/*

* 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 Zhuyin phrase candidate state

*

*/

// System includes

#include <PtiEngine.h>   

// User includes

#include "AknFepUiInputStateCandidateMiniQwertyZhuyinPhrase.h"

#include "AknFepUiInputStateCandidateQwertyBaseChinesePhrase.h"

#include "AknFepUiCtrlContainerChinese.h"

#include "AknFepUICtrlCandidatePane.h"

#include "AknFepUICtrlPinyinPopup.h"

#include "AknFepUICtrlInputPane.h"

#include "AknFepUIManagerStateInterface.h"  

#include "AknFepManager.h" 

#include <AknFep.rsg>   

#include "aknfepuictrleditpane.h"           //for zhuyin phrase creation

#include "aknfepinputstateminiqwertyzhuyinkeymap.h"

#include "aknfepuiinputstateminiqwertyzhuyinphrase.h"

// Constant definition

const TInt KMinCandidateCount = 1;

const TInt KInputPaneLength = 32;

//_LIT( KDelimiter, "\x2022");

_LIT( KDelimiter, "'");

_LIT( KSaiStroke,"\x311D" );

struct TToneZhuYinMap

    {

    TUint16 iValue;

    TInt iInputTone;

    };

const TToneZhuYinMap ZhuyinToneMap[] =

    {

        {0x0020, 1},

        {0x02CA, 2},

        {0x02c7, 3},

        {0x02CB, 4},

        {0x02D9, 5}

    };

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

// AknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::

// TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase

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

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

//

TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase(

    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();

    }

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

// AknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::HandleKeyL

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

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

//

TBool TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::HandleKeyL(

    TInt aKey, TKeyPressLength aLength )

    {

    if (iOwner->FepMan()->KeyboardLayout() == EPtiKeyboardQwerty4x10 || iOwner->FepMan()->KeyboardLayout() == EPtiKeyboardQwerty3x11)

        {

        return HandleKeyForMiniQwertyL(aKey, aLength);

        }

    else

        {

        return HandleKeyForHalfAndCustomQwertyL(aKey, aLength);

        }

    }

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

// TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::ComitPhraseCreatedToEditor()

// commit the phrase created to the editor

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

//

TBool TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::ComitPhraseCreatedToEditorL()

    {

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

    if ( text.Length() )

        {

        MAknFepManagerUIInterface* fepMan = iOwner->FepMan();

        TBuf<KInputPaneLength> highText;

        UIContainer()->InputPane()->GetText( highText );

        TInt groupNum = GetInputPaneKeyStrokeCount( highText );

        TInt canidateCout = text.Length();

        if ( groupNum > canidateCout )

            {

            FillPhraseAndStrokArrayL( highText, text );

            }

        else

            {

            fepMan->NewTextL( text );

            fepMan->CommitInlineEditL();

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

            UIContainer()->EditPaneWindow()->ResetAllArray();

            UIContainer()->EditPaneWindow()->SetEffictiveLength( 0 );

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

                {

                fepMan->ClearFlag( CAknFepManager::EFlagEditorFull );

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

                }

            else

                {

                UIContainer()->EditPaneWindow()->SetChangeState(ETrue);

                iOwner->ChangeState( EPredictiveCandidate );

                }

            }

        }

    return ETrue;

    }

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

// TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::GetInputPaneKeyStrokeCount()

// get the input pane key stroke count 

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

//

TInt TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::GetInputPaneKeyStrokeCount(

    const TDesC& aBuf )

    {

    TInt groupNum = 1;

    for (TInt i = 0; i < aBuf.Length() - 1; i++ )

        {

        TInt num = sizeof(ZhuyinToneMap )/( sizeof(ZhuyinToneMap[0] ) );

        TBool isFindTone = EFalse;

        TInt isFindDel = 0;

        for (TInt m =0; m< num; m++ )

            {

            if ( aBuf[i] == ZhuyinToneMap[m].iValue )

                {

                isFindTone = ETrue;

                break;

                }

            }

        if ( !isFindTone )

            {

            isFindDel = aBuf.Mid(i,1).Compare( KDelimiter );

            }

        if ( 0 == isFindDel || isFindTone )

            {

            groupNum++;

            }

        }

    if ( 0 == aBuf.Right( 1 ).Compare( KDelimiter ) )

        {

        groupNum++;

        }

    return groupNum;

    }

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

// TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::GetIndexOfToneMark()

// get the index of the tonemark 

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

//

TInt TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::GetIndexOfToneMark( const TDesC& aText)

    {

    TInt num = sizeof(ZhuyinToneMap )/( sizeof(ZhuyinToneMap[0]));

    TInt len = aText.Length();

    for( TInt j = 0; j< len ;j++ )

        {

        for (TInt i = 0; i<num; i++ )

            {

            if ( aText[j] == ZhuyinToneMap[i].iValue )

                {

                return j;

                }

            }

        }

    return -1;

    }

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

// TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::FillPhraseAndStrokArray()

// fill the phrase and keystroke array

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

//

void TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::FillPhraseAndStrokArrayL(

    const TDesC& aText, const TDesC& aPhrase )

    {

    CDesCArrayFlat* keyStrokeArray = UIContainer()->EditPaneWindow()->KeystrokeArray();

    CDesCArrayFlat* phraseKeyStrokeArray = UIContainer()->EditPaneWindow()->PhraseShowKeyStrokeArray() ;

    CDesCArrayFlat* phraseArray = UIContainer()->EditPaneWindow()->PhraseArray();

    RArray<TInt>* keyCodeArray = UIContainer()->EditPaneWindow()->KeycodeArray();

    RArray<TInt>* keyCodePhraseArray = UIContainer()->EditPaneWindow()->PhraseKeycodeArray();

    phraseArray->AppendL( aPhrase );

    TBuf<KInputPaneLength> keyStoke;

    TInt replaceCount = 0;

    TInt delimiterIndex = aText.Find( KDelimiter );

    if ( KErrNotFound == delimiterIndex )

        {

        delimiterIndex = -1;

        }

    TInt indexOfToneMark = GetIndexOfToneMark( aText );

    if ( -1 == delimiterIndex && indexOfToneMark == -1 )

        {

        replaceCount = aText.Length();

        }

    else if ( delimiterIndex >= 0 && indexOfToneMark == -1 )

        {

        replaceCount = delimiterIndex;

        }

    else if ( delimiterIndex >= 0 && indexOfToneMark >= 0 )

        {

        replaceCount = Min( delimiterIndex, indexOfToneMark );

        if ( delimiterIndex > indexOfToneMark )

            {

            replaceCount++;

            }

        }

    else

        {

        replaceCount = indexOfToneMark + 1;// have tonemark  but has not deli

        }

    for (TInt i = 0; i < replaceCount; i++ )

        {

        TPtrC ptr = keyStrokeArray->MdcaPoint( 0 );

        keyStoke.Append( ptr );

        keyStrokeArray->Delete( 0 );

        // added for the keycode

        TInt keyCodeValue = (*keyCodeArray)[0];

        keyCodePhraseArray->AppendL( keyCodeValue );

        keyCodeArray->Remove( 0 );

        }

    phraseKeyStrokeArray->AppendL( keyStoke );   

    if ( CheckToneMarkBorderUpon()|| 0 ==keyStrokeArray->MdcaPoint( 0 ).Compare( KSaiStroke ) )

        {

        iOwner->ChangeState( EMiniQwertyEdit );

        }

    else

        {

        //change to the spelling selecting state

        iOwner->ChangeState( EZhuyinSpelling );

        }

    }

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

// TAknFepInputMiniQwertyZhuyinPhraseBase::GetValidKeystroke

// Get the valid keystroke.

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

//

TBool TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::CheckToneMarkBorderUpon()

    {

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    MAknFepUICtrlEditPane* editPane = uiContainer->EditPaneWindow();

    CDesCArrayFlat* keystroke = editPane->KeystrokeArray();

    if ( keystroke->Count() > 1 )

        {

        for ( TInt i = 1; i < keystroke->Count(); ++i )

            {

            if ( ( 1 == keystroke->MdcaPoint( i - 1 ).Length() ) &&

                ( 1 == keystroke->MdcaPoint( i ).Length() ) )

                {

                return ETrue;

                }

            }

        }

    return EFalse;

    }

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

// AknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::HandleKeyForHalfAndCustomQwertyL

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

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

//

TBool TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::HandleKeyForHalfAndCustomQwertyL(TInt aKey,

                                                                    TKeyPressLength aLength)

    {

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

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

    if (iOwner->FepMan()->FnKeyState())

        {

        return ETrue;

        }

    else if(aKey == EStdKeySpace)

        {

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

        return ETrue;

        }

    else if(aKey == EStdKeyBackspace )

        {

        iOwner->ChangeState(EEntry);

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

        return ETrue;

        }

    else if(aKey == EStdKeyUpArrow)   

        {

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

            {

            iOwner->ChangeState(EEntry);

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

            return ETrue;

            }

        else

            {

            return TAknFepInputStateCandidateQwertyBaseChinesePhrase::HandleKeyL(aKey, aLength);

            }   

        }

    else if ( aKey == EStdKeyEnter)

        {

        TBuf<MAknFepUICtrlInputPane::EMaxInputCharsPinyinPopupNotIncludingToneMark> atext;

        UIContainer()->PinyinPopupWindow()->GetItemText(

                                    UIContainer()->PinyinPopupWindow()->CurrentSelection(),

                                    atext);

        if(atext.Length())

            {            

            MAknFepManagerUIInterface* fepMan = iOwner->FepMan();

            fepMan->NewTextL(atext);

            fepMan->CommitInlineEditL();

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

            }

        return ETrue;

        }

    else if ( aKey == EStdKeyLeftArrow )

       {

       if ( selected == 0 )

          {

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

          }

       else

          {

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

          }     

       UpdateIndicator();

       return ETrue;    

       }

    else if ( aKey == EStdKeyRightArrow )

       {

        if ( selected == numbertotal - 1 )

            {

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

            }

        else

            {

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

            } 

        UpdateIndicator();

        return ETrue;       

       }

    else if ( aKey == EStdKeyDevice0 || aKey == EStdKeyDevice3 )

        {             

        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

                {

                UIContainer()->EditPaneWindow()->SetChangeState(ETrue);

                iOwner->ChangeState(EPredictiveCandidate);

                }

            }

        return ETrue;

        }   

    else

        {

        return TAknFepInputStateCandidateQwertyBaseChinesePhrase::HandleKeyL(aKey, aLength);

        } 

    }

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

// AknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::HandleKeyForMiniQwertyL

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

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

//

TBool TAknFepUiInputStateCandidateMiniQwertyZhuyinPhrase::HandleKeyForMiniQwertyL(

    TInt aKey, TKeyPressLength aLength )

    {

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

    MAknFepUICtrlEditPane* editPane = UIContainer()->EditPaneWindow();

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

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

    //  TInt isSelect = UIContainer()->CandidatePane()->SelectIndex( index, EFalse );

    if ( CAknFepFnKeyManager::EFnKeyNext == iOwner->FepMan()->FnKeyState() || 

         CAknFepFnKeyManager::EFnKeyLock == iOwner->FepMan()->FnKeyState() )

        {

        return ETrue;

        }

    else if ( aKey == EStdKeyDevice1 )

        {

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

        return ETrue;

        }

    else if ( aKey == EStdKeySpace )

        {

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

        return ETrue;

        }

    else if ( aKey == EStdKeyBackspace )

        {

        UIContainer()->EditPaneWindow()->SetChangeState( ETrue );

        iOwner->ChangeState( EEntry );

        return ETrue;

        }

    else if ( aKey == EStdKeyUpArrow )

        {

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

            {

            iOwner->ChangeState( EEntry );

            return ETrue;

            }

        else

            {

            return TAknFepInputStateCandidateQwertyBaseChinesePhrase::HandleKeyL(

                aKey, aLength );

            }

        }

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

        {

        TBool state = ETrue;

        if ( editPane->IsChangeState() && aLength == ELongKeyPress )

            {

            state = EFalse;

            }

        else

            {

            editPane->SetChangeState( EFalse );

            }

        if ( state )

            {

            return TAknFepInputStateCandidateQwertyBaseChinesePhrase::HandleKeyL(

                            aKey, aLength );

            }

        }

    else if ( aKey == EStdKeyEnter )

        {

        return ETrue;

        }

    else if ( aKey == EStdKeyLeftArrow )

        {

        if ( selected == 0 )

            {

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

            }

        else

            {

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

            }

        return ETrue;

        }

    else if ( aKey == EStdKeyRightArrow )

        {

        if ( selected == numbertotal-1 )

            {

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

            }

        else

            {

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

            }

        return ETrue;

        }

    else

        {

        TInt index = 0;

        TBool isIndex = MapKeyToIndexSelectCandidate( aKey, index );

        if ( aLength == EShortKeyPress && 

            ( ( isIndex && UIContainer()->CandidatePane()->SelectIndex( index ) ) ||

                aKey == EStdKeyDevice0 || 

                aKey == EStdKeyDevice3 ) )