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- /* global screenReaderText */
- /**
- * Theme functions file.
- *
- * Contains handlers for navigation and widget area.
- */
- ( function( $ ) {
- var body, masthead, menuToggle, siteNavigation, socialNavigation, siteHeaderMenu, resizeTimer;
- function initMainNavigation( container ) {
- // Add dropdown toggle that display child menu items.
- var dropdownToggle = $( '<button />', {
- 'class': 'dropdown-toggle',
- 'aria-expanded': false
- } ).append( $( '<span />', {
- 'class': 'screen-reader-text',
- text: screenReaderText.expand
- } ) );
- container.find( '.menu-item-has-children > a' ).after( dropdownToggle );
- // Toggle buttons and submenu items with active children menu items.
- container.find( '.current-menu-ancestor > button' ).addClass( 'toggled-on' );
- container.find( '.current-menu-ancestor > .sub-menu' ).addClass( 'toggled-on' );
- // Add menu items with submenus to aria-haspopup="true".
- container.find( '.menu-item-has-children' ).attr( 'aria-haspopup', 'true' );
- container.find( '.dropdown-toggle' ).click( function( e ) {
- var _this = $( this ),
- screenReaderSpan = _this.find( '.screen-reader-text' );
- e.preventDefault();
- _this.toggleClass( 'toggled-on' );
- _this.next( '.children, .sub-menu' ).toggleClass( 'toggled-on' );
- // jscs:disable
- _this.attr( 'aria-expanded', _this.attr( 'aria-expanded' ) === 'false' ? 'true' : 'false' );
- // jscs:enable
- screenReaderSpan.text( screenReaderSpan.text() === screenReaderText.expand ? screenReaderText.collapse : screenReaderText.expand );
- } );
- }
- initMainNavigation( $( '.main-navigation' ) );
- masthead = $( '#masthead' );
- menuToggle = masthead.find( '#menu-toggle' );
- siteHeaderMenu = masthead.find( '#site-header-menu' );
- siteNavigation = masthead.find( '#site-navigation' );
- socialNavigation = masthead.find( '#social-navigation' );
- // Enable menuToggle.
- ( function() {
- // Return early if menuToggle is missing.
- if ( ! menuToggle.length ) {
- return;
- }
- // Add an initial values for the attribute.
- menuToggle.add( siteNavigation ).add( socialNavigation ).attr( 'aria-expanded', 'false' );
- menuToggle.on( 'click.twentysixteen', function() {
- $( this ).add( siteHeaderMenu ).toggleClass( 'toggled-on' );
- // jscs:disable
- $( this ).add( siteNavigation ).add( socialNavigation ).attr( 'aria-expanded', $( this ).add( siteNavigation ).add( socialNavigation ).attr( 'aria-expanded' ) === 'false' ? 'true' : 'false' );
- // jscs:enable
- } );
- } )();
- // Fix sub-menus for touch devices and better focus for hidden submenu items for accessibility.
- ( function() {
- if ( ! siteNavigation.length || ! siteNavigation.children().length ) {
- return;
- }
- // Toggle `focus` class to allow submenu access on tablets.
- function toggleFocusClassTouchScreen() {
- if ( window.innerWidth > 910 ) {
- siteNavigation.find( '.menu-item-has-children > a' ).on( 'touchstart.twentysixteen', function( e ) {
- var el = $( this ).parent( 'li' );
- if ( ! el.hasClass( 'focus' ) ) {
- e.preventDefault();
- el.toggleClass( 'focus' );
- el.siblings( '.focus' ).removeClass( 'focus' );
- }
- } );
- } else {
- siteNavigation.find( '.menu-item-has-children > a' ).unbind( 'touchstart.twentysixteen' );
- }
- }
- if ( 'ontouchstart' in window ) {
- $( window ).on( 'resize.twentysixteen', toggleFocusClassTouchScreen );
- toggleFocusClassTouchScreen();
- }
- siteNavigation.find( 'a' ).on( 'focus.twentysixteen blur.twentysixteen', function() {
- $( this ).parents( '.menu-item' ).toggleClass( 'focus' );
- } );
- } )();
- // Add the default ARIA attributes for the menu toggle and the navigations.
- function onResizeARIA() {
- if ( window.innerWidth < 910 ) {
- if ( menuToggle.hasClass( 'toggled-on' ) ) {
- menuToggle.attr( 'aria-expanded', 'true' );
- } else {
- menuToggle.attr( 'aria-expanded', 'false' );
- }
- if ( siteHeaderMenu.hasClass( 'toggled-on' ) ) {
- siteNavigation.attr( 'aria-expanded', 'true' );
- socialNavigation.attr( 'aria-expanded', 'true' );
- } else {
- siteNavigation.attr( 'aria-expanded', 'false' );
- socialNavigation.attr( 'aria-expanded', 'false' );
- }
- menuToggle.attr( 'aria-controls', 'site-navigation social-navigation' );
- } else {
- menuToggle.removeAttr( 'aria-expanded' );
- siteNavigation.removeAttr( 'aria-expanded' );
- socialNavigation.removeAttr( 'aria-expanded' );
- menuToggle.removeAttr( 'aria-controls' );
- }
- }
- // Add 'below-entry-meta' class to elements.
- function belowEntryMetaClass( param ) {
- if ( body.hasClass( 'page' ) || body.hasClass( 'search' ) || body.hasClass( 'single-attachment' ) || body.hasClass( 'error404' ) ) {
- return;
- }
- $( '.entry-content' ).find( param ).each( function() {
- var element = $( this ),
- elementPos = element.offset(),
- elementPosTop = elementPos.top,
- entryFooter = element.closest( 'article' ).find( '.entry-footer' ),
- entryFooterPos = entryFooter.offset(),
- entryFooterPosBottom = entryFooterPos.top + ( entryFooter.height() + 28 ),
- caption = element.closest( 'figure' ),
- newImg;
- // Add 'below-entry-meta' to elements below the entry meta.
- if ( elementPosTop > entryFooterPosBottom ) {
- // Check if full-size images and captions are larger than or equal to 840px.
- if ( 'img.size-full' === param ) {
- // Create an image to find native image width of resized images (i.e. max-width: 100%).
- newImg = new Image();
- newImg.src = element.attr( 'src' );
- $( newImg ).load( function() {
- if ( newImg.width >= 840 ) {
- element.addClass( 'below-entry-meta' );
- if ( caption.hasClass( 'wp-caption' ) ) {
- caption.addClass( 'below-entry-meta' );
- caption.removeAttr( 'style' );
- }
- }
- } );
- } else {
- element.addClass( 'below-entry-meta' );
- }
- } else {
- element.removeClass( 'below-entry-meta' );
- caption.removeClass( 'below-entry-meta' );
- }
- } );
- }
- $( document ).ready( function() {
- body = $( document.body );
- $( window )
- .on( 'load.twentysixteen', onResizeARIA )
- .on( 'resize.twentysixteen', function() {
- clearTimeout( resizeTimer );
- resizeTimer = setTimeout( function() {
- belowEntryMetaClass( 'img.size-full' );
- belowEntryMetaClass( 'blockquote.alignleft, blockquote.alignright' );
- }, 300 );
- onResizeARIA();
- } );
- belowEntryMetaClass( 'img.size-full' );
- belowEntryMetaClass( 'blockquote.alignleft, blockquote.alignright' );
- } );
- } )( jQuery );
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