/*

* Copyright (c) 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 responsible for application exit.

*

*/

#include "cvtuiappshutter.h"

#include "mvtuishutterobserver.h"

#include "mvtuistatecontext.h"

#include "mvtuinumbersource.h"

#include "tvtuilocalvariation.h"

#include <cvtlogger.h>

#include <eikenv.h>

#include <aknnotewrappers.h>

// singleton instance

static CVtUiAppShutter* iAppShutter = NULL;

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

// CVtUiAppShutter::InstanceL

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

//

CVtUiAppShutter* CVtUiAppShutter::InstanceL(

    MVtUiShutterObserver& aObserver )

    {

    __VTPRINTENTER( "CVtUiAppShutter.InstanceL" )

    if ( iAppShutter == NULL )

        {

        iAppShutter = new ( ELeave )

            CVtUiAppShutter( aObserver );

        }

    __VTPRINTEXIT( "CVtUiAppShutter.InstanceL" )

    return iAppShutter;

    }

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

// CVtUiAppShutter::CVtUiAppShutter

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

//

CVtUiAppShutter::CVtUiAppShutter(

    MVtUiShutterObserver& aObserver ) :

    iPendingStateFlags( 0 ),

    iObserver( aObserver )

    {

    iPendingStateFlags.Set( EShutterWaitingStart );

    }

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

// CVtUiAppShutter::~CVtUiAppShutter

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

//

CVtUiAppShutter::~CVtUiAppShutter()

    {

    __VTPRINTENTER( "CVtUiAppShutter.~" )

    // mark singleton null

    iAppShutter = NULL;

    delete iCallback;

    __VTPRINTEXIT( "CVtUiAppShutter.~" )

    }

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

// CVtUiAppShutter::StartShutdown

// Called when application may exit, i.e TVtUiStateResetting state receives

// ShutdownDoneL message.

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

//

void CVtUiAppShutter::StartShutdown()

    {

    __VTPRINTENTER( "CVtUiAppShutter.StartShutdown" )

    iPendingStateFlags.Clear( EShutterWaitingStart );

    ShutdownIfReadyAndDestroy();

    __VTPRINTEXITR( "CVtUiAppShutter.StartShutdown flags %d",

        iPendingStateFlags.Value() )

    }

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

// CVtUiAppShutter::ShutdownWithEmergencyCallL

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

//

void CVtUiAppShutter::ShutdownWithEmergencyCallL(

    MVtUiStateContext& aStateContext )

    {

    // Leaves if other than emergency number is supplied...

    CEmergencyCaller* emergency = CEmergencyCaller::DialEmergencyL( *this,

        aStateContext );

    // therefore the flag and member variable must not be set before above call.

    iPendingStateFlags.Set( EShutterWaitingEmergencyCallback );

    iEmergencyCaller = emergency;

    }

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

// CVtUiAppShutter::EmergencyCallDoneL

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

//

void CVtUiAppShutter::EmergencyCallDoneL()

    {

    // Destruction of emergency handler is done asynchrounously to avoid

    // problems that might

    iPendingStateFlags.Clear( EShutterWaitingEmergencyCallback );

    TCallBack cb( EmergencyResponseCallback, this );

    EnqueCallbackL( cb );

    }

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

// CVtUiAppShutter::EmergencyResponseCallback

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

//

TInt CVtUiAppShutter::EmergencyResponseCallback( TAny* aAny )

    {

    CVtUiAppShutter* shutter =

        reinterpret_cast<CVtUiAppShutter*>( aAny );

    // delete callback

    delete shutter->iCallback;

    shutter->iCallback = NULL;

    // delete emergency caller

    delete shutter->iEmergencyCaller;

    shutter->iEmergencyCaller = NULL;

    shutter->ShutdownIfReadyAndDestroy();

    return KErrNone;

    }

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

// CVtUiAppShutter::EnqueCallbackL

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

//

void CVtUiAppShutter::EnqueCallbackL( TCallBack& aCallback )

    {

    __VTPRINTENTER( "CVtUiAppShutter.EnqueAsyncCommsCommandL" )

    if ( !iCallback )

        {

        iCallback = new ( ELeave ) CAsyncCallBack( aCallback, EPriorityHigh );

        }

    iCallback->Call();

    __VTPRINTEXIT( "CVtUiAppShutter.EnqueAsyncCommsCommandL" )

    __VTPRINTEXIT( "CVtUiAppShutter.EnqueCallbackL" )

    }

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

// CVtUiAppShutter::ShutdownIfReadyAndDestroy

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

//

void CVtUiAppShutter::ShutdownIfReadyAndDestroy()

    {

    __VTPRINTENTER( "CVtUiAppShutter.ShutdownIfReadyAndDestroy" )

    __VTPRINT2( DEBUG_GEN, "  shutter flags %d",

        iPendingStateFlags.Value() );

    if ( !iPendingStateFlags.Value() )

        {

        iObserver.HandleShutdownReady();

        delete this;

        }

    __VTPRINTEXIT( "CVtUiAppShutter.ShutdownIfReadyAndDestroy" )

    }

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

// CVtUiAppShutter::CEmergencyCaller::DialEmergencyL

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

//

CVtUiAppShutter::CEmergencyCaller* CVtUiAppShutter::CEmergencyCaller::

    DialEmergencyL(

    CVtUiAppShutter& aObserver,

    MVtUiStateContext& aStateContext )

    {

    __VTPRINTENTER( "CEmergencyCaller.DialEmergencyL" )

    CVtUiAppShutter::CEmergencyCaller* self = new ( ELeave )

        CVtUiAppShutter::CEmergencyCaller( aObserver, aStateContext );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    __VTPRINTEXIT( "CEmergencyCaller.DialEmergencyL" )

    return self;

    }

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

// CVtUiAppShutter::CEmergencyCaller::ConstructL

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

//

void CVtUiAppShutter::CEmergencyCaller::ConstructL()

    {

    __VTPRINTENTER( "CEmergencyCaller.ConstructL" )

    const MVtUiNumberSource* source = iStateContext.NumberSource();

    if ( source )

        {

        source->GetContents( iNumber );

        AknTextUtils::ConvertDigitsTo( iNumber, EDigitTypeWestern );

        User::LeaveIfError( iServer.Connect() );

    	iEmergency = CPhCltEmergencyCall::NewL( this );

        TBool isEmergenyNumber = EFalse;

        const TInt err =

        	iEmergency->FindEmergencyPhoneNumber( iNumber, isEmergenyNumber );

        if ( err == KErrNone && isEmergenyNumber )

            {

            __VTPRINT( DEBUG_GEN, "iEmergency->DialEmergencyCallL")

            iEmergency->DialEmergencyCallL( iNumber );

            }

        if ( !isEmergenyNumber || err )

            {

            __VTPRINT( DEBUG_GEN, "  not EC number => leave" )

            // Not an emergency call number. Abort emergency call process.

            User::Leave( KErrArgument );

            }

        }

    __VTPRINTEXIT( "CEmergencyCaller.ConstructL" )

    }

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

// CVtUiAppShutter::CEmergencyCaller::CEmergencyCaller

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

//

CVtUiAppShutter::CEmergencyCaller::CEmergencyCaller(

    CVtUiAppShutter& aObserver,

    MVtUiStateContext& aStateContext ) :

    iObserver( aObserver ),

    iStateContext( aStateContext )

    {

    }

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

// CVtUiAppShutter::CEmergencyCaller::~CEmergencyCaller

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

//

CVtUiAppShutter::CEmergencyCaller::~CEmergencyCaller()

    {

    __VTPRINTENTER( "CEmergencyCaller.~" )

    delete iEmergency;

    iServer.Close();

    __VTPRINTEXIT( "CEmergencyCaller.~" )

    }

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

// CVtUiAppShutter::CEmergencyCaller::HandleEmergencyDialL

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

//

void CVtUiAppShutter::CEmergencyCaller::HandleEmergencyDialL(

    const TInt )

    {

    __VTPRINTENTER( "CEmergencyCaller.HandleEmergencyDialL" )

    iObserver.EmergencyCallDoneL();

    __VTPRINTEXIT( "CEmergencyCaller.HandleEmergencyDialL" )

    }