/*

* Copyright (c) 2009-2010 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:

* Definition file for the EnvironmentChangeNotifier class.

*

*/

// System includes

#include <bacntf.h>

// User includes

#include "environmentchangenotifier.h"

#include "timezoneclient.h"

#include "OstTraceDefinitions.h"

#ifdef OST_TRACE_COMPILER_IN_USE

#include "environmentchangenotifierTraces.h"

#endif

/*!

	\class EnvironmentChangeNotifier

	This class listens to the enviroment changes and notifies the client.

 */

/*!

	The constructor.

 */

EnvironmentChangeNotifier::EnvironmentChangeNotifier(TimezoneClient *client)

{

	OstTraceFunctionEntry0( ENVIRONMENTCHANGENOTIFIER_ENVIRONMENTCHANGENOTIFIER_ENTRY );

	mTzClient = client;

	TCallBack callback(environmentCallback, this);

	mNotifier = CEnvironmentChangeNotifier::NewL(

			CActive::EPriorityStandard, callback);

	mNotifier->Start();

	OstTraceFunctionExit0( ENVIRONMENTCHANGENOTIFIER_ENVIRONMENTCHANGENOTIFIER_EXIT );

}

EnvironmentChangeNotifier::~EnvironmentChangeNotifier()

{

	OstTraceFunctionEntry0( DUP1_ENVIRONMENTCHANGENOTIFIER_ENVIRONMENTCHANGENOTIFIER_ENTRY );

	if (mNotifier) {

		mNotifier->Cancel();

		delete mNotifier;

		mNotifier = 0;

	}

	OstTraceFunctionExit0( DUP1_ENVIRONMENTCHANGENOTIFIER_ENVIRONMENTCHANGENOTIFIER_EXIT );

}

int EnvironmentChangeNotifier::environmentCallback(TAny* obj)

{

	OstTraceFunctionEntry0( ENVIRONMENTCHANGENOTIFIER_ENVIRONMENTCALLBACK_ENTRY );

	EnvironmentChangeNotifier* self =

			static_cast<EnvironmentChangeNotifier *> (obj);

	int changes = KInitialEvent;

	if (self->mNotifier) {

		changes = self->mNotifier->Change();

	}

	if (KInitialEvent <= changes) {

		// We're not concerned about handling environment changes in that range.

		OstTraceFunctionExit0( ENVIRONMENTCHANGENOTIFIER_ENVIRONMENTCALLBACK_EXIT );

		return 0;

	}

	if (changes & (EChangesMidnightCrossover |

			EChangesLocale |

			EChangesSystemTime)) {

//		emit self->timechanged(); TODO: notify timezone client.

//		

		self->notifyEnvChange();

	} else {

		// Nothing to do.

	}

	OstTraceFunctionExit0( DUP1_ENVIRONMENTCHANGENOTIFIER_ENVIRONMENTCALLBACK_EXIT );

	return 0;

}

void EnvironmentChangeNotifier::notifyEnvChange()

{

	OstTraceFunctionEntry0( ENVIRONMENTCHANGENOTIFIER_NOTIFYENVCHANGE_ENTRY );

	mTzClient->notifyTimeChange();

	OstTraceFunctionExit0( ENVIRONMENTCHANGENOTIFIER_NOTIFYENVCHANGE_EXIT );

}

// End of file -- Do not remove this.