/*

* Copyright (c) 2004-2005 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:  Interface for Active object handling Pub&Sub notify events.

*

*/

// INCLUDE FILES

#include    <e32property.h>

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

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

// CSSSettingsActiveObject::CSSSettingsActiveObject

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

//

CSSSettingsActiveObject::CSSSettingsActiveObject(

    const TUid aNotifyUid,

    const TUint32 aNotifyKey,

    MSSSettingsPubSubNotify& aNotifyHandler )

:   CActive( CActive::EPriorityStandard ),

    iNotifyUid ( aNotifyUid ),

    iNotifyKey( aNotifyKey ),

    iNotifyHandler( &aNotifyHandler ),

    iNotify( EFalse )

    {

    CActiveScheduler::Add( this );

    }

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

// CSSSettingsActiveObject::ConstructL

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

//

void CSSSettingsActiveObject::ConstructL()

    {

    TInt err = iProperty.Attach(

        iNotifyUid,

        iNotifyKey );

    User::LeaveIfError( err );

    }

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

// CSSSettingsActiveObject::NewL

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

//

CSSSettingsActiveObject* CSSSettingsActiveObject::NewL(

    const TUid aNotifyUid,

    const TUint32 aNotifyKey,

    MSSSettingsPubSubNotify& aNotifyHandler )

    {

    CSSSettingsActiveObject* self = 

        new ( ELeave ) CSSSettingsActiveObject(

            aNotifyUid,

            aNotifyKey,

            aNotifyHandler );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

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

// CSSSettingsActiveObject::~CSSSettingsActiveObject

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

//

CSSSettingsActiveObject::~CSSSettingsActiveObject()

    {

    Cancel();

    iProperty.Close();

    }

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

// CSSSettingsActiveObject::NotifyKeyChange

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

//

TInt CSSSettingsActiveObject::NotifyKeyChange()

    {

    TInt err(KErrNone);

    if ( iNotify || IsActive() )

        {

        // Notify already active, so return error code.

        err = KErrInUse;

        }

    else

        {

        iProperty.Subscribe( iStatus );

        SetActive();

        iNotify = ETrue;

        }

    return err;

    }

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

// CSSSettingsActiveObject::CancelNotifyCancelNotify

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

//

void CSSSettingsActiveObject::CancelNotify()

    {

    Cancel();

    }

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

// CSSSettingsActiveObject::RunL

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

//

void CSSSettingsActiveObject::RunL()

    {

    TInt err = iStatus.Int();

    if ( err != KErrCancel && !iNotify )

        {

        // Reset the notification.

        iProperty.Subscribe( iStatus );

        SetActive();

        }

    if ( !err )

        {

        if ( iNotifyHandler )

            {

            iNotifyHandler->HandlePubSubNotify(

                iNotifyUid,

                iNotifyKey );

            }

        }

    }

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

// CSSSettingsActiveObject::DoCancel

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

//

void CSSSettingsActiveObject::DoCancel()

    {

    iNotify = EFalse;

    iProperty.Cancel();

    }

//  End of File