Ticket #8246: 8246.patch

_source/core/dom/node.js

@@ -673 +673 @@
                  */
                 isReadOnly : function()
                 {
-                        var current = this;
-                        while( current )
-                        {
-                                if ( current.type == CKEDITOR.NODE_ELEMENT )
-                                {
-                                        if ( current.is( 'body' ) || !!current.data( 'cke-editable' ) )
-                                                break;
+                        var element = this.type == CKEDITOR.NODE_TEXT
+                                || this.type == CKEDITOR.NODE_COMMENT ?
+                                this.getParent() : this;
 
-                                        if ( current.getAttribute( 'contentEditable' ) == 'false' )
-                                                return current;
-                                        else if ( current.getAttribute( 'contentEditable' ) == 'true' )
-                                                break;
-                                }
-                                current = current.getParent();
-                        }
-
-                        return false;
-                }
-        }
+                        return element && !element.$.isContentEditable;
+                }
+        }
 );