Ticket #28595: 28595.6.patch

src/wp-includes/js/tinymce/plugins/wpview/plugin.js

@@ -465 +465 @@
                         return;
                 }
 
-                if ( keyCode === VK.LEFT || keyCode === VK.UP ) {
+                if ( keyCode === VK.LEFT ) {
                         setViewCursor( true, view );
                         deselect();
-                } else if ( keyCode === VK.RIGHT || keyCode === VK.DOWN ) {
+                } else if ( keyCode === VK.UP ) {
+                        if ( view.previousSibling ) {
+                                if ( getView( view.previousSibling ) ) {
+                                        setViewCursor( true, view.previousSibling );
+                                } else {
+                                        selection.select( view.previousSibling, true );
+                                        selection.collapse();
+                                }
+                        } else {
+                                handleEnter( view, true );
+                        }
+                        deselect();
+                } else if ( keyCode === VK.RIGHT ) {
                         setViewCursor( false, view );
                         deselect();
+                } else if ( keyCode === VK.DOWN ) {
+                        if ( view.nextSibling ) {
+                                if ( getView( view.nextSibling ) ) {
+                                        setViewCursor( false, view.nextSibling );
+                                } else {
+                                        selection.setCursorLocation( view.nextSibling, 0 );
+                                }
+                        } else {
+                                handleEnter( view );
+                        }
+                        deselect();
                 } else if ( keyCode === VK.ENTER ) {
                         handleEnter( view );
                 } else if ( keyCode === VK.DELETE || keyCode === VK.BACKSPACE ) {