/*

* Copyright (c) 2002-2005 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:  drop-down list control

*

*/

#include <peninputdropdownlist.h>

#include <PtiEngine.h>

#include <peninputgeneralitutnew.rsg>

#include <peninputitutconfig_chinese.rsg>

#include "peninputitutchnuistatepinyincomposition.h"

#include "peninputgenericitutuimgrbase.h"

#include "peninputgenericitutdatamgr.h"

#include "peninputgenericitutlayoutcontext.h"

#include "peninputgenericitutconverter.h"

CChnItutUiStatePinyinComposition* CChnItutUiStatePinyinComposition::NewL(

    CGenericItutUiMgrBase* aOwner)

    {

    CChnItutUiStatePinyinComposition* self = 

        new (ELeave) CChnItutUiStatePinyinComposition(aOwner);

    CleanupStack::PushL(self);

    self->ConstructL(); 

    CleanupStack::Pop(self);

    return self;

    }

CChnItutUiStatePinyinComposition::~CChnItutUiStatePinyinComposition()

    {

    }

CChnItutUiStatePinyinComposition::CChnItutUiStatePinyinComposition(

    CGenericItutUiMgrBase* aOwner):CGenericItutUiStateBase(aOwner)

    {

    }

void CChnItutUiStatePinyinComposition::OnEntryL()

    {

    // update resource id of keypad, candidate drop list

    iOwner->DataMgr()->NotifyChangeControlLayout(

        MItutPropertySubscriber::EItutPropertyKeypadResourceId, 

        R_FINGER_INPUT_KEYPAD_PINYIN_COMPOSITION);

    iOwner->DataMgr()->NotifyChangeControlLayout(

        MItutPropertySubscriber::EItutPropertyCandidateListResourceId,

        R_AKN_FEP_PINYIN_CAND_DROP_DOWN_LIST);

    // show spell drop list

    CFepCtrlDropdownList* spelllist = static_cast<CFepCtrlDropdownList*>(

        iOwner->LayoutContext()->Control(ECtrlIdSpellCandsList));

    spelllist->Hide(EFalse);

    // show candidate drop list

    CFepCtrlDropdownList* candlist = static_cast<CFepCtrlDropdownList*>(

        iOwner->LayoutContext()->Control(ECtrlIdStdCandsList));

    candlist->Hide(EFalse);

    //hide navi button

    iOwner->LayoutContext()->ShowArrowBtn(0);

    //hide indicator 

    iOwner->LayoutContext()->Control(ECtrlIdIndicator)->Hide(ETrue);    

    }

void CChnItutUiStatePinyinComposition::OnExit()

    {

    // hide dropdownlist & reset its status

    CFepCtrlDropdownList* spelllist = static_cast<CFepCtrlDropdownList*>(

        iOwner->LayoutContext()->Control(ECtrlIdSpellCandsList));

    spelllist->ResetAndClear(CFepCtrlDropdownList::EListExpandableRollWithIcon);

    iSpellCands.ResetAndDestroy();

    iSpellCands.Close();

    spelllist->Hide(ETrue);

    CFepCtrlDropdownList* candlist = static_cast<CFepCtrlDropdownList*>(

        iOwner->LayoutContext()->Control(ECtrlIdStdCandsList));

    candlist->ResetAndClear(CFepCtrlDropdownList::EListExpandable);

    iOwner->DataMgr()->ClearChnCandidates(EItutCandidates);

    candlist->Hide(ETrue);

    iOwner->DataMgr()->PtiEngine()->ClearCurrentWord();

    //show navi button

    iOwner->LayoutContext()->ShowArrowBtn(EBtnArrowLeft | EBtnArrowRight

             | EBtnArrowUp| EBtnArrowDown);

    //show indicator 

    iOwner->LayoutContext()->Control(ECtrlIdIndicator)->Hide(EFalse);

    iOwner->DataMgr()->PtiEngine()->ClearCurrentWord();

    }

TBool CChnItutUiStatePinyinComposition::HandleKeyL(TInt /*aCmd*/, TInt aKey)

    {

    if (!(aKey == EKeyBackspace || 

        (aKey >= EPtiKey0 && aKey <= EPtiKey9) || 

        (aKey == EPtiKeyStar)))

        {

        return EFalse;

        }

    if (aKey >= EPtiKey0 && aKey <= EPtiKey9)

        {

        // append keypress 

        iOwner->DataMgr()->PtiEngine()->AppendKeyPress(TPtiKey(aKey));

        }

    else if (aKey == EKeyBackspace)

        {

        if (!iOwner->DataMgr()->PtiEngine()->DeleteKeyPress().Length())

            {

            iOwner->SetCurrentStateL(CGenericItutUiMgrBase::EStateStandby);

            iOwner->SetClrConsume(ETrue);

            return ETrue;

            }

        }

    else{

         // input tonemark

        if (!iOwner->DataMgr()->PtiEngine()->IncrementToneMark(ETrue))

            {

            // tonemark did not set correctly, everything unchanged

            return ETrue;

            }

        }

    // get all spelling

    TInt spellcnt = iOwner->DataMgr()->PtiEngine()->PhoneticSpellingCount();

    iSpellCands.ResetAndDestroy();

    iSpellCands.Close();

    // note: ptiengine's phonetic spelling start index is 1, not 0

    for (TInt i = 1; i < (spellcnt + 1); i++)

        {

        HBufC* spellbuf = (iOwner->DataMgr()->PtiEngine()->GetPhoneticSpelling(i)).AllocL();

        CleanupStack::PushL(spellbuf);

        iSpellCands.Append(spellbuf);

        CleanupStack::Pop(spellbuf);

        }

    TInt nearestIdx = 0;

    /*

    if (iLastSelSpell)

        {

        nearestIdx = GetNearestSpell(iLastSelSpell->Length());

        delete iLastSelSpell;

        iLastSelSpell = NULL;

        }

    iLastSelSpell = (iOwner->DataMgr()->PtiEngine()->GetPhoneticSpelling(nearestIdx + 1)).AllocL();

    */

    // set spell, set highlight of spelling candidate list

    CFepCtrlDropdownList* spelldroplist = static_cast<CFepCtrlDropdownList*>(

        iOwner->LayoutContext()->Control(ECtrlIdSpellCandsList));

    spelldroplist->SetCandidatesL(iSpellCands, CFepCtrlDropdownList::EListExpandableRollWithIconWithBubble);

    spelldroplist->SetHighlightCell(nearestIdx);

    // get candidates of nearest spell

    iOwner->DataMgr()->PtiEngine()->SelectPhoneticSpelling(nearestIdx + 1);

    TPtrC cands = iOwner->DataMgr()->PtiEngine()->CandidatePage();

    iOwner->DataMgr()->ClearChnCandidates(EItutCandidates);

    RPointerArray<HBufC>& candslist = 

        TItutDataConverter::AnyToRptrArray(iOwner->DataMgr()->RequestData(EChnCandidates));

    TItutDataConverter::ConvertChnPhraseCandidateL(cands, candslist);

    // set candidate

    CFepCtrlDropdownList* canddroplist = 

        static_cast<CFepCtrlDropdownList*>(iOwner->LayoutContext()->Control(ECtrlIdStdCandsList));

    canddroplist->SetCandidatesL(candslist, CFepCtrlDropdownList::EListExpandableWithBubble);

    return ETrue;

    }

/*

TInt CChnItutUiStatePinyinComposition::GetNearestSpell(TInt aValidLastSpellLen)

    {

    if (aValidLastSpellLen <= 0)

        {

        return 0;

        }

    for (TInt i = 0; i < iSpellCands.Count(); i++)

        {

        if ((iSpellCands[i]->Left(aValidLastSpellLen)).Compare(iLastSelSpell->Left(aValidLastSpellLen)) == 0)

            {

            return i;

            }

        }

    return GetNearestSpell(aValidLastSpellLen-1);

    }

*/    

TBool CChnItutUiStatePinyinComposition::HandleCtrlEventL(

    TInt aEventType, CFepUiBaseCtrl* aCtrl, const TDesC& aEventData)

    {

    switch (aEventType)

        {

        case EItutCmdCandidateSelected:

            {

            // press cell on spelling list

            if (aCtrl->ControlId() == ECtrlIdSpellCandsList &&

                aEventData.Length() > 0)

                {

                TInt selCandIdx = aEventData[aEventData.Length() - 1];

                // note for ptiengine, spelling index start from 1, not 0

                iOwner->DataMgr()->PtiEngine()->SelectPhoneticSpelling(selCandIdx + 1);

                CFepCtrlDropdownList* spelldroplist = static_cast<CFepCtrlDropdownList*>(aCtrl);

                spelldroplist->SetHighlightCell(selCandIdx);

                /*                 

                delete iLastSelSpell;

                iLastSelSpell = NULL;

                iLastSelSpell = (iOwner->DataMgr()->PtiEngine()->GetPhoneticSpelling(selCandIdx + 1)).AllocL();

                */

                TPtrC cands = iOwner->DataMgr()->PtiEngine()->CandidatePage();

                iOwner->DataMgr()->ClearChnCandidates(EItutCandidates);

                RPointerArray<HBufC>& candslist = TItutDataConverter::AnyToRptrArray(

                    iOwner->DataMgr()->RequestData(EChnCandidates));

                TItutDataConverter::ConvertChnPhraseCandidateL(cands, candslist);

                CFepCtrlDropdownList* canddroplist = static_cast<CFepCtrlDropdownList*>(

                    iOwner->LayoutContext()->Control(ECtrlIdStdCandsList));

                canddroplist->SetCandidatesL(candslist, CFepCtrlDropdownList::EListExpandableWithBubble);

                return ETrue;

                }

            else if (aCtrl->ControlId() == ECtrlIdStdCandsList)

                {

                iOwner->SetCurrentStateL(CGenericItutUiMgrBase::EStatePredict);

                return iOwner->CurrentState()->HandleCtrlEventL(aEventType, aCtrl, aEventData);

                }

            }

            break;

        case EItutCmdGetNextCandidatePage:

            {

            if (aCtrl->ControlId() == ECtrlIdStdCandsList)

                {

                RPointerArray<HBufC>& candslist = TItutDataConverter::AnyToRptrArray(

                    iOwner->DataMgr()->RequestData(EChnCandidates));

                // original candidate count before fetch new candidate

                TInt candscnt = candslist.Count();

                if (iOwner->DataMgr()->GetNextPageCandidateL(candslist) == KErrNone)

                    {

                    static_cast<CFepCtrlDropdownList*>(aCtrl)->AddCandidatesL(candslist);    

                    }

                return ETrue;

                }

            }

            break;

        case EItutCmdCandidateExisted:

            {

            if (aCtrl->ControlId() == ECtrlIdStdCandsList)

                {

                static_cast<CFepCtrlDropdownList*>(

                    aCtrl)->SetFlagCandidateExist(iOwner->DataMgr()->NextPageCandidateExist());

                return ETrue;

                }

            }

            break;

        // consume star key at pinyin composition state

        case EEventRawKeyDownEvent:

            {

            const TKeyEvent *key = reinterpret_cast<const TKeyEvent*>(aEventData.Ptr());

            if (key->iScanCode == EStdKeyNkpAsterisk)

                {

                HandleKeyL(ECmdPenInputFingerKeyPress, EPtiKeyStar);

                return ETrue;

                }

            }

            break;

        case EEventRawKeyUpEvent:

            {

            const TKeyEvent *key = reinterpret_cast<const TKeyEvent*>(aEventData.Ptr());

            if (key->iScanCode == EStdKeyNkpAsterisk)

                {

                return ETrue;

                }

            }

            break;

        default:

            break;

        }

    return EFalse;

    }

CGenericItutUiMgrBase::TUiState CChnItutUiStatePinyinComposition::StateType()

    {

    return CGenericItutUiMgrBase::EStateComposition;

    }

// End Of File