Ticket #29115: 29115.patch

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

@@ -353 +353 @@
                 }
         });
 
+        // Excludes arrow keys, delete, backspace, enter, space bar.
+        function isSpecialKey( key ) {
+                return ( ( key <= 47 && key !== VK.SPACEBAR && key !== VK.ENTER && key !== VK.DELETE && key !== VK.BACKSPACE && ( key < 37 || key > 40 ) ) ||
+                        key === 144 || key === 145 || // Num Lock, Scroll Lock
+                        ( key >= 91 && key <= 93 ) || // Windows keys
+                        ( key >= 112 && key <= 123 ) ); // F keys
+        }
+
         // (De)select views when arrow keys are used to navigate the content of the editor.
         editor.on( 'keydown', function( event ) {
                 var key = event.keyCode,
@@ -410 +418 @@
                                 } else {
                                         setViewCursor( false, view );
                                 }
+
                                 event.preventDefault();
                         // Ignore keys that don't insert anything.
-                        } else if ( ( key > 47 || VK.SPACEBAR || key === VK.ENTER || key === VK.DELETE || key === VK.BACKSPACE ) && key !== 144 && key !== 145 ) {
+                        } else if ( ! isSpecialKey( key ) ) {
                                 removeView( selected );
 
                                 if ( key === VK.ENTER || key === VK.DELETE || key === VK.BACKSPACE ) {
@@ -472 +481 @@
                                 return;
                         }
 
+                        if ( isSpecialKey( key ) ) {
+                                // ignore
+                                return;
+                        }
+
                         if ( ( cursorAfter && key === VK.UP ) || ( cursorBefore && key === VK.BACKSPACE ) ) {
                                 if ( view.previousSibling ) {
                                         if ( getView( view.previousSibling ) ) {