Fixing bug 81669. Implement nsXULComment::CreateComment(), patch by Fabian Guisset (hidday@geocities.com), r=peterv@netscape.com, sr=jst@netscape.com

content/xul/document/src/nsXULDocument.cpp

@@ -61,6 +61,7 @@
 #include "nsIScrollableView.h"
 #include "nsIContentViewer.h"
 #include "nsICSSStyleSheet.h"
+#include "nsIDOMComment.h"
 #include "nsIDOMEvent.h"
 #include "nsIDOMEventListener.h"
 #include "nsIDOMEventReceiver.h"
@@ -2313,8 +2314,16 @@ NS_IMETHODIMP
 nsXULDocument::CreateComment(const nsAReadableString& aData,
                              nsIDOMComment** aReturn)
 {
-    NS_NOTREACHED("nsXULDocument::CreateComment");
-    return NS_ERROR_NOT_IMPLEMENTED;
+    nsCOMPtr<nsIContent> comment;
+    nsresult rv = NS_NewCommentNode(getter_AddRefs(comment));
+
+    if (NS_SUCCEEDED(rv)) {
+        rv = comment->QueryInterface(NS_GET_IID(nsIDOMComment),
+                                     (void**)aReturn);
+        (*aReturn)->AppendData(aData);
+    }
+
+    return rv;
 }