/*

* Copyright (c) 2004 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:   Implementation of the RoomLevel proxy class

*

*/

// INCLUDE FILES

#ifdef _DEBUG

#include <e32svr.h>

#endif

#include "RoomLevelProxy.h"

#include "RoomLevelEventObserver.h"

#include <CustomInterfaceUtility.h>

#include "EnvironmentalReverbProxy.h"

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------

// CRoomLevelProxy::CRoomLevelProxy

// C++ default constructor can NOT contain any code, that

// might leave.

// -----------------------------------------------------------------------------

//

CRoomLevelProxy::CRoomLevelProxy(

	TMMFMessageDestinationPckg aMessageHandler,

	MCustomCommand& aCustomCommand,

	CCustomInterfaceUtility* aCustomInterfaceUtility )

	: 	iCustomCommand(&aCustomCommand),

		iMessageHandler(aMessageHandler),

		iCustomInterfaceUtility(aCustomInterfaceUtility)

    {

    }

// Destructor

CRoomLevelProxy::~CRoomLevelProxy()

  {

    // Remove the custom interface message handler before we destroy the proxy.

    if (iClientReverb)

       ((CEnvironmentalReverbProxy*)iClientReverb)->RoomLevelDetached(*this);

    if (iCustomInterfaceUtility)

        iCustomInterfaceUtility->RemoveCustomInterface(iMessageHandler);

 	delete iRoomLevelEventObserver;

	delete iCustomInterfaceUtility;

	}

// -----------------------------------------------------------------------------

// CRoomLevelProxy::NewL

// Static function for creating an instance of the Environmental RoomLevel object.

// -----------------------------------------------------------------------------

//

EXPORT_C CRoomLevelProxy* CRoomLevelProxy::NewL(

	TMMFMessageDestinationPckg aMessageHandler,

    MCustomCommand& aCustomCommand,

    CCustomInterfaceUtility* aCustomInterfaceUtility )

    {

    CRoomLevelProxy* self = new (ELeave) CRoomLevelProxy(aMessageHandler, aCustomCommand, aCustomInterfaceUtility);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

	}

// -----------------------------------------------------------------------------

// CRoomLevelProxy::ConstructL

// -----------------------------------------------------------------------------

//

void CRoomLevelProxy::ConstructL()

    {

#ifdef _DEBUG

    RDebug::Print(_L("CRoomLevelProxy::ConstructL"));

#endif

    iRoomLevelEventObserver = CRoomLevelEventObserver::NewL(iMessageHandler, *iCustomCommand, *this);

    StartObserver();

    // sends a message to fetch initial data.

    TEfRoomLevelDataPckg dataPckgFrom;

	iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)ERoomInitialize, KNullDesC8, KNullDesC8, dataPckgFrom);

	SetEffectData(dataPckgFrom);

	}

// -----------------------------------------------------------------------------

// CRoomLevelProxy::ApplyL

// Apply the Environmental RoomLevel settings.

// -----------------------------------------------------------------------------

//

EXPORT_C void CRoomLevelProxy::ApplyL()

	{

#ifdef _DEBUG

    RDebug::Print(_L("CRoomLevelProxy::Apply"));

#endif

	if ( !iHaveUpdateRights )

		{

		User::Leave(KErrAccessDenied);

		}

	iRoomLevelData.iEnabled = iEnabled;

	iRoomLevelData.iEnforced = iEnforced;

	iRoomLevelData.iHaveUpdateRights = iHaveUpdateRights;

	iCustomCommand->CustomCommandSync(iMessageHandler, (TInt)ERoomApply, DoEffectData(), KNullDesC8);

	}

// -----------------------------------------------------------------------------

// CRoomLevelProxy::StartObserver

// Starts the event observer. The event observer monitors asynchronous events

// from the message handler.

// -----------------------------------------------------------------------------

//

void CRoomLevelProxy::StartObserver()

	{

#ifdef _DEBUG

    RDebug::Print(_L("CRoomLevelProxy::StartObserver"));

#endif

	iRoomLevelEventObserver->Start();

	}

// -----------------------------------------------------------------------------

// CRoomLevelProxy::RoomLevelEvent

// Checks which data member has changed and notify the observers.

// -----------------------------------------------------------------------------

//

void CRoomLevelProxy::RoomLevelEvent(

	const TDesC8& aBuffer )

	{

#ifdef _DEBUG

    RDebug::Print(_L("CRoomLevelProxy::RoomLevelEvent"));

#endif

	TEfRoomLevelDataPckg dataPckgFrom;

	dataPckgFrom.Copy(aBuffer);

	TEfRoomLevel newRoomLevelData = dataPckgFrom();  

	TUint8 event = 0;

	if ( newRoomLevelData.iEnabled != iRoomLevelData.iEnabled )

		{

		iRoomLevelData.iEnabled = newRoomLevelData.iEnabled;

		iEnabled = newRoomLevelData.iEnabled;

		if ( iRoomLevelData.iEnabled )

			{

			event = MAudioEffectObserver::KEnabled;

			}

		else

			{

			event = MAudioEffectObserver::KDisabled;

			}

		}

	else if ( newRoomLevelData.iEnforced != iRoomLevelData.iEnforced )

		{

		iRoomLevelData.iEnforced = newRoomLevelData.iEnforced;

		iEnforced = newRoomLevelData.iEnforced;

		if ( iRoomLevelData.iEnforced )

			{

			event = MAudioEffectObserver::KEnforced;

			}

		else

			{

			event = MAudioEffectObserver::KNotEnforced;

			}

		}

	else if ( newRoomLevelData.iHaveUpdateRights != iRoomLevelData.iHaveUpdateRights )

		{

		iRoomLevelData.iHaveUpdateRights = newRoomLevelData.iHaveUpdateRights;

		iHaveUpdateRights = newRoomLevelData.iHaveUpdateRights;

		if ( iRoomLevelData.iHaveUpdateRights )

			{

			event = MAudioEffectObserver::KGainedUpdateRights;

			}

		else

			{

			event = MAudioEffectObserver::KLostUpdateRights;

			}

		}

	else if ( newRoomLevelData.iEnvironmentalReverbId != iRoomLevelData.iEnvironmentalReverbId )

		{

		iRoomLevelData.iEnvironmentalReverbId = newRoomLevelData.iEnvironmentalReverbId;

//		event = MRoomLevelObserver::KRoomLevelChanged;

		}

	else if ( newRoomLevelData.iStreamRoomLevel != iRoomLevelData.iStreamRoomLevel )

		{

		iRoomLevelData.iStreamRoomLevel = newRoomLevelData.iStreamRoomLevel;

		event = MRoomLevelObserver::KRoomLevelChanged;

		}

	else if ( newRoomLevelData.iStreamMinRoomLevel != iRoomLevelData.iStreamMinRoomLevel )

		{

		iRoomLevelData.iStreamMinRoomLevel = newRoomLevelData.iStreamMinRoomLevel;

//		event = MRoomLevelObserver::KMinRoomLevelChanged;

		}

	else if ( newRoomLevelData.iStreamMaxRoomLevel != iRoomLevelData.iStreamMaxRoomLevel )

		{

		iRoomLevelData.iStreamMaxRoomLevel = newRoomLevelData.iStreamMaxRoomLevel;

//		event = MRoomLevelObserver::KMinRoomLevelChanged;

		}

	if (!event)

		return;

	for ( TInt i = 0; i < iObservers.Count(); i++ )

		{

		iObservers[i]->EffectChanged(this, event);

		}

	}

// -----------------------------------------------------------------------------

// CRoomLevelProxy::AttachReverb

// Set room level's reverb ID

// -----------------------------------------------------------------------------

//

TInt CRoomLevelProxy::AttachReverb(CEnvironmentalReverb& aReverb)

{

	TInt err(KErrNone);

	iRoomLevelData.iEnvironmentalReverbId = ((CEnvironmentalReverbProxy&)aReverb).GetUniqueId();

    TRAP(err,(((CEnvironmentalReverbProxy&)(aReverb)).RoomLevelAttached(*this)));

    return err;

}

// -----------------------------------------------------------------------------

// CRoomLevelProxy::DettachReverb

// 

// -----------------------------------------------------------------------------

//

TInt CRoomLevelProxy::DettachReverb(CEnvironmentalReverb& aReverb)

{

    TInt status(KErrNone);

    iClientReverb = NULL;

    if ( iCustomInterfaceUtility )

        {

        iCustomInterfaceUtility->RemoveCustomInterface(iMessageHandler);

        }

    TRAP(status,(((CEnvironmentalReverbProxy&)(aReverb)).RoomLevelDetached(*this)));

    return status;

}

// ========================== OTHER EXPORTED FUNCTIONS =========================

// End of File