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/**
* FreeRDP: A Remote Desktop Protocol Implementation
* X11 Keyboard Mapping
*
* Copyright 2009-2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <winpr/crt.h>
#include <winpr/input.h>
#include "liblocale.h"
#include <freerdp/locale/locale.h>
#include <freerdp/locale/keyboard.h>
#include "keyboard_x11.h"
#include "xkb_layout_ids.h"
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 */
if (!(xprop = popen("xprop -root _XKB_RULES_NAMES_BACKUP", "r")))
return 0;
/* 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 */
if (!(xprop = popen("xprop -root _XKB_RULES_NAMES", "r")))
return 0;
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;
}
char* freerdp_detect_keymap_from_xkb()
{
char* pch;
char* beg;
char* end;
int length;
FILE* setxkbmap;
char buffer[1024];
char* keymap = NULL;
/* this tells us about the current XKB configuration, if XKB is available */
setxkbmap = popen("setxkbmap -print", "r");
if (!setxkbmap)
return NULL;
while (fgets(buffer, sizeof(buffer), setxkbmap) != NULL)
{
/* the line with xkb_keycodes is what interests us */
pch = strstr(buffer, "xkb_keycodes");
if (pch != NULL)
{
pch = strstr(pch, "include");
if (pch != NULL)
{
/* check for " " delimiter presence */
if ((beg = strchr(pch, '"')) == NULL)
break;
else
beg++;
if ((pch = strchr(beg + 1, '"')) == NULL)
break;
end = strcspn(beg + 1, "\"") + beg + 1;
*end = '\0';
length = (end - beg);
keymap = (char*) malloc(length + 1);
if (keymap) {
strncpy(keymap, beg, length);
keymap[length] = '\0';
}
break;
}
}
}
pclose(setxkbmap);
return keymap;
}
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