FreeRDP/libfreerdp/locale/keyboard_x11.c

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/**
* FreeRDP: A Remote Desktop Protocol Implementation
* X11 Keyboard Mapping
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*
* Copyright 2009-2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
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*
* 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
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <winpr/crt.h>
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#include "liblocale.h"
#include <freerdp/locale/locale.h>
#include <freerdp/locale/keyboard.h>
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#include "keyboard_x11.h"
#include "keyboard_keymap.h"
#include "xkb_layout_ids.h"
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#ifdef WITH_SUN
#include "keyboard_sun.h"
#endif
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extern const RDP_SCANCODE VIRTUAL_KEY_CODE_TO_DEFAULT_RDP_SCANCODE_TABLE[256];
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UINT32 freerdp_detect_keyboard_layout_from_xkb(char** xkb_layout, char** xkb_variant)
{
char* pch;
char* beg;
char* end;
FILE* xprop;
char buffer[1024];
char* layout = NULL;
char* variant = NULL;
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UINT32 keyboardLayoutId = 0;
/* 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)
{
*xkb_layout = _strdup(layout);
*xkb_variant = _strdup(variant);
return keyboardLayoutId;
}
/* 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)
{
*xkb_layout = _strdup(layout);
*xkb_variant = _strdup(variant);
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");
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);
strncpy(keymap, beg, length);
keymap[length] = '\0';
break;
}
}
}
pclose(setxkbmap);
return keymap;
}
#ifdef __APPLE__
const UINT32 KEYCODE_TO_VKCODE_MACOSX[256] =
{
0, /* 0 */
0, /* 1 */
0, /* 2 */
0, /* 3 */
0, /* 4 */
0, /* 5 */
0, /* 6 */
0, /* 7 */
VK_KEY_A, /* 8 */
VK_KEY_S, /* 9 */
VK_KEY_D, /* 10 */
VK_KEY_F, /* 11 */
VK_KEY_H, /* 12 */
VK_KEY_G, /* 13 */
VK_KEY_Z, /* 14 */
VK_KEY_X, /* 15 */
VK_KEY_C, /* 16 */
VK_KEY_V, /* 17 */
VK_OEM_102, /* 18 */
VK_KEY_B, /* 19 */
VK_KEY_Q, /* 20 */
VK_KEY_W, /* 21 */
VK_KEY_E, /* 22 */
VK_KEY_R, /* 23 */
VK_KEY_Y, /* 24 */
VK_KEY_T, /* 25 */
VK_KEY_1, /* 26 */
VK_KEY_2, /* 27 */
VK_KEY_3, /* 28 */
VK_KEY_4, /* 29 */
VK_KEY_6, /* 30 */
VK_KEY_5, /* 31 */
VK_OEM_PLUS, /* 32 */
VK_KEY_9, /* 33 */
VK_KEY_7, /* 34 */
VK_OEM_MINUS, /* 35 */
VK_KEY_8, /* 36 */
VK_KEY_0, /* 37 */
VK_OEM_6, /* 38 */
VK_KEY_O, /* 39 */
VK_KEY_U, /* 40 */
VK_OEM_4, /* 41 */
VK_KEY_I, /* 42 */
VK_KEY_P, /* 43 */
VK_RETURN, /* 44 */
VK_KEY_L, /* 45 */
VK_KEY_J, /* 46 */
VK_OEM_7, /* 47 */
VK_KEY_K, /* 48 */
VK_OEM_1, /* 49 */
VK_OEM_5, /* 50 */
VK_OEM_COMMA, /* 51 */
VK_OEM_2, /* 52 */
VK_KEY_N, /* 53 */
VK_KEY_M, /* 54 */
VK_OEM_PERIOD, /* 55 */
VK_TAB, /* 56 */
VK_SPACE, /* 57 */
VK_OEM_3, /* 58 */
VK_BACK, /* 59 */
0, /* 60 */
VK_ESCAPE, /* 61 */
0, /* 62 */
VK_LWIN, /* 63 */
VK_LSHIFT, /* 64 */
VK_CAPITAL, /* 65 */
VK_LMENU, /* 66 */
VK_LCONTROL, /* 67 */
VK_RSHIFT, /* 68 */
0, /* 69 */
0, /* 70 */
VK_RMENU, /* 71 */
0, /* 72 */
VK_DECIMAL, /* 73 */
0, /* 74 */
VK_MULTIPLY, /* 75 */
0, /* 76 */
VK_ADD, /* 77 */
0, /* 78 */
VK_NUMLOCK, /* 79 */
0, /* 80 */
0, /* 81 */
0, /* 82 */
VK_DIVIDE, /* 83 */
VK_RETURN, /* 84 */
0, /* 85 */
VK_SUBTRACT, /* 86 */
0, /* 87 */
0, /* 88 */
0, /* 89 */
VK_NUMPAD0, /* 90 */
VK_NUMPAD1, /* 91 */
VK_NUMPAD2, /* 92 */
VK_NUMPAD3, /* 93 */
VK_NUMPAD4, /* 94 */
VK_NUMPAD5, /* 95 */
VK_NUMPAD6, /* 96 */
VK_NUMPAD7, /* 97 */
0, /* 98 */
VK_NUMPAD8, /* 99 */
VK_NUMPAD9, /* 100 */
0, /* 101 */
0, /* 102 */
0, /* 103 */
VK_F5, /* 104 */
VK_F6, /* 105 */
VK_F7, /* 106 */
VK_F3, /* 107 */
VK_F8, /* 108 */
VK_F9, /* 109 */
0, /* 110 */
VK_F11, /* 111 */
0, /* 112 */
VK_SNAPSHOT, /* 113 */
0, /* 114 */
VK_SCROLL, /* 115 */
0, /* 116 */
VK_F10, /* 117 */
0, /* 118 */
VK_F12, /* 119 */
0, /* 120 */
VK_PAUSE, /* 121 */
VK_INSERT, /* 122 */
VK_HOME, /* 123 */
VK_PRIOR, /* 124 */
VK_DELETE, /* 125 */
VK_F4, /* 126 */
VK_END, /* 127 */
VK_F2, /* 128 */
VK_NEXT, /* 129 */
VK_F1, /* 130 */
VK_LEFT, /* 131 */
VK_RIGHT, /* 132 */
VK_DOWN, /* 133 */
VK_UP, /* 134 */
0, /* 135 */
0, /* 136 */
0, /* 137 */
0, /* 138 */
0, /* 139 */
0, /* 140 */
0, /* 141 */
0, /* 142 */
0, /* 143 */
0, /* 144 */
0, /* 145 */
0, /* 146 */
0, /* 147 */
0, /* 148 */
0, /* 149 */
0, /* 150 */
0, /* 151 */
0, /* 152 */
0, /* 153 */
0, /* 154 */
0, /* 155 */
0, /* 156 */
0, /* 157 */
0, /* 158 */
0, /* 159 */
0, /* 160 */
0, /* 161 */
0, /* 162 */
0, /* 163 */
0, /* 164 */
0, /* 165 */
0, /* 166 */
0, /* 167 */
0, /* 168 */
0, /* 169 */
0, /* 170 */
0, /* 171 */
0, /* 172 */
0, /* 173 */
0, /* 174 */
0, /* 175 */
0, /* 176 */
0, /* 177 */
0, /* 178 */
0, /* 179 */
0, /* 180 */
0, /* 181 */
0, /* 182 */
0, /* 183 */
0, /* 184 */
0, /* 185 */
0, /* 186 */
0, /* 187 */
0, /* 188 */
0, /* 189 */
0, /* 190 */
0, /* 191 */
0, /* 192 */
0, /* 193 */
0, /* 194 */
0, /* 195 */
0, /* 196 */
0, /* 197 */
0, /* 198 */
0, /* 199 */
0, /* 200 */
0, /* 201 */
0, /* 202 */
0, /* 203 */
0, /* 204 */
0, /* 205 */
0, /* 206 */
0, /* 207 */
0, /* 208 */
0, /* 209 */
0, /* 210 */
0, /* 211 */
0, /* 212 */
0, /* 213 */
0, /* 214 */
0, /* 215 */
0, /* 216 */
0, /* 217 */
0, /* 218 */
0, /* 219 */
0, /* 220 */
0, /* 221 */
0, /* 222 */
0, /* 223 */
0, /* 224 */
0, /* 225 */
0, /* 226 */
0, /* 227 */
0, /* 228 */
0, /* 229 */
0, /* 230 */
0, /* 231 */
0, /* 232 */
0, /* 233 */
0, /* 234 */
0, /* 235 */
0, /* 236 */
0, /* 237 */
0, /* 238 */
0, /* 239 */
0, /* 240 */
0, /* 241 */
0, /* 242 */
0, /* 243 */
0, /* 244 */
0, /* 245 */
0, /* 246 */
0, /* 247 */
0, /* 248 */
0, /* 249 */
0, /* 250 */
0, /* 251 */
0, /* 252 */
0, /* 253 */
0, /* 254 */
0 /* 255 */
};
#endif
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UINT32 freerdp_keyboard_init_x11(UINT32 keyboardLayoutId, RDP_SCANCODE x11_keycode_to_rdp_scancode[256])
{
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UINT32 vkcode;
UINT32 keycode;
UINT32 keycode_to_vkcode[256];
ZeroMemory(keycode_to_vkcode, sizeof(keycode_to_vkcode));
ZeroMemory(x11_keycode_to_rdp_scancode, sizeof(x11_keycode_to_rdp_scancode));
#ifdef __APPLE__
/* Apple X11 breaks XKB detection */
CopyMemory(keycode_to_vkcode, KEYCODE_TO_VKCODE_MACOSX, sizeof(keycode_to_vkcode));
freerdp_keyboard_load_map(keycode_to_vkcode, "macosx(macosx)");
#elif defined(WITH_SUN)
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{
char sunkeymap[32];
freerdp_detect_keyboard_type_and_layout_solaris(sunkeymap, sizeof(sunkeymap));
freerdp_keyboard_load_map(keycode_to_vkcode, sunkeymap);
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}
#else
{
char* keymap;
char* xkb_layout = 0;
char* xkb_variant = 0;
if (keyboardLayoutId == 0)
{
keyboardLayoutId = freerdp_detect_keyboard_layout_from_xkb(&xkb_layout, &xkb_variant);
if (xkb_layout)
free(xkb_layout);
if (xkb_variant)
free(xkb_variant);
}
keymap = freerdp_detect_keymap_from_xkb();
if (keymap != NULL)
{
freerdp_keyboard_load_maps(keycode_to_vkcode, keymap);
free(keymap);
}
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}
#endif
for (keycode = 0; keycode < 256; keycode++)
{
vkcode = keycode_to_vkcode[keycode];
if (!(vkcode > 0 && vkcode < 256))
continue;
x11_keycode_to_rdp_scancode[keycode] = VIRTUAL_KEY_CODE_TO_DEFAULT_RDP_SCANCODE_TABLE[vkcode];
}
return keyboardLayoutId;
}