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