toggleLabel: function()

in app/assets/javascripts/labels_select.js [332:364]
29 lines of code
12 McCabe index (conditional complexity)

        toggleLabel: function(selected, el) {
          var $dropdownParent = $dropdown.parent();
          var $dropdownInputField = $dropdownParent.find('.dropdown-input-field');
          var isSelected = el !== null ? el.hasClass('is-active') : false;

          var title = selected ? selected.title : null;
          var selectedLabels = this.selected;

          if ($dropdownInputField.length && $dropdownInputField.val().length) {
            $dropdownParent.find('.dropdown-input-clear').trigger('click');
          }

          if (selected && selected.id === 0) {
            this.selected = [];
            return __('No Label');
          } else if (isSelected) {
            this.selected.push(title);
          } else if (!isSelected && title) {
            var index = this.selected.indexOf(title);
            this.selected.splice(index, 1);
          }

          if (selectedLabels.length === 1) {
            return selectedLabels;
          } else if (selectedLabels.length) {
            return sprintf(__('%{firstLabel} +%{labelCount} more'), {
              firstLabel: selectedLabels[0],
              labelCount: selectedLabels.length - 1,
            });
          } else {
            return defaultLabel;
          }
        },