//mmrcclient.h

// Copyright (c) 2007-2009 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:

//

/**

 @file

 @internalTechnology

*/

#ifndef RMMRCCLIENT_H

#define RMMRCCLIENT_H

// INCLUDES

#include <e32std.h>

#include <e32base.h>

#include <a3f/a3fbase.h>

#include "maudiostreamadaptationobserver.h"

class MAudioContext;

class MLogicalChain;

class MMultimediaResourceControlObserver;

class CMMRCServer;

class CMMRCServerSession;

class CMMRCClientImplementation;

class CAudioContext;

// CLASS DECLARATION

//

// This class opens connection and provides functions to MMRC server.

//

// @lib mmrcclient.lib

//

class RMMRCClient

	{

public:

	IMPORT_C RMMRCClient();

	IMPORT_C virtual ~RMMRCClient();

    //

     // Open connection to server.

     //

     // @param aConnection Interface to server, must not be connected.

     // @param aCallback Callback interface.

     // @return an error code. KErrNone if successful, otherwise one of the system wide error codes.

     //

	IMPORT_C TInt Open(MMultimediaResourceControlObserver& aCallback);

    //

     // Zero is invalid Context id and indicates error.

     // @param aProcessId Process Id.

     // @return TUint32 Context Id.

     //

	IMPORT_C TUint64 LogOn(TProcessId aProcessId);

    //

     // Asynchronous return to ReceiveResourceResponse.

     //

     // @param aMessage Message to be sent.

     // @return an error code. KErrNone if successful, otherwise one of the system wide error codes.

     //

	IMPORT_C TInt SendResourceRequest(MLogicalChain* aCurrent, MLogicalChain* aDesired, CAudioContext* aContext);

    //

     // Synchronous.

     //

     // @return an error code. KErrNone if successful, otherwise one of the system wide error codes.

     //

	IMPORT_C TInt SendResourceConfirmation();

    //

     // Synchronous.

     //

     // @return an error code. KErrNone if successful, otherwise one of the system wide error codes.

     //

	IMPORT_C TInt SendResourceUpdateResult();

    //

     // Synchronous.

     //

     // @return an error code. KErrNone if successful, otherwise one of the system wide error codes.

     //

	IMPORT_C TInt SendResourceErrorNotification();

	//

     // Close connection to server.

	 //

	IMPORT_C void Close();

	//

     // Register a client for notification.

	 //

	IMPORT_C TInt RegisterAsClient(TUid aEventType, const TDesC8& aNotificationRegistrationData);

	//

     // Cancel the register of a client for notification.

	 //

	IMPORT_C TInt CancelRegisterAsClient(TUid aEventType);

	//

     // 

	 //

	IMPORT_C TInt WillResumePlay();

	IMPORT_C void ResetMessages();

private:

	CMMRCClientImplementation* iImplementation;

	};

#endif  // RMMRCCLIENT_H