sl@0: //mmrcclient.h
sl@0: 
sl@0: // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: 
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @internalTechnology
sl@0: */
sl@0: 
sl@0: #ifndef RMMRCCLIENT_H
sl@0: #define RMMRCCLIENT_H
sl@0: 
sl@0: // INCLUDES
sl@0: #include <e32std.h>
sl@0: #include <e32base.h>
sl@0: #include <a3f/a3fbase.h>
sl@0: #include "maudiostreamadaptationobserver.h"
sl@0: 
sl@0: class MAudioContext;
sl@0: class MLogicalChain;
sl@0: class MMultimediaResourceControlObserver;
sl@0: class CMMRCServer;
sl@0: class CMMRCServerSession;
sl@0: class CMMRCClientImplementation;
sl@0: class CAudioContext;
sl@0: 
sl@0: // CLASS DECLARATION
sl@0: //
sl@0: // This class opens connection and provides functions to MMRC server.
sl@0: //
sl@0: // @lib mmrcclient.lib
sl@0: //
sl@0: class RMMRCClient
sl@0: 	{
sl@0: public:
sl@0: 	IMPORT_C RMMRCClient();
sl@0: 
sl@0: 	IMPORT_C virtual ~RMMRCClient();
sl@0: 
sl@0:     //
sl@0:      // Open connection to server.
sl@0:      //
sl@0:      // @param aConnection Interface to server, must not be connected.
sl@0:      // @param aCallback Callback interface.
sl@0:      // @return an error code. KErrNone if successful, otherwise one of the system wide error codes.
sl@0:      //
sl@0: 	IMPORT_C TInt Open(MMultimediaResourceControlObserver& aCallback);
sl@0: 
sl@0:     //
sl@0:      // Zero is invalid Context id and indicates error.
sl@0:      // @param aProcessId Process Id.
sl@0:      // @return TUint32 Context Id.
sl@0:      //
sl@0: 	IMPORT_C TUint64 LogOn(TProcessId aProcessId);
sl@0: 
sl@0:     //
sl@0:      // Asynchronous return to ReceiveResourceResponse.
sl@0:      //
sl@0:      // @param aMessage Message to be sent.
sl@0:      // @return an error code. KErrNone if successful, otherwise one of the system wide error codes.
sl@0:      //
sl@0: 	IMPORT_C TInt SendResourceRequest(MLogicalChain* aCurrent, MLogicalChain* aDesired, CAudioContext* aContext);
sl@0: 
sl@0:     //
sl@0:      // Synchronous.
sl@0:      //
sl@0:      // @return an error code. KErrNone if successful, otherwise one of the system wide error codes.
sl@0:      //
sl@0: 	IMPORT_C TInt SendResourceConfirmation();
sl@0: 
sl@0:     //
sl@0:      // Synchronous.
sl@0:      //
sl@0:      // @return an error code. KErrNone if successful, otherwise one of the system wide error codes.
sl@0:      //
sl@0: 	IMPORT_C TInt SendResourceUpdateResult();
sl@0: 
sl@0:     //
sl@0:      // Synchronous.
sl@0:      //
sl@0:      // @return an error code. KErrNone if successful, otherwise one of the system wide error codes.
sl@0:      //
sl@0: 	IMPORT_C TInt SendResourceErrorNotification();
sl@0: 
sl@0: 	//
sl@0:      // Close connection to server.
sl@0: 	 //
sl@0: 	IMPORT_C void Close();
sl@0: 	//
sl@0:      // Register a client for notification.
sl@0: 	 //
sl@0: 	IMPORT_C TInt RegisterAsClient(TUid aEventType, const TDesC8& aNotificationRegistrationData);
sl@0: 	
sl@0: 	//
sl@0:      // Cancel the register of a client for notification.
sl@0: 	 //
sl@0: 	IMPORT_C TInt CancelRegisterAsClient(TUid aEventType);
sl@0: 	//
sl@0:      // 
sl@0: 	 //
sl@0: 	IMPORT_C TInt WillResumePlay();
sl@0: 
sl@0: 	IMPORT_C void ResetMessages();
sl@0: 	
sl@0: private:
sl@0: 	CMMRCClientImplementation* iImplementation;
sl@0: 	};
sl@0: 
sl@0: #endif  // RMMRCCLIENT_H