https://colemotorcarregistry.com/wp-content/themes/twentyfifteen/js/functions.js?ver=20150330

1/* global screenReaderText */
2/**
3 * Theme functions file.
4 *
5 * Contains handlers for navigation and widget area.
6 */
7
8( function( $ ) {
9	var $body, $window, $sidebar, adminbarOffset, top = false,
10	    bottom = false, windowWidth, windowHeight, lastWindowPos = 0,
11	    topOffset = 0, bodyHeight, sidebarHeight, resizeTimer,
12	    secondary, button;
13
14	function initMainNavigation( container ) {
15		// Add dropdown toggle that display child menu items.
16		container.find( '.menu-item-has-children > a' ).after( '<button class="dropdown-toggle" aria-expanded="false">' + screenReaderText.expand + '</button>' );
17
18		// Toggle buttons and submenu items with active children menu items.
19		container.find( '.current-menu-ancestor > button' ).addClass( 'toggle-on' );
20		container.find( '.current-menu-ancestor > .sub-menu' ).addClass( 'toggled-on' );
21
22		container.find( '.dropdown-toggle' ).click( function( e ) {
23			var _this = $( this );
24			e.preventDefault();
25			_this.toggleClass( 'toggle-on' );
26			_this.next( '.children, .sub-menu' ).toggleClass( 'toggled-on' );
27			_this.attr( 'aria-expanded', _this.attr( 'aria-expanded' ) === 'false' ? 'true' : 'false' );
28			_this.html( _this.html() === screenReaderText.expand ? screenReaderText.collapse : screenReaderText.expand );
29		} );
30	}
31	initMainNavigation( $( '.main-navigation' ) );
32
33	// Re-initialize the main navigation when it is updated, persisting any existing submenu expanded states.
34	$( document ).on( 'customize-preview-menu-refreshed', function( e, params ) {
35		if ( 'primary' === params.wpNavMenuArgs.theme_location ) {
36			initMainNavigation( params.newContainer );
37
38			// Re-sync expanded states from oldContainer.
39			params.oldContainer.find( '.dropdown-toggle.toggle-on' ).each(function() {
40				var containerId = $( this ).parent().prop( 'id' );
41				$( params.newContainer ).find( '#' + containerId + ' > .dropdown-toggle' ).triggerHandler( 'click' );
42			});
43		}
44	});
45
46	secondary = $( '#secondary' );
47	button = $( '.site-branding' ).find( '.secondary-toggle' );
48
49	// Enable menu toggle for small screens.
50	( function() {
51		var menu, widgets, social;
52		if ( ! secondary.length || ! button.length ) {
53			return;
54		}
55
56		// Hide button if there are no widgets and the menus are missing or empty.
57		menu    = secondary.find( '.nav-menu' );
58		widgets = secondary.find( '#widget-area' );
59		social  = secondary.find( '#social-navigation' );
60		if ( ! widgets.length && ! social.length && ( ! menu.length || ! menu.children().length ) ) {
61			button.hide();
62			return;
63		}
64
65		button.on( 'click.twentyfifteen', function() {
66			secondary.toggleClass( 'toggled-on' );
67			secondary.trigger( 'resize' );
68			$( this ).toggleClass( 'toggled-on' );
69			if ( $( this, secondary ).hasClass( 'toggled-on' ) ) {
70				$( this ).attr( 'aria-expanded', 'true' );
71				secondary.attr( 'aria-expanded', 'true' );
72			} else {
73				$( this ).attr( 'aria-expanded', 'false' );
74				secondary.attr( 'aria-expanded', 'false' );
75			}
76		} );
77	} )();
78
79	/**
80	 * @summary Add or remove ARIA attributes.
81	 * Uses jQuery's width() function to determine the size of the window and add
82	 * the default ARIA attributes for the menu toggle if it's visible.
83	 * @since Twenty Fifteen 1.1
84	 */
85	function onResizeARIA() {
86		if ( 955 > $window.width() ) {
87			button.attr( 'aria-expanded', 'false' );
88			secondary.attr( 'aria-expanded', 'false' );
89			button.attr( 'aria-controls', 'secondary' );
90		} else {
91			button.removeAttr( 'aria-expanded' );
92			secondary.removeAttr( 'aria-expanded' );
93			button.removeAttr( 'aria-controls' );
94		}
95	}
96
97	// Sidebar scrolling.
98	function resize() {
99		windowWidth = $window.width();
100
101		if ( 955 > windowWidth ) {
102			top = bottom = false;
103			$sidebar.removeAttr( 'style' );
104		}
105	}
106
107	function scroll() {
108		var windowPos = $window.scrollTop();
109
110		if ( 955 > windowWidth ) {
111			return;
112		}
113
114		sidebarHeight = $sidebar.height();
115		windowHeight  = $window.height();
116		bodyHeight    = $body.height();
117
118		if ( sidebarHeight + adminbarOffset > windowHeight ) {
119			if ( windowPos > lastWindowPos ) {
120				if ( top ) {
121					top = false;
122					topOffset = ( $sidebar.offset().top >

122 0 ) ? $sidebar.offset().top - adminbarOffset : 0;
123					$sidebar.attr( 'style', 'top: ' + topOffset + 'px;' );
124				} else if ( ! bottom && windowPos + windowHeight > sidebarHeight + $sidebar.offset().top && sidebarHeight + adminbarOffset < bodyHeight ) {
125					bottom = true;
126					$sidebar.attr( 'style', 'position: fixed; bottom: 0;' );
127				}
128			} else if ( windowPos < lastWindowPos ) {
129				if ( bottom ) {
130					bottom = false;
131					topOffset = ( $sidebar.offset().top > 0 ) ? $sidebar.offset().top - adminbarOffset : 0;
132					$sidebar.attr( 'style', 'top: ' + topOffset + 'px;' );
133				} else if ( ! top && windowPos + adminbarOffset < $sidebar.offset().top ) {
134					top = true;
135					$sidebar.attr( 'style', 'position: fixed;' );
136				}
137			} else {
138				top = bottom = false;
139				topOffset = ( $sidebar.offset().top > 0 ) ? $sidebar.offset().top - adminbarOffset : 0;
140				$sidebar.attr( 'style', 'top: ' + topOffset + 'px;' );
141			}
142		} else if ( ! top ) {
143			top = true;
144			$sidebar.attr( 'style', 'position: fixed;' );
145		}
146
147		lastWindowPos = windowPos;
148	}
149
150	function resizeAndScroll() {
151		resize();
152		scroll();
153	}
154
155	$( document ).ready( function() {
156		$body          = $( document.body );
157		$window        = $( window );
158		$sidebar       = $( '#sidebar' ).first();
159		adminbarOffset = $body.is( '.admin-bar' ) ? $( '#wpadminbar' ).height() : 0;
160
161		$window
162			.on( 'scroll.twentyfifteen', scroll )
163			.on( 'load.twentyfifteen', onResizeARIA )
164			.on( 'resize.twentyfifteen', function() {
165				clearTimeout( resizeTimer );
166				resizeTimer = setTimeout( resizeAndScroll, 500 );
167				onResizeARIA();
168			} );
169		$sidebar.on( 'click.twentyfifteen keydown.twentyfifteen', 'button', resizeAndScroll );
170
171		resizeAndScroll();
172
173		for ( var i = 1; i < 6; i++ ) {
174			setTimeout( resizeAndScroll, 100 * i );
175		}
176	} );
177
178} )( jQuery );
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