fep/aknfep/src/aknfepinputstatecandidatepinyinphrasecreation.cpp
changeset 0 eb1f2e154e89
child 3 f5a1e66df979
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fep/aknfep/src/aknfepinputstatecandidatepinyinphrasecreation.cpp	Tue Feb 02 01:02:04 2010 +0200
@@ -0,0 +1,367 @@
+/*
+* 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 aknfepinputstatecandidatepinyinphrasecreation definition.
+*
+*/
+
+
+
+
+
+
+
+
+
+
+
+
+// System includes
+#include <PtiEngine.h>   
+#include <avkon.rsg>
+#include <AknFep.rsg>
+//#include <aknquerydialog.h> //CAknQueryDialog  
+
+// User includes
+#include "aknfepinputstatecandidatepinyinphrasecreation.h"
+#include "AknFepUiCtrlContainerChinese.h"
+#include "AknFepUICtrlCandidatePane.h"
+#include "AknFepUICtrlPinyinPopup.h"        //Pinyin phrase
+#include "aknfepuictrleditpane.h"           //pinyin phrase creation
+#include "AknFepUIManagerStateInterface.h"  
+#include "AknFepManager.h"     
+
+// Constant definition
+const TInt KMinCnadidateCount = 1;
+const TInt KMaxSpellingLength = 10;
+const TInt KMaxPhraseCreationCount = 7;
+
+//add  the max phrase is seven
+_LIT( KMaxPhraseNote,"\x8BCD\x7EC4\x6700\x957F\x4E3A\x4E03\x5B57" );
+
+
+// ---------------------------------------------------------------------------
+// AknFepUiInputStateCandidatePinyinAndStrokePhrase::
+// TAknFepUiInputStateCandidatePinyinAndStrokePhrase
+// (other items were commented in a header).
+// ---------------------------------------------------------------------------
+//
+TAknFepInputStateCandidatePinyinPhraseCreation::
+    TAknFepInputStateCandidatePinyinPhraseCreation(
+        MAknFepUIManagerStateInterface* aOwner,
+        MAknFepUICtrlContainerChinese* aUIContainer) :
+        TAknFepInputStatePinyinPhraseCreationBase( aOwner, aUIContainer)
+    {
+    iState = ECandidateSelection;
+    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();
+    
+    TBool multiplePages = !(uiContainer->CandidatePane()->IsLastPage() &&
+                            uiContainer->CandidatePane()->IsFirstPage());
+    TInt bufLength = iOwner->PtiEngine()->CandidatePage().Length();
+    TBool showHorizontalScrollArrows = multiplePages || bufLength > KMinCnadidateCount;
+
+    uiContainer->ShowHorizontalScrollArrows(showHorizontalScrollArrows); 
+    uiContainer->ShowVerticalScrollArrows(ETrue);
+    uiContainer->FocusCandidatePane(ETrue);
+    uiContainer->CandidatePane()->ShowCandidateOrdinals(ETrue);
+    uiContainer->CandidatePane()->SelectFirstPhrase();
+    uiContainer->SetFepMan( iOwner->FepMan() );
+    
+    UpdateIndicator();
+    ChangeCba();
+    }
+
+// ---------------------------------------------------------------------------
+// TAknFepInputStateCandidatePinyinPhraseCreation::HandleKeyL
+// (other items were commented in a header).
+// ---------------------------------------------------------------------------
+//
+TBool TAknFepInputStateCandidatePinyinPhraseCreation::HandleKeyL(TInt aKey,
+                                                                 TKeyPressLength aLength)
+    {
+    switch( aKey )
+        {
+        case EKeyBackspace:
+            KeyBackspace();
+            break;
+        case EKeyCBA2:
+            iOwner->FepMan()->TryCloseUiL();
+            break;
+        default:
+            HandleKeyUpDownLeftRightArrowOrKeyCBA1OKL( aKey, aLength );
+            break;
+        }
+    return ETrue;
+    }
+
+// ---------------------------------------------------------
+// Update indicator.
+// ---------------------------------------------------------
+//
+void TAknFepInputStateCandidatePinyinPhraseCreation::UpdateIndicator()
+    {
+    MAknFepUICtrlContainerChinese* uiContainer = UIContainer();        
+    MAknFepUICtrlCandidatePane* candidatePane = uiContainer->CandidatePane();
+        
+    if (candidatePane->IsFirstPage())
+        {
+        uiContainer->CandidatePane()->ShowUpScrollArrows(EFalse);    
+        }
+    else
+        {
+        uiContainer->CandidatePane()->ShowUpScrollArrows(ETrue);    
+        }
+    if ( candidatePane->IsLastPage() )
+       {
+       uiContainer->CandidatePane()->ShowDownScrollArrows(EFalse);
+       }
+    else
+       {
+       uiContainer->CandidatePane()->ShowDownScrollArrows(ETrue);      
+       }
+    }
+
+// ---------------------------------------------------------
+// Handle horizontal navigation.
+// ---------------------------------------------------------
+//
+TBool TAknFepInputStateCandidatePinyinPhraseCreation::HandleHorizontalNavigation(TInt aKey)
+    {
+    MAknFepUICtrlCandidatePane* candidatePane = UIContainer()->CandidatePane();
+    TBool response = EFalse;
+
+    // Do navigation...
+    if (aKey == EKeyLeftArrow)
+        {
+        if( !candidatePane->SelectPrev() )
+            {
+            candidatePane->SetCandidateBuffer();
+            candidatePane->SelectLastPhrase();
+            }
+        response = ETrue;
+        }
+    else if (aKey == EKeyRightArrow)
+        {                  
+        if( !candidatePane->SelectNext() )
+            {
+            candidatePane->SetCandidateBuffer();
+            candidatePane->SelectFirstPhrase();
+            }
+        response = ETrue;
+        }
+        
+    if (response)
+        {
+        UpdateIndicator();
+        }   
+             
+    return response;
+    }
+
+// ---------------------------------------------------------
+// Handle vertical navigation.
+// ---------------------------------------------------------
+//
+TBool TAknFepInputStateCandidatePinyinPhraseCreation::HandleVerticalNavigation(TInt aKey)
+    {
+    MAknFepUICtrlCandidatePane* candidatePane = UIContainer()->CandidatePane();
+
+    if (aKey == EKeyDownArrow)
+        {
+        if (candidatePane->IsLastPage())
+            {
+            return ETrue;
+            }                
+        candidatePane->NextCandidatePage();
+        }
+    else if (aKey == EKeyUpArrow)
+        {
+        if (candidatePane->IsFirstPage() )
+            {
+            return ETrue;   
+            }       
+        candidatePane->PreviousCandidatePage();
+        }
+    else
+        {
+        return EFalse;
+        }
+    candidatePane->SetCandidateBuffer();
+    candidatePane->SelectFirstPhrase();
+    UpdateIndicator(); 
+
+    return ETrue;
+    }
+
+// ---------------------------------------------------------
+// Commit inline to the EEP ctrl.
+// ---------------------------------------------------------
+//
+TBool TAknFepInputStateCandidatePinyinPhraseCreation::CommitInlineEEPL( const TDesC& aText )
+    {
+    MAknFepUICtrlPinyinPopup* popup = UIContainer()->PinyinPopupWindow();
+    CDesCArrayFlat* keystrokeArray = popup->ShowKeystrokeArray();
+    CDesCArrayFlat* validKeystroke = popup->InEffectKeystrokeArray();
+    CDesCArrayFlat* chooseChineseCharacterArray = 
+        popup->ChooseChineseCharacterArray();
+    CDesCArrayFlat* chooseChineseCharacterArrayKeystroke = 
+        popup->ChooseChineseCharacterArrayKeystroke();
+    TInt keyCount = validKeystroke->Count();
+    
+    TBuf<KMaxSpellingLength> keystroke;
+    
+    popup->SetPhraseCreationState( ETrue );
+    
+    for ( TInt i = 0; i < keyCount; i++ )
+        {
+        keystroke.Append( keystrokeArray->MdcaPoint( 0 ) );
+        keystrokeArray->Delete( 0 );
+        }
+    
+    chooseChineseCharacterArray->AppendL( aText );
+    chooseChineseCharacterArrayKeystroke->AppendL( keystroke );
+    validKeystroke->Reset();
+    
+    if ( chooseChineseCharacterArray->Count() >= KMaxPhraseCreationCount )
+        {
+        keystrokeArray->Reset();
+        CDesCArrayFlat* phraseCandidates = 
+            UIContainer()->CandidatePane()->CandidateArray();
+        phraseCandidates->Reset();
+        phraseCandidates->AppendL( KMaxPhraseNote );
+        RefreshUI( 0 );
+        return EFalse;
+        }  
+    return keystrokeArray->Count();
+    }
+
+// ---------------------------------------------------------
+// KeyBackspace.
+// ---------------------------------------------------------
+//
+void TAknFepInputStateCandidatePinyinPhraseCreation::KeyBackspace()
+    {
+    MAknFepUICtrlPinyinPopup* popup = UIContainer()->PinyinPopupWindow();
+    // there is  "ChangeCba()" before 
+    popup->SetChangeState( ETrue );
+    iOwner->ChangeState(ESpellingSelection);
+    }
+
+// ---------------------------------------------------------
+// Key Up,Down,Left,RightArrow Or Key CBA1,OK.
+// ---------------------------------------------------------
+//
+void TAknFepInputStateCandidatePinyinPhraseCreation::HandleKeyUpDownLeftRightArrowOrKeyCBA1OKL( 
+                                     TInt aKey, 
+                                     TKeyPressLength aLength )
+    {
+    MAknFepUICtrlPinyinPopup* popup = UIContainer()->PinyinPopupWindow();
+    MAknFepUICtrlCandidatePane* candidatePane = UIContainer()->CandidatePane();
+    TInt index = MapKeyToIndex(aKey);
+           
+    if ( aKey == EKeyUpArrow &&
+        iOwner->FepMan()->InputMode() == EPinyin &&
+        candidatePane->IsFirstPage())
+        {
+        popup->SetChangeState( ETrue );
+        iOwner->ChangeState(ESpellingSelection);
+        return;
+        }
+    TBool state = ETrue;
+    if ( popup->IsChangeStatet() && aLength == ELongKeyPress )
+        {
+        state = EFalse;
+        }
+    else
+        {
+        popup->SetChangeState( EFalse );
+        }
+    
+    if ( state )
+       {
+       if ( !(HandleVerticalNavigation( aKey )
+           || HandleHorizontalNavigation( aKey ) ) )
+         {
+              // it may be one of the 'valid' numbers..
+           if ( candidatePane->SelectIndex( index, EFalse ) || aKey == EKeyOK
+               || aKey == EKeyCBA1 )
+              {
+               ChangeStateOrNotL(); 
+              }
+           ChangeCba();
+          }
+       }
+    }
+   
+// ---------------------------------------------------------
+// change the state or not 
+// ---------------------------------------------------------
+//
+void TAknFepInputStateCandidatePinyinPhraseCreation::ChangeStateOrNotL()
+	{
+	 MAknFepUICtrlPinyinPopup* popup = UIContainer()->PinyinPopupWindow();
+	 MAknFepUICtrlCandidatePane* candidatePane = UIContainer()->CandidatePane();
+    TPtrC text = candidatePane->CurrentPhraseCandidate();
+    if ( text.Length() )
+        {
+        CDesCArrayFlat* chooseChineseCharacterArray =
+            popup->ChooseChineseCharacterArray();
+        //here need Commit text to EEP and change 
+        //state to EEP entry state if keystroke is empty
+        //else keep spelling state 
+        if ( chooseChineseCharacterArray->Count() < KMaxPhraseCreationCount )
+            {
+            if ( !CommitInlineEEPL( text ) )
+                {
+                popup->SetChangeState( ETrue );
+                iOwner->ChangeState( EKeySequenceEdit );
+                TBool visible =
+                    ( chooseChineseCharacterArray->Count() == KMaxPhraseCreationCount );
+                UIContainer()->SetControlInVisible( visible );
+                }
+            else
+                {
+                if ( !popup->IsEnabled() )
+                    {
+                    popup->Enable( ETrue );
+                    }
+                if ( !GetValidKeystroke() )
+                    {
+                    UIContainer()->SetControlInVisible( EFalse );
+                    popup->SetChangeState( ETrue );
+                    iOwner->ChangeState( EKeySequenceEdit );
+                    }
+                else
+                    {
+                    popup->SetChangeState( ETrue );
+                    iOwner->ChangeState( ESpellingSelection );
+                    }
+                }
+            }
+        else
+            {
+            popup->SetChangeState( ETrue );
+            iOwner->ChangeState( EKeySequenceEdit );
+            }
+        }
+    else
+        {
+        // No candidates available. Back to Entry state.
+        popup->SetChangeState( ETrue );
+        iOwner->ChangeState( EKeySequenceEdit );
+        }
+    }
+
+
+// End of file