/*

* Copyright (c) 2002 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:           

*       Provides the TAknFepInputStateEntryThaiPredictive methods.

*

*/

#include "AknFepUiInputStateEntryThaiPredictive.h"

#include "AknFepUIManagerStateInterface.h"      //MAknFepUIManagerStateInterface

#include "AknFepManagerUIInterface.h"           //MAknFepManagerUIInterface

#include "AknFepManager.h"

#include "AknFepPanic.h"

#include "AknFepCaseManager.h"

#include <PtiEngine.h>                             //CPtiEngine

#include <PtiDefs.h>                            //keys

#include <e32keys.h>

#include <AknFep.rsg>

TAknFepInputStateEntryThaiPredictive::

TAknFepInputStateEntryThaiPredictive(MAknFepUIManagerStateInterface* aOwner)

    :TAknFepInputStateEntryWesternPredictive(aOwner)

    {

    //this class insists on the existence of a case manager

    __ASSERT_DEBUG(iOwner->CaseMan(), AknFepPanic(EAknFepPanicNoCaseManager));

    iState = EEntry;

    iMatchState = EWordMatchNone;

    CPtiEngine* ptiengine = iOwner->PtiEngine();

#ifdef RD_INTELLIGENT_TEXT_INPUT

    ptiengine->SetInputMode(EPtiEnginePredictive);

    MAknFepManagerUIInterface* fepMan = iOwner->FepMan();

    TBool isUnlimitedEditor = EFalse;

    ptiengine->SetMaxLengthForAutoCompletedCandidates(fepMan->EditorFreeSpaceForAutoWordCompletion(isUnlimitedEditor ));

    // To set the input mode

    if(fepMan->IsAutoCompleteOn())

        {

		TRAP_IGNORE(ptiengine->HandleCommandL(EPtiCommandEnableAutoCompletion));

        }

    else

        {

		TRAP_IGNORE(ptiengine->HandleCommandL(EPtiCommandDisableAutoCompletion));

        }

    TPtiKeyboardType keyboard = fepMan->KeyboardLayout();

    ptiengine->SetKeyboardType(keyboard);

    TBool isNumberCandidateShown = fepMan->IsAdvancedPredictiveNumberCandidateShown();

	TRAP_IGNORE(ptiengine->HandleCommandL( EPtiCommandSetNumberCandidateStatus, &isNumberCandidateShown ));

#else

    ptiengine->ClearCurrentWord();

#ifdef RD_PRED_AW_COMPLETION

    MAknFepManagerUIInterface* fepMan = iOwner->FepMan();

    // To set the input mode

    if(fepMan->IsAutoCompleteOn())

        {

        ptiengine->SetInputMode(EPtiEngineWordCompletion);

        }

    else

#endif // RD_PRED_AW_COMPLETION

        {

        ptiengine->SetInputMode(EPtiEnginePredictive);

        }

#endif // RD_INTELLIGENT_TEXT_INPUT

    ptiengine->SetCase(EPtiCaseLower);

    }

TBool TAknFepInputStateEntryThaiPredictive::HandleKeyL(TInt aKey, TKeyPressLength aLength)

    {

    TBool response = ETrue;

    switch (aKey)

        {

    case EPtiKey1: //fall through

    case EPtiKey2:

    case EPtiKey3:

    case EPtiKey4:

    case EPtiKey5:

    case EPtiKey6:

    case EPtiKey7:

    case EPtiKey8:

    case EPtiKey9:

    case EPtiKey0:

    case EPtiKeyStar:

        break;

    case EKeyDownArrow:

        response = HandleDownKeyL();

        break;

    case EKeyUpArrow:

        response = HandleUpKeyL();

        break;

    case EKeyRightArrow: // fall through

    case EKeyLeftArrow: 

    case EKeyBackspace:

        response = HandleNaviKeysL(aKey, aLength);

        break;

    default:

        response = EFalse;

        break;

        }

    return response;

    }

TBool TAknFepInputStateEntryThaiPredictive::HandleDownKeyL()

    {

    MAknFepManagerUIInterface* fepMan = iOwner->FepMan();

    CPtiEngine* ptiengine = iOwner->PtiEngine();

    if (!(fepMan->IsFlagSet(CAknFepManager::EFlagInsideInlineEditingTransaction)))

        {

        return EFalse;

        }

    else

        {

        if (fepMan->IsFlagSet(CAknFepManager::EFlagNoMatches))

            {

            //no more matches

            fepMan->PlaySound(EAvkonSIDWarningTone);

            }

        else if (ptiengine->NumberOfCandidates()<=1)

            { 

            // only one match

            if (iMatchState == EWordMatchFirst || iMatchState == EWordMatchNone)

                {

                fepMan->UpdateCbaL(R_AKNFEP_SOFTKEYS_SPELL_EMPTY);

                iMatchState = EWordMatchLast;

                }

            }

        else

            { 

            // > 1 match

            if (iMatchState == EWordMatchLast && !(ptiengine->LastEnteredKey() == EPtiKey1))

                {

                fepMan->UpdateCbaL(R_AKNFEP_SOFTKEYS_SPELL_PREVIOUS);

                }

            else if (iMatchState == EWordMatchFirst || iMatchState == EWordMatchNone)

                {

                fepMan->UpdateCbaL(R_AKNFEP_SOFTKEYS_EMPTY_PREVIOUS);

                iMatchState = EWordMatchStd;

                }

            TPtrC newText = ptiengine->NextCandidate();

            fepMan->UpdateInlineEditL(newText, 0);

            }

        }

    return ETrue;

    }

TBool TAknFepInputStateEntryThaiPredictive::HandleUpKeyL()

    {

    MAknFepManagerUIInterface* fepMan = iOwner->FepMan();

    CPtiEngine* ptiengine = iOwner->PtiEngine();

    if (!(fepMan->IsFlagSet(CAknFepManager::EFlagInsideInlineEditingTransaction)))

        {

        return EFalse;

        }    

#ifdef RD_INTELLIGENT_TEXT_INPUT    

    TInt lastCandidateIndex = ptiengine->NumberOfCandidates() -1;

    if(lastCandidateIndex >= 0)

        {

        // Get last word on list

        fepMan->LaunchCandidatePopupListL( lastCandidateIndex );        

        }

    else

        {

        TInt wordIndexToSelect = 0;

        // Get next word on list (wrap around if at end)

        ptiengine->HandleCommandL( EPtiCommandUserActionGetCurrentIndexOfCandidates, 

			&wordIndexToSelect );

        wordIndexToSelect < lastCandidateIndex ? wordIndexToSelect++ : wordIndexToSelect = 0;

        fepMan->LaunchCandidatePopupListL( wordIndexToSelect );        

        }                        	                        	    

#else      

    if (!( (iMatchState == EWordMatchFirst) || !(fepMan->IsFlagSet(CAknFepManager::EFlagInsideInlineEditingTransaction))))

        {

        if (iMatchState == EWordMatchLast || iMatchState == EWordMatchAfterLast)

            {

            fepMan->UpdateCbaL(R_AKNFEP_SOFTKEYS_EMPTY_PREVIOUS);

            }

        iMatchState = EWordMatchStd; 

        TPtrC prevText = ptiengine->PreviousCandidate();

        fepMan->UpdateInlineEditL(prevText, 0);

        }

#endif //RD_INTELLIGENT_TEXT_INPUT

    return ETrue;

    }

// End of file