https://www.isham2025.org/resources/themes/vetdigital/js/navigation.js?ver=1.0.0

1
2const siteHeader = document.querySelector('.site-header');
3      siteMobileNavToggle = document.querySelector('.site-header__toggle-nav'),
4      siteMainWrapper = document.querySelector('.site-header__nav-wrapper');
5
6siteMobileNavToggle.addEventListener('click', function(e){
7  siteHeader.classList.toggle('site-header--toggle');
8  siteMobileNavToggle.classList.toggle('site-header__toggle-nav--open');
9  siteMainWrapper.classList.toggle('site-header__nav-wrapper--toggle');
10});
11
12
13// Add element for mobile toggle
14var li_links = document.querySelectorAll('.site-header .menu-item-has-children > a');
15
16li_links.forEach(function(el) {
17  el.innerHTML = el.innerHTML + '<a href="#" class="menu-item-link-arrow" aria-label="Toggle menu"></a>';
18  el.setAttribute('aria-expanded','false');
19});
20
21// Mobile arrows toggle
22var arrows = document.querySelectorAll('.site-header .menu-item-has-children > a > .menu-item-link-arrow');
23arrows.forEach(function(el) {
24  el.onclick = function(event) {
25    // Add toggle class to button
26    event.preventDefault();
27    el.classList.toggle('menu-item-link-arrow--toggle');
28    el.parentElement.classList.toggle('menu-item--toggle');
29    var aria = el.parentElement.getAttribute('aria-expanded');
30    if(aria == 'false'){
31      el.parentElement.setAttribute('aria-expanded','true');
32    }
33    if(aria == 'true'){
34      el.parentElement.setAttribute('aria-expanded','false');
35    }
36  }
37});
38
39
40/**
41 * File navigation.js.
42 *
43 * Handles toggling the navigation menu for small screens and enables TAB key
44 * navigation support for dropdown menus.
45 */
46( function() {
47	const siteNavigation = document.getElementById( 'site-navigation' );
48
49	// Return early if the navigation doesn't exist.
50	if ( ! siteNavigation ) {
51		return;
52	}
53
54	const button = siteNavigation.getElementsByTagName( 'button' )[ 0 ];
55
56	// Return early if the button doesn't exist.
57	if ( 'undefined' === typeof button ) {
58		return;
59	}
60
61	const menu = siteNavigation.getElementsByTagName( 'ul' )[ 0 ];
62
63	// Hide menu toggle button if menu is empty and return early.
64	if ( 'undefined' === typeof menu ) {
65		button.style.display = 'none';
66		return;
67	}
68
69	if ( ! menu.classList.contains( 'nav-menu' ) ) {
70		menu.classList.add( 'nav-menu' );
71	}
72
73	// Toggle the .toggled class and the aria-expanded value each time the button is clicked.
74	button.addEventListener( 'click', function() {
75		siteNavigation.classList.toggle( 'toggled' );
76
77		if ( button.getAttribute( 'aria-expanded' ) === 'true' ) {
78			button.setAttribute( 'aria-expanded', 'false' );
79		} else {
80			button.setAttribute( 'aria-expanded', 'true' );
81		}
82	} );
83
84	// Remove the .toggled class and set aria-expanded to false when the user clicks outside the navigation.
85	document.addEventListener( 'click', function( event ) {
86		const isClickInside = siteNavigation.contains( event.target );
87
88		if ( ! isClickInside ) {
89			siteNavigation.classList.remove( 'toggled' );
90			button.setAttribute( 'aria-expanded', 'false' );
91		}
92	} );
93
94	// Get all the link elements within the menu.
95	const links = menu.getElementsByTagName( 'a' );
96
97	// Get all the link elements with children within the menu.
98	const linksWithChildren = menu.querySelectorAll( '.menu-item-has-children > a, .page_item_has_children > a' );
99
100	// Toggle focus each time a menu link is focused or blurred.
101	for ( const link of links ) {
102		link.addEventListener( 'focus', toggleFocus, true );
103		link.addEventListener( 'blur', toggleFocus, true );
104	}
105
106	// Toggle focus each time a menu link with children receive a touch event.
107	for ( const link of linksWithChildren ) {
108		link.addEventListener( 'touchstart', toggleFocus, false );
109	}
110
111	/**
112	 * Sets or removes .focus class on an element.
113	 */
114	function toggleFocus() {
115		if ( event.type === 'focus' || event.type === 'blur' ) {
116			let self = this;
117			// Move up through the ancestors of the current link until we hit .nav-menu.
118			while ( ! self.classList.contains( 'nav-menu' ) ) {
119				// On li elements toggle the class .focus.
120				if ( 'li' === self.tagName.toLowerCase() ) {
121					self.classList.toggle( 'focus' );
122				}
123				self = self.parentNode;
124			}
125		}
126
127		if ( event.type === 'touchstart' ) {
128			const menuItem = this.parentNode;
129			event.preventDefault();
130			for ( const link of menuItem.parentNode.children ) {
131				if ( menuItem !== link ) {
132					link.classList.remove( 'focus' );
133				}
134			}
135			menuItem.classList.toggle( 'focus' );
136		}
137	}
138}() );