/*

 * 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