1/** 2 * File navigation.js. 3 * 4 * Handles toggling the navigation menu for small screens and enables TAB key 5 * navigation support for dropdown menus. 6 */ 7 8( function($) { 9 const siteNavigation = document.getElementById( 'site-navigation' ); 10 const siteContainer = document.querySelector( '.nav-container' ); 11 const button = document.querySelector( ".hamburger" ); 12 const menu = siteNavigation.getElementsByTagName( 'ul' )[ 0 ]; 13 14 // Hide menu toggle button if menu is empty and return early. 15 // if ( 'undefined' === typeof menu ) { 16 // button.style.display = 'none'; 17 // return; 18 // } 19 20 // Toggle the .toggled class and the aria-expanded value each time the button is clicked. 21 button.addEventListener( 'click', function() { 22 siteContainer.classList.toggle( 'toggled' ); 23 24 if ( button.getAttribute( 'aria-expanded' ) === 'true' ) { 25 button.setAttribute( 'aria-expanded', 'false' ); 26 } else { 27 button.setAttribute( 'aria-expanded', 'true' ); 28 } 29 } ); 30 31 // Remove the .toggled class and set aria-expanded to false when the user clicks outside the navigation. 32 // document.addEventListener( 'click', function( event ) { 33 // const isClickInside = siteNavigation.contains( event.target ); 34 35 // if ( ! isClickInside ) { 36 // siteNavigation.classList.remove( 'toggled' ); 37 // button.setAttribute( 'aria-expanded', 'false' ); 38 // } 39 // } ); 40 41 // Open subnav menus 42 // siteContainer.addEventListener('click', function( event ){ 43 // event.preventDefault(); 44 // console.log(this); 45 46 // }); 47 48 $('.menu-item-has-children').on('click', function(e){ 49 $(this).toggleClass('open-subnav'); 50 }); 51 52 // Get all the link elements within the menu. 53 const links = menu.getElementsByTagName( 'a' ); 54 55 // Get all the link elements with children within the menu. 56 const linksWithChildren = menu.querySelectorAll( '.menu-item-has-children > a, .page_item_has_children > a' ); 57 58 // Toggle focus each time a menu link is focused or blurred. 59 for ( const link of links ) { 60 link.addEventListener( 'focus', toggleFocus, true ); 61 link.addEventListener( 'blur', toggleFocus, true ); 62 } 63 64 // Toggle focus each time a menu link with children receive a touch event. 65 for ( const link of linksWithChildren ) { 66 link.addEventListener( 'touchstart', toggleFocus, false ); 67 } 68 69 /** 70 * Sets or removes .focus class on an element. 71 */ 72 function toggleFocus() { 73 if ( event.type === 'focus' || event.type === 'blur' ) { 74 let self = this; 75 // Move up through the ancestors of the current link until we hit .nav-menu. 76 while ( ! self.classList.contains( 'nav-menu' ) ) { 77 // debugger; 78 // On li elements toggle the class .focus. 79 if ( 'li' === self.tagName.toLowerCase() ) { 80 self.classList.toggle( 'focus' ); 81 } 82 self = self.parentNode; 83 // debugger; 84 } 85 // debugger; 86 } 87 88 if ( event.type === 'touchstart' ) { 89 const menuItem = this.parentNode; 90 // event.preventDefault(); 91 for ( const link of menuItem.parentNode.children ) { 92 if ( menuItem !== link ) { 93 link.classList.remove( 'focus' ); 94 } 95 } 96 menuItem.classList.toggle( 'focus' ); 97 } 98 } 99}(jQuery) );
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