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 TAknFepInputStatePredictiveCandidateQwertyZhuyinPhrase methods.

    16 *

    17 */

    18 

    19 

    20 

    21 

    22 

    23 

    24 

    25 

    26 

    27 

    28 

    29 

    30 #include "AknFepUiInputStatePredictiveCandidateQwertyZhuyinPhrase.h"

    31 #include "AknFepUIManagerStateInterface.h"  //MAknFepUIManagerStateInterface

    32 #include "AknFepManagerUIInterface.h"       //MAknFepManagerUIInterface

    33 #include "AknFepUICtrlCandidatePane.h"

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

    35 

    36 #include <PtiEngine.h>                      //CPtiEngine

    37 

    38 TAknFepInputStatePredictiveCandidateQwertyZhuyinPhrase::

    39 TAknFepInputStatePredictiveCandidateQwertyZhuyinPhrase(

    40                                 MAknFepUIManagerStateInterface* aOwner,

    41                                 MAknFepUICtrlContainerChinese* aUIContainer)

    42     :TAknFepInputStateCandidateQwertyChinesePhrase(aOwner, aUIContainer)

    43     {

    44     iState = EPredictiveCandidate;

    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 

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

    59     MAknFepUICtrlCandidatePane* candidatePane = uiContainer->CandidatePane();

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

    61     candidatePane->SelectFirstPhrase(); 

    62     

    63     TRAPD(ignore,ptiengine->GetChinesePhraseCandidatesL(*(candidatePane->CandidateArray())));

    64     if (ignore == KErrNone)

    65         {

    66         candidatePane->SplitPhraseCandidatesIntoPages(); 

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

    68         candidatePane->SetCandidateBuffer();

    69     

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

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

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

    73         TBool showHorizontalScrollArrows = multiplePages || bufLength>1;

    74     

    75         uiContainer->ShowVerticalScrollArrows(multiplePages);

    76         uiContainer->ShowHorizontalScrollArrows(showHorizontalScrollArrows);

    77         candidatePane->ShowCandidateOrdinals(EFalse);

    78         UpdateIndicator();    

    79         }

    80     }

    81 

    82 TBool TAknFepInputStatePredictiveCandidateQwertyZhuyinPhrase::HandleKeyL(TInt aKey, 

    83                                                                          TKeyPressLength aLength)

    84     {

    85     TBool ret = ETrue;

    86 

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

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

    89         {

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

    91         return  EFalse;

    92         }    

    93     if(aKey == EStdKeyBackspace)

    94         {

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

    96         }

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

    98         {

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

   100         if (fepMan->IsAbleToLaunchSCT())

   101             {

   102             fepMan->LaunchSpecialCharacterTableL();

   103             }

   104         }

   105     else if(iOwner->IsQwertyZhuyinToneMarkKey(aKey))

   106         {

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

   108         return EFalse;

   109         }

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

   111         {

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

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

   114         ptiengine->ClearCurrentWord(); 

   115         ptiengine->ResetToneMark();

   116 

   117         iOwner->ChangeState(EEntry);

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

   119         }

   120     else if (aKey == EStdKeyEnter || aKey == EStdKeySpace)

   121         {

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

   123         iOwner->ChangeState(EQwerty);

   124         return EFalse;

   125         }

   126     else if(!HandleVerticalNavigation(aKey))

   127         {

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

   129       

   130         if (aKey == EStdKeyLeftArrow )

   131             {

   132             if (candidatePane->SelectedIndex() == 0 && 

   133                 candidatePane->IsFirstPage())

   134                 {

   135                 return ETrue;    

   136                 }

   137             else

   138                 {

   139                 iOwner->ChangeState(EPredictiveInput);

   140                 return EFalse;

   141                 }

   142             }				

   143         else if (aKey == EStdKeyRightArrow)

   144             {

   145             if (candidatePane->IsLastPage() && 

   146                (candidatePane->SelectedIndex() == candidatePane->VisibleCandidateCount() - 1))

   147                 {

   148                 return ETrue;    

   149                 }

   150             else

   151                 {

   152                 iOwner->ChangeState(EPredictiveInput);

   153                 return EFalse;

   154                 }

   155             }

   156         else

   157             {

   158             ret = TAknFepInputStateCandidateQwertyChinesePhrase::HandleKeyL(aKey, aLength);

   159             }

   160         }

   161         

   162     return ret;

   163     }

   164 

   165 // End of file