/**

 * @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.