Ticket #25698: 25698.4.diff

src/wp-admin/js/nav-menu.js

@@ -386 +386 @@
                         api.refreshKeyboardAccessibility();
                         api.refreshAdvancedAccessibility();
 
+                        // Refresh the accessibility when the user comes close to the item in any way
+                        menu.on( 'mouseenter.refreshAccessibility focus.refreshAccessibility touchstart.refreshAccessibility' , '.menu-item' , function(){
+                                api.refreshAdvancedAccessibilityOfItem( $( this ).find( '.item-edit' ) );
+                        } );
+
+                        // We have to update on click aswell because we might hover first, change the item and then click.
+                        menu.on( 'click', '.item-edit', function( e ) {
+                                api.refreshAdvancedAccessibilityOfItem( $( this ) );
+                        } );
+
                         // Events
                         menu.on( 'click', '.menus-move-up', function ( e ) {
                                 api.moveMenuItem( $( this ).parents( 'li.menu-item' ).find( 'a.item-edit' ), 'up' );
@@ -409 +419 @@
                         });
                 },
 
-                refreshAdvancedAccessibility : function() {
+                /**
+                 * refreshAdvancedAccessibilityOfItem( [itemToRefresh] )
+                 *
+                 * Refreshes advanced accessibility buttons for one menu item.
+                 * Shows or hides buttons based on the location of the menu item.
+                 *
+                 * @param  {object} itemToRefresh The menu item that might need it's advanced accessibility buttons refreshed
+                 */
+                refreshAdvancedAccessibilityOfItem : function( itemToRefresh ) {
 
-                        // Hide all links by default
-                        $( '.menu-item-settings .field-move a' ).css( 'display', 'none' );
+                        // Only refresh accessibility when necessary
+                        if ( true !== $( itemToRefresh ).data( 'needs_accessibility_refresh' ) ) {
+                                return;
+                        }
 
-                        $( '.item-edit' ).each( function() {
-                                var thisLink, thisLinkText, primaryItems, itemPosition, title,
-                                        parentItem, parentItemId, parentItemName, subItems,
-                                        $this = $(this),
-                                        menuItem = $this.closest( 'li.menu-item' ).first(),
-                                        depth = menuItem.menuItemDepth(),
-                                        isPrimaryMenuItem = ( 0 === depth ),
-                                        itemName = $this.closest( '.menu-item-handle' ).find( '.menu-item-title' ).text(),
-                                        position = parseInt( menuItem.index(), 10 ),
-                                        prevItemDepth = ( isPrimaryMenuItem ) ? depth : parseInt( depth - 1, 10 ),
-                                        prevItemNameLeft = menuItem.prevAll('.menu-item-depth-' + prevItemDepth).first().find( '.menu-item-title' ).text(),
-                                        prevItemNameRight = menuItem.prevAll('.menu-item-depth-' + depth).first().find( '.menu-item-title' ).text(),
-                                        totalMenuItems = $('#menu-to-edit li').length,
-                                        hasSameDepthSibling = menuItem.nextAll( '.menu-item-depth-' + depth ).length;
+                        var thisLink, thisLinkText, primaryItems, itemPosition, title,
+                                parentItem, parentItemId, parentItemName, subItems,
+                                $this = $( itemToRefresh ),
+                                menuItem = $this.closest( 'li.menu-item' ).first(),
+                                depth = menuItem.menuItemDepth(),
+                                isPrimaryMenuItem = ( 0 === depth ),
+                                itemName = $this.closest( '.menu-item-handle' ).find( '.menu-item-title' ).text(),
+                                position = parseInt( menuItem.index(), 10 ),
+                                prevItemDepth = ( isPrimaryMenuItem ) ? depth : parseInt( depth - 1, 10 ),
+                                prevItemNameLeft = menuItem.prevAll('.menu-item-depth-' + prevItemDepth).first().find( '.menu-item-title' ).text(),
+                                prevItemNameRight = menuItem.prevAll('.menu-item-depth-' + depth).first().find( '.menu-item-title' ).text(),
+                                totalMenuItems = $('#menu-to-edit li').length,
+                                hasSameDepthSibling = menuItem.nextAll( '.menu-item-depth-' + depth ).length;
 
                                 menuItem.find( '.field-move' ).toggle( totalMenuItems > 1 ); 
 
-                                // Where can they move this menu item?
-                                if ( 0 !== position ) {
-                                        thisLink = menuItem.find( '.menus-move-up' );
-                                        thisLink.prop( 'title', menus.moveUp ).css( 'display', 'inline' );
-                                }
+                        // Where can they move this menu item?
+                        if ( 0 !== position ) {
+                                thisLink = menuItem.find( '.menus-move-up' );
+                                thisLink.prop( 'title', menus.moveUp ).css( 'display', 'inline' );
+                        }
 
-                                if ( 0 !== position && isPrimaryMenuItem ) {
-                                        thisLink = menuItem.find( '.menus-move-top' );
-                                        thisLink.prop( 'title', menus.moveToTop ).css( 'display', 'inline' );
-                                }
+                        if ( 0 !== position && isPrimaryMenuItem ) {
+                                thisLink = menuItem.find( '.menus-move-top' );
+                                thisLink.prop( 'title', menus.moveToTop ).css( 'display', 'inline' );
+                        }
 
-                                if ( position + 1 !== totalMenuItems && 0 !== position ) {
-                                        thisLink = menuItem.find( '.menus-move-down' );
-                                        thisLink.prop( 'title', menus.moveDown ).css( 'display', 'inline' );
-                                }
+                        if ( position + 1 !== totalMenuItems && 0 !== position ) {
+                                thisLink = menuItem.find( '.menus-move-down' );
+                                thisLink.prop( 'title', menus.moveDown ).css( 'display', 'inline' );
+                        }
 
-                                if ( 0 === position && 0 !== hasSameDepthSibling ) {
-                                        thisLink = menuItem.find( '.menus-move-down' );
-                                        thisLink.prop( 'title', menus.moveDown ).css( 'display', 'inline' );
-                                }
+                        if ( 0 === position && 0 !== hasSameDepthSibling ) {
+                                thisLink = menuItem.find( '.menus-move-down' );
+                                thisLink.prop( 'title', menus.moveDown ).css( 'display', 'inline' );
+                        }
 
-                                if ( ! isPrimaryMenuItem ) {
-                                        thisLink = menuItem.find( '.menus-move-left' ),
-                                        thisLinkText = menus.outFrom.replace( '%s', prevItemNameLeft );
-                                        thisLink.prop( 'title', menus.moveOutFrom.replace( '%s', prevItemNameLeft ) ).html( thisLinkText ).css( 'display', 'inline' );
-                                }
+                        if ( ! isPrimaryMenuItem ) {
+                                thisLink = menuItem.find( '.menus-move-left' ),
+                                thisLinkText = menus.outFrom.replace( '%s', prevItemNameLeft );
+                                thisLink.prop( 'title', menus.moveOutFrom.replace( '%s', prevItemNameLeft ) ).html( thisLinkText ).css( 'display', 'inline' );
+                        }
 
-                                if ( 0 !== position ) {
-                                        if ( menuItem.find( '.menu-item-data-parent-id' ).val() !== menuItem.prev().find( '.menu-item-data-db-id' ).val() ) {
-                                                thisLink = menuItem.find( '.menus-move-right' ),
-                                                thisLinkText = menus.under.replace( '%s', prevItemNameRight );
-                                                thisLink.prop( 'title', menus.moveUnder.replace( '%s', prevItemNameRight ) ).html( thisLinkText ).css( 'display', 'inline' );
-                                        }
+                        if ( 0 !== position ) {
+                                if ( menuItem.find( '.menu-item-data-parent-id' ).val() !== menuItem.prev().find( '.menu-item-data-db-id' ).val() ) {
+                                        thisLink = menuItem.find( '.menus-move-right' ),
+                                        thisLinkText = menus.under.replace( '%s', prevItemNameRight );
+                                        thisLink.prop( 'title', menus.moveUnder.replace( '%s', prevItemNameRight ) ).html( thisLinkText ).css( 'display', 'inline' );
                                 }
+                        }
 
-                                if ( isPrimaryMenuItem ) {
-                                        primaryItems = $( '.menu-item-depth-0' ),
-                                        itemPosition = primaryItems.index( menuItem ) + 1,
-                                        totalMenuItems = primaryItems.length,
+                        if ( isPrimaryMenuItem ) {
+                                primaryItems = $( '.menu-item-depth-0' ),
+                                itemPosition = primaryItems.index( menuItem ) + 1,
+                                totalMenuItems = primaryItems.length,
 
-                                        // String together help text for primary menu items
-                                        title = menus.menuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$d', totalMenuItems );
-                                } else {
-                                        parentItem = menuItem.prevAll( '.menu-item-depth-' + parseInt( depth - 1, 10 ) ).first(),
-                                        parentItemId = parentItem.find( '.menu-item-data-db-id' ).val(),
-                                        parentItemName = parentItem.find( '.menu-item-title' ).text(),
-                                        subItems = $( '.menu-item .menu-item-data-parent-id[value="' + parentItemId + '"]' ),
-                                        itemPosition = $( subItems.parents('.menu-item').get().reverse() ).index( menuItem ) + 1;
+                                // String together help text for primary menu items
+                                title = menus.menuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$d', totalMenuItems );
+                        } else {
+                                parentItem = menuItem.prevAll( '.menu-item-depth-' + parseInt( depth - 1, 10 ) ).first(),
+                                parentItemId = parentItem.find( '.menu-item-data-db-id' ).val(),
+                                parentItemName = parentItem.find( '.menu-item-title' ).text(),
+                                subItems = $( '.menu-item .menu-item-data-parent-id[value="' + parentItemId + '"]' ),
+                                itemPosition = $( subItems.parents('.menu-item').get().reverse() ).index( menuItem ) + 1;
 
-                                        // String together help text for sub menu items
-                                        title = menus.subMenuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$s', parentItemName );
-                                }
+                                // String together help text for sub menu items
+                                title = menus.subMenuFocus.replace( '%1$s', itemName ).replace( '%2$d', itemPosition ).replace( '%3$s', parentItemName );
+                        }
 
-                                $this.prop('title', title).html( title );
-                        });
+                        $this.prop('title', title).html( title );
+
+                        // Mark this item's accessibility as refreshed
+                        $this.data( 'needs_accessibility_refresh', false );
                 },
 
+                /**
+                 * refreshAdvancedAccessibility
+                 *
+                 * Hides all advanced accessibility buttons and marks them for refreshing.
+                 */
+                refreshAdvancedAccessibility : function() {
+
+                        // Hide all links by default
+                        $( '.menu-item-settings .field-move a' ).hide();
+
+                        // Mark all menu items as unprocessed
+                        $( '.item-edit' ).data( 'needs_accessibility_refresh', true );
+
+                        // All open items have to be refreshed or they will show no links
+                        $( '.menu-item-edit-active .item-edit' ).each( function() {
+                                api.refreshAdvancedAccessibilityOfItem( this );
+                        } );
+                },
+
                 refreshKeyboardAccessibility : function() {
                         $( '.item-edit' ).off( 'focus' ).on( 'focus', function(){
                                 $(this).off( 'keydown' ).on( 'keydown', function(e){