/*

* 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 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:    Class to handle subscriptions from PS*

*/

#include "videochpssubscriber.h"

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

// CVcxNsCHPSSubscriber::CVcxConnUtilSubscriber()

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

//

CVcxNsCHPSSubscriber::CVcxNsCHPSSubscriber( const TUid aUid, 

                                            const TUint32 aKey, 

                                            RProperty::TType aType,

                                            MCHPSObserver* aObserver ) :

    CActive( EPriorityStandard ), 

    iUid( aUid ),

    iKey( aKey ), 

    iKeyType(aType),

    iObserver( aObserver )

    {

        // NOP

    }

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

// CVcxNsCHPSSubscriber::NewL()

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

//

CVcxNsCHPSSubscriber* CVcxNsCHPSSubscriber::NewL( const TUid aUid, 

                                                  const TUint32 aKey,

                                                  RProperty::TType aType, 

                                                  MCHPSObserver* aObserver )

    {

    if( aType != RProperty::EInt )

        {

        User::Leave( KErrNotSupported );

        }

    CVcxNsCHPSSubscriber* self =

                      new( ELeave ) CVcxNsCHPSSubscriber( aUid, aKey, aType, aObserver );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CVcxNsCHPSSubscriber::ConstructL()

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

//

void CVcxNsCHPSSubscriber::ConstructL()

    {

    iInitialized = EFalse;

    User::LeaveIfError( iProperty.Attach( iUid, iKey ) );

    CActiveScheduler::Add( this );    

    }

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

// CVcxNsCHPSSubscriber::~CVcxNsCHPSSubscriber()

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

//

CVcxNsCHPSSubscriber::~CVcxNsCHPSSubscriber()

    {

    if( IsActive() )

        {

        Cancel();

        }

    iProperty.Close();

    }

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

// CVcxNsCHPSSubscriber::Get()

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

//

TInt CVcxNsCHPSSubscriber::Get( TInt& aValue )

    {

    return iProperty.Get( aValue );

    }

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

// CVcxNsCHPSSubscriber::Start()

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

//

void CVcxNsCHPSSubscriber::Start()

    {

    if( !IsActive() )

        {

        iProperty.Subscribe( iStatus );

        SetActive();

        iInitialized = ETrue;

        }

    }

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

// CVcxNsCHPSSubscriber::DoCancel()

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

//

void CVcxNsCHPSSubscriber::DoCancel()

    {

    if( IsActive() )

        {

        iProperty.Cancel();

        }

    iInitialized = EFalse;

    }

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

// CVcxNsCHPSSubscriber::RunL()

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

//

void CVcxNsCHPSSubscriber::RunL()

    {

    // resubscribe before processing new 

    // value to prevent missing updates

    iProperty.Subscribe( iStatus );

    SetActive();

    if( iInitialized )

        {

        TInt intValue;

        if(iKeyType == RProperty::EInt )

            {

            if( iProperty.Get( intValue ) == KErrNone && iObserver )

                {

                iObserver->ValueChanged( iKey, intValue );

                }

            }       

        }

    iInitialized = ETrue;

  }

// end of file