/*

* 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:  Base class for states

*

*/

// INCLUDE FILES

#include    "CVtEngStateClearing.h"

#include    <cvtlogger.h>

#include    "CVtEngOperation.h"

#include    "CVtEngSettings.h"

#include    "VtEngUtils.h"

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

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

// CVtEngStateClearing::CVtEngStateClearing

// C++ constructor can NOT contain any code, that

// might leave.

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

//

CVtEngStateClearing::CVtEngStateClearing( 

    CVtEngStateManager& aStateManager,

    CVtEngEventManager& aEventManager )

    : CVtEngStateBase( aStateManager, aEventManager )

    {

    }

// Destructor

CVtEngStateClearing::~CVtEngStateClearing()

    {

    __VTPRINT( DEBUG_DESTRUCT, "~StateClr")

    }

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

// CVtEngStateClearing::UpdateL

// Updates state.

// 

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

//

void CVtEngStateClearing::UpdateL()

    {

    __VTPRINTENTER( "StateClr.Update" )

    const MVtCtlCallControl::TVtCtlState bearerstate = 

        SessionHandler().RealState();

    const MVtProtocolCommand::TVtProtocolState protostate( MediaHandler().ProtoState() );

    __VTPRINT2( DEBUG_GEN, "StateClr.bearerState=%d", bearerstate )

    __VTPRINT2( DEBUG_GEN, "StateClr.protoState=%d", protostate )

    if ( bearerstate == MVtCtlCallControl::EIdle ||

         bearerstate == MVtCtlCallControl::EDisconnecting ||

         bearerstate == MVtCtlCallControl::EUnknown ||

         protostate == MVtProtocolCommand::EIdle || 

         protostate == MVtProtocolCommand::ESetup )

        {

        CVtEngStateBase* idleState = NewStateL( MVtEngSessionInfo::EIdle );

        idleState->OpenL( this );

        }

    __VTPRINTEXIT( "StateClr.Update" )

    }

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

// CVtEngStateClearing::OpenL

// State transition to clearing state.

// 

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

//

void CVtEngStateClearing::DoOpenL()

    {

    __VTPRINTENTER( "StateClr.Open")

    // Do disconnect on Protocol, it is possible that disconnect is already

    // ongoing and we get error and that's fine.

    TInt err( MediaHandler().Disconnect() );

    if ( err != KErrNone && err != KErrAlreadyExists )

        {

        __VTPRINT2( DEBUG_GEN, "StateClr.OpenL disconnect fail=%d", err)

        }

    // Reset settings

    CVtEngSettings& settings = CVtEngUtility::Settings();

    settings.ResetAll();

    NotifyStateChange( MVtEngSessionInfo::EClearing );

    __VTPRINTEXIT( "StateClr.Open")

    }

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

// CVtEngStateClearing::ValidateCommand

// Returns if a command is valid in idle state.

// 

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

//

TBool CVtEngStateClearing::ValidateCommand(

            const TVtEngCommandId aCommandId )

    {

    TBool okToPerform( EFalse );

    switch ( aCommandId )

        {

        case KVtEngTerminateSession:

            break;

        default:

            okToPerform = CVtEngStateBase::ValidateCommand( aCommandId );

            break;

        }

    return okToPerform;

    }

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

// CVtEngStateClearing::State

// Returns session state.

// 

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

//

MVtEngSessionInfo::TSessionState CVtEngStateClearing::State() const

    {

    return MVtEngSessionInfo::EClearing;

    }

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

// CVtEngStateClearing::HandleL

// Handles an operation when behavior is state dependent.

// 

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

//

TBool CVtEngStateClearing::HandleL( CVtEngOperation& aOp )

    {

    TBool handled( CVtEngStateBase::HandleL( aOp ));

    return handled;

    }

// End of File