// 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:

//

/**

 @file

 @publishedAll

 @released

*/

#ifndef REMCONABSOLUTEVOLUMEAPITARGET_H

#define REMCONABSOLUTEVOLUMEAPITARGET_H

#include <remcon/remconinterfacebase.h>

#include <remcon/remconinterfaceif.h>

_LIT(KAbsoluteVolumeTargetPanicName, "AbsoluteVolumeTarget");

enum TAbsoluteVolumeTargetPanics

    {

    ETargetInvalidMaxVolume = 0,

    ETargetVolumeBeyondMaxVolume = 1,

    };

class MRemConAbsoluteVolumeTargetObserver;

/**

Client-instantiable type supporting sending absolute volume API responses for

Set Absolute Volume and Register Absolute Volume Change Notification. This API

should be used in preference to the extapi.

*/

NONSHARABLE_CLASS(CRemConAbsoluteVolumeTarget) : public CRemConInterfaceBase,

                                                 public MRemConInterfaceIf2

	{

public:

	IMPORT_C static CRemConAbsoluteVolumeTarget* NewL(

			CRemConInterfaceSelector& aInterfaceSelector, 

			MRemConAbsoluteVolumeTargetObserver& aObserver,

			TUint32 aVolume, 

			TUint32 aMaxVolume);

	IMPORT_C ~CRemConAbsoluteVolumeTarget();

public:

	IMPORT_C void SetAbsoluteVolumeResponse(TUint32 aVolume, 

			TInt aErr);

	IMPORT_C void AbsoluteVolumeChanged(TUint32 aVolume);

private:

    CRemConAbsoluteVolumeTarget(CRemConInterfaceSelector& aInterfaceSelector,

    		MRemConAbsoluteVolumeTargetObserver& aObserver,

    		TUint32 aVolume, 

    		TUint32 aMaxVolume);

	void ConstructL();

private: // From CRemConInterfaceBase

	TAny* GetInterfaceIf(TUid aUid);

private: // From MRemConInterfaceIf2

	void MrcibNewMessage(TUint aOperationId, 

			const TDesC8& aData, 

			TRemConMessageSubType aMsgSubType);

private: // Utility Funtions

	void SendError(TInt aError, TUint aOperationId);

	void SendNotificationResponse(TRemConMessageSubType aMsgSubType);

	void ProcessGetStatus();

	void ProcessGetStatusAndBeginObserving();

	void ProcessSetAbsoluteVolume(const TDesC8& aData);

private: // Unowned

    MRemConAbsoluteVolumeTargetObserver& iObserver;

private: // Owned

	// ETrue indicates a request for absolute volume change notification has 

	// been received.

	TBool                     iAbsoluteVolumeNotificationRequest;

	RBuf8                     iOutBuf;

	TUint32                   iClientVolume;

	TUint32                   iClientMaxVolume;

	};

#endif // ABSOLUTEVOLUMEAPITARGET_H