/*

* Copyright (c) 2002 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:  Provides initialization and uninitialization for

*               secui resource file.

*

*

*/

#include <e32std.h>

#include <eikenv.h>

#include <bautils.h>

#include "secui.h"

#include 	<data_caging_path_literals.hrh>

_LIT(KDirAndFile,"z:SecUi.rsc");

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

//

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

// TSecUi::InitializeLibL()

// Initializes SecUi resource file

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

//

EXPORT_C void TSecUi::InitializeLibL()

	{

	if (Dll::Tls()!=NULL)

    {//Secui has been initialized already; increase client count.

        #if defined(_DEBUG)

        RDebug::Print(_L("(SECUI): InitializeLibL: Secui has been initialized already"));

        #endif

        TSecUi* instance=(TSecUi*) Dll::Tls();

        instance->IncreaseClientCount();

        return;

    }

    #if defined(_DEBUG)

    RDebug::Print(_L("(SECUI): InitializeLibL: First initialization"));

    #endif

	TSecUi* self = new (ELeave) TSecUi();

	CleanupStack::PushL(self);

	self->ConstructL();

    self->IncreaseClientCount();

	Dll::SetTls(self);

	CleanupStack::Pop();

	}

//

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

// TSecUi::UnInitializeLib()

// Uninitializes SecUi resource file

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

//

EXPORT_C void TSecUi::UnInitializeLib()

	{

    if (Dll::Tls()==NULL)

        return;

    #if defined(_DEBUG)

    RDebug::Print(_L("(SECUI): UnInitializeLibL"));

    #endif

	TSecUi* instance=(TSecUi*) Dll::Tls();

    instance->DecreaseClientCount();

    //only delete the lib is there are no clients using it

    if(instance->CanBeFreed())

        {

        #if defined(_DEBUG)

        RDebug::Print(_L("(SECUI): UnInitializeLibL: Last uninitialize"));

        #endif

	    delete instance;

	    Dll::SetTls(NULL);

        }

	}

//

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

// TSecUi::TSecUi()

// C++ default constructor

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

//

TSecUi::TSecUi()

	{

	}

//

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

// TSecUi::TSecUi()

// Destructor

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

//

TSecUi::~TSecUi()

	{

	if (iResourceFileOffset >= 0)

		{

		CEikonEnv::Static()->DeleteResourceFile(iResourceFileOffset);

		}

	}

//

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

// TSecUi::ConstructL()

// Symbian OS default constructor

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

//

void TSecUi::ConstructL()

	{

	iResourceFileOffset = CCoeEnv::Static()->AddResourceFileL(ResourceFileName());

    iClientCount = 0;

	}

//

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

// TSecUi::ResourceFileName

// Returns the resource file name of SecurityUI dll.

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

//

TFileName TSecUi::ResourceFileName()

	{

	TParse parse;

    parse.Set(KDirAndFile, &KDC_RESOURCE_FILES_DIR, NULL); 

	TFileName resourceFileName(parse.FullName());

	BaflUtils::NearestLanguageFile(CCoeEnv::Static()->FsSession(), resourceFileName);

	return resourceFileName;

	}

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

// TSecUi::CanBeFreed()

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

//

TBool TSecUi::CanBeFreed()

    {

	if (iClientCount <= 0)

	{

        #if defined(_DEBUG)

		RDebug::Print(_L("(SECUI): No clients; Can be freed: clients(%d) "), iClientCount);

        #endif

		return ETrue;

	}

	else

	{

        #if defined(_DEBUG)

		RDebug::Print(_L("(SECUI): Can NOT be freed: clients(%d) "), iClientCount);

		#endif

        return EFalse;

	}

    }

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

// TSecUi::IncreaseClientCount()

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

//

void TSecUi::IncreaseClientCount()

    {

	++iClientCount;

    #if defined(_DEBUG)

	RDebug::Print(_L("(SECUI): IncreaseClientCount, clients now(%d) "), iClientCount);

    #endif

    }

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

// TSecUi::DecreaseClientCount()

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

//

void TSecUi::DecreaseClientCount()

    {

	--iClientCount;

    #if defined(_DEBUG)

	RDebug::Print(_L("(SECUI): DecreaseClientCount, clients now(%d) "), iClientCount);

    #endif

    }

// End of file