wine/dlls/winex11.drv/xim.c
2008-04-10 12:45:56 +02:00

625 lines
19 KiB
C

/*
* Functions for further XIM control
*
* Copyright 2003 CodeWeavers, Aric Stewart
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "wingdi.h"
#include "winnls.h"
#include "x11drv.h"
#include "imm.h"
#include "ddk/imm.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(x11drv);
BOOL ximInComposeMode=FALSE;
/* moved here from imm32 for dll separation */
static DWORD dwCompStringLength = 0;
static LPBYTE CompositionString = NULL;
static DWORD dwCompStringSize = 0;
static LPBYTE ResultString = NULL;
static DWORD dwResultStringSize = 0;
static DWORD dwPreeditPos = 0;
#define STYLE_OFFTHESPOT (XIMPreeditArea | XIMStatusArea)
#define STYLE_OVERTHESPOT (XIMPreeditPosition | XIMStatusNothing)
#define STYLE_ROOT (XIMPreeditNothing | XIMStatusNothing)
/* this uses all the callbacks to utilize full IME support */
#define STYLE_CALLBACK (XIMPreeditCallbacks | XIMStatusNothing)
/* inorder to enable deadkey support */
#define STYLE_NONE (XIMPreeditNothing | XIMStatusNothing)
static XIMStyle ximStyle = 0;
static XIMStyle ximStyleRoot = 0;
static XIMStyle ximStyleRequest = STYLE_CALLBACK;
static BOOL X11DRV_ImmSetInternalString(DWORD dwIndex, DWORD dwOffset,
DWORD selLength, LPWSTR lpComp, DWORD dwCompLen)
{
/* Composition strings are edited in chunks */
unsigned int byte_length = dwCompLen * sizeof(WCHAR);
unsigned int byte_offset = dwOffset * sizeof(WCHAR);
unsigned int byte_selection = selLength * sizeof(WCHAR);
BOOL rc = FALSE;
TRACE("( %i, %i, %d, %p, %d):\n", dwOffset, selLength, dwIndex, lpComp, dwCompLen );
if (dwIndex == GCS_COMPSTR)
{
unsigned int i,j;
LPBYTE ptr_new;
LPBYTE ptr_old;
if ((dwCompLen == 0) && (selLength == 0))
{
/* DO Nothing */
}
/* deletion occurred */
else if ((dwCompLen== 0) && (selLength != 0))
{
if (dwCompStringLength)
{
for (i = 0; i < byte_selection; i++)
{
if (byte_offset+byte_selection+i <
dwCompStringLength)
{
CompositionString[byte_offset + i] =
CompositionString[byte_offset + byte_selection + i];
}
else
CompositionString[byte_offset + i] = 0;
}
/* clean up the end */
dwCompStringLength -= byte_selection;
i = dwCompStringLength;
while (i < dwCompStringSize)
{
CompositionString[i++] = 0;
}
}
}
else
{
int byte_expansion = byte_length - byte_selection;
if (byte_expansion + dwCompStringLength >= dwCompStringSize)
{
if (CompositionString)
CompositionString =
HeapReAlloc(GetProcessHeap(), 0,
CompositionString,
dwCompStringSize +
byte_expansion);
else
CompositionString =
HeapAlloc(GetProcessHeap(), 0, dwCompStringSize +
byte_expansion);
memset(&(CompositionString[dwCompStringSize]), 0,
byte_expansion);
dwCompStringSize += byte_expansion;
}
ptr_new = ((LPBYTE)lpComp);
ptr_old = CompositionString + byte_offset + byte_selection;
dwCompStringLength += byte_expansion;
for (j=0,i = byte_offset; i < dwCompStringSize; i++)
{
if (j < byte_length)
{
CompositionString[i] = ptr_new[j++];
}
else
{
if (ptr_old < CompositionString + dwCompStringSize)
{
CompositionString[i] = *ptr_old;
ptr_old++;
}
else
CompositionString[i] = 0;
}
}
}
rc = IME_SetCompositionString(SCS_SETSTR, (LPWSTR)CompositionString,
dwCompStringLength, NULL, 0);
}
else if ((dwIndex == GCS_RESULTSTR) && (lpComp) && (dwCompLen))
{
if (dwResultStringSize)
HeapFree(GetProcessHeap(),0,ResultString);
dwResultStringSize= byte_length;
ResultString= HeapAlloc(GetProcessHeap(),0,byte_length);
memcpy(ResultString,lpComp,byte_length);
rc = IME_SetCompositionString(SCS_SETSTR, (LPWSTR)ResultString,
dwResultStringSize, NULL, 0);
IME_NotifyIME( NI_COMPOSITIONSTR, CPS_COMPLETE, 0);
}
return rc;
}
void X11DRV_XIMLookupChars( const char *str, DWORD count )
{
DWORD dwOutput;
WCHAR wcOutput[64];
HWND focus;
dwOutput = MultiByteToWideChar(CP_UNIXCP, 0, str, count, wcOutput, sizeof(wcOutput)/sizeof(WCHAR));
if ((focus = GetFocus()))
IME_UpdateAssociation(focus);
X11DRV_ImmSetInternalString(GCS_RESULTSTR,0,0,wcOutput,dwOutput);
}
static void X11DRV_ImmSetOpenStatus(BOOL fOpen)
{
if (fOpen == FALSE)
{
if (dwCompStringSize)
HeapFree(GetProcessHeap(),0,CompositionString);
dwCompStringSize = 0;
dwCompStringLength = 0;
CompositionString = NULL;
if (dwResultStringSize)
HeapFree(GetProcessHeap(),0,ResultString);
dwResultStringSize = 0;
ResultString = NULL;
}
IME_SetOpenStatus(fOpen);
}
static int XIMPreEditStartCallback(XIC ic, XPointer client_data, XPointer call_data)
{
TRACE("PreEditStartCallback %p\n",ic);
X11DRV_ImmSetOpenStatus(TRUE);
ximInComposeMode = TRUE;
IME_SendMessageToSelectedHWND(EM_GETSEL, 0, (LPARAM)&dwPreeditPos);
return -1;
}
static void XIMPreEditDoneCallback(XIC ic, XPointer client_data, XPointer call_data)
{
TRACE("PreeditDoneCallback %p\n",ic);
ximInComposeMode = FALSE;
X11DRV_ImmSetOpenStatus(FALSE);
dwPreeditPos = 0;
}
static void XIMPreEditDrawCallback(XIM ic, XPointer client_data,
XIMPreeditDrawCallbackStruct *P_DR)
{
TRACE("PreEditDrawCallback %p\n",ic);
if (P_DR)
{
int sel = P_DR->chg_first;
int len = P_DR->chg_length;
if (P_DR->text)
{
if (! P_DR->text->encoding_is_wchar)
{
DWORD dwOutput;
WCHAR *wcOutput;
TRACE("multibyte\n");
dwOutput = MultiByteToWideChar(CP_UNIXCP, 0,
P_DR->text->string.multi_byte, -1,
NULL, 0);
wcOutput = HeapAlloc(GetProcessHeap(), 0, sizeof (WCHAR) * dwOutput);
if (wcOutput)
{
dwOutput = MultiByteToWideChar(CP_UNIXCP, 0,
P_DR->text->string.multi_byte, -1,
wcOutput, dwOutput);
/* ignore null */
dwOutput --;
X11DRV_ImmSetInternalString (GCS_COMPSTR, sel, len, wcOutput, dwOutput);
HeapFree(GetProcessHeap(), 0, wcOutput);
}
}
else
{
FIXME("wchar PROBIBILY WRONG\n");
X11DRV_ImmSetInternalString (GCS_COMPSTR, sel, len,
(LPWSTR)P_DR->text->string.wide_char,
P_DR->text->length);
}
}
else
X11DRV_ImmSetInternalString (GCS_COMPSTR, sel, len, NULL, 0);
}
TRACE("Finished\n");
}
static void XIMPreEditCaretCallback(XIC ic, XPointer client_data,
XIMPreeditCaretCallbackStruct *P_C)
{
TRACE("PreeditCaretCallback %p\n",ic);
if (P_C)
{
int pos = IME_GetCursorPos();
TRACE("pos: %d\n", pos);
switch(P_C->direction)
{
case XIMForwardChar:
case XIMForwardWord:
pos++;
break;
case XIMBackwardChar:
case XIMBackwardWord:
pos--;
break;
case XIMLineStart:
pos = 0;
break;
case XIMAbsolutePosition:
pos = P_C->position;
break;
case XIMDontChange:
P_C->position = pos;
return;
case XIMCaretUp:
case XIMCaretDown:
case XIMPreviousLine:
case XIMNextLine:
case XIMLineEnd:
FIXME("Not implemented\n");
break;
}
IME_SendMessageToSelectedHWND( EM_SETSEL, dwPreeditPos + pos,
dwPreeditPos + pos);
P_C->position = pos;
}
TRACE("Finished\n");
}
void X11DRV_ForceXIMReset(HWND hwnd)
{
XIC ic = X11DRV_get_ic(hwnd);
if (ic)
{
char* leftover;
TRACE("Forcing Reset %p\n",ic);
wine_tsx11_lock();
leftover = XmbResetIC(ic);
XFree(leftover);
wine_tsx11_unlock();
}
}
/***********************************************************************
* X11DRV_InitXIM
*
* Process-wide XIM initialization.
*/
BOOL X11DRV_InitXIM( const char *input_style )
{
BOOL ret;
if (!strcasecmp(input_style, "offthespot"))
ximStyleRequest = STYLE_OFFTHESPOT;
else if (!strcasecmp(input_style, "overthespot"))
ximStyleRequest = STYLE_OVERTHESPOT;
else if (!strcasecmp(input_style, "root"))
ximStyleRequest = STYLE_ROOT;
wine_tsx11_lock();
if (!(ret = XSupportsLocale()))
{
WARN("X does not support locale.\n");
}
else if (XSetLocaleModifiers("") == NULL)
{
WARN("Could not set locale modifiers.\n");
ret = FALSE;
}
wine_tsx11_unlock();
return ret;
}
static void X11DRV_OpenIM(Display *display, XPointer p, XPointer data);
static void X11DRV_DestroyIM(XIM xim, XPointer p, XPointer data)
{
struct x11drv_thread_data *thread_data = x11drv_thread_data();
TRACE("xim = %p, p = %p\n", xim, p);
thread_data->xim = NULL;
ximStyle = 0;
wine_tsx11_lock();
XRegisterIMInstantiateCallback( thread_data->display, NULL, NULL, NULL, X11DRV_OpenIM, NULL );
wine_tsx11_unlock();
}
/***********************************************************************
* X11DRV Ime creation
*/
static void X11DRV_OpenIM(Display *display, XPointer ptr, XPointer data)
{
struct x11drv_thread_data *thread_data = x11drv_thread_data();
XIMStyle ximStyleCallback, ximStyleNone;
XIMStyles *ximStyles = NULL;
INT i;
XIM xim;
XIMCallback destroy;
wine_tsx11_lock();
xim = XOpenIM(display, NULL, NULL, NULL);
if (xim == NULL)
{
WARN("Could not open input method.\n");
wine_tsx11_unlock();
return;
}
destroy.client_data = NULL;
destroy.callback = X11DRV_DestroyIM;
if (XSetIMValues(xim, XNDestroyCallback, &destroy, NULL))
{
WARN("Could not set destroy callback.\n");
}
TRACE("xim = %p\n", xim);
TRACE("X display of IM = %p\n", XDisplayOfIM(xim));
TRACE("Using %s locale of Input Method\n", XLocaleOfIM(xim));
XGetIMValues(xim, XNQueryInputStyle, &ximStyles, NULL);
if (ximStyles == 0)
{
WARN("Could not find supported input style.\n");
XCloseIM(xim);
wine_tsx11_unlock();
return;
}
else
{
TRACE("ximStyles->count_styles = %d\n", ximStyles->count_styles);
ximStyleRoot = 0;
ximStyleNone = 0;
ximStyleCallback = 0;
for (i = 0; i < ximStyles->count_styles; ++i)
{
int style = ximStyles->supported_styles[i];
TRACE("ximStyles[%d] = %s%s%s%s%s\n", i,
(style&XIMPreeditArea)?"XIMPreeditArea ":"",
(style&XIMPreeditCallbacks)?"XIMPreeditCallbacks ":"",
(style&XIMPreeditPosition)?"XIMPreeditPosition ":"",
(style&XIMPreeditNothing)?"XIMPreeditNothing ":"",
(style&XIMPreeditNone)?"XIMPreeditNone ":"");
if (!ximStyle && (ximStyles->supported_styles[i] ==
ximStyleRequest))
{
ximStyle = ximStyleRequest;
TRACE("Setting Style: ximStyle = ximStyleRequest\n");
}
else if (!ximStyleRoot &&(ximStyles->supported_styles[i] ==
STYLE_ROOT))
{
ximStyleRoot = STYLE_ROOT;
TRACE("Setting Style: ximStyleRoot = STYLE_ROOT\n");
}
else if (!ximStyleCallback &&(ximStyles->supported_styles[i] ==
STYLE_CALLBACK))
{
ximStyleCallback = STYLE_CALLBACK;
TRACE("Setting Style: ximStyleCallback = STYLE_CALLBACK\n");
}
else if (!ximStyleNone && (ximStyles->supported_styles[i] ==
STYLE_NONE))
{
TRACE("Setting Style: ximStyleNone = STYLE_NONE\n");
ximStyleNone = STYLE_NONE;
}
}
XFree(ximStyles);
if (ximStyle == 0)
ximStyle = ximStyleRoot;
if (ximStyle == 0)
ximStyle = ximStyleNone;
if (ximStyleCallback == 0)
{
TRACE("No callback style avalable\n");
ximStyleCallback = ximStyle;
}
}
thread_data->xim = xim;
XUnregisterIMInstantiateCallback(display, NULL, NULL, NULL, X11DRV_OpenIM, NULL);
wine_tsx11_unlock();
IME_XIMPresent(TRUE);
IME_UpdateAssociation(NULL);
}
void X11DRV_SetupXIM(void)
{
wine_tsx11_lock();
XRegisterIMInstantiateCallback(thread_display(), NULL, NULL, NULL, X11DRV_OpenIM, NULL);
wine_tsx11_unlock();
}
static BOOL X11DRV_DestroyIC(XIC xic, XPointer p, XPointer data)
{
struct x11drv_win_data *win_data = (struct x11drv_win_data *)p;
TRACE("xic = %p, win = %lx\n", xic, win_data->whole_window);
win_data->xic = NULL;
return TRUE;
}
XIC X11DRV_CreateIC(XIM xim, struct x11drv_win_data *data)
{
XPoint spot = {0};
XVaNestedList preedit = NULL;
XVaNestedList status = NULL;
XIC xic;
XICCallback destroy = {(XPointer)data, X11DRV_DestroyIC};
XIMCallback P_StartCB;
XIMCallback P_DoneCB;
XIMCallback P_DrawCB;
XIMCallback P_CaretCB;
LANGID langid = PRIMARYLANGID(LANGIDFROMLCID(GetThreadLocale()));
Window win = data->whole_window;
TRACE("xim = %p\n", xim);
wine_tsx11_lock();
/* use complex and slow XIC initialization method only for CJK */
if (langid != LANG_CHINESE &&
langid != LANG_JAPANESE &&
langid != LANG_KOREAN)
{
xic = XCreateIC(xim,
XNInputStyle, XIMPreeditNothing | XIMStatusNothing,
XNClientWindow, win,
XNFocusWindow, win,
XNDestroyCallback, &destroy,
NULL);
wine_tsx11_unlock();
data->xic = xic;
return xic;
}
/* create callbacks */
P_StartCB.client_data = NULL;
P_StartCB.callback = (XIMProc)XIMPreEditStartCallback;
P_DoneCB.client_data = NULL;
P_DoneCB.callback = (XIMProc)XIMPreEditDoneCallback;
P_DrawCB.client_data = NULL;
P_DrawCB.callback = (XIMProc)XIMPreEditDrawCallback;
P_CaretCB.client_data = NULL;
P_CaretCB.callback = (XIMProc)XIMPreEditCaretCallback;
if ((ximStyle & (XIMPreeditNothing | XIMPreeditNone)) == 0)
{
preedit = XVaCreateNestedList(0,
XNSpotLocation, &spot,
XNPreeditStartCallback, &P_StartCB,
XNPreeditDoneCallback, &P_DoneCB,
XNPreeditDrawCallback, &P_DrawCB,
XNPreeditCaretCallback, &P_CaretCB,
NULL);
TRACE("preedit = %p\n", preedit);
}
else
{
preedit = XVaCreateNestedList(0,
XNPreeditStartCallback, &P_StartCB,
XNPreeditDoneCallback, &P_DoneCB,
XNPreeditDrawCallback, &P_DrawCB,
XNPreeditCaretCallback, &P_CaretCB,
NULL);
TRACE("preedit = %p\n", preedit);
}
if ((ximStyle & (XIMStatusNothing | XIMStatusNone)) == 0)
{
status = XVaCreateNestedList(0,
NULL);
TRACE("status = %p\n", status);
}
if (preedit != NULL && status != NULL)
{
xic = XCreateIC(xim,
XNInputStyle, ximStyle,
XNPreeditAttributes, preedit,
XNStatusAttributes, status,
XNClientWindow, win,
XNFocusWindow, win,
XNDestroyCallback, &destroy,
NULL);
}
else if (preedit != NULL)
{
xic = XCreateIC(xim,
XNInputStyle, ximStyle,
XNPreeditAttributes, preedit,
XNClientWindow, win,
XNFocusWindow, win,
XNDestroyCallback, &destroy,
NULL);
}
else if (status != NULL)
{
xic = XCreateIC(xim,
XNInputStyle, ximStyle,
XNStatusAttributes, status,
XNClientWindow, win,
XNFocusWindow, win,
XNDestroyCallback, &destroy,
NULL);
}
else
{
xic = XCreateIC(xim,
XNInputStyle, ximStyle,
XNClientWindow, win,
XNFocusWindow, win,
XNDestroyCallback, &destroy,
NULL);
}
TRACE("xic = %p\n", xic);
data->xic = xic;
if (preedit != NULL)
XFree(preedit);
if (status != NULL)
XFree(status);
wine_tsx11_unlock();
return xic;
}