code: function (e) {
                  if (this.$.enabled) {
                      this.removeClass('drag-over');
                      if (e && e.$) {
                          e = e.$;
  
                          if (e.dataTransfer && e.dataTransfer.files.length) {
                              for (var i = 0; i < e.dataTransfer.files.length; i++) {
                                  this._addAndUploadFile(e.dataTransfer.files[i]);
                              }
                          }
                      }
                  }
                  e.preventDefault();
                  e.stopPropagation();
  
                  return false;
              }
docs: An image has been dropped into the design window.
  
  @param {Event} e
  @returns {boolean}