1/* 2 * jQuery File Upload Plugin 5.42.2 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 * http://www.opensource.org/licenses/MIT 10 */ 11 12/* jshint nomen:false */ 13/* global define, require, window, document, location, Blob, FormData */ 14 15(function (factory) { 16 'use strict'; 17 if (typeof define === 'function' && define.amd) { 18 // Register as an anonymous AMD module: 19 define([ 20 'jquery', 21 'jquery.ui.widget' 22 ], factory); 23 } else if (typeof exports === 'object') { 24 // Node/CommonJS: 25 factory( 26 require('jquery'), 27 require('./vendor/jquery.ui.widget') 28 ); 29 } else { 30 // Browser globals: 31 factory(window.jQuery); 32 } 33}(function ($) { 34 'use strict'; 35 36 // Detect file input support, based on 37 // http://viljamis.com/blog/2012/file-upload-support-on-mobile/ 38 $.support.fileInput = !(new RegExp( 39 // Handle devices which give false positives for the feature detection: 40 '(Android (1\\.[0156]|2\\.[01]))' + 41 '|(Windows Phone (OS 7|8\\.0))|(XBLWP)|(ZuneWP)|(WPDesktop)' + 42 '|(w(eb)?OSBrowser)|(webOS)' + 43 '|(Kindle/(1\\.0|2\\.[05]|3\\.0))' 44 ).test(window.navigator.userAgent) || 45 // Feature detection for all other devices: 46 $('<input type="file">').prop('disabled')); 47 48 // The FileReader API is not actually used, but works as feature detection, 49 // as some Safari versions (5?) support XHR file uploads via the FormData API, 50 // but not non-multipart XHR file uploads. 51 // window.XMLHttpRequestUpload is not available on IE10, so we check for 52 // window.ProgressEvent instead to detect XHR2 file upload capability: 53 $.support.xhrFileUpload = !!(window.ProgressEvent && window.FileReader); 54 $.support.xhrFormDataFileUpload = !!window.FormData; 55 56 // Detect support for Blob slicing (required for chunked uploads): 57 $.support.blobSlice = window.Blob && (Blob.prototype.slice || 58 Blob.prototype.webkitSlice || Blob.prototype.mozSlice); 59 60 // Helper function to create drag handlers for dragover/dragenter/dragleave: 61 function getDragHandler(type) { 62 var isDragOver = type === 'dragover'; 63 return function (e) { 64 e.dataTransfer = e.originalEvent && e.originalEvent.dataTransfer; 65 var dataTransfer = e.dataTransfer; 66 if (dataTransfer && $.inArray('Files', dataTransfer.types) !== -1 && 67 this._trigger( 68 type, 69 $.Event(type, {delegatedEvent: e}) 70 ) !== false) { 71 e.preventDefault(); 72 if (isDragOver) { 73 dataTransfer.dropEffect = 'copy'; 74 } 75 } 76 }; 77 } 78 79 // The fileupload widget listens for change events on file input fields defined 80 // via fileInput setting and paste or drop events of the given dropZone. 81 // In addition to the default jQuery Widget methods, the fileupload widget 82 // exposes the "add" and "send" methods, to add or directly send files using 83 // the fileupload API. 84 // By default, files added via file input selection, paste, drag & drop or 85 // "add" method are uploaded immediately, but it is possible to override 86 // the "add" callback option to queue file uploads. 87 $.widget('blueimp.fileupload', { 88 89 options: { 90 // The drop target element(s), by the default the complete document. 91 // Set to null to disable drag & drop support: 92 dropZone: $(document), 93 // The paste target element(s), by the default undefined. 94 // Set to a DOM node or jQuery object to enable file pasting: 95 pasteZone: undefined, 96 // The file input field(s), that are listened to for change events. 97 // If undefined, it is set to the file input fields inside 98 // of the widget element on plugin initialization. 99 // Set to null to disable the change listener. 100 fileInput: undefined, 101 // By default, the file input field is replaced with a clone after 102 // each input field change event. This is required for iframe transport 103 // queues and allows change events to be fired for the same file 104 // selection, but can be disabled by setting the following option to fal
104se: 105 replaceFileInput: true, 106 // The parameter name for the file form data (the request argument name). 107 // If undefined or empty, the name property of the file input field is 108 // used, or "files[]" if the file input name property is also empty, 109 // can be a string or an array of strings: 110 paramName: undefined, 111 // By default, each file of a selection is uploaded using an individual 112 // request for XHR type uploads. Set to false to upload file 113 // selections in one request each: 114 singleFileUploads: true, 115 // To limit the number of files uploaded with one XHR request, 116 // set the following option to an integer greater than 0: 117 limitMultiFileUploads: 1, 118 // The following option limits the number of files uploaded with one 119 // XHR request to keep the request size under or equal to the defined 120 // limit in bytes: 121 limitMultiFileUploadSize: undefined, 122 // Multipart file uploads add a number of bytes to each uploaded file, 123 // therefore the following option adds an overhead for each file used 124 // in the limitMultiFileUploadSize configuration: 125 limitMultiFileUploadSizeOverhead: 512, 126 // Set the following option to true to issue all file upload requests 127 // in a sequential order: 128 sequentialUploads: true, 129 // To limit the number of concurrent uploads, 130 // set the following option to an integer greater than 0: 131 limitConcurrentUploads: 1, 132 // Set the following option to true to force iframe transport uploads: 133 forceIframeTransport: false, 134 // Set the following option to the location of a redirect url on the 135 // origin server, for cross-domain iframe transport uploads: 136 redirect: undefined, 137 // The parameter name for the redirect url, sent as part of the form 138 // data and set to 'redirect' if this option is empty: 139 redirectParamName: undefined, 140 // Set the following option to the location of a postMessage window, 141 // to enable postMessage transport uploads: 142 postMessage: undefined, 143 // By default, XHR file uploads are sent as multipart/form-data. 144 // The iframe transport is always using multipart/form-data. 145 // Set to false to enable non-multipart XHR uploads: 146 multipart: true, 147 // To upload large files in smaller chunks, set the following option 148 // to a preferred maximum chunk size. If set to 0, null or undefined, 149 // or the browser does not support the required Blob API, files will 150 // be uploaded as a whole. 151 maxChunkSize: undefined, 152 // When a non-multipart upload or a chunked multipart upload has been 153 // aborted, this option can be used to resume the upload by setting 154 // it to the size of the already uploaded bytes. This option is most 155 // useful when modifying the options object inside of the "add" or 156 // "send" callbacks, as the options are cloned for each file upload. 157 uploadedBytes: undefined, 158 // By default, failed (abort or error) file uploads are removed from the 159 // global progress calculation. Set the following option to false to 160 // prevent recalculating the global progress data: 161 recalculateProgress: true, 162 // Interval in milliseconds to calculate and trigger progress events: 163 progressInterval: 100, 164 // Interval in milliseconds to calculate progress bitrate: 165 bitrateInterval: 500, 166 // By default, uploads are started automatically when adding files: 167 autoUpload: true, 168 169 // Error and info messages: 170 messages: { 171 uploadedBytes: 'Uploaded bytes exceed file size' 172 }, 173
174 // Translation function, gets the message key to be translated 175 // and an object with context specific data as arguments: 176 i18n: function (message, context) { 177 message = this.messages[message] || message.toString(); 178 if (context) { 179 $.each(context, function (key, value) { 180 message = message.replace('{' + key + '}', value); 181 }); 182 } 183 return message; 184 }, 185 186 // Additional form data to be sent along with the file uploads can be set 187 // using this option, which accepts an array of objects with name and 188 // value properties, a function returning such an array, a FormData 189 // object (for XHR file uploads), or a simple object. 190 // The form of the first fileInput is given as parameter to the function: 191 formData: function (form) { 192 return form.serializeArray(); 193 }, 194 195 // The add callback is invoked as soon as files are added to the fileupload 196 // widget (via file input selection, drag & drop, paste or add API call). 197 // If the singleFileUploads option is enabled, this callback will be 198 // called once for each file in the selection for XHR file uploads, else 199 // once for each file selection. 200 // 201 // The upload starts when the submit method is invoked on the data parameter. 202 // The data object contains a files property holding the added files 203 // and allows you to override plugin options as well as define ajax settings. 204 // 205 // Listeners for this callback can also be bound the following way: 206 // .bind('fileuploadadd', func); 207 // 208 // data.submit() returns a Promise object and allows to attach additional 209 // handlers using jQuery's Deferred callbacks: 210 // data.submit().done(func).fail(func).always(func); 211 add: function (e, data) { 212 if (e.isDefaultPrevented()) { 213 return false; 214 } 215 if (data.autoUpload || (data.autoUpload !== false && 216 $(this).fileupload('option', 'autoUpload'))) { 217 data.process().done(function () { 218 data.submit(); 219 }); 220 } 221 }, 222 223 // Other callbacks: 224 225 // Callback for the submit event of each file upload: 226 // submit: function (e, data) {}, // .bind('fileuploadsubmit', func); 227 228 // Callback for the start of each file upload request: 229 // send: function (e, data) {}, // .bind('fileuploadsend', func); 230 231 // Callback for successful uploads: 232 // done: function (e, data) {}, // .bind('fileuploaddone', func); 233 234 // Callback for failed (abort or error) uploads: 235 // fail: function (e, data) {}, // .bind('fileuploadfail', func); 236 237 // Callback for completed (success, abort or error) requests: 238 // always: function (e, data) {}, // .bind('fileuploadalways', func); 239 240 // Callback for upload progress events: 241 // progress: function (e, data) {}, // .bind('fileuploadprogress', func); 242 243 // Callback for global upload progress events: 244 // progressall: function (e, data) {}, // .bind('fileuploadprogressall', func); 245 246 // Callback for uploads start, equivalent to the global ajaxStart event: 247 // start: function (e) {}, // .bind('fileuploadstart', func); 248 249 // Callback for uploads stop, equivalent to the global ajaxStop event: 250 // stop: function (e) {}, // .bind('fileuploadstop', func); 251 252 // Callback for change events of the fileInput(s): 253 // change: function (e, data) {}, // .bind('fileuploadchange', func); 254 255 // Callback for paste events to the pasteZone(s): 256 // paste: function (e, data) {}, // .bind('fileuploadpaste', func); 257 258 // Callback for drop events of the dropZone(s): 259 // drop: function (e, data) {}, // .bind('fileuploaddrop', func); 260 261 // Callback for dragover events of the dropZone(s): 262 // dragover: function (e) {}, // .bind('fileuploaddragover', func); 263 264 // Callback for the start of each chunk upload request: 265 // chunksend: function (e, data) {}, // .bind('fileuploadchunksend', func); 266 267 // Callback for successful chunk uploads: 268 // chunkdone: function (e, data) {}, // .bind('fileuploadchunkdone', func); 269 270 // Callback for failed (abort or error) chunk uploads: 271 // chunkfail: function (e, data) {}, // .bind('fileuploadchunkfail', func); 272 273 // Callback for completed (success, abort or error) chunk upload requests: 274 // chunkalways: function (e, data) {}, // .bind('fileuploadchunkalways', func); 275 276 // The plugin options are used as settings object for the ajax calls. 277 // The following are jQuery ajax settings required for the file uploads: 278 processData: false, 279 contentType: false, 280 cache: false 281 }, 282 283 // A list of options that require reinitializing event listeners and/or 284 // special initialization code: 285 _specialOptions: [ 286 'fileInput', 287 'dropZone', 288 'pasteZone', 289 'multipart', 290 'forceIframeTransport' 291 ], 292 293 _blobSlice: $.support.blobSlice && function () { 294 var slice = this.slice || this.webkitSlice || this.mozSlice; 295 return slice.apply(this, arguments); 296 }, 297 298 _BitrateTimer: function () { 299 this.timestamp = ((Date.now) ? Date.now() : (new Date()).getTime()); 300 this.loaded = 0; 301 this.bitrate = 0; 302 this.getBitrate = function (now, loaded, interval) { 303 var timeDiff = now - this.timestamp; 304 if (!this.bitrate || !interval || timeDiff > interval) { 305 this.bitrate = (loaded - this.loaded) * (1000 / timeDiff) * 8; 306 this.loaded = loaded; 307 this.timestamp = now; 308 } 309 return this.bitrate; 310 }; 311 }, 312 313 _isXHRUpload: function (options) { 314 return !options.forceIframeTransport && 315 ((!options.multipart && $.support.xhrFileUpload) || 316 $.support.xhrFormDataFileUpload); 317 }, 318 319 _getFormData: function (options) { 320 var formData; 321 if ($.type(options.formData) === 'function') { 322 return options.formData(options.form); 323 } 324 if ($.isArray(options.formData)) { 325 return options.formData; 326 } 327 if ($.type(options.formData) === 'object') { 328 formData = []; 329 $.each(options.formData, function (name, value) { 330 formData.push({name: name, value: value}); 331 }); 332 return formData; 333 } 334 return []; 335 }, 336 337 _getTotal: function (files) { 338 var total = 0; 339 $.each(files, function (index, file) { 340 total += file.size || 1; 341 }); 342 return total; 343 }, 344 345 _initProgressObject: function (obj) { 346 var progress = { 347 loaded: 0, 348 total: 0, 349 bitrate: 0 350 }; 351 if (obj._progress) { 352 $.extend(obj._progress, progress); 353 } else { 354 obj._progress = progress; 355 } 356 }, 357 358 _initResponseObject: function (obj) { 359 var prop; 360 if (obj._response) { 361 for (prop in obj._response) { 362 if (obj._response.hasOwnProperty(prop)) { 363 delete obj._response[prop]; 364 } 365 } 366 } else { 367 obj._response = {}; 368 } 369 }, 370 371 _onProgress: function (e, data) { 372 if (e.lengthComputable) { 373 var now = ((Date.now) ? Date.now() : (new Date()).getTime()), 374 loaded; 375 if (data._time && data.progressInterval && 376 (now - data._time < data.progressInterval) && 377 e.loaded !== e.total) { 378 return; 379 } 380 data._time = now; 381 loaded = Math.floor( 382 e.loaded / e.total * (data.chunkSize || data._progress.total) 383 ) + (data.uploadedBytes || 0); 384 // Add the difference from the previously loaded state 385 // to the global loaded counter: 386 this._progress.loaded += (loaded - data._progress.loaded); 387 this._progress.bitrate = this._bitrateTimer.getBitrate( 388 now, 389 this._progress.loaded, 390 data.bitrateInterval 391 ); 392 data._progress.loaded = data.loaded = loaded; 393 data._progress.bitrate = data.bitrate = data._bitrateTimer.getBitrate( 394 now, 395 loaded, 396 data.bitrateInterval 397 ); 398 // Trigger a custom progress event with a total data property set 399 // to the file size(s) of the current upload and a loaded data 400 // property calculated accordingly: 401 this._trigger( 402 'progress', 403 $.Event('progress', {delegatedEvent: e}), 404 data 405 ); 406 // Trigger a global progress event for all current file uploads, 407 // including ajax calls queued for sequential file uploads: 408 this._trigger( 409 'progressall', 410 $.Event('progressall', {delegatedEvent: e}), 411 this._progress 412 ); 413 } 414 }, 415 416 _initProgressListener: function (options) { 417 var that = this, 418 xhr = options.xhr ? options.xhr() : $.ajaxSettings.xhr(); 419 // Accesss to the native XHR object is required to add event listeners 420 // for the upload progress event: 421 if (xhr.upload) { 422 $(xhr.upload).bind('progress', function (e) { 423 var oe = e.originalEvent; 424 // Make sure the progress event properties get copied over: 425 e.lengthComputable = oe.lengthComputable; 426 e.loaded = oe.loaded; 427 e.total = oe.total; 428 that._onProgress(e, options); 429 }); 430 options.xhr = function () { 431 return xhr; 432 }; 433 } 434 }, 435 436 _isInstanceOf: function (type, obj) { 437 // Cross-frame instanceof check 438 return Object.prototype.toString.call(obj) === '[object ' + type + ']'; 439 }, 440 441 _initXHRData: function (options) { 442 var that = this, 443 formData, 444 file = options.files[0], 445 // Ignore non-multipart setting if not supported:
446 multipart = options.multipart || !$.support.xhrFileUpload, 447 paramName = $.type(options.paramName) === 'array' ? 448 options.paramName[0] : options.paramName; 449 options.headers = $.extend({}, options.headers); 450 if (options.contentRange) { 451 options.headers['Content-Range'] = options.contentRange; 452 } 453 if (!multipart || options.blob || !this._isInstanceOf('File', file)) { 454 options.headers['Content-Disposition'] = 'attachment; filename="' + 455 encodeURI(file.name) + '"'; 456 } 457 if (!multipart) { 458 options.contentType = file.type || 'application/octet-stream'; 459 options.data = options.blob || file; 460 } else if ($.support.xhrFormDataFileUpload) { 461 if (options.postMessage) { 462 // window.postMessage does not allow sending FormData 463 // objects, so we just add the File/Blob objects to 464 // the formData array and let the postMessage window 465 // create the FormData object out of this array: 466 formData = this._getFormData(options); 467 if (options.blob) { 468 formData.push({ 469 name: paramName, 470 value: options.blob 471 }); 472 } else { 473 $.each(options.files, function (index, file) { 474 formData.push({ 475 name: ($.type(options.paramName) === 'array' && 476 options.paramName[index]) || paramName, 477 value: file 478 }); 479 }); 480 } 481 } else { 482 if (that._isInstanceOf('FormData', options.formData)) { 483 formData = options.formData; 484 } else { 485 formData = new FormData(); 486 $.each(this._getFormData(options), function (index, field) { 487 formData.append(field.name, field.value); 488 }); 489 } 490 if (options.blob) { 491 formData.append(paramName, options.blob, file.name); 492 } else { 493 $.each(options.files, function (index, file) { 494 // This check allows the tests to run with 495 // dummy objects: 496 if (that._isInstanceOf('File', file) || 497 that._isInstanceOf('Blob', file)) { 498 formData.append( 499 ($.type(options.paramName) === 'array' && 500 options.paramName[index]) || paramName, 501 file, 502 file.uploadName || file.name 503 ); 504 } 505 }); 506 } 507 } 508 options.data = formData; 509 } 510 // Blob reference is not needed anymore, free memory: 511 options.blob = null; 512 }, 513 514 _initIframeSettings: function (options) { 515 var targetHost = $('<a></a>').prop('href', options.url).prop('host'); 516 // Setting the dataType to iframe enables the iframe transport: 517 options.dataType = 'iframe ' + (options.dataType || ''); 518 // The iframe transport accepts a serialized array as form data: 519 options.formData = this._getFormData(options); 520 // Add redirect url to form data on cross-domain uploads: 521 if (options.redirect && targetHost && targetHost !== location.host) { 522 options.formData.push({ 523 name: options.redirectParamName || 'redirect', 524 value: options.redirect 525 }); 526 } 527 }, 528 529 _initDataSettings: function (options) { 530 if (this._isXHRUpload(options)) { 531 if (!this._chunkedUpload(options, true)) { 532 if (!options.data) { 533 this._initXHRData(options); 534 } 535 this._initProgressListener(options); 536 } 537 if (options.postMessage) { 538 // Setting the dataType to postmessage enables the 539 // postMessage transport: 540 options.dataType = 'postmessage ' + (options.dataType || ''); 541 } 542 } else { 543 this._initIframeSettings(options); 544 } 545 }, 546 547 _getParamName: function (options) { 548 var fileInput = $(options.fileInput), 549 paramName = options.paramName; 550 if (!paramName) { 551 paramName = []; 552 fileInput.each(function () { 553 var input = $(this), 554 name = input.prop('name') || 'files[]', 555 i = (input.prop('files') || [1]).length; 556 while (i) { 557 paramName.push(name); 558 i -= 1; 559 } 560 }); 561 if (!paramName.length) { 562 paramName = [fileInput.prop('name') || 'files[]']; 563 } 564 } else if (!$.isArray(paramName)) { 565 paramName = [paramName]; 566 } 567 return paramName; 568 }, 569 570 _initFormSettings: function (options) { 571 // Retrieve missing options from the input field and the 572 // associated form, if available: 573 if (!options.form || !options.form.length) { 574 options.form = $(options.fileInput.prop('form')); 575 // If the given file input doesn't have an associated form, 576 // use the default widget file input's form: 577 if (!options.form.length) { 578 options.form = $(this.options.fileInput.prop('form')); 579 } 580 } 581 options.paramName = this._getParamName(options); 582 if (!options.url) { 583 options.url = options.form.prop('action') || location.href; 584 } 585 // The HTTP request method must be "POST" or "PUT": 586 options.type = (options.type || 587 ($.type(options.form.prop('method')) === 'string' && 588 options.form.prop('method')) || '' 589 ).toUpperCase(); 590 if (options.type !== 'POST' && options.type !== 'PUT' && 591 options.type !== 'PATCH') { 592 options.type = 'POST'; 593 } 594 if (!options.formAcceptCharset) { 595 options.formAcceptCharset = options.form.attr('accept-charset'); 596 } 597 }, 598 599 _getAJAXSettings: function (data) { 600 var options = $.extend({}, this.options, data); 601 this._initFormSettings(options); 602 this._initDataSettings(options); 603 return options; 604 }, 605 606 // jQuery 1.6 doesn't provide .state(), 607 // while jQuery 1.8+ removed .isRejected() and .isResolved(): 608 _getDeferredState: function (deferred) { 609 if (deferred.state) { 610 return deferred.state(); 611 } 612 if (deferred.isResolved()) { 613 return 'resolved'; 614 } 615 if (deferred.isRejected()) { 616 return 'rejected'; 617 } 618 return 'pending'; 619 }, 620 621 // Maps jqXHR callbacks to the equivalent 622 // methods of the given Promise object: 623 _enhancePromise: function (promise) { 624 promise.success = promise.done; 625 promise.error = promise.fail; 626 promise.complete = promise.always; 627 return promise; 628 }, 629 630 // Creates and returns a Promise object enhanced with 631 // the jqXHR methods abort, success, error and complete: 632 _getXHRPromise: function (resolveOrReject, context, args
632) { 633 var dfd = $.Deferred(), 634 promise = dfd.promise(); 635 context = context || this.options.context || promise; 636 if (resolveOrReject === true) { 637 dfd.resolveWith(context, args); 638 } else if (resolveOrReject === false) { 639 dfd.rejectWith(context, args); 640 } 641 promise.abort = dfd.promise; 642 return this._enhancePromise(promise); 643 }, 644 645 // Adds convenience methods to the data callback argument: 646 _addConvenienceMethods: function (e, data) { 647 var that = this, 648 getPromise = function (args) { 649 return $.Deferred().resolveWith(that, args).promise(); 650 }; 651 data.process = function (resolveFunc, rejectFunc) { 652 if (resolveFunc || rejectFunc) { 653 data._processQueue = this._processQueue = 654 (this._processQueue || getPromise([this])).pipe( 655 function () { 656 if (data.errorThrown) { 657 return $.Deferred() 658 .rejectWith(that, [data]).promise(); 659 } 660 return getPromise(arguments); 661 } 662 ).pipe(resolveFunc, rejectFunc); 663 } 664 return this._processQueue || getPromise([this]); 665 }; 666 data.submit = function () { 667 if (this.state() !== 'pending') { 668 data.jqXHR = this.jqXHR = 669 (that._trigger( 670 'submit', 671 $.Event('submit', {delegatedEvent: e}), 672 this 673 ) !== false) && that._onSend(e, this); 674 } 675 return this.jqXHR || that._getXHRPromise(); 676 }; 677 data.abort = function () { 678 if (this.jqXHR) { 679 return this.jqXHR.abort(); 680 } 681 this.errorThrown = 'abort'; 682 that._trigger('fail', null, this); 683 return that._getXHRPromise(false); 684 }; 685 data.state = function () { 686 if (this.jqXHR) { 687 return that._getDeferredState(this.jqXHR); 688 } 689 if (this._processQueue) { 690 return that._getDeferredState(this._processQueue); 691 } 692 }; 693 data.processing = function () { 694 return !this.jqXHR && this._processQueue && that 695 ._getDeferredState(this._processQueue) === 'pending'; 696 }; 697 data.progress = function () { 698 return this._progress; 699 }; 700 data.response = function () { 701 return this._response; 702 }; 703 }, 704 705 // Parses the Range header from the server response 706 // and returns the uploaded bytes: 707 _getUploadedBytes: function (jqXHR) { 708 var range = jqXHR.getResponseHeader('Range'), 709 parts = range && range.split('-'), 710 upperBytesPos = parts && parts.length > 1 && 711 parseInt(parts[1], 10); 712 return upperBytesPos && upperBytesPos + 1; 713 }, 714 715 // Uploads a file in multiple, sequential requests 716 // by splitting the file up in multiple blob chunks. 717 // If the second parameter is true, only tests if the file 718 // should be uploaded in chunks, but does not invoke any 719 // upload requests: 720 _chunkedUpload: function (options, testOnly) { 721 options.uploadedBytes = options.uploadedBytes || 0; 722 var that = this, 723 file = options.files[0], 724 fs = file.size, 725 ub = options.uploadedBytes, 726 mcs = options.maxChunkSize || fs, 727 slice = this._blobSlice, 728 dfd = $.Deferred(), 729 promise = dfd.promise(), 730 jqXHR, 731 upload; 732 if (!(this._isXHRUpload(options) && slice && (ub || mcs < fs)) || 733 options.data) { 734 return false;
735 } 736 if (testOnly) { 737 return true; 738 } 739 if (ub >= fs) { 740 file.error = options.i18n('uploadedBytes'); 741 return this._getXHRPromise( 742 false, 743 options.context, 744 [null, 'error', file.error] 745 ); 746 } 747 // The chunk upload method: 748 upload = function () { 749 // Clone the options object for each chunk upload: 750 var o = $.extend({}, options), 751 currentLoaded = o._progress.loaded; 752 o.blob = slice.call( 753 file, 754 ub, 755 ub + mcs, 756 file.type 757 ); 758 // Store the current chunk size, as the blob itself 759 // will be dereferenced after data processing: 760 o.chunkSize = o.blob.size; 761 // Expose the chunk bytes position range: 762 o.contentRange = 'bytes ' + ub + '-' + 763 (ub + o.chunkSize - 1) + '/' + fs; 764 // Process the upload data (the blob and potential form data): 765 that._initXHRData(o); 766 // Add progress listeners for this chunk upload: 767 that._initProgressListener(o); 768 jqXHR = ((that._trigger('chunksend', null, o) !== false && $.ajax(o)) || 769 that._getXHRPromise(false, o.context)) 770 .done(function (result, textStatus, jqXHR) { 771 ub = that._getUploadedBytes(jqXHR) || 772 (ub + o.chunkSize); 773 // Create a progress event if no final progress event 774 // with loaded equaling total has been triggered 775 // for this chunk: 776 if (currentLoaded + o.chunkSize - o._progress.loaded) { 777 that._onProgress($.Event('progress', { 778 lengthComputable: true, 779 loaded: ub - o.uploadedBytes, 780 total: ub - o.uploadedBytes 781 }), o); 782 } 783 options.uploadedBytes = o.uploadedBytes = ub; 784 o.result = result; 785 o.textStatus = textStatus; 786 o.jqXHR = jqXHR; 787 that._trigger('chunkdone', null, o); 788 that._trigger('chunkalways', null, o); 789 if (ub < fs) { 790 // File upload not yet complete, 791 // continue with the next chunk: 792 upload(); 793 } else { 794 dfd.resolveWith( 795 o.context, 796 [result, textStatus, jqXHR] 797 ); 798 } 799 }) 800 .fail(function (jqXHR, textStatus, errorThrown) { 801 o.jqXHR = jqXHR; 802 o.textStatus = textStatus; 803 o.errorThrown = errorThrown; 804 that._trigger('chunkfail', null, o); 805 that._trigger('chunkalways', null, o); 806 dfd.rejectWith( 807 o.context, 808 [jqXHR, textStatus, errorThrown] 809 ); 810 }); 811 }; 812 this._enhancePromise(promise); 813 promise.abort = function () { 814 return jqXHR.abort(); 815 }; 816 upload(); 817 return promise; 818 }, 819 820 _beforeSend: function (e, data) { 821 if (this._active === 0) { 822 // the start callback is triggered when an upload starts 823 // and no other uploads are currently running, 824 // equivalent to the global ajaxStart event: 825 this._trigger('start'); 826 // Set timer for global bitrate progress calculation: 827 this._bitrateTimer = new this._BitrateTimer(); 828 // Reset the global progress values: 829 this._progress.loaded = this._progress.total = 0; 830 this._progress.bitrate = 0; 831 } 832 // Make sure the container objects for the .response() and 833 // .progress() methods on the data object are available 834 // and reset to their initial state: 835 this._initResponseObject(data); 836 this._initProgressObject(data); 837 data._progress.loaded = data.loaded = data.uploadedBytes || 0; 838 data._progress.total = data.total = this._getTotal(data.files) || 1; 839 data._progress.bitrate = data.bitrate = 0; 840 this._active += 1; 841 // Initialize the global progress values: 842 this._progress.loaded += data.loaded; 843 this._progress.total += data.total; 844 }, 845 846 _onDone: function (result, textStatus, jqXHR, options) { 847 var total = options._progress.total, 848 response = options._response; 849 if (options._progress.loaded < total) { 850 // Create a progress event if no final progress event 851 // with loaded equaling total has been triggered: 852 this._onProgress($.Event('progress', { 853 lengthComputable: true, 854 loaded: total, 855 total: total 856 }), options); 857 } 858 response.result = options.result = result; 859 response.textStatus = options.textStatus = textStatus; 860 response.jqXHR = options.jqXHR = jqXHR; 861 this._trigger('done', null, options); 862 }, 863 864 _onFail: function (jqXHR, textStatus, errorThrown, options) { 865 var response = options._response; 866 if (options.recalculateProgress) { 867 // Remove the failed (error or abort) file upload from 868 // the global progress calculation: 869 this._progress.loaded -= options._progress.loaded;
870 this._progress.total -= options._progress.total; 871 } 872 response.jqXHR = options.jqXHR = jqXHR; 873 response.textStatus = options.textStatus = textStatus; 874 response.errorThrown = options.errorThrown = errorThrown; 875 this._trigger('fail', null, options); 876 }, 877 878 _onAlways: function (jqXHRorResult, textStatus, jqXHRorError, options) { 879 // jqXHRorResult, textStatus and jqXHRorError are added to the 880 // options object via done and fail callbacks 881 this._trigger('always', null, options); 882 }, 883 884 _onSend: function (e, data) { 885 if (!data.submit) { 886 this._addConvenienceMethods(e, data); 887 } 888 var that = this, 889 jqXHR, 890 aborted, 891 slot, 892 pipe, 893 options = that._getAJAXSettings(data), 894 send = function () { 895 that._sending += 1; 896 // Set timer for bitrate progress calculation: 897 options._bitrateTimer = new that._BitrateTimer(); 898 jqXHR = jqXHR || ( 899 ((aborted || that._trigger( 900 'send', 901 $.Event('send', {delegatedEvent: e}), 902 options 903 ) === false) && 904 that._getXHRPromise(false, options.context, aborted)) || 905 that._chunkedUpload(options) || $.ajax(options) 906 ).done(function (result, textStatus, jqXHR) { 907 that._onDone(result, textStatus, jqXHR, options); 908 }).fail(function (jqXHR, textStatus, errorThrown) { 909 that._onFail(jqXHR, textStatus, errorThrown, options); 910 }).always(function (jqXHRorResult, textStatus, jqXHRorError) { 911 that._onAlways( 912 jqXHRorResult, 913 textStatus, 914 jqXHRorError, 915 options 916 ); 917 that._sending -= 1; 918 that._active -= 1; 919 if (options.limitConcurrentUploads && 920 options.limitConcurrentUploads > that._sending) { 921 // Start the next queued upload, 922 // that has not been aborted: 923 var nextSlot = that._slots.shift(); 924 while (nextSlot) { 925 if (that._getDeferredState(nextSlot) === 'pending') { 926 nextSlot.resolve(); 927 break; 928 } 929 nextSlot = that._slots.shift(); 930 } 931 } 932 if (that._active === 0) { 933 // The stop callback is triggered when all uploads have 934 // been completed, equivalent to the global ajaxStop event: 935 that._trigger('stop'); 936 } 937 }); 938 return jqXHR; 939 }; 940 this._beforeSend(e, options); 941 if (this.options.sequentialUploads || 942 (this.options.limitConcurrentUploads && 943 this.options.limitConcurrentUploads <= this._sending)) { 944 if (this.options.limitConcurrentUploads > 1) { 945 slot = $.Deferred(); 946 this._slots.push(slot); 947 pipe = slot.pipe(send); 948 } else { 949 this._sequence = this._sequence.pipe(send, send); 950 pipe = this._sequence; 951 } 952 // Return the piped Promise object, enhanced with an abort method, 953 // which is delegated to the jqXHR object of the current upload, 954 // and jqXHR callbacks mapped to the equivalent Promise methods: 955 pipe.abort = function () { 956 aborted = [undefined, 'abort', 'abort']; 957 if (!jqXHR) { 958 if (slot) { 959 slot.rejectWith(options.context, aborted); 960 } 961 return send(); 962 } 963 return jqXHR.abort(); 964 }; 965 return this._enhancePromise(pipe); 966 } 967 return send(); 968 }, 969 970 _onAdd: function (e, data) { 971 var that = this, 972 result = true, 973 options = $.extend({}, this.options, data), 974 files = data.files, 975 filesLength = files.length, 976 limit = options.limitMultiFileUploads, 977 limitSize = options.limitMultiFileUploadSize, 978 overhead = options.limitMultiFileUploadSizeOverhead, 979 batchSize = 0, 980 paramName = this._getParamName(options), 981 paramNameSet, 982 paramNameSlice, 983 fileSet, 984 i, 985 j = 0; 986 if (limitSize && (!filesLength || files[0].size === undefined)) { 987 limitSize = undefined; 988 } 989 if (!(options.singleFileUploads || limit || limitSize) || 990 !this._isXHRUpload(options)) { 991 fileSet = [files]; 992 paramNameSet = [paramName]; 993 } else if (!(options.singleFileUploads || limitSize) && limit) { 994 fileSet = []; 995 paramNameSet = []; 996 for (i = 0; i < filesLength; i += limit) { 997 fileSet.push(files.slice(i, i + limit)); 998 paramNameSlice = paramName.slice(i, i + limit); 999 if (!paramNameSlice.length) { 1000 paramNameSlice = paramName; 1001 } 1002 paramNameSet.push(paramNameSlice); 1003 } 1004 } else if (!options.singleFileUploads && limitSize) { 1005 fileSet = []; 1006 paramNameSet = []; 1007 for (i = 0; i < filesLength; i = i + 1) {
1008 batchSize += files[i].size + overhead; 1009 if (i + 1 === filesLength || 1010 ((batchSize + files[i + 1].size + overhead) > limitSize) || 1011 (limit && i + 1 - j >= limit)) { 1012 fileSet.push(files.slice(j, i + 1)); 1013 paramNameSlice = paramName.slice(j, i + 1); 1014 if (!paramNameSlice.length) { 1015 paramNameSlice = paramName; 1016 } 1017 paramNameSet.push(paramNameSlice); 1018 j = i + 1; 1019 batchSize = 0; 1020 } 1021 } 1022 } else { 1023 paramNameSet = paramName; 1024 } 1025 data.originalFiles = files; 1026 $.each(fileSet || files, function (index, element) { 1027 var newData = $.extend({}, data); 1028 newData.files = fileSet ? element : [element]; 1029 newData.paramName = paramNameSet[index]; 1030 that._initResponseObject(newData); 1031 that._initProgressObject(newData); 1032 that._addConvenienceMethods(e, newData); 1033 result = that._trigger( 1034 'add', 1035 $.Event('add', {delegatedEvent: e}), 1036 newData 1037 ); 1038 return result; 1039 }); 1040 return result; 1041 }, 1042 1043 _replaceFileInput: function (data) { 1044 var input = data.fileInput, 1045 inputClone = input.clone(true); 1046 // Add a reference for the new cloned file input to the data argument: 1047 data.fileInputClone = inputClone; 1048 $('<form></form>').append(inputClone)[0].reset(); 1049 // Detaching allows to insert the fileInput on another form 1050 // without loosing the file input value: 1051 input.after(inputClone).detach(); 1052 // Avoid memory leaks with the detached file input: 1053 $.cleanData(input.unbind('remove')); 1054 // Replace the original file input element in the fileInput 1055 // elements set with the clone, which has been copied including 1056 // event handlers: 1057 this.options.fileInput = this.options.fileInput.map(function (i, el) { 1058 if (el === input[0]) { 1059 return inputClone[0]; 1060 } 1061 return el; 1062 }); 1063 // If the widget has been initialized on the file input itself, 1064 // override this.element with the file input clone: 1065 if (input[0] === this.element[0]) { 1066 this.element = inputClone; 1067 } 1068 }, 1069 1070 _handleFileTreeEntry: function (entry, path) { 1071 var that = this, 1072 dfd = $.Deferred(), 1073 errorHandler = function (e) { 1074 if (e && !e.entry) { 1075 e.entry = entry; 1076 } 1077 // Since $.when returns immediately if one 1078 // Deferred is rejected, we use resolve instead. 1079 // This allows valid files and invalid items 1080 // to be returned together in one set: 1081 dfd.resolve([e]); 1082 }, 1083 successHandler = function (entries) { 1084 that._handleFileTreeEntries( 1085 entries, 1086 path + entry.name + '/' 1087 ).done(function (files) { 1088 dfd.resolve(files); 1089 }).fail(errorHandler); 1090 }, 1091 readEntries = function () { 1092 dirReader.readEntries(function (results) { 1093 if (!results.length) { 1094 successHandler(entries); 1095 } else { 1096 entries = entries.concat(results); 1097 readEntries(); 1098 } 1099 }, errorHandler); 1100 }, 1101 dirReader, entries = []; 1102 path = path || ''; 1103 if (entry.isFile) { 1104 if (entry._file) { 1105 // Workaround for Chrome bug #149735 1106 entry._file.relativePath = path; 1107 dfd.resolve(entry._file); 1108 } else { 1109 entry.file(function (file) { 1110 file.relativePath = path; 1111 dfd.resolve(file); 1112 }, errorHandler); 1113 } 1114 } else if (entry.isDirectory) { 1115 dirReader = entry.createReader(); 1116 readEntries(); 1117 } else { 1118 // Return an empy list for file system items 1119 // other than files or directories: 1120 dfd.resolve([]); 1121 } 1122 return dfd.promise(); 1123 }, 1124 1125 _handleFileTreeEntries: function (entries, path) { 1126 var that = this; 1127 return $.when.apply( 1128 $, 1129 $.map(entries, function (entry) { 1130 return that._handleFileTreeEntry(entry, path); 1131 }) 1132 ).pipe(function () { 1133 return Array.prototype.concat.apply( 1134 [], 1135 arguments 1136 ); 1137 }); 1138 }, 1139 1140 _getDroppedFiles: function (dataTransfer) { 1141 dataTransfer = dataTransfer || {}; 1142 var items = dataTransfer.items; 1143 if (items && items.length && (items[0].webkitGetAsEntry || 1144 items[0].getAsEntry)) { 1145 return this._handleFileTreeEntries( 1146 $.map(items, function (item) { 1147 var entry; 1148 if (item.webkitGetAsEntry) { 1149 entry = item.webkitGetAsEntry(); 1150 if (entry) { 1151 // Workaround for Chrome bug #149735: 1152 entry._file = item.getAsFile(); 1153 } 1154 return entry; 1155 } 1156 return item.getAsEntry(); 1157 }) 1158 ); 1159 } 1160 return $.Deferred().resolve( 1161 $.makeArray(dataTransfer.files) 1162 ).promise(); 1163 }, 1164 1165 _getSingleFileInputFiles: function (fileInput) { 1166 fileInput = $(fileInput); 1167 var entries = fileInput.prop('webkitEntries') || 1168 fileInput.prop('entries'), 1169 files, 1170 value;
1171 if (entries && entries.length) { 1172 return this._handleFileTreeEntries(entries); 1173 } 1174 files = $.makeArray(fileInput.prop('files')); 1175 if (!files.length) { 1176 value = fileInput.prop('value'); 1177 if (!value) { 1178 return $.Deferred().resolve([]).promise(); 1179 } 1180 // If the files property is not available, the browser does not 1181 // support the File API and we add a pseudo File object with 1182 // the input value as name with path information removed: 1183 files = [{name: value.replace(/^.*\\/, '')}]; 1184 } else if (files[0].name === undefined && files[0].fileName) { 1185 // File normalization for Safari 4 and Firefox 3: 1186 $.each(files, function (index, file) { 1187 file.name = file.fileName; 1188 file.size = file.fileSize; 1189 }); 1190 } 1191 return $.Deferred().resolve(files).promise(); 1192 }, 1193 1194 _getFileInputFiles: function (fileInput) { 1195 if (!(fileInput instanceof $) || fileInput.length === 1) { 1196 return this._getSingleFileInputFiles(fileInput); 1197 } 1198 return $.when.apply( 1199 $, 1200 $.map(fileInput, this._getSingleFileInputFiles) 1201 ).pipe(function () { 1202 return Array.prototype.concat.apply( 1203 [], 1204 arguments 1205 ); 1206 }); 1207 }, 1208 1209 _onChange: function (e) { 1210 var that = this, 1211 data = { 1212 fileInput: $(e.target), 1213 form: $(e.target.form) 1214 }; 1215 this._getFileInputFiles(data.fileInput).always(function (files) { 1216 data.files = files; 1217 if (that.options.replaceFileInput) { 1218 that._replaceFileInput(data); 1219 } 1220 if (that._trigger( 1221 'change', 1222 $.Event('change', {delegatedEvent: e}), 1223 data 1224 ) !== false) { 1225 that._onAdd(e, data); 1226 } 1227 }); 1228 }, 1229 1230 _onPaste: function (e) { 1231 var items = e.originalEvent && e.originalEvent.clipboardData && 1232 e.originalEvent.clipboardData.items, 1233 data = {files: []}; 1234 if (items && items.length) { 1235 $.each(items, function (index, item) { 1236 var file = item.getAsFile && item.getAsFile(); 1237 if (file) { 1238 data.files.push(file); 1239 } 1240 }); 1241 if (this._trigger( 1242 'paste', 1243 $.Event('paste', {delegatedEvent: e}), 1244 data 1245 ) !== false) { 1246 this._onAdd(e, data); 1247 } 1248 } 1249 }, 1250 1251 _onDrop: function (e) { 1252 e.dataTransfer = e.originalEvent && e.originalEvent.dataTransfer; 1253 var that = this, 1254 dataTransfer = e.dataTransfer, 1255 data = {}; 1256 if (dataTransfer && dataTransfer.files && dataTransfer.files.length) { 1257 e.preventDefault(); 1258 this._getDroppedFiles(dataTransfer).always(function (files) { 1259 data.files = files; 1260 if (that._trigger( 1261 'drop', 1262 $.Event('drop', {delegatedEvent: e}), 1263 data 1264 ) !== false) { 1265 that._onAdd(e, data); 1266 } 1267 }); 1268 } 1269 }, 1270 1271 _onDragOver: getDragHandler('dragover'), 1272 1273 _onDragEnter: getDragHandler('dragenter'), 1274 1275 _onDragLeave: getDragHandler('dragleave'), 1276 1277 _initEventHandlers: function () { 1278 if (this._isXHRUpload(this.options)) { 1279 this._on(this.options.dropZone, { 1280 dragover: this._onDragOver, 1281 drop: this._onDrop, 1282 // event.preventDefault() on dragenter is required for IE10+: 1283 dragenter: this._onDragEnter, 1284 // dragleave is not required, but added for c
1284ompleteness: 1285 dragleave: this._onDragLeave 1286 }); 1287 this._on(this.options.pasteZone, { 1288 paste: this._onPaste 1289 }); 1290 } 1291 if ($.support.fileInput) { 1292 this._on(this.options.fileInput, { 1293 change: this._onChange 1294 }); 1295 } 1296 }, 1297 1298 _destroyEventHandlers: function () { 1299 this._off(this.options.dropZone, 'dragenter dragleave dragover drop'); 1300 this._off(this.options.pasteZone, 'paste'); 1301 this._off(this.options.fileInput, 'change'); 1302 }, 1303 1304 _setOption: function (key, value) { 1305 var reinit = $.inArray(key, this._specialOptions) !== -1; 1306 if (reinit) { 1307 this._destroyEventHandlers(); 1308 } 1309 this._super(key, value); 1310 if (reinit) { 1311 this._initSpecialOptions(); 1312 this._initEventHandlers(); 1313 } 1314 }, 1315 1316 _initSpecialOptions: function () { 1317 var options = this.options; 1318 if (options.fileInput === undefined) { 1319 options.fileInput = this.element.is('input[type="file"]') ? 1320 this.element : this.element.find('input[type="file"]'); 1321 } else if (!(options.fileInput instanceof $)) { 1322 options.fileInput = $(options.fileInput); 1323 } 1324 if (!(options.dropZone instanceof $)) { 1325 options.dropZone = $(options.dropZone); 1326 } 1327 if (!(options.pasteZone instanceof $)) { 1328 options.pasteZone = $(options.pasteZone); 1329 } 1330 }, 1331 1332 _getRegExp: function (str) { 1333 var parts = str.split('/'), 1334 modifiers = parts.pop(); 1335 parts.shift(); 1336 return new RegExp(parts.join('/'), modifiers); 1337 }, 1338 1339 _isRegExpOption: function (key, value) { 1340 return key !== 'url' && $.type(value) === 'string' && 1341 /^\/.*\/[igm]{0,3}$/.test(value); 1342 }, 1343 1344 _initDataAttributes: function () { 1345 var that = this, 1346 options = this.options, 1347 clone = $(this.element[0].cloneNode(false)), 1348 data = clone.data(); 1349 // Avoid memory leaks: 1350 clone.remove(); 1351 // Initialize options set via HTML5 data-attributes: 1352 $.each( 1353 data, 1354 function (key, value) { 1355 var dataAttributeName = 'data-' + 1356 // Convert camelCase to hyphen-ated key: 1357 key.replace(/([a-z])([A-Z])/g, '$1-$2').toLowerCase(); 1358 if (clone.attr(dataAttributeName)) { 1359 if (that._isRegExpOption(key, value)) { 1360 value = that._getRegExp(value); 1361 } 1362 options[key] = value; 1363 } 1364 } 1365 ); 1366 }, 1367 1368 _create: function () { 1369 this._initDataAttributes(); 1370 this._initSpecialOptions(); 1371 this._slots = []; 1372 this._sequence = this._getXHRPromise(true); 1373 this._sending = this._active = 0; 1374 this._initProgressObject(this); 1375 this._initEventHandlers(); 1376 }, 1377 1378 // This method is exposed to the widget API and allows to query 1379 // the number of active uploads: 1380 active: function () { 1381 return this._active; 1382 }, 1383 1384 // This method is exposed to the widget API and allows to query 1385 // the widget upload progress. 1386 // It returns an object with loaded, total and bitrate properties 1387 // for the running uploads: 1388 progress: function () { 1389 return this._progress; 1390 }, 1391 1392 // This method is exposed to the widget API and allows adding files 1393 // using the fileupload API. The data parameter accepts an object which 1394 // must have a files property and can contain additional options: 1395 // .fileupload('add', {files: filesList}); 1396 add: function (data) { 1397 var that = this; 1398 if (!data || this.options.disabled) { 1399 return; 1400 } 1401 if (data.fileInput && !data.files) { 1402 this._getFileInputFiles(data.fileInput).always(function (files) { 1403 data.files = files; 1404 that._onAdd(null, data); 1405 }); 1406 } else { 1407 data.files = $.makeArray(data.files); 1408 this._onAdd(null, data); 1409 } 1410 }, 1411 1412 // This method is exposed to the widget API and allows sending files 1413 // using the fileupload API. The data parameter accepts an object which 1414 // must have a files or fileInput property and can contain additional options: 1415 // .fileupload('send', {files: filesList}); 1416 // The method returns a Promise object for the file upload call. 1417 send: function (data) { 1418 if (data && !this.options.disabled) { 1419 if (data.fileInput && !data.files) { 1420 var that = this, 1421 dfd = $.Deferred(), 1422 promise = dfd.promise(), 1423 jqXHR, 1424 aborted; 1425 promise.abort = function () { 1426 aborted = true; 1427 if (jqXHR) { 1428 return jqXHR.abort(); 1429 } 1430 dfd.reject(null, 'abort', 'abort'); 1431 return promise; 1432 }; 1433 this._getFileInputFiles(data.fileInput).always( 1434 function (files) { 1435 if (aborted) { 1436 return; 1437 } 1438 if (!files.length) { 1439 dfd.reject(); 1440 return; 1441 } 1442 data.files = files; 1443 jqXHR = that._onSend(null, data); 1444 jqXHR.then( 1445 function (result, textStatus, jqXHR) { 1446 dfd.resolve(result, textStatus, jqXHR); 1447 }, 1448 function (jqXHR, textStatus, errorThrown) { 1449 dfd.reject(jqXHR, textStatus, errorThrown); 1450 } 1451 ); 1452 } 1453 ); 1454 return this._enhancePromise(promise); 1455 } 1456 data.files = $.makeArray(data.files); 1457 if (data.files.length) { 1458 return this._onSend(null, data); 1459 } 1460 } 1461 return this._getXHRPromise(false, data && data.context); 1462 } 1463 1464 }); 1465 1466}));
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.