https://aivengo.media/wp-content/themes/canard/js/navigation.js?ver=20150507

1( function( $ ) {
2
3	var debounce = function( func, wait ) {
4		var timeout, args, context, timestamp;
5		return function() {
6			context = this;
7			args = [].slice.call( arguments, 0 );
8			timestamp = new Date();
9			var later = function() {
10				var last = ( new Date() ) - timestamp;
11				if ( last < wait ) {
12					timeout = setTimeout( later, wait - last );
13				} else {
14					timeout = null;
15					func.apply( context, args );
16				}
17			};
18			if ( ! timeout ) {
19				timeout = setTimeout( later, wait );
20			}
21		};
22	};
23
24	function menuDropdownToggle() {
25		$( '.main-navigation .page_item_has_children > a, .main-navigation .menu-item-has-children > a, .widget_nav_menu .page_item_has_children > a, .widget_nav_menu .menu-item-has-children > a' ).each( function() {
26			if ( ! $( this ).find( '.dropdown-toggle' ).length ) {
27				$( this ).append( '<button class="dropdown-toggle" aria-expanded="false"/>' );
28			}
29		} );
30
31		if ( $( window ).width() > 959 ) {
32			$( '.main-navigation .dropdown-toggle' ).remove();
33		}
34	}
35
36	$( window ).load( menuDropdownToggle ).resize( debounce( menuDropdownToggle, 500 ) );
37
38	$( window ).load( function() {
39		var menu = $( '#masthead' ).find( 'div' );
40		if ( ! menu || ! menu.children().length ) {
41			return;
42		}
43
44		$( '.dropdown-toggle' ).click( function( event ) {
45			event.preventDefault();
46			$( this ).toggleClass( 'toggled' );
47			$( this ).parent().next( '.children, .sub-menu' ).toggleClass( 'toggled' );
48			$( this ).attr( 'aria-expanded', $( this ).attr( 'aria-expanded' ) === 'false' ? 'true' : 'false' );
49		} );
50
51		if ( 'ontouchstart' in window ) {
52			menu.find( '.menu-item-has-children > a' ).on( 'touchstart', function( e ) {
53				var el = $( this ).parent( 'li' );
54
55				if ( ! el.hasClass( 'focus' ) ) {
56					e.preventDefault();
57					el.toggleClass( 'focus' );
58					el.siblings( '.focus' ).removeClass( 'focus' );
59				}
60			} );
61		}
62
63		menu.find( 'a' ).on( 'focus blur', function() {
64			$( this ).parents( '.menu-item' ).toggleClass( 'focus' );
65		} );
66	} );
67
68} )( jQuery );
69
70( function() {
71
72	var container, button, menu;
73
74	container = document.getElementById( 'site-navigation' );
75	if ( ! container ) {
76		return;
77	}
78
79	button = container.getElementsByTagName( 'button' )[0];
80	if ( 'undefined' === typeof button ) {
81		return;
82	}
83
84	menu = container.getElementsByTagName( 'ul' )[0];
85	if ( 'undefined' === typeof menu ) {
86		button.style.display = 'none';
87		return;
88	}
89	menu.setAttribute( 'aria-expanded', 'false' );
90
91	if ( -1 === menu.className.indexOf( 'nav-menu' ) ) {
92		menu.className += ' nav-menu';
93	}
94
95	button.onclick = function() {
96		if ( -1 !== container.className.indexOf( 'toggled' ) ) {
97			container.className = container.className.replace( ' toggled', '' );
98			button.setAttribute( 'aria-expanded', 'false' );
99			menu.setAttribute( 'aria-expanded', 'false' );
100		} else {
101			container.className += ' toggled';
102			button.setAttribute( 'aria-expanded', 'true' );
103			menu.setAttribute( 'aria-expanded', 'true' );
104		}
105	};
106
107} )();