HRESULT COVTSF::_HandleCompositionBackspace(TfEditCookie ec, _In_ ITfContext *pContext)
{
ITfRange* pRangeComposition = nullptr;
TF_SELECTION tfSelection;
ULONG fetched = 0;
BOOL isCovered = TRUE;
// Start the new (std::nothrow) compositon if there is no composition.
if (!_IsComposing())
{
return S_OK;
}
// first, test where a keystroke would go in the document if we did an insert
if (FAILED(pContext->GetSelection(ec, TF_DEFAULT_SELECTION, 1, &tfSelection, &fetched)) || fetched != 1)
{
return S_FALSE;
}
// is the insertion point covered by a composition?
if (SUCCEEDED(_pComposition->GetRange(&pRangeComposition)))
{
isCovered = _IsRangeCovered(ec, tfSelection.range, pRangeComposition);
pRangeComposition->Release();
if (!isCovered)
{
goto Exit;
}
}
//
// Add virtual key to composition processor engine
//
CCompositionProcessorEngine* pCompositionProcessorEngine = nullptr;
pCompositionProcessorEngine = _pCompositionProcessorEngine;
DWORD_PTR vKeyLen = pCompositionProcessorEngine->GetVirtualKeyLength();
if (vKeyLen)
{
pCompositionProcessorEngine->RemoveVirtualKey(vKeyLen - 1);
if (pCompositionProcessorEngine->GetVirtualKeyLength())
{
_HandleCompositionInputWorker(pCompositionProcessorEngine, ec, pContext);
}
else
{
_HandleCancel(ec, pContext);
}
}
Exit:
tfSelection.range->Release();
return S_OK;
}
HRESULT COVTSF::_HandleCompositionFinalize(TfEditCookie ec, _In_ ITfContext *pContext, BOOL isCandidateList)
{
HRESULT hr = S_OK;
if (isCandidateList && _pCandidateListUIPresenter)
{
// Finalize selected candidate string from CCandidateListUIPresenter
DWORD_PTR candidateLen = 0;
const WCHAR *pCandidateString = nullptr;
candidateLen = _pCandidateListUIPresenter->_GetSelectedCandidateString(&pCandidateString);
CStringRange candidateString;
candidateString.Set(pCandidateString, candidateLen);
if (candidateLen)
{
// Finalize character
hr = _AddCharAndFinalize(ec, pContext, &candidateString);
if (FAILED(hr))
{
return hr;
}
}
}
else
{
// Finalize current text store strings
if (_IsComposing())
{
ULONG fetched = 0;
TF_SELECTION tfSelection;
if (FAILED(pContext->GetSelection(ec, TF_DEFAULT_SELECTION, 1, &tfSelection, &fetched)) || fetched != 1)
{
return S_FALSE;
}
ITfRange* pRangeComposition = nullptr;
if (SUCCEEDED(_pComposition->GetRange(&pRangeComposition)))
{
if (_IsRangeCovered(ec, tfSelection.range, pRangeComposition))
{
_EndComposition(pContext);
}
pRangeComposition->Release();
}
tfSelection.range->Release();
}
}
_HandleCancel(ec, pContext);
return S_OK;
}
HRESULT COVTSF::_HandleCompositionDoubleSingleByte(TfEditCookie ec, _In_ ITfContext *pContext, WCHAR wch)
{
HRESULT hr = S_OK;
WCHAR fullWidth = Global::FullWidthCharTable[wch - 0x20];
CStringRange fullWidthString;
fullWidthString.Set(&fullWidth, 1);
// Finalize character
hr = _AddCharAndFinalize(ec, pContext, &fullWidthString);
if (FAILED(hr))
{
return hr;
}
_HandleCancel(ec, pContext);
return S_OK;
}
HRESULT COVTSF::_HandleCompositionPunctuation(TfEditCookie ec, _In_ ITfContext *pContext, WCHAR wch)
{
HRESULT hr = S_OK;
if (_candidateMode != CANDIDATE_NONE && _pCandidateListUIPresenter)
{
DWORD_PTR candidateLen = 0;
const WCHAR* pCandidateString = nullptr;
candidateLen = _pCandidateListUIPresenter->_GetSelectedCandidateString(&pCandidateString);
CStringRange candidateString;
candidateString.Set(pCandidateString, candidateLen);
if (candidateLen)
{
_AddComposingAndChar(ec, pContext, &candidateString);
}
}
//
// Get punctuation char from composition processor engine
//
CCompositionProcessorEngine* pCompositionProcessorEngine = nullptr;
pCompositionProcessorEngine = _pCompositionProcessorEngine;
WCHAR punctuation = pCompositionProcessorEngine->GetPunctuation(wch);
CStringRange punctuationString;
punctuationString.Set(&punctuation, 1);
// Finalize character
hr = _AddCharAndFinalize(ec, pContext, &punctuationString);
if (FAILED(hr))
{
return hr;
}
_HandleCancel(ec, pContext);
return S_OK;
}
HRESULT CDIME::_HandleCandidateWorker(TfEditCookie ec, _In_ ITfContext *pContext)
{
debugPrint(L"CDIME::_HandleCandidateWorker() \n");
HRESULT hr = S_OK;
CStringRange commitString, convertedString;
CDIMEArray<CCandidateListItem> candidatePhraseList;
CStringRange lastChar;
CStringRange notify;
if (nullptr == _pUIPresenter)
{
goto Exit; //should not happen
}
const WCHAR* pCandidateString = nullptr;
DWORD_PTR candidateLen = 0;
BOOL arrayUsingSPCode =FALSE;
if (!_IsComposing())
_StartComposition(pContext);
if (Global::imeMode == IME_MODE_ARRAY)// check if the _strokebuffer is array special code
{
candidateLen = _pCompositionProcessorEngine->CollectWordFromArraySpeicalCode(&pCandidateString);
if(candidateLen) arrayUsingSPCode = TRUE;
}
candidateLen = 0;
candidateLen = _pUIPresenter->_GetSelectedCandidateString(&pCandidateString);
if (candidateLen == 0)
{
if(_candidateMode == CANDIDATE_WITH_NEXT_COMPOSITION || _candidateMode == CANDIDATE_PHRASE)
{
_HandleCancel(ec, pContext);
goto Exit;
}
else
{
hr = S_FALSE;
_HandleCancel(ec, pContext);
DoBeep(BEEP_COMPOSITION_ERROR); //beep for no valid mapping found
goto Exit;
}
}
if (_pCompositionProcessorEngine->IsArrayShortCode() && candidateLen == 1 && *pCandidateString == 0x2394) // empty position in arry short code table.
{
hr = S_FALSE;
if (Global::imeMode == IME_MODE_PHONETIC)
DoBeep(BEEP_WARNING);
else
{
if (CConfig::GetClearOnBeep()) _HandleCancel(ec, pContext);
DoBeep(BEEP_COMPOSITION_ERROR); //beep for no valid mapping found
}
goto Exit;
}
StringCchCopy(_commitString, 1, L"\0");
StringCchCatN(_commitString, MAX_COMMIT_LENGTH, pCandidateString, candidateLen);
commitString.Set(_commitString, candidateLen);
//_commitString = commitString;
PWCHAR pwch = new (std::nothrow) WCHAR[2]; // pCandidateString will be destroyed after _detelteCanddiateList was called.
if(candidateLen > 1)
{
StringCchCopyN(pwch, 2, pCandidateString + candidateLen -1, 1);
}else // cnadidateLen ==1
{
StringCchCopyN(pwch, 2, pCandidateString, 1);
}
lastChar.Set(pwch, 1 );
//-----------------do reverse conversion notify. We should not show notify in UI-less mode, thus cancel reverse conversion notify in UILess Mode
if (!_IsUILessMode())
{
if (_pITfReverseConversion[Global::imeMode])
{
_AsyncReverseConversion(pContext); //asynchronized the reverse conversion with editsession for better perfomance
}
//-----------------or complete real key code when input with wildcard
else if (_isCandidateWithWildcard)
{
const WCHAR* pCandidateKeyCode = nullptr;
DWORD_PTR keyCodeLen = _pUIPresenter->_GetSelectedCandidateKeyCode(&pCandidateKeyCode);
StringCchCopy(_commitKeyCode, 1, L"\0");
StringCchCatN(_commitKeyCode, MAX_KEY_LENGTH, pCandidateKeyCode, keyCodeLen);
CStringRange commitKeyCode, convertedKeyCode;
_pCompositionProcessorEngine->GetReadingString(&convertedKeyCode, NULL, &commitKeyCode.Set(_commitKeyCode, wcslen(_commitKeyCode)));
_pUIPresenter->ShowNotifyText(&convertedKeyCode);
}
}
//-----------------do array spcial code notify. We should not show notify in UI-less mode, thus cancel forceSP mode in UILess Mode---
BOOL ArraySPFound = FALSE;
if(Global::imeMode == IME_MODE_ARRAY && !_IsUILessMode() && !arrayUsingSPCode && (CConfig::GetArrayForceSP() || CConfig::GetArrayNotifySP()))
{
CStringRange specialCode;
CStringRange notifyText;
ArraySPFound = _pCompositionProcessorEngine->GetArraySpeicalCodeFromConvertedText(&commitString, &specialCode);
if(specialCode.Get())
_pUIPresenter->ShowNotifyText(&specialCode);
}
convertedString = commitString;
//----------------- do TC to SC covert if required----------------------------------------------------------------------------------
if(CConfig::GetDoHanConvert())
{
_pCompositionProcessorEngine->GetSCFromTC(&commitString, &convertedString);
}
//----------------- commit the selected string ------------------------------------------------------------------------------------
if(Global::imeMode == IME_MODE_ARRAY && !_IsUILessMode() && !arrayUsingSPCode && CConfig::GetArrayForceSP() && ArraySPFound )
{
_HandleCancel(ec, pContext);
DoBeep(BEEP_WARNING);
return hr;
}
else
{
hr = _AddComposingAndChar(ec, pContext, &convertedString);
if (FAILED(hr)) return hr;
// Do not send _endcandidatelist (or handleComplete) here to avoid cand dissapear in win8 metro
_HandleComplete(ec,pContext);
}
//-----------------do accociated phrase (make phrase)--------------------------------------------------------------------------------
if (CConfig::GetMakePhrase())
{
_pCompositionProcessorEngine->GetCandidateStringInConverted(lastChar, &candidatePhraseList);
// We have a candidate list if candidatePhraseList.Cnt is not 0
// If we are showing reverse conversion, use UIPresenter
if (candidatePhraseList.Count())
{
CStringRange emptyComposition;
if (!_IsComposing())
_StartComposition(pContext); //StartCandidateList require a valid selection from a valid pComposition to determine the location to show the candidate window
_AddComposingAndChar(ec, pContext, &emptyComposition.Set(L" ",1));
_pUIPresenter->_ClearCandidateList();
_pUIPresenter->_SetCandidateTextColor(CConfig::GetPhraseColor(), CConfig::GetItemBGColor()); // Text color is green
_pUIPresenter->_SetCandidateSelectedTextColor(CConfig::GetSelectedColor(), CConfig::GetSelectedBGColor());
_pUIPresenter->_SetCandidateNumberColor(CConfig::GetNumberColor(), CConfig::GetItemBGColor());
_pUIPresenter->_SetCandidateFillColor(CConfig::GetItemBGColor());//(HBRUSH)(COLOR_WINDOW+1)); // Background color is window
_pUIPresenter->_SetCandidateText(&candidatePhraseList, _pCompositionProcessorEngine->GetCandidateListIndexRange(),
TRUE, _pCompositionProcessorEngine->GetCandidateWindowWidth());
_pUIPresenter->_SetCandidateSelection(-1, FALSE); // set selected index to -1 if showing phrase candidates
_candidateMode = CANDIDATE_PHRASE;
_isCandidateWithWildcard = FALSE;
}
else
{ //cancel the composition if the phrase lookup return 0 results
_HandleCancel(ec,pContext);
}
}
else
_DeleteCandidateList(TRUE, pContext); // endCanddiateUI if not doing associated phrase.
Exit:
return hr;
}