1 |
/* -*- c-basic-offset: 8 -*- |
2 |
rdesktop: A Remote Desktop Protocol client. |
3 |
User interface services - X keyboard mapping |
4 |
|
5 |
Copyright (C) Matthew Chapman 1999-2005 |
6 |
Copyright (C) Peter Astrand <peter@cendio.se> 2003 |
7 |
|
8 |
This program is free software; you can redistribute it and/or modify |
9 |
it under the terms of the GNU General Public License as published by |
10 |
the Free Software Foundation; either version 2 of the License, or |
11 |
(at your option) any later version. |
12 |
|
13 |
This program is distributed in the hope that it will be useful, |
14 |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 |
GNU General Public License for more details. |
17 |
|
18 |
You should have received a copy of the GNU General Public License |
19 |
along with this program; if not, write to the Free Software |
20 |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
21 |
*/ |
22 |
|
23 |
#ifdef RDP2VNC |
24 |
#include "vnc/x11stubs.h" |
25 |
#else |
26 |
#include <X11/Xlib.h> |
27 |
#include <X11/keysym.h> |
28 |
#endif |
29 |
|
30 |
#include <ctype.h> |
31 |
#include <limits.h> |
32 |
#include <time.h> |
33 |
#include <string.h> |
34 |
#include "rdesktop.h" |
35 |
#include "scancodes.h" |
36 |
|
37 |
#define KEYMAP_SIZE 0xffff+1 |
38 |
#define KEYMAP_MASK 0xffff |
39 |
#define KEYMAP_MAX_LINE_LENGTH 80 |
40 |
|
41 |
extern Display *g_display; |
42 |
extern Window g_wnd; |
43 |
extern char keymapname[16]; |
44 |
extern int g_keylayout; |
45 |
extern int g_keyboard_type; |
46 |
extern int g_keyboard_subtype; |
47 |
extern int g_keyboard_functionkeys; |
48 |
extern int g_win_button_size; |
49 |
extern BOOL g_enable_compose; |
50 |
extern BOOL g_use_rdp5; |
51 |
extern BOOL g_numlock_sync; |
52 |
|
53 |
static BOOL keymap_loaded; |
54 |
static key_translation *keymap[KEYMAP_SIZE]; |
55 |
static int min_keycode; |
56 |
static uint16 remote_modifier_state = 0; |
57 |
static uint16 saved_remote_modifier_state = 0; |
58 |
|
59 |
static void update_modifier_state(uint8 scancode, BOOL pressed); |
60 |
|
61 |
/* Free key_translation structure, including linked list */ |
62 |
static void |
63 |
free_key_translation(key_translation * ptr) |
64 |
{ |
65 |
key_translation *next; |
66 |
|
67 |
while (ptr) |
68 |
{ |
69 |
next = ptr->next; |
70 |
xfree(ptr); |
71 |
ptr = next; |
72 |
} |
73 |
} |
74 |
|
75 |
static void |
76 |
add_to_keymap(char *keyname, uint8 scancode, uint16 modifiers, char *mapname) |
77 |
{ |
78 |
KeySym keysym; |
79 |
key_translation *tr; |
80 |
|
81 |
keysym = XStringToKeysym(keyname); |
82 |
if (keysym == NoSymbol) |
83 |
{ |
84 |
DEBUG_KBD(("Bad keysym \"%s\" in keymap %s (ignoring)\n", keyname, mapname)); |
85 |
return; |
86 |
} |
87 |
|
88 |
DEBUG_KBD(("Adding translation, keysym=0x%x, scancode=0x%x, " |
89 |
"modifiers=0x%x\n", (unsigned int) keysym, scancode, modifiers)); |
90 |
|
91 |
tr = (key_translation *) xmalloc(sizeof(key_translation)); |
92 |
memset(tr, 0, sizeof(key_translation)); |
93 |
tr->scancode = scancode; |
94 |
tr->modifiers = modifiers; |
95 |
free_key_translation(keymap[keysym & KEYMAP_MASK]); |
96 |
keymap[keysym & KEYMAP_MASK] = tr; |
97 |
|
98 |
return; |
99 |
} |
100 |
|
101 |
static void |
102 |
add_sequence(char *rest, char *mapname) |
103 |
{ |
104 |
KeySym keysym; |
105 |
key_translation *tr, **prev_next; |
106 |
size_t chars; |
107 |
char keyname[KEYMAP_MAX_LINE_LENGTH]; |
108 |
|
109 |
/* Skip over whitespace after the sequence keyword */ |
110 |
chars = strspn(rest, " \t"); |
111 |
rest += chars; |
112 |
|
113 |
/* Fetch the keysym name */ |
114 |
chars = strcspn(rest, " \t\0"); |
115 |
STRNCPY(keyname, rest, chars + 1); |
116 |
rest += chars; |
117 |
|
118 |
keysym = XStringToKeysym(keyname); |
119 |
if (keysym == NoSymbol) |
120 |
{ |
121 |
DEBUG_KBD(("Bad keysym \"%s\" in keymap %s (ignoring line)\n", keyname, mapname)); |
122 |
return; |
123 |
} |
124 |
|
125 |
|
126 |
DEBUG_KBD(("Adding sequence for keysym (0x%lx, %s) -> ", keysym, keyname)); |
127 |
|
128 |
free_key_translation(keymap[keysym & KEYMAP_MASK]); |
129 |
prev_next = &keymap[keysym & KEYMAP_MASK]; |
130 |
|
131 |
while (*rest) |
132 |
{ |
133 |
/* Skip whitespace */ |
134 |
chars = strspn(rest, " \t"); |
135 |
rest += chars; |
136 |
|
137 |
/* Fetch the keysym name */ |
138 |
chars = strcspn(rest, " \t\0"); |
139 |
STRNCPY(keyname, rest, chars + 1); |
140 |
rest += chars; |
141 |
|
142 |
keysym = XStringToKeysym(keyname); |
143 |
if (keysym == NoSymbol) |
144 |
{ |
145 |
DEBUG_KBD(("Bad keysym \"%s\" in keymap %s (ignoring line)\n", keyname, |
146 |
mapname)); |
147 |
return; |
148 |
} |
149 |
|
150 |
/* Allocate space for key_translation structure */ |
151 |
tr = (key_translation *) xmalloc(sizeof(key_translation)); |
152 |
memset(tr, 0, sizeof(key_translation)); |
153 |
*prev_next = tr; |
154 |
prev_next = &tr->next; |
155 |
tr->seq_keysym = keysym; |
156 |
|
157 |
DEBUG_KBD(("0x%x, ", (unsigned int) keysym)); |
158 |
} |
159 |
DEBUG_KBD(("\n")); |
160 |
} |
161 |
|
162 |
void |
163 |
xkeymap_from_locale(const char *locale) |
164 |
{ |
165 |
char *str, *ptr; |
166 |
FILE *fp; |
167 |
|
168 |
/* Create a working copy */ |
169 |
str = strdup(locale); |
170 |
if (str == NULL) |
171 |
{ |
172 |
perror("strdup"); |
173 |
exit(1); |
174 |
} |
175 |
|
176 |
/* Truncate at dot and at */ |
177 |
ptr = strrchr(str, '.'); |
178 |
if (ptr) |
179 |
*ptr = '\0'; |
180 |
ptr = strrchr(str, '@'); |
181 |
if (ptr) |
182 |
*ptr = '\0'; |
183 |
|
184 |
/* Replace _ with - */ |
185 |
ptr = strrchr(str, '_'); |
186 |
if (ptr) |
187 |
*ptr = '-'; |
188 |
|
189 |
/* Convert to lowercase */ |
190 |
ptr = str; |
191 |
while (*ptr) |
192 |
{ |
193 |
*ptr = tolower((int) *ptr); |
194 |
ptr++; |
195 |
} |
196 |
|
197 |
/* Try to open this keymap (da-dk) */ |
198 |
fp = xkeymap_open(str); |
199 |
if (fp == NULL) |
200 |
{ |
201 |
/* Truncate at dash */ |
202 |
ptr = strrchr(str, '-'); |
203 |
if (ptr) |
204 |
*ptr = '\0'; |
205 |
|
206 |
/* Try the short name (da) */ |
207 |
fp = xkeymap_open(str); |
208 |
} |
209 |
|
210 |
if (fp) |
211 |
{ |
212 |
fclose(fp); |
213 |
STRNCPY(keymapname, str, sizeof(keymapname)); |
214 |
fprintf(stderr, "Autoselected keyboard map %s.\n", keymapname); |
215 |
} |
216 |
} |
217 |
|
218 |
|
219 |
/* Joins two path components. The result should be freed with |
220 |
xfree(). */ |
221 |
static char * |
222 |
pathjoin(const char *a, const char *b) |
223 |
{ |
224 |
char *result; |
225 |
result = xmalloc(PATH_MAX * 2 + 1); |
226 |
|
227 |
if (b[0] == '/') |
228 |
{ |
229 |
strncpy(result, b, PATH_MAX); |
230 |
} |
231 |
else |
232 |
{ |
233 |
strncpy(result, a, PATH_MAX); |
234 |
strcat(result, "/"); |
235 |
strncat(result, b, PATH_MAX); |
236 |
} |
237 |
return result; |
238 |
} |
239 |
|
240 |
/* Try to open a keymap with fopen() */ |
241 |
FILE * |
242 |
xkeymap_open(const char *filename) |
243 |
{ |
244 |
char *path1, *path2; |
245 |
char *home; |
246 |
FILE *fp; |
247 |
|
248 |
/* Try ~/.rdesktop/keymaps */ |
249 |
home = getenv("HOME"); |
250 |
if (home) |
251 |
{ |
252 |
path1 = pathjoin(home, ".rdesktop/keymaps"); |
253 |
path2 = pathjoin(path1, filename); |
254 |
xfree(path1); |
255 |
fp = fopen(path2, "r"); |
256 |
xfree(path2); |
257 |
if (fp) |
258 |
return fp; |
259 |
} |
260 |
|
261 |
/* Try KEYMAP_PATH */ |
262 |
path1 = pathjoin(KEYMAP_PATH, filename); |
263 |
fp = fopen(path1, "r"); |
264 |
xfree(path1); |
265 |
if (fp) |
266 |
return fp; |
267 |
|
268 |
/* Try current directory, in case we are running from the source |
269 |
tree */ |
270 |
path1 = pathjoin("keymaps", filename); |
271 |
fp = fopen(path1, "r"); |
272 |
xfree(path1); |
273 |
if (fp) |
274 |
return fp; |
275 |
|
276 |
return NULL; |
277 |
} |
278 |
|
279 |
static BOOL |
280 |
xkeymap_read(char *mapname) |
281 |
{ |
282 |
FILE *fp; |
283 |
char line[KEYMAP_MAX_LINE_LENGTH]; |
284 |
unsigned int line_num = 0; |
285 |
unsigned int line_length = 0; |
286 |
char *keyname, *p; |
287 |
char *line_rest; |
288 |
uint8 scancode; |
289 |
uint16 modifiers; |
290 |
|
291 |
fp = xkeymap_open(mapname); |
292 |
if (fp == NULL) |
293 |
{ |
294 |
error("Failed to open keymap %s\n", mapname); |
295 |
return False; |
296 |
} |
297 |
|
298 |
/* FIXME: More tolerant on white space */ |
299 |
while (fgets(line, sizeof(line), fp) != NULL) |
300 |
{ |
301 |
line_num++; |
302 |
|
303 |
/* Replace the \n with \0 */ |
304 |
p = strchr(line, '\n'); |
305 |
if (p != NULL) |
306 |
*p = 0; |
307 |
|
308 |
line_length = strlen(line); |
309 |
|
310 |
/* Completely empty line */ |
311 |
if (strspn(line, " \t\n\r\f\v") == line_length) |
312 |
{ |
313 |
continue; |
314 |
} |
315 |
|
316 |
/* Include */ |
317 |
if (strncmp(line, "include ", 8) == 0) |
318 |
{ |
319 |
if (!xkeymap_read(line + 8)) |
320 |
return False; |
321 |
continue; |
322 |
} |
323 |
|
324 |
/* map */ |
325 |
if (strncmp(line, "map ", 4) == 0) |
326 |
{ |
327 |
g_keylayout = strtol(line + 4, NULL, 16); |
328 |
DEBUG_KBD(("Keylayout 0x%x\n", g_keylayout)); |
329 |
continue; |
330 |
} |
331 |
|
332 |
/* compose */ |
333 |
if (strncmp(line, "enable_compose", 15) == 0) |
334 |
{ |
335 |
DEBUG_KBD(("Enabling compose handling\n")); |
336 |
g_enable_compose = True; |
337 |
continue; |
338 |
} |
339 |
|
340 |
/* sequence */ |
341 |
if (strncmp(line, "sequence", 8) == 0) |
342 |
{ |
343 |
add_sequence(line + 8, mapname); |
344 |
continue; |
345 |
} |
346 |
|
347 |
/* keyboard_type */ |
348 |
if (strncmp(line, "keyboard_type ", sizeof("keyboard_type ")) == 0) |
349 |
{ |
350 |
g_keyboard_type = strtol(line + sizeof("keyboard_type "), NULL, 16); |
351 |
DEBUG_KBD(("keyboard_type 0x%x\n", g_keyboard_type)); |
352 |
continue; |
353 |
} |
354 |
|
355 |
/* keyboard_subtype */ |
356 |
if (strncmp(line, "keyboard_subtype ", sizeof("keyboard_subtype ")) == 0) |
357 |
{ |
358 |
g_keyboard_subtype = strtol(line + sizeof("keyboard_subtype "), NULL, 16); |
359 |
DEBUG_KBD(("keyboard_subtype 0x%x\n", g_keyboard_subtype)); |
360 |
continue; |
361 |
} |
362 |
|
363 |
/* keyboard_functionkeys */ |
364 |
if (strncmp(line, "keyboard_functionkeys ", sizeof("keyboard_functionkeys ")) == 0) |
365 |
{ |
366 |
g_keyboard_functionkeys = |
367 |
strtol(line + sizeof("keyboard_functionkeys "), NULL, 16); |
368 |
DEBUG_KBD(("keyboard_functionkeys 0x%x\n", g_keyboard_functionkeys)); |
369 |
continue; |
370 |
} |
371 |
|
372 |
/* Comment */ |
373 |
if (line[0] == '#') |
374 |
{ |
375 |
continue; |
376 |
} |
377 |
|
378 |
/* Normal line */ |
379 |
keyname = line; |
380 |
p = strchr(line, ' '); |
381 |
if (p == NULL) |
382 |
{ |
383 |
error("Bad line %d in keymap %s\n", line_num, mapname); |
384 |
continue; |
385 |
} |
386 |
else |
387 |
{ |
388 |
*p = 0; |
389 |
} |
390 |
|
391 |
/* scancode */ |
392 |
p++; |
393 |
scancode = strtol(p, &line_rest, 16); |
394 |
|
395 |
/* flags */ |
396 |
/* FIXME: Should allow case-insensitive flag names. |
397 |
Fix by using lex+yacc... */ |
398 |
modifiers = 0; |
399 |
if (strstr(line_rest, "altgr")) |
400 |
{ |
401 |
MASK_ADD_BITS(modifiers, MapAltGrMask); |
402 |
} |
403 |
|
404 |
if (strstr(line_rest, "shift")) |
405 |
{ |
406 |
MASK_ADD_BITS(modifiers, MapLeftShiftMask); |
407 |
} |
408 |
|
409 |
if (strstr(line_rest, "numlock")) |
410 |
{ |
411 |
MASK_ADD_BITS(modifiers, MapNumLockMask); |
412 |
} |
413 |
|
414 |
if (strstr(line_rest, "localstate")) |
415 |
{ |
416 |
MASK_ADD_BITS(modifiers, MapLocalStateMask); |
417 |
} |
418 |
|
419 |
if (strstr(line_rest, "inhibit")) |
420 |
{ |
421 |
MASK_ADD_BITS(modifiers, MapInhibitMask); |
422 |
} |
423 |
|
424 |
add_to_keymap(keyname, scancode, modifiers, mapname); |
425 |
|
426 |
if (strstr(line_rest, "addupper")) |
427 |
{ |
428 |
/* Automatically add uppercase key, with same modifiers |
429 |
plus shift */ |
430 |
for (p = keyname; *p; p++) |
431 |
*p = toupper((int) *p); |
432 |
MASK_ADD_BITS(modifiers, MapLeftShiftMask); |
433 |
add_to_keymap(keyname, scancode, modifiers, mapname); |
434 |
} |
435 |
} |
436 |
|
437 |
fclose(fp); |
438 |
return True; |
439 |
} |
440 |
|
441 |
|
442 |
/* Before connecting and creating UI */ |
443 |
void |
444 |
xkeymap_init(void) |
445 |
{ |
446 |
unsigned int max_keycode; |
447 |
|
448 |
if (strcmp(keymapname, "none")) |
449 |
{ |
450 |
if (xkeymap_read(keymapname)) |
451 |
keymap_loaded = True; |
452 |
} |
453 |
|
454 |
XDisplayKeycodes(g_display, &min_keycode, (int *) &max_keycode); |
455 |
} |
456 |
|
457 |
static void |
458 |
send_winkey(uint32 ev_time, BOOL pressed, BOOL leftkey) |
459 |
{ |
460 |
uint8 winkey; |
461 |
|
462 |
if (leftkey) |
463 |
winkey = SCANCODE_CHAR_LWIN; |
464 |
else |
465 |
winkey = SCANCODE_CHAR_RWIN; |
466 |
|
467 |
if (pressed) |
468 |
{ |
469 |
if (g_use_rdp5) |
470 |
{ |
471 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, winkey); |
472 |
} |
473 |
else |
474 |
{ |
475 |
/* RDP4 doesn't support winkey. Fake with Ctrl-Esc */ |
476 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LCTRL); |
477 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_ESC); |
478 |
} |
479 |
} |
480 |
else |
481 |
{ |
482 |
/* key released */ |
483 |
if (g_use_rdp5) |
484 |
{ |
485 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, winkey); |
486 |
} |
487 |
else |
488 |
{ |
489 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_ESC); |
490 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL); |
491 |
} |
492 |
} |
493 |
} |
494 |
|
495 |
static void |
496 |
reset_winkey(uint32 ev_time) |
497 |
{ |
498 |
if (g_use_rdp5) |
499 |
{ |
500 |
/* For some reason, it seems to suffice to release |
501 |
*either* the left or right winkey. */ |
502 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LWIN); |
503 |
} |
504 |
} |
505 |
|
506 |
/* Handle special key combinations */ |
507 |
BOOL |
508 |
handle_special_keys(uint32 keysym, unsigned int state, uint32 ev_time, BOOL pressed) |
509 |
{ |
510 |
switch (keysym) |
511 |
{ |
512 |
case XK_Return: |
513 |
if ((get_key_state(state, XK_Alt_L) || get_key_state(state, XK_Alt_R)) |
514 |
&& (get_key_state(state, XK_Control_L) |
515 |
|| get_key_state(state, XK_Control_R))) |
516 |
{ |
517 |
/* Ctrl-Alt-Enter: toggle full screen */ |
518 |
if (pressed) |
519 |
xwin_toggle_fullscreen(); |
520 |
return True; |
521 |
} |
522 |
break; |
523 |
|
524 |
case XK_Break: |
525 |
/* Send Break sequence E0 46 E0 C6 */ |
526 |
if (pressed) |
527 |
{ |
528 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, |
529 |
(SCANCODE_EXTENDED | 0x46)); |
530 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, |
531 |
(SCANCODE_EXTENDED | 0xc6)); |
532 |
} |
533 |
/* No release sequence */ |
534 |
return True; |
535 |
break; |
536 |
|
537 |
case XK_Pause: |
538 |
/* According to MS Keyboard Scan Code |
539 |
Specification, pressing Pause should result |
540 |
in E1 1D 45 E1 9D C5. I'm not exactly sure |
541 |
of how this is supposed to be sent via |
542 |
RDP. The code below seems to work, but with |
543 |
the side effect that Left Ctrl stays |
544 |
down. Therefore, we release it when Pause |
545 |
is released. */ |
546 |
if (pressed) |
547 |
{ |
548 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0); |
549 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x1d, 0); |
550 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x45, 0); |
551 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0); |
552 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x9d, 0); |
553 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xc5, 0); |
554 |
} |
555 |
else |
556 |
{ |
557 |
/* Release Left Ctrl */ |
558 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYRELEASE, |
559 |
0x1d, 0); |
560 |
} |
561 |
return True; |
562 |
break; |
563 |
|
564 |
case XK_Meta_L: /* Windows keys */ |
565 |
case XK_Super_L: |
566 |
case XK_Hyper_L: |
567 |
send_winkey(ev_time, pressed, True); |
568 |
return True; |
569 |
break; |
570 |
|
571 |
case XK_Meta_R: |
572 |
case XK_Super_R: |
573 |
case XK_Hyper_R: |
574 |
send_winkey(ev_time, pressed, False); |
575 |
return True; |
576 |
break; |
577 |
|
578 |
case XK_space: |
579 |
/* Prevent access to the Windows system menu in single app mode */ |
580 |
if (g_win_button_size |
581 |
&& (get_key_state(state, XK_Alt_L) || get_key_state(state, XK_Alt_R))) |
582 |
return True; |
583 |
break; |
584 |
|
585 |
case XK_Num_Lock: |
586 |
/* Synchronize on key release */ |
587 |
if (g_numlock_sync && !pressed) |
588 |
rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, |
589 |
ui_get_numlock_state(read_keyboard_state()), 0); |
590 |
|
591 |
/* Inhibit */ |
592 |
return True; |
593 |
break; |
594 |
|
595 |
} |
596 |
return False; |
597 |
} |
598 |
|
599 |
|
600 |
key_translation |
601 |
xkeymap_translate_key(uint32 keysym, unsigned int keycode, unsigned int state) |
602 |
{ |
603 |
key_translation tr = { 0, 0, 0, 0 }; |
604 |
key_translation *ptr; |
605 |
|
606 |
ptr = keymap[keysym & KEYMAP_MASK]; |
607 |
if (ptr) |
608 |
{ |
609 |
tr = *ptr; |
610 |
if (tr.seq_keysym == 0) /* Normal scancode translation */ |
611 |
{ |
612 |
if (tr.modifiers & MapInhibitMask) |
613 |
{ |
614 |
DEBUG_KBD(("Inhibiting key\n")); |
615 |
tr.scancode = 0; |
616 |
return tr; |
617 |
} |
618 |
|
619 |
if (tr.modifiers & MapLocalStateMask) |
620 |
{ |
621 |
/* The modifiers to send for this key should be obtained |
622 |
from the local state. Currently, only shift is implemented. */ |
623 |
if (state & ShiftMask) |
624 |
{ |
625 |
tr.modifiers = MapLeftShiftMask; |
626 |
} |
627 |
} |
628 |
|
629 |
if ((tr.modifiers & MapLeftShiftMask) |
630 |
&& ((remote_modifier_state & MapLeftCtrlMask) |
631 |
|| (remote_modifier_state & MapRightCtrlMask)) |
632 |
&& get_key_state(state, XK_Caps_Lock)) |
633 |
{ |
634 |
DEBUG_KBD(("CapsLock + Ctrl pressed, releasing LeftShift\n")); |
635 |
tr.modifiers ^= MapLeftShiftMask; |
636 |
} |
637 |
|
638 |
DEBUG_KBD(("Found scancode translation, scancode=0x%x, modifiers=0x%x\n", |
639 |
tr.scancode, tr.modifiers)); |
640 |
} |
641 |
} |
642 |
else |
643 |
{ |
644 |
if (keymap_loaded) |
645 |
warning("No translation for (keysym 0x%lx, %s)\n", keysym, |
646 |
get_ksname(keysym)); |
647 |
|
648 |
/* not in keymap, try to interpret the raw scancode */ |
649 |
if (((int) keycode >= min_keycode) && (keycode <= 0x60)) |
650 |
{ |
651 |
tr.scancode = keycode - min_keycode; |
652 |
|
653 |
/* The modifiers to send for this key should be |
654 |
obtained from the local state. Currently, only |
655 |
shift is implemented. */ |
656 |
if (state & ShiftMask) |
657 |
{ |
658 |
tr.modifiers = MapLeftShiftMask; |
659 |
} |
660 |
|
661 |
DEBUG_KBD(("Sending guessed scancode 0x%x\n", tr.scancode)); |
662 |
} |
663 |
else |
664 |
{ |
665 |
DEBUG_KBD(("No good guess for keycode 0x%x found\n", keycode)); |
666 |
} |
667 |
} |
668 |
|
669 |
return tr; |
670 |
} |
671 |
|
672 |
void |
673 |
xkeymap_send_keys(uint32 keysym, unsigned int keycode, unsigned int state, uint32 ev_time, |
674 |
BOOL pressed) |
675 |
{ |
676 |
key_translation tr, *ptr; |
677 |
tr = xkeymap_translate_key(keysym, keycode, state); |
678 |
|
679 |
if (tr.seq_keysym == 0) |
680 |
{ |
681 |
/* Scancode translation */ |
682 |
if (tr.scancode == 0) |
683 |
return; |
684 |
|
685 |
if (pressed) |
686 |
{ |
687 |
save_remote_modifiers(tr.scancode); |
688 |
ensure_remote_modifiers(ev_time, tr); |
689 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, tr.scancode); |
690 |
restore_remote_modifiers(ev_time, tr.scancode); |
691 |
} |
692 |
else |
693 |
{ |
694 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, tr.scancode); |
695 |
} |
696 |
return; |
697 |
} |
698 |
|
699 |
/* Sequence, only on key down */ |
700 |
if (pressed) |
701 |
{ |
702 |
ptr = &tr; |
703 |
do |
704 |
{ |
705 |
DEBUG_KBD(("Handling sequence element, keysym=0x%x\n", |
706 |
(unsigned int) ptr->seq_keysym)); |
707 |
xkeymap_send_keys(ptr->seq_keysym, keycode, state, ev_time, True); |
708 |
xkeymap_send_keys(ptr->seq_keysym, keycode, state, ev_time, False); |
709 |
ptr = ptr->next; |
710 |
} |
711 |
while (ptr); |
712 |
} |
713 |
} |
714 |
|
715 |
uint16 |
716 |
xkeymap_translate_button(unsigned int button) |
717 |
{ |
718 |
switch (button) |
719 |
{ |
720 |
case Button1: /* left */ |
721 |
return MOUSE_FLAG_BUTTON1; |
722 |
case Button2: /* middle */ |
723 |
return MOUSE_FLAG_BUTTON3; |
724 |
case Button3: /* right */ |
725 |
return MOUSE_FLAG_BUTTON2; |
726 |
case Button4: /* wheel up */ |
727 |
return MOUSE_FLAG_BUTTON4; |
728 |
case Button5: /* wheel down */ |
729 |
return MOUSE_FLAG_BUTTON5; |
730 |
} |
731 |
|
732 |
return 0; |
733 |
} |
734 |
|
735 |
char * |
736 |
get_ksname(uint32 keysym) |
737 |
{ |
738 |
char *ksname = NULL; |
739 |
|
740 |
if (keysym == NoSymbol) |
741 |
ksname = "NoSymbol"; |
742 |
else if (!(ksname = XKeysymToString(keysym))) |
743 |
ksname = "(no name)"; |
744 |
|
745 |
return ksname; |
746 |
} |
747 |
|
748 |
static BOOL |
749 |
is_modifier(uint8 scancode) |
750 |
{ |
751 |
switch (scancode) |
752 |
{ |
753 |
case SCANCODE_CHAR_LSHIFT: |
754 |
case SCANCODE_CHAR_RSHIFT: |
755 |
case SCANCODE_CHAR_LCTRL: |
756 |
case SCANCODE_CHAR_RCTRL: |
757 |
case SCANCODE_CHAR_LALT: |
758 |
case SCANCODE_CHAR_RALT: |
759 |
case SCANCODE_CHAR_LWIN: |
760 |
case SCANCODE_CHAR_RWIN: |
761 |
case SCANCODE_CHAR_NUMLOCK: |
762 |
return True; |
763 |
default: |
764 |
break; |
765 |
} |
766 |
return False; |
767 |
} |
768 |
|
769 |
void |
770 |
save_remote_modifiers(uint8 scancode) |
771 |
{ |
772 |
if (is_modifier(scancode)) |
773 |
return; |
774 |
|
775 |
saved_remote_modifier_state = remote_modifier_state; |
776 |
} |
777 |
|
778 |
void |
779 |
restore_remote_modifiers(uint32 ev_time, uint8 scancode) |
780 |
{ |
781 |
key_translation dummy; |
782 |
|
783 |
if (is_modifier(scancode)) |
784 |
return; |
785 |
|
786 |
dummy.scancode = 0; |
787 |
dummy.modifiers = saved_remote_modifier_state; |
788 |
ensure_remote_modifiers(ev_time, dummy); |
789 |
} |
790 |
|
791 |
void |
792 |
ensure_remote_modifiers(uint32 ev_time, key_translation tr) |
793 |
{ |
794 |
/* If this key is a modifier, do nothing */ |
795 |
if (is_modifier(tr.scancode)) |
796 |
return; |
797 |
|
798 |
if (!g_numlock_sync) |
799 |
{ |
800 |
/* NumLock */ |
801 |
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask) |
802 |
!= MASK_HAS_BITS(remote_modifier_state, MapNumLockMask)) |
803 |
{ |
804 |
/* The remote modifier state is not correct */ |
805 |
uint16 new_remote_state; |
806 |
|
807 |
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask)) |
808 |
{ |
809 |
DEBUG_KBD(("Remote NumLock state is incorrect, activating NumLock.\n")); |
810 |
new_remote_state = KBD_FLAG_NUMLOCK; |
811 |
remote_modifier_state = MapNumLockMask; |
812 |
} |
813 |
else |
814 |
{ |
815 |
DEBUG_KBD(("Remote NumLock state is incorrect, deactivating NumLock.\n")); |
816 |
new_remote_state = 0; |
817 |
remote_modifier_state = 0; |
818 |
} |
819 |
|
820 |
rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, new_remote_state, 0); |
821 |
} |
822 |
} |
823 |
|
824 |
|
825 |
/* Shift. Left shift and right shift are treated as equal; either is fine. */ |
826 |
if (MASK_HAS_BITS(tr.modifiers, MapShiftMask) |
827 |
!= MASK_HAS_BITS(remote_modifier_state, MapShiftMask)) |
828 |
{ |
829 |
/* The remote modifier state is not correct */ |
830 |
if (MASK_HAS_BITS(tr.modifiers, MapLeftShiftMask)) |
831 |
{ |
832 |
/* Needs left shift. Send down. */ |
833 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LSHIFT); |
834 |
} |
835 |
else if (MASK_HAS_BITS(tr.modifiers, MapRightShiftMask)) |
836 |
{ |
837 |
/* Needs right shift. Send down. */ |
838 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RSHIFT); |
839 |
} |
840 |
else |
841 |
{ |
842 |
/* Should not use this modifier. Send up for shift currently pressed. */ |
843 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask)) |
844 |
/* Left shift is down */ |
845 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT); |
846 |
else |
847 |
/* Right shift is down */ |
848 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT); |
849 |
} |
850 |
} |
851 |
|
852 |
/* AltGr */ |
853 |
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask) |
854 |
!= MASK_HAS_BITS(remote_modifier_state, MapAltGrMask)) |
855 |
{ |
856 |
/* The remote modifier state is not correct */ |
857 |
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask)) |
858 |
{ |
859 |
/* Needs this modifier. Send down. */ |
860 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RALT); |
861 |
} |
862 |
else |
863 |
{ |
864 |
/* Should not use this modifier. Send up. */ |
865 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT); |
866 |
} |
867 |
} |
868 |
|
869 |
|
870 |
} |
871 |
|
872 |
|
873 |
unsigned int |
874 |
read_keyboard_state() |
875 |
{ |
876 |
#ifdef RDP2VNC |
877 |
return 0; |
878 |
#else |
879 |
unsigned int state; |
880 |
Window wdummy; |
881 |
int dummy; |
882 |
|
883 |
XQueryPointer(g_display, g_wnd, &wdummy, &wdummy, &dummy, &dummy, &dummy, &dummy, &state); |
884 |
return state; |
885 |
#endif |
886 |
} |
887 |
|
888 |
|
889 |
uint16 |
890 |
ui_get_numlock_state(unsigned int state) |
891 |
{ |
892 |
uint16 numlock_state = 0; |
893 |
|
894 |
if (get_key_state(state, XK_Num_Lock)) |
895 |
numlock_state = KBD_FLAG_NUMLOCK; |
896 |
|
897 |
return numlock_state; |
898 |
} |
899 |
|
900 |
|
901 |
void |
902 |
reset_modifier_keys() |
903 |
{ |
904 |
unsigned int state = read_keyboard_state(); |
905 |
|
906 |
/* reset keys */ |
907 |
uint32 ev_time; |
908 |
ev_time = time(NULL); |
909 |
|
910 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask) |
911 |
&& !get_key_state(state, XK_Shift_L)) |
912 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT); |
913 |
|
914 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightShiftMask) |
915 |
&& !get_key_state(state, XK_Shift_R)) |
916 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT); |
917 |
|
918 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftCtrlMask) |
919 |
&& !get_key_state(state, XK_Control_L)) |
920 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL); |
921 |
|
922 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightCtrlMask) |
923 |
&& !get_key_state(state, XK_Control_R)) |
924 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RCTRL); |
925 |
|
926 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftAltMask) && !get_key_state(state, XK_Alt_L)) |
927 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LALT); |
928 |
|
929 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) && |
930 |
!get_key_state(state, XK_Alt_R) && !get_key_state(state, XK_Mode_switch) |
931 |
&& !get_key_state(state, XK_ISO_Level3_Shift)) |
932 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT); |
933 |
|
934 |
reset_winkey(ev_time); |
935 |
|
936 |
if (g_numlock_sync) |
937 |
rdp_send_input(ev_time, RDP_INPUT_SYNCHRONIZE, 0, ui_get_numlock_state(state), 0); |
938 |
} |
939 |
|
940 |
|
941 |
static void |
942 |
update_modifier_state(uint8 scancode, BOOL pressed) |
943 |
{ |
944 |
#ifdef WITH_DEBUG_KBD |
945 |
uint16 old_modifier_state; |
946 |
|
947 |
old_modifier_state = remote_modifier_state; |
948 |
#endif |
949 |
|
950 |
switch (scancode) |
951 |
{ |
952 |
case SCANCODE_CHAR_LSHIFT: |
953 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftShiftMask, pressed); |
954 |
break; |
955 |
case SCANCODE_CHAR_RSHIFT: |
956 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightShiftMask, pressed); |
957 |
break; |
958 |
case SCANCODE_CHAR_LCTRL: |
959 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftCtrlMask, pressed); |
960 |
break; |
961 |
case SCANCODE_CHAR_RCTRL: |
962 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightCtrlMask, pressed); |
963 |
break; |
964 |
case SCANCODE_CHAR_LALT: |
965 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftAltMask, pressed); |
966 |
break; |
967 |
case SCANCODE_CHAR_RALT: |
968 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightAltMask, pressed); |
969 |
break; |
970 |
case SCANCODE_CHAR_LWIN: |
971 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftWinMask, pressed); |
972 |
break; |
973 |
case SCANCODE_CHAR_RWIN: |
974 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightWinMask, pressed); |
975 |
break; |
976 |
case SCANCODE_CHAR_NUMLOCK: |
977 |
/* KeyReleases for NumLocks are sent immediately. Toggle the |
978 |
modifier state only on Keypress */ |
979 |
if (pressed && !g_numlock_sync) |
980 |
{ |
981 |
BOOL newNumLockState; |
982 |
newNumLockState = |
983 |
(MASK_HAS_BITS |
984 |
(remote_modifier_state, MapNumLockMask) == False); |
985 |
MASK_CHANGE_BIT(remote_modifier_state, |
986 |
MapNumLockMask, newNumLockState); |
987 |
} |
988 |
} |
989 |
|
990 |
#ifdef WITH_DEBUG_KBD |
991 |
if (old_modifier_state != remote_modifier_state) |
992 |
{ |
993 |
DEBUG_KBD(("Before updating modifier_state:0x%x, pressed=0x%x\n", |
994 |
old_modifier_state, pressed)); |
995 |
DEBUG_KBD(("After updating modifier_state:0x%x\n", remote_modifier_state)); |
996 |
} |
997 |
#endif |
998 |
|
999 |
} |
1000 |
|
1001 |
/* Send keyboard input */ |
1002 |
void |
1003 |
rdp_send_scancode(uint32 time, uint16 flags, uint8 scancode) |
1004 |
{ |
1005 |
update_modifier_state(scancode, !(flags & RDP_KEYRELEASE)); |
1006 |
|
1007 |
if (scancode & SCANCODE_EXTENDED) |
1008 |
{ |
1009 |
DEBUG_KBD(("Sending extended scancode=0x%x, flags=0x%x\n", |
1010 |
scancode & ~SCANCODE_EXTENDED, flags)); |
1011 |
rdp_send_input(time, RDP_INPUT_SCANCODE, flags | KBD_FLAG_EXT, |
1012 |
scancode & ~SCANCODE_EXTENDED, 0); |
1013 |
} |
1014 |
else |
1015 |
{ |
1016 |
DEBUG_KBD(("Sending scancode=0x%x, flags=0x%x\n", scancode, flags)); |
1017 |
rdp_send_input(time, RDP_INPUT_SCANCODE, flags, scancode, 0); |
1018 |
} |
1019 |
} |