/**

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* @output wp-includes/js/admin-bar.js

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*/

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/**

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* Admin bar with Vanilla JS, no external dependencies.

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*

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* @since 5.3.1

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*

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* @param {Object} document The document object.

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* @param {Object} window The window object.

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* @param {Object} navigator The navigator object.

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*

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* @return {void}

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*/

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( function( document, window, navigator ) {

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document.addEventListener( 'DOMContentLoaded', function() {

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var adminBar = document.getElementById( 'wpadminbar' ),

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topMenuItems,

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allMenuItems,

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adminBarLogout,

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adminBarSearchForm,

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shortlink,

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skipLink,

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mobileEvent,

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adminBarSearchInput,

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i;

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if ( ! adminBar || ! ( 'querySelectorAll' in adminBar ) ) {

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return;

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}

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topMenuItems = adminBar.querySelectorAll( 'li.menupop' );

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allMenuItems = adminBar.querySelectorAll( '.ab-item' );

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adminBarLogout = document.getElementById( 'wp-admin-bar-logout' );

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adminBarSearchForm = document.getElementById( 'adminbarsearch' );

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shortlink = document.getElementById( 'wp-admin-bar-get-shortlink' );

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skipLink = adminBar.querySelector( '.screen-reader-shortcut' );

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mobileEvent = /Mobile\/.+Safari/.test( navigator.userAgent ) ? 'touchstart' : 'click';

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// Remove nojs class after the DOM is loaded.

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removeClass( adminBar, 'nojs' );

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if ( 'ontouchstart' in window ) {

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// Remove hover class when the user touches outside the menu items.

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document.body.addEventListener( mobileEvent, function( e ) {

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if ( ! getClosest( e.target, 'li.menupop' ) ) {

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removeAllHoverClass( topMenuItems );

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}

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} );

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// Add listener for menu items to toggle hover class by touches.

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// Remove the callback later for better performance.

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adminBar.addEventListener( 'touchstart', function bindMobileEvents() {

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for ( var i = 0; i < topMenuItems.length; i++ ) {

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topMenuItems[i].addEventListener( 'click', mobileHover.bind( null, topMenuItems ) );

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}

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adminBar.removeEventListener( 'touchstart', bindMobileEvents );

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} );

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}

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// Scroll page to top when clicking on the admin bar.

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adminBar.addEventListener( 'click', scrollToTop );

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for ( i = 0; i < topMenuItems.length; i++ ) {

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// Adds or removes the hover class based on the hover intent.

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window.hoverintent(

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topMenuItems[i],

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addClass.bind( null, topMenuItems[i], 'hover' ),

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removeClass.bind( null, topMenuItems[i], 'hover' )

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).options( {

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timeout: 180

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} );

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// Toggle hover class if the enter key is pressed.

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topMenuItems[i].addEventListener( 'keydown', toggleHoverIfEnter );

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}

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// Remove hover class if the escape key is pressed.

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for ( i = 0; i < allMenuItems.length; i++ ) {

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allMenuItems[i].addEventListener( 'keydown', removeHoverIfEscape );

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}

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if ( adminBarSearchForm ) {

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adminBarSearchInput = document.getElementById( 'adminbar-search' );

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// Adds the adminbar-focused class on focus.

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adminBarSearchInput.addEventListener( 'focus', function() {

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addClass( adminBarSearchForm, 'adminbar-focused' );

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} );

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// Removes the adminbar-focused class on blur.

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adminBarSearchInput.addEventListener( 'blur', function() {

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removeClass( adminBarSearchForm, 'adminbar-focused' );

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} );

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}

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if ( skipLink ) {

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// Focus the target of skip link after pressing Enter.

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skipLink.addEventListener( 'keydown', focusTargetAfterEnter );

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}

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if ( shortlink ) {

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shortlink.addEventListener( 'click', clickShortlink );

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}

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// Prevents the toolbar from covering up content when a hash is present in the URL.

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if ( window.location.hash ) {

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window.scrollBy( 0, -32 );

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}

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// Clear sessionStorage on logging out.

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if ( adminBarLogout ) {

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adminBarLogout.addEventListener( 'click', emptySessionStorage );

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}

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} );

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/**

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* Remove hover class for top level menu item when escape is pressed.

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*

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* @since 5.3.1

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*

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* @param {Event} event The keydown event.

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*/

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function removeHoverIfEscape( event ) {

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var wrapper;

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if ( event.which !== 27 ) {

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return;

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}

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wrapper = getClosest( event.target, '.menupop' );

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if ( ! wrapper ) {

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return;

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}

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wrapper.querySelector( '.menupop > .ab-item' ).focus();

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removeClass( wrapper, 'hover' );

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}

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/**

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* Toggle hover class for top level menu item when enter is pressed.

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*

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* @since 5.3.1

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*

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* @param {Event} event The keydown event.

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*/

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function toggleHoverIfEnter( event ) {

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var wrapper;

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if ( event.which !== 13 ) {

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return;

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}

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if ( !! getClosest( event.target, '.ab-sub-wrapper' ) ) {

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return;

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}

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wrapper = getClosest( event.target, '.menupop' );

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if ( ! wrapper ) {

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return;

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}

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event.preventDefault();

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if ( hasClass( wrapper, 'hover' ) ) {

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removeClass( wrapper, 'hover' );

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} else {

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addClass( wrapper, 'hover' );

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}

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}

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/**

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* Focus the target of skip link after pressing Enter.

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*

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* @since 5.3.1

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*

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* @param {Event} event The keydown event.

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*/

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function focusTargetAfterEnter( event ) {

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var id, userAgent;

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if ( event.which !== 13 ) {

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return;

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}

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id = event.target.getAttribute( 'href' );

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userAgent = navigator.userAgent.toLowerCase();

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if ( userAgent.indexOf( 'applewebkit' ) > -1 && id && id.charAt( 0 ) === '#' ) {

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setTimeout( function() {

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var target = document.getElementById( id.replace( '#', '' ) );

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if ( target ) {

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target.setAttribute( 'tabIndex', '0' );

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target.focus();

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}

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}, 100 );

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}

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}

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/**

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* Toogle hover class for mobile devices.

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*

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* @since 5.3.1

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*

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* @param {NodeList} topMenuItems All menu items.

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* @param {Event} event The click event.

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*/

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function mobileHover( topMenuItems, event ) {

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var wrapper;

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if ( !! getClosest( event.target, '.ab-sub-wrapper' ) ) {

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return;

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}

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event.preventDefault();

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wrapper = getClosest( event.target, '.menupop' );

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if ( ! wrapper ) {

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return;

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}

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if ( hasClass( wrapper, 'hover' ) ) {

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removeClass( wrapper, 'hover' );

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} else {

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removeAllHoverClass( topMenuItems );

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addClass( wrapper, 'hover' );

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}

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}

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/**

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* Handles the click on the Shortlink link in the adminbar.

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*

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* @since 3.1.0

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* @since 5.3.1 Use querySelector to clean up the function.

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*

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* @param {Event} event The click event.

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* @return {boolean} Returns false to prevent default click behavior.

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*/

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function clickShortlink( event ) {

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var wrapper = event.target.parentNode,

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input;

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if ( wrapper ) {

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input = wrapper.querySelector( '.shortlink-input' );

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}

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if ( ! input ) {

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return;

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}

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// (Old) IE doesn't support preventDefault, and does support returnValue.

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if ( event.preventDefault ) {

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event.preventDefault();

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}

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event.returnValue = false;

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addClass( wrapper, 'selected' );

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input.focus();

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input.select();

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input.onblur = function() {

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removeClass( wrapper, 'selected' );

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};

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return false;

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}

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/**

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* Clear sessionStorage on logging out.

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*

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* @since 5.3.1

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*/

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function emptySessionStorage() {

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if ( 'sessionStorage' in window ) {

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try {

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for ( var key in sessionStorage ) {

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if ( key.indexOf( 'wp-autosave-' ) > -1 ) {

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sessionStorage.removeItem( key );

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}

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}

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} catch ( er ) {}

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}

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}

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/**

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* Check if element has class.

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*

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* @since 5.3.1

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*

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* @param {HTMLElement} element The HTML element.

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* @param {string} className The class name.

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* @return {boolean} Whether the element has the className.

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*/

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function hasClass( element, className ) {

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var classNames;

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if ( ! element ) {

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return false;

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}

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if ( element.classList && element.classList.contains ) {

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return element.classList.contains( className );

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} else if ( element.className ) {

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classNames = element.className.split( ' ' );

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return classNames.indexOf( className ) > -1;

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}

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return false;

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}

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/**

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* Add class to an element.

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*

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* @since 5.3.1

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*

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* @param {HTMLElement} element The HTML element.

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* @param {string} className The class name.

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*/

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function addClass( element, className ) {

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if ( ! element ) {

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return;

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}

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if ( element.classList && element.classList.add ) {

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element.classList.add( className );

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} else if ( ! hasClass( element, className ) ) {

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if ( element.className ) {

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element.className += ' ';

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}

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element.className += className;

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}

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}

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/**

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* Remove class from an element.

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*

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* @since 5.3.1

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*

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* @param {HTMLElement} element The HTML element.

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* @param {string} className The class name.

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*/

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function removeClass( element, className ) {

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var testName,

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classes;

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if ( ! element || ! hasClass( element, className ) ) {

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return;

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}

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if ( element.classList && element.classList.remove ) {

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element.classList.remove( className );

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} else {

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testName = ' ' + className + ' ';

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classes = ' ' + element.className + ' ';

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while ( classes.indexOf( testName ) > -1 ) {

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classes = classes.replace( testName, '' );

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}

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element.className = classes.replace( /^[\s]+|[\s]+$/g, '' );

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}

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}

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/**

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* Remove hover class for all menu items.

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*

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* @since 5.3.1

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*

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* @param {NodeList} topMenuItems All menu items.

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*/

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function removeAllHoverClass( topMenuItems ) {

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if ( topMenuItems && topMenuItems.length ) {

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for ( var i = 0; i < topMenuItems.length; i++ ) {

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removeClass( topMenuItems[i], 'hover' );

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}

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}

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}

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/**

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* Scrolls to the top of the page.

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*

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* @since 3.4.0

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*

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* @param {Event} event The Click event.

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*

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* @return {void}

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*/

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function scrollToTop( event ) {

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// Only scroll when clicking on the wpadminbar, not on menus or submenus.

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if (

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event.target &&

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event.target.id !== 'wpadminbar' &&

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event.target.id !== 'wp-admin-bar-top-secondary'

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) {

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return;

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}

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try {

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window.scrollTo( {

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top: -32,

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left: 0,

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behavior: 'smooth'

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} );

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} catch ( er ) {

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window.scrollTo( 0, -32 );

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}

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}

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/**

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* Get closest Element.

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*

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* @since 5.3.1

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*

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* @param {HTMLElement} el Element to get parent.

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* @param {string} selector CSS selector to match.

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*/

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function getClosest( el, selector ) {

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if ( ! window.Element.prototype.matches ) {

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// Polyfill from https://developer.mozilla.org/en-US/docs/Web/API/Element/matches.

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window.Element.prototype.matches =

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window.Element.prototype.matchesSelector ||

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window.Element.prototype.mozMatchesSelector ||

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window.Element.prototype.msMatchesSelector ||

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window.Element.prototype.oMatchesSelector ||

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window.Element.prototype.webkitMatchesSelector ||

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function( s ) {

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var matches = ( this.document || this.ownerDocument ).querySelectorAll( s ),

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i = matches.length;

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while ( --i >= 0 && matches.item( i ) !== this ) { }

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return i > -1;

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};

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}

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// Get the closest matching elent.

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for ( ; el && el !== document; el = el.parentNode ) {

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if ( el.matches( selector ) ) {

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return el;

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}

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}

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return null;

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}

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} )( document, window, navigator );

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