--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/camerauis/cameraapp/generic/inc/CamObservable.h	Wed Sep 01 12:30:54 2010 +0100
@@ -0,0 +1,62 @@
+/*
+* 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:  Abstract interface for observable classes
+*
+*  Copyright © 2007 Nokia.  All rights reserved.
+*  This material, including documentation and any related computer
+*  programs, is protected by copyright controlled by Nokia.  All
+*  rights are reserved.  Copying, including reproducing, storing,
+*  adapting or translating, any or all of this material requires the
+*  prior written consent of Nokia.  This material also contains
+*  confidential information which may not be disclosed to others
+*  without the prior written consent of Nokia.
+
+*
+*
+*/
+
+
+// INCLUDE FILES
+#include "Cam.hrh"
+
+#ifndef MCAMOBSERVABLE_H
+#define MCAMOBSERVABLE_H
+
+class MCamObserver;
+
+class MCamObservable
+    {
+public:
+    /**
+    * Registers an observer if not previously registered
+    * @param aObserver The observer concerned
+    * @since 3.0
+    */
+    virtual void RegisterObserverL( MCamObserver* aObserver ) = 0;
+
+    /**
+    * Deregisters an observer if previously registered
+    * @param aObserver The observer concerned
+    * @since 3.0
+    */
+    virtual void DeregisterObserver( MCamObserver* aObserver ) = 0;
+
+    /**
+    * Broadcasts an event code to all registered observers
+    * @param aEvent The event code
+    */    
+    virtual void BroadcastEvent( TCamObserverEvent aEvent ) = 0;            
+    };
+    
+#endif // MCAMOBSERVABLE_H