/*

* Copyright (c) 2002-2004 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 CAknFepUIInputStateZhuyin methods.

*

*/

#include "AknFepUiInputStateEntryZhuyin.h"

#include "AknFepUIManagerStateInterface.h"

#include <PtiEngine.h>

#include <e32keys.h>

#include <PtiDefs.h>                //keys

#include "AknFepUICtrlInputPane.h"

#include "AknFepUICtrlCandidatePane.h"

#include "AknFepManager.h"

const TInt KMaxCandidateCountFromCore = 6;

TAknFepInputStateEntryZhuyin::TAknFepInputStateEntryZhuyin(

                                MAknFepUIManagerStateInterface* aOwner,

                                MAknFepUICtrlContainerChinese* aUIContainer)

    :TAknFepInputStateEntryZhuyinStrokeBase(aOwner, aUIContainer)

    {

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    uiContainer->SetLayout(MAknFepUICtrlContainerChinese::ELayoutInput);

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

    uiContainer->InputPane()->SetOverrideFontId(0);

    CPtiEngine* ptiengine = iOwner->PtiEngine();

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

        {

        ptiengine->SetInputMode(EPtiEngineZhuyin);

        }

    ptiengine->SetCandidatePageLength(MAknFepUICtrlContainerChinese::ELayoutInput);

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

        {

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

        }

    else

        {

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

        }

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

    uiContainer->CandidatePane()->ShowDownScrollArrows

        (bufLength == KMaxCandidateCountFromCore ? ETrue : EFalse);

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

    uiContainer->CandidatePane()->ShowRightScrollArrows(bufLength ? ETrue : EFalse);

    iUseforResourcechange = EFalse;

    }

void TAknFepInputStateEntryZhuyin::HandleCommandL(TInt /*aCommandId*/)

	{	

    RefreshUI(iUseforResourcechange);	

 	}

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

    {

   	iOwner->FepMan()->SetCcpuFlag(CAknFepManager::ECcpuStateIgnoreStarUp);        

    CPtiEngine* ptiengine = iOwner->PtiEngine();

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    if((aKey == EPtiKeyStar) && (aLength == EShortKeyPress))

        {

        ptiengine->CancelTimerActivity();

        if(ptiengine->IncrementToneMark(ETrue))

            {

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

            SetInputPaneToneMark();

            iUseforResourcechange = EFalse;

            RefreshUI(EFalse);

            }

        return ETrue;

        }

    else if(aKey == EKeyBackspace)

        {

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

            {

            TBool multiplePages = ptiengine->MoreCandidatePages();

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

            TBool showHorizontalScrollArrows = multiplePages || bufLength>1;

            uiContainer->ShowHorizontalScrollArrows(showHorizontalScrollArrows); 

            uiContainer->ShowVerticalScrollArrows(multiplePages);

            iUseforResourcechange = EFalse;

            RefreshUI(EFalse);

            SetInputPaneToneMark();

            }

        else

            {

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

            if (aLength == ELongKeyPress)

                {

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

                }

            }

        return ETrue;    

        }

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

        {

     	iOwner->FepMan()->SetCcpuFlag(CAknFepManager::ECcpuStateIgnoreStarUp);        

        ptiengine->AppendKeyPress((TPtiKey)aKey);

        TBool multiplePages = ptiengine->MoreCandidatePages();

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

        TBool showHorizontalScrollArrows = multiplePages || bufLength>1;

        uiContainer->ShowHorizontalScrollArrows(showHorizontalScrollArrows); 

        uiContainer->ShowVerticalScrollArrows(multiplePages);

        SetInputPaneToneMark();

        iUseforResourcechange = EFalse;

        RefreshUI(EFalse);

        return ETrue;

        }

    else if(aKey == EKeyDownArrow)

        {

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

            KMaxCandidateCountFromCore)

            {

            ptiengine->CancelTimerActivity();

            ptiengine->NextCandidatePage();

            iUseforResourcechange = ETrue;

            RefreshUI(ETrue);

            }

        return ETrue;

        }

    else if(aKey == EKeyUpArrow)

        {

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

            {

            ptiengine->CancelTimerActivity();

            ptiengine->PreviousCandidatePage();

            iUseforResourcechange = ETrue;

            RefreshUI(ETrue);

            }

        return ETrue;

        }   

    else if(aKey == EKeyOK || aKey == EKeyRightArrow || aKey == EKeyLeftArrow)

        {

        ptiengine->CancelTimerActivity();        

        iOwner->ChangeState(ECandidate);

        return EFalse;

        }

    return TAknFepInputStateEntryZhuyinStrokeBase::HandleKeyL(aKey, aLength);

    }

void TAknFepInputStateEntryZhuyin::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();

        if(toneMarkEntered)

            {

            ptiengine->ResetToneMark();

            if( !candidates.Length() )  

            	{

            	ptiengine->DeleteKeyPress();

            	}

            }

        else

            {

            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(EFalse);

        }

    }

void TAknFepInputStateEntryZhuyin::RefreshUI(TBool aOrdinals)

    {

    CPtiEngine* ptiengine = iOwner->PtiEngine();

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    MAknFepUICtrlInputPane* inputPane = uiContainer->InputPane();

    // Universal layout 

    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);

    if (aOrdinals)

        {

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

        }

    else

        {

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

        }

    TPtrC ptr = ptiengine->GetPhoneticSpelling(1);

    inputPane->SetText(ptr);

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

        {

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

        }

    else

        {

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

        }

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

    uiContainer->CandidatePane()->ShowDownScrollArrows

        (bufLength == KMaxCandidateCountFromCore ? ETrue : EFalse);

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

    uiContainer->CandidatePane()->ShowRightScrollArrows(bufLength ? ETrue : EFalse);

    }

// End of file