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/** * @output wp-includes/js/admin-bar.js */ /** * Admin bar with Vanilla JS, no external dependencies. * * @since 5.3.1 * * @param {Object} document The document object. * @param {Object} window The window object. * @param {Object} navigator The navigator object. * * @return {void} */ ( function( document, window, navigator ) { document.addEventListener( 'DOMContentLoaded', function() { var adminBar = document.getElementById( 'wpadminbar' ), topMenuItems, allMenuItems, adminBarLogout, adminBarSearchForm, shortlink, skipLink, mobileEvent, adminBarSearchInput, i; if ( ! adminBar || ! ( 'querySelectorAll' in adminBar ) ) { return; } topMenuItems = adminBar.querySelectorAll( 'li.menupop' ); allMenuItems = adminBar.querySelectorAll( '.ab-item' ); adminBarLogout = document.querySelector( '#wp-admin-bar-logout a' ); adminBarSearchForm = document.getElementById( 'adminbarsearch' ); shortlink = document.getElementById( 'wp-admin-bar-get-shortlink' ); skipLink = adminBar.querySelector( '.screen-reader-shortcut' ); mobileEvent = /Mobile\/.+Safari/.test( navigator.userAgent ) ? 'touchstart' : 'click'; // Remove nojs class after the DOM is loaded. removeClass( adminBar, 'nojs' ); if ( 'ontouchstart' in window ) { // Remove hover class when the user touches outside the menu items. document.body.addEventListener( mobileEvent, function( e ) { if ( ! getClosest( e.target, 'li.menupop' ) ) { removeAllHoverClass( topMenuItems ); } } ); // Add listener for menu items to toggle hover class by touches. // Remove the callback later for better performance. adminBar.addEventListener( 'touchstart', function bindMobileEvents() { for ( var i = 0; i < topMenuItems.length; i++ ) { topMenuItems[i].addEventListener( 'click', mobileHover.bind( null, topMenuItems ) ); } adminBar.removeEventListener( 'touchstart', bindMobileEvents ); } ); } // Scroll page to top when clicking on the admin bar. adminBar.addEventListener( 'click', scrollToTop ); for ( i = 0; i < topMenuItems.length; i++ ) { // Adds or removes the hover class based on the hover intent. window.hoverintent( topMenuItems[i], addClass.bind( null, topMenuItems[i], 'hover' ), removeClass.bind( null, topMenuItems[i], 'hover' ) ).options( { timeout: 180 } ); // Toggle hover class if the enter key is pressed. topMenuItems[i].addEventListener( 'keydown', toggleHoverIfEnter ); } // Remove hover class if the escape key is pressed. for ( i = 0; i < allMenuItems.length; i++ ) { allMenuItems[i].addEventListener( 'keydown', removeHoverIfEscape ); } if ( adminBarSearchForm ) { adminBarSearchInput = document.getElementById( 'adminbar-search' ); // Adds the adminbar-focused class on focus. adminBarSearchInput.addEventListener( 'focus', function() { addClass( adminBarSearchForm, 'adminbar-focused' ); } ); // Removes the adminbar-focused class on blur. adminBarSearchInput.addEventListener( 'blur', function() { removeClass( adminBarSearchForm, 'adminbar-focused' ); } ); } if ( shortlink ) { shortlink.addEventListener( 'click', clickShortlink ); } // Prevents the toolbar from covering up content when a hash is present in the URL. if ( window.location.hash ) { window.scrollBy( 0, -32 ); } // Clear sessionStorage on logging out. if ( adminBarLogout ) { adminBarLogout.addEventListener( 'click', emptySessionStorage ); } } ); /** * Remove hover class for top level menu item when escape is pressed. * * @since 5.3.1 * * @param {Event} event The keydown event. */ function removeHoverIfEscape( event ) { var wrapper; if ( event.which !== 27 ) { return; } wrapper = getClosest( event.target, '.menupop' ); if ( ! wrapper ) { return; } wrapper.querySelector( '.menupop > .ab-item' ).focus(); removeClass( wrapper, 'hover' ); } /** * Toggle hover class for top level menu item when enter is pressed. * * @since 5.3.1 * * @param {Event} event The keydown event. */ function toggleHoverIfEnter( event ) { var wrapper; // Follow link if pressing Ctrl and/or Shift with Enter (opening in a new tab or window). if ( event.which !== 13 || event.ctrlKey || event.shiftKey ) { return; } if ( !! getClosest( event.target, '.ab-sub-wrapper' ) ) { return; } wrapper = getClosest( event.target, '.menupop' ); if ( ! wrapper ) { return; } event.preventDefault(); if ( hasClass( wrapper, 'hover' ) ) { removeClass( wrapper, 'hover' ); } else { addClass( wrapper, 'hover' ); } } /** * Toggle hover class for mobile devices. * * @since 5.3.1 * * @param {NodeList} topMenuItems All menu items. * @param {Event} event The click event. */ function mobileHover( topMenuItems, event ) { var wrapper; if ( !! getClosest( event.target, '.ab-sub-wrapper' ) ) { return; } event.preventDefault(); wrapper = getClosest( event.target, '.menupop' ); if ( ! wrapper ) { return; } if ( hasClass( wrapper, 'hover' ) ) { removeClass( wrapper, 'hover' ); } else { removeAllHoverClass( topMenuItems ); addClass( wrapper, 'hover' ); } } /** * Handles the click on the Shortlink link in the adminbar. * * @since 3.1.0 * @since 5.3.1 Use querySelector to clean up the function. * * @param {Event} event The click event. * @return {boolean} Returns false to prevent default click behavior. */ function clickShortlink( event ) { var wrapper = event.target.parentNode, input; if ( wrapper ) { input = wrapper.querySelector( '.shortlink-input' ); } if ( ! input ) { return; } // (Old) IE doesn't support preventDefault, and does support returnValue. if ( event.preventDefault ) { event.preventDefault(); } event.returnValue = false; addClass( wrapper, 'selected' ); input.focus(); input.select(); input.onblur = function() { removeClass( wrapper, 'selected' ); }; return false; } /** * Clear sessionStorage on logging out. * * @since 5.3.1 */ function emptySessionStorage() { if ( 'sessionStorage' in window ) { try { for ( var key in sessionStorage ) { if ( key.indexOf( 'wp-autosave-' ) > -1 ) { sessionStorage.removeItem( key ); } } } catch ( er ) {} } } /** * Check if element has class. * * @since 5.3.1 * * @param {HTMLElement} element The HTML element. * @param {string} className The class name. * @return {boolean} Whether the element has the className. */ function hasClass( element, className ) { var classNames; if ( ! element ) { return false; } if ( element.classList && element.classList.contains ) { return element.classList.contains( className ); } else if ( element.className ) { classNames = element.className.split( ' ' ); return classNames.indexOf( className ) > -1; } return false; } /** * Add class to an element. * * @since 5.3.1 * * @param {HTMLElement} element The HTML element. * @param {string} className The class name. */ function addClass( element, className ) { if ( ! element ) { return; } if ( element.classList && element.classList.add ) { element.classList.add( className ); } else if ( ! hasClass( element, className ) ) { if ( element.className ) { element.className += ' '; } element.className += className; } var menuItemToggle = element.querySelector( 'a' ); if ( className === 'hover' && menuItemToggle && menuItemToggle.hasAttribute( 'aria-expanded' ) ) { menuItemToggle.setAttribute( 'aria-expanded', 'true' ); } } /** * Remove class from an element. * * @since 5.3.1 * * @param {HTMLElement} element The HTML element. * @param {string} className The class name. */ function removeClass( element, className ) { var testName, classes; if ( ! element || ! hasClass( element, className ) ) { return; } if ( element.classList && element.classList.remove ) { element.classList.remove( className ); } else { testName = ' ' + className + ' '; classes = ' ' + element.className + ' '; while ( classes.indexOf( testName ) > -1 ) { classes = classes.replace( testName, '' ); } element.className = classes.replace( /^[\s]+|[\s]+$/g, '' ); } var menuItemToggle = element.querySelector( 'a' ); if ( className === 'hover' && menuItemToggle && menuItemToggle.hasAttribute( 'aria-expanded' ) ) { menuItemToggle.setAttribute( 'aria-expanded', 'false' ); } } /** * Remove hover class for all menu items. * * @since 5.3.1 * * @param {NodeList} topMenuItems All menu items. */ function removeAllHoverClass( topMenuItems ) { if ( topMenuItems && topMenuItems.length ) { for ( var i = 0; i < topMenuItems.length; i++ ) { removeClass( topMenuItems[i], 'hover' ); } } } /** * Scrolls to the top of the page. * * @since 3.4.0 * * @param {Event} event The Click event. * * @return {void} */ function scrollToTop( event ) { // Only scroll when clicking on the wpadminbar, not on menus or submenus. if ( event.target && event.target.id !== 'wpadminbar' && event.target.id !== 'wp-admin-bar-top-secondary' ) { return; } try { window.scrollTo( { top: -32, left: 0, behavior: 'smooth' } ); } catch ( er ) { window.scrollTo( 0, -32 ); } } /** * Get closest Element. * * @since 5.3.1 * * @param {HTMLElement} el Element to get parent. * @param {string} selector CSS selector to match. */ function getClosest( el, selector ) { if ( ! window.Element.prototype.matches ) { // Polyfill from https://developer.mozilla.org/en-US/docs/Web/API/Element/matches. window.Element.prototype.matches = window.Element.prototype.matchesSelector || window.Element.prototype.mozMatchesSelector || window.Element.prototype.msMatchesSelector || window.Element.prototype.oMatchesSelector || window.Element.prototype.webkitMatchesSelector || function( s ) { var matches = ( this.document || this.ownerDocument ).querySelectorAll( s ), i = matches.length; while ( --i >= 0 && matches.item( i ) !== this ) { } return i > -1; }; } // Get the closest matching elent. for ( ; el && el !== document; el = el.parentNode ) { if ( el.matches( selector ) ) { return el; } } return null; } } )( document, window, navigator );