| 1 |
/* |
| 2 |
rdesktop: A Remote Desktop Protocol client. |
| 3 |
User interface services - X keyboard mapping |
| 4 |
Copyright (C) Matthew Chapman 1999-2002 |
| 5 |
|
| 6 |
This program is free software; you can redistribute it and/or modify |
| 7 |
it under the terms of the GNU General Public License as published by |
| 8 |
the Free Software Foundation; either version 2 of the License, or |
| 9 |
(at your option) any later version. |
| 10 |
|
| 11 |
This program is distributed in the hope that it will be useful, |
| 12 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
GNU General Public License for more details. |
| 15 |
|
| 16 |
You should have received a copy of the GNU General Public License |
| 17 |
along with this program; if not, write to the Free Software |
| 18 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 19 |
*/ |
| 20 |
|
| 21 |
#include <X11/Xlib.h> |
| 22 |
#define XK_MISCELLANY |
| 23 |
#include <X11/keysymdef.h> |
| 24 |
#include <ctype.h> |
| 25 |
#include <limits.h> |
| 26 |
#include <time.h> |
| 27 |
#include "rdesktop.h" |
| 28 |
#include "scancodes.h" |
| 29 |
|
| 30 |
#define KEYMAP_SIZE 4096 |
| 31 |
#define KEYMAP_MASK (KEYMAP_SIZE - 1) |
| 32 |
#define KEYMAP_MAX_LINE_LENGTH 80 |
| 33 |
|
| 34 |
extern Display *display; |
| 35 |
extern char keymapname[16]; |
| 36 |
extern int keylayout; |
| 37 |
extern BOOL enable_compose; |
| 38 |
|
| 39 |
static BOOL keymap_loaded; |
| 40 |
static key_translation keymap[KEYMAP_SIZE]; |
| 41 |
static int min_keycode; |
| 42 |
static uint16 remote_modifier_state = 0; |
| 43 |
|
| 44 |
static void update_modifier_state(uint8 scancode, BOOL pressed); |
| 45 |
|
| 46 |
static void |
| 47 |
add_to_keymap(char *keyname, uint8 scancode, uint16 modifiers, char *mapname) |
| 48 |
{ |
| 49 |
KeySym keysym; |
| 50 |
|
| 51 |
keysym = XStringToKeysym(keyname); |
| 52 |
if (keysym == NoSymbol) |
| 53 |
{ |
| 54 |
error("Bad keysym %s in keymap %s\n", keyname, mapname); |
| 55 |
return; |
| 56 |
} |
| 57 |
|
| 58 |
DEBUG_KBD(("Adding translation, keysym=0x%x, scancode=0x%x, " |
| 59 |
"modifiers=0x%x\n", (unsigned int) keysym, scancode, modifiers)); |
| 60 |
|
| 61 |
keymap[keysym & KEYMAP_MASK].scancode = scancode; |
| 62 |
keymap[keysym & KEYMAP_MASK].modifiers = modifiers; |
| 63 |
|
| 64 |
return; |
| 65 |
} |
| 66 |
|
| 67 |
|
| 68 |
static BOOL |
| 69 |
xkeymap_read(char *mapname) |
| 70 |
{ |
| 71 |
FILE *fp; |
| 72 |
char line[KEYMAP_MAX_LINE_LENGTH]; |
| 73 |
char path[PATH_MAX], inplace_path[PATH_MAX]; |
| 74 |
unsigned int line_num = 0; |
| 75 |
unsigned int line_length = 0; |
| 76 |
char *keyname, *p; |
| 77 |
char *line_rest; |
| 78 |
uint8 scancode; |
| 79 |
uint16 modifiers; |
| 80 |
|
| 81 |
|
| 82 |
strcpy(path, KEYMAP_PATH); |
| 83 |
strncat(path, mapname, sizeof(path) - sizeof(KEYMAP_PATH)); |
| 84 |
|
| 85 |
fp = fopen(path, "r"); |
| 86 |
if (fp == NULL) |
| 87 |
{ |
| 88 |
/* in case we are running from the source tree */ |
| 89 |
strcpy(inplace_path, "keymaps/"); |
| 90 |
strncat(inplace_path, mapname, sizeof(inplace_path) - sizeof("keymaps/")); |
| 91 |
|
| 92 |
fp = fopen(inplace_path, "r"); |
| 93 |
if (fp == NULL) |
| 94 |
{ |
| 95 |
error("Failed to open keymap %s\n", path); |
| 96 |
return False; |
| 97 |
} |
| 98 |
} |
| 99 |
|
| 100 |
/* FIXME: More tolerant on white space */ |
| 101 |
while (fgets(line, sizeof(line), fp) != NULL) |
| 102 |
{ |
| 103 |
line_num++; |
| 104 |
|
| 105 |
/* Replace the \n with \0 */ |
| 106 |
p = strchr(line, '\n'); |
| 107 |
if (p != NULL) |
| 108 |
*p = 0; |
| 109 |
|
| 110 |
line_length = strlen(line); |
| 111 |
|
| 112 |
/* Completely empty line */ |
| 113 |
if (strspn(line, " \t\n\r\f\v") == line_length) |
| 114 |
{ |
| 115 |
continue; |
| 116 |
} |
| 117 |
|
| 118 |
/* Include */ |
| 119 |
if (strncmp(line, "include ", 8) == 0) |
| 120 |
{ |
| 121 |
if (!xkeymap_read(line + 8)) |
| 122 |
return False; |
| 123 |
continue; |
| 124 |
} |
| 125 |
|
| 126 |
/* map */ |
| 127 |
if (strncmp(line, "map ", 4) == 0) |
| 128 |
{ |
| 129 |
keylayout = strtol(line + 4, NULL, 16); |
| 130 |
DEBUG_KBD(("Keylayout 0x%x\n", keylayout)); |
| 131 |
continue; |
| 132 |
} |
| 133 |
|
| 134 |
/* compose */ |
| 135 |
if (strncmp(line, "enable_compose", 15) == 0) |
| 136 |
{ |
| 137 |
DEBUG_KBD(("Enabling compose handling\n")); |
| 138 |
enable_compose = True; |
| 139 |
continue; |
| 140 |
} |
| 141 |
|
| 142 |
/* Comment */ |
| 143 |
if (line[0] == '#') |
| 144 |
{ |
| 145 |
continue; |
| 146 |
} |
| 147 |
|
| 148 |
/* Normal line */ |
| 149 |
keyname = line; |
| 150 |
p = strchr(line, ' '); |
| 151 |
if (p == NULL) |
| 152 |
{ |
| 153 |
error("Bad line %d in keymap %s\n", line_num, mapname); |
| 154 |
continue; |
| 155 |
} |
| 156 |
else |
| 157 |
{ |
| 158 |
*p = 0; |
| 159 |
} |
| 160 |
|
| 161 |
/* scancode */ |
| 162 |
p++; |
| 163 |
scancode = strtol(p, &line_rest, 16); |
| 164 |
|
| 165 |
/* flags */ |
| 166 |
/* FIXME: Should allow case-insensitive flag names. |
| 167 |
Fix by using lex+yacc... */ |
| 168 |
modifiers = 0; |
| 169 |
if (strstr(line_rest, "altgr")) |
| 170 |
{ |
| 171 |
MASK_ADD_BITS(modifiers, MapAltGrMask); |
| 172 |
} |
| 173 |
|
| 174 |
if (strstr(line_rest, "shift")) |
| 175 |
{ |
| 176 |
MASK_ADD_BITS(modifiers, MapLeftShiftMask); |
| 177 |
} |
| 178 |
|
| 179 |
if (strstr(line_rest, "numlock")) |
| 180 |
{ |
| 181 |
MASK_ADD_BITS(modifiers, MapNumLockMask); |
| 182 |
} |
| 183 |
|
| 184 |
if (strstr(line_rest, "localstate")) |
| 185 |
{ |
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MASK_ADD_BITS(modifiers, MapLocalStateMask); |
| 187 |
} |
| 188 |
|
| 189 |
if (strstr(line_rest, "inhibit")) |
| 190 |
{ |
| 191 |
MASK_ADD_BITS(modifiers, MapInhibitMask); |
| 192 |
} |
| 193 |
|
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add_to_keymap(keyname, scancode, modifiers, mapname); |
| 195 |
|
| 196 |
if (strstr(line_rest, "addupper")) |
| 197 |
{ |
| 198 |
/* Automatically add uppercase key, with same modifiers |
| 199 |
plus shift */ |
| 200 |
for (p = keyname; *p; p++) |
| 201 |
*p = toupper(*p); |
| 202 |
MASK_ADD_BITS(modifiers, MapLeftShiftMask); |
| 203 |
add_to_keymap(keyname, scancode, modifiers, mapname); |
| 204 |
} |
| 205 |
} |
| 206 |
|
| 207 |
fclose(fp); |
| 208 |
return True; |
| 209 |
} |
| 210 |
|
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|
| 212 |
/* Before connecting and creating UI */ |
| 213 |
void |
| 214 |
xkeymap_init(void) |
| 215 |
{ |
| 216 |
unsigned int max_keycode; |
| 217 |
char *mapname_ptr; |
| 218 |
|
| 219 |
/* Make keymapname lowercase */ |
| 220 |
mapname_ptr = keymapname; |
| 221 |
while (*mapname_ptr) |
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*mapname_ptr++ = tolower(*mapname_ptr); |
| 223 |
|
| 224 |
if (strcmp(keymapname, "none")) |
| 225 |
{ |
| 226 |
if (xkeymap_read(keymapname)) |
| 227 |
keymap_loaded = True; |
| 228 |
} |
| 229 |
|
| 230 |
XDisplayKeycodes(display, &min_keycode, (int *) &max_keycode); |
| 231 |
} |
| 232 |
|
| 233 |
/* Handles, for example, multi-scancode keypresses (which is not |
| 234 |
possible via keymap-files) */ |
| 235 |
BOOL |
| 236 |
handle_special_keys(uint32 keysym, unsigned int state, uint32 ev_time, BOOL pressed) |
| 237 |
{ |
| 238 |
switch (keysym) |
| 239 |
{ |
| 240 |
case XK_Break: |
| 241 |
case XK_Pause: |
| 242 |
if ((get_key_state(state, XK_Alt_L) || get_key_state(state, XK_Alt_R)) |
| 243 |
&& (get_key_state(state, XK_Control_L) || get_key_state(state, XK_Control_R))) |
| 244 |
{ |
| 245 |
/* Ctrl-Alt-Break: toggle full screen */ |
| 246 |
if (pressed) |
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xwin_toggle_fullscreen(); |
| 248 |
|
| 249 |
} |
| 250 |
else if (keysym == XK_Break) |
| 251 |
{ |
| 252 |
/* Send Break sequence E0 46 E0 C6 */ |
| 253 |
if (pressed) |
| 254 |
{ |
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rdp_send_scancode(ev_time, RDP_KEYPRESS, |
| 256 |
(SCANCODE_EXTENDED | 0x46)); |
| 257 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, |
| 258 |
(SCANCODE_EXTENDED | 0xc6)); |
| 259 |
} |
| 260 |
/* No break sequence */ |
| 261 |
} |
| 262 |
else /* XK_Pause */ |
| 263 |
{ |
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/* According to MS Keyboard Scan Code |
| 265 |
Specification, pressing Pause should result |
| 266 |
in E1 1D 45 E1 9D C5. I'm not exactly sure |
| 267 |
of how this is supposed to be sent via |
| 268 |
RDP. The code below seems to work, but with |
| 269 |
the side effect that Left Ctrl stays |
| 270 |
down. Therefore, we release it when Pause |
| 271 |
is released. */ |
| 272 |
if (pressed) |
| 273 |
{ |
| 274 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0); |
| 275 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x1d, 0); |
| 276 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x45, 0); |
| 277 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0); |
| 278 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x9d, 0); |
| 279 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xc5, 0); |
| 280 |
} |
| 281 |
else |
| 282 |
{ |
| 283 |
/* Release Left Ctrl */ |
| 284 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYRELEASE, 0x1d, |
| 285 |
0); |
| 286 |
} |
| 287 |
} |
| 288 |
return True; |
| 289 |
|
| 290 |
case XK_Meta_L: /* Windows keys */ |
| 291 |
case XK_Super_L: |
| 292 |
case XK_Hyper_L: |
| 293 |
case XK_Meta_R: |
| 294 |
case XK_Super_R: |
| 295 |
case XK_Hyper_R: |
| 296 |
if (pressed) |
| 297 |
{ |
| 298 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LCTRL); |
| 299 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_ESC); |
| 300 |
} |
| 301 |
else |
| 302 |
{ |
| 303 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_ESC); |
| 304 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL); |
| 305 |
} |
| 306 |
return True; |
| 307 |
} |
| 308 |
return False; |
| 309 |
} |
| 310 |
|
| 311 |
|
| 312 |
key_translation |
| 313 |
xkeymap_translate_key(uint32 keysym, unsigned int keycode, unsigned int state) |
| 314 |
{ |
| 315 |
key_translation tr = { 0, 0 }; |
| 316 |
|
| 317 |
tr = keymap[keysym & KEYMAP_MASK]; |
| 318 |
|
| 319 |
if (tr.modifiers & MapInhibitMask) |
| 320 |
{ |
| 321 |
DEBUG_KBD(("Inhibiting key\n")); |
| 322 |
tr.scancode = 0; |
| 323 |
return tr; |
| 324 |
} |
| 325 |
|
| 326 |
if (tr.modifiers & MapLocalStateMask) |
| 327 |
{ |
| 328 |
/* The modifiers to send for this key should be obtained |
| 329 |
from the local state. Currently, only shift is implemented. */ |
| 330 |
if (state & ShiftMask) |
| 331 |
{ |
| 332 |
tr.modifiers = MapLeftShiftMask; |
| 333 |
} |
| 334 |
} |
| 335 |
|
| 336 |
if (tr.scancode != 0) |
| 337 |
{ |
| 338 |
DEBUG_KBD(("Found key translation, scancode=0x%x, modifiers=0x%x\n", |
| 339 |
tr.scancode, tr.modifiers)); |
| 340 |
return tr; |
| 341 |
} |
| 342 |
|
| 343 |
if (keymap_loaded) |
| 344 |
error("No translation for (keysym 0x%lx, %s)\n", keysym, get_ksname(keysym)); |
| 345 |
|
| 346 |
/* not in keymap, try to interpret the raw scancode */ |
| 347 |
if ((keycode >= min_keycode) && (keycode <= 0x60)) |
| 348 |
{ |
| 349 |
tr.scancode = keycode - min_keycode; |
| 350 |
|
| 351 |
/* The modifiers to send for this key should be |
| 352 |
obtained from the local state. Currently, only |
| 353 |
shift is implemented. */ |
| 354 |
if (state & ShiftMask) |
| 355 |
{ |
| 356 |
tr.modifiers = MapLeftShiftMask; |
| 357 |
} |
| 358 |
|
| 359 |
DEBUG_KBD(("Sending guessed scancode 0x%x\n", tr.scancode)); |
| 360 |
} |
| 361 |
else |
| 362 |
{ |
| 363 |
DEBUG_KBD(("No good guess for keycode 0x%x found\n", keycode)); |
| 364 |
} |
| 365 |
|
| 366 |
return tr; |
| 367 |
} |
| 368 |
|
| 369 |
uint16 |
| 370 |
xkeymap_translate_button(unsigned int button) |
| 371 |
{ |
| 372 |
switch (button) |
| 373 |
{ |
| 374 |
case Button1: /* left */ |
| 375 |
return MOUSE_FLAG_BUTTON1; |
| 376 |
case Button2: /* middle */ |
| 377 |
return MOUSE_FLAG_BUTTON3; |
| 378 |
case Button3: /* right */ |
| 379 |
return MOUSE_FLAG_BUTTON2; |
| 380 |
case Button4: /* wheel up */ |
| 381 |
return MOUSE_FLAG_BUTTON4; |
| 382 |
case Button5: /* wheel down */ |
| 383 |
return MOUSE_FLAG_BUTTON5; |
| 384 |
} |
| 385 |
|
| 386 |
return 0; |
| 387 |
} |
| 388 |
|
| 389 |
char * |
| 390 |
get_ksname(uint32 keysym) |
| 391 |
{ |
| 392 |
char *ksname = NULL; |
| 393 |
|
| 394 |
if (keysym == NoSymbol) |
| 395 |
ksname = "NoSymbol"; |
| 396 |
else if (!(ksname = XKeysymToString(keysym))) |
| 397 |
ksname = "(no name)"; |
| 398 |
|
| 399 |
return ksname; |
| 400 |
} |
| 401 |
|
| 402 |
|
| 403 |
void |
| 404 |
ensure_remote_modifiers(uint32 ev_time, key_translation tr) |
| 405 |
{ |
| 406 |
/* If this key is a modifier, do nothing */ |
| 407 |
switch (tr.scancode) |
| 408 |
{ |
| 409 |
case SCANCODE_CHAR_LSHIFT: |
| 410 |
case SCANCODE_CHAR_RSHIFT: |
| 411 |
case SCANCODE_CHAR_LCTRL: |
| 412 |
case SCANCODE_CHAR_RCTRL: |
| 413 |
case SCANCODE_CHAR_LALT: |
| 414 |
case SCANCODE_CHAR_RALT: |
| 415 |
case SCANCODE_CHAR_LWIN: |
| 416 |
case SCANCODE_CHAR_RWIN: |
| 417 |
case SCANCODE_CHAR_NUMLOCK: |
| 418 |
return; |
| 419 |
default: |
| 420 |
break; |
| 421 |
} |
| 422 |
|
| 423 |
/* Shift. Left shift and right shift are treated as equal; either is fine. */ |
| 424 |
if (MASK_HAS_BITS(tr.modifiers, MapShiftMask) |
| 425 |
!= MASK_HAS_BITS(remote_modifier_state, MapShiftMask)) |
| 426 |
{ |
| 427 |
/* The remote modifier state is not correct */ |
| 428 |
if (MASK_HAS_BITS(tr.modifiers, MapLeftShiftMask)) |
| 429 |
{ |
| 430 |
/* Needs left shift. Send down. */ |
| 431 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LSHIFT); |
| 432 |
} |
| 433 |
else if (MASK_HAS_BITS(tr.modifiers, MapRightShiftMask)) |
| 434 |
{ |
| 435 |
/* Needs right shift. Send down. */ |
| 436 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RSHIFT); |
| 437 |
} |
| 438 |
else |
| 439 |
{ |
| 440 |
/* Should not use this modifier. Send up for shift currently pressed. */ |
| 441 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask)) |
| 442 |
/* Left shift is down */ |
| 443 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT); |
| 444 |
else |
| 445 |
/* Right shift is down */ |
| 446 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT); |
| 447 |
} |
| 448 |
} |
| 449 |
|
| 450 |
/* AltGr */ |
| 451 |
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask) |
| 452 |
!= MASK_HAS_BITS(remote_modifier_state, MapAltGrMask)) |
| 453 |
{ |
| 454 |
/* The remote modifier state is not correct */ |
| 455 |
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask)) |
| 456 |
{ |
| 457 |
/* Needs this modifier. Send down. */ |
| 458 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RALT); |
| 459 |
} |
| 460 |
else |
| 461 |
{ |
| 462 |
/* Should not use this modifier. Send up. */ |
| 463 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT); |
| 464 |
} |
| 465 |
} |
| 466 |
|
| 467 |
/* NumLock */ |
| 468 |
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask) |
| 469 |
!= MASK_HAS_BITS(remote_modifier_state, MapNumLockMask)) |
| 470 |
{ |
| 471 |
/* The remote modifier state is not correct */ |
| 472 |
uint16 new_remote_state = 0; |
| 473 |
|
| 474 |
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask)) |
| 475 |
{ |
| 476 |
DEBUG_KBD(("Remote NumLock state is incorrect, activating NumLock.\n")); |
| 477 |
new_remote_state |= KBD_FLAG_NUMLOCK; |
| 478 |
} |
| 479 |
else |
| 480 |
{ |
| 481 |
DEBUG_KBD(("Remote NumLock state is incorrect, deactivating NumLock.\n")); |
| 482 |
} |
| 483 |
|
| 484 |
rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, new_remote_state, 0); |
| 485 |
update_modifier_state(SCANCODE_CHAR_NUMLOCK, True); |
| 486 |
} |
| 487 |
} |
| 488 |
|
| 489 |
|
| 490 |
void |
| 491 |
reset_modifier_keys(unsigned int state) |
| 492 |
{ |
| 493 |
/* reset keys */ |
| 494 |
uint32 ev_time; |
| 495 |
ev_time = time(NULL); |
| 496 |
|
| 497 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask) && !get_key_state(state, XK_Shift_L)) |
| 498 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT); |
| 499 |
|
| 500 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightShiftMask) && !get_key_state(state, XK_Shift_R)) |
| 501 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT); |
| 502 |
|
| 503 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftCtrlMask) && !get_key_state(state, XK_Control_L)) |
| 504 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL); |
| 505 |
|
| 506 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightCtrlMask) && !get_key_state(state, XK_Control_R)) |
| 507 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RCTRL); |
| 508 |
|
| 509 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftAltMask) && !get_key_state(state, XK_Alt_L)) |
| 510 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LALT); |
| 511 |
|
| 512 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) && |
| 513 |
!get_key_state(state, XK_Alt_R) && !get_key_state(state, XK_Mode_switch)) |
| 514 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT); |
| 515 |
} |
| 516 |
|
| 517 |
|
| 518 |
static void |
| 519 |
update_modifier_state(uint8 scancode, BOOL pressed) |
| 520 |
{ |
| 521 |
#ifdef WITH_DEBUG_KBD |
| 522 |
uint16 old_modifier_state; |
| 523 |
|
| 524 |
old_modifier_state = remote_modifier_state; |
| 525 |
#endif |
| 526 |
|
| 527 |
switch (scancode) |
| 528 |
{ |
| 529 |
case SCANCODE_CHAR_LSHIFT: |
| 530 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftShiftMask, pressed); |
| 531 |
break; |
| 532 |
case SCANCODE_CHAR_RSHIFT: |
| 533 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightShiftMask, pressed); |
| 534 |
break; |
| 535 |
case SCANCODE_CHAR_LCTRL: |
| 536 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftCtrlMask, pressed); |
| 537 |
break; |
| 538 |
case SCANCODE_CHAR_RCTRL: |
| 539 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightCtrlMask, pressed); |
| 540 |
break; |
| 541 |
case SCANCODE_CHAR_LALT: |
| 542 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftAltMask, pressed); |
| 543 |
break; |
| 544 |
case SCANCODE_CHAR_RALT: |
| 545 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightAltMask, pressed); |
| 546 |
break; |
| 547 |
case SCANCODE_CHAR_LWIN: |
| 548 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftWinMask, pressed); |
| 549 |
break; |
| 550 |
case SCANCODE_CHAR_RWIN: |
| 551 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightWinMask, pressed); |
| 552 |
break; |
| 553 |
case SCANCODE_CHAR_NUMLOCK: |
| 554 |
/* KeyReleases for NumLocks are sent immediately. Toggle the |
| 555 |
modifier state only on Keypress */ |
| 556 |
if (pressed) |
| 557 |
{ |
| 558 |
BOOL newNumLockState; |
| 559 |
newNumLockState = |
| 560 |
(MASK_HAS_BITS |
| 561 |
(remote_modifier_state, MapNumLockMask) == False); |
| 562 |
MASK_CHANGE_BIT(remote_modifier_state, |
| 563 |
MapNumLockMask, newNumLockState); |
| 564 |
} |
| 565 |
break; |
| 566 |
} |
| 567 |
|
| 568 |
#ifdef WITH_DEBUG_KBD |
| 569 |
if (old_modifier_state != remote_modifier_state) |
| 570 |
{ |
| 571 |
DEBUG_KBD(("Before updating modifier_state:0x%x, pressed=0x%x\n", |
| 572 |
old_modifier_state, pressed)); |
| 573 |
DEBUG_KBD(("After updating modifier_state:0x%x\n", remote_modifier_state)); |
| 574 |
} |
| 575 |
#endif |
| 576 |
|
| 577 |
} |
| 578 |
|
| 579 |
/* Send keyboard input */ |
| 580 |
void |
| 581 |
rdp_send_scancode(uint32 time, uint16 flags, uint8 scancode) |
| 582 |
{ |
| 583 |
update_modifier_state(scancode, !(flags & RDP_KEYRELEASE)); |
| 584 |
|
| 585 |
if (scancode & SCANCODE_EXTENDED) |
| 586 |
{ |
| 587 |
DEBUG_KBD(("Sending extended scancode=0x%x, flags=0x%x\n", |
| 588 |
scancode & ~SCANCODE_EXTENDED, flags)); |
| 589 |
rdp_send_input(time, RDP_INPUT_SCANCODE, flags | KBD_FLAG_EXT, |
| 590 |
scancode & ~SCANCODE_EXTENDED, 0); |
| 591 |
} |
| 592 |
else |
| 593 |
{ |
| 594 |
DEBUG_KBD(("Sending scancode=0x%x, flags=0x%x\n", scancode, flags)); |
| 595 |
rdp_send_input(time, RDP_INPUT_SCANCODE, flags, scancode, 0); |
| 596 |
} |
| 597 |
} |
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