/*

* 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:  Implementation of the CTelDMCallStateListener class.

*

*/

// INCLUDE FILES

#include    "cteldmcallstatelistener.h"

#include    "mteldmcallstateobserver.h"

#include    "mteldmaccessory.h"

#include    <ctsydomainpskeys.h>

// MODULE DATA STRUCTURES

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

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

// CTelDMCallStateListener::NewL

// 

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

//  

CTelDMCallStateListener* CTelDMCallStateListener::NewL() 

    {

    CTelDMCallStateListener* self =

        new ( ELeave ) CTelDMCallStateListener;

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// CTelDMCallStateListener::CTelDMCallStateListener

// 

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

//

CTelDMCallStateListener::CTelDMCallStateListener():

CActive( CActive::EPriorityStandard )

    {

    CActiveScheduler::Add( this );

    }

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

// CTelDMCallStateListener::~CTelDMCallStateListener

// 

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

//

CTelDMCallStateListener::~CTelDMCallStateListener()

    {

    Cancel();

    iProperty.Close();

    iObserverArray.Reset();

    iObserverArray.Close();

    }

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

// CTelDMCallStateListener::ConstructL

// 

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

//    

void CTelDMCallStateListener::ConstructL()

    {

    /// Attach to key. Start listening call state changes.

    iProperty.Attach( KPSUidCtsyCallInformation, KCTsyCallState );

    IssueRequest();                               

    }

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

// CTelDMCallStateListener::HandleChange

// 

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

//

void CTelDMCallStateListener::HandleChange()

    {

    TInt err( KErrNone );

    iCallState = KErrNone;

    err = RProperty::Get( KPSUidCtsyCallInformation, 

                            KCTsyCallState,

                            iCallState );

    if ( err == KErrNone )

        {                   

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

            {

            TRAP_IGNORE( iObserverArray[ i ]->CallStateChangedL(iCallState) );

            }

        }

    } 

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

// CTelDMCallStateListener::RunL

// Cannot leave, no RunError implementation

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

//

void CTelDMCallStateListener::RunL()

    { 

    if ( iStatus.Int() == KErrNone )

        {

        HandleChange();    

        }

    IssueRequest();

    }

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

// CTelDMCallStateListener::DoCancel

// 

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

//

void CTelDMCallStateListener::DoCancel()

    {

    iProperty.Cancel();

    }

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

// CTelDMCallStateListener::IssueRequest

// 

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

//

void CTelDMCallStateListener::IssueRequest()

    {

    if ( !IsActive() )

        {        

        iProperty.Subscribe( iStatus );

        SetActive();

        }

    }

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

// CTelDMCallStateListener::AddObserver

// 

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

void CTelDMCallStateListener::AddObserverL( MTelDMCallStateObserver& 

                                                            aCallStateObserver )

    {

    if ( iObserverArray.Find( &aCallStateObserver ) != KErrNone )

        {

        User::LeaveIfError( iObserverArray.Append( &aCallStateObserver ) );

        }

    }

// End of File