/*

* Copyright (c) 2006 - 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:  Initializing state

*

*/

// INCLUDE FILES

#include    "CVtEngStateInitializing.h"

#include    "CVtEngOperation.h"

#include    "CVtEngSettings.h"

#include    "VtEngUtils.h"

#include    "CVtEngAudioHandler.h"

#include    "CVtEngInitializer.h"

#include    <cvtlogger.h>

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

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

// CVtEngStateInitializing::CVtEngStateInitializing

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

// might leave.

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

//

CVtEngStateInitializing::CVtEngStateInitializing( 

    CVtEngStateManager& aStateManager,

    CVtEngEventManager& aEventManager )

    : CVtEngStateBase( aStateManager, aEventManager )

    {

    }

// Destructor

CVtEngStateInitializing::~CVtEngStateInitializing()

    {

    __VTPRINT( DEBUG_DESTRUCT, "~Stateini")

    }

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

// CVtEngStateInitializing::UpdateL

// Updates state

// (other items were commented in a header).

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

//

void CVtEngStateInitializing::UpdateL()

    {

    __VTPRINTENTER( "StateInit.Update")

    const MVtCtlCallControl::TVtCtlState bearerstate = 

        SessionHandler().RealState();

    CVtEngStateBase* newState = NULL;

    if ( bearerstate == MVtCtlCallControl::EIdle ||

         bearerstate == MVtCtlCallControl::EDisconnecting )

        {

        newState = NewStateL( MVtEngSessionInfo::EClearing );

        // Initializer may be waiting for dataport. In that case MediaHandler 

        // has already signaled reqStatus of CVtEngInitializer which must

        // complete KVtEngInitializeEngine command in order uninitialisation to

        // finish properly. This scenario may happen in 1st call since phone

        // boot, i.e. when dataport name is not already published.

        CVtEngUtility::EngineUtils()->Initializer().CancelInit();

        }

    else if ( bearerstate == MVtCtlCallControl::EAlerting )

        {

        newState = NewStateL( MVtEngSessionInfo::ERemoteAlerting );

        }

    else

        {

        newState = NegotiatingOrConnectedStateL(); // or null

        }

    if ( newState )

        {

        newState->OpenL( this );

        }

    __VTPRINTEXIT( "StateInit.Update")

    }

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

// CVtEngStateInitializing::OpenL

// State transition to initializing.

// (other items were commented in a header).

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

//

void CVtEngStateInitializing::DoOpenL()

    {

    __VTPRINTENTER( "StateInit.Open" )

    NotifyStateChange( MVtEngSessionInfo::EInitializing );

    // Instantiate temporary devsound for audio routing

    AudioHandler().SetRoutingEnablerL( ETrue );

    __VTPRINTEXIT( "StateInit.Open" )

    }

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

// CVtEngStateInitializing::ValidateCommand

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

// 

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

//

TBool CVtEngStateInitializing::ValidateCommand(

            const TVtEngCommandId aCommandId )

    {

    __VTPRINT( DEBUG_DETAIL | DEBUG_GEN, "StateInit.Validate")

    TBool okToPerform( EFalse );

    switch ( aCommandId )

        {

        case KVtEngPrepareViewFinder:        

        case KVtEngPrepareRemoteRenderDSA:

        case KVtEngPrepareRemoteRenderDP:

        case KVtEngPrepareRemoteRenderNGA:

        case KVtEngSetSource:

        case KVtEngStartViewFinder:

            okToPerform = ETrue;

            break;

        default:

            okToPerform = CVtEngStateBase::ValidateCommand( aCommandId );

            break;

        }

    return okToPerform;

    }

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

// CVtEngStateInitializing::State

// Returns session state.

// 

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

//

MVtEngSessionInfo::TSessionState CVtEngStateInitializing::State() const

    {

    return MVtEngSessionInfo::EInitializing;

    }

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

// CVtEngStateInitializing::HandleL

// Handles an operation when behavior is state dependent.

// 

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

//

TBool CVtEngStateInitializing::HandleL( CVtEngOperation& aOp )

    {

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

    if ( !handled )

        {

        switch ( aOp.Command() )

            {

            case KVtEngStartRenderRemote:

                SetVideoEnabled( ETrue );

                handled = ETrue;

                break;

            }

        }

    return handled;

    }

// End of File