/*

* 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: Implementation of CPhoneQwertyHandler class.

*

*/

// INCLUDE FILES

#include    "cphoneqwertyhandler.h"

#include    "cphonelangsettingmonitor.h"

#include    "cphoneqwertymodemonitor.h"

#include    <PtiEngine.h>

#include    <w32std.h>

// CONSTANTS

// FORWARD DECLARATIONS

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

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

// CPhoneQwertyHandler::CPhoneQwertyHandler

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

// might leave.

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

//

CPhoneQwertyHandler::CPhoneQwertyHandler()

    {

    }

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

// CPhoneQwertyHandler::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CPhoneQwertyHandler::ConstructL()

    {

    // Language setting monitor

    iLangSettingMonitor = CPhoneLangSettingMonitor::NewL();

    iLangSettingMonitor->AddObserverL( *this );

    // Qwerty mode

    iQwertyModeMonitor = CPhoneQwertyModeMonitor::NewL();

    iQwertyModeMonitor->AddObserverL( *this );

    // Read current values

    iInputLanguageId = iLangSettingMonitor->InputLanguage();

    iQwertyMode = iQwertyModeMonitor->QwertyMode();

    if ( iQwertyMode )

        {

        LoadNumericKeyBindings( iInputLanguageId, iQwertyModeMonitor->Keyboard() );            

        }

    }

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

// CPhoneQwertyHandler::NewL

// Two-phased constructor.

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

//

EXPORT_C CPhoneQwertyHandler* CPhoneQwertyHandler::NewL()

    {

    CPhoneQwertyHandler* self = 

        new (ELeave) CPhoneQwertyHandler();

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

// Destructor

EXPORT_C CPhoneQwertyHandler::~CPhoneQwertyHandler()

    {

	iLangSettingMonitor->RemoveObserver( *this );

    delete iLangSettingMonitor;

    iLangSettingMonitor = NULL;

    iQwertyModeMonitor->RemoveObserver( *this );

    delete iQwertyModeMonitor;

    iQwertyModeMonitor = NULL;

    iNumericKeys.Close();

    }

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

// CPhoneQwertyHandler::IsQwertyInput

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

//    

EXPORT_C TBool CPhoneQwertyHandler::IsQwertyInput() const

    {

    return iQwertyMode > 0 ? ETrue : EFalse;    

    }

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

// CPhoneQwertyHandler::HandleLanguageSettingChange

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

//    

void CPhoneQwertyHandler::HandleInputLanguageSettingChange( TInt aLanguage )

    {

    iInputLanguageId = aLanguage;

    if ( iQwertyMode )

        {

        LoadNumericKeyBindings( iInputLanguageId, iQwertyModeMonitor->Keyboard() );

        }

    }

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

// CPhoneQwertyHandler::HandleQwertyModeChange

// Loads keybinding with keyboard EPtiKeyboardNone if no keyboeard has been   

// defined

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

//    

void CPhoneQwertyHandler::HandleQwertyModeChange( TInt aMode )

    {

    iQwertyMode = aMode;

#ifndef RD_INTELLIGENT_TEXT_INPUT    

    if ( iQwertyMode && !iNumericKeys.Count() )

        {

        LoadNumericKeyBindings( iInputLanguageId, iQwertyModeMonitor->Keyboard() );            

        }

#endif    

    }

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

// CPhoneQwertyHandler::HandleKeyboardLayoutChange

// This event comes after HandleQwertyModeChange

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

//

void CPhoneQwertyHandler::HandleKeyboardLayoutChange()

    {

    LoadNumericKeyBindings( iInputLanguageId, iQwertyModeMonitor->Keyboard() );            

    }

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

// CPhoneQwertyHandler::LoadNumericKeyBindings

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

//    

void CPhoneQwertyHandler::LoadNumericKeyBindings( TInt aLanguage, TInt aKeyboard )

    {

    iNumericKeys.Reset();

#ifdef RD_INTELLIGENT_TEXT_INPUT    

    TPtiKeyboardType keyboard = static_cast<TPtiKeyboardType>( aKeyboard );

    TRAPD( err, 

        {

        CPtiEngine* ptiEngine = CPtiEngine::NewL();

        CleanupStack::PushL( ptiEngine );

        ptiEngine->GetNumericModeKeysForQwertyL( aLanguage, 

                                                 iNumericKeys,

                                                 keyboard );         

        CleanupStack::PopAndDestroy( ptiEngine );                                                 

        } ); // TRAP

#else

    TRAPD( err, 

        {

        CPtiEngine* ptiEngine = CPtiEngine::NewL();

        CleanupStack::PushL( ptiEngine );

        ptiEngine->GetNumericModeKeysForQwertyL( aLanguage, 

                                                 iNumericKeys );         

        CleanupStack::PopAndDestroy( ptiEngine );                                                 

        } ); // TRAP

#endif    

    if ( err )        

        {

        iNumericKeys.Reset();

        iQwertyMode = 0; // To default mode

        }

    else

        {

        // remove keys that are not remapped

        TInt numericKeysCount = iNumericKeys.Count();

        while ( numericKeysCount-- )

            {

            TPtiNumericKeyBinding numKeyBind = iNumericKeys[numericKeysCount];

            // This is PTI bug? Should not be in numeric keys list.

            if ( numKeyBind.iKey == EPtiKeyQwertySpace ) 

                 {

                 iNumericKeys.Remove( numericKeysCount );                    

                 }

            }    

        }

    }

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

// CPhoneQwertyHandler::NumericKeyCode

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

//    

EXPORT_C TInt CPhoneQwertyHandler::NumericKeyCode( const TKeyEvent& aKeyEvent )

    {

    // Check shift state

    TBool shiftActive(EFalse);

    shiftActive = aKeyEvent.iModifiers & EModifierLeftShift ||

                  aKeyEvent.iModifiers & EModifierRightShift; //||

    TInt numericKeysCount = iNumericKeys.Count();

    while ( numericKeysCount-- )

        {

        TPtiNumericKeyBinding numKeyBind = iNumericKeys[numericKeysCount];

        TBool shiftRequired = ( numKeyBind.iCase ==EPtiCaseUpper ) ||

                              ( numKeyBind.iCase ==EPtiCaseChrUpper );

        if ( numKeyBind.iKey == aKeyEvent.iScanCode &&

             (shiftRequired == shiftActive  )   )

            {

            return numKeyBind.iChar;

            }

        }

    return EKeyNull;         

    }           

//  End of File