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navigation.js
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Edit File: navigation.js
/** * Handles toggling the navigation menu for small screens and * accessibility for submenu items. */ ( function() { var nav = document.getElementById( 'site-navigation' ), button, menu; if ( ! nav ) { return; } button = nav.getElementsByTagName( 'button' )[0]; menu = nav.getElementsByTagName( 'ul' )[0]; if ( ! button ) { return; } // Hide button if menu is missing or empty. if ( ! menu || ! menu.childNodes.length ) { button.style.display = 'none'; return; } button.onclick = function() { if ( -1 === menu.className.indexOf( 'nav-menu' ) ) { menu.className = 'nav-menu'; } if ( -1 !== button.className.indexOf( 'toggled-on' ) ) { button.className = button.className.replace( ' toggled-on', '' ); menu.className = menu.className.replace( ' toggled-on', '' ); } else { button.className += ' toggled-on'; menu.className += ' toggled-on'; } }; } )(); // Better focus for hidden submenu items for accessibility. ( function( $ ) { $( '.main-navigation' ).find( 'a' ).on( 'focus.twentytwelve blur.twentytwelve', function() { $( this ).parents( '.menu-item, .page_item' ).toggleClass( 'focus' ); } ); if ( 'ontouchstart' in window ) { $('body').on( 'touchstart.twentytwelve', '.menu-item-has-children > a, .page_item_has_children > a', function( e ) { var el = $( this ).parent( 'li' ); if ( ! el.hasClass( 'focus' ) ) { e.preventDefault(); el.toggleClass( 'focus' ); el.siblings( '.focus').removeClass( 'focus' ); } } ); } } )( jQuery );
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