code: function _handleEditFilter(e) {
          var filterSets  = PreferencesManager.get("fileFilters") || [],
              filterIndex = $(e.target).parent().data("index") - FIRST_FILTER_INDEX;
  
          // Don't let the click bubble upward.
          e.stopPropagation();
  
          // Close the dropdown first before opening the edit filter dialog
          // so that it will restore focus to the DOM element that has focus
          // prior to opening it.
          _picker.closeDropdown();
  
          editFilter(filterSets[filterIndex], filterIndex);
      }
docs: Close filter dropdwon list and launch edit filter dialog.
  @param {!Event} e Mouse events