diff -r 000000000000 -r 79c6a41cd166 menucontentsrv/enginc/menuengvisitor.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/menucontentsrv/enginc/menuengvisitor.h	Thu Dec 17 08:54:17 2009 +0200
@@ -0,0 +1,71 @@
+/*
+* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+*
+*/
+
+#ifndef __MENUENGVISITOR_H__
+#define __MENUENGVISITOR_H__
+
+// INCLUDES
+
+#include <e32base.h>
+
+// FORWARD DECLARATION
+
+class CMenuEngObject;
+
+// CLASS DECLARATION
+
+/**
+* Menu Engine hierarchical visitor interface.
+* Object tree depth-first traversal.
+*/
+NONSHARABLE_CLASS( MMenuEngVisitor )
+    {
+
+public:     // new methods
+
+    /**
+    * Enter folder.
+    * @param aFolder Entering this folder.
+    * @return ETrue to visit children of this folder. VisitLeaveL() will
+    *         be called after children of this folder are visited.
+    *         EFalse to skip children of this folder. VisitLeaveL() will
+    *         be called next.
+    */
+    virtual TBool VisitEnterL( CMenuEngObject& /*aFolder*/ )    
+        { return ETrue; };
+
+    /**
+    * Leave folder.
+    * @param aFolder Leaving this folder.
+    * @return ETrue to visit next sibling of this folder.
+    *         EFalse to stop visiting items at this level.
+    */
+    virtual TBool VisitLeaveL( CMenuEngObject& /*aFolder*/ )    
+        { return ETrue; };
+
+    /**
+    * Visit leaf node.
+    * @param aLeaf Leaf node.
+    * @return ETrue to visit next sibling of this leaf.
+    *         EFalse to stop visiting items at this level.
+    */
+    virtual TBool VisitL( CMenuEngObject& /*aLeaf*/ )
+        { return ETrue; };
+
+    };
+
+#endif // __MENUENGVISITOR_H__