fep/aknfep/src/AknFepUiInputStateEntryQwertyStrokePhrase.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:02:04 +0200
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/*
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* Copyright (c) 2002-2005 Nokia Corporation and/or its subsidiary(-ies). 
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0""
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:            Implementation of Stroke phrase Qwerty entry state
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*
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*/
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// System includes
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#include <PtiEngine.h>
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// User includes
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#include "AknFepUiInputStateEntryQwertyStrokePhrase.h"
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#include "AknFepUIManagerStateInterface.h"
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#include "AknFepUICtrlInputPane.h"
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#include "AknFepUICtrlCandidatePane.h"
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#include "AknFepManagerUIInterface.h"      
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#include "AknFepManager.h"                 
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// Constant definition
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const TInt KMinCnadidateCount = 1;
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const TInt KEnginePhoneticIndex = 1;
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// ---------------------------------------------------------------------------
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// TAknFepInputStateEntryQwertyStrokePhrase::
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// TAknFepInputStateEntryQwertyStrokePhrase
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// (other items were commented in a header).
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// ---------------------------------------------------------------------------
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//
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TAknFepInputStateEntryQwertyStrokePhrase::TAknFepInputStateEntryQwertyStrokePhrase(
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    MAknFepUIManagerStateInterface* aOwner,
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    MAknFepUICtrlContainerChinese* aUIContainer)
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    :TAknFepInputStateEntryQwertyBaseChinesePhrase(aOwner, aUIContainer)
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    {
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    UIContainer()->CandidatePane()->ShowCandidateOrdinals(ETrue);
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    if (EPtiEngineStrokePhraseQwerty != iOwner->PtiEngine()->InputMode())
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        {
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        iOwner->PtiEngine()->SetInputMode(EPtiEngineStrokePhraseQwerty);
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        }
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    iOwner->PtiEngine()->SetCase(EPtiCaseLower);
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    }
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// ---------------------------------------------------------------------------
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// TAknFepInputStateEntryQwertyStrokePhrase::HandleKeyL
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// (other items were commented in a header).
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// ---------------------------------------------------------------------------
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//
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TBool TAknFepInputStateEntryQwertyStrokePhrase::HandleKeyL(TInt aKey, 
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                                                           TKeyPressLength aLength)
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    {
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    CPtiEngine* ptiengine = iOwner->PtiEngine();
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    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();
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    MAknFepUICtrlInputPane* inputPane = uiContainer->InputPane();
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    TBool ret = ETrue;
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    if (iOwner->FepMan()->IsFlagSet(CAknFepManager::EFlagShiftKeyDepressed) ||
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             iOwner->FepMan()->IsFlagSet(CAknFepManager::EFlagQwertyChrKeyDepressed))
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        {
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        ret = ETrue;
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        } 
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    else if((aLength == EShortKeyPress) && iOwner->IsValidChineseInputKeyQwerty(aKey))
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        {
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        TInt stringBeforeLength(0);
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        TInt stringAfterLength(0);
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        stringBeforeLength = ptiengine->GetPhoneticSpelling(KEnginePhoneticIndex).Length();
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        stringAfterLength = ptiengine->AppendKeyPress((TPtiKey)aKey).Length();
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        if (stringBeforeLength != stringAfterLength)
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            {
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            RefreshUI();
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            }
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        else
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            {
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            iOwner->FepMan()->PlaySound(EAvkonSIDErrorTone);
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            }            
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        }
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    else if(aKey == EStdKeyBackspace)
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        {
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        if (iOwner->PtiEngine()->DeleteKeyPress().Length())
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            {
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            RefreshUI();
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            }
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        else
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            {
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            iOwner->FepMan()->TryCloseUiL();
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            if (aLength == ELongKeyPress)
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                {
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                iOwner->FepMan()->SetLongClearAfterCloseUI(ETrue);
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                }
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            }
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        }
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   else if (aKey == EStdKeyEnter)
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        {
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        return ret;
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        }
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    else
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        { 
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        ret = TAknFepInputStateEntryQwertyBaseChinesePhrase::HandleKeyL(aKey, aLength);
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        }
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    return ret;
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    }
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// ---------------------------------------------------------------------------
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// TAknFepInputStateEntryQwertyStrokePhrase::RefreshUI
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// (other items were commented in a header).
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// ---------------------------------------------------------------------------
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//
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void TAknFepInputStateEntryQwertyStrokePhrase::RefreshUI()
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    {
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    CPtiEngine* ptiengine = iOwner->PtiEngine();
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    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();
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    MAknFepUICtrlInputPane* inputPane = uiContainer->InputPane();
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    // get cursor position
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    TPoint baseLine;
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    TInt height(0);
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    TInt ascent(0);
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    TRAPD(ret,iOwner->FepMan()->GetScreenCoordinatesL(baseLine,height,ascent));
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    if (ret == KErrNone)
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        {
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        uiContainer->SetContainerPosition(baseLine, height);
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        }
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    // layout candidate and fill candidate buffer for first display page
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    TInt candidateCount(0);
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    TRAP(ret,
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         candidateCount = ptiengine->GetChinesePhraseCandidatesL(
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               *(uiContainer->CandidatePane()->CandidateArray())));
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    if(candidateCount == 0 || ret != KErrNone)
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        {
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        return;
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        }  
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    uiContainer->CandidatePane()->SplitPhraseCandidatesIntoPages();
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    uiContainer->CandidatePane()->SetCandidateBuffer(); 
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    TBool multiplePages = !(uiContainer->CandidatePane()->IsLastPage() &&
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                            uiContainer->CandidatePane()->IsFirstPage());
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    TInt bufLength = ptiengine->CandidatePage().Length();
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    TBool showHorizontalScrollArrows = multiplePages || bufLength > KMinCnadidateCount;
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    uiContainer->ShowHorizontalScrollArrows(showHorizontalScrollArrows);
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    uiContainer->ShowVerticalScrollArrows(multiplePages);
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    uiContainer->Enable(ETrue);
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    uiContainer->CandidatePane()->SelectFirstPhrase();
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    TPtrC ptr = ptiengine->GetPhoneticSpelling(KEnginePhoneticIndex);
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    inputPane->SetText(ptr);
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    UpdateIndicator();
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    }
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// End of file