diff -r 33a5d2bbf6fc -r 73a1feb507fb mmsharinguis_plat/live_comms_plugin_api/inc/lcsessionobserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmsharinguis_plat/live_comms_plugin_api/inc/lcsessionobserver.h	Tue Aug 31 15:12:07 2010 +0300
@@ -0,0 +1,95 @@
+/*
+* 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 MLCSESSIONOBSERVER_H
+#define MLCSESSIONOBSERVER_H
+
+// INCLUDES
+#include <e32std.h>
+
+// FORWARD DECLARATIONS
+class MLcSession;
+class MLcVideoPlayer;
+
+// CLASS DECLARATION
+/**
+* A callback for a Live Comms session related events. 
+*/
+class MLcSessionObserver
+    {
+    public:
+
+        /**
+        * The state of the session has changed.
+        * The new state can be obtained from the session.
+        * @param aSession the session
+        */
+        virtual void StateChanged( MLcSession& aSession ) = 0;
+    
+        /**
+        * The state of the player has changed.
+        * The new state can be obtained from the player.
+        * @param aPlayer the player
+        */
+        virtual void StateChanged( MLcVideoPlayer& aPlayer ) = 0;
+    
+        /**
+        * The session has been updated.
+        * For example a new player has been added.
+        * @param aSession the updated session
+        */
+        virtual void Updated( MLcSession& aSession ) = 0;
+
+        /**
+        * The session has been updated.
+        * For example a new control has been added or 
+        * an existing control has been updated.
+        * @param aPlayer the updated player
+        */
+        virtual void Updated( MLcVideoPlayer& aPlayer ) = 0;
+    
+        /**
+        * The session has failed.
+        * @param aSession the failed session
+        * @param aError the reason for the failure 
+        */
+    	virtual void Failed( 
+            MLcSession& aSession,
+            TInt aError ) = 0;
+    
+    	/**
+    	* The player has failed.
+    	* @param aPlayer the failed player
+    	* @param aError the reason for the failure 
+    	*/
+        virtual void Failed( 
+            MLcVideoPlayer& aPlayer, 
+            TInt aError ) = 0;
+    
+        /**
+        * The session duration time has changed.
+        * @param aSession the session
+        * @param aSeconds the current session duration.
+        */
+        virtual void SessionTimeChanged( 
+            MLcSession& aSession,
+            const TTimeIntervalSeconds& aSeconds ) = 0;
+    };   
+    
+#endif // MLCSESSIONOBSERVER_H
+
+// end of file