/*

* Copyright (c) 2005 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: Implementation of CPhoneStateHandle class.

*

*/

// INCLUDE FILES

#include <pevirtualengine.h>

#include "phoneui.pan"

#include "phoneconstants.h"

#include "cphonestatehandle.h"

#include "mphonestate.h"

#include "phonelogger.h"

#include "cphoneerrormessageshandler.h"

// Constant defines state singleton priority which must be lower

// than KUidNoteControllerSingleton priority(which is default 100) 

// this ensures that NoteControl is destructed before iFactoryLibrary 

// is closed.

const TInt SingletonDestructionPriority(99);

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

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

// CPhoneStateHandle::CPhoneStateHandle

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

// might leave.

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

//

CPhoneStateHandle::CPhoneStateHandle(

    MPhoneViewCommandHandle* aViewCommandHandle) : 

    CCoeStatic( KUidStateHandleSingleton, SingletonDestructionPriority ),

    iViewCommandHandle( aViewCommandHandle )

    {

    }

// Destructor

CPhoneStateHandle::~CPhoneStateHandle()

    {   

    if ( iFactoryLibrary.Handle() )

        {

        delete iPhoneErrorMessagesHandler; 

        delete iPhoneResourceResolver;

        delete iPhoneStateMachine;

        delete iStateMachineFactory;

        iFactoryLibrary.Close();

        }

    }

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

// CPhoneStateHandle::CreateL

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

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

//

CPhoneStateHandle* CPhoneStateHandle::CreateL( 

    MPhoneViewCommandHandle* aViewCommandHandle,

    const TDesC& aFileName, 

    const TUid aFactoryUid )

    {

    CPhoneStateHandle* instance = static_cast<CPhoneStateHandle*>(

        CCoeEnv::Static( KUidStateHandleSingleton ) );

    if ( !instance )

        {

        instance = new( ELeave ) CPhoneStateHandle( aViewCommandHandle );

        CleanupStack::PushL( instance );

        instance->ConstructL( aFileName, aFactoryUid );

        CleanupStack::Pop( instance );

        }

    return instance;

    }

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

// CPhoneStateHandle::InstanceL

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

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

//

EXPORT_C CPhoneStateHandle* CPhoneStateHandle::Instance()

    {

    CPhoneStateHandle* instance = static_cast<CPhoneStateHandle*>(

        CCoeEnv::Static( KUidStateHandleSingleton ) );

    __ASSERT_DEBUG( instance, Panic( EPhoneCtrlSingletonNotInitialized ) );

    return instance;

    }

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

// CPhoneStateHandle::StateMachine

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

//

    {   

    __ASSERT_DEBUG( Instance(), Panic( EPhoneCtrlSingletonNotInitialized ) );

    return iPhoneStateMachine;

    }

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

// CPhoneStateHandle::ViewCommandHandle

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

//

EXPORT_C MPhoneViewCommandHandle* CPhoneStateHandle::ViewCommandHandle()

    {

    return iViewCommandHandle;        

    }

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

// CPhoneStateHandle::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CPhoneStateHandle::ConstructL( 

    const TDesC& aFileName,

    const TUid aFactoryUid )

    {

    TFileName fileName( KDriveZ );

    fileName.Append( KDC_SHARED_LIB_DIR );

    LoadLibraryHandleL( fileName, aFactoryUid );

    }

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

// CPhoneStateHandle::LoadLibraryHandleL

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

void CPhoneStateHandle::LoadLibraryHandleL( 

    const TDesC& aFileName,

    const TUid aFactoryUid )

    {

    TBool factoryFound = EFalse;

    TParse fullentry;

    fullentry.Set( aFileName, NULL, NULL );

    if ( iFactoryLibrary.Load( fullentry.Name(), fullentry.DriveAndPath() ) 

        == KErrNone )

        {

        if ( iFactoryLibrary.Type()[1] == aFactoryUid )

            {

            factoryFound = ETrue;

            }

        else

            {

            iFactoryLibrary.Close();

            }

        }

    // If Factory not found:

    if ( !factoryFound )

        {

        Panic( EPhoneCtrlFactoryLibraryNotFound );

        }

    // Look for the 1st exported function

    iEntry = iFactoryLibrary.Lookup( KPhoneUiStateMachineOrdinal ); 

    // Create the state machine factory

    iStateMachineFactory = (CPhoneUIStateMachineFactoryBase*) iEntry();

    // Create the state machine

    iPhoneStateMachine = iStateMachineFactory->CreatePhoneStateMachineL(

        iViewCommandHandle );

    // Create the phone resource resolver

    iPhoneResourceResolver = 

        iStateMachineFactory->CreatePhoneResourceResolverL();

    // Create the phone error messages handler    

    iPhoneErrorMessagesHandler = 

    }

// End of File