https://rathgormack.ie/wp-content/themes/entrada/dist/js/components/navigation.js?ver=1758048344

1(function($) {
2  'use strict';
3
4  /**
5   * navigation.js
6   *
7   * Handles toggling the navigation menu for small screens and enables tab
8   * support for dropdown menus.
9   */
10  (function() {
11    var container, button, menu, links, subMenus;
12
13    container = document.getElementById('site-navigation');
14    if (!container) {
15      return;
16    }
17
18    button = container.getElementsByTagName('button')[0];
19    if ('undefined' === typeof button) {
20      return;
21    }
22
23    menu = container.getElementsByTagName('ul')[0];
24
25    // Hide menu toggle button if menu is empty and return early.
26    if ('undefined' === typeof menu) {
27      button.style.display = 'none';
28      return;
29    }
30
31    menu.setAttribute('aria-expanded', 'false');
32    if (-1 === menu.className.indexOf('nav-menu')) {
33      menu.className += ' nav-menu';
34    }
35
36    button.onclick = function() {
37      if (-1 !== container.className.indexOf('toggled')) {
38        container.className = container.className.replace(' toggled', '');
39        button.setAttribute('aria-expanded', 'false');
40        menu.setAttribute('aria-expanded', 'false');
41      } else {
42        container.className += ' toggled';
43        button.setAttribute('aria-expanded', 'true');
44        menu.setAttribute('aria-expanded', 'true');
45      }
46    };
47
48    // Get all the link elements within the menu.
49    links = menu.getElementsByTagName('a');
50    subMenus = menu.getElementsByTagName('ul');
51
52    // Set menu items with submenus to aria-haspopup="true".
53    for (var i = 0, len = subMenus.length; i < len; i++) {
54      subMenus[i].parentNode.setAttribute('aria-haspopup', 'true');
55    }
56
57    // Each time a menu link is focused or blurred, toggle focus.
58    for (i = 0, len = links.length; i < len; i++) {
59      links[i].addEventListener('focus', toggleFocus, true);
60      links[i].addEventListener('blur', toggleFocus, true);
61    }
62
63    /**
64     * Sets or removes .focus class on an element.
65     */
66    function toggleFocus() {
67      var self = this;
68
69      // Move up through the ancestors of the current link until we hit .nav-menu.
70      while (-1 === self.className.indexOf('nav-menu')) {
71        // On li elements toggle the class .focus.
72        if ('li' === self.tagName.toLowerCase()) {
73          if (-1 !== self.className.indexOf('focus')) {
74            self.className = self.className.replace(' focus', '');
75          } else {
76            self.className += ' focus';
77          }
78        }
79
80        self = self.parentElement;
81      }
82    }
83  })();
84})(jQuery);