e);
  462. }
  463. }, function () {
  464. processing--;
  465. });
  466. }
  467. }
  468. }
  469. }
  470. }
  471. ngFileUpload.directive('ngfSrc', ['$parse', '$timeout', function ($parse, $timeout) {
  472. return {
  473. restrict: 'AE',
  474. link: function (scope, elem, attr, file) {
  475. if (window.FileReader) {
  476. scope.$watch(attr.ngfSrc, function(file) {
  477. if (file) {
  478. $timeout(function() {
  479. var fileReader = new FileReader();
  480. fileReader.readAsDataURL(file);
  481. fileReader.onload = function(e) {
  482. $timeout(function() {
  483. elem.attr('src', e.target.result);
  484. });
  485. }
  486. });
  487. } else {
  488. elem.attr('src', '');
  489. }
  490. });
  491. }
  492. }
  493. }
  494. }]);
  495. function dropAvailable() {
  496. var div = document.createElement('div');
  497. return ('draggable' in div) && ('ondrop' in div);
  498. }
  499. function updateModel($parse, $timeout, scope, ngModel, attr, fileChange, files, rejFiles, evt, noDelay) {
  500. function update() {
  501. if (ngModel) {
  502. $parse(attr.ngModel).assign(scope, files);
  503. $timeout(function () {
  504. ngModel && ngModel.$setViewValue(files != null && files.length == 0 ? null : files);
  505. });
  506. }
  507. if (attr.ngModelRejected) {
  508. $parse(attr.ngModelRejected).assign(scope, rejFiles);
  509. }
  510. if (fileChange) {
  511. $parse(fileChange)(scope, {
  512. $files: files,
  513. $rejectedFiles: rejFiles,
  514. $event: evt
  515. });
  516. }
  517. }
  518. if (noDelay) {
  519. update();
  520. } else {
  521. $timeout(function () {
  522. update();
  523. });
  524. }
  525. }
  526. function validate(scope, $parse, attr, file, evt) {
  527. var accept = $parse(attr.ngfAccept);
  528. var fileSizeMax = $parse(attr.ngfMaxSize)(scope) || 9007199254740991;
  529. var fileSizeMin = $parse(attr.ngfMinSize)(scope) || -1;
  530. var val = accept(scope, {$file: file, $event: evt}), match = false;
  531. if (val != null && angular.isString(val)) {
  532. var regexp = new RegExp(globStringToRegex(val), 'gi');
  533. match = (file.type != null && file.type.match(regexp)) ||
  534. (file.name != null && file.name.match(regexp));
  535. }
  536. return (val == null || match) && (file.size == null || (file.size < fileSizeMax && file.size > fileSizeMin));
  537. }
  538. function globStringToRegex(str) {
  539. if (str.length > 2 && str[0] === '/' && str[str.length - 1] === '/') {
  540. return str.substring(1, str.length - 1);
  541. }
  542. var split = str.split(','), result = '';
  543. if (split.length > 1) {
  544. for (var i = 0; i < split.length; i++) {
  545. result += '(' + globStringToRegex(split[i]) + ')';
  546. if (i < split.length - 1) {
  547. result += '|'
  548. }
  549. }
  550. } else {
  551. if (str.indexOf('.') == 0) {
  552. str = '*' + str;
  553. }
  554. result = '^' + str.replace(new RegExp('[.\\\\+*?\\[\\^\\]$(){}=!<>|:\\' + '-]', 'g'), '\\$&') + '$';
  555. result = result.replace(/\\\*/g, '.*').replace(/\\\?/g, '.');
  556. }
  557. return result;
  558. }
  559. })();