/*

* 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 bassboost proxy class

*

*/

// INCLUDE FILES

#ifdef _DEBUG

#include <e32svr.h>

#endif

#include "BassBoostProxy.h"

#include "BassBoostEventObserver.h"

#include <CustomInterfaceUtility.h>

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

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

// CBassBoostProxy::CBassBoostProxy

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

// might leave.

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

//

CBassBoostProxy::CBassBoostProxy(

	TMMFMessageDestinationPckg aMessageHandler,

	MCustomCommand& aCustomCommand,

	CCustomInterfaceUtility* aCustomInterfaceUtility )

	: 	iCustomCommand(&aCustomCommand),

		iMessageHandler(aMessageHandler),

		iCustomInterfaceUtility(aCustomInterfaceUtility)

    {

    }

// Destructor

CBassBoostProxy::~CBassBoostProxy()

    {

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

    if(iCustomInterfaceUtility)

        iCustomInterfaceUtility->RemoveCustomInterface(iMessageHandler);

	delete iBassBoostEventObserver;

	delete iCustomInterfaceUtility;

	}

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

// CBassBoostProxy::NewL

// Static function for creating an instance of the BassBoost object.

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

//

EXPORT_C CBassBoostProxy* CBassBoostProxy::NewL(

	TMMFMessageDestinationPckg aMessageHandler,

    MCustomCommand& aCustomCommand,

    CCustomInterfaceUtility* aCustomInterfaceUtility )

    {

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

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);

    return self;

	}

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

// CBassBoostProxy::ConstructL

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

//

void CBassBoostProxy::ConstructL()

    {

    iBassBoostEventObserver = CBassBoostEventObserver::NewL(iMessageHandler, *iCustomCommand, *this);

    StartObserver();

    TEfBassBoostDataPckg dataPckgFrom;

    // sends a message to fetch initial data.

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

	SetEffectData(dataPckgFrom);

	}

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

// CBassBoostProxy::ApplyL

// Apply the bassboost settings.

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

//

EXPORT_C void CBassBoostProxy::ApplyL()

	{

#ifdef _DEBUG

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

#endif

	if (iHaveUpdateRights )

		{

		iBassBoostData.iEnabled = iEnabled;

		iBassBoostData.iEnforced = iEnforced;

		iBassBoostData.iHaveUpdateRights = iHaveUpdateRights;

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

		}

	else

		{

		User::Leave(KErrAccessDenied);

		}

	}

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

// CBassBoostProxy::StartObserver

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

// from the message handler.

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

//

void CBassBoostProxy::StartObserver()

	{

#ifdef _DEBUG

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

#endif

	iBassBoostEventObserver->Start();

	}

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

// CBassBoostProxy::BassBoostEvent

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

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

//

void CBassBoostProxy::BassBoostEvent(

	const TDesC8& aBuffer )

	{

#ifdef _DEBUG

    RDebug::Print(_L("CBassBoostProxy::BassBoostEvent"));

#endif

	TEfBassBoostDataPckg dataPckgFrom;

	dataPckgFrom.Copy(aBuffer);

	TEfBassBoostData newBassBoostData = dataPckgFrom();

	TUint8 event = 0;

	if ( newBassBoostData.iEnabled != iBassBoostData.iEnabled )

		{

		iBassBoostData.iEnabled = newBassBoostData.iEnabled;

		iEnabled = newBassBoostData.iEnabled;

		if ( iBassBoostData.iEnabled )

			{

			event = MAudioEffectObserver::KEnabled;

			}

		else

			{

			event = MAudioEffectObserver::KDisabled;

			}

		}

	else if ( newBassBoostData.iEnforced != iBassBoostData.iEnforced )

		{

		iBassBoostData.iEnforced = newBassBoostData.iEnforced;

		iEnforced = newBassBoostData.iEnforced;

		if ( iBassBoostData.iEnforced )

			{

			event = MAudioEffectObserver::KEnforced;

			}

		else

			{

			event = MAudioEffectObserver::KNotEnforced;

			}

		}

	else if ( newBassBoostData.iHaveUpdateRights != iBassBoostData.iHaveUpdateRights )

		{

		iBassBoostData.iHaveUpdateRights = newBassBoostData.iHaveUpdateRights;

		iHaveUpdateRights = newBassBoostData.iHaveUpdateRights;

		if ( iBassBoostData.iHaveUpdateRights )

			{

			event = MAudioEffectObserver::KGainedUpdateRights;

			}

		else

			{

			event = MAudioEffectObserver::KLostUpdateRights;

			}

		}

	if (!event)

		return;

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

		{

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

		}

	}

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