https://endeavors.org/wp-content/themes/endeavors/js/navigation.js?ver=20151215

1// /**
2//  * File navigation.js.
3//  *
4//  * Handles toggling the navigation menu for small screens and enables TAB key
5//  * navigation support for dropdown menus.
6//  */
7// ( function() {
8// 	var container, button, menu, links, i, len;
9
10// 	container = document.getElementById( 'site-navigation' );
11// 	if ( ! container ) {
12// 		return;
13// 	}
14
15// 	button = container.getElementsByTagName( 'button' )[0];
16// 	if ( 'undefined' === typeof button ) {
17// 		return;
18// 	}
19
20// 	menu = container.getElementsByTagName( 'ul' )[0];
21
22// 	// Hide menu toggle button if menu is empty and return early.
23// 	if ( 'undefined' === typeof menu ) {
24// 		button.style.display = 'none';
25// 		return;
26// 	}
27
28// 	menu.setAttribute( 'aria-expanded', 'false' );
29// 	if ( -1 === menu.className.indexOf( 'nav-menu' ) ) {
30// 		menu.className += ' nav-menu';
31// 	}
32
33// 	button.onclick = function() {
34// 		if ( -1 !== container.className.indexOf( 'toggled' ) ) {
35// 			container.className = container.className.replace( ' toggled', '' );
36// 			button.setAttribute( 'aria-expanded', 'false' );
37// 			menu.setAttribute( 'aria-expanded', 'false' );
38// 		} else {
39// 			container.className += ' toggled';
40// 			button.setAttribute( 'aria-expanded', 'true' );
41// 			menu.setAttribute( 'aria-expanded', 'true' );
42// 		}
43// 	};
44
45// 	// Get all the link elements within the menu.
46// 	links    = menu.getElementsByTagName( 'a' );
47
48// 	// Each time a menu link is focused or blurred, toggle focus.
49// 	for ( i = 0, len = links.length; i < len; i++ ) {
50// 		links[i].addEventListener( 'focus', toggleFocus, true );
51// 		links[i].addEventListener( 'blur', toggleFocus, true );
52// 	}
53
54// 	/**
55// 	 * Sets or removes .focus class on an element.
56// 	 */
57// 	function toggleFocus() {
58// 		var self = this;
59
60// 		// Move up through the ancestors of the current link until we hit .nav-menu.
61// 		while ( -1 === self.className.indexOf( 'nav-menu' ) ) {
62
63// 			// On li elements toggle the class .focus.
64// 			if ( 'li' === self.tagName.toLowerCase() ) {
65// 				if ( -1 !== self.className.indexOf( 'focus' ) ) {
66// 					self.className = self.className.replace( ' focus', '' );
67// 				} else {
68// 					self.className += ' focus';
69// 				}
70// 			}
71
72// 			self = self.parentElement;
73// 		}
74// 	}
75
76// 	/**
77// 	 * Toggles `focus` class to allow submenu access on tablets.
78// 	 */
79// 	( function( container ) {
80// 		var touchStartFn, i,
81// 			parentLink = container.querySelectorAll( '.menu-item-has-children > a, .page_item_has_children > a' );
82
83// 		if ( 'ontouchstart' in window ) {
84// 			touchStartFn = function( e ) {
85// 				var menuItem = this.parentNode, i;
86
87// 				if ( ! menuItem.classList.contains( 'focus' ) ) {
88// 					e.preventDefault();
89// 					for ( i = 0; i < menuItem.parentNode.children.length; ++i ) {
90// 						if ( menuItem === menuItem.parentNode.children[i] ) {
91// 							continue;
92// 						}
93// 						menuItem.parentNode.children[i].classList.remove( 'focus' );
94// 					}
95// 					menuItem.classList.add( 'focus' );
96// 				} else {
97// 					menuItem.classList.remove( 'focus' );
98// 				}
99// 			};
100
101// 			for ( i = 0; i < parentLink.length; ++i ) {
102// 				parentLink[i].addEventListener( 'touchstart', touchStartFn, false );
103// 			}
104// 		}
105// 	}( container ) );
106// } )();