// Copyright (c) 2008-2009 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 AVRCPCOMMAND_H

#define AVRCPCOMMAND_H

/**

@file

@internalComponent

@released

*/

#include <e32base.h>

#include <bluetoothav.h>

#include <bluetooth/avctptypes.h>

#include "avrcputils.h"

class CAvrcpPlayerInfoManager;

/**

This class is a base class for all AVRCP commands.  It provides 

the functionality that is common between the AV/C and Browse 

commands.

*/

NONSHARABLE_CLASS(CAvrcpCommand) : public CBase

	{

public:

	// called from Router

	void Sent();

	virtual SymbianAvctp::TMessageType MessageType() const = 0;

	// Called by users of command

	void DecrementUsers();

	void IncrementUsers();

	// Called from bearer

	void GetCommandInfo(TUid& aInterfaceUid, 

		TUint& aId, 

		TUint& aOperationId, 

		RBuf8& aCommandData, 

		TBTDevAddr& aAddr);

	virtual const TDesC8& Data() const = 0;

	const TBTDevAddr& RemoteAddress() const;

	SymbianAvctp::TTransactionLabel TransactionLabel() const;

	TUint RemConCommandId() const;

	const TUid& RemConInterfaceUid() const;

	TUint RemConOperationId() const;

	TBool KnownToBearer() const;

protected:

	explicit CAvrcpCommand(TUint aRemConId,

			SymbianAvctp::TTransactionLabel aTransactionLabel, 

			const TBTDevAddr& aAddr);

public:

	TAvrcpDblQueLink	iHandlingLink;	// Used to form handling queue in command handlers

	TAvrcpDblQueLink	iReadyLink;		// Used to form ready command queue in CRemConBearerAvrcp

	TAvrcpDblQueLink	iSendLink;		// Used to form send queue in CRcpRouter

protected:

	TUint							iRemConId;

	SymbianAvctp::TTransactionLabel	iTransactionLabel;

	TBTDevAddr						iRemoteAddr;

	TUid							iInterfaceUid;

	TUint							iOperationId;

	RBuf8							iCommandData;

	TUint							iUsers;

	TBool							iKnownToBearer;

	CAvrcpPlayerInfoManager*  		iPlayerInfoManager;

	};

#endif //AVRCPCOMMAND_H