/*

* Copyright (c) 2002-2005 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:  Used for receive SIM Application name, icon or 

*                visibility information.

*

*/

// INCLUDE FILES

#include "mcscachehandler.h"

#include "menueng.h"

#include "menuengobject.h"

#include "menusrvengutils.h"

#include "mcsmenunotifier.h"

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

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

// CMcsCacheHandler::NewL

// Two-phased constructor.

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

//

EXPORT_C CMcsCacheHandler* CMcsCacheHandler::NewL( 

    CMenuEng& aEng,

    CMenuSrvEngUtils& aUtils )

    {

    CMcsCacheHandler* self = new( ELeave ) CMcsCacheHandler( aEng, aUtils );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// Destructor

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

CMcsCacheHandler::~CMcsCacheHandler()

    {

    iAttrCache.ResetAndDestroy();

    }

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

// CMcsCacheHandler::CMcsCacheHandler

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

// might leave.

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

//

CMcsCacheHandler::CMcsCacheHandler( 

    CMenuEng& aEng,

    CMenuSrvEngUtils& aUtils ): iEng( aEng ), iUtils( aUtils )

    {

    }

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

// CMcsDrmHandler::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CMcsCacheHandler::ConstructL()

    {

    }

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

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

//     

void CMcsCacheHandler::HandleRemoveId( TInt aId )

    {

    iAttrCache.RemoveId( aId );

    }

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

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

// 

void CMcsCacheHandler::HandleRemoveAttribute( TInt aId, const TDesC& aAttrName )

	{

	iAttrCache.RemoveAttribute(aId, aAttrName);

	}

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

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

//        

void CMcsCacheHandler::EngineEvents( TInt aEvents )

    {

    if( aEvents & RMenuNotifier::EItemsAddedRemoved )

        {

        RemoveNotExistItems();

        }

    if( aEvents & RMenuNotifier::EItemAttributeChanged )

        {

        TRAP_IGNORE(RemoveItemsWithChangedAttributesL());

        }

    }

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

// RMenuSrvAttrArray::RemoveId

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

//

void CMcsCacheHandler::RemoveItemsWithChangedAttributesL()

    {

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

        {

        TBool dummy;

        TBool exist;

        TInt id = iAttrCache[i]->Id();

        TPtrC name = iAttrCache[i]->Name();

        TPtrC valueCache = iAttrCache[i]->Value();

        TPtrC valueXml(KNullDesC);

        exist = iEng.ObjectL(id).FindAttribute( name, valueXml, dummy );

        if( exist && valueXml != valueCache )

            {

            iAttrCache.RemoveAttribute( id, name );

            i--;

            }

        }

    }

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

// RMenuSrvAttrArray::RemoveId

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

//

void CMcsCacheHandler::RemoveNotExistItems()

    {

    TInt id( KErrNone );

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

        {

        if( id != iAttrCache[i]->Id() )

            {

            id = iAttrCache[i]->Id();

            if( !iEng.Exist( id ) )

                {

                iAttrCache.RemoveId( id );

                i--;

                }

            }

        }

    }

//  End of File