GitLabDropdownFilter.prototype.filter = function()

in app/assets/javascripts/gl_dropdown.js [142:213]
55 lines of code
12 McCabe index (conditional complexity)

  GitLabDropdownFilter.prototype.filter = function(search_text) {
    var data, elements, group, key, results, tmp;
    if (this.options.onFilter) {
      this.options.onFilter(search_text);
    }
    data = this.options.data();
    if (data != null && !this.options.filterByText) {
      results = data;
      if (search_text !== '') {
        // When data is an array of objects therefore [object Array] e.g.
        // [
        //   { prop: 'foo' },
        //   { prop: 'baz' }
        // ]
        if (_.isArray(data)) {
          results = fuzzaldrinPlus.filter(data, search_text, {
            key: this.options.keys,
          });
        } else {
          // If data is grouped therefore an [object Object]. e.g.
          // {
          //   groupName1: [
          //     { prop: 'foo' },
          //     { prop: 'baz' }
          //   ],
          //   groupName2: [
          //     { prop: 'abc' },
          //     { prop: 'def' }
          //   ]
          // }
          if (isObject(data)) {
            results = {};
            for (key in data) {
              group = data[key];
              tmp = fuzzaldrinPlus.filter(group, search_text, {
                key: this.options.keys,
              });
              if (tmp.length) {
                results[key] = tmp.map(function(item) {
                  return item;
                });
              }
            }
          }
        }
      }
      return this.options.callback(results);
    } else {
      elements = this.options.elements();
      if (search_text) {
        elements.each(function() {
          var $el, matches;
          $el = $(this);
          matches = fuzzaldrinPlus.match($el.text().trim(), search_text);
          if (!$el.is('.dropdown-header')) {
            if (matches.length) {
              return $el.show().removeClass('option-hidden');
            } else {
              return $el.hide().addClass('option-hidden');
            }
          }
        });
      } else {
        elements.show().removeClass('option-hidden');
      }

      elements
        .parent()
        .find('.dropdown-menu-empty-item')
        .toggleClass('hidden', elements.is(':visible'));
    }
  };