/*

* Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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 "prerequisiteschecker.h"

#include "sisversionrange.h"

#include "sisversion.h"

#include "sisprerequisites.h"

#include "siscontroller.h"

#include "sisdependency.h"

#include "sisuid.h"

#include "sisinfo.h"

#include "checkedversion.h"

#include "sisinstallblock.h"

#include "log.h"

#include "sisregistryentry.h"

#include "sisinstallerrors.h"

#include <swi/msisuihandlers.h>

using namespace Swi;

using namespace Swi::Sis;

/*static*/ CPrerequisitesChecker* CPrerequisitesChecker::NewLC(

	RUiHandler& aInstallerUI, const Sis::CController& aController,

	CInstallationResult& aInstallationResult, const CContentProvider& aProvider,

	const Sis::CController& aMainController)

	{

	CPrerequisitesChecker* self = new(ELeave) CPrerequisitesChecker(aInstallerUI, aController, aInstallationResult, aProvider, aMainController);

	CleanupStack::PushL(self);

	self->ConstructL();

	return self;

	}

CPrerequisitesChecker::CPrerequisitesChecker(

	RUiHandler& aInstallerUI, const Sis::CController& aController,

	CInstallationResult& aInstallationResult, const CContentProvider& aProvider,

	const Sis::CController& aMainController)

	: CRequisitesChecker(aInstallerUI, aInstallationResult, aProvider), iController(aController), iMainController(aMainController)

	{

	}

CPrerequisitesChecker::~CPrerequisitesChecker()

	{

	}

void CPrerequisitesChecker::ConstructL() 

	{

	CRequisitesChecker::ConstructL();

	}

void CPrerequisitesChecker::CheckPrerequisitesL()

	{

	CheckEmbeddingDepthL(iController);

	CheckDependenciesL();

	}

void CPrerequisitesChecker::CheckEmbeddingDepthL(const Sis::CController& aController, TInt aCurrentDepth)

	{

	if (aCurrentDepth++ >= KMaximumEmbeddingDepth)

		{

		DEBUG_PRINTF2(_L8("Prerequisites - Controller with UID 0x%08x too deeply embedded"), aController.Info().Uid().Uid().iUid)

		User::Leave (KErrSISTooDeeplyEmbedded);

		}

	const RPointerArray<CController>& embeddeds = aController.InstallBlock().EmbeddedControllers();

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

		{

		CheckEmbeddingDepthL(*(embeddeds[i]), aCurrentDepth);

		}

	}

void CPrerequisitesChecker::CheckDependenciesL()	

	{

	if (!AnyOnDeviceL(iController.Prerequisites().TargetDevices()) ||

		!AllOnDeviceOrSISL(iController.Prerequisites().Dependencies(), iMainController))

		{

		User::Leave(KErrSISPrerequisitesMissingDependency);

		}

	}

;