/*

* Copyright (c) 2005-2007 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:   class to watch call monitor event properties

*

*/

#include "musavacalleventmonitor.h"

#include "muslogger.h"

#include "mussesseioninformationapi.h"

#include "musresourceproperties.h"

#include "muscallmonitorobserver.h"

#include <e32property.h>

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

// Two phase constructor NewL()

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

//

CMusAvaCallEventMonitor* CMusAvaCallEventMonitor::NewL(

    MMusCallMonitorObserver& aObserver )

    {

    MUS_LOG( "mus: [MUSAOP]  -> CMusAvaCallEventMonitor::NewL" )

    CMusAvaCallEventMonitor* self = 

        new (ELeave) CMusAvaCallEventMonitor( aObserver );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    MUS_LOG( "mus: [MUSAOP]  <- CMusAvaCallEventMonitor::NewL" )

    return self;

    }

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

// Destructor

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

//

CMusAvaCallEventMonitor::~CMusAvaCallEventMonitor()

    {

    MUS_LOG( "-> CMusAvaCallEventMonitor::~CMusAoPlugin" )

    MUS_LOG( "<- CMusAvaCallEventMonitor::~CMusAoPlugin" )

    }

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

// Constructor 

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

//

CMusAvaCallEventMonitor::CMusAvaCallEventMonitor( 

    MMusCallMonitorObserver& aObserver )

    :CActive( EPriorityNormal ),

    iObserver( aObserver )

    {

    }

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

// Two phase constructor ConstructL()

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

//

void CMusAvaCallEventMonitor::ConstructL()

    {

    MUS_LOG( "mus: [MUSAOP]  -> CMusAvaCallEventMonitor::ConstructL" )

    CActiveScheduler::Add( this );

    MUS_LOG( "mus: [MUSAOP]  <- CMusAvaCallEventMonitor::ConstructL" )

    }

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

// Returns the status of the call

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

//

TInt CMusAvaCallEventMonitor::CallStatusL()

    {

    MUS_LOG( "mus: [CMusAvaCallEventMonitor]  -> CMusAvaCallEventMonitor::\

        CallStatusL" )    

    TInt callStatus;

    User::LeaveIfError( RProperty::Get(

        NMusSessionInformationApi::KCategoryUid,

        NMusSessionInformationApi::KMusCallEvent,

        callStatus ) );

    MUS_LOG1( "mus: [CMusAvaCallEventMonitor]     Call Event = %d ", 

        callStatus )    

    MUS_LOG( "mus: [CMusAvaCallEventMonitor]  <- CMusAvaCallEventMonitor::\

        CallStatusL" )    

    return callStatus;

    }

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

// Returns the direction of connected call.

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

//

TInt CMusAvaCallEventMonitor::CallDirectionL()

    {

    MUS_LOG( "mus: [CMusAvaCallEventMonitor]  -> CMusAvaCallEventMonitor::\

        CallDirectionL" )

    // retrieve call count

    TInt direction( 0 );

    User::LeaveIfError( RProperty::Get(

        NMusSessionInformationApi::KCategoryUid,

        NMusSessionInformationApi::KMusCallDirection,

        direction ) );

    MUS_LOG1( "mus: [CMusAvaCallEventMonitor]     Call Direction = %d ", 

        direction )

    MUS_LOG( "mus: [CMusAvaCallEventMonitor]  <- CMusAvaCallEventMonitor::\

        CallDirectionL" )

    return direction;

    }

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

// aTelNumber will be filled with telephone number or SIP URI of current

// connected call

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

//

void

CMusAvaCallEventMonitor::GetTelNumberL( TDes& aTelNumber, TBool& aIsSipUri )

    {

    MUS_LOG( "mus: [CMusAvaCallEventMonitor]  -> CMusAvaCallEventMonitor::\

        GetTelNumberL" )

    TInt error = RProperty::Get( NMusSessionInformationApi::KCategoryUid,

                                 NMusSessionInformationApi::KMusTelNumber,

                                 aTelNumber );

    MUS_LOG1( "mus: [CMusAvaCallEventMonitor]  CMusAvaCallEventMonitor::\

        GetTelNumberL (%d)", error )

    if ( error == KErrOverflow )

        {

        MUS_LOG1( "mus: [CMusAvaCallEventMonitor]  CMusAvaCallEventMonitor::\

            GetTelNumberL - Buffer too small (%d), leave", 

            aTelNumber.MaxLength() )

        User::Leave( error );

        }

    User::LeaveIfError( error );

    aIsSipUri = IsSipUri( aTelNumber );

    MUS_LOG1( "mus: [CMusAvaCallEventMonitor]  CMusAvaCallEventMonitor::\

          GetTelNumberL (is SIP URI=%d)", aIsSipUri )

    MUS_LOG( "mus: [CMusAvaCallEventMonitor]  <- CMusAvaCallEventMonitor::\

        GetTelNumberL" )

    }

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

// Subscribe to the property, means start monitoring the property

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

//

void CMusAvaCallEventMonitor::StartMonitoringL()

    {

    MUS_LOG( "mus: [CMusAvaCallEventMonitor]  -> CMusAvaCallEventMonitor::\

        StartMonitoringL" )

    if ( !IsActive() )

        {

        MUS_LOG( "mus: [CMusAvaCallEventMonitor]   CMusAvaCallEventMonitor::\

            StartMonitoringL - Not active, starting" )

        User::LeaveIfError( iPropertyEvent.Attach(

            NMusSessionInformationApi::KCategoryUid,

            NMusSessionInformationApi::KMusCallEvent ) );

        // initial subscription and process current property value

        iPropertyEvent.Subscribe( iStatus );

        SetActive();

        }

    MUS_LOG( "mus: [CMusAvaCallEventMonitor]  <- CMusAvaCallEventMonitor::\

        StartMonitoringL" )

    }

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

// Called by Cancel()

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

//

void CMusAvaCallEventMonitor::DoCancel()

    {

    iPropertyEvent.Cancel();

    iPropertyEvent.Close();

    }

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

// Active Object RunL implementation. Will be called when property changes.

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

//

void CMusAvaCallEventMonitor::RunL()

    {

    MUS_LOG( "mus: [MUSAOP]  -> CMusAvaCallEventMonitor::RunL" )

    // resubscribe before processing new value to prevent missing updates

    iPropertyEvent.Subscribe( iStatus );

    SetActive();

    // property updated, get new value

    TInt callStatus;

    if ( iPropertyEvent.Get( callStatus ) == KErrNotFound )

        {

        // property deleted

        iObserver.NoActiveCallL();

        }

    else

        {

        switch( callStatus )

            {

            case NMusSessionInformationApi::ENoCall:

                {

                iObserver.NoActiveCallL();

                break;

                }

            case NMusSessionInformationApi::ECallConnected:

                {

                TBuf<KMusTelNumberMaxLength> telNumber;

                TBool isSipUri( EFalse );

                GetTelNumberL( telNumber, isSipUri );

                iObserver.CallConnectedL( telNumber, isSipUri );

                break;

                }

            case NMusSessionInformationApi::ECallHold:

                {

                TBuf<KMusTelNumberMaxLength> telNumber;

                TBool isSipUri( EFalse );

                GetTelNumberL( telNumber, isSipUri );

                iObserver.CallHoldL( telNumber, isSipUri );

                break;

                }

            case NMusSessionInformationApi::EConferenceCall:

                {

                iObserver.ConferenceCallL();

                break;

                }

            default:

                {

                iObserver.NoActiveCallL();

                break;

                }

            }

        }

    MUS_LOG( "mus: [MUSAOP]  <- CMusAvaCallEventMonitor::RunL" )

    }

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

// RunL leaves will be handled here. Make sure it returns KErrNone

// Otherwise Active Scheduler Error() will be called.

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

//

TInt CMusAvaCallEventMonitor::RunError( TInt aError )

    {

    MUS_LOG1( "mus: [MUSAOP]  -> CMusAvaCallEventMonitor::RunError(%d)",

        aError )

    // Not much things can be done here as cleanup operation.

    aError = KErrNone;

    MUS_LOG( "mus: [MUSAOP]  <- CMusAvaCallEventMonitor::RunError" )

    return aError;

    }

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

// CMusAvaCallEventMonitor::IsSipUri()

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

//

TBool CMusAvaCallEventMonitor::IsSipUri( const TDesC& aTelNumber ) const

    {

    _LIT( KSipPrefix, "sip:" );

     TPtrC prefix = aTelNumber.Left( KSipPrefix().Length() );

     return prefix.Compare( KSipPrefix ) == 0;

     }