--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/photosgallery/slideshow/engine/controlsrc/shweventobserver.h	Thu Dec 17 08:45:44 2009 +0200
@@ -0,0 +1,56 @@
+/*
+* Copyright (c) 2007-2008 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:    The event observer interface
+ *
+*/
+
+
+
+
+#ifndef __MSHWEVENTOBSERVER_H__
+#define __MSHWEVENTOBSERVER_H__
+
+// INCLUDES
+#include <e32std.h>
+#include <e32base.h>
+
+// Forward declarations
+class MShwEvent;
+
+// CLASS DECLARATION
+
+/**
+ *  MShwEventObserver
+ */
+class MShwEventObserver
+	{
+	protected:
+	
+		/**
+		 * Destructor. Dont allow deleting objects through this interface.
+		 */
+		virtual ~MShwEventObserver() {};
+
+	public: // the API
+
+		/**
+		 * Get notification that an event has occurred.
+		 * This method may leave, it is event queues task to handle errors.
+		 * @param aEvent, the event object describing the insident.
+		 */
+		virtual void NotifyL( MShwEvent* aEvent ) = 0;
+
+	};
+
+#endif // __MShwEventObserver_H__