text: /**
   * File navigation.js.
   *
   * Handles toggling the navigation menu for small screens and enables TAB key
   * navigation support for dropdown menus.
   */
  (function( $ ) {
  	var masthead, menuToggle, siteNavContain, siteNavigation;
  
  	function initMainNavigation( container ) {
  
  		// Add dropdown toggle that displays child menu items.
  		var dropdownToggle = $( '<button />', { 'class': 'dropdown-toggle', 'aria-expanded': false })
  			.append( kingston_l10n.icon )
  			.append( $( '<span />', { 'class': 'screen-reader-text', text: kingston_l10n.expand }) );
  
  		container.find( '.menu-item-has-children > a, .page_item_has_children > a' ).after( dropdownToggle );
  
  		// Set the active submenu dropdown toggle button initial state.
  		container.find( '.current-menu-ancestor > button' )
  			.addClass( 'toggled-on' )
  			.attr( 'aria-expanded', 'true' )
  			.find( '.screen-reader-text' )
  			.text( kingston_l10n.collapse );
  		// Set the active submenu initial state.
  		container.find( '.current-menu-ancestor > .sub-menu' ).addClass( 'toggled-on' );
  
  		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' );
  
  			_this.attr( 'aria-expanded', _this.attr( 'aria-expanded' ) === 'false' ? 'true' : 'false' );
  
  			screenReaderSpan.text( screenReaderSpan.text() === kingston_l10n.expand ? kingston_l10n.collapse : kingston_l10n.expand );
  		});
  	}
  
  	initMainNavigation( $( '.main-navigation' ) );
  
  	masthead       = $( '#masthead' );
  	menuToggle     = masthead.find( '.menu-toggle' );
  	siteNavContain = masthead.find( '.main-navigation' );
  	siteNavigation = masthead.find( '.main-navigation > div > ul' );
  
  	// Enable menuToggle.
  	(function() {
  
  		// Return early if menuToggle is missing.
  		if ( ! menuToggle.length ) {
  			return;
  		}
  
  		// Add an initial value for the attribute.
  		menuToggle.attr( 'aria-expanded', 'false' );
  
  		menuToggle.on( 'click.kingston', function() {
  			siteNavContain.toggleClass( 'toggled-on' );
  
  			$( this ).attr( 'aria-expanded', siteNavContain.hasClass( 'toggled-on' ) );
  		});
  	})();
  
  	// 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 ( 'none' === $( '.menu-toggle' ).css( 'display' ) ) {
  
  				$( document.body ).on( 'touchstart.kingston', function( e ) {
  					if ( ! $( e.target ).closest( '.main-navigation li' ).length ) {
  						$( '.main-navigation li' ).removeClass( 'focus' );
  					}
  				});
  
  				siteNavigation.find( '.menu-item-has-children > a, .page_item_has_children > a' )
  					.on( 'touchstart.kingston', 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, .page_item_has_children > a' ).unbind( 'touchstart.kingston' );
  			}
  		}
  
  		if ( 'ontouchstart' in window ) {
  			$( window ).on( 'resize.kingston', toggleFocusClassTouchScreen );
  			toggleFocusClassTouchScreen();
  		}
  
  		siteNavigation.find( 'a' ).on( 'focus.kingston blur.kingston', function() {
  			$( this ).parents( '.menu-item, .page_item' ).toggleClass( 'focus' );
  		});
  	})();
  })( jQuery );
  