text: /* 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 displays 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.trefoilcultural', 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 ) {
  				$( document.body ).on( 'touchstart.trefoilcultural', function( e ) {
  					if ( ! $( e.target ).closest( '.main-navigation li' ).length ) {
  						$( '.main-navigation li' ).removeClass( 'focus' );
  					}
  				} );
  				siteNavigation.find( '.menu-item-has-children > a' ).on( 'touchstart.trefoilcultural', 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.trefoilcultural' );
  			}
  		}
  
  		if ( 'ontouchstart' in window ) {
  			$( window ).on( 'resize.trefoilcultural', toggleFocusClassTouchScreen );
  			toggleFocusClassTouchScreen();
  		}
  
  		siteNavigation.find( 'a' ).on( 'focus.trefoilcultural blur.trefoilcultural', 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 ).on( 'load.trefoilcultural', 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.trefoilcultural', onResizeARIA )
  			.on( 'resize.trefoilcultural', 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 );
  