unsigned int detect_keyboard_layout_from_xkb(void *dpy)
{
char *layout, *variant;
unsigned int keyboard_layout = 0, group = 0;
XkbRF_VarDefsRec rules_names;
XKeyboardState coreKbdState;
XkbStateRec state;
DEBUG_KBD("display: %p", dpy);
if (dpy && XkbRF_GetNamesProp(dpy, NULL, &rules_names))
{
DEBUG_KBD("layouts: %s", rules_names.layout);
DEBUG_KBD("variants: %s", rules_names.variant);
XGetKeyboardControl(dpy, &coreKbdState);
if (XkbGetState(dpy, XkbUseCoreKbd, &state) == Success)
group = state.group;
DEBUG_KBD("group: %d", state.group);
layout = comma_substring(rules_names.layout, group);
variant = comma_substring(rules_names.variant, group);
DEBUG_KBD("layout: %s", layout);
DEBUG_KBD("variant: %s", variant);
keyboard_layout = find_keyboard_layout_in_xorg_rules(layout, variant);
free(rules_names.model);
free(rules_names.layout);
free(rules_names.variant);
free(rules_names.options);
}
return keyboard_layout;
}
int freerdp_detect_keyboard_layout_from_xkb(DWORD* keyboardLayoutId)
{
char* pch;
char* beg;
char* end;
FILE* xprop;
char buffer[1024];
char* layout = NULL;
char* variant = NULL;
/* We start by looking for _XKB_RULES_NAMES_BACKUP which appears to be used by libxklavier */
xprop = popen("xprop -root _XKB_RULES_NAMES_BACKUP", "r");
/* Sample output for "Canadian Multilingual Standard"
*
* _XKB_RULES_NAMES_BACKUP(STRING) = "xorg", "pc105", "ca", "multix", ""
* Where "xorg" is the set of rules
* "pc105" the keyboard type
* "ca" the keyboard layout
* "multi" the keyboard layout variant
*/
while (fgets(buffer, sizeof(buffer), xprop) != NULL)
{
if ((pch = strstr(buffer, "_XKB_RULES_NAMES_BACKUP(STRING) = ")) != NULL)
{
/* "rules" */
pch = strchr(&buffer[34], ','); /* We assume it is xorg */
pch += 1;
/* "type" */
pch = strchr(pch, ',');
/* "layout" */
beg = strchr(pch + 1, '"');
beg += 1;
end = strchr(beg, '"');
*end = '\0';
layout = beg;
/* "variant" */
beg = strchr(end + 1, '"');
beg += 1;
end = strchr(beg, '"');
*end = '\0';
variant = beg;
}
}
pclose(xprop);
DEBUG_KBD("_XKB_RULES_NAMES_BACKUP layout: %s, variant: %s", layout, variant);
*keyboardLayoutId = find_keyboard_layout_in_xorg_rules(layout, variant);
if (*keyboardLayoutId > 0)
return 0;
/* Check _XKB_RULES_NAMES if _XKB_RULES_NAMES_BACKUP fails */
xprop = popen("xprop -root _XKB_RULES_NAMES", "r");
while (fgets(buffer, sizeof(buffer), xprop) != NULL)
{
if ((pch = strstr(buffer, "_XKB_RULES_NAMES(STRING) = ")) != NULL)
{
/* "rules" */
pch = strchr(&buffer[27], ','); // We assume it is xorg
pch += 1;
/* "type" */
pch = strchr(pch, ',');
/* "layout" */
beg = strchr(pch + 1, '"');
beg += 1;
end = strchr(beg, '"');
*end = '\0';
layout = beg;
/* "variant" */
beg = strchr(end + 1, '"');
beg += 1;
end = strchr(beg, '"');
*end = '\0';
variant = beg;
}
}
pclose(xprop);
DEBUG_KBD("_XKB_RULES_NAMES layout: %s, variant: %s", layout, variant);
*keyboardLayoutId = find_keyboard_layout_in_xorg_rules(layout, variant);
if (*keyboardLayoutId > 0)
return *keyboardLayoutId;
return 0;
}
static unsigned int
detect_keyboard_layout_from_xkb()
{
FILE* xprop;
char* pch;
char* beg;
char* end;
char* layout = NULL;
char* variant = NULL;
char buffer[1024];
unsigned int keyboard_layout = 0;
xprop = popen("xprop -root _XKB_RULES_NAMES", "r");
/* _XKB_RULES_NAMES(STRING) = "evdev", "pc105", "gb", "", "lv3:ralt_switch" */
/* _XKB_RULES_NAMES(STRING) = "evdev", "evdev", "us,dk,gb", ",,", "grp:shift_caps_toggle" */
while(fgets(buffer, sizeof(buffer), xprop) != NULL)
{
if((pch = strstr(buffer, "_XKB_RULES_NAMES(STRING) = ")) != NULL)
{
/* Skip "rules" */
pch = strchr(&buffer[27], ',');
if (pch == NULL)
continue;
/* Skip "type" */
pch = strchr(pch + 1, ',');
if (pch == NULL)
continue;
/* Parse "layout" */
beg = strchr(pch + 1, '"');
if (beg == NULL)
continue;
end = strchr(beg + 1, '"');
if (end == NULL)
continue;
*end = '\0';
layout = beg + 1;
/* Truncate after first of multiple layouts */
pch = strchr(layout, ',');
if (pch != NULL)
*pch = '\0';
/* Parse "variant" */
beg = strchr(end + 1, '"');
if (beg == NULL)
continue;
end = strchr(beg + 1, '"');
if (end == NULL)
continue;
*end = '\0';
variant = beg + 1;
/* Truncate after first of multiple variants */
pch = strchr(variant, ',');
if (pch != NULL)
*pch = '\0';
}
}
pclose(xprop);
keyboard_layout = find_keyboard_layout_in_xorg_rules(layout, variant);
return keyboard_layout;
}
