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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://www.qtsoftware.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include "qwininputcontext_p.h"
#include "qinputcontext_p.h"
#include "qfont.h"
#include "qwidget.h"
#include "qapplication.h"
#include "qlibrary.h"
#include "qevent.h"
#include "qtextformat.h"
//#define Q_IME_DEBUG
/* Active Input method support on Win95/98/NT */
#include <objbase.h>
#include <initguid.h>
#ifdef Q_IME_DEBUG
#include "qdebug.h"
#endif
#if defined(Q_WS_WINCE)
extern void qt_wince_show_SIP(bool show); // defined in qguifunctions_wince.cpp
#endif
QT_BEGIN_NAMESPACE
extern bool qt_sendSpontaneousEvent(QObject*, QEvent*);
DEFINE_GUID(IID_IActiveIMMApp,
0x08c0e040, 0x62d1, 0x11d1, 0x93, 0x26, 0x0, 0x60, 0xb0, 0x67, 0xb8, 0x6e);
DEFINE_GUID(CLSID_CActiveIMM,
0x4955DD33, 0xB159, 0x11d0, 0x8F, 0xCF, 0x0, 0xAA, 0x00, 0x6B, 0xCC, 0x59);
DEFINE_GUID(IID_IActiveIMMMessagePumpOwner,
0xb5cf2cfa, 0x8aeb, 0x11d1, 0x93, 0x64, 0x0, 0x60, 0xb0, 0x67, 0xb8, 0x6e);
interface IEnumRegisterWordW;
interface IEnumInputContext;
bool qt_sendSpontaneousEvent(QObject*, QEvent*);
#define IFMETHOD HRESULT STDMETHODCALLTYPE
interface IActiveIMMApp : public IUnknown
{
public:
virtual IFMETHOD AssociateContext(HWND hWnd, HIMC hIME, HIMC __RPC_FAR *phPrev) = 0;
virtual IFMETHOD dummy_ConfigureIMEA() = 0;
virtual IFMETHOD ConfigureIMEW(HKL hKL, HWND hWnd, DWORD dwMode, REGISTERWORDW __RPC_FAR *pData) = 0;
virtual IFMETHOD CreateContext(HIMC __RPC_FAR *phIMC) = 0;
virtual IFMETHOD DestroyContext(HIMC hIME) = 0;
virtual IFMETHOD dummy_EnumRegisterWordA() = 0;
virtual IFMETHOD EnumRegisterWordW(HKL hKL, LPWSTR szReading, DWORD dwStyle, LPWSTR szRegister, LPVOID pData,
IEnumRegisterWordW __RPC_FAR *__RPC_FAR *pEnum) = 0;
virtual IFMETHOD dummy_EscapeA() = 0;
virtual IFMETHOD EscapeW(HKL hKL, HIMC hIMC, UINT uEscape, LPVOID pData, LRESULT __RPC_FAR *plResult) = 0;
virtual IFMETHOD dummy_GetCandidateListA() = 0;
virtual IFMETHOD GetCandidateListW(HIMC hIMC, DWORD dwIndex, UINT uBufLen, CANDIDATELIST __RPC_FAR *pCandList,
UINT __RPC_FAR *puCopied) = 0;
virtual IFMETHOD dummy_GetCandidateListCountA() = 0;
virtual IFMETHOD GetCandidateListCountW(HIMC hIMC, DWORD __RPC_FAR *pdwListSize, DWORD __RPC_FAR *pdwBufLen) = 0;
virtual IFMETHOD GetCandidateWindow(HIMC hIMC, DWORD dwIndex, CANDIDATEFORM __RPC_FAR *pCandidate) = 0;
virtual IFMETHOD dummy_GetCompositionFontA() = 0;
virtual IFMETHOD GetCompositionFontW(HIMC hIMC, LOGFONTW __RPC_FAR *plf) = 0;
virtual IFMETHOD dummy_GetCompositionStringA() = 0;
virtual IFMETHOD GetCompositionStringW(HIMC hIMC, DWORD dwIndex, DWORD dwBufLen, LONG __RPC_FAR *plCopied, LPVOID pBuf) = 0;
virtual IFMETHOD GetCompositionWindow(HIMC hIMC, COMPOSITIONFORM __RPC_FAR *pCompForm) = 0;
virtual IFMETHOD GetContext(HWND hWnd, HIMC __RPC_FAR *phIMC) = 0;
virtual IFMETHOD dummy_GetConversionListA() = 0;
virtual IFMETHOD GetConversionListW(HKL hKL, HIMC hIMC, LPWSTR pSrc, UINT uBufLen, UINT uFlag,
CANDIDATELIST __RPC_FAR *pDst, UINT __RPC_FAR *puCopied) = 0;
virtual IFMETHOD GetConversionStatus(HIMC hIMC, DWORD __RPC_FAR *pfdwConversion, DWORD __RPC_FAR *pfdwSentence) = 0;
virtual IFMETHOD GetDefaultIMEWnd(HWND hWnd, HWND __RPC_FAR *phDefWnd) = 0;
virtual IFMETHOD dummy_GetDescriptionA() = 0;
virtual IFMETHOD GetDescriptionW(HKL hKL, UINT uBufLen, LPWSTR szDescription, UINT __RPC_FAR *puCopied) = 0;
virtual IFMETHOD dummy_GetGuideLineA() = 0;
virtual IFMETHOD GetGuideLineW(HIMC hIMC, DWORD dwIndex, DWORD dwBufLen, LPWSTR pBuf, DWORD __RPC_FAR *pdwResult) = 0;
virtual IFMETHOD dummy_GetIMEFileNameA() = 0;
virtual IFMETHOD GetIMEFileNameW(HKL hKL, UINT uBufLen, LPWSTR szFileName, UINT __RPC_FAR *puCopied) = 0;
virtual IFMETHOD GetOpenStatus(HIMC hIMC) = 0;
virtual IFMETHOD GetProperty(HKL hKL, DWORD fdwIndex, DWORD __RPC_FAR *pdwProperty) = 0;
virtual IFMETHOD dummy_GetRegisterWordStyleA() = 0;
virtual IFMETHOD GetRegisterWordStyleW(HKL hKL, UINT nItem, STYLEBUFW __RPC_FAR *pStyleBuf, UINT __RPC_FAR *puCopied) = 0;
virtual IFMETHOD GetStatusWindowPos(HIMC hIMC, POINT __RPC_FAR *pptPos) = 0;
virtual IFMETHOD GetVirtualKey(HWND hWnd, UINT __RPC_FAR *puVirtualKey) = 0;
virtual IFMETHOD dummy_InstallIMEA() = 0;
virtual IFMETHOD InstallIMEW(LPWSTR szIMEFileName, LPWSTR szLayoutText, HKL __RPC_FAR *phKL) = 0;
virtual IFMETHOD IsIME(HKL hKL) = 0;
virtual IFMETHOD dummy_IsUIMessageA() = 0;
virtual IFMETHOD IsUIMessageW(HWND hWndIME, UINT msg, WPARAM wParam, LPARAM lParam) = 0;
virtual IFMETHOD NotifyIME(HIMC hIMC, DWORD dwAction, DWORD dwIndex, DWORD dwValue) = 0;
virtual IFMETHOD dummy_RegisterWordA() = 0;
virtual IFMETHOD RegisterWordW(HKL hKL, LPWSTR szReading, DWORD dwStyle, LPWSTR szRegister) = 0;
virtual IFMETHOD ReleaseContext(HWND hWnd, HIMC hIMC) = 0;
virtual IFMETHOD SetCandidateWindow(HIMC hIMC, CANDIDATEFORM __RPC_FAR *pCandidate) = 0;
virtual IFMETHOD SetCompositionFontA(HIMC hIMC, LOGFONTA __RPC_FAR *plf) = 0;
virtual IFMETHOD SetCompositionFontW(HIMC hIMC, LOGFONTW __RPC_FAR *plf) = 0;
virtual IFMETHOD dummy_SetCompositionStringA() = 0;
virtual IFMETHOD SetCompositionStringW(HIMC hIMC, DWORD dwIndex, LPVOID pComp, DWORD dwCompLen,
LPVOID pRead, DWORD dwReadLen) = 0;
virtual IFMETHOD SetCompositionWindow(HIMC hIMC, COMPOSITIONFORM __RPC_FAR *pCompForm) = 0;
virtual IFMETHOD SetConversionStatus(HIMC hIMC, DWORD fdwConversion, DWORD fdwSentence) = 0;
virtual IFMETHOD SetOpenStatus(HIMC hIMC, BOOL fOpen) = 0;
virtual IFMETHOD SetStatusWindowPos(HIMC hIMC, POINT __RPC_FAR *pptPos) = 0;
virtual IFMETHOD SimulateHotKey(HWND hWnd, DWORD dwHotKeyID) = 0;
virtual IFMETHOD dummy_UnregisterWordA() = 0;
virtual IFMETHOD UnregisterWordW(HKL hKL, LPWSTR szReading, DWORD dwStyle, LPWSTR szUnregister) = 0;
virtual IFMETHOD Activate(BOOL fRestoreLayout) = 0;
virtual IFMETHOD Deactivate(void) = 0;
virtual IFMETHOD OnDefWindowProc(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam, LRESULT __RPC_FAR *plResult) = 0;
virtual IFMETHOD FilterClientWindows(ATOM __RPC_FAR *aaClassList, UINT uSize) = 0;
virtual IFMETHOD dummy_GetCodePageA() = 0;
virtual IFMETHOD GetLangId(HKL hKL, LANGID __RPC_FAR *plid) = 0;
virtual IFMETHOD AssociateContextEx(HWND hWnd, HIMC hIMC, DWORD dwFlags) = 0;
virtual IFMETHOD DisableIME(DWORD idThread) = 0;
virtual IFMETHOD dummy_GetImeMenuItemsA() = 0;
virtual IFMETHOD GetImeMenuItemsW(HIMC hIMC, DWORD dwFlags, DWORD dwType, /*IMEMENUITEMINFOW*/ void __RPC_FAR *pImeParentMenu,
/*IMEMENUITEMINFOW*/ void __RPC_FAR *pImeMenu, DWORD dwSize, DWORD __RPC_FAR *pdwResult) = 0;
virtual IFMETHOD EnumInputContext(DWORD idThread, IEnumInputContext __RPC_FAR *__RPC_FAR *ppEnum) = 0;
};
interface IActiveIMMMessagePumpOwner : public IUnknown
{
public:
virtual IFMETHOD Start(void) = 0;
virtual IFMETHOD End(void) = 0;
virtual IFMETHOD OnTranslateMessage(const MSG __RPC_FAR *pMsg) = 0;
virtual IFMETHOD Pause(DWORD __RPC_FAR *pdwCookie) = 0;
virtual IFMETHOD Resume(DWORD dwCookie) = 0;
};
static IActiveIMMApp *aimm = 0;
static IActiveIMMMessagePumpOwner *aimmpump = 0;
static QString *imeComposition = 0;
static int imePosition = -1;
bool qt_use_rtl_extensions = false;
static bool haveCaret = false;
#ifndef LGRPID_INSTALLED
#define LGRPID_INSTALLED 0x00000001 // installed language group ids
#define LGRPID_SUPPORTED 0x00000002 // supported language group ids
#endif
#ifndef LGRPID_ARABIC
#define LGRPID_WESTERN_EUROPE 0x0001 // Western Europe & U.S.
#define LGRPID_CENTRAL_EUROPE 0x0002 // Central Europe
#define LGRPID_BALTIC 0x0003 // Baltic
#define LGRPID_GREEK 0x0004 // Greek
#define LGRPID_CYRILLIC 0x0005 // Cyrillic
#define LGRPID_TURKISH 0x0006 // Turkish
#define LGRPID_JAPANESE 0x0007 // Japanese
#define LGRPID_KOREAN 0x0008 // Korean
#define LGRPID_TRADITIONAL_CHINESE 0x0009 // Traditional Chinese
#define LGRPID_SIMPLIFIED_CHINESE 0x000a // Simplified Chinese
#define LGRPID_THAI 0x000b // Thai
#define LGRPID_HEBREW 0x000c // Hebrew
#define LGRPID_ARABIC 0x000d // Arabic
#define LGRPID_VIETNAMESE 0x000e // Vietnamese
#define LGRPID_INDIC 0x000f // Indic
#define LGRPID_GEORGIAN 0x0010 // Georgian
#define LGRPID_ARMENIAN 0x0011 // Armenian
#endif
static DWORD WM_MSIME_MOUSE = 0;
QWinInputContext::QWinInputContext(QObject *parent)
: QInputContext(parent), recursionGuard(false)
{
if (QSysInfo::WindowsVersion < QSysInfo::WV_2000) {
// try to get the Active IMM COM object on Win95/98/NT, where english versions don't
// support the regular Windows input methods.
if (CoCreateInstance(CLSID_CActiveIMM, NULL, CLSCTX_INPROC_SERVER,
IID_IActiveIMMApp, (LPVOID *)&aimm) != S_OK) {
aimm = 0;
}
if (aimm && (aimm->QueryInterface(IID_IActiveIMMMessagePumpOwner, (LPVOID *)&aimmpump) != S_OK ||
aimm->Activate(true) != S_OK)) {
aimm->Release();
aimm = 0;
if (aimmpump)
aimmpump->Release();
aimmpump = 0;
}
if (aimmpump)
aimmpump->Start();
}
#ifndef Q_WS_WINCE
QSysInfo::WinVersion ver = QSysInfo::windowsVersion();
if (ver & QSysInfo::WV_NT_based && ver >= QSysInfo::WV_VISTA) {
// Since the IsValidLanguageGroup/IsValidLocale functions always return true on
// Vista, check the Keyboard Layouts for enabling RTL.
UINT nLayouts = GetKeyboardLayoutList(0, 0);
if (nLayouts) {
HKL *lpList = new HKL[nLayouts];
GetKeyboardLayoutList(nLayouts, lpList);
for (int i = 0; i<(int)nLayouts; i++) {
WORD plangid = PRIMARYLANGID((quintptr)lpList[i]);
if (plangid == LANG_ARABIC
|| plangid == LANG_HEBREW
|| plangid == LANG_FARSI
#ifdef LANG_SYRIAC
|| plangid == LANG_SYRIAC
#endif
) {
qt_use_rtl_extensions = true;
break;
}
}
delete []lpList;
}
} else {
// figure out whether a RTL language is installed
typedef BOOL(WINAPI *PtrIsValidLanguageGroup)(DWORD,DWORD);
PtrIsValidLanguageGroup isValidLanguageGroup = (PtrIsValidLanguageGroup)QLibrary::resolve(QLatin1String("kernel32"), "IsValidLanguageGroup");
if (isValidLanguageGroup) {
qt_use_rtl_extensions = isValidLanguageGroup(LGRPID_ARABIC, LGRPID_INSTALLED)
|| isValidLanguageGroup(LGRPID_HEBREW, LGRPID_INSTALLED);
}
qt_use_rtl_extensions |= IsValidLocale(MAKELCID(MAKELANGID(LANG_ARABIC, SUBLANG_DEFAULT), SORT_DEFAULT), LCID_INSTALLED)
|| IsValidLocale(MAKELCID(MAKELANGID(LANG_HEBREW, SUBLANG_DEFAULT), SORT_DEFAULT), LCID_INSTALLED)
#ifdef LANG_SYRIAC
|| IsValidLocale(MAKELCID(MAKELANGID(LANG_SYRIAC, SUBLANG_DEFAULT), SORT_DEFAULT), LCID_INSTALLED)
#endif
|| IsValidLocale(MAKELCID(MAKELANGID(LANG_FARSI, SUBLANG_DEFAULT), SORT_DEFAULT), LCID_INSTALLED);
}
#else
qt_use_rtl_extensions = false;
#endif
WM_MSIME_MOUSE = QT_WA_INLINE(RegisterWindowMessage(L"MSIMEMouseOperation"), RegisterWindowMessageA("MSIMEMouseOperation"));
}
QWinInputContext::~QWinInputContext()
{
// release active input method if we have one
if (aimm) {
aimmpump->End();
aimmpump->Release();
aimm->Deactivate();
aimm->Release();
aimm = 0;
aimmpump = 0;
}
delete imeComposition;
imeComposition = 0;
}
static HWND getDefaultIMEWnd(HWND wnd)
{
HWND ime_wnd;
if(aimm)
aimm->GetDefaultIMEWnd(wnd, &ime_wnd);
else
ime_wnd = ImmGetDefaultIMEWnd(wnd);
return ime_wnd;
}
static HIMC getContext(HWND wnd)
{
HIMC imc;
if (aimm)
aimm->GetContext(wnd, &imc);
else
imc = ImmGetContext(wnd);
return imc;
}
static void releaseContext(HWND wnd, HIMC imc)
{
if (aimm)
aimm->ReleaseContext(wnd, imc);
else
ImmReleaseContext(wnd, imc);
}
static void notifyIME(HIMC imc, DWORD dwAction, DWORD dwIndex, DWORD dwValue)
{
if (!imc)
return;
if (aimm)
aimm->NotifyIME(imc, dwAction, dwIndex, dwValue);
else
ImmNotifyIME(imc, dwAction, dwIndex, dwValue);
}
static LONG getCompositionString(HIMC himc, DWORD dwIndex, LPVOID lpbuf, DWORD dBufLen, bool *unicode = 0)
{
LONG len = 0;
if (unicode)
*unicode = true;
if (aimm)
aimm->GetCompositionStringW(himc, dwIndex, dBufLen, &len, lpbuf);
else
{
if(QSysInfo::WindowsVersion != QSysInfo::WV_95) {
len = ImmGetCompositionStringW(himc, dwIndex, lpbuf, dBufLen);
}
#if !defined(Q_WS_WINCE)
else {
len = ImmGetCompositionStringA(himc, dwIndex, lpbuf, dBufLen);
if (unicode)
*unicode = false;
}
#endif
}
return len;
}
static int getCursorPosition(HIMC himc)
{
return getCompositionString(himc, GCS_CURSORPOS, 0, 0);
}
static QString getString(HIMC himc, DWORD dwindex, int *selStart = 0, int *selLength = 0)
{
static char *buffer = 0;
static int buflen = 0;
int len = getCompositionString(himc, dwindex, 0, 0) + 1;
if (!buffer || len > buflen) {
delete [] buffer;
buflen = qMin(len, 256);
buffer = new char[buflen];
}
bool unicode = true;
len = getCompositionString(himc, dwindex, buffer, buflen, &unicode);
if (selStart) {
static char *attrbuffer = 0;
static int attrbuflen = 0;
int attrlen = getCompositionString(himc, dwindex, 0, 0) + 1;
if (!attrbuffer || attrlen> attrbuflen) {
delete [] attrbuffer;
attrbuflen = qMin(attrlen, 256);
attrbuffer = new char[attrbuflen];
}
attrlen = getCompositionString(himc, GCS_COMPATTR, attrbuffer, attrbuflen);
*selStart = attrlen+1;
*selLength = -1;
for (int i = 0; i < attrlen; i++) {
if (attrbuffer[i] & ATTR_TARGET_CONVERTED) {
*selStart = qMin(*selStart, i);
*selLength = qMax(*selLength, i);
}
}
*selLength = qMax(0, *selLength - *selStart + 1);
}
if (len <= 0)
return QString();
if (unicode) {
return QString((QChar *)buffer, len/sizeof(QChar));
}
else {
buffer[len] = 0;
WCHAR *wc = new WCHAR[len+1];
int l = MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED,
buffer, len, wc, len+1);
QString res = QString((QChar *)wc, l);
delete [] wc;
return res;
}
}
void QWinInputContext::TranslateMessage(const MSG *msg)
{
if (!aimmpump || aimmpump->OnTranslateMessage(msg) != S_OK)
::TranslateMessage(msg);
}
LRESULT QWinInputContext::DefWindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
LRESULT retval;
if (!aimm || aimm->OnDefWindowProc(hwnd, msg, wParam, lParam, &retval) != S_OK)
{
QT_WA({
retval = ::DefWindowProc(hwnd, msg, wParam, lParam);
} , {
retval = ::DefWindowProcA(hwnd,msg, wParam, lParam);
});
}
return retval;
}
void QWinInputContext::update()
{
QWidget *w = focusWidget();
if(!w)
return;
Q_ASSERT(w->testAttribute(Qt::WA_WState_Created));
HIMC imc = getContext(w->effectiveWinId());
if (!imc)
return;
QFont f = qvariant_cast<QFont>(w->inputMethodQuery(Qt::ImFont));
HFONT hf;
hf = f.handle();
QT_WA({
LOGFONT lf;
if (GetObject(hf, sizeof(lf), &lf))
if (aimm)
aimm->SetCompositionFontW(imc, &lf);
else
ImmSetCompositionFont(imc, &lf);
} , {
LOGFONTA lf;
if (GetObjectA(hf, sizeof(lf), &lf))
if (aimm)
aimm->SetCompositionFontA(imc, &lf);
else
ImmSetCompositionFontA(imc, &lf);
});
QRect r = w->inputMethodQuery(Qt::ImMicroFocus).toRect();
// The ime window positions are based on the WinId with active focus.
QWidget *imeWnd = QWidget::find(::GetFocus());
if (imeWnd && !aimm) {
QPoint pt (r.topLeft());
pt = w->mapToGlobal(pt);
pt = imeWnd->mapFromGlobal(pt);
r.moveTo(pt);
}
COMPOSITIONFORM cf;
// ### need X-like inputStyle config settings
cf.dwStyle = CFS_FORCE_POSITION;
cf.ptCurrentPos.x = r.x();
cf.ptCurrentPos.y = r.y();
CANDIDATEFORM candf;
candf.dwIndex = 0;
candf.dwStyle = CFS_EXCLUDE;
candf.ptCurrentPos.x = r.x();
candf.ptCurrentPos.y = r.y() + r.height();
candf.rcArea.left = r.x();
candf.rcArea.top = r.y();
candf.rcArea.right = r.x() + r.width();
candf.rcArea.bottom = r.y() + r.height();
if(haveCaret)
SetCaretPos(r.x(), r.y());
if (aimm) {
aimm->SetCompositionWindow(imc, &cf);
aimm->SetCandidateWindow(imc, &candf);
} else {
ImmSetCompositionWindow(imc, &cf);
ImmSetCandidateWindow(imc, &candf);
}
releaseContext(w->effectiveWinId(), imc);
}
bool QWinInputContext::endComposition()
{
QWidget *fw = focusWidget();
#ifdef Q_IME_DEBUG
qDebug("endComposition! fw = %s", fw ? fw->className() : "(null)");
#endif
bool result = true;
if(imePosition == -1 || recursionGuard)
return result;
// Googles Pinyin Input Method likes to call endComposition again
// when we call notifyIME with CPS_CANCEL, so protect ourselves
// against that.
recursionGuard = true;
if (fw) {
Q_ASSERT(fw->testAttribute(Qt::WA_WState_Created));
HIMC imc = getContext(fw->effectiveWinId());
notifyIME(imc, NI_COMPOSITIONSTR, CPS_CANCEL, 0);
releaseContext(fw->effectiveWinId(), imc);
if(haveCaret) {
DestroyCaret();
haveCaret = false;
}
}
if (!fw)
fw = QApplication::focusWidget();
if (fw) {
QInputMethodEvent e;
result = qt_sendSpontaneousEvent(fw, &e);
}
if (imeComposition)
imeComposition->clear();
imePosition = -1;
recursionGuard = false;
return result;
}
void QWinInputContext::reset()
{
QWidget *fw = focusWidget();
#ifdef Q_IME_DEBUG
qDebug("sending accept to focus widget %s", fw ? fw->className() : "(null)");
#endif
if (fw && imePosition != -1) {
QInputMethodEvent e;
if (imeComposition)
e.setCommitString(*imeComposition);
imePosition = -1;
qt_sendSpontaneousEvent(fw, &e);
}
if (imeComposition)
imeComposition->clear();
imePosition = -1;
if (fw) {
Q_ASSERT(fw->testAttribute(Qt::WA_WState_Created));
HIMC imc = getContext(fw->effectiveWinId());
notifyIME(imc, NI_COMPOSITIONSTR, CPS_CANCEL, 0);
releaseContext(fw->effectiveWinId(), imc);
}
}
bool QWinInputContext::startComposition()
{
#ifdef Q_IME_DEBUG
qDebug("startComposition");
#endif
if (!imeComposition)
imeComposition = new QString();
QWidget *fw = focusWidget();
if (fw) {
Q_ASSERT(fw->testAttribute(Qt::WA_WState_Created));
imePosition = 0;
haveCaret = CreateCaret(fw->effectiveWinId(), 0, 1, 1);
HideCaret(fw->effectiveWinId());
update();
}
return fw != 0;
}
enum StandardFormat {
PreeditFormat,
SelectionFormat
};
bool QWinInputContext::composition(LPARAM lParam)
{
#ifdef Q_IME_DEBUG
QString str;
if (lParam & GCS_RESULTSTR)
str += "RESULTSTR ";
if (lParam & GCS_COMPSTR)
str += "COMPSTR ";
if (lParam & GCS_COMPATTR)
str += "COMPATTR ";
if (lParam & GCS_CURSORPOS)
str += "CURSORPOS ";
if (lParam & GCS_COMPCLAUSE)
str += "COMPCLAUSE ";
if (lParam & CS_INSERTCHAR)
str += "INSERTCHAR ";
if (lParam & CS_NOMOVECARET)
str += "NOMOVECARET ";
qDebug("composition, lParam=(%x) %s imePosition=%d", lParam, str.latin1(), imePosition);
#endif
bool result = true;
if(!lParam)
// bogus event
return true;
QWidget *fw = QApplication::focusWidget();
if (fw) {
Q_ASSERT(fw->testAttribute(Qt::WA_WState_Created));
HIMC imc = getContext(fw->effectiveWinId());
QInputMethodEvent e;
if (lParam & (GCS_COMPSTR | GCS_COMPATTR | GCS_CURSORPOS)) {
if (imePosition == -1)
// need to send a start event
startComposition();
// some intermediate composition result
int selStart, selLength;
*imeComposition = getString(imc, GCS_COMPSTR, &selStart, &selLength);
imePosition = getCursorPosition(imc);
if (lParam & CS_INSERTCHAR && lParam & CS_NOMOVECARET) {
// make korean work correctly. Hope this is correct for all IMEs
selStart = 0;
selLength = imeComposition->length();
}
if(selLength == 0)
selStart = 0;
QList<QInputMethodEvent::Attribute> attrs;
if (selStart > 0)
attrs << QInputMethodEvent::Attribute(QInputMethodEvent::TextFormat, 0, selStart,
standardFormat(PreeditFormat));
if (selLength)
attrs << QInputMethodEvent::Attribute(QInputMethodEvent::TextFormat, selStart, selLength,
standardFormat(SelectionFormat));
if (selStart + selLength < imeComposition->length())
attrs << QInputMethodEvent::Attribute(QInputMethodEvent::TextFormat, selStart + selLength,
imeComposition->length() - selStart - selLength,
standardFormat(PreeditFormat));
if(imePosition >= 0)
attrs << QInputMethodEvent::Attribute(QInputMethodEvent::Cursor, imePosition, selLength ? 0 : 1, QVariant());
e = QInputMethodEvent(*imeComposition, attrs);
}
if (lParam & GCS_RESULTSTR) {
if(imePosition == -1)
startComposition();
// a fixed result, return the converted string
*imeComposition = getString(imc, GCS_RESULTSTR);
imePosition = -1;
e.setCommitString(*imeComposition);
imeComposition->clear();
}
result = qt_sendSpontaneousEvent(fw, &e);
update();
releaseContext(fw->effectiveWinId(), imc);
}
#ifdef Q_IME_DEBUG
qDebug("imecomposition: cursor pos at %d, str=%x", imePosition, str[0].unicode());
#endif
return result;
}
static HIMC defaultContext = 0;
// checks whether widget is a popup
inline bool isPopup(QWidget *w)
{
if (w && (w->windowFlags() & Qt::Popup) == Qt::Popup)
return true;
else
return false;
}
// checks whether widget is in a popup
inline bool isInPopup(QWidget *w)
{
if (w && (isPopup(w) || isPopup(w->window())))
return true;
else
return false;
}
// find the parent widget, which is a non popup toplevel
// this is valid only if the widget is/in a popup
inline QWidget *findParentforPopup(QWidget *w)
{
QWidget *e = QWidget::find(w->effectiveWinId());
// check if this or its parent is a popup
while (isInPopup(e)) {
e = e->window()->parentWidget();
if (!e)
break;
e = QWidget::find(e->effectiveWinId());
}
if (e)
return e->window();
else
return 0;
}
// enables or disables the ime
inline void enableIme(QWidget *w, bool value)
{
if (value) {
// enable ime
if (defaultContext)
ImmAssociateContext(w->effectiveWinId(), defaultContext);
#ifdef Q_WS_WINCE
if (qApp->autoSipEnabled())
qt_wince_show_SIP(true);
#endif
} else {
// disable ime
HIMC oldimc = ImmAssociateContext(w->effectiveWinId(), 0);
if (!defaultContext)
defaultContext = oldimc;
#ifdef Q_WS_WINCE
if (qApp->autoSipEnabled())
qt_wince_show_SIP(false);
#endif
}
}
void QWinInputContext::updateImeStatus(QWidget *w, bool hasFocus)
{
if (!w)
return;
bool e = w->testAttribute(Qt::WA_InputMethodEnabled) && w->isEnabled();
bool hasIme = e && hasFocus;
#ifdef Q_IME_DEBUG
qDebug("%s HasFocus = %d hasIme = %d e = %d ", w->className(), hasFocus, hasIme, e);
#endif
if (hasFocus || e) {
if (isInPopup(w))
QWinInputContext::enablePopupChild(w, hasIme);
else
QWinInputContext::enable(w, hasIme);
}
}
void QWinInputContext::enablePopupChild(QWidget *w, bool e)
{
if (aimm) {
enable(w, e);
return;
}
if (!w || !isInPopup(w))
return;
#ifdef Q_IME_DEBUG
qDebug("enablePopupChild: w=%s, enable = %s", w ? w->className() : "(null)" , e ? "true" : "false");
#endif
QWidget *parent = findParentforPopup(w);
if (parent) {
// update ime status of the normal toplevel parent of the popup
enableIme(parent, e);
}
QWidget *toplevel = w->window();
if (toplevel) {
// update ime status of the toplevel popup
enableIme(toplevel, e);
}
}
void QWinInputContext::enable(QWidget *w, bool e)
{
if(w) {
#ifdef Q_IME_DEBUG
qDebug("enable: w=%s, enable = %s", w ? w->className() : "(null)" , e ? "true" : "false");
#endif
if (!w->testAttribute(Qt::WA_WState_Created))
return;
if(aimm) {
HIMC oldimc;
if (!e) {
aimm->AssociateContext(w->effectiveWinId(), 0, &oldimc);
if (!defaultContext)
defaultContext = oldimc;
} else if (defaultContext) {
aimm->AssociateContext(w->effectiveWinId(), defaultContext, &oldimc);
}
} else {
// update ime status on the widget
QWidget *p = QWidget::find(w->effectiveWinId());
if (p)
enableIme(p, e);
}
}
}
void QWinInputContext::setFocusWidget(QWidget *w)
{
QWidget *oldFocus = focusWidget();
if (oldFocus == w)
return;
if (w) {
QWinInputContext::updateImeStatus(w, true);
} else {
if (oldFocus)
QWinInputContext::updateImeStatus(oldFocus , false);
}
QInputContext::setFocusWidget(w);
update();
}
bool QWinInputContext::isComposing() const
{
return imeComposition && !imeComposition->isEmpty();
}
void QWinInputContext::mouseHandler(int pos, QMouseEvent *e)
{
if(e->type() != QEvent::MouseButtonPress)
return;
if (pos < 0 || pos > imeComposition->length())
reset();
// Probably should pass the correct button, but it seems to work fine like this.
DWORD button = MK_LBUTTON;
QWidget *fw = focusWidget();
if (fw) {
Q_ASSERT(fw->testAttribute(Qt::WA_WState_Created));
HIMC himc = getContext(fw->effectiveWinId());
HWND ime_wnd = getDefaultIMEWnd(fw->effectiveWinId());
SendMessage(ime_wnd, WM_MSIME_MOUSE, MAKELONG(MAKEWORD(button, pos == 0 ? 2 : 1), pos), (LPARAM)himc);
releaseContext(fw->effectiveWinId(), himc);
}
//qDebug("mouseHandler: got value %d pos=%d", ret,pos);
}
QString QWinInputContext::language()
{
return QString();
}
QT_END_NAMESPACE
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