// Copyright (c) 2008-2009 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:

//

#include "rsdisplaychangeao.h"

#include "displaypolicy.h"

CRsDisplayChangeNotifier::CRsDisplayChangeNotifier(MWsDisplayControl* aNextLevelInterface, CDisplayPolicy* aDisplayPolicy)

:CActive(EPriorityHigh),iWsStatus(NULL)

	{

	CActiveScheduler::Add(this);

	iNextLevelInterface = aNextLevelInterface;

	iDisplayPolicy = aDisplayPolicy;

	}

CRsDisplayChangeNotifier* CRsDisplayChangeNotifier::NewL(MWsDisplayControl* aNextLevelInterface, CDisplayPolicy* aDisplayPolicy)

	{

	CRsDisplayChangeNotifier* self = new(ELeave) CRsDisplayChangeNotifier(aNextLevelInterface, aDisplayPolicy);

	return self;

	}

void CRsDisplayChangeNotifier::IssueNotificationRequest()

	{

	iNextLevelInterface->NotifyOnDisplayChange(iStatus);

	SetActive();

	}

void CRsDisplayChangeNotifier::RegisterActiveStatus(TRequestStatus &aStatus)

	{

	iWsStatus = &aStatus;

	}

void CRsDisplayChangeNotifier::CancelNotificationRequest()

	{

	Cancel();

	}

void CRsDisplayChangeNotifier::RunL()

	{

	//IssueNotificationRequest will overwrite iStatus, save a copy first;

	TInt result = iStatus.Int();

	IssueNotificationRequest();

	//calculate min UI buffer size depending on physical resolutions

	TInt ret = iNextLevelInterface->NumberOfResolutions();

	RArray<MDisplayControlBase::TResolution> resolutions;

	CleanupClosePushL(resolutions);

	if(ret > 0)

		{

		//just ignore the error. if there's an error, an empty resolution list is passed in, and uibuffer

		//will remain the previous size

		iNextLevelInterface->GetResolutions(resolutions);

		}

	iDisplayPolicy->CalculateMinBufferSize(resolutions, ret);				

	CleanupStack::PopAndDestroy(&resolutions);

	if(iWsStatus && *iWsStatus == KRequestPending)

		{

		User::RequestComplete(iWsStatus, result);

		}

	}

void CRsDisplayChangeNotifier::DoCancel()

	{

	iNextLevelInterface->NotifyOnDisplayChangeCancel();

	if(iWsStatus && *iWsStatus == KRequestPending)

		User::RequestComplete(iWsStatus, KErrCancel);

	}

CRsDisplayChangeNotifier::~CRsDisplayChangeNotifier()

	{

	Cancel();

	}

CRsConfigChangeNotifier::CRsConfigChangeNotifier(MWsDisplayControl* aNextLevelInterface)

:CActive(EPriorityHigh), iWsStatus(NULL)

	{

	CActiveScheduler::Add(this);

	iNextLevelInterface = aNextLevelInterface;

	}

CRsConfigChangeNotifier* CRsConfigChangeNotifier::NewL(MWsDisplayControl* aNextLevelInterface)

	{

	CRsConfigChangeNotifier* self = new(ELeave) CRsConfigChangeNotifier(aNextLevelInterface);

	return self;

	}

void CRsConfigChangeNotifier::IssueNotificationRequest()

	{

	iNextLevelInterface->NotifyOnConfigChange(iStatus);

	SetActive();

	}

void CRsConfigChangeNotifier::RegisterActiveStatus(TRequestStatus &aStatus)

	{

	iWsStatus = &aStatus;

	}

void CRsConfigChangeNotifier::CancelNotificationRequest()

	{

	Cancel();

	}

void CRsConfigChangeNotifier::RunL()

	{

	//IssueNotificationRequest will overwrite iStatus, save a copy first;

	TInt result = iStatus.Int();

	IssueNotificationRequest();

	if(iWsStatus && *iWsStatus == KRequestPending)

		{

		User::RequestComplete(iWsStatus, result);

		}

	}

void CRsConfigChangeNotifier::DoCancel()

	{

	iNextLevelInterface->NotifyOnConfigChangeCancel();

	if(iWsStatus && *iWsStatus == KRequestPending)

		User::RequestComplete(iWsStatus, KErrCancel);

	}

CRsConfigChangeNotifier::~CRsConfigChangeNotifier()

	{

	Cancel();

	}