98 lines
1.9 KiB
C
98 lines
1.9 KiB
C
/* See LICENSE file for copyright and license details. */
|
|
#include <ctype.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <X11/XKBlib.h>
|
|
#include <X11/Xlib.h>
|
|
|
|
#include "../util.h"
|
|
|
|
#define LAYOUT_MAX 256
|
|
|
|
/* Given a token (sym) from the xkb_symbols string
|
|
* check whether it is a valid layout/variant. The
|
|
* EXCLUDES array contains invalid layouts/variants
|
|
* that are part of the xkb rules config.
|
|
*/
|
|
static int
|
|
IsLayoutOrVariant(char *sym)
|
|
{
|
|
static const char* EXCLUDES[] = { "evdev", "inet", "pc", "base" };
|
|
|
|
size_t i;
|
|
for (i = 0; i < sizeof(EXCLUDES)/sizeof(EXCLUDES[0]); ++i)
|
|
if (strstr(sym, EXCLUDES[i])) {
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
GetKeyLayout(char *syms, char layout[], int groupNum)
|
|
{
|
|
char *token, *copy, *delims;
|
|
int group;
|
|
|
|
delims = "+:";
|
|
group = 0;
|
|
copy = strdup(syms);
|
|
token = strtok(copy, delims);
|
|
while (token != NULL && group <= groupNum) {
|
|
/* Ignore :2,:3,:4 which represent additional layout
|
|
* groups
|
|
*/
|
|
if (IsLayoutOrVariant(token)
|
|
&& !(strlen(token) == 1 && isdigit(token[0]))) {
|
|
strncpy (layout, token, LAYOUT_MAX);
|
|
group++;
|
|
}
|
|
|
|
token = strtok(NULL,delims);
|
|
}
|
|
|
|
free(copy);
|
|
}
|
|
|
|
const char *
|
|
keymap(void)
|
|
{
|
|
static char layout[LAYOUT_MAX];
|
|
|
|
Display *dpy;
|
|
char *symbols = NULL;
|
|
XkbDescRec* desc = NULL;
|
|
|
|
memset(layout, '\0', LAYOUT_MAX);
|
|
|
|
if (!(dpy = XOpenDisplay(NULL))) {
|
|
warn("XOpenDisplay: Failed to open display");
|
|
return NULL;
|
|
}
|
|
|
|
;
|
|
if (!(desc = XkbAllocKeyboard())) {
|
|
warn("XkbAllocKeyboard: failed to allocate keyboard");
|
|
XCloseDisplay(dpy);
|
|
return NULL;
|
|
}
|
|
|
|
XkbGetNames(dpy, XkbSymbolsNameMask, desc);
|
|
if (desc->names) {
|
|
XkbStateRec state;
|
|
XkbGetState(dpy, XkbUseCoreKbd, &state);
|
|
|
|
symbols = XGetAtomName(dpy, desc->names->symbols);
|
|
GetKeyLayout(symbols, layout, state.group);
|
|
XFree(symbols);
|
|
} else {
|
|
warn("XkbGetNames: failed to retrieve symbols for keys");
|
|
return NULL;
|
|
}
|
|
|
|
XkbFreeKeyboard(desc, XkbSymbolsNameMask, 1);
|
|
XCloseDisplay(dpy);
|
|
|
|
return layout;
|
|
}
|