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view OrthancExplorer/libs/jquery-file-upload/js/jquery.fileupload.js @ 1803:d093f998a83b worklists
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 20 Nov 2015 16:42:49 +0100 |
parents | 4bc019d2f969 |
children | 5713952f60c0 d86bddb50972 |
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/* * jQuery File Upload Plugin 5.12 * https://github.com/blueimp/jQuery-File-Upload * * Copyright 2010, Sebastian Tschan * https://blueimp.net * * Licensed under the MIT license: * http://www.opensource.org/licenses/MIT */ /*jslint nomen: true, unparam: true, regexp: true */ /*global define, window, document, Blob, FormData, location */ (function (factory) { 'use strict'; if (typeof define === 'function' && define.amd) { // Register as an anonymous AMD module: define([ 'jquery', 'jquery.ui.widget' ], factory); } else { // Browser globals: factory(window.jQuery); } }(function ($) { 'use strict'; // The FileReader API is not actually used, but works as feature detection, // as e.g. Safari supports XHR file uploads via the FormData API, // but not non-multipart XHR file uploads: $.support.xhrFileUpload = !!(window.XMLHttpRequestUpload && window.FileReader); $.support.xhrFormDataFileUpload = !!window.FormData; // The fileupload widget listens for change events on file input fields defined // via fileInput setting and paste or drop events of the given dropZone. // In addition to the default jQuery Widget methods, the fileupload widget // exposes the "add" and "send" methods, to add or directly send files using // the fileupload API. // By default, files added via file input selection, paste, drag & drop or // "add" method are uploaded immediately, but it is possible to override // the "add" callback option to queue file uploads. $.widget('blueimp.fileupload', { options: { // The namespace used for event handler binding on the dropZone and // fileInput collections. // If not set, the name of the widget ("fileupload") is used. namespace: undefined, // The drop target collection, by the default the complete document. // Set to null or an empty collection to disable drag & drop support: dropZone: $(document), // The file input field collection, that is listened for change events. // If undefined, it is set to the file input fields inside // of the widget element on plugin initialization. // Set to null or an empty collection to disable the change listener. fileInput: undefined, // By default, the file input field is replaced with a clone after // each input field change event. This is required for iframe transport // queues and allows change events to be fired for the same file // selection, but can be disabled by setting the following option to false: replaceFileInput: true, // The parameter name for the file form data (the request argument name). // If undefined or empty, the name property of the file input field is // used, or "files[]" if the file input name property is also empty, // can be a string or an array of strings: paramName: undefined, // By default, each file of a selection is uploaded using an individual // request for XHR type uploads. Set to false to upload file // selections in one request each: singleFileUploads: true, // To limit the number of files uploaded with one XHR request, // set the following option to an integer greater than 0: limitMultiFileUploads: undefined, // Set the following option to true to issue all file upload requests // in a sequential order: sequentialUploads: false, // To limit the number of concurrent uploads, // set the following option to an integer greater than 0: limitConcurrentUploads: undefined, // Set the following option to true to force iframe transport uploads: forceIframeTransport: false, // Set the following option to the location of a redirect url on the // origin server, for cross-domain iframe transport uploads: redirect: undefined, // The parameter name for the redirect url, sent as part of the form // data and set to 'redirect' if this option is empty: redirectParamName: undefined, // Set the following option to the location of a postMessage window, // to enable postMessage transport uploads: postMessage: undefined, // By default, XHR file uploads are sent as multipart/form-data. // The iframe transport is always using multipart/form-data. // Set to false to enable non-multipart XHR uploads: multipart: true, // To upload large files in smaller chunks, set the following option // to a preferred maximum chunk size. If set to 0, null or undefined, // or the browser does not support the required Blob API, files will // be uploaded as a whole. maxChunkSize: undefined, // When a non-multipart upload or a chunked multipart upload has been // aborted, this option can be used to resume the upload by setting // it to the size of the already uploaded bytes. This option is most // useful when modifying the options object inside of the "add" or // "send" callbacks, as the options are cloned for each file upload. uploadedBytes: undefined, // By default, failed (abort or error) file uploads are removed from the // global progress calculation. Set the following option to false to // prevent recalculating the global progress data: recalculateProgress: true, // Interval in milliseconds to calculate and trigger progress events: progressInterval: 100, // Interval in milliseconds to calculate progress bitrate: bitrateInterval: 500, // Additional form data to be sent along with the file uploads can be set // using this option, which accepts an array of objects with name and // value properties, a function returning such an array, a FormData // object (for XHR file uploads), or a simple object. // The form of the first fileInput is given as parameter to the function: formData: function (form) { return form.serializeArray(); }, // The add callback is invoked as soon as files are added to the fileupload // widget (via file input selection, drag & drop, paste or add API call). // If the singleFileUploads option is enabled, this callback will be // called once for each file in the selection for XHR file uplaods, else // once for each file selection. // The upload starts when the submit method is invoked on the data parameter. // The data object contains a files property holding the added files // and allows to override plugin options as well as define ajax settings. // Listeners for this callback can also be bound the following way: // .bind('fileuploadadd', func); // data.submit() returns a Promise object and allows to attach additional // handlers using jQuery's Deferred callbacks: // data.submit().done(func).fail(func).always(func); add: function (e, data) { data.submit(); }, // Other callbacks: // Callback for the submit event of each file upload: // submit: function (e, data) {}, // .bind('fileuploadsubmit', func); // Callback for the start of each file upload request: // send: function (e, data) {}, // .bind('fileuploadsend', func); // Callback for successful uploads: // done: function (e, data) {}, // .bind('fileuploaddone', func); // Callback for failed (abort or error) uploads: // fail: function (e, data) {}, // .bind('fileuploadfail', func); // Callback for completed (success, abort or error) requests: // always: function (e, data) {}, // .bind('fileuploadalways', func); // Callback for upload progress events: // progress: function (e, data) {}, // .bind('fileuploadprogress', func); // Callback for global upload progress events: // progressall: function (e, data) {}, // .bind('fileuploadprogressall', func); // Callback for uploads start, equivalent to the global ajaxStart event: // start: function (e) {}, // .bind('fileuploadstart', func); // Callback for uploads stop, equivalent to the global ajaxStop event: // stop: function (e) {}, // .bind('fileuploadstop', func); // Callback for change events of the fileInput collection: // change: function (e, data) {}, // .bind('fileuploadchange', func); // Callback for paste events to the dropZone collection: // paste: function (e, data) {}, // .bind('fileuploadpaste', func); // Callback for drop events of the dropZone collection: // drop: function (e, data) {}, // .bind('fileuploaddrop', func); // Callback for dragover events of the dropZone collection: // dragover: function (e) {}, // .bind('fileuploaddragover', func); // The plugin options are used as settings object for the ajax calls. // The following are jQuery ajax settings required for the file uploads: processData: false, contentType: false, cache: false }, // A list of options that require a refresh after assigning a new value: _refreshOptionsList: [ 'namespace', 'dropZone', 'fileInput', 'multipart', 'forceIframeTransport' ], _BitrateTimer: function () { this.timestamp = +(new Date()); this.loaded = 0; this.bitrate = 0; this.getBitrate = function (now, loaded, interval) { var timeDiff = now - this.timestamp; if (!this.bitrate || !interval || timeDiff > interval) { this.bitrate = (loaded - this.loaded) * (1000 / timeDiff) * 8; this.loaded = loaded; this.timestamp = now; } return this.bitrate; }; }, _isXHRUpload: function (options) { return !options.forceIframeTransport && ((!options.multipart && $.support.xhrFileUpload) || $.support.xhrFormDataFileUpload); }, _getFormData: function (options) { var formData; if (typeof options.formData === 'function') { return options.formData(options.form); } if ($.isArray(options.formData)) { return options.formData; } if (options.formData) { formData = []; $.each(options.formData, function (name, value) { formData.push({name: name, value: value}); }); return formData; } return []; }, _getTotal: function (files) { var total = 0; $.each(files, function (index, file) { total += file.size || 1; }); return total; }, _onProgress: function (e, data) { if (e.lengthComputable) { var now = +(new Date()), total, loaded; if (data._time && data.progressInterval && (now - data._time < data.progressInterval) && e.loaded !== e.total) { return; } data._time = now; total = data.total || this._getTotal(data.files); loaded = parseInt( e.loaded / e.total * (data.chunkSize || total), 10 ) + (data.uploadedBytes || 0); this._loaded += loaded - (data.loaded || data.uploadedBytes || 0); data.lengthComputable = true; data.loaded = loaded; data.total = total; data.bitrate = data._bitrateTimer.getBitrate( now, loaded, data.bitrateInterval ); // Trigger a custom progress event with a total data property set // to the file size(s) of the current upload and a loaded data // property calculated accordingly: this._trigger('progress', e, data); // Trigger a global progress event for all current file uploads, // including ajax calls queued for sequential file uploads: this._trigger('progressall', e, { lengthComputable: true, loaded: this._loaded, total: this._total, bitrate: this._bitrateTimer.getBitrate( now, this._loaded, data.bitrateInterval ) }); } }, _initProgressListener: function (options) { var that = this, xhr = options.xhr ? options.xhr() : $.ajaxSettings.xhr(); // Accesss to the native XHR object is required to add event listeners // for the upload progress event: if (xhr.upload) { $(xhr.upload).bind('progress', function (e) { var oe = e.originalEvent; // Make sure the progress event properties get copied over: e.lengthComputable = oe.lengthComputable; e.loaded = oe.loaded; e.total = oe.total; that._onProgress(e, options); }); options.xhr = function () { return xhr; }; } }, _initXHRData: function (options) { var formData, file = options.files[0], // Ignore non-multipart setting if not supported: multipart = options.multipart || !$.support.xhrFileUpload, paramName = options.paramName[0]; if (!multipart || options.blob) { // For non-multipart uploads and chunked uploads, // file meta data is not part of the request body, // so we transmit this data as part of the HTTP headers. // For cross domain requests, these headers must be allowed // via Access-Control-Allow-Headers or removed using // the beforeSend callback: options.headers = $.extend(options.headers, { 'X-File-Name': file.name, 'X-File-Type': file.type, 'X-File-Size': file.size }); if (!options.blob) { // Non-chunked non-multipart upload: options.contentType = file.type; options.data = file; } else if (!multipart) { // Chunked non-multipart upload: options.contentType = 'application/octet-stream'; options.data = options.blob; } } if (multipart && $.support.xhrFormDataFileUpload) { if (options.postMessage) { // window.postMessage does not allow sending FormData // objects, so we just add the File/Blob objects to // the formData array and let the postMessage window // create the FormData object out of this array: formData = this._getFormData(options); if (options.blob) { formData.push({ name: paramName, value: options.blob }); } else { $.each(options.files, function (index, file) { formData.push({ name: options.paramName[index] || paramName, value: file }); }); } } else { if (options.formData instanceof FormData) { formData = options.formData; } else { formData = new FormData(); $.each(this._getFormData(options), function (index, field) { formData.append(field.name, field.value); }); } if (options.blob) { formData.append(paramName, options.blob, file.name); } else { $.each(options.files, function (index, file) { // File objects are also Blob instances. // This check allows the tests to run with // dummy objects: if (file instanceof Blob) { formData.append( options.paramName[index] || paramName, file, file.name ); } }); } } options.data = formData; } // Blob reference is not needed anymore, free memory: options.blob = null; }, _initIframeSettings: function (options) { // Setting the dataType to iframe enables the iframe transport: options.dataType = 'iframe ' + (options.dataType || ''); // The iframe transport accepts a serialized array as form data: options.formData = this._getFormData(options); // Add redirect url to form data on cross-domain uploads: if (options.redirect && $('<a></a>').prop('href', options.url) .prop('host') !== location.host) { options.formData.push({ name: options.redirectParamName || 'redirect', value: options.redirect }); } }, _initDataSettings: function (options) { if (this._isXHRUpload(options)) { if (!this._chunkedUpload(options, true)) { if (!options.data) { this._initXHRData(options); } this._initProgressListener(options); } if (options.postMessage) { // Setting the dataType to postmessage enables the // postMessage transport: options.dataType = 'postmessage ' + (options.dataType || ''); } } else { this._initIframeSettings(options, 'iframe'); } }, _getParamName: function (options) { var fileInput = $(options.fileInput), paramName = options.paramName; if (!paramName) { paramName = []; fileInput.each(function () { var input = $(this), name = input.prop('name') || 'files[]', i = (input.prop('files') || [1]).length; while (i) { paramName.push(name); i -= 1; } }); if (!paramName.length) { paramName = [fileInput.prop('name') || 'files[]']; } } else if (!$.isArray(paramName)) { paramName = [paramName]; } return paramName; }, _initFormSettings: function (options) { // Retrieve missing options from the input field and the // associated form, if available: if (!options.form || !options.form.length) { options.form = $(options.fileInput.prop('form')); } options.paramName = this._getParamName(options); if (!options.url) { options.url = options.form.prop('action') || location.href; } // The HTTP request method must be "POST" or "PUT": options.type = (options.type || options.form.prop('method') || '') .toUpperCase(); if (options.type !== 'POST' && options.type !== 'PUT') { options.type = 'POST'; } }, _getAJAXSettings: function (data) { var options = $.extend({}, this.options, data); this._initFormSettings(options); this._initDataSettings(options); return options; }, // Maps jqXHR callbacks to the equivalent // methods of the given Promise object: _enhancePromise: function (promise) { promise.success = promise.done; promise.error = promise.fail; promise.complete = promise.always; return promise; }, // Creates and returns a Promise object enhanced with // the jqXHR methods abort, success, error and complete: _getXHRPromise: function (resolveOrReject, context, args) { var dfd = $.Deferred(), promise = dfd.promise(); context = context || this.options.context || promise; if (resolveOrReject === true) { dfd.resolveWith(context, args); } else if (resolveOrReject === false) { dfd.rejectWith(context, args); } promise.abort = dfd.promise; return this._enhancePromise(promise); }, // Uploads a file in multiple, sequential requests // by splitting the file up in multiple blob chunks. // If the second parameter is true, only tests if the file // should be uploaded in chunks, but does not invoke any // upload requests: _chunkedUpload: function (options, testOnly) { var that = this, file = options.files[0], fs = file.size, ub = options.uploadedBytes = options.uploadedBytes || 0, mcs = options.maxChunkSize || fs, // Use the Blob methods with the slice implementation // according to the W3C Blob API specification: slice = file.webkitSlice || file.mozSlice || file.slice, upload, n, jqXHR, pipe; if (!(this._isXHRUpload(options) && slice && (ub || mcs < fs)) || options.data) { return false; } if (testOnly) { return true; } if (ub >= fs) { file.error = 'uploadedBytes'; return this._getXHRPromise( false, options.context, [null, 'error', file.error] ); } // n is the number of blobs to upload, // calculated via filesize, uploaded bytes and max chunk size: n = Math.ceil((fs - ub) / mcs); // The chunk upload method accepting the chunk number as parameter: upload = function (i) { if (!i) { return that._getXHRPromise(true, options.context); } // Upload the blobs in sequential order: return upload(i -= 1).pipe(function () { // Clone the options object for each chunk upload: var o = $.extend({}, options); o.blob = slice.call( file, ub + i * mcs, ub + (i + 1) * mcs ); // Store the current chunk size, as the blob itself // will be dereferenced after data processing: o.chunkSize = o.blob.size; // Process the upload data (the blob and potential form data): that._initXHRData(o); // Add progress listeners for this chunk upload: that._initProgressListener(o); jqXHR = ($.ajax(o) || that._getXHRPromise(false, o.context)) .done(function () { // Create a progress event if upload is done and // no progress event has been invoked for this chunk: if (!o.loaded) { that._onProgress($.Event('progress', { lengthComputable: true, loaded: o.chunkSize, total: o.chunkSize }), o); } options.uploadedBytes = o.uploadedBytes += o.chunkSize; }); return jqXHR; }); }; // Return the piped Promise object, enhanced with an abort method, // which is delegated to the jqXHR object of the current upload, // and jqXHR callbacks mapped to the equivalent Promise methods: pipe = upload(n); pipe.abort = function () { return jqXHR.abort(); }; return this._enhancePromise(pipe); }, _beforeSend: function (e, data) { if (this._active === 0) { // the start callback is triggered when an upload starts // and no other uploads are currently running, // equivalent to the global ajaxStart event: this._trigger('start'); // Set timer for global bitrate progress calculation: this._bitrateTimer = new this._BitrateTimer(); } this._active += 1; // Initialize the global progress values: this._loaded += data.uploadedBytes || 0; this._total += this._getTotal(data.files); }, _onDone: function (result, textStatus, jqXHR, options) { if (!this._isXHRUpload(options)) { // Create a progress event for each iframe load: this._onProgress($.Event('progress', { lengthComputable: true, loaded: 1, total: 1 }), options); } options.result = result; options.textStatus = textStatus; options.jqXHR = jqXHR; this._trigger('done', null, options); }, _onFail: function (jqXHR, textStatus, errorThrown, options) { options.jqXHR = jqXHR; options.textStatus = textStatus; options.errorThrown = errorThrown; this._trigger('fail', null, options); if (options.recalculateProgress) { // Remove the failed (error or abort) file upload from // the global progress calculation: this._loaded -= options.loaded || options.uploadedBytes || 0; this._total -= options.total || this._getTotal(options.files); } }, _onAlways: function (jqXHRorResult, textStatus, jqXHRorError, options) { this._active -= 1; options.textStatus = textStatus; if (jqXHRorError && jqXHRorError.always) { options.jqXHR = jqXHRorError; options.result = jqXHRorResult; } else { options.jqXHR = jqXHRorResult; options.errorThrown = jqXHRorError; } this._trigger('always', null, options); if (this._active === 0) { // The stop callback is triggered when all uploads have // been completed, equivalent to the global ajaxStop event: this._trigger('stop'); // Reset the global progress values: this._loaded = this._total = 0; this._bitrateTimer = null; } }, _onSend: function (e, data) { var that = this, jqXHR, slot, pipe, options = that._getAJAXSettings(data), send = function (resolve, args) { that._sending += 1; // Set timer for bitrate progress calculation: options._bitrateTimer = new that._BitrateTimer(); jqXHR = jqXHR || ( (resolve !== false && that._trigger('send', e, options) !== false && (that._chunkedUpload(options) || $.ajax(options))) || that._getXHRPromise(false, options.context, args) ).done(function (result, textStatus, jqXHR) { that._onDone(result, textStatus, jqXHR, options); }).fail(function (jqXHR, textStatus, errorThrown) { that._onFail(jqXHR, textStatus, errorThrown, options); }).always(function (jqXHRorResult, textStatus, jqXHRorError) { that._sending -= 1; that._onAlways( jqXHRorResult, textStatus, jqXHRorError, options ); if (options.limitConcurrentUploads && options.limitConcurrentUploads > that._sending) { // Start the next queued upload, // that has not been aborted: var nextSlot = that._slots.shift(); while (nextSlot) { if (!nextSlot.isRejected()) { nextSlot.resolve(); break; } nextSlot = that._slots.shift(); } } }); return jqXHR; }; this._beforeSend(e, options); if (this.options.sequentialUploads || (this.options.limitConcurrentUploads && this.options.limitConcurrentUploads <= this._sending)) { if (this.options.limitConcurrentUploads > 1) { slot = $.Deferred(); this._slots.push(slot); pipe = slot.pipe(send); } else { pipe = (this._sequence = this._sequence.pipe(send, send)); } // Return the piped Promise object, enhanced with an abort method, // which is delegated to the jqXHR object of the current upload, // and jqXHR callbacks mapped to the equivalent Promise methods: pipe.abort = function () { var args = [undefined, 'abort', 'abort']; if (!jqXHR) { if (slot) { slot.rejectWith(args); } return send(false, args); } return jqXHR.abort(); }; return this._enhancePromise(pipe); } return send(); }, _onAdd: function (e, data) { var that = this, result = true, options = $.extend({}, this.options, data), limit = options.limitMultiFileUploads, paramName = this._getParamName(options), paramNameSet, paramNameSlice, fileSet, i; if (!(options.singleFileUploads || limit) || !this._isXHRUpload(options)) { fileSet = [data.files]; paramNameSet = [paramName]; } else if (!options.singleFileUploads && limit) { fileSet = []; paramNameSet = []; for (i = 0; i < data.files.length; i += limit) { fileSet.push(data.files.slice(i, i + limit)); paramNameSlice = paramName.slice(i, i + limit); if (!paramNameSlice.length) { paramNameSlice = paramName; } paramNameSet.push(paramNameSlice); } } else { paramNameSet = paramName; } data.originalFiles = data.files; $.each(fileSet || data.files, function (index, element) { var newData = $.extend({}, data); newData.files = fileSet ? element : [element]; newData.paramName = paramNameSet[index]; newData.submit = function () { newData.jqXHR = this.jqXHR = (that._trigger('submit', e, this) !== false) && that._onSend(e, this); return this.jqXHR; }; return (result = that._trigger('add', e, newData)); }); return result; }, // File Normalization for Gecko 1.9.1 (Firefox 3.5) support: _normalizeFile: function (index, file) { if (file.name === undefined && file.size === undefined) { file.name = file.fileName; file.size = file.fileSize; } }, _replaceFileInput: function (input) { var inputClone = input.clone(true); $('<form></form>').append(inputClone)[0].reset(); // Detaching allows to insert the fileInput on another form // without loosing the file input value: input.after(inputClone).detach(); // Avoid memory leaks with the detached file input: $.cleanData(input.unbind('remove')); // Replace the original file input element in the fileInput // collection with the clone, which has been copied including // event handlers: this.options.fileInput = this.options.fileInput.map(function (i, el) { if (el === input[0]) { return inputClone[0]; } return el; }); // If the widget has been initialized on the file input itself, // override this.element with the file input clone: if (input[0] === this.element[0]) { this.element = inputClone; } }, _getFileInputFiles: function (fileInput) { fileInput = $(fileInput); var files = $.each($.makeArray(fileInput.prop('files')), this._normalizeFile), value; if (!files.length) { value = fileInput.prop('value'); if (!value) { return []; } // If the files property is not available, the browser does not // support the File API and we add a pseudo File object with // the input value as name with path information removed: files = [{name: value.replace(/^.*\\/, '')}]; } return files; }, _onChange: function (e) { var that = e.data.fileupload, data = { fileInput: $(e.target), form: $(e.target.form) }; data.files = that._getFileInputFiles(data.fileInput); if (that.options.replaceFileInput) { that._replaceFileInput(data.fileInput); } if (that._trigger('change', e, data) === false || that._onAdd(e, data) === false) { return false; } }, _onPaste: function (e) { var that = e.data.fileupload, cbd = e.originalEvent.clipboardData, items = (cbd && cbd.items) || [], data = {files: []}; $.each(items, function (index, item) { var file = item.getAsFile && item.getAsFile(); if (file) { data.files.push(file); } }); if (that._trigger('paste', e, data) === false || that._onAdd(e, data) === false) { return false; } }, _onDrop: function (e) { var that = e.data.fileupload, dataTransfer = e.dataTransfer = e.originalEvent.dataTransfer, data = { files: $.each( $.makeArray(dataTransfer && dataTransfer.files), that._normalizeFile ) }; if (that._trigger('drop', e, data) === false || that._onAdd(e, data) === false) { return false; } e.preventDefault(); }, _onDragOver: function (e) { var that = e.data.fileupload, dataTransfer = e.dataTransfer = e.originalEvent.dataTransfer; if (that._trigger('dragover', e) === false) { return false; } if (dataTransfer) { dataTransfer.dropEffect = 'copy'; } e.preventDefault(); }, _initEventHandlers: function () { var ns = this.options.namespace; if (this._isXHRUpload(this.options)) { this.options.dropZone .bind('dragover.' + ns, {fileupload: this}, this._onDragOver) .bind('drop.' + ns, {fileupload: this}, this._onDrop) .bind('paste.' + ns, {fileupload: this}, this._onPaste); } this.options.fileInput .bind('change.' + ns, {fileupload: this}, this._onChange); }, _destroyEventHandlers: function () { var ns = this.options.namespace; this.options.dropZone .unbind('dragover.' + ns, this._onDragOver) .unbind('drop.' + ns, this._onDrop) .unbind('paste.' + ns, this._onPaste); this.options.fileInput .unbind('change.' + ns, this._onChange); }, _setOption: function (key, value) { var refresh = $.inArray(key, this._refreshOptionsList) !== -1; if (refresh) { this._destroyEventHandlers(); } $.Widget.prototype._setOption.call(this, key, value); if (refresh) { this._initSpecialOptions(); this._initEventHandlers(); } }, _initSpecialOptions: function () { var options = this.options; if (options.fileInput === undefined) { options.fileInput = this.element.is('input:file') ? this.element : this.element.find('input:file'); } else if (!(options.fileInput instanceof $)) { options.fileInput = $(options.fileInput); } if (!(options.dropZone instanceof $)) { options.dropZone = $(options.dropZone); } }, _create: function () { var options = this.options; // Initialize options set via HTML5 data-attributes: $.extend(options, $(this.element[0].cloneNode(false)).data()); options.namespace = options.namespace || this.widgetName; this._initSpecialOptions(); this._slots = []; this._sequence = this._getXHRPromise(true); this._sending = this._active = this._loaded = this._total = 0; this._initEventHandlers(); }, destroy: function () { this._destroyEventHandlers(); $.Widget.prototype.destroy.call(this); }, enable: function () { $.Widget.prototype.enable.call(this); this._initEventHandlers(); }, disable: function () { this._destroyEventHandlers(); $.Widget.prototype.disable.call(this); }, // This method is exposed to the widget API and allows adding files // using the fileupload API. The data parameter accepts an object which // must have a files property and can contain additional options: // .fileupload('add', {files: filesList}); add: function (data) { if (!data || this.options.disabled) { return; } if (data.fileInput && !data.files) { data.files = this._getFileInputFiles(data.fileInput); } else { data.files = $.each($.makeArray(data.files), this._normalizeFile); } this._onAdd(null, data); }, // This method is exposed to the widget API and allows sending files // using the fileupload API. The data parameter accepts an object which // must have a files property and can contain additional options: // .fileupload('send', {files: filesList}); // The method returns a Promise object for the file upload call. send: function (data) { if (data && !this.options.disabled) { if (data.fileInput && !data.files) { data.files = this._getFileInputFiles(data.fileInput); } else { data.files = $.each($.makeArray(data.files), this._normalizeFile); } if (data.files.length) { return this._onSend(null, data); } } return this._getXHRPromise(false, data && data.context); } }); }));