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Fixed bug 3458 - x11: reset deadkeys in StartTextInput/StopTextInput

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Eric Wasylishen

The patch makes StartTextInput/StopTextInput call Xutf8ResetIC ( https://www.x.org/releases/X11R7.5/doc/man/man3/XmbResetIC.3.html ) on the XIC of all SDL windows.

This fixes my use case in Quakespasm (Ubuntu 16.04, system keyboard layout set to German. Type the '^' dead key, which opens Quakespasm's developer console and calls SDL_StartTextInput, then press 'e'. I expect the dead key to be ignored.)

Also, here is a patch for sdl2's "checkkeys" for testing this: https://bugzilla-attachments.libsdl.org/attachment.cgi?id=2451
This commit is contained in:
Sam Lantinga 2016-10-17 21:37:26 -07:00
parent ba051ae7d9
commit 5af67f49f4
2 changed files with 25 additions and 1 deletions
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25
src/video/x11/SDL_x11keyboard.c
View File

@ -427,15 +427,38 @@ X11_QuitKeyboard(_THIS)
#endif
}
static void
X11_ResetXIM(_THIS)
{
#ifdef X_HAVE_UTF8_STRING
SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;
int i;
if (videodata && videodata->windowlist) {
for (i = 0; i < videodata->numwindows; ++i) {
SDL_WindowData *data = videodata->windowlist[i];
if (data && data->ic) {
/* Clear any partially entered dead keys */
char *contents = X11_Xutf8ResetIC(data->ic);
if (contents) {
X11_XFree(contents);
}
}
}
}
#endif
}
void
X11_StartTextInput(_THIS)
{
X11_ResetXIM(_this);
}
void
X11_StopTextInput(_THIS)
{
X11_ResetXIM(_this);
#ifdef SDL_USE_IME
SDL_IME_Reset();
#endif

1
src/video/x11/SDL_x11sym.h
View File

@ -201,6 +201,7 @@ SDL_X11_SYM(Status,XCloseIM,(XIM a),(a),return)
SDL_X11_SYM(void,Xutf8DrawString,(Display *a, Drawable b, XFontSet c, GC d, int e, int f, _Xconst char *g, int h),(a,b,c,d,e,f,g,h),)
SDL_X11_SYM(int,Xutf8TextExtents,(XFontSet a, _Xconst char* b, int c, XRectangle* d, XRectangle* e),(a,b,c,d,e),return)
SDL_X11_SYM(char*,XSetLocaleModifiers,(const char *a),(a),return)
SDL_X11_SYM(char*,Xutf8ResetIC,(XIC a),(a),return)
#endif
#ifndef NO_SHARED_MEMORY