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+/*
+ * jQuery File Upload Plugin 5.13
+ * 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 = $.extend({}, options);
+ o.blob = slice.call(
+ file,
+ ub + i * mcs,
+ ub + (i + 1) * mcs
+ );
+ // Expose the chunk index:
+ o.chunkIndex = i;
+ // Expose the number of chunks:
+ o.chunksNumber = n;
+ // Store the current chunk size, as the blob itself
+ // will be dereferenced after data processing:
+ o.chunkSize = o.blob.size;
+ // Process the upload data (the blob and potential form data):
+ that._initXHRData(o);
+ // Add progress listeners for this chunk upload:
+ that._initProgressListener(o);
+ jqXHR = ($.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);
+ }
+
+ });
+
+}));
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-08 05:45:53 +0000