text: /*
  
   * jQuery File Upload Plugin 5.6
  
   * 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, XMLHttpRequestUpload, Blob, File, FormData, location */
  
  
  
  (function (factory) {
  
      'use strict';
  
      if (typeof define === 'function' && define.amd) {
  
          // Register as an anonymous AMD module:
  
          define(['jquery', './vendor/jquery.ui.widget', './jquery.iframe-transport'], factory);
  
      } else {
  
          // Browser globals:
  
          factory(window.jQuery);
  
      }
  
  }(function ($) {
  
      'use strict';
  
  
  
      // 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:
  
              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 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,
  
  
  
              // 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'],
  
  
  
          _isXHRUpload: function (options) {
  
              var undef = 'undefined';
  
              return !options.forceIframeTransport &&
  
                  typeof XMLHttpRequestUpload !== undef && typeof File !== undef &&
  
                  (!options.multipart || typeof FormData !== undef);
  
          },
  
  
  
          _getFormData: function (options) {
  
              var formData;
  
              if (typeof options.formData === 'function') {
  
                  return options.formData(options.form);
  
              } else if ($.isArray(options.formData)) {
  
                  return options.formData;
  
              } else 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 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;
  
                  // 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
  
                  });
  
              }
  
          },
  
  
  
          _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];
  
              if (!options.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 (!options.multipart) {
  
                      // Chunked non-multipart upload:
  
                      options.contentType = 'application/octet-stream';
  
                      options.data = options.blob;
  
                  }
  
              }
  
              if (options.multipart && typeof FormData !== 'undefined') {
  
                  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: options.paramName,
  
                              value: options.blob
  
                          });
  
                      } else {
  
                          $.each(options.files, function (index, file) {
  
                              formData.push({
  
                                  name: options.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(options.paramName, options.blob);
  
                      } 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, file);
  
                              }
  
                          });
  
                      }
  
                  }
  
                  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);
  
          },
  
  
  
          _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');
  
              }
  
          },
  
  
  
          _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'));
  
              }
  
              if (!options.paramName) {
  
                  options.paramName = options.fileInput.prop('name') ||
  
                      'files[]';
  
              }
  
              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');
  
              }
  
              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;
  
              }
  
          },
  
  
  
          _onSend: function (e, data) {
  
              var that = this,
  
                  jqXHR,
  
                  slot,
  
                  pipe,
  
                  options = that._getAJAXSettings(data),
  
                  send = function (resolve, args) {
  
                      that._sending += 1;
  
                      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,
  
                  fileSet,
  
                  i;
  
              if (!(options.singleFileUploads || limit) ||
  
                      !this._isXHRUpload(options)) {
  
                  fileSet = [data.files];
  
              } else if (!options.singleFileUploads && limit) {
  
                  fileSet = [];
  
                  for (i = 0; i < data.files.length; i += limit) {
  
                      fileSet.push(data.files.slice(i, i + limit));
  
                  }
  
              }
  
              data.originalFiles = data.files;
  
              $.each(fileSet || data.files, function (index, element) {
  
                  var files = fileSet ? element : [element],
  
                      newData = $.extend({}, data, {files: files});
  
                  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;
  
              }
  
          },
  
  
  
          _onChange: function (e) {
  
              var that = e.data.fileupload,
  
                  data = {
  
                      files: $.each($.makeArray(e.target.files), that._normalizeFile),
  
                      fileInput: $(e.target),
  
                      form: $(e.target.form)
  
                  };
  
              if (!data.files.length) {
  
                  // 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:
  
                  data.files = [{name: e.target.value.replace(/^.*\\/, '')}];
  
              }
  
              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 = dataTransfer.effectAllowed = 'copy';
  
              }
  
              e.preventDefault();
  
          },
  
  
  
          _initEventHandlers: function () {
  
              var ns = this.options.namespace;
  
              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);
  
          },
  
  
  
          _beforeSetOption: function (key, value) {
  
              this._destroyEventHandlers();
  
          },
  
  
  
          _afterSetOption: function (key, value) {
  
              var options = this.options;
  
              if (!options.fileInput) {
  
                  options.fileInput = $();
  
              }
  
              if (!options.dropZone) {
  
                  options.dropZone = $();
  
              }
  
              this._initEventHandlers();
  
          },
  
  
  
          _setOption: function (key, value) {
  
              var refresh = $.inArray(key, this._refreshOptionsList) !== -1;
  
              if (refresh) {
  
                  this._beforeSetOption(key, value);
  
              }
  
              $.Widget.prototype._setOption.call(this, key, value);
  
              if (refresh) {
  
                  this._afterSetOption(key, value);
  
              }
  
          },
  
  
  
          _create: function () {
  
              var options = this.options;
  
              options.namespace = options.namespace || this.widgetName;
  
              if (options.fileInput === undefined) {
  
                  options.fileInput = this.element.is('input:file') ?
  
                          this.element : this.element.find('input:file');
  
              } else if (!options.fileInput) {
  
                  options.fileInput = $();
  
              }
  
              if (!options.dropZone) {
  
                  options.dropZone = $();
  
              }
  
              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;
  
              }
  
              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) {
  
                  data.files = $.each($.makeArray(data.files), this._normalizeFile);
  
                  if (data.files.length) {
  
                      return this._onSend(null, data);
  
                  }
  
              }
  
              return this._getXHRPromise(false, data && data.context);
  
          }
  
  
  
      });
  
  
  
  }));
  
  