diff -r 40a3f856b14d -r 41a7f70b3818 phoneapp/phoneringingtoneplayer/inc/mphoneaudioplayerobserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/phoneapp/phoneringingtoneplayer/inc/mphoneaudioplayerobserver.h	Tue Aug 31 15:14:29 2010 +0300
@@ -0,0 +1,75 @@
+/*
+* 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 MPHONEAUDIOPLAYEROBSERVER_H
+#define MPHONEAUDIOPLAYEROBSERVER_H
+
+// User includes
+#include "phoneconstants.h"
+
+// Class declaration
+
+/**
+*  Observer interface for audio player.
+*
+* @since 1.0
+*/
+class MPhoneAudioPlayerObserver
+    {
+    public:  // Constructors and destructor
+        
+        // Enumerates different failures.
+        //
+        // EAudioPlayerInitializingFailure - failure in initialising
+        // EAudioPlayerPlayingFailure - failure during playing
+        enum TPhoneAudioPlayerErrorEvent
+            {
+            EAudioPlayerInitializingFailure,
+            EAudioPlayerPlayingFailure
+            };
+        
+        /**
+        * Observe the error.
+        * @param aEvent the error event happend in initializing or playing.
+        * @param aError The error code return by audio server. Observer can 
+        *               handle  these two error code for recoverable 
+        *               and unrecoverable errors.
+        * @param aId Indicate which audio player is outof working.
+        */
+        virtual void HandleAudioPlayerError( 
+            TPhoneAudioPlayerErrorEvent aEvent,
+            TInt aError, 
+            TInt aId = KPhoneAudioPlayerNotSpecified ) = 0;
+
+        /**
+        * This function is called when audio player initialization complete.
+        * @param aId The id of the audio player.
+        */
+        virtual void HandleAudioPlayerInitComplete(
+            TInt aId = KPhoneAudioPlayerNotSpecified ) = 0;
+
+        /**
+        * This funciton is called after the playing complete successfully.
+        * @param aId The id of the audio player.
+        */
+        virtual void HandlePlayingComplete( 
+            TInt aId = KPhoneAudioPlayerNotSpecified ) = 0;
+    };
+
+#endif      // MPHONEAUDIOPLAYEROBSERVER_H   
+            
+// End of File