/*

* Copyright (c) 2005-2007 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:  Numeric key forwarding handler implementation for Active Idle 

*                WS Plug-in.

*

*/

#include "numerickeyhandler.h"

#include "uistate.h"

#include <e32property.h>

#include <centralrepository.h>

#include <w32adll.h>

#include <PtiEngine.h>

#include <activeidle2domainpskeys.h>

#include <AvkonInternalCRKeys.h>

#include <AknFepInternalCRKeys.h>

#include <aiutility.h>

#include <aipspropertyobserver.h>

namespace AiWsPlugin {

CNumericKeyHandler::CNumericKeyHandler

        ( TInt aTargetWgId, MAnimGeneralFunctionsWindowExtension* aWindowExt ) :

    iTargetWgId( aTargetWgId ), 

    iWindowExt( aWindowExt )

    {

    }

void CNumericKeyHandler::ConstructL()

    {

    // Read capability: ReadUserData.

    _LIT_SECURITY_POLICY_C1( KReadUserPolicy, ECapabilityReadUserData ); 

    // Write capability: WriteDeviceData.

    _LIT_SECURITY_POLICY_C1( KWriteDevicePolicy, ECapabilityWriteDeviceData );

    RProperty::Define( 

         	KPSUidAiInformation,

         	KActiveIdleState,

         	RProperty::EInt,

            KReadUserPolicy,

            KWriteDevicePolicy );

	iQwertyObserver = AiUtility::CreatePSPropertyObserverL(

			TCallBack( HandleQwertyModeChanged, this ),

        	KCRUidAvkon, KAknQwertyInputModeActive );

	iInputLanguageRepository = CRepository::NewL( KCRUidAknFep );

	iInputLanguageObserver = CCenRepNotifyHandler::NewL(*this, *iInputLanguageRepository);

	iInputLanguageObserver->StartListeningL(); 

	RProperty::Get(KCRUidAvkon, KAknQwertyInputModeActive, iQwertyMode);

	iInputLanguageRepository->Get( KAknFepInputTxtLang, iInputLanguage );

    // Load numeric keys mapping for qwerty 

    if ( iQwertyMode )

        {

        LoadInputLanguageKeyBindings( iInputLanguage );            

        }

    }

CNumericKeyHandler* CNumericKeyHandler::NewLC

        ( TInt aTargetWgId, MAnimGeneralFunctionsWindowExtension* aWindowExt )

    {

    CNumericKeyHandler* self = new(ELeave) CNumericKeyHandler

        ( aTargetWgId, aWindowExt );

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

CNumericKeyHandler::~CNumericKeyHandler()

    {

    if( iInputLanguageObserver )

        {

        iInputLanguageObserver->StopListening();

        }

    delete iInputLanguageObserver;

    delete iInputLanguageRepository;

    Release(iQwertyObserver);

    iNumericKeys.Close();

    }

void CNumericKeyHandler::SetUiStateQuery( MUiState& aUiState )

    {

    iUiState = &aUiState;

    }

void CNumericKeyHandler::FocusChanged( TBool /*aState*/ )

    {

    }

TBool CNumericKeyHandler::OfferRawEvent(const TRawEvent& aRawEvent)

    {

    switch( aRawEvent.Type() )

        {

        case TRawEvent::EKeyDown:

            {

            if ( iUiState->HasFocus() && CheckPostToTarget( aRawEvent ) )

                {

                TInt forwardKeys = EPSAiForwardNumericKeysToPhone;       

                TInt err = RProperty::Get(

                        KPSUidAiInformation,

                        KActiveIdleForwardNumericKeysToPhone,

                        forwardKeys);

                // Key event forwarding disabled => Ignore the keys

                if ( err == KErrNone && 

                        forwardKeys == EPSAiDontForwardNumericKeysToPhone )

                    {

                    return EFalse;

                    }

    			// Phone app is listening this key and knows that next

                // focus event from window server is becuase key events

                // are coming to it.                        

                RProperty::Set(

                 	KPSUidAiInformation, 

                    KActiveIdleState,

                	EPSAiNumberEntry );

                // Switch focus to Phone app

                if( iWindowExt )

                    {

                    iWindowExt->SetOrdinalPosition( iTargetWgId, 0, 0 );

                    }

                }

            break;

            }

        }

    // Never consume the key event as we want target application to process it

    return EFalse;

    }

/**

 * Returns true if event should be forwarded to Phone app.

 */

TBool CNumericKeyHandler::CheckPostToTarget(const TRawEvent& aRawEvent ) const

    {

    const TInt scanCode = aRawEvent.ScanCode();

    if ( iQwertyMode ) 

        {

        // Don't pass the check if shift is pressed.

		const TUint modifiers = iUiState->Modifiers();

        if(( modifiers & EModifierShift ) == 0 )

            {

            TInt numericKeysCount = iNumericKeys.Count();

            while( numericKeysCount-- )

                {

                TPtiNumericKeyBinding numKeyBind = iNumericKeys[numericKeysCount];

                if( numKeyBind.iKey == scanCode )

                    {

                    return ETrue;

                    }

                }

            }

        }

    else

        {

        // Normal check ignore modifiers

        static const TInt KIdPlgScanCodes[] = 

            { '1','2','3','4','5','6','7','8','9','0',

              '*',EStdKeyNkpAsterisk,EStdKeyHash,EStdKeyNkpPlus };

        static const TInt KIdPlgScanCodeCount = 

            sizeof( KIdPlgScanCodes ) / sizeof( KIdPlgScanCodes[0] );

        TInt count = KIdPlgScanCodeCount;

        while( count-- )

            {

            const TInt refCode = KIdPlgScanCodes[ count ];

            // Is one of [0,1,2,3,4,5,6,7,8,9,*,#]?

            if( refCode == scanCode )

                {

                return ETrue;

                }

            }

        }

    return EFalse;

    }

/**

 * Load input locales.

 */

void CNumericKeyHandler::LoadInputLanguageKeyBindings( TInt aLanguage )

    {

    iNumericKeys.Reset();

    TRAPD( err, 

        {

        CPtiEngine* ptiEngine = CPtiEngine::NewL();

        CleanupStack::PushL( ptiEngine );

        ptiEngine->GetNumericModeKeysForQwertyL( aLanguage, 

                                                 iNumericKeys );         

        CleanupStack::PopAndDestroy( ptiEngine );                                                 

        } ); // TRAP

    if ( err )        

        {

        iNumericKeys.Reset();

        iQwertyMode = 0; // To default mode

        }

    else

        {

        // remove numeric chars that not open number entry

        TInt numericKeysCount = iNumericKeys.Count();

        while ( numericKeysCount-- )

            {

            TPtiNumericKeyBinding numKeyBind = iNumericKeys[numericKeysCount];

            if ( numKeyBind.iChar == 'w' ||

                 numKeyBind.iChar == 'p' 

#ifndef RD_INTELLIGENT_TEXT_INPUT

                 /*

                 * The following code is commented because

                 * For GQF requirement Space is mapped to "0"

                 */

                 || numKeyBind.iKey == EPtiKeyQwertySpace  

#endif

               )

                 {

                 iNumericKeys.Remove( numericKeysCount );                    

                 }

            }    

        }

    }

/**

 * Handles qwerty mode change.

 */

TInt CNumericKeyHandler::HandleQwertyModeChanged( TAny *aPtr )

    {

    CNumericKeyHandler* self = static_cast<CNumericKeyHandler*>( aPtr );

    if( self )

        {

        TInt value = self->iQwertyMode;

        TInt err = self->iQwertyObserver->Get( value );

        if( err == KErrNone )

            {

            self->SetQwertyMode( value );

            }

        // Load key bindings if not already loaded

#ifdef RD_INTELLIGENT_TEXT_INPUT

        if ( self->iQwertyMode )

            {

            self->iNumericKeys.Reset();

#else 

        if ( self->iQwertyMode && !self->iNumericKeys.Count() )

            {

#endif

        	self->LoadInputLanguageKeyBindings( self->iInputLanguage );

            }

        }

    return KErrNone;

    }

/**

 * Handles input language change.

 */

TInt CNumericKeyHandler::HandleInputLanguageChanged( TInt aNewValue )

	{    	

	SetInputLanguage( aNewValue );

	LoadInputLanguageKeyBindings( aNewValue );

    return KErrNone;

	}

/**

 * Set qwerty mode.

 */

void CNumericKeyHandler::SetQwertyMode( TInt aValue )

	{

	iQwertyMode = aValue;

	}

/**

 * Set input language.

 */

void CNumericKeyHandler::SetInputLanguage( TInt aValue )

    {

    iInputLanguage = aValue;

    }

void CNumericKeyHandler::HandleNotifyGeneric(TUint32 aKey)

	{

	if( aKey == KAknFepInputTxtLang )

		{

		TInt newValue = iInputLanguage;

		iInputLanguageRepository->Get( KAknFepInputTxtLang, newValue );

		HandleInputLanguageChanged( newValue );

		}

	}

void CNumericKeyHandler::HandleNotifyError

        (TUint32 /*aKey*/, TInt /*aError*/, CCenRepNotifyHandler* /*aHandler*/)

    {

    }

} // namespace AiWsPlugin