code: function QuickNavigateDialog() {
          this.$searchField = undefined; // defined when showDialog() is called
  
          // ModalBar event handlers & callbacks
          this._handleCloseBar           = this._handleCloseBar.bind(this);
  
          // QuickSearchField callbacks
          this._handleItemSelect         = this._handleItemSelect.bind(this);
          this._handleItemHighlight      = this._handleItemHighlight.bind(this);
          this._filterCallback           = this._filterCallback.bind(this);
          this._resultsFormatterCallback = this._resultsFormatterCallback.bind(this);
  
          // StringMatchers that cache in-progress query data.
          this._filenameMatcher           = new StringMatch.StringMatcher({
              segmentedSearch: true
          });
          this._matchers                  = {};
      }
docs: QuickNavigateDialog class
  @constructor