1 /*

     2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0""

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:           

    15 *       Provides the TAknFepInputStatePredictiveInputQwerty methods.

    16 *

    17 */

    18 

    19 

    20 

    21 

    22 

    23 

    24 

    25 

    26 

    27 

    28 

    29 

    30 #include "AknFepUiInputStatePredictiveInputQwertyPinyin.h"

    31 #include "AknFepUICtrlCandidatePane.h"

    32 #include "AknFepUiCtrlContainerChinese.h"

    33 #include "AknFepUIManagerStateInterface.h"  //MAknFepUIManagerStateInterface

    34 #include "AknFepManagerUIInterface.h"       //MAknFepManagerUIInterface

    35 #include "AknFepManager.h"                  //FepMan flag

    36 

    37 #include <PtiEngine.h>                      //CPtiEngine

    38 

    39 TAknFepInputStatePredictiveInputQwertyPinyin::TAknFepInputStatePredictiveInputQwertyPinyin(

    40                                 MAknFepUIManagerStateInterface* aOwner,

    41                                 MAknFepUICtrlContainerChinese* aUIContainer)

    42     :TAknFepInputStateCandidateQwertyChineseBase(aOwner, aUIContainer)

    43     {

    44     iState = EPredictiveInput;

    45     

    46     MAknFepUICtrlContainerChinese* uiContainer = UIContainer();

    47     // set container window position to follow cursor

    48     TPoint baseLine = TPoint(0,0);

    49     TInt height = 0;

    50     TInt ascent = 0;

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

    52     if (ret == KErrNone)

    53         {

    54         uiContainer->SetContainerPosition(baseLine, height);    

    55         }

    56     uiContainer->FocusCandidatePane(ETrue);

    57     uiContainer->SetLayout(MAknFepUICtrlContainerChinese::ELayoutCandidate);

    58 

    59     CPtiEngine* ptiengine = iOwner->PtiEngine();

    60     ptiengine->SetCandidatePageLength(MAknFepUICtrlContainerChinese::ELayoutInput);

    61 

    62     // for some reason needs to feed back to ptiengine current Chinese char just before get the prediction

    63     TPtrC text = uiContainer->CandidatePane()->CurrentCandidate();

    64     uiContainer->CandidatePane()->SelectFirst(); 

    65     ptiengine->SetPredictiveChineseChar(text);

    66     uiContainer->CandidatePane()->SetCandidateBuffer(ptiengine->CandidatePage());

    67 

    68     TBool multiplePages = ptiengine->MoreCandidatePages();

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

    70     TBool showHorizontalScrollArrows = multiplePages || bufLength>1;

    71     

    72     uiContainer->ShowVerticalScrollArrows(multiplePages);

    73     uiContainer->ShowHorizontalScrollArrows(showHorizontalScrollArrows);

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

    75     UpdateIndicator();

    76     }

    77 

    78 TBool TAknFepInputStatePredictiveInputQwertyPinyin::HandleKeyL(TInt aKey, TKeyPressLength aLength)

    79     {

    80     TBool ret = ETrue;

    81     if (iOwner->FepMan()->IsFlagSet(CAknFepManager::EFlagQwertyShiftMode) ||

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

    83         {

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

    85         ret = EFalse;

    86         }

    87     else if (IsValidEntryKey(aKey))

    88         {

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

    90         ret = EFalse;

    91         }

    92     else if(aKey == EStdKeyBackspace)

    93         {

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

    95         }

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

    97         {

    98         MAknFepManagerUIInterface* fepMan = iOwner->FepMan();

    99         if (fepMan->IsAbleToLaunchSCT())

   100             {

   101             fepMan->LaunchSpecialCharacterTableL();

   102             }

   103         }

   104     else if(iOwner->IsValidChineseInputKeyQwerty(aKey))

   105         {

   106         if (IsValidPinyinKey(aKey))

   107             {

   108             CPtiEngine* ptiengine = iOwner->PtiEngine();

   109             // it is needed when we use phrase input engine, otherwise it seems not cleared

   110             ptiengine->ClearCurrentWord(); 

   111             ptiengine->ResetToneMark();

   112 

   113             iOwner->ChangeState(EEntry);

   114             ret = EFalse; //passes to entry state to handle the key

   115             }

   116         }

   117     else 

   118         {

   119         ret = TAknFepInputStateCandidateQwertyChineseBase::HandleKeyL(aKey, aLength);

   120         }

   121     return ret;

   122     }

   123 

   124 TBool  TAknFepInputStatePredictiveInputQwertyPinyin::IsValidPinyinKey(TInt aKey)

   125     {

   126     TBool response = ETrue;

   127 

   128     if (aKey == EPtiKeyQwertyU || aKey == EPtiKeyQwertyV ||

   129         aKey == EPtiKeyQwertyI )

   130         {

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

   132         response = EFalse;

   133         }

   134 

   135     return response;

   136     }

   137     

   138 TBool  TAknFepInputStatePredictiveInputQwertyPinyin::IsValidEntryKey(TInt aKey)

   139     {

   140     TBool response = ETrue;

   141 

   142     if ((aKey >= EPtiKeyQwertyA && aKey <= EPtiKeyQwertyZ) ||

   143         (aKey >= EStdKeyLeftArrow && aKey <= EStdKeyDownArrow) ||

   144         (aKey >= EPtiKeyQwerty0 && aKey <= EPtiKeyQwerty9) ||

   145          aKey == EStdKeyBackspace || aKey == EStdKeyLeftFunc ||

   146          aKey == EStdKeyDevice1)

   147         {

   148         response = EFalse;

   149         }

   150 

   151     return response;

   152     }    

   153 

   154 // End of file