https://www.ristorantecracco.it/wp-content/themes/cracco/js/functions.js?ver=20160816

1/* global screenReaderText */
2/**
3 * Theme functions file.
4 *
5 * Contains handlers for navigation and widget area.
6 */
7
8( function( $ ) {
9	var body, masthead, menuToggle, siteNavigation, socialNavigation, siteHeaderMenu, resizeTimer;
10
11	function initMainNavigation( container ) {
12
13		// Add dropdown toggle that displays child menu items.
14		var dropdownToggle = $( '<button />', {
15			'class': 'dropdown-toggle',
16			'aria-expanded': false
17		} ).append( $( '<span />', {
18			'class': 'screen-reader-text',
19			text: screenReaderText.expand
20		} ) );
21
22		container.find( '.menu-item-has-children > a' ).after( dropdownToggle );
23
24		// Toggle buttons and submenu items with active children menu items.
25		container.find( '.current-menu-ancestor > button' ).addClass( 'toggled-on' );
26		container.find( '.current-menu-ancestor > .sub-menu' ).addClass( 'toggled-on' );
27
28		// Add menu items with submenus to aria-haspopup="true".
29		container.find( '.menu-item-has-children' ).attr( 'aria-haspopup', 'true' );
30
31		container.find( '.dropdown-toggle' ).click( function( e ) {
32			var _this            = $( this ),
33				screenReaderSpan = _this.find( '.screen-reader-text' );
34
35			e.preventDefault();
36			_this.toggleClass( 'toggled-on' );
37			_this.next( '.children, .sub-menu' ).toggleClass( 'toggled-on' );
38
39			// jscs:disable
40			_this.attr( 'aria-expanded', _this.attr( 'aria-expanded' ) === 'false' ? 'true' : 'false' );
41			// jscs:enable
42			screenReaderSpan.text( screenReaderSpan.text() === screenReaderText.expand ? screenReaderText.collapse : screenReaderText.expand );
43		} );
44	}
45	initMainNavigation( $( '.main-navigation' ) );
46
47	masthead         = $( '#masthead' );
48	menuToggle       = masthead.find( '#menu-toggle' );
49	siteHeaderMenu   = masthead.find( '#site-header-menu' );
50	siteNavigation   = masthead.find( '#site-navigation' );
51	socialNavigation = masthead.find( '#social-navigation' );
52
53	// Enable menuToggle.
54	( function() {
55
56		// Return early if menuToggle is missing.
57		if ( ! menuToggle.length ) {
58			return;
59		}
60
61		// Add an initial values for the attribute.
62		menuToggle.add( siteNavigation ).add( socialNavigation ).attr( 'aria-expanded', 'false' );
63
64		menuToggle.on( 'click.twentysixteen', function() {
65			$( this ).add( siteHeaderMenu ).toggleClass( 'toggled-on' );
66
67			// jscs:disable
68			$( this ).add( siteNavigation ).add( socialNavigation ).attr( 'aria-expanded', $( this ).add( siteNavigation ).add( socialNavigation ).attr( 'aria-expanded' ) === 'false' ? 'true' : 'false' );
69			// jscs:enable
70		} );
71	} )();
72
73	// Fix sub-menus for touch devices and better focus for hidden submenu items for accessibility.
74	( function() {
75		if ( ! siteNavigation.length || ! siteNavigation.children().length ) {
76			return;
77		}
78
79		// Toggle `focus` class to allow submenu access on tablets.
80		function toggleFocusClassTouchScreen() {
81			if ( window.innerWidth >= 910 ) {
82				$( document.body ).on( 'touchstart.twentysixteen', function( e ) {
83					if ( ! $( e.target ).closest( '.main-navigation li' ).length ) {
84						$( '.main-navigation li' ).removeClass( 'focus' );
85					}
86				} );
87				siteNavigation.find( '.menu-item-has-children > a' ).on( 'touchstart.twentysixteen', function( e ) {
88					var el = $( this ).parent( 'li' );
89
90					if ( ! el.hasClass( 'focus' ) ) {
91						e.preventDefault();
92						el.toggleClass( 'focus' );
93						el.siblings( '.focus' ).removeClass( 'focus' );
94					}
95				} );
96			} else {
97				siteNavigation.find( '.menu-item-has-children > a' ).unbind( 'touchstart.twentysixteen' );
98			}
99		}
100
101		if ( 'ontouchstart' in window ) {
102			$( window ).on( 'resize.twentysixteen', toggleFocusClassTouchScreen );
103			toggleFocusClassTouchScreen();
104		}
105
106		siteNavigation.find( 'a' ).on( 'focus.twentysixteen blur.twentysixteen', function() {
107			$( this ).parents( '.menu-item' ).toggleClass( 'focus' );
108		} );
109	} )();
110
111	// Add the default ARIA attributes for the menu toggle and the navigations.
112	function onResizeARIA() {
113		if ( window.innerWidth < 910 ) {
114			if ( menuToggle.hasClass( 'toggled-on' ) ) {
115				menuToggle.attr( 'aria-expanded', 'true' );
116			} else {
117				menuToggle.attr( 'aria-expanded', 'false' );
118			}
119
120			if ( siteHeaderMenu.hasClass( 'toggled-on' ) ) {
121				siteNavigation.attr( 'aria-expanded', 'true' );
122				socialNavigation.attr( 'aria-expanded', 'true' );
123			} else {
124				siteNavigation.attr( 'aria-expanded', 'false' );
125				socialNavigation.attr( 'aria-expanded', 'false' );
126			}
127
128			menuToggle.attr( 'aria-controls', 'site-navigation social-navigation' );
129		} else {
130			menuToggle.removeAttr( 'aria-expanded' );
131			siteNavigation.removeAttr( 'aria-expanded' );
132			socialNavigation.removeAttr( 'aria-expanded' );
133			menuToggle.removeAttr( 'aria-controls' );
134		}
135	}
136
137	// Add 'below-entry-meta' class to elements.
138	function belowEntryMetaClass( param ) {
139		if ( body.hasClass( 'page' ) || body.hasClass( 'search' ) || body.hasClass( 'single-attachment' ) || body.hasClass( 'error404' ) ) {
140			return;
141		}
142
143		$( '.entry-content' ).find( param ).each( function() {
144			var element              = $( this ),
145				elementPos           = element.offset(),
146				elementPosTop        = elementPos.top,
147				entryFooter          = element.closest( 'article' ).find( '.entry-footer' ),
148				entryFooterPos       = entryFooter.offset(),
149				entryFooterPosBottom = entryFooterPos.top + ( entryFooter.height() + 28 ),

150				caption              = element.closest( 'figure' ),
151				newImg;
152
153			// Add 'below-entry-meta' to elements below the entry meta.
154			if ( elementPosTop > entryFooterPosBottom ) {
155
156				// Check if full-size images and captions are larger than or equal to 840px.
157				if ( 'img.size-full' === param ) {
158
159					// Create an image to find native image width of resized images (i.e. max-width: 100%).
160					newImg = new Image();
161					newImg.src = element.attr( 'src' );
162
163					$( newImg ).on( 'load.twentysixteen', function() {
164						if ( newImg.width >= 840  ) {
165							element.addClass( 'below-entry-meta' );
166
167							if ( caption.hasClass( 'wp-caption' ) ) {
168								caption.addClass( 'below-entry-meta' );
169								caption.removeAttr( 'style' );
170							}
171						}
172					} );
173				} else {
174					element.addClass( 'below-entry-meta' );
175				}
176			} else {
177				element.removeClass( 'below-entry-meta' );
178				caption.removeClass( 'below-entry-meta' );
179			}
180		} );
181	}
182
183	$( document ).ready( function() {
184		body = $( document.body );
185
186		$( window )
187			.on( 'load.twentysixteen', onResizeARIA )
188			.on( 'resize.twentysixteen', function() {
189				clearTimeout( resizeTimer );
190				resizeTimer = setTimeout( function() {
191					belowEntryMetaClass( 'img.size-full' );
192					belowEntryMetaClass( 'blockquote.alignleft, blockquote.alignright' );
193				}, 300 );
194				onResizeARIA();
195			} );
196
197		belowEntryMetaClass( 'img.size-full' );
198		belowEntryMetaClass( 'blockquote.alignleft, blockquote.alignright' );
199	} );
200} )( jQuery );