https://www.tbn.org/themes/custom/tbnnet/js/keyboard-actions.js?tlkm0r

1/**
2 * @file
3 * Javascript functionality for all keyboard actions.
4 */
5
6(function ($, Drupal) {
7
8  'use strict';
9
10  Drupal.behaviors.tbnnetKeyboardActions = {
11    attach: function (context) {
12      // Remove tabindex for slide item
13      $('div.episode-wrapper.slick-slide').attr('tabindex', -1);
14
15      $('body').once('keyupAction').on('keyup.keyboardActions', function (event) {
16        var $target = $(event.target);
17        var $target_parent = $target.parent();
18
19        // Tab keycode == 9
20        if (event.keyCode === 9) {
21          // Remove open class if target is not submenu
22          if (!$target.closest('ul.dropdown-menu').length) {
23            $('.menu.menu--main > li.menu-icon').removeClass('open');
24          }
25          if ($target.hasClass('slick-slide')) {
26            // focus to next item and remove tabindex
27            $target.attr('tabindex', -1);
28            $target.find('a:first').focus();
29          }
30        }
31        // Enter keycode == 13
32        else if (event.keyCode === 13) {
33          if ($target.hasClass('caret') && $target_parent.hasClass('dropdown-toggle')) {
34            var $menuLi = $target.closest('li.menu-icon');
35            $menuLi.addClass('open');
36          }
37          if ($target_parent.hasClass('day-controls')) {
38            $target.trigger('click');
39          }
40          if ($target_parent.hasClass('title-column')) {
41            $target.closest('tr.episode-row.selected-day').trigger('click');
42          }
43        }
44      });
45    }
46  };
47
48})(jQuery, Drupal);