/*

* Copyright (c) 2008 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:  Incoming Call Handler.

*

*/

// System Includes

#include <ctsydomainpskeys.h>

#include <e32property.h>

// User Includes

#include "evtcallhandler.h"

#include "evtdebug.h"

// ================ Member funtions for CEvtCallHandler class ===============

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

// CEvtCallHandler::CEvtCallHandler

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

//

CEvtCallHandler::CEvtCallHandler( MEvtCallObserver& aObserver ): 

									CActive(EPriorityStandard),

									iObserver(aObserver),

    								iCallStatusPkg(iCallStatus)

    {

    }

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

// CEvtCallHandler::~CEvtCallHandler

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

//

CEvtCallHandler::~CEvtCallHandler()

	{

    Cancel();

    if (iTelephony)

        delete iTelephony;

	}

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

// CEvtCallHandler::NewL

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

//

CEvtCallHandler* CEvtCallHandler::NewL( MEvtCallObserver& aObserver )

    {

	CEvtCallHandler* self = NewLC( aObserver );

	CleanupStack::Pop( self );

	return self;

    }

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

// CEvtCallHandler::NewLC

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

//

CEvtCallHandler* CEvtCallHandler::NewLC( MEvtCallObserver& aObserver )

    {

	CEvtCallHandler* self = new ( ELeave )CEvtCallHandler( aObserver );

	CleanupStack::PushL( self );

	self->ConstructL( );

	return self;

    } 

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

// CEvtCallHandler::ConstructL

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

//

void CEvtCallHandler::ConstructL()

    {

    EVTUIDEBUG( "+ CEvtCallHandler::ConstructL()" );

    iTelephony = CTelephony::NewL();

    CActiveScheduler::Add(this);

	StartListening();

    EVTUIDEBUG( "- CEvtCallHandler::ConstructL()" );

    }

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

// CEvtCallHandler::RunL

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

//

void CEvtCallHandler::RunL()

    {

    if (iStatus == KErrNone)

        {

        CTelephony::TCallStatus status = iCallStatus.iStatus;

        switch (status)

            {

            case CTelephony::EStatusRinging:

                {

                // The phone is ringing.

                iObserver.HandleIncomingCallL();

                break;

                }

            default:

                {

                // Not interested in other events.

                break;

                }

            }

        // Start listening for the next call

        StartListening();

        }

    }

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

// CEvtCallHandler::RunError

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

//

TInt CEvtCallHandler::RunError(TInt anError)

    {

    return anError;

    }

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

// CEvtCallHandler::DoCancel

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

//

void CEvtCallHandler::DoCancel()

    {

    iTelephony->CancelAsync(CTelephony::EVoiceLineStatusChangeCancel);

    }

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

// CEvtCallHandler::StartListening

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

//

void CEvtCallHandler::StartListening()

    {

    iTelephony->NotifyChange(iStatus, CTelephony::EVoiceLineStatusChange,

            iCallStatusPkg);

    SetActive();

    }

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

// CEvtCallHandler::IsCallActive

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

//

TBool CEvtCallHandler::IsCallActive( )

	{

    TInt callActiveState = EPSCTsyCallTypeNone;

    // Get current call status from P&S

    const TInt errCode( RProperty::Get(

        KPSUidCtsyCallInformation,

        KCTsyCallType,

        callActiveState ) );

    // Check current call type

    TBool result(

        ( EPSCTsyCallTypeCSVoice == callActiveState ) &&

        ( KErrNone == errCode ) );

    EVTUIDEBUG1( "= CEvtCallHandler::IsCallActive() - %d", result );

    return result;

    }

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

// CEvtCallHandler::IsCallIncoming

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

//

TBool CEvtCallHandler::IsCallIncoming( )

	{

    TInt callActiveState = EPSCTsyCallStateNone;

    // Get current call status from P&S

    const TInt errCode( RProperty::Get(

        KPSUidCtsyCallInformation,

        KCTsyCallState,

        callActiveState ) );

    const TBool callIncoming(

        ( EPSCTsyCallStateAlerting == callActiveState ) ||

        ( EPSCTsyCallStateRinging == callActiveState ) );

    // Check current call status

    TBool result( callIncoming && ( KErrNone == errCode ) );

    EVTUIDEBUG1( "= CEvtCallHandler::IsCallIncoming() - %d", result );

    return result;

    }