diff -r 4ea6f81c838a -r 0e9bb658ef58 mmuifw_plat/alf_widgetmodel_api/inc/alf/ialfsortfunction.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmuifw_plat/alf_widgetmodel_api/inc/alf/ialfsortfunction.h	Wed Sep 01 12:23:18 2010 +0100
@@ -0,0 +1,53 @@
+/*
+* Copyright (c) 2004 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:  callback interface for sort.
+*
+*/
+
+
+#ifndef I_ALFSORTFUNCTION
+#define I_ALFSORTFUNCTION
+
+// CLASS DECLARATIONS
+namespace Alf
+    {
+    
+class IAlfMap;
+
+/**
+ * callback- interface for sort.
+ * 
+ * @since S60 ?S60_version  
+ * @status Draft
+ */
+class IAlfSortFunction
+    {
+public:
+    /**
+     * compares two leafs
+     *
+     * @param aFirst first parameter for comparison
+     * @param aSecond second parameter for comparison
+     * @return < 0, if aFirst is less than aSecond, > 0 if aFirst is more than aSecond,
+                0, if aFirst equals aSecond.
+     * @since S60 ?S60_version
+     */ 
+    virtual int compareLeafs( const IAlfMap* aFirst, const IAlfMap* aSecond ) const = 0;
+    
+    };
+    
+    }
+#endif
+
+// End of File