Ticket #26639: 26639.4.diff

src/wp-admin/js/common.js

@@ -553 +553 @@
                                 self.deactivate();
                         });
 
+                        $( '#wp-admin-bar-menu-toggle a' ).attr( 'aria-expanded', 'false' );
+
                         // Toggle sidebar when toggle is clicked
                         $( '#wp-admin-bar-menu-toggle' ).on( 'click.wp-responsive', function( event ) {
                                 event.preventDefault();
                                 $wpwrap.toggleClass( 'wp-responsive-open' );
+                                if ( $wpwrap.hasClass( 'wp-responsive-open' ) ) {
+                                        $(this).find('a').attr( 'aria-expanded', 'true' );
+                                        $( '#adminmenu a:first' ).focus();
+                                } else {
+                                        $(this).find('a').attr( 'aria-expanded', 'false' );
+                                }
                         } );
 
                         // Add menu events

src/wp-includes/admin-bar.php

@@ -166 +166 @@
         if ( is_admin() ) {
                 $wp_admin_bar->add_menu( array(
                         'id'    => 'menu-toggle',
-                        'title' => '<span class="ab-icon"></span>',
+                        'title' => '<span class="ab-icon"></span><span class="screen-reader-text">' . __( 'Menu' ) . '</span>',
                         'href'  => '#',
-                        'meta'  => array(
-                                'title' => __( 'Menu' ),
-                        ),
                 ) );
         }
 }