Search.prototype.bind = function()

in adminlte/html/plugins/select2/js/select2.full.js [4098:4168]
52 lines of code
6 McCabe index (conditional complexity)

  Search.prototype.bind = function (decorated, container, $container) {
    var self = this;

    var resultsId = container.id + '-results';

    decorated.call(this, container, $container);

    this.$search.on('keydown', function (evt) {
      self.trigger('keypress', evt);

      self._keyUpPrevented = evt.isDefaultPrevented();
    });

    // Workaround for browsers which do not support the `input` event
    // This will prevent double-triggering of events for browsers which support
    // both the `keyup` and `input` events.
    this.$search.on('input', function (evt) {
      // Unbind the duplicated `keyup` event
      $(this).off('keyup');
    });

    this.$search.on('keyup input', function (evt) {
      self.handleSearch(evt);
    });

    container.on('open', function () {
      self.$search.attr('tabindex', 0);
      self.$search.attr('aria-controls', resultsId);

      self.$search.trigger('focus');

      window.setTimeout(function () {
        self.$search.trigger('focus');
      }, 0);
    });

    container.on('close', function () {
      self.$search.attr('tabindex', -1);
      self.$search.removeAttr('aria-controls');
      self.$search.removeAttr('aria-activedescendant');

      self.$search.val('');
      self.$search.trigger('blur');
    });

    container.on('focus', function () {
      if (!container.isOpen()) {
        self.$search.trigger('focus');
      }
    });

    container.on('results:all', function (params) {
      if (params.query.term == null || params.query.term === '') {
        var showSearch = self.showSearch(params);

        if (showSearch) {
          self.$searchContainer.removeClass('select2-search--hide');
        } else {
          self.$searchContainer.addClass('select2-search--hide');
        }
      }
    });

    container.on('results:focus', function (params) {
      if (params.data._resultId) {
        self.$search.attr('aria-activedescendant', params.data._resultId);
      } else {
        self.$search.removeAttr('aria-activedescendant');
      }
    });
  };