Sweden-Number/dlls/winex11.drv/xim.c

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/*
* 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 "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(xim);
#ifndef HAVE_XICCALLBACK_CALLBACK
#define XICCallback XIMCallback
#define XICProc XIMProc
#endif
BOOL ximInComposeMode=FALSE;
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/* moved here from imm32 for dll separation */
static DWORD dwCompStringLength = 0;
static LPBYTE CompositionString = NULL;
static DWORD dwCompStringSize = 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)
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/* in order to enable deadkey support */
#define STYLE_NONE (XIMPreeditNothing | XIMStatusNothing)
static XIMStyle ximStyle = 0;
static XIMStyle ximStyleRoot = 0;
static XIMStyle ximStyleRequest = STYLE_CALLBACK;
static void X11DRV_ImmSetInternalString(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);
int byte_expansion = byte_length - byte_selection;
LPBYTE ptr_new;
TRACE("( %i, %i, %p, %d):\n", dwOffset, selLength, lpComp, dwCompLen );
if (byte_expansion + dwCompStringLength >= dwCompStringSize)
{
if (CompositionString)
ptr_new = HeapReAlloc(GetProcessHeap(), 0, CompositionString,
dwCompStringSize + byte_expansion);
else
ptr_new = HeapAlloc(GetProcessHeap(), 0,
dwCompStringSize + byte_expansion);
if (ptr_new == NULL)
{
ERR("Couldn't expand composition string buffer\n");
return;
}
CompositionString = ptr_new;
dwCompStringSize += byte_expansion;
}
ptr_new = CompositionString + byte_offset;
memmove(ptr_new + byte_length, ptr_new + byte_selection,
dwCompStringLength - byte_offset - byte_selection);
if (lpComp) memcpy(ptr_new, lpComp, byte_length);
dwCompStringLength += byte_expansion;
IME_SetCompositionString(SCS_SETSTR, CompositionString,
dwCompStringLength, NULL, 0);
}
void X11DRV_XIMLookupChars( const char *str, DWORD count )
{
DWORD dwOutput;
WCHAR *wcOutput;
HWND focus;
TRACE("%p %u\n", str, count);
dwOutput = MultiByteToWideChar(CP_UNIXCP, 0, str, count, NULL, 0);
wcOutput = HeapAlloc(GetProcessHeap(), 0, sizeof(WCHAR) * dwOutput);
if (wcOutput == NULL)
return;
MultiByteToWideChar(CP_UNIXCP, 0, str, count, wcOutput, dwOutput);
if ((focus = GetFocus()))
IME_UpdateAssociation(focus);
IME_SetResultString(wcOutput, dwOutput);
HeapFree(GetProcessHeap(), 0, wcOutput);
}
static BOOL XIMPreEditStateNotifyCallback(XIC xic, XPointer p, XPointer data)
{
const struct x11drv_win_data * const win_data = (struct x11drv_win_data *)p;
const XIMPreeditState state = ((XIMPreeditStateNotifyCallbackStruct *)data)->state;
TRACE("xic = %p, win = %lx, state = %lu\n", xic, win_data->whole_window, state);
switch (state)
{
case XIMPreeditEnable:
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IME_SetOpenStatus(TRUE);
break;
case XIMPreeditDisable:
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IME_SetOpenStatus(FALSE);
break;
default:
break;
}
return TRUE;
}
static int XIMPreEditStartCallback(XIC ic, XPointer client_data, XPointer call_data)
{
TRACE("PreEditStartCallback %p\n",ic);
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IME_SetCompositionStatus(TRUE);
ximInComposeMode = TRUE;
return -1;
}
static void XIMPreEditDoneCallback(XIC ic, XPointer client_data, XPointer call_data)
{
TRACE("PreeditDoneCallback %p\n",ic);
ximInComposeMode = FALSE;
if (dwCompStringSize)
HeapFree(GetProcessHeap(), 0, CompositionString);
dwCompStringSize = 0;
dwCompStringLength = 0;
CompositionString = NULL;
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IME_SetCompositionStatus(FALSE);
}
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 (sel, len, wcOutput, dwOutput);
HeapFree(GetProcessHeap(), 0, wcOutput);
}
}
else
{
FIXME("wchar PROBIBILY WRONG\n");
X11DRV_ImmSetInternalString (sel, len,
(LPWSTR)P_DR->text->string.wide_char,
P_DR->text->length);
}
}
else
X11DRV_ImmSetInternalString (sel, len, NULL, 0);
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IME_SetCursorPos(P_DR->caret);
}
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;
}
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IME_SetCursorPos(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);
leftover = XmbResetIC(ic);
XFree(leftover);
}
}
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void X11DRV_SetPreeditState(HWND hwnd, BOOL fOpen)
{
XIC ic;
XIMPreeditState state;
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XVaNestedList attr;
ic = X11DRV_get_ic(hwnd);
if (!ic)
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return;
if (fOpen)
state = XIMPreeditEnable;
else
state = XIMPreeditDisable;
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attr = XVaCreateNestedList(0, XNPreeditState, state, NULL);
if (attr != NULL)
{
XSetICValues(ic, XNPreeditAttributes, attr, NULL);
XFree(attr);
}
}
/***********************************************************************
* X11DRV_InitXIM
*
* Process-wide XIM initialization.
*/
BOOL X11DRV_InitXIM( const char *input_style )
{
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;
if (!XSupportsLocale())
{
WARN("X does not support locale.\n");
return FALSE;
}
if (XSetLocaleModifiers("") == NULL)
{
WARN("Could not set locale modifiers.\n");
return FALSE;
}
return TRUE;
}
static void open_xim_callback( Display *display, XPointer ptr, 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;
XRegisterIMInstantiateCallback( thread_data->display, NULL, NULL, NULL, open_xim_callback, NULL );
}
/***********************************************************************
* X11DRV Ime creation
*
* Should always be called with the x11 lock held
*/
static BOOL open_xim( Display *display )
{
struct x11drv_thread_data *thread_data = x11drv_thread_data();
XIMStyle ximStyleCallback, ximStyleNone;
XIMStyles *ximStyles = NULL;
INT i;
XIM xim;
XIMCallback destroy;
xim = XOpenIM(display, NULL, NULL, NULL);
if (xim == NULL)
{
WARN("Could not open input method.\n");
return FALSE;
}
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);
return FALSE;
}
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)
{
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TRACE("No callback style available\n");
ximStyleCallback = ximStyle;
}
}
thread_data->xim = xim;
if ((ximStyle & (XIMPreeditNothing | XIMPreeditNone)) == 0 ||
(ximStyle & (XIMStatusNothing | XIMStatusNone)) == 0)
{
char **list;
int count;
thread_data->font_set = XCreateFontSet(display, "fixed",
&list, &count, NULL);
TRACE("ximFontSet = %p\n", thread_data->font_set);
TRACE("list = %p, count = %d\n", list, count);
if (list != NULL)
{
int i;
for (i = 0; i < count; ++i)
TRACE("list[%d] = %s\n", i, list[i]);
XFreeStringList(list);
}
}
else
thread_data->font_set = NULL;
IME_UpdateAssociation(NULL);
return TRUE;
}
static void open_xim_callback( Display *display, XPointer ptr, XPointer data )
{
if (open_xim( display ))
XUnregisterIMInstantiateCallback( display, NULL, NULL, NULL, open_xim_callback, NULL);
}
void X11DRV_SetupXIM(void)
{
Display *display = thread_display();
if (!open_xim( display ))
XRegisterIMInstantiateCallback( display, NULL, NULL, NULL, open_xim_callback, NULL );
}
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};
XICCallback P_StateNotifyCB, P_StartCB, P_DoneCB, P_DrawCB, P_CaretCB;
LANGID langid = PRIMARYLANGID(LANGIDFROMLCID(GetThreadLocale()));
Window win = data->whole_window;
XFontSet fontSet = x11drv_thread_data()->font_set;
TRACE("xim = %p\n", xim);
/* 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);
data->xic = xic;
return xic;
}
/* create callbacks */
P_StateNotifyCB.client_data = (XPointer)data;
P_StartCB.client_data = NULL;
P_DoneCB.client_data = NULL;
P_DrawCB.client_data = NULL;
P_CaretCB.client_data = NULL;
P_StateNotifyCB.callback = XIMPreEditStateNotifyCallback;
P_StartCB.callback = XIMPreEditStartCallback;
P_DoneCB.callback = (XICProc)XIMPreEditDoneCallback;
P_DrawCB.callback = (XICProc)XIMPreEditDrawCallback;
P_CaretCB.callback = (XICProc)XIMPreEditCaretCallback;
if ((ximStyle & (XIMPreeditNothing | XIMPreeditNone)) == 0)
{
preedit = XVaCreateNestedList(0,
XNFontSet, fontSet,
XNSpotLocation, &spot,
XNPreeditStateNotifyCallback, &P_StateNotifyCB,
XNPreeditStartCallback, &P_StartCB,
XNPreeditDoneCallback, &P_DoneCB,
XNPreeditDrawCallback, &P_DrawCB,
XNPreeditCaretCallback, &P_CaretCB,
NULL);
TRACE("preedit = %p\n", preedit);
}
else
{
preedit = XVaCreateNestedList(0,
XNPreeditStateNotifyCallback, &P_StateNotifyCB,
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,
XNFontSet, fontSet,
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);
return xic;
}