/*

* 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 CAknFepUIInputStateEntryQwertyPinyinPhrase methods.

*

*/

#include "AknFepUIManagerStateInterface.h"  //MAknFepUIManagerStateInterface

#include "AknFepUiCtrlContainerChinese.h"

#include "AknFepManagerUIInterface.h"       //MAknFepManagerUIInterface

#include "AknFepUICtrlCandidatePane.h"

#include "AknFepUICtrlInputPane.h"

#include "AknFepUiInputStateEntryQwertyPinyinPhrase.h"

#include "AknFepManager.h"  

#include <PtiEngine.h>      //CPtiEngine

#include <e32keys.h>        //keys  

#include <avkon.rsg>

const TInt KInputPaneLength = 32;

_LIT(KSep, "'");

_LIT(KReplace, "");

TAknFepInputStateEntryQwertyPinyinPhrase::TAknFepInputStateEntryQwertyPinyinPhrase(

                               MAknFepUIManagerStateInterface* aOwner,

                               MAknFepUICtrlContainerChinese* aUIContainer)

    :TAknFepInputStateEntryQwertyBaseChinesePhrase(aOwner,aUIContainer)                           

    {

    iOwner->PtiEngine()->SetInputMode(EPtiEnginePinyinPhraseQwerty);

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

    }

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

    {

    CPtiEngine* ptiengine = iOwner->PtiEngine();

    TBool ret = ETrue;

    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    MAknFepUICtrlInputPane* inputPane = uiContainer->InputPane();

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

        {

        if(ptiengine->IncrementToneMark(ETrue))

            {

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

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

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

            TBool showHorizontalScrollArrows = multiplePages || bufLength>1;

            uiContainer->ShowVerticalScrollArrows(!(uiContainer->CandidatePane()->IsLastPage() &&

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

            uiContainer->ShowHorizontalScrollArrows(showHorizontalScrollArrows); 

            uiContainer->InputPane()->SetFlag(MAknFepUICtrlInputPane::EPhoneticChanged);

            SetInputPaneToneMark();

            RefreshUI();

            }

        }

    else if (iOwner->FepMan()->IsFlagSet(CAknFepManager::EFlagShiftKeyDepressed) ||

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

        {

        ret = ETrue;

        }        

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

        {

        if (!uiContainer->IsEnabled() && 

            (aKey == EPtiKeyQwertyI || aKey == EPtiKeyQwertyU || aKey == EPtiKeyQwertyV))

            {

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

            iOwner->ChangeState(EQwerty);

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

            return ret;     

            }

        TInt stringBeforeLength(0);

        TInt stringAfterLength(0);

        stringBeforeLength = ptiengine->GetPhoneticSpelling(1).Length();

        stringAfterLength = ptiengine->AppendKeyPress((TPtiKey)aKey).Length();

        if (stringBeforeLength != stringAfterLength)

            {

            if (ptiengine->GetPhoneticSpelling(1).Length() == 1)

                {

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

                }

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

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

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

            TBool showHorizontalScrollArrows = multiplePages || bufLength>1;

            uiContainer->ShowVerticalScrollArrows(!(uiContainer->CandidatePane()->IsLastPage() &&

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

            uiContainer->ShowHorizontalScrollArrows(showHorizontalScrollArrows);         

            SetInputPaneToneMark();

            uiContainer->InputPane()->SetFlag(MAknFepUICtrlInputPane::EPhoneticChanged);

            RefreshUI();

            }

        else

            {

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

            }

        if (ptiengine->GetPhoneticSpelling(1).Length() == 0)

            {

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

            }

        }

    else if(aKey == EStdKeyBackspace)

        {

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

            {

            MAknFepUICtrlInputPane* inputPane = uiContainer->InputPane();

            uiContainer->ShowVerticalScrollArrows(!(uiContainer->CandidatePane()->IsLastPage() &&

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

            SetInputPaneToneMark();

            inputPane->SetFlag(MAknFepUICtrlInputPane::EPhoneticChanged);

            RefreshUI();

            }

        else

            {

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

            if (aLength == ELongKeyPress)

                {

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

                }

            }

        }

   else if (aKey == EStdKeyEnter)

        {

        TBuf<KInputPaneLength> currentText;

        inputPane->GetText(currentText);

        while(currentText.Find(KSep)> 0)

            {

            currentText.Replace(currentText.Find(KSep), 1,KReplace);

            }

        if(currentText.Length())

            {            

            MAknFepManagerUIInterface* fepMan = iOwner->FepMan();

            fepMan->NewTextL(currentText);

            fepMan->CommitInlineEditL();

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

                {

                fepMan->ClearFlag(CAknFepManager::EFlagEditorFull);

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

                }

            else

                {

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

                }

            }

        }

    else if (aKey == EStdKeySpace)

        {

        TInt index = MapKeyToIndex(EStdKeyDevice3);

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

        TPtrC text = 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(EPredictiveInput);

                }

            }

        else

            {

            // No candidates available. Back to Entry state.

            iOwner->ChangeState(EEntry);

            }

        }

    else 

        {

        ret = TAknFepInputStateEntryQwertyBaseChinesePhrase::HandleKeyL(aKey, aLength);

        }

    return ret;

    }

// End of file