diff -r 000000000000 -r 164170e6151a securitydialogs/lockapp/inc/lockappstateobserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/securitydialogs/lockapp/inc/lockappstateobserver.h	Tue Jan 26 15:20:08 2010 +0200
@@ -0,0 +1,50 @@
+/*
+* Copyright (c) 2007 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:  Interface for controls that want to be informed about lock status
+ *
+*/
+
+
+#ifndef __LOCKAPPSTATEOBSERVER_H__
+#define __LOCKAPPSTATEOBSERVER_H__
+
+// INCLUDES
+#include <e32std.h>
+#include <e32base.h>
+#include "lockapp.hrh"
+
+/**
+ *  CLockAppStateObserver class offers a lockstate observer interface. 
+ *  All observer classes derived from MLockAppStateObserver should be added to 
+ *  the lockapp observer list in order to get notifications about lock state changes.
+ *
+ *  @lib    lockapp
+ *  @since  5.0
+ *  @author Joona Petrell
+ *  @author Tamas Koteles
+ */
+class MLockAppStateObserver
+	{
+	public:
+
+		/**
+		 * Lock status changes are handled trough HandleLockStatusChangedL method.
+		 * Must be overriden by derived class for observing.
+		 */
+		virtual void HandleLockStatusChangedL( TLockStatus aLockStatus ) = 0;
+
+	};
+
+#endif // __LOCKAPPSTATEOBSERVER_H__
+// End of File