/*

* Copyright (c) 2006 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:  Configuration item base for configuration items.

*

*/

#include "ximpconfigurationitembase.h"

#include "ximpitemparent.h"

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

// CXIMPConfigurationItemBase::OrderOfItems()

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

//

TInt CXIMPConfigurationItemBase::OrderOfItems( const CXIMPConfigurationItemBase& aFirst, 

                                               const CXIMPConfigurationItemBase& aSecond )

    {

    if( &aFirst < &aSecond )

        {

        return -1;

        }

    else if( &aFirst == &aSecond )

        {

        return 0;

        }

    else

        {

        return 1;

        }

    }    

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

// CXIMPConfigurationItemBase::CXIMPConfigurationItemBase()

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

//

EXPORT_C CXIMPConfigurationItemBase::CXIMPConfigurationItemBase( MXIMPItemParentBase& aParent )

: CXIMPSubscriptionItemBase( aParent )

    {

    }

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

// CXIMPConfigurationItemBase::BaseConstructL()

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

//

EXPORT_C void CXIMPConfigurationItemBase::BaseConstructL()

    {

    CXIMPSubscriptionItemBase::BaseConstructL();

    }

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

// CXIMPConfigurationItemBase::~CXIMPConfigurationItemBase()

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

//

EXPORT_C CXIMPConfigurationItemBase::~CXIMPConfigurationItemBase()

    {

    iConfigContexts.Close();

    iConfigItems.Close();

    }

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

// CXIMPConfigurationItemBase::ConfigurationStatus()

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

//

EXPORT_C CXIMPConfigurationItemBase::TConfigurationStatus 

           CXIMPConfigurationItemBase::ConfigurationStatus( MXIMPPscContext* aContext )

    {

    // Calculate situation

    TInt count = iConfigContexts.Count() + iConfigItems.Count();

    TBool contextFound = IsContext( aContext );

    if( count == 0 )

        {

        return ENotConfiguredAtAll;

        }

    else if( contextFound )

        {

        if( count == 1 )

            {

            return EConfiguredForCtxOnly;

            }

        return EConfiguredForCtxAndOthers;

        }

    return EConfiguredForOtherCtxOnly;

    }

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

// CXIMPConfigurationItemBase::AddConfiguratorL()

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

//

EXPORT_C void CXIMPConfigurationItemBase::AddConfiguratorL( MXIMPPscContext* aContext )

    {

    TLinearOrder< MXIMPPscContext > order( OrderOfContexts );

    if( IsContext( aContext ) )

        {

        User::Leave( KErrAlreadyExists );

        }    

    iConfigContexts.InsertInOrderL( aContext, order );

    User::LeaveIfError( Open() );

    }

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

// CXIMPConfigurationItemBase::RemoveConfigurator()

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

//

EXPORT_C void CXIMPConfigurationItemBase::RemoveConfigurator( MXIMPPscContext* aContext )

    {

    TLinearOrder< MXIMPPscContext > order( OrderOfContexts );

    TInt index = iConfigContexts.FindInOrder( aContext, order );

    if( index >= 0 )

        {

        iConfigContexts.Remove( index );

        Close();

        }

    else

        {

        iParent.UnregisterExpiringItem( this );

        }

    }

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

// CXIMPConfigurationItemBase::AddConfiguratorL()

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

//

EXPORT_C void CXIMPConfigurationItemBase::AddConfiguratorL( CXIMPConfigurationItemBase* aItem )

    {

    TLinearOrder< CXIMPConfigurationItemBase > order( OrderOfItems );

    TInt index = iConfigItems.FindInOrder( aItem, order );    

    if( index != KErrNotFound )

        {

        return;

        }

    iConfigItems.InsertInOrderL( aItem, order );

    User::LeaveIfError( Open() );

    }

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

// CXIMPConfigurationItemBase::RemoveConfigurator()

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

//

EXPORT_C void CXIMPConfigurationItemBase::RemoveConfigurator( CXIMPConfigurationItemBase* aItem )

    {

    TLinearOrder< CXIMPConfigurationItemBase > order( OrderOfItems );

    TInt index = iConfigItems.FindInOrder( aItem, order );

    if( index >= 0 )

        {

        iConfigItems.Remove( index );

        Close();

        }

    else

        {

        iParent.UnregisterExpiringItem( this );

        }

    }    

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

// CXIMPConfigurationItemBase::IsContext()

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

//

EXPORT_C TBool CXIMPConfigurationItemBase::IsContext( MXIMPPscContext* aContext ) const

    {

    TLinearOrder< MXIMPPscContext > order( OrderOfContexts );    

    return iConfigContexts.FindInOrder( aContext, order ) != KErrNotFound;

    }

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

// CXIMPConfigurationItemBase::ForceClose()

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

//

EXPORT_C void CXIMPConfigurationItemBase::ForceClose()

    {

    CXIMPSubscriptionItemBase::ForceClose();

    TInt count = iConfigContexts.Count();

    for( TInt a = 0; a < count; ++a )

        {

        // RemoveSubscriber removes first one every time.

        RemoveConfigurator( iConfigContexts[ 0 ] );

        }

    count = iConfigItems.Count();

    for( TInt a = 0; a < count; ++a )

        {

        RemoveConfigurator( iConfigItems[ 0 ] );

        }

    }    

// End of file