1/* 2 * jQuery File Upload Plugin 3 * https://github.com/blueimp/jQuery-File-Upload 4 * 5 * Copyright 2010, Sebastian Tschan 6 * https://blueimp.net 7 * 8 * Licensed under the MIT license: 9 * https://opensource.org/licenses/MIT 10 */ 11 12/* global define, require */ 13/* eslint-disable new-cap */ 14 15(function (factory) { 16 'use strict'; 17 if (typeof define === 'function' && define.amd) { 18 // Register as an anonymous AMD module: 19 define(['jquery', 'jquery-ui/ui/widget'], factory); 20 } else if (typeof exports === 'object') { 21 // Node/CommonJS: 22 factory(require('jquery'), require('./vendor/jquery.ui.widget')); 23 } else { 24 // Browser globals: 25 factory(window.jQuery); 26 } 27})(function ($) { 28 'use strict'; 29 30 // Detect file input support, based on 31 // https://viljamis.com/2012/file-upload-support-on-mobile/ 32 $.support.fileInput = !( 33 new RegExp( 34 // Handle devices which give false positives for the feature detection: 35 '(Android (1\\.[0156]|2\\.[01]))' + 36 '|(Windows Phone (OS 7|8\\.0))|(XBLWP)|(ZuneWP)|(WPDesktop)' + 37 '|(w(eb)?OSBrowser)|(webOS)' + 38 '|(Kindle/(1\\.0|2\\.[05]|3\\.0))' 39 ).test(window.navigator.userAgent) || 40 // Feature detection for all other devices: 41 $('<input type="file"/>').prop('disabled') 42 ); 43 44 // The FileReader API is not actually used, but works as feature detection, 45 // as some Safari versions (5?) support XHR file uploads via the FormData API, 46 // but not non-multipart XHR file uploads. 47 // window.XMLHttpRequestUpload is not available on IE10, so we check for 48 // window.ProgressEvent instead to detect XHR2 file upload capability: 49 $.support.xhrFileUpload = !!(window.ProgressEvent && window.FileReader); 50 $.support.xhrFormDataFileUpload = !!window.FormData; 51 52 // Detect support for Blob slicing (required for chunked uploads): 53 $.support.blobSlice = 54 window.Blob && 55 (Blob.prototype.slice || 56 Blob.prototype.webkitSlice || 57 Blob.prototype.mozSlice); 58 59 /** 60 * Helper function to create drag handlers for dragover/dragenter/dragleave 61 * 62 * @param {string} type Event type 63 * @returns {Function} Drag handler 64 */ 65 function getDragHandler(type) { 66 var isDragOver = type === 'dragover'; 67 return function (e) { 68 e.dataTransfer = e.originalEvent && e.originalEvent.dataTransfer; 69 var dataTransfer = e.dataTransfer; 70 if ( 71 dataTransfer && 72 $.inArray('Files', dataTransfer.types) !== -1 && 73 this._trigger(type, $.Event(type, { delegatedEvent: e })) !== false 74 ) { 75 e.preventDefault(); 76 if (isDragOver) { 77 dataTransfer.dropEffect = 'copy'; 78 } 79 } 80 }; 81 } 82 83 // The fileupload widget listens for change events on file input fields defined 84 // via fileInput setting and paste or drop events of the given dropZone. 85 // In addition to the default jQuery Widget methods, the fileupload widget 86 // exposes the "add" and "send" methods, to add or directly send files using 87 // the fileupload API. 88 // By default, files added via file input selection, paste, drag & drop or 89 // "add" method are uploaded immediately, but it is possible to override 90 // the "add" callback option to queue file uploads. 91 $.widget('blueimp.fileupload', { 92 options: { 93 // The drop target element(s), by the default the complete document. 94 // Set to null to disable drag & drop support: 95 dropZone: $(document), 96 // The paste target element(s), by the default undefined. 97 // Set to a DOM node or jQuery object to enable file pasting: 98 pasteZone: undefined, 99 // The file input field(s), that are listened to for change events. 100 // If undefined, it is set to the file input fields inside 101 // of the widget element on plugin initialization. 102 // Set to null to disable the change listener. 103 fileInput: undefined, 104 // By default, the file input field is replaced with a clone after 105 // each input field change event. This is required for iframe transport 106 // queues and allows change events to be fired for the same file 107 // selection, but can be disabled by setting the following option to fal
107se: 108 replaceFileInput: true, 109 // The parameter name for the file form data (the request argument name). 110 // If undefined or empty, the name property of the file input field is 111 // used, or "files[]" if the file input name property is also empty, 112 // can be a string or an array of strings: 113 paramName: undefined, 114 // By default, each file of a selection is uploaded using an individual 115 // request for XHR type uploads. Set to false to upload file 116 // selections in one request each: 117 singleFileUploads: true, 118 // To limit the number of files uploaded with one XHR request, 119 // set the following option to an integer greater than 0: 120 limitMultiFileUploads: undefined, 121 // The following option limits the number of files uploaded with one 122 // XHR request to keep the request size under or equal to the defined 123 // limit in bytes: 124 limitMultiFileUploadSize: undefined, 125 // Multipart file uploads add a number of bytes to each uploaded file, 126 // therefore the following option adds an overhead for each file used 127 // in the limitMultiFileUploadSize configuration: 128 limitMultiFileUploadSizeOverhead: 512, 129 // Set the following option to true to issue all file upload requests 130 // in a sequential order: 131 sequentialUploads: false, 132 // To limit the number of concurrent uploads, 133 // set the following option to an integer greater than 0: 134 limitConcurrentUploads: undefined, 135 // Set the following option to true to force iframe transport uploads: 136 forceIframeTransport: false, 137 // Set the following option to the location of a redirect url on the 138 // origin server, for cross-domain iframe transport uploads: 139 redirect: undefined, 140 // The parameter name for the redirect url, sent as part of the form 141 // data and set to 'redirect' if this option is empty: 142 redirectParamName: undefined, 143 // Set the following option to the location of a postMessage window, 144 // to enable postMessage transport uploads: 145 postMessage: undefined, 146 // By default, XHR file uploads are sent as multipart/form-data. 147 // The iframe transport is always using multipart/form-data. 148 // Set to false to enable non-multipart XHR uploads: 149 multipart: true, 150 // To upload large files in smaller chunks, set the following option 151 // to a preferred maximum chunk size. If set to 0, null or undefined, 152 // or the browser does not support the required Blob API, files will 153 // be uploaded as a whole. 154 maxChunkSize: undefined, 155 // When a non-multipart upload or a chunked multipart upload has been 156 // aborted, this option can be used to resume the upload by setting 157 // it to the size of the already uploaded bytes. This option is most 158 // useful when modifying the options object inside of the "add" or 159 // "send" callbacks, as the options are cloned for each file upload. 160 uploadedBytes: undefined, 161 // By default, failed (abort or error) file uploads are removed from the 162 // global progress calculation. Set the following option to false to 163 // prevent recalculating the global progress data: 164 recalculateProgress: true, 165 // Interval in milliseconds to calculate and trigger progress events: 166 progressInterval: 100, 167 // Interval in milliseconds to calculate progress bitrate: 168 bitrateInterval: 500, 169 // By default, uploads are started automatically when adding files: 170 autoUpload: true, 171 // By default, duplicate file names are expected to be handled on 172 // the server-side. If this is not possible (e.g. when uploading 173 // files directly to Amazon S3), the following option can be set to 174 // an empty object or an object mapping existing filenames, e.g.: 175 // { "image.jpg": true, "image (1).jpg": true } 176 // If it is set, all files will be uploaded with unique filenames, 177 // adding increasing number suffixes if necessary, e.g.: 178 // "image (2).jpg" 179 uniqueFilenames: undefined, 180 181 // Error and info messages: 182 messages: { 183 uploadedBytes: 'Uploaded bytes exceed file size' 184 }, 185
186 // Translation function, gets the message key to be translated 187 // and an object with context specific data as arguments: 188 i18n: function (message, context) { 189 // eslint-disable-next-line no-param-reassign 190 message = this.messages[message] || message.toString(); 191 if (context) { 192 $.each(context, function (key, value) { 193 // eslint-disable-next-line no-param-reassign 194 message = message.replace('{' + key + '}', value); 195 }); 196 } 197 return message; 198 }, 199 200 // Additional form data to be sent along with the file uploads can be set 201 // using this option, which accepts an array of objects with name and 202 // value properties, a function returning such an array, a FormData 203 // object (for XHR file uploads), or a simple object. 204 // The form of the first fileInput is given as parameter to the function: 205 formData: function (form) { 206 return form.serializeArray(); 207 }, 208 209 // The add callback is invoked as soon as files are added to the fileupload 210 // widget (via file input selection, drag & drop, paste or add API call). 211 // If the singleFileUploads option is enabled, this callback will be 212 // called once for each file in the selection for XHR file uploads, else 213 // once for each file selection. 214 // 215 // The upload starts when the submit method is invoked on the data parameter. 216 // The data object contains a files property holding the added files 217 // and allows you to override plugin options as well as define ajax settings. 218 // 219 // Listeners for this callback can also be bound the following way: 220 // .on('fileuploadadd', func); 221 // 222 // data.submit() returns a Promise object and allows to attach additional 223 // handlers using jQuery's Deferred callbacks: 224 // data.submit().done(func).fail(func).always(func); 225 add: function (e, data) { 226 if (e.isDefaultPrevented()) { 227 return false; 228 } 229 if ( 230 data.autoUpload || 231 (data.autoUpload !== false && 232 $(this).fileupload('option', 'autoUpload')) 233 ) { 234 data.process().done(function () { 235 data.submit(); 236 }); 237 } 238 }, 239 240 // Other callbacks: 241 242 // Callback for the submit event of each file upload: 243 // submit: function (e, data) {}, // .on('fileuploadsubmit', func); 244 245 // Callback for the start of each file upload request: 246 // send: function (e, data) {}, // .on('fileuploadsend', func); 247 248 // Callback for successful uploads: 249 // done: function (e, data) {}, // .on('fileuploaddone', func); 250 251 // Callback for failed (abort or error) uploads: 252 // fail: function (e, data) {}, // .on('fileuploadfail', func); 253 254 // Callback for completed (success, abort or error) requests: 255 // always: function (e, data) {}, // .on('fileuploadalways', func); 256 257 // Callback for upload progress events: 258 // progress: function (e, data) {}, // .on('fileuploadprogress', func); 259 260 // Callback for global upload progress events: 261 // progressall: function (e, data) {}, // .on('fileuploadprogressall', func); 262 263 // Callback for uploads start, equivalent to the global ajaxStart event: 264 // start: function (e) {}, // .on('fileuploadstart', func); 265 266 // Callback for uploads stop, equivalent to the global ajaxStop event: 267 // stop: function (e) {}, // .on('fileuploadstop', func); 268 269 // Callback for change events of the fileInput(s): 270 // change: function (e, data) {}, // .on('fileuploadchange', func); 271 272 // Callback for paste events to the pasteZone(s): 273 // paste: function (e, data) {}, // .on('fileuploadpaste', func); 274 275 // Callback for drop events of the dropZone(s): 276 // drop: function (e, data) {}, // .on('fileuploaddrop', func); 277 278 // Callback for dragover events of the dropZone(s): 279 // dragover: function (e) {}, // .on('fileuploaddragover', func); 280 281 // Callback before the start of each chunk upload request (before form data initialization): 282 // chunkbeforesend: function (e, data) {}, // .on('fileuploadchunkbeforesend', func); 283 284 // Callback for the start of each chunk upload request: 285 // chunksend: function (e, data) {}, // .on('fileuploadchunksend', func); 286 287 // Callback for successful chunk uploads: 288 // chunkdone: function (e, data) {}, // .on('fileuploadchunkdone', func); 289 290 // Callback for failed (abort or error) chunk uploads: 291 // chunkfail: function (e, data) {}, // .on('fileuploadchunkfail', func); 292 293 // Callback for completed (success, abort or error) chunk upload requests: 294 // chunkalways: function (e, data) {}, // .on('fileuploadchunkalways', func); 295 296 // The plugin options are used as settings object for the ajax calls. 297 // The following are jQuery ajax settings required for the file uploads: 298 processData: false, 299 contentType: false, 300 cache: false, 301 timeout: 0 302 }, 303 304 // jQuery versions before 1.8 require promise.pipe if the return value is 305 // used, as promise.then in older versions has a different behavior, see: 306 // https://blog.jquery.com/2012/08/09/jquery-1-8-released/ 307 // https://bugs.jquery.com/ticket/11010 308 // https://github.com/blueimp/jQuery-File-Upload/pull/3435 309 _promisePipe: (function () { 310 var parts = $.fn.jquery.split('.'); 311 return Number(parts[0]) > 1 || Number(parts[1]) > 7 ? 'then' : 'pipe'; 312 })(), 313 314 // A list of options that require reinitializing event listeners and/or 315 // special initialization code: 316 _specialOptions: [ 317 'fileInput', 318 'dropZone', 319 'pasteZone', 320 'multipart', 321 'forceIframeTransport' 322 ], 323 324 _blobSlice: 325 $.support.blobSlice && 326 function () { 327 var slice = this.slice || this.webkitSlice || this.mozSlice; 328 return slice.apply(this, arguments); 329 }, 330 331 _BitrateTimer: function () { 332 this.timestamp = Date.now ? Date.now() : new Date().getTime(); 333 this.loaded = 0; 334 this.bitrate = 0; 335 this.getBitrate = function (now, loaded, interval) { 336 var timeDiff = now - this.timestamp; 337 if (!this.bitrate || !interval || timeDiff > interval) { 338 this.bitrate = (loaded - this.loaded) * (1000 / timeDiff) * 8; 339 this.loaded = loaded; 340 this.timestamp = now; 341 } 342 return this.bitrate; 343 }; 344 }, 345 346 _isXHRUpload: function (options) { 347 return ( 348 !options.forceIframeTransport && 349 ((!options.multipart && $.support.xhrFileUpload) || 350 $.support.xhrFormDataFileUpload) 351 ); 352 }, 353 354 _getFormData: function (options) { 355 var formData; 356 if ($.type(options.formData) === 'function') { 357 return options.formData(options.form); 358 } 359 if ($.isArray(options.formData)) { 360 return options.formData; 361 } 362 if ($.type(options.formData) === 'object') { 363 formData = []; 364 $.each(options.formData, function (name, value) { 365 formData.push({ name: name, value: value }); 366 }); 367 return formData; 368 } 369 return []; 370 }, 371 372 _getTotal: function (files) { 373 var total = 0; 374 $.each(files, function (index, file) { 375 total += file.size || 1; 376 }); 377 return total; 378 }, 379 380 _initProgressObject: function (obj) { 381 var progress = { 382 loaded: 0, 383 total: 0, 384 bitrate: 0 385 }; 386 if (obj._progress) { 387 $.extend(obj._progress, progress); 388 } else { 389 obj._progress = progress; 390 } 391 }, 392 393 _initResponseObject: function (obj) { 394 var prop; 395 if (obj._response) { 396 for (prop in obj._response) { 397 if (Object.prototype.hasOwnProperty.call(obj._response, prop)) { 398 delete obj._response[prop]; 399 } 400 } 401 } else { 402 obj._response = {}; 403 } 404 }, 405 406 _onProgress: function (e, data) { 407 if (e.lengthComputable) { 408 var now = Date.now ? Date.now() : new Date().getTime(), 409 loaded; 410 if ( 411 data._time && 412 data.progressInterval && 413 now - data._time < data.progressInterval && 414 e.loaded !== e.total 415 ) { 416 return; 417 } 418 data._time = now; 419 loaded = 420 Math.floor( 421 (e.loaded / e.total) * (data.chunkSize || data._progress.total) 422 ) + (data.uploadedBytes || 0); 423 // Add the difference from the previously loaded state 424 // to the global loaded counter: 425 this._progress.loaded += loaded - data._progress.loaded; 426 this._progress.bitrate = this._bitrateTimer.getBitrate( 427 now, 428 this._progress.loaded, 429 data.bitrateInterval 430 ); 431 data._progress.loaded = data.loaded = loaded; 432 data._progress.bitrate = data.bitrate = data._bitrateTimer.getBitrate( 433 now, 434 loaded, 435 data.bitrateInterval 436 ); 437 // Trigger a custom progress event with a total data property set 438 // to the file size(s) of the current upload and a loaded data 439 // property calculated accordingly: 440 this._trigger( 441 'progress', 442 $.Event('progress', { delegatedEvent: e }), 443 data 444 ); 445 // Trigger a global progress event for all current file uploads, 446 // including ajax calls queued for sequential file uploads: 447 this._trigger( 448 'progressall', 449 $.Event('progressall', { delegatedEvent: e }), 450 this._progress 451 ); 452 } 453 }, 454 455 _initProgressListener: function (options) { 456 var that = this, 457 xhr = options.xhr ? options.xhr() : $.ajaxSettings.xhr(); 458 // Access to the native XHR object is required to add event listeners 459 // for the upload progress event: 460 if (xhr.upload) { 461 $(xhr.upload).on('progress', function (e) { 462 var oe = e.originalEvent; 463 // Make sure the progress event properties get copied over: 464 e.lengthComputable = oe.lengthComputable; 465 e.loaded = oe.loaded; 466 e.total = oe.total; 467 that._onProgress(e, options); 468 }); 469 options.xhr = function () { 470 return xhr; 471 }; 472 } 473 }, 474 475 _deinitProgressListener: function (options) { 476 var xhr = options.xhr ? options.xhr() : $.ajaxSettings.xhr(); 477 if (xhr.upload) { 478 $(xhr.upload).off('progress'); 479 } 480 }, 481 482 _isInstanceOf: function (type, obj) { 483 // Cross-frame instanceof check 484 return Object.prototype.toString.call(obj) === '[object ' + type + ']'; 485 }, 486 487 _getUniqueFilename: function (name, map) { 488 // eslint-disable-next-line no-param-reassign 489 name = String(name); 490 if (map[name]) { 491 // eslint-disable-next-line no-param-reassign 492 name = name.replace( 493 /(?: \(([\d]+)\))?(\.[^.]+)?$/, 494 function (_, p1, p2) { 495 var index = p1 ? Number(p1) + 1 : 1; 496 var ext = p2 || ''; 497 return ' (' + index + ')' + ext; 498 } 499 ); 500 return this._getUniqueFilename(name, map); 501 } 502 map[name] = true; 503 return name; 504 }, 505 506 _initXHRData: function (options) { 507 var that = this, 508 formData, 509 file = options.files[0], 510 // Ignore non-multipart setting if not supported:
511 multipart = options.multipart || !$.support.xhrFileUpload, 512 paramName = 513 $.type(options.paramName) === 'array' 514 ? options.paramName[0] 515 : options.paramName; 516 options.headers = $.extend({}, options.headers); 517 if (options.contentRange) { 518 options.headers['Content-Range'] = options.contentRange; 519 } 520 if (!multipart || options.blob || !this._isInstanceOf('File', file)) { 521 options.headers['Content-Disposition'] = 522 'attachment; filename="' + 523 encodeURI(file.uploadName || file.name) + 524 '"'; 525 } 526 if (!multipart) { 527 options.contentType = file.type || 'application/octet-stream'; 528 options.data = options.blob || file; 529 } else if ($.support.xhrFormDataFileUpload) { 530 if (options.postMessage) { 531 // window.postMessage does not allow sending FormData 532 // objects, so we just add the File/Blob objects to 533 // the formData array and let the postMessage window 534 // create the FormData object out of this array: 535 formData = this._getFormData(options); 536 if (options.blob) { 537 formData.push({ 538 name: paramName, 539 value: options.blob 540 }); 541 } else { 542 $.each(options.files, function (index, file) { 543 formData.push({ 544 name: 545 ($.type(options.paramName) === 'array' && 546 options.paramName[index]) || 547 paramName, 548 value: file 549 }); 550 }); 551 } 552 } else { 553 if (that._isInstanceOf('FormData', options.formData)) { 554 formData = options.formData; 555 } else { 556 formData = new FormData(); 557 $.each(this._getFormData(options), function (index, field) { 558 formData.append(field.name, field.value); 559 }); 560 } 561 if (options.blob) { 562 formData.append( 563 paramName, 564 options.blob, 565 file.uploadName || file.name 566 ); 567 } else { 568 $.each(options.files, function (index, file) { 569 // This check allows the tests to run with 570 // dummy objects: 571 if ( 572 that._isInstanceOf('File', file) || 573 that._isInstanceOf('Blob', file) 574 ) { 575 var fileName = file.uploadName || file.name; 576 if (options.uniqueFilenames) { 577 fileName = that._getUniqueFilename( 578 fileName, 579 options.uniqueFilenames 580 ); 581 } 582 formData.append( 583 ($.type(options.paramName) === 'array' && 584 options.paramName[index]) || 585 paramName, 586 file, 587 fileName 588 ); 589 } 590 }); 591 } 592 } 593 options.data = formData; 594 } 595 // Blob reference is not needed anymore, free memory: 596 options.blob = null; 597 }, 598 599 _initIframeSettings: function (options) { 600 var targetHost = $('<a></a>').prop('href', options.url).prop('host'); 601 // Setting the dataType to iframe enables the iframe transport: 602 options.dataType = 'iframe ' + (options.dataType || ''); 603 // The iframe transport accepts a serialized array as form data: 604 options.formData = this._getFormData(options); 605 // Add redirect url to form data on cross-domain uploads: 606 if (options.redirect && targetHost && targetHost !== location.host) { 607 options.formData.push({ 608 name: options.redirectParamName || 'redirect', 609 value: options.redirect 610 }); 611 } 612 }, 613 614 _initDataSettings: function (options) { 615 if (this._isXHRUpload(options)) { 616 if (!this._chunkedUpload(options, true)) { 617 if (!options.data) { 618 this._initXHRData(options); 619 } 620 this._initProgressListener(options); 621 } 622 if (options.postMessage) { 623 // Setting the dataType to postmessage enables the 624 // postMessage transport: 625 options.dataType = 'postmessage ' + (options.dataType || ''); 626 } 627 } else { 628 this._initIframeSettings(options); 629 } 630 }, 631 632 _getParamName: function (options) { 633 var fileInput = $(options.fileInput), 634 paramName = options.paramName; 635 if (!paramName) { 636 paramName = []; 637 fileInput.each(function () { 638 var input = $(this), 639 name = input.prop('name') || 'files[]', 640 i = (input.prop('files') || [1]).length; 641 while (i) { 642 paramName.push(name); 643 i -= 1; 644 } 645 }); 646 if (!paramName.length) { 647 paramName = [fileInput.prop('name') || 'files[]']; 648 } 649 } else if (!$.isArray(paramName)) { 650 paramName = [paramName]; 651 } 652 return paramName; 653 }, 654 655 _initFormSettings: function (options) { 656 // Retrieve missing options from the input field and the 657 // associated form, if available: 658 if (!options.form || !options.form.length) { 659 options.form = $(options.fileInput.prop('form')); 660 // If the given file input doesn't have an associated form, 661 // use the default widget file input's form: 662 if (!options.form.length) { 663 options.form = $(this.options.fileInput.prop('form')); 664 } 665 } 666 options.paramName = this._getParamName(options); 667 if (!options.url) { 668 options.url = options.form.prop('action') || location.href; 669 } 670 // The HTTP request method must be "POST" or "PUT": 671 options.type = ( 672 options.type || 673 ($.type(options.form.prop('method')) === 'string' && 674 options.form.prop('method')) || 675 '' 676 ).toUpperCase(); 677 if ( 678 options.type !== 'POST' && 679 options.type !== 'PUT' && 680 options.type !== 'PATCH' 681 ) { 682 options.type = 'POST'; 683 } 684 if (!options.formAcceptCharset) { 685 options.formAcceptCharset = options.form.attr('accept-charset'); 686 } 687 }, 688 689 _getAJAXSettings: function (data) { 690 var options = $.extend({}, this.options, data); 691 this._initFormSettings(options); 692 this._initDataSettings(options); 693 return options; 694 }, 695 696 // jQuery 1.6 doesn't provide .state(), 697 // while jQuery 1.8+ removed .isRejected() and .isResolved(): 698 _getDeferredState: function (deferred) { 699 if (deferred.state) { 700 return deferred.state(); 701 } 702 if (deferred.isResolved()) { 703 return 'resolved'; 704 } 705 if (deferred.isRejected()) { 706 return 'rejected'; 707 } 708 return 'pending'; 709 }, 710 711 // Maps jqXHR callbacks to the equivalent 712 // methods of the given Promise object: 713 _enhancePromise: function (promise) { 714 promise.success = promise.done; 715 promise.error = promise.fail; 716 promise.complete = promise.always; 717 return promise; 718 }, 719 720 // Creates and returns a Promise object enhanced with 721 // the jqXHR methods abort, success, error and complete:
722 _getXHRPromise: function (resolveOrReject, context, args) { 723 var dfd = $.Deferred(), 724 promise = dfd.promise(); 725 // eslint-disable-next-line no-param-reassign 726 context = context || this.options.context || promise; 727 if (resolveOrReject === true) { 728 dfd.resolveWith(context, args); 729 } else if (resolveOrReject === false) { 730 dfd.rejectWith(context, args); 731 } 732 promise.abort = dfd.promise; 733 return this._enhancePromise(promise); 734 }, 735 736 // Adds convenience methods to the data callback argument: 737 _addConvenienceMethods: function (e, data) { 738 var that = this, 739 getPromise = function (args) { 740 return $.Deferred().resolveWith(that, args).promise(); 741 }; 742 data.process = function (resolveFunc, rejectFunc) { 743 if (resolveFunc || rejectFunc) { 744 data._processQueue = this._processQueue = (this._processQueue || 745 getPromise([this])) 746 [that._promisePipe](function () { 747 if (data.errorThrown) { 748 return $.Deferred().rejectWith(that, [data]).promise(); 749 } 750 return getPromise(arguments); 751 }) 752 [that._promisePipe](resolveFunc, rejectFunc); 753 } 754 return this._processQueue || getPromise([this]); 755 }; 756 data.submit = function () { 757 if (this.state() !== 'pending') { 758 data.jqXHR = this.jqXHR = 759 that._trigger( 760 'submit', 761 $.Event('submit', { delegatedEvent: e }), 762 this 763 ) !== false && that._onSend(e, this); 764 } 765 return this.jqXHR || that._getXHRPromise(); 766 }; 767 data.abort = function () { 768 if (this.jqXHR) { 769 return this.jqXHR.abort(); 770 } 771 this.errorThrown = 'abort'; 772 that._trigger('fail', null, this); 773 return that._getXHRPromise(false); 774 }; 775 data.state = function () { 776 if (this.jqXHR) { 777 return that._getDeferredState(this.jqXHR); 778 } 779 if (this._processQueue) { 780 return that._getDeferredState(this._processQueue); 781 } 782 }; 783 data.processing = function () { 784 return ( 785 !this.jqXHR && 786 this._processQueue && 787 that._getDeferredState(this._processQueue) === 'pending' 788 ); 789 }; 790 data.progress = function () { 791 return this._progress; 792 }; 793 data.response = function () { 794 return this._response; 795 }; 796 }, 797 798 // Parses the Range header from the server response 799 // and returns the uploaded bytes: 800 _getUploadedBytes: function (jqXHR) { 801 var range = jqXHR.getResponseHeader('Range'), 802 parts = range && range.split('-'), 803 upperBytesPos = parts && parts.length > 1 && parseInt(parts[1], 10); 804 return upperBytesPos && upperBytesPos + 1; 805 }, 806 807 // Uploads a file in multiple, sequential requests 808 // by splitting the file up in multiple blob chunks. 809 // If the second parameter is true, only tests if the file 810 // should be uploaded in chunks, but does not invoke any 811 // upload requests: 812 _chunkedUpload: function (options, testOnly) { 813 options.uploadedBytes = options.uploadedBytes || 0; 814 var that = this, 815 file = options.files[0], 816 fs = file.size, 817 ub = options.uploadedBytes, 818 mcs = options.maxChunkSize || fs, 819 slice = this._blobSlice, 820 dfd = $.Deferred(), 821 promise = dfd.promise(), 822 jqXHR, 823 upload; 824 if ( 825 !( 826 this._isXHRUpload(options) && 827 slice && 828 (ub || ($.type(mcs) === 'function' ? mcs(options) : mcs) < fs) 829 ) || 830 options.data 831 ) { 832 return false; 833 } 834 if (testOnly) { 835 return true; 836 } 837 if (ub >= fs) { 838 file.error = options.i18n('uploadedBytes'); 839 return this._getXHRPromise(false, options.context, [ 840 null, 841 'error', 842 file.error 843 ]); 844 } 845 // The chunk upload method: 846 upload = function () { 847 // Clone the options object for each chunk upload: 848 var o = $.extend({}, options), 849 currentLoaded = o._progress.loaded; 850 o.blob = slice.call( 851 file, 852 ub, 853 ub + ($.type(mcs) === 'function' ? mcs(o) : mcs), 854 file.type 855 ); 856 // Store the current chunk size, as the blob itself 857 // will be dereferenced after data processing: 858 o.chunkSize = o.blob.size; 859 // Expose the chunk bytes position range: 860 o.contentRange = 861 'bytes ' + ub + '-' + (ub + o.chunkSize - 1) + '/' + fs; 862 // Trigger chunkbeforesend to allow form data to be updated for this chunk 863 that._trigger('chunkbeforesend', null, o); 864 // Process the upload data (the blob and potential form data): 865 that._initXHRData(o); 866 // Add progress listeners for this chunk upload: 867 that._initProgressListener(o); 868 jqXHR = (
869 (that._trigger('chunksend', null, o) !== false && $.ajax(o)) || 870 that._getXHRPromise(false, o.context) 871 ) 872 .done(function (result, textStatus, jqXHR) { 873 ub = that._getUploadedBytes(jqXHR) || ub + o.chunkSize; 874 // Create a progress event if no final progress event 875 // with loaded equaling total has been triggered 876 // for this chunk: 877 if (currentLoaded + o.chunkSize - o._progress.loaded) { 878 that._onProgress( 879 $.Event('progress', { 880 lengthComputable: true, 881 loaded: ub - o.uploadedBytes, 882 total: ub - o.uploadedBytes 883 }), 884 o 885 ); 886 } 887 options.uploadedBytes = o.uploadedBytes = ub; 888 o.result = result; 889 o.textStatus = textStatus; 890 o.jqXHR = jqXHR; 891 that._trigger('chunkdone', null, o); 892 that._trigger('chunkalways', null, o); 893 if (ub < fs) { 894 // File upload not yet complete, 895 // continue with the next chunk: 896 upload(); 897 } else { 898 dfd.resolveWith(o.context, [result, textStatus, jqXHR]); 899 } 900 }) 901 .fail(function (jqXHR, textStatus, errorThrown) { 902 o.jqXHR = jqXHR; 903 o.textStatus = textStatus; 904 o.errorThrown = errorThrown; 905 that._trigger('chunkfail', null, o); 906 that._trigger('chunkalways', null, o); 907 dfd.rejectWith(o.context, [jqXHR, textStatus, errorThrown]); 908 }) 909 .always(function () { 910 that._deinitProgressListener(o); 911 }); 912 }; 913 this._enhancePromise(promise); 914 promise.abort = function () { 915 return jqXHR.abort(); 916 }; 917 upload(); 918 return promise; 919 }, 920 921 _beforeSend: function (e, data) { 922 if (this._active === 0) { 923 // the start callback is triggered when an upload starts 924 // and no other uploads are currently running, 925 // equivalent to the global ajaxStart event: 926 this._trigger('start'); 927 // Set timer for global bitrate progress calculation: 928 this._bitrateTimer = new this._BitrateTimer(); 929 // Reset the global progress values: 930 this._progress.loaded = this._progress.total = 0; 931 this._progress.bitrate = 0; 932 } 933 // Make sure the container objects for the .response() and 934 // .progress() methods on the data object are available 935 // and reset to their initial state: 936 this._initResponseObject(data); 937 this._initProgressObject(data); 938 data._progress.loaded = data.loaded = data.uploadedBytes || 0; 939 data._progress.total = data.total = this._getTotal(data.files) || 1; 940 data._progress.bitrate = data.bitrate = 0; 941 this._active += 1; 942 // Initialize the global progress values: 943 this._progress.loaded += data.loaded; 944 this._progress.total += data.total; 945 }, 946 947 _onDone: function (result, textStatus, jqXHR, options) { 948 var total = options._progress.total, 949 response = options._response; 950 if (options._progress.loaded < total) { 951 // Create a progress event if no final progress event 952 // with loaded equaling total has been triggered: 953 this._onProgress( 954 $.Event('progress', { 955 lengthComputable: true, 956 loaded: total, 957 total: total 958 }), 959 options 960 ); 961 } 962 response.result = options.result = result; 963 response.textStatus = options.textStatus = textStatus; 964 response.jqXHR = options.jqXHR = jqXHR; 965 this._trigger('done', null, options); 966 }, 967 968 _onFail: function (jqXHR, textStatus, errorThrown, options) { 969 var response = options._response; 970 if (options.recalculateProgress) { 971 // Remove the failed (error or abort) file upload from 972 // the global progress calculation: 973 this._progress.loaded -= options._progress.loaded; 974 this._progress.total -= options._progress.total; 975 } 976 response.jqXHR = options.jqXHR = jqXHR; 977 response.textStatus = options.textStatus = textStatus; 978 response.errorThrown = options.errorThrown = errorThrown; 979 this._trigger('fail', null, options); 980 }, 981
982 _onAlways: function (jqXHRorResult, textStatus, jqXHRorError, options) { 983 // jqXHRorResult, textStatus and jqXHRorError are added to the 984 // options object via done and fail callbacks 985 this._trigger('always', null, options); 986 }, 987 988 _onSend: function (e, data) { 989 if (!data.submit) { 990 this._addConvenienceMethods(e, data); 991 } 992 var that = this, 993 jqXHR, 994 aborted, 995 slot, 996 pipe, 997 options = that._getAJAXSettings(data), 998 send = function () { 999 that._sending += 1; 1000 // Set timer for bitrate progress calculation: 1001 options._bitrateTimer = new that._BitrateTimer(); 1002 jqXHR = 1003 jqXHR || 1004 ( 1005 ((aborted || 1006 that._trigger( 1007 'send', 1008 $.Event('send', { delegatedEvent: e }), 1009 options 1010 ) === false) && 1011 that._getXHRPromise(false, options.context, aborted)) || 1012 that._chunkedUpload(options) || 1013 $.ajax(options) 1014 ) 1015 .done(function (result, textStatus, jqXHR) { 1016 that._onDone(result, textStatus, jqXHR, options); 1017 }) 1018 .fail(function (jqXHR, textStatus, errorThrown) { 1019 that._onFail(jqXHR, textStatus, errorThrown, options); 1020 }) 1021 .always(function (jqXHRorResult, textStatus, jqXHRorError) { 1022 that._deinitProgressListener(options); 1023 that._onAlways( 1024 jqXHRorResult, 1025 textStatus, 1026 jqXHRorError, 1027 options 1028 ); 1029 that._sending -= 1; 1030 that._active -= 1; 1031 if ( 1032 options.limitConcurrentUploads && 1033 options.limitConcurrentUploads > that._sending 1034 ) { 1035 // Start the next queued upload, 1036 // that has not been aborted: 1037 var nextSlot = that._slots.shift(); 1038 while (nextSlot) { 1039 if (that._getDeferredState(nextSlot) === 'pending') { 1040 nextSlot.resolve(); 1041 break; 1042 } 1043 nextSlot = that._slots.shift(); 1044 } 1045 } 1046 if (that._active === 0) { 1047 // The stop callback is triggered when all uploads have 1048 // been completed, equivalent to the global ajaxStop event: 1049 that._trigger('stop'); 1050 } 1051 }); 1052 return jqXHR; 1053 }; 1054 this._beforeSend(e, options); 1055 if ( 1056 this.options.sequentialUploads || 1057 (this.options.limitConcurrentUploads && 1058 this.options.limitConcurrentUploads <= this._sending) 1059 ) { 1060 if (this.options.limitConcurrentUploads > 1) { 1061 slot = $.Deferred(); 1062 this._slots.push(slot); 1063 pipe = slot[that._promisePipe](send); 1064 } else { 1065 this._sequence = this._sequence[that._promisePipe](send, send); 1066 pipe = this._sequence; 1067 } 1068 // Return the piped Promise object, enhanced with an abort method, 1069 // which is delegated to the jqXHR object of the current upload, 1070 // and jqXHR callbacks mapped to the equivalent Promise methods: 1071 pipe.abort = function () { 1072 aborted = [undefined, 'abort', 'abort']; 1073 if (!jqXHR) { 1074 if (slot) { 1075 slot.rejectWith(options.context, aborted); 1076 } 1077 return send(); 1078 } 1079 return jqXHR.abort(); 1080 }; 1081 return this._enhancePromise(pipe); 1082 } 1083 return send(); 1084 }, 1085 1086 _onAdd: function (e, data) { 1087 var that = this, 1088 result = true, 1089 options = $.extend({}, this.options, data), 1090 files = data.files, 1091 filesLength = files.length, 1092 limit = options.limitMultiFileUploads, 1093 limitSize = options.limitMultiFileUploadSize, 1094 overhead = options.limitMultiFileUploadSizeOverhead, 1095 batchSize = 0, 1096 paramName = this._getParamName(options), 1097 paramNameSet, 1098 paramNameSlice, 1099 fileSet, 1100 i, 1101 j = 0; 1102 if (!filesLength) { 1103 return false;
1104 } 1105 if (limitSize && files[0].size === undefined) { 1106 limitSize = undefined; 1107 } 1108 if ( 1109 !(options.singleFileUploads || limit || limitSize) || 1110 !this._isXHRUpload(options) 1111 ) { 1112 fileSet = [files]; 1113 paramNameSet = [paramName]; 1114 } else if (!(options.singleFileUploads || limitSize) && limit) { 1115 fileSet = []; 1116 paramNameSet = []; 1117 for (i = 0; i < filesLength; i += limit) { 1118 fileSet.push(files.slice(i, i + limit)); 1119 paramNameSlice = paramName.slice(i, i + limit); 1120 if (!paramNameSlice.length) { 1121 paramNameSlice = paramName; 1122 } 1123 paramNameSet.push(paramNameSlice); 1124 } 1125 } else if (!options.singleFileUploads && limitSize) { 1126 fileSet = []; 1127 paramNameSet = []; 1128 for (i = 0; i < filesLength; i = i + 1) { 1129 batchSize += files[i].size + overhead; 1130 if ( 1131 i + 1 === filesLength || 1132 batchSize + files[i + 1].size + overhead > limitSize || 1133 (limit && i + 1 - j >= limit) 1134 ) { 1135 fileSet.push(files.slice(j, i + 1)); 1136 paramNameSlice = paramName.slice(j, i + 1); 1137 if (!paramNameSlice.length) { 1138 paramNameSlice = paramName; 1139 } 1140 paramNameSet.push(paramNameSlice); 1141 j = i + 1; 1142 batchSize = 0; 1143 } 1144 } 1145 } else { 1146 paramNameSet = paramName; 1147 } 1148 data.originalFiles = files; 1149 $.each(fileSet || files, function (index, element) { 1150 var newData = $.extend({}, data); 1151 newData.files = fileSet ? element : [element]; 1152 newData.paramName = paramNameSet[index]; 1153 that._initResponseObject(newData); 1154 that._initProgressObject(newData); 1155 that._addConvenienceMethods(e, newData); 1156 result = that._trigger( 1157 'add', 1158 $.Event('add', { delegatedEvent: e }), 1159 newData 1160 ); 1161 return result; 1162 }); 1163 return result; 1164 }, 1165 1166 _replaceFileInput: function (data) { 1167 var input = data.fileInput, 1168 inputClone = input.clone(true), 1169 restoreFocus = input.is(document.activeElement); 1170 // Add a reference for the new cloned file input to the data argument: 1171 data.fileInputClone = inputClone; 1172 $('<form></form>').append(inputClone)[0].reset(); 1173 // Detaching allows to insert the fileInput on another form 1174 // without losing the file input value: 1175 input.after(inputClone).detach(); 1176 // If the fileInput had focus before it was detached, 1177 // restore focus to the inputClone. 1178 if (restoreFocus) { 1179 inputClone.trigger('focus'); 1180 } 1181 // Avoid memory leaks with the detached file input: 1182 $.cleanData(input.off('remove')); 1183 // Replace the original file input element in the fileInput 1184 // elements set with the clone, which has been copied including 1185 // event handlers: 1186 this.options.fileInput = this.options.fileInput.map(function (i, el) { 1187 if (el === input[0]) { 1188 return inputClone[0]; 1189 } 1190 return el; 1191 }); 1192 // If the widget has been initialized on the file input itself, 1193 // override this.element with the file input clone: 1194 if (input[0] === this.element[0]) { 1195 this.element = inputClone; 1196 } 1197 }, 1198 1199 _handleFileTreeEntry: function (entry, path) { 1200 var that = this, 1201 dfd = $.Deferred(), 1202 entries = [], 1203 dirReader, 1204 errorHandler = function (e) { 1205 if (e && !e.entry) { 1206 e.entry = entry; 1207 } 1208 // Since $.when returns immediately if one 1209 // Deferred is rejected, we use resolve instead. 1210 // This allows valid files and invalid items 1211 // to be returned together in one set: 1212 dfd.resolve([e]); 1213 }, 1214 successHandler = function (entries) { 1215 that 1216 ._handleFileTreeEntries(entries, path + entry.name + '/') 1217 .done(function (files) { 1218 dfd.resolve(files); 1219 }) 1220 .fail(errorHandler); 1221 }, 1222 readEntries = function () { 1223 dirReader.readEntries(function (results) { 1224 if (!results.length) { 1225 successHandler(entries); 1226 } else {
1227 entries = entries.concat(results); 1228 readEntries(); 1229 } 1230 }, errorHandler); 1231 }; 1232 // eslint-disable-next-line no-param-reassign 1233 path = path || ''; 1234 if (entry.isFile) { 1235 if (entry._file) { 1236 // Workaround for Chrome bug #149735 1237 entry._file.relativePath = path; 1238 dfd.resolve(entry._file); 1239 } else { 1240 entry.file(function (file) { 1241 file.relativePath = path; 1242 dfd.resolve(file); 1243 }, errorHandler); 1244 } 1245 } else if (entry.isDirectory) { 1246 dirReader = entry.createReader(); 1247 readEntries(); 1248 } else { 1249 // Return an empty list for file system items 1250 // other than files or directories: 1251 dfd.resolve([]); 1252 } 1253 return dfd.promise(); 1254 }, 1255 1256 _handleFileTreeEntries: function (entries, path) { 1257 var that = this; 1258 return $.when 1259 .apply( 1260 $, 1261 $.map(entries, function (entry) { 1262 return that._handleFileTreeEntry(entry, path); 1263 }) 1264 ) 1265 [this._promisePipe](function () { 1266 return Array.prototype.concat.apply([], arguments); 1267 }); 1268 }, 1269 1270 _getDroppedFiles: function (dataTransfer) { 1271 // eslint-disable-next-line no-param-reassign 1272 dataTransfer = dataTransfer || {}; 1273 var items = dataTransfer.items; 1274 if ( 1275 items && 1276 items.length && 1277 (items[0].webkitGetAsEntry || items[0].getAsEntry) 1278 ) { 1279 return this._handleFileTreeEntries( 1280 $.map(items, function (item) { 1281 var entry; 1282 if (item.webkitGetAsEntry) { 1283 entry = item.webkitGetAsEntry(); 1284 if (entry) { 1285 // Workaround for Chrome bug #149735: 1286 entry._file = item.getAsFile(); 1287 } 1288 return entry; 1289 } 1290 return item.getAsEntry(); 1291 }) 1292 ); 1293 } 1294 return $.Deferred().resolve($.makeArray(dataTransfer.files)).promise(); 1295 }, 1296 1297 _getSingleFileInputFiles: function (fileInput) { 1298 // eslint-disable-next-line no-param-reassign 1299 fileInput = $(fileInput); 1300 var entries = fileInput.prop('entries'), 1301 files, 1302 value; 1303 if (entries && entries.length) { 1304 return this._handleFileTreeEntries(entries); 1305 } 1306 files = $.makeArray(fileInput.prop('files')); 1307 if (!files.length) { 1308 value = fileInput.prop('value'); 1309 if (!value) { 1310 return $.Deferred().resolve([]).promise(); 1311 } 1312 // If the files property is not available, the browser does not 1313 // support the File API and we add a pseudo File object with 1314 // the input value as name with path information removed: 1315 files = [{ name: value.replace(/^.*\\/, '') }]; 1316 } else if (files[0].name === undefined && files[0].fileName) { 1317 // File normalization for Safari 4 and Firefox 3: 1318 $.each(files, function (index, file) { 1319 file.name = file.fileName; 1320 file.size = file.fileSize; 1321 }); 1322 } 1323 return $.Deferred().resolve(files).promise(); 1324 }, 1325 1326 _getFileInputFiles: function (fileInput) { 1327 if (!(fileInput instanceof $) || fileInput.length === 1) { 1328 return this._getSingleFileInputFiles(fileInput); 1329 } 1330 return $.when 1331 .apply($, $.map(fileInput, this._getSingleFileInputFiles)) 1332 [this._promisePipe](function () { 1333 return Array.prototype.concat.apply([], arguments); 1334 }); 1335 }, 1336 1337 _onChange: function (e) { 1338 var that = this, 1339 data = { 1340 fileInput: $(e.target), 1341 form: $(e.target.form) 1342 }; 1343 this._getFileInputFiles(data.fileInput).always(function (files) { 1344 data.files = files; 1345 if (that.options.replaceFileInput) { 1346 that._replaceFileInput(data); 1347 } 1348 if ( 1349 that._trigger( 1350 'change', 1351 $.Event('change', { delegatedEvent: e }), 1352 data 1353 ) !== false 1354 ) { 1355 that._onAdd(e, data); 1356 } 1357 }); 1358 }, 1359 1360 _onPaste: function (e) { 1361 var items = 1362 e.originalEvent && 1363 e.originalEvent.clipboardData && 1364 e.originalEvent.clipboardData.items, 1365 data = { files: [] }; 1366 if (items && items.length) { 1367 $.each(items, function (index, item) { 1368 var file = item.getAsFile && item.getAsFile(); 1369 if (file) { 1370 data.files.push(file); 1371 } 1372 }); 1373 if ( 1374 this._trigger( 1375 'paste', 1376 $.Event('paste', { delegatedEvent: e }), 1377 data 1378 ) !== false 1379 ) { 1380 this._onAdd(e, data); 1381 } 1382 } 1383 }, 1384 1385 _onDrop: function (e) { 1386 e.dataTransfer = e.originalEvent && e.originalEvent.dataTransfer; 1387 var that = this, 1388 dataTransfer = e.dataTransfer, 1389 data = {}; 1390 if (dataTransfer && dataTransfer.files && dataTransfer.files.length) { 1391 e.preventDefault(); 1392 this._getDroppedFiles(dataTransfer).always(function (files) { 1393 data.files = files; 1394 if ( 1395 that._trigger( 1396 'drop', 1397 $.Event('drop', { delegatedEvent: e }), 1398 data 1399 ) !== false 1400 ) { 1401 that._onAdd(e, data); 1402 } 1403 }); 1404 } 1405 }, 1406 1407 _onDragOver: getDragHandler('dragover'), 1408 1409 _onDragEnter: getDragHandler('dragenter'), 1410 1411 _onDragLeave: getDragHandler('dragleave'), 1412 1413 _initEventHandlers: function () { 1414 if (this._isXHRUpload(this.options)) { 1415 this._on(this.options.dropZone, { 1416 dragover: this._onDragOver, 1417 drop: this._onDrop, 1418 // event.preventDefault() on dragenter is required for IE10+: 1419 dragenter: this._onDragEnter,
1420 // dragleave is not required, but added for completeness: 1421 dragleave: this._onDragLeave 1422 }); 1423 this._on(this.options.pasteZone, { 1424 paste: this._onPaste 1425 }); 1426 } 1427 if ($.support.fileInput) { 1428 this._on(this.options.fileInput, { 1429 change: this._onChange 1430 }); 1431 } 1432 }, 1433 1434 _destroyEventHandlers: function () { 1435 this._off(this.options.dropZone, 'dragenter dragleave dragover drop'); 1436 this._off(this.options.pasteZone, 'paste'); 1437 this._off(this.options.fileInput, 'change'); 1438 }, 1439 1440 _destroy: function () { 1441 this._destroyEventHandlers(); 1442 }, 1443 1444 _setOption: function (key, value) { 1445 var reinit = $.inArray(key, this._specialOptions) !== -1; 1446 if (reinit) { 1447 this._destroyEventHandlers(); 1448 } 1449 this._super(key, value); 1450 if (reinit) { 1451 this._initSpecialOptions(); 1452 this._initEventHandlers(); 1453 } 1454 }, 1455 1456 _initSpecialOptions: function () { 1457 var options = this.options; 1458 if (options.fileInput === undefined) { 1459 options.fileInput = this.element.is('input[type="file"]') 1460 ? this.element 1461 : this.element.find('input[type="file"]'); 1462 } else if (!(options.fileInput instanceof $)) { 1463 options.fileInput = $(options.fileInput); 1464 } 1465 if (!(options.dropZone instanceof $)) { 1466 options.dropZone = $(options.dropZone); 1467 } 1468 if (!(options.pasteZone instanceof $)) { 1469 options.pasteZone = $(options.pasteZone); 1470 } 1471 }, 1472 1473 _getRegExp: function (str) { 1474 var parts = str.split('/'), 1475 modifiers = parts.pop(); 1476 parts.shift(); 1477 return new RegExp(parts.join('/'), modifiers); 1478 }, 1479 1480 _isRegExpOption: function (key, value) { 1481 return ( 1482 key !== 'url' && 1483 $.type(value) === 'string' && 1484 /^\/.*\/[igm]{0,3}$/.test(value) 1485 ); 1486 }, 1487 1488 _initDataAttributes: function () { 1489 var that = this, 1490 options = this.options, 1491 data = this.element.data(); 1492 // Initialize options set via HTML5 data-attributes: 1493 $.each(this.element[0].attributes, function (index, attr) { 1494 var key = attr.name.toLowerCase(), 1495 value; 1496 if (/^data-/.test(key)) { 1497 // Convert hyphen-ated key to camelCase: 1498 key = key.slice(5).replace(/-[a-z]/g, function (str) { 1499 return str.charAt(1).toUpperCase(); 1500 }); 1501 value = data[key]; 1502 if (that._isRegExpOption(key, value)) { 1503 value = that._getRegExp(value); 1504 } 1505 options[key] = value; 1506 } 1507 }); 1508 }, 1509 1510 _create: function () { 1511 this._initDataAttributes(); 1512 this._initSpecialOptions(); 1513 this._slots = []; 1514 this._sequence = this._getXHRPromise(true); 1515 this._sending = this._active = 0; 1516 this._initProgressObject(this); 1517 this._initEventHandlers(); 1518 }, 1519 1520 // This method is exposed to the widget API and allows to query 1521 // the number of active uploads: 1522 active: function () { 1523 return this._active; 1524 }, 1525 1526 // This method is exposed to the widget API and allows to query 1527 // the widget upload progress. 1528 // It returns an object with loaded, total and bitrate properties 1529 // for the running uploads: 1530 progress: function () { 1531 return this._progress; 1532 }, 1533 1534 // This method is exposed to the widget API and allows adding files 1535 // using the fileupload API. The data parameter accepts an object which 1536 // must have a files property and can contain additional options: 1537 // .fileupload('add', {files: filesList}); 1538 add: function (data) { 1539 var that = this; 1540 if (!data || this.options.disabled) { 1541 return; 1542 } 1543 if (data.fileInput && !data.files) { 1544 this._getFileInputFiles(data.fileInput).always(function (files) { 1545 data.files = files; 1546 that._onAdd(null, data); 1547 }); 1548 } else { 1549 data.files = $.makeArray(data.files); 1550 this._onAdd(null, data); 1551 } 1552 }, 1553 1554 // This method is exposed to the widget API and allows sending files 1555 // using the fileupload API. The data parameter accepts an object which 1556 // must have a files or fileInput property and can contain additional options: 1557 // .fileupload('send', {files: filesList}); 1558 // The method returns a Promise object for the file upload call. 1559 send: function (data) { 1560 if (data && !this.options.disabled) { 1561 if (data.fileInput && !data.files) { 1562 var that = this, 1563 dfd = $.Deferred(), 1564 promise = dfd.promise(), 1565 jqXHR, 1566 aborted; 1567 promise.abort = function () { 1568 aborted = true; 1569 if (jqXHR) { 1570 return jqXHR.abort(); 1571 } 1572 dfd.reject(null, 'abort', 'abort'); 1573 return promise; 1574 }; 1575 this._getFileInputFiles(data.fileInput).always(function (files) { 1576 if (aborted) { 1577 return; 1578 } 1579 if (!files.length) { 1580 dfd.reject(); 1581 return; 1582 } 1583 data.files = files; 1584 jqXHR = that._onSend(null, data); 1585 jqXHR.then( 1586 function (result, textStatus, jqXHR) { 1587 dfd.resolve(result, textStatus, jqXHR); 1588 }, 1589 function (jqXHR, textStatus, errorThrown) { 1590 dfd.reject(jqXHR, textStatus, errorThrown); 1591 } 1592 ); 1593 }); 1594 return this._enhancePromise(promise); 1595 } 1596 data.files = $.makeArray(data.files); 1597 if (data.files.length) { 1598 return this._onSend(null, data); 1599 } 1600 } 1601 return this._getXHRPromise(false, data && data.context); 1602 } 1603 }); 1604});
Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.