/*

* 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:           

*       Provides the CAknFepUIInputStateEntryQwertyZhuyin methods.

*

*/

#include "AknFepUiInputStateEntryQwertyZhuyin.h"

#include "AknFepUIManagerStateInterface.h"

#include <PtiEngine.h>

#include <e32keys.h>

#include <PtiDefs.h>                //keys

#include "AknFepUICtrlInputPane.h"

#include "AknFepUICtrlCandidatePane.h"

#include "AknFepManagerUIInterface.h"       //MAknFepManagerUIInterface

#include "AknFepManager.h"                  //FepMan flag

const TInt KMaxCandidateCountFromCore = 6;

TAknFepInputStateEntryQwertyZhuyin::TAknFepInputStateEntryQwertyZhuyin(

                                MAknFepUIManagerStateInterface* aOwner,

                                MAknFepUICtrlContainerChinese* aUIContainer)

    :TAknFepInputStateEntryQwertyBase(aOwner, aUIContainer)

    {

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    MAknFepUICtrlInputPane* inputPane = uiContainer->InputPane();

    uiContainer->CandidatePane()->ShowCandidateOrdinals(EFalse);

    CPtiEngine* ptiengine = iOwner->PtiEngine();

    if (EPtiEngineZhuyinQwerty != ptiengine->InputMode())

        {

        ptiengine->SetInputMode(EPtiEngineZhuyinQwerty);

        }

    TBool multiplePages = iOwner->PtiEngine()->MoreCandidatePages();

    TInt bufLength = iOwner->PtiEngine()->CandidatePage().Length();

    TBool showHorizontalScrollArrows = multiplePages || bufLength>1;

    uiContainer->CandidatePane()->ShowHorizontalScrollArrows(showHorizontalScrollArrows); 

    uiContainer->CandidatePane()->ShowVerticalScrollArrows(multiplePages);

    ptiengine->SetCandidatePageLength(MAknFepUICtrlContainerChinese::ELayoutInput);

    iOwner->PtiEngine()->SetCase(EPtiCaseLower);

    _LIT(KToneNoneZhuyin, "");

    inputPane->SetToneMark(KToneNoneZhuyin);

    UpdateIndicator();

    }

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

    {

    CPtiEngine* ptiengine = iOwner->PtiEngine();

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    TBool ret = ETrue;

    if((aKey == EPtiKey3 || 

        aKey == EPtiKey4 || 

        aKey == EPtiKey6 || 

        aKey == EPtiKey7 ||

        aKey == EStdKeySpace) && 

        (aLength == EShortKeyPress))

        {

        ptiengine->CancelTimerActivity();

        if(ptiengine->SetToneMark(aKey))

            {

            TBool multiplePages = ptiengine->MoreCandidatePages();

            TInt bufLength = ptiengine->CandidatePage().Length();

            TBool showHorizontalScrollArrows = multiplePages || bufLength>1;

            UIContainer()->ShowHorizontalScrollArrows(showHorizontalScrollArrows);

            UIContainer()->ShowVerticalScrollArrows(ptiengine->MoreCandidatePages());

            SetInputPaneToneMark();

            RefreshUI();

            }

        }

    else if(aKey == EStdKeyBackspace)

        {

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

            {

            TBool multiplePages = ptiengine->MoreCandidatePages();

            TInt bufLength = ptiengine->CandidatePage().Length();

            TBool showHorizontalScrollArrows = multiplePages || bufLength>1;

            UIContainer()->ShowHorizontalScrollArrows(showHorizontalScrollArrows);

            uiContainer->ShowVerticalScrollArrows(ptiengine->MoreCandidatePages());

            SetInputPaneToneMark();

            RefreshUI();

            }

        else

            {

            iOwner->FepMan()->TryCloseUiL();

            if (aLength == ELongKeyPress)

                {

                iOwner->FepMan()->SetLongClearAfterCloseUI(ETrue);

                }

            }

        }

    else if((aLength == EShortKeyPress) && iOwner->IsValidChineseInputKeyQwerty(aKey))

        {

        ptiengine->CancelTimerActivity();

        ptiengine->AppendKeyPress((TPtiKey)aKey);

        TBool multiplePages = ptiengine->MoreCandidatePages();

        TInt bufLength = ptiengine->CandidatePage().Length();

        TBool showHorizontalScrollArrows = multiplePages || bufLength>1;

        UIContainer()->ShowHorizontalScrollArrows(showHorizontalScrollArrows);

        uiContainer->ShowVerticalScrollArrows(ptiengine->MoreCandidatePages());

        SetInputPaneToneMark();

        RefreshUI();

        }

    else if(aKey == EStdKeyRightArrow || aKey == EStdKeyLeftArrow) 

        {

        ptiengine->CancelTimerActivity();

        iOwner->ChangeState(ECandidate);

        ret = EFalse;

        }

    else if(aKey == EStdKeyDevice1)

        {

        iOwner->FepMan()->TryCloseUiL();

        }

    else if(!HandleVerticalNavigation(aKey))

        {

        // it may be one of the 'valid' numbers..

        TInt index = MapKeyToIndex(aKey);

        MAknFepUICtrlCandidatePane* candidatePane = UIContainer()->CandidatePane();

        if(candidatePane->SelectIndex(index) || aKey == EStdKeyDevice3 || aKey == EStdKeyEnter)

            {

            TPtrC text = candidatePane->CurrentCandidate();

            if(text.Length())

                {            

                MAknFepManagerUIInterface* fepMan = iOwner->FepMan();

                fepMan->NewCharacterL(text);

                fepMan->CommitInlineEditL();

                iOwner->PtiEngine()->SetPredictiveChineseChar(text);

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

                    {

                    fepMan->ClearFlag(CAknFepManager::EFlagEditorFull);

                    iOwner->FepMan()->TryCloseUiL();

                    }

                else

                    {

                    iOwner->ChangeState(EPredictiveCandidate);

                    }

                }

            else

                {

                // No candidates available. Back to Entry state.

                iOwner->ChangeState(EEntry);

                }

            }

        }

    return ret;

    }

void TAknFepInputStateEntryQwertyZhuyin::KeyTimerExpired()

    {

    CPtiEngine* ptiengine = iOwner->PtiEngine();

    TPtrC candidates = ptiengine->CandidatePage();

    TText toneMark;

    TBool toneMarkEntered = ptiengine->ToneMark(toneMark);

    TBool toneMarkValid = ptiengine->IsToneMarkValidForSpelling();

    if(!candidates.Length() || (toneMarkEntered && !toneMarkValid))

        {

        MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

        ptiengine->DeleteKeyPress();

        SetInputPaneToneMark();

        TBool multiplePages = ptiengine->MoreCandidatePages();

        TInt bufLength = ptiengine->CandidatePage().Length();

        TBool showHorizontalScrollArrows = multiplePages || bufLength>1;

        UIContainer()->ShowHorizontalScrollArrows(showHorizontalScrollArrows);

        uiContainer->ShowVerticalScrollArrows(ptiengine->MoreCandidatePages());

        RefreshUI();

        }

    }

void TAknFepInputStateEntryQwertyZhuyin::RefreshUI()

    {

    CPtiEngine* ptiengine = iOwner->PtiEngine();

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    MAknFepUICtrlInputPane* inputPane = uiContainer->InputPane();

    // set container's position

    TPoint baseLine = TPoint(0,0);

    TInt height = 0;

    TInt ascent = 0;

    TRAPD(ret,iOwner->FepMan()->GetScreenCoordinatesL(baseLine,height,ascent));

    if (ret == KErrNone)

        {

        uiContainer->SetContainerPosition(baseLine, height);    

        }

    TPtrC candidates = ptiengine->CandidatePage();

    uiContainer->CandidatePane()->SetCandidateBuffer(candidates);

    uiContainer->Enable(ETrue);

    uiContainer->CandidatePane()->SelectFirst();

    TPtrC ptr = ptiengine->GetPhoneticSpelling(1);

    inputPane->SetText(ptr);

    UpdateIndicator();

   }

void TAknFepInputStateEntryQwertyZhuyin::UpdateIndicator()

    {

    CPtiEngine* ptiengine = iOwner->PtiEngine();

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();        

    TInt bufLength = iOwner->PtiEngine()->CandidatePage().Length();

    MAknFepUICtrlCandidatePane* candidatePane = uiContainer->CandidatePane();

    if (ptiengine->NumberOfCandidates() == 0)

        {

        uiContainer->CandidatePane()->ShowUpScrollArrows(EFalse);    

        }

    else

        {

        uiContainer->CandidatePane()->ShowUpScrollArrows(ETrue);    

        }

    uiContainer->CandidatePane()->ShowDownScrollArrows

        (bufLength == KMaxCandidateCountFromCore ? ETrue : EFalse);

    if (candidatePane->SelectedIndex() == 0 && 

        ptiengine->NumberOfCandidates() == 0)

        {

        uiContainer->CandidatePane()->ShowLeftScrollArrows(EFalse);

        }

    else

        {

        uiContainer->CandidatePane()->ShowLeftScrollArrows(ETrue);

        }

    if (bufLength != KMaxCandidateCountFromCore &&

        candidatePane->SelectedIndex() == (bufLength -1))

        {

        uiContainer->CandidatePane()->ShowRightScrollArrows(EFalse);        

        }

    else

        {

        uiContainer->CandidatePane()->ShowRightScrollArrows(ETrue);

        }

    }

TBool TAknFepInputStateEntryQwertyZhuyin::HandleVerticalNavigation(TInt aKey)

    {

    CPtiEngine* ptiengine = iOwner->PtiEngine();

    if (aKey == EStdKeyDownArrow || aKey == EStdKeySpace)

        {

        if (iOwner->PtiEngine()->CandidatePage().Length() != 

            KMaxCandidateCountFromCore)

            {

            return ETrue;

            }

        ptiengine->NextCandidatePage();

        }

    else if (aKey == EStdKeyUpArrow)

        {

        if (ptiengine->NumberOfCandidates() == 0)

            {								 

            return ETrue;

            }

        ptiengine->PreviousCandidatePage();

        }

    else

        {

        return EFalse;

        }

    MAknFepUICtrlCandidatePane* candidatePane = UIContainer()->CandidatePane();

    candidatePane->SelectFirst();

    candidatePane->SetCandidateBuffer(ptiengine->CandidatePage());

    UpdateIndicator();    

    return ETrue;

    }

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

// TAknFepInputStateEntryQwertyZhuyin::HandleCommandL

// Handling Command

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

//

void TAknFepInputStateEntryQwertyZhuyin::HandleCommandL( TInt aCommandId )

    {

    TAknFepInputStateChineseBase::HandleCommandL( aCommandId );

    }

// End of file