/*

* 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 Distance Attenuation proxy class

*

*/

// INCLUDE FILES

#ifdef _DEBUG

#include <e32svr.h>

#endif

#include "DistanceAttenuationProxy.h"

#include "DistanceAttenuationEventObserver.h"

#include <CustomInterfaceUtility.h>

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

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

// CDistanceAttenuationProxy::CDistanceAttenuationProxy

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

// might leave.

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

//

CDistanceAttenuationProxy::CDistanceAttenuationProxy(

	TMMFMessageDestinationPckg aMessageHandler,

	MCustomCommand& aCustomCommand,

	CCustomInterfaceUtility* aCustomInterfaceUtility )

	: 	iCustomCommand(&aCustomCommand),

		iMessageHandler(aMessageHandler),

		iCustomInterfaceUtility(aCustomInterfaceUtility)

    {

    }

// Destructor

CDistanceAttenuationProxy::~CDistanceAttenuationProxy()

    {

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

    if(iCustomInterfaceUtility)

        iCustomInterfaceUtility->RemoveCustomInterface(iMessageHandler);

	delete iDistanceAttenuationEventObserver;

	delete iCustomInterfaceUtility;

	}

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

// CDistanceAttenuationProxy::NewL

// Static function for creating an instance of the Distance Attenuation object.

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

//

EXPORT_C CDistanceAttenuationProxy* CDistanceAttenuationProxy::NewL(

	TMMFMessageDestinationPckg aMessageHandler,

    MCustomCommand& aCustomCommand,

    CCustomInterfaceUtility* aCustomInterfaceUtility )

    {

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

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

	}

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

// CDistanceAttenuationProxy::ConstructL

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

//

void CDistanceAttenuationProxy::ConstructL()

    {

#ifdef _DEBUG

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

#endif

    iDistanceAttenuationEventObserver = CDistanceAttenuationEventObserver::NewL(iMessageHandler, *iCustomCommand, *this);

    StartObserver();

    // sends a message to fetch initial data.

    TEfDistanceAttenuationDataPckg dataPckgFrom;

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

	SetEffectData(dataPckgFrom);

	}

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

// CDistanceAttenuationProxy::ApplyL

// Apply the Distance Attenuation settings.

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

//

EXPORT_C void CDistanceAttenuationProxy::ApplyL()

	{

#ifdef _DEBUG

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

#endif

	if ( !iHaveUpdateRights )

		{

		User::Leave(KErrAccessDenied);

		}

	iDistanceAttenuationData.iEnabled = iEnabled;

	iDistanceAttenuationData.iEnforced = iEnforced;

	iDistanceAttenuationData.iHaveUpdateRights = iHaveUpdateRights;

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

	}

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

// CDistanceAttenuationProxy::StartObserver

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

// from the message handler.

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

//

void CDistanceAttenuationProxy::StartObserver()

	{

#ifdef _DEBUG

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

#endif

	iDistanceAttenuationEventObserver->Start();

	}

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

// CDistanceAttenuationProxy::DistanceAttenuationEvent

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

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

//

void CDistanceAttenuationProxy::DistanceAttenuationEvent(

	const TDesC8& aBuffer )

	{

#ifdef _DEBUG

    RDebug::Print(_L("CDistanceAttenuationProxy::DistanceAttenuationEvent"));

#endif

	TEfDistanceAttenuationDataPckg dataPckgFrom;

	dataPckgFrom.Copy(aBuffer);

	TEfDistanceAttenuation newDistanceAttenuationData = dataPckgFrom();

	TUint8 event = 0;

		if ( newDistanceAttenuationData.iEnabled != iDistanceAttenuationData.iEnabled )

			{

			iDistanceAttenuationData.iEnabled = newDistanceAttenuationData.iEnabled;

			iEnabled = newDistanceAttenuationData.iEnabled;

			if ( iDistanceAttenuationData.iEnabled )

				{

				event = MAudioEffectObserver::KEnabled;

				}

			else

				{

				event = MAudioEffectObserver::KDisabled;

				}

			}

		else if ( newDistanceAttenuationData.iEnforced != iDistanceAttenuationData.iEnforced )

			{

			iDistanceAttenuationData.iEnforced = newDistanceAttenuationData.iEnforced;

			iEnforced = newDistanceAttenuationData.iEnforced;

			if ( iDistanceAttenuationData.iEnforced )

				{

				event = MAudioEffectObserver::KEnforced;

				}

			else

				{

				event = MAudioEffectObserver::KNotEnforced;

				}

			}

		else if ( newDistanceAttenuationData.iHaveUpdateRights != iDistanceAttenuationData.iHaveUpdateRights )

			{

			iDistanceAttenuationData.iHaveUpdateRights = newDistanceAttenuationData.iHaveUpdateRights;

			iHaveUpdateRights = newDistanceAttenuationData.iHaveUpdateRights;

			if ( iDistanceAttenuationData.iHaveUpdateRights )

				{

				event = MAudioEffectObserver::KGainedUpdateRights;

				}

			else

				{

				event = MAudioEffectObserver::KLostUpdateRights;

				}

			}

		else if ( newDistanceAttenuationData.iRMin != iDistanceAttenuationData.iRMin )

			{

			iDistanceAttenuationData.iRMin = newDistanceAttenuationData.iRMin;

			event = MDistanceAttenuationObserver::KDistanceAttenuationChanged;

			}

		else if ( newDistanceAttenuationData.iRMax != iDistanceAttenuationData.iRMax )

			{

			iDistanceAttenuationData.iRMax = newDistanceAttenuationData.iRMax;

			event = MDistanceAttenuationObserver::KDistanceAttenuationChanged;

			}

		else if ( newDistanceAttenuationData.iMuteAfterMax != iDistanceAttenuationData.iMuteAfterMax )

			{

			iDistanceAttenuationData.iMuteAfterMax = newDistanceAttenuationData.iMuteAfterMax;

			event = MDistanceAttenuationObserver::KDistanceAttenuationChanged;

			}

		else if ( newDistanceAttenuationData.iRollOffFactor != iDistanceAttenuationData.iRollOffFactor )

			{

			iDistanceAttenuationData.iRollOffFactor = newDistanceAttenuationData.iRollOffFactor;

			event = MDistanceAttenuationObserver::KDistanceAttenuationChanged;

			}

		else if ( newDistanceAttenuationData.iRoomRollOffFactor != iDistanceAttenuationData.iRoomRollOffFactor )

			{

			iDistanceAttenuationData.iRoomRollOffFactor = newDistanceAttenuationData.iRoomRollOffFactor;

			event = MDistanceAttenuationObserver::KDistanceAttenuationChanged;

			}

		else if ( newDistanceAttenuationData.iRollOffFactorMax != iDistanceAttenuationData.iRollOffFactorMax )

			{

			iDistanceAttenuationData.iRollOffFactorMax = newDistanceAttenuationData.iRollOffFactorMax;

			event = MDistanceAttenuationObserver::KDistanceAttenuationChanged;

			}

		else if ( newDistanceAttenuationData.iRoomRollOffFactorMax != iDistanceAttenuationData.iRoomRollOffFactorMax )

			{

			iDistanceAttenuationData.iRoomRollOffFactorMax = newDistanceAttenuationData.iRoomRollOffFactorMax;

			event = MDistanceAttenuationObserver::KDistanceAttenuationChanged;

			}

	if (!event)

		return;

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

		{

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

		}

	}

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

// End of File