/*

* Copyright (c) 2008 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 TAknFepInputStateEntryPinyinPhraseCreation methods.

 *

*/

#include <PtiEngine.h>                          //CPtiEngine

#include <PtiUserDicEntry.h>

#include <PtiDefs.h>                            //keys

#include <avkon.rsg>

#include <AknFep.rsg>

#include <aknnotewrappers.h>

#include "AknFepPanic.h"

#include "aknfepuiinputstateentrypinyinphrasecreation.h"

#include "AknFepUIManagerStateInterface.h"      //MAknFepUIManagerStateInterface

#include "AknFepManagerUIInterface.h"           //MAknFepManagerUIInterface

#include "AknFepUiCtrlContainerChinese.h"

#include "AknFepUICtrlInputPane.h"

#include "AknFepUICtrlCandidatePane.h"

#include "AknFepUICtrlPinyinPopup.h"    //Pinyin phrase

#include "aknfepuictrleditpane.h"           //pinyin phrase creation

#include "AknFepManager.h"

const TInt KMaxPhraseCreationCount = 7;

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

// C++ construct.

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

//

TAknFepInputStateEntryPinyinPhraseCreation::TAknFepInputStateEntryPinyinPhraseCreation(

    MAknFepUIManagerStateInterface* aOwner,

    MAknFepUICtrlContainerChinese* aUIContainer ) :

    TAknFepInputStatePinyinPhraseCreationBase( aOwner, aUIContainer)

    {

    iState = EKeySequenceEdit;

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    uiContainer->FocusCandidatePane( EFalse );

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

    uiContainer->SetLayout( MAknFepUICtrlContainerChinese::ELayoutPhraseCreation );

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

    uiContainer->ShowVerticalScrollArrows( ETrue );

    uiContainer->ShowHorizontalScrollArrows( EFalse );

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

    uiContainer->PinyinPopupWindow()->SetPhraseCreationEditingState( EFalse );

    // in the case that we are coming back to the input pane from the candidate pane, 

    // we need to ensure that the current selection is selected correctly

    if ( uiContainer->PinyinPopupWindow()->GetFromEditToSpellingFlag() )

        {

        uiContainer->PinyinPopupWindow()->SetFromEditToSpellingFlag();

        TInt validCount = uiContainer-> 

            PinyinPopupWindow()->InEffectKeystrokeArray()->Count();

        uiContainer->EditPaneWindow()->SetCursorIndexOfKeystroke( validCount );

        ShowInfo();        

        uiContainer->PinyinPopupWindow()->SetNoneHighlighted();

        uiContainer->EditPaneWindow()->ActiveCursor();

        uiContainer->EditPaneWindow()->EnableCursor();

        }

    else

        {

        ImplicityShowInfo( ETrue );    

        }

    // however we also need to clear the deliberate selection, in case we are not

    // coming back to the input pane from the candidate pane

    ChangeCba();

    }

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

// HandleKeyL

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

// 

TBool TAknFepInputStateEntryPinyinPhraseCreation::HandleKeyL( TInt aKey,

    TKeyPressLength aLength )

    {

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    MAknFepUICtrlPinyinPopup* popup = uiContainer->PinyinPopupWindow();

    CDesCArrayFlat* inEffectKeystrokeArray = popup->InEffectKeystrokeArray();

    CDesCArrayFlat* showKeystrokeArray = popup->ShowKeystrokeArray();

    switch( aKey )

        {

        case EKeyBackspace:

            {

            TBool state = ETrue;

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

                {

                state = EFalse;

                }

            else

                {

                popup->SetChangeState( EFalse );

                }

            if ( state )

                {

                HandleKeyBackspace( aLength );

                }

            break;

            }

        case EKeyRightArrow:

            if ( !IsMoveCursor() )

                {

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

                }

            else

                {

                MoveCursorToRight();

                }

            break;

        case EKeyLeftArrow:

            if ( !IsMoveCursor() )

                {

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

                }

            else

                {

                MoveCursorToLeft();

                }

            break;

        case EKeyOK:

        case EKeyCBA1:

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

                {

                popup->SetChangeState( EFalse );

                HandleKeyOKAndKeyCBA1L();

                }

           break;

        case EKeyCBA2:

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

            break;

        case EKeyDownArrow:

            if ( ( 0 == showKeystrokeArray->Count() ) ||

                ( 0 == inEffectKeystrokeArray->Count() ) )

                {

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

                }

            else

                {

                popup->SetChangeState( ETrue );

                popup->SetFromEditToSpellingFlag( ETrue );

                iOwner->ChangeState( ESpellingSelection );

                }

            break;

        case EKeyUpArrow:

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

            break;

        default:

            if ( EShortKeyPress == aLength )

                {

                HandleOthersKey( aKey );

                }

            else

                {

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

                }

            break;

        }

    return ETrue;

    }

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

// Init the show info

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

//

void TAknFepInputStateEntryPinyinPhraseCreation::ImplicityShowInfo( 

                                                   TBool aGetScreenCoordinates )

    {

    TRAP_IGNORE( ImplicityShowInfoL( aGetScreenCoordinates ) );

    }

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

// Init the show info

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

//

void TAknFepInputStateEntryPinyinPhraseCreation::ImplicityShowInfoL( 

                                                   TBool aGetScreenCoordinates )

    {

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    MAknFepUICtrlPinyinPopup* popup = uiContainer->PinyinPopupWindow();

    MAknFepUICtrlEditPane* editPane = uiContainer->EditPaneWindow();

    TInt showKeystrokeCount = popup->ShowKeystrokeArray()->Count();

    TInt chineseCount = popup->ChooseChineseCharacterArray()->Count();

    // get cursor position

    TPoint baseLine = TPoint( 0, 0 );

    TInt height = 0;

    TInt ascent = 0;

    TBool validChange = EFalse;

    TBool isSpellingValid = EFalse;

    if ( aGetScreenCoordinates )

        {

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

        uiContainer->SetContainerPosition( baseLine, height );

        }

    if ( popup->GetPhraseCreationEditingState() )

        {

        isSpellingValid = GetValidKeystroke();

        }    

    else if ( popup->GetPhraseCreationState() )

        {

        isSpellingValid = GetValidKeystroke();

        if ( 0 == chineseCount )

            {

            editPane->SetCursorIndexOfKeystroke( showKeystrokeCount );

            }

        else

            {

            editPane->SetCursorIndexOfKeystroke( 0 );

            }

        }

    if ( !isSpellingValid )

        {

        UIContainer()->SetControlInVisible( EFalse );

        }

    validChange = popup->GetValidKeystrokeChange();

    ShowInfo();

    SetWarningColor();

    editPane->ActiveCursor();

    if ( ( popup->GetPhraseCreationState() ) || 

        ( popup->GetPhraseCreationEditingState() ) )

        {

        if ( validChange || 

            ( 0 != popup->CurrentPageStartIndex() ) )

            {

            popup->SetPhraseCreationEditingState( EFalse );

            popup->SetPhraseCreationState( EFalse );

            RefreshUI();

            }

        else

            {

            if ( 0 != popup->CurrentSelection() )

                {

                RefreshCandidate();

                }

            }

        }

    else

        {

        if ( validChange )

            {

            RefreshUI( popup->CurrentSelection() );

            }

        }

    }

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

// EKeyBackspace

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

//

void TAknFepInputStateEntryPinyinPhraseCreation::HandleKeyBackspace( TKeyPressLength aLength )

    {

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    MAknFepUICtrlPinyinPopup* popup = uiContainer->PinyinPopupWindow();

    MAknFepUICtrlEditPane* editPane = uiContainer->EditPaneWindow();

    TInt validKeystrokeCount = popup->InEffectKeystrokeArray()->Count();

    TInt chineseCount = popup->ChooseChineseCharacterArray()->Count();

    TInt cursorOfkeystrokeIndex = editPane->GetCursorIndexOfKeystroke();

    if ( 0 == cursorOfkeystrokeIndex )

        {

        if ( !TryCloseUI( aLength ) )

            {

            if ( ( 0 == chineseCount ) && ( 0 != validKeystrokeCount ) )

                {

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

                }

            else

                {

                if ( ChineseRevertKeystroke() )

                    {

                    ClearDeliberateSelection();

                    popup->SetPhraseCreationEditingState( ETrue );

                    ImplicityShowInfo();

                    ChangeCba();

                    }

                else

                    {

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

                    }               

                }

            }        

        }

    else

        {

        if ( 1 == cursorOfkeystrokeIndex )

            {

            editPane->Reset();

            editPane->SetCursorIndexOfKeystroke( 1 );

            }

        //delete the current keystroke

        if ( DeleteCurrentKeystroke() )

            {

            if ( !TryCloseUI( aLength ) )

                {

                ClearDeliberateSelection();

                popup->SetPhraseCreationEditingState( ETrue );

                ImplicityShowInfo();

                ChangeCba();

                }

            }

        else

            {

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

            }            

        }  

    }

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

// EKeyOK And EKeyCBA1L.

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

//

void TAknFepInputStateEntryPinyinPhraseCreation::HandleKeyOKAndKeyCBA1L()

    {

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    MAknFepUICtrlPinyinPopup* popup = uiContainer->PinyinPopupWindow();

    TInt validKeystrokeCount = popup->InEffectKeystrokeArray()->Count();

    TInt keystrokeCount = popup->ShowKeystrokeArray()->Count();

    CDesCArrayFlat* chinese = popup->ChooseChineseCharacterArray();

    TBuf<KMaxPhraseCreationCount> phraseCreated;

    if ( ( chinese->Count() >= 2 ) && ( 0 == keystrokeCount ) )

        {

        //commit the chinese character.

        MAknFepManagerUIInterface* fepMan = iOwner->FepMan();

        for (TInt i = 0; i < chinese->Count(); ++i )

            {

            phraseCreated.Append( chinese->MdcaPoint( i ) );

            }

        fepMan->PinyinPhraseCreation( EFalse );

        fepMan->NewTextL( phraseCreated );

        fepMan->CommitInlineEditL();

        iOwner->FepMan()->TryCloseUiL(); //no more keys, close the UI.

        }

    else if ( 0 != validKeystrokeCount )

        {

        popup->SetChangeState( ETrue );

        popup->SetFromEditToSpellingFlag( ETrue );

        iOwner->ChangeState( ESpellingSelection );

        }

    else

        {

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

        }

    }

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

// others key input.

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

//

void TAknFepInputStateEntryPinyinPhraseCreation::HandleOthersKey( TInt aKey )

    {

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    MAknFepUICtrlPinyinPopup* popup = uiContainer->PinyinPopupWindow();

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

    if ( iOwner->IsValidChineseInputKey( aKey ) )

        {

        if ( AddKeystroke( aKey ) )

            {

            ClearDeliberateSelection();

            popup->SetPhraseCreationEditingState( ETrue );

            ImplicityShowInfo();

            ChangeCba();

            }

        else

            {

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

            }

        }

    else if ( aKey == EPtiKeyStar ) // we increment the tone mark.

        {

        if ( AddToneMark() )

            {

            ClearDeliberateSelection();

            popup->SetPhraseCreationEditingState( ETrue );

            ImplicityShowInfo();

            ChangeCba();

            }

        else

            {

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

            }            

        }

    else

        {

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

        }

    }

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

// move cursor to left.

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

//

TBool TAknFepInputStateEntryPinyinPhraseCreation::IsMoveCursor()

    {

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    MAknFepUICtrlPinyinPopup* popup = uiContainer->PinyinPopupWindow();

    TInt keystrokeCount = popup->ShowKeystrokeArray()->Count();

    TInt chineseCount = popup->ChooseChineseCharacterArray()->Count();

    if ( ( 0 == keystrokeCount ) || ( KMaxPhraseCreationCount == chineseCount ) )

        {

        return EFalse;

        }

    return ETrue;

    }

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

// move cursor to left.

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

//

void TAknFepInputStateEntryPinyinPhraseCreation::MoveCursorToLeft()

    {

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    MAknFepUICtrlPinyinPopup* popup = uiContainer->PinyinPopupWindow();

    MAknFepUICtrlEditPane* editPane = uiContainer->EditPaneWindow();

    TInt keystrokeCount = popup->ShowKeystrokeArray()->Count();

    TInt indexOfKeystroke = editPane->GetCursorIndexOfKeystroke();

    if ( 0 == indexOfKeystroke )

        {

        editPane->SetCursorIndexOfKeystroke( keystrokeCount );

        // for fix bug when press left, spelling pane will flash

        // ImplicityShowInfo();

        ShowInfo();

        SetWarningColor();

        }

    else if ( 1 == indexOfKeystroke )

        {

        editPane->SetCursorIndexOfKeystroke( 0 );

        // for fix bug when press left, spelling pane will flash

        // ImplicityShowInfo();

        ShowInfo();

        SetWarningColor();

        }

    else

        {

        editPane->SetCursorIndexOfKeystroke( indexOfKeystroke - 1 );

        editPane->MoveCursorLeft();

        }

    }

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

// move cursor to left.

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

//

void TAknFepInputStateEntryPinyinPhraseCreation::MoveCursorToRight()

    {

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    MAknFepUICtrlPinyinPopup* popup = uiContainer->PinyinPopupWindow();

    MAknFepUICtrlEditPane* editPane = uiContainer->EditPaneWindow();

    TInt keystrokeCount = popup->ShowKeystrokeArray()->Count();

    TInt indexOfKeystroke = editPane->GetCursorIndexOfKeystroke();

    if ( indexOfKeystroke == keystrokeCount )

        {

        editPane->SetCursorIndexOfKeystroke( 0 );

        // for fix bug when press right, spelling pane will flash

        // ImplicityShowInfo();

        ShowInfo();

        SetWarningColor();

        }

    else

        {

        editPane->SetCursorIndexOfKeystroke( indexOfKeystroke + 1 );

        editPane->MoveCursorRight();

        }

    }