/*

* 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:            Implementation of Pinyin and Stroke phrase candidate state

*

*/

// System includes

#include <PtiEngine.h>   

// User includes

#include "AknFepUiInputStateCandidateHalfQwertyChinesePhrase.h"

#include "AknFepUiInputStateCandidateQwertyBaseChinesePhrase.h"

#include "AknFepUiCtrlContainerChinese.h"

#include "AknFepManagerUIInterface.h"       //MAknFepManagerUIInterface

#include "AknFepUICtrlCandidatePane.h"

#include "AknFepUICtrlInputPane.h"

#include "AknFepUICtrlPinyinPopup.h"

#include "AknFepUIManagerStateInterface.h"  

#include "AknFepManager.h" 

// Constant definition

const TInt KMinCandidateCount = 1;

//const TInt KInputPaneLength = 32;

//_LIT(KSep, "'");

//_LIT(KReplace, "");

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

// AknFepUiInputStateCandidateHalfQwertyChinesePhrase::

// TAknFepUiInputStateCandidateHalfQwertyChinesePhrase

// (other items were commented in a header).

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

//

TAknFepUiInputStateCandidateHalfQwertyChinesePhrase::

TAknFepUiInputStateCandidateHalfQwertyChinesePhrase(MAknFepUIManagerStateInterface* aOwner,

                                                      MAknFepUICtrlContainerChinese* aUIContainer)

    :TAknFepInputStateCandidateQwertyBaseChinesePhrase(aOwner, aUIContainer)

    {

    iState = ECandidate;

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    TBool multiplePages = !(uiContainer->CandidatePane()->IsLastPage() &&

                            uiContainer->CandidatePane()->IsFirstPage());

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

    TBool showHorizontalScrollArrows = multiplePages || bufLength > KMinCandidateCount;

    uiContainer->ShowHorizontalScrollArrows(showHorizontalScrollArrows); 

    uiContainer->ShowVerticalScrollArrows(multiplePages);

    uiContainer->FocusCandidatePane(ETrue);

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

    uiContainer->CandidatePane()->SelectFirstPhrase();

    UpdateIndicator();

    }

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

// AknFepUiInputStateCandidateMiniQwertyPinyinAndStrokePhrase::HandleKeyL

// (other items were commented in a header).

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

//

TBool TAknFepUiInputStateCandidateHalfQwertyChinesePhrase::HandleKeyL(TInt aKey,

                                                                    TKeyPressLength aLength)

    {

    TInt selected = UIContainer()->CandidatePane()->SelectedIndex();

    TInt numbertotal = UIContainer()->CandidatePane()->VisibleCandidateCount();

    MAknFepUICtrlPinyinPopup* popup = UIContainer()->PinyinPopupWindow();

    if ( aKey != EStdKeyLeftFunc && 

        (iOwner->FepMan()->IsFlagSet(CAknFepManager::EFlagQwertyChrKeyDepressed) ||

        iOwner->FepMan()->IsFlagSet(CAknFepManager::EFlagShiftKeyDepressed)))

        {

        iOwner->FepMan()->PlaySound(EAvkonSIDErrorTone);

        return ETrue;

        }

    else if ( aKey == EStdKeyLeftFunc )

        {

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

        iOwner->FepMan()->LaunchSelectModeMenuL();

        }

    else if ( aKey ==EStdKeySpace)

        {

        iOwner->FepMan()->PlaySound(EAvkonSIDErrorTone);

        return ETrue;

        }

    else if(aKey == EStdKeyBackspace) //clear key

        {

        UIContainer()->CandidatePane()->SplitPhraseCandidatesIntoPages();

        UIContainer()->CandidatePane()->SetCandidateBuffer();

        iOwner->ChangeState(EEntry);

        popup->SetChangeState( ETrue );

        iOwner->FepMan()->UpdateCbaL(R_AKNFEP_SOFTKEYS_OK_SELECT_CANCEL);

        return ETrue;

        }   

    else if(aKey == EStdKeyUpArrow)   //up key

        {

        if(UIContainer()->CandidatePane()->IsFirstPage())

            {

            if ( EPinyin ==iOwner->FepMan()->InputMode() )

                {

                iOwner->ChangeState(EEntry);

                iOwner->FepMan()->UpdateCbaL(R_AKNFEP_SOFTKEYS_OK_SELECT_CANCEL);

                }

            return ETrue;

            }

        else

            {

            return TAknFepInputStateCandidateQwertyBaseChinesePhrase::HandleKeyL(aKey, aLength);

            }   

        }

    else if ( aKey == EStdKeyDownArrow )

        {

        TBool state = ETrue;

        if ( popup->IsChangeStatet( ) && aLength == ELongKeyPress )

            {

            state = EFalse;

            }

        else

            {

            popup->SetChangeState( EFalse );

            }

        if ( state )

            {

            return TAknFepInputStateCandidateQwertyBaseChinesePhrase::HandleKeyL(

                            aKey, aLength );

            }

        }

    else if (aKey == EStdKeyLeftArrow)//in the same row

        {

        if (selected == 0)

           {

            UIContainer()->CandidatePane()->SelectIndex(numbertotal-1);

           }

        else

           {

            UIContainer()->CandidatePane()->SelectIndex(selected - 1);

           }      

        return ETrue;   

        }

    else if (aKey == EStdKeyRightArrow)//in the same row

        {

        if (selected == numbertotal-1)

            {

            UIContainer()->CandidatePane()->SelectIndex(0);

            }

        else

            {

            UIContainer()->CandidatePane()->SelectIndex(selected + 1);

            }     

        return ETrue;       

        } 

    else if ( aKey == EStdKeyDevice0 || 

              aKey == EStdKeyDevice3 ||

              aKey == EStdKeyEnter )//SK1,Select,Enter

        {

        TPtrC text = UIContainer()->CandidatePane()->CurrentPhraseCandidate();

        if(text.Length())

            {            

            MAknFepManagerUIInterface* fepMan = iOwner->FepMan();

            fepMan->NewTextL(text);

            fepMan->CommitInlineEditL();

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

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

                {

                fepMan->ClearFlag(CAknFepManager::EFlagEditorFull);

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

                }

            else

                {

                iOwner->ChangeState(EPredictiveCandidate);

                }

            }

        return ETrue;

        }   

    else

        {

        return TAknFepInputStateCandidateQwertyBaseChinesePhrase::HandleKeyL(aKey, aLength);

        }  

    return EFalse;     

    }

// End of file