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 |
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|
30 |
#include <ctype.h> |
31 |
#include <limits.h> |
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#include <time.h> |
33 |
#include "rdesktop.h" |
34 |
#include "scancodes.h" |
35 |
|
36 |
#define KEYMAP_SIZE 0xffff+1 |
37 |
#define KEYMAP_MASK 0xffff |
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#define KEYMAP_MAX_LINE_LENGTH 80 |
39 |
|
40 |
extern Display *g_display; |
41 |
extern Window g_wnd; |
42 |
extern char keymapname[16]; |
43 |
extern int g_keylayout; |
44 |
extern int g_win_button_size; |
45 |
extern BOOL g_enable_compose; |
46 |
extern BOOL g_use_rdp5; |
47 |
extern BOOL g_numlock_sync; |
48 |
|
49 |
static BOOL keymap_loaded; |
50 |
static key_translation *keymap[KEYMAP_SIZE]; |
51 |
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; |
54 |
|
55 |
static void update_modifier_state(uint8 scancode, BOOL pressed); |
56 |
|
57 |
/* Free key_translation structure, included linked list */ |
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static void |
59 |
free_key_translation(key_translation * ptr) |
60 |
{ |
61 |
key_translation *next; |
62 |
|
63 |
while (ptr) |
64 |
{ |
65 |
next = ptr->next; |
66 |
xfree(ptr); |
67 |
ptr = next; |
68 |
} |
69 |
} |
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|
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static void |
72 |
add_to_keymap(char *keyname, uint8 scancode, uint16 modifiers, char *mapname) |
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{ |
74 |
KeySym keysym; |
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key_translation *tr; |
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|
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keysym = XStringToKeysym(keyname); |
78 |
if (keysym == NoSymbol) |
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{ |
80 |
DEBUG_KBD(("Bad keysym \"%s\" in keymap %s (ignoring)\n", keyname, mapname)); |
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return; |
82 |
} |
83 |
|
84 |
DEBUG_KBD(("Adding translation, keysym=0x%x, scancode=0x%x, " |
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"modifiers=0x%x\n", (unsigned int) keysym, scancode, modifiers)); |
86 |
|
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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; |
93 |
|
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return; |
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} |
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|
97 |
static void |
98 |
add_sequence(char *rest, char *mapname) |
99 |
{ |
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KeySym keysym; |
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key_translation *tr, **prev_next; |
102 |
size_t chars; |
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char keyname[KEYMAP_MAX_LINE_LENGTH]; |
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|
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/* Skip over whitespace after the sequence keyword */ |
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chars = strspn(rest, " \t"); |
107 |
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; |
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|
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keysym = XStringToKeysym(keyname); |
115 |
if (keysym == NoSymbol) |
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{ |
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DEBUG_KBD(("Bad keysym \"%s\" in keymap %s (ignoring line)\n", keyname, mapname)); |
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return; |
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} |
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|
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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"); |
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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; |
137 |
|
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keysym = XStringToKeysym(keyname); |
139 |
if (keysym == NoSymbol) |
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{ |
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DEBUG_KBD(("Bad keysym \"%s\" in keymap %s (ignoring line)\n", keyname, |
142 |
mapname)); |
143 |
return; |
144 |
} |
145 |
|
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/* Allocate space for key_translation structure */ |
147 |
tr = (key_translation *) xmalloc(sizeof(key_translation)); |
148 |
memset(tr, 0, sizeof(key_translation)); |
149 |
*prev_next = tr; |
150 |
prev_next = &tr->next; |
151 |
tr->seq_keysym = keysym; |
152 |
|
153 |
DEBUG_KBD(("0x%x, ", (unsigned int) keysym)); |
154 |
} |
155 |
DEBUG_KBD(("\n")); |
156 |
} |
157 |
|
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static BOOL |
159 |
xkeymap_read(char *mapname) |
160 |
{ |
161 |
FILE *fp; |
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char line[KEYMAP_MAX_LINE_LENGTH]; |
163 |
char path[PATH_MAX], inplace_path[PATH_MAX]; |
164 |
unsigned int line_num = 0; |
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unsigned int line_length = 0; |
166 |
char *keyname, *p; |
167 |
char *line_rest; |
168 |
uint8 scancode; |
169 |
uint16 modifiers; |
170 |
|
171 |
|
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strcpy(path, KEYMAP_PATH); |
173 |
strncat(path, mapname, sizeof(path) - sizeof(KEYMAP_PATH)); |
174 |
|
175 |
fp = fopen(path, "r"); |
176 |
if (fp == NULL) |
177 |
{ |
178 |
/* in case we are running from the source tree */ |
179 |
strcpy(inplace_path, "keymaps/"); |
180 |
strncat(inplace_path, mapname, sizeof(inplace_path) - sizeof("keymaps/")); |
181 |
|
182 |
fp = fopen(inplace_path, "r"); |
183 |
if (fp == NULL) |
184 |
{ |
185 |
error("Failed to open keymap %s\n", path); |
186 |
return False; |
187 |
} |
188 |
} |
189 |
|
190 |
/* FIXME: More tolerant on white space */ |
191 |
while (fgets(line, sizeof(line), fp) != NULL) |
192 |
{ |
193 |
line_num++; |
194 |
|
195 |
/* Replace the \n with \0 */ |
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p = strchr(line, '\n'); |
197 |
if (p != NULL) |
198 |
*p = 0; |
199 |
|
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line_length = strlen(line); |
201 |
|
202 |
/* Completely empty line */ |
203 |
if (strspn(line, " \t\n\r\f\v") == line_length) |
204 |
{ |
205 |
continue; |
206 |
} |
207 |
|
208 |
/* Include */ |
209 |
if (strncmp(line, "include ", 8) == 0) |
210 |
{ |
211 |
if (!xkeymap_read(line + 8)) |
212 |
return False; |
213 |
continue; |
214 |
} |
215 |
|
216 |
/* map */ |
217 |
if (strncmp(line, "map ", 4) == 0) |
218 |
{ |
219 |
g_keylayout = strtol(line + 4, NULL, 16); |
220 |
DEBUG_KBD(("Keylayout 0x%x\n", g_keylayout)); |
221 |
continue; |
222 |
} |
223 |
|
224 |
/* compose */ |
225 |
if (strncmp(line, "enable_compose", 15) == 0) |
226 |
{ |
227 |
DEBUG_KBD(("Enabling compose handling\n")); |
228 |
g_enable_compose = True; |
229 |
continue; |
230 |
} |
231 |
|
232 |
/* sequence */ |
233 |
if (strncmp(line, "sequence", 8) == 0) |
234 |
{ |
235 |
add_sequence(line + 8, mapname); |
236 |
continue; |
237 |
} |
238 |
|
239 |
/* Comment */ |
240 |
if (line[0] == '#') |
241 |
{ |
242 |
continue; |
243 |
} |
244 |
|
245 |
/* Normal line */ |
246 |
keyname = line; |
247 |
p = strchr(line, ' '); |
248 |
if (p == NULL) |
249 |
{ |
250 |
error("Bad line %d in keymap %s\n", line_num, mapname); |
251 |
continue; |
252 |
} |
253 |
else |
254 |
{ |
255 |
*p = 0; |
256 |
} |
257 |
|
258 |
/* scancode */ |
259 |
p++; |
260 |
scancode = strtol(p, &line_rest, 16); |
261 |
|
262 |
/* flags */ |
263 |
/* FIXME: Should allow case-insensitive flag names. |
264 |
Fix by using lex+yacc... */ |
265 |
modifiers = 0; |
266 |
if (strstr(line_rest, "altgr")) |
267 |
{ |
268 |
MASK_ADD_BITS(modifiers, MapAltGrMask); |
269 |
} |
270 |
|
271 |
if (strstr(line_rest, "shift")) |
272 |
{ |
273 |
MASK_ADD_BITS(modifiers, MapLeftShiftMask); |
274 |
} |
275 |
|
276 |
if (strstr(line_rest, "numlock")) |
277 |
{ |
278 |
MASK_ADD_BITS(modifiers, MapNumLockMask); |
279 |
} |
280 |
|
281 |
if (strstr(line_rest, "localstate")) |
282 |
{ |
283 |
MASK_ADD_BITS(modifiers, MapLocalStateMask); |
284 |
} |
285 |
|
286 |
if (strstr(line_rest, "inhibit")) |
287 |
{ |
288 |
MASK_ADD_BITS(modifiers, MapInhibitMask); |
289 |
} |
290 |
|
291 |
add_to_keymap(keyname, scancode, modifiers, mapname); |
292 |
|
293 |
if (strstr(line_rest, "addupper")) |
294 |
{ |
295 |
/* Automatically add uppercase key, with same modifiers |
296 |
plus shift */ |
297 |
for (p = keyname; *p; p++) |
298 |
*p = toupper((int) *p); |
299 |
MASK_ADD_BITS(modifiers, MapLeftShiftMask); |
300 |
add_to_keymap(keyname, scancode, modifiers, mapname); |
301 |
} |
302 |
} |
303 |
|
304 |
fclose(fp); |
305 |
return True; |
306 |
} |
307 |
|
308 |
|
309 |
/* Before connecting and creating UI */ |
310 |
void |
311 |
xkeymap_init(void) |
312 |
{ |
313 |
unsigned int max_keycode; |
314 |
char *mapname_ptr; |
315 |
|
316 |
/* Make keymapname lowercase */ |
317 |
mapname_ptr = keymapname; |
318 |
while (*mapname_ptr) |
319 |
{ |
320 |
*mapname_ptr = tolower((int) *mapname_ptr); |
321 |
mapname_ptr++; |
322 |
} |
323 |
|
324 |
if (strcmp(keymapname, "none")) |
325 |
{ |
326 |
if (xkeymap_read(keymapname)) |
327 |
keymap_loaded = True; |
328 |
} |
329 |
|
330 |
XDisplayKeycodes(g_display, &min_keycode, (int *) &max_keycode); |
331 |
} |
332 |
|
333 |
static void |
334 |
send_winkey(uint32 ev_time, BOOL pressed, BOOL leftkey) |
335 |
{ |
336 |
uint8 winkey; |
337 |
|
338 |
if (leftkey) |
339 |
winkey = SCANCODE_CHAR_LWIN; |
340 |
else |
341 |
winkey = SCANCODE_CHAR_RWIN; |
342 |
|
343 |
if (pressed) |
344 |
{ |
345 |
if (g_use_rdp5) |
346 |
{ |
347 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, winkey); |
348 |
} |
349 |
else |
350 |
{ |
351 |
/* RDP4 doesn't support winkey. Fake with Ctrl-Esc */ |
352 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LCTRL); |
353 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_ESC); |
354 |
} |
355 |
} |
356 |
else |
357 |
{ |
358 |
/* key released */ |
359 |
if (g_use_rdp5) |
360 |
{ |
361 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, winkey); |
362 |
} |
363 |
else |
364 |
{ |
365 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_ESC); |
366 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL); |
367 |
} |
368 |
} |
369 |
} |
370 |
|
371 |
static void |
372 |
reset_winkey(uint32 ev_time) |
373 |
{ |
374 |
if (g_use_rdp5) |
375 |
{ |
376 |
/* For some reason, it seems to suffice to release |
377 |
*either* the left or right winkey. */ |
378 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LWIN); |
379 |
} |
380 |
} |
381 |
|
382 |
/* Handle special key combinations */ |
383 |
BOOL |
384 |
handle_special_keys(uint32 keysym, unsigned int state, uint32 ev_time, BOOL pressed) |
385 |
{ |
386 |
switch (keysym) |
387 |
{ |
388 |
case XK_Return: |
389 |
if ((get_key_state(state, XK_Alt_L) || get_key_state(state, XK_Alt_R)) |
390 |
&& (get_key_state(state, XK_Control_L) |
391 |
|| get_key_state(state, XK_Control_R))) |
392 |
{ |
393 |
/* Ctrl-Alt-Enter: toggle full screen */ |
394 |
if (pressed) |
395 |
xwin_toggle_fullscreen(); |
396 |
return True; |
397 |
} |
398 |
break; |
399 |
|
400 |
case XK_Break: |
401 |
/* Send Break sequence E0 46 E0 C6 */ |
402 |
if (pressed) |
403 |
{ |
404 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, |
405 |
(SCANCODE_EXTENDED | 0x46)); |
406 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, |
407 |
(SCANCODE_EXTENDED | 0xc6)); |
408 |
} |
409 |
/* No release sequence */ |
410 |
return True; |
411 |
break; |
412 |
|
413 |
case XK_Pause: |
414 |
/* According to MS Keyboard Scan Code |
415 |
Specification, pressing Pause should result |
416 |
in E1 1D 45 E1 9D C5. I'm not exactly sure |
417 |
of how this is supposed to be sent via |
418 |
RDP. The code below seems to work, but with |
419 |
the side effect that Left Ctrl stays |
420 |
down. Therefore, we release it when Pause |
421 |
is released. */ |
422 |
if (pressed) |
423 |
{ |
424 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0); |
425 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x1d, 0); |
426 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x45, 0); |
427 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0); |
428 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x9d, 0); |
429 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xc5, 0); |
430 |
} |
431 |
else |
432 |
{ |
433 |
/* Release Left Ctrl */ |
434 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYRELEASE, |
435 |
0x1d, 0); |
436 |
} |
437 |
return True; |
438 |
break; |
439 |
|
440 |
case XK_Meta_L: /* Windows keys */ |
441 |
case XK_Super_L: |
442 |
case XK_Hyper_L: |
443 |
send_winkey(ev_time, pressed, True); |
444 |
return True; |
445 |
break; |
446 |
|
447 |
case XK_Meta_R: |
448 |
case XK_Super_R: |
449 |
case XK_Hyper_R: |
450 |
send_winkey(ev_time, pressed, False); |
451 |
return True; |
452 |
break; |
453 |
|
454 |
case XK_space: |
455 |
/* Prevent access to the Windows system menu in single app mode */ |
456 |
if (g_win_button_size |
457 |
&& (get_key_state(state, XK_Alt_L) || get_key_state(state, XK_Alt_R))) |
458 |
return True; |
459 |
break; |
460 |
|
461 |
case XK_Num_Lock: |
462 |
/* Synchronize on key release */ |
463 |
if (g_numlock_sync && !pressed) |
464 |
rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, |
465 |
ui_get_numlock_state(read_keyboard_state()), 0); |
466 |
|
467 |
/* Inhibit */ |
468 |
return True; |
469 |
break; |
470 |
|
471 |
} |
472 |
return False; |
473 |
} |
474 |
|
475 |
|
476 |
key_translation |
477 |
xkeymap_translate_key(uint32 keysym, unsigned int keycode, unsigned int state) |
478 |
{ |
479 |
key_translation tr = { 0, 0, 0, 0 }; |
480 |
key_translation *ptr; |
481 |
|
482 |
ptr = keymap[keysym & KEYMAP_MASK]; |
483 |
if (ptr) |
484 |
{ |
485 |
tr = *ptr; |
486 |
if (tr.seq_keysym == 0) /* Normal scancode translation */ |
487 |
{ |
488 |
if (tr.modifiers & MapInhibitMask) |
489 |
{ |
490 |
DEBUG_KBD(("Inhibiting key\n")); |
491 |
tr.scancode = 0; |
492 |
return tr; |
493 |
} |
494 |
|
495 |
if (tr.modifiers & MapLocalStateMask) |
496 |
{ |
497 |
/* The modifiers to send for this key should be obtained |
498 |
from the local state. Currently, only shift is implemented. */ |
499 |
if (state & ShiftMask) |
500 |
{ |
501 |
tr.modifiers = MapLeftShiftMask; |
502 |
} |
503 |
} |
504 |
|
505 |
if ((tr.modifiers & MapLeftShiftMask) |
506 |
&& ((remote_modifier_state & MapLeftCtrlMask) |
507 |
|| (remote_modifier_state & MapRightCtrlMask)) |
508 |
&& get_key_state(state, XK_Caps_Lock)) |
509 |
{ |
510 |
DEBUG_KBD(("CapsLock + Ctrl pressed, releasing LeftShift\n")); |
511 |
tr.modifiers ^= MapLeftShiftMask; |
512 |
} |
513 |
|
514 |
DEBUG_KBD(("Found scancode translation, scancode=0x%x, modifiers=0x%x\n", |
515 |
tr.scancode, tr.modifiers)); |
516 |
} |
517 |
} |
518 |
else |
519 |
{ |
520 |
if (keymap_loaded) |
521 |
warning("No translation for (keysym 0x%lx, %s)\n", keysym, |
522 |
get_ksname(keysym)); |
523 |
|
524 |
/* not in keymap, try to interpret the raw scancode */ |
525 |
if (((int) keycode >= min_keycode) && (keycode <= 0x60)) |
526 |
{ |
527 |
tr.scancode = keycode - min_keycode; |
528 |
|
529 |
/* The modifiers to send for this key should be |
530 |
obtained from the local state. Currently, only |
531 |
shift is implemented. */ |
532 |
if (state & ShiftMask) |
533 |
{ |
534 |
tr.modifiers = MapLeftShiftMask; |
535 |
} |
536 |
|
537 |
DEBUG_KBD(("Sending guessed scancode 0x%x\n", tr.scancode)); |
538 |
} |
539 |
else |
540 |
{ |
541 |
DEBUG_KBD(("No good guess for keycode 0x%x found\n", keycode)); |
542 |
} |
543 |
} |
544 |
|
545 |
return tr; |
546 |
} |
547 |
|
548 |
void |
549 |
xkeymap_send_keys(uint32 keysym, unsigned int keycode, unsigned int state, uint32 ev_time, |
550 |
BOOL pressed) |
551 |
{ |
552 |
key_translation tr, *ptr; |
553 |
tr = xkeymap_translate_key(keysym, keycode, state); |
554 |
|
555 |
if (tr.seq_keysym == 0) |
556 |
{ |
557 |
/* Scancode translation */ |
558 |
if (tr.scancode == 0) |
559 |
return; |
560 |
|
561 |
if (pressed) |
562 |
{ |
563 |
save_remote_modifiers(tr.scancode); |
564 |
ensure_remote_modifiers(ev_time, tr); |
565 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, tr.scancode); |
566 |
restore_remote_modifiers(ev_time, tr.scancode); |
567 |
} |
568 |
else |
569 |
{ |
570 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, tr.scancode); |
571 |
} |
572 |
return; |
573 |
} |
574 |
|
575 |
/* Sequence, only on key down */ |
576 |
if (pressed) |
577 |
{ |
578 |
ptr = &tr; |
579 |
do |
580 |
{ |
581 |
DEBUG_KBD(("Handling sequence element, keysym=0x%x\n", |
582 |
(unsigned int) ptr->seq_keysym)); |
583 |
xkeymap_send_keys(ptr->seq_keysym, keycode, state, ev_time, True); |
584 |
xkeymap_send_keys(ptr->seq_keysym, keycode, state, ev_time, False); |
585 |
ptr = ptr->next; |
586 |
} |
587 |
while (ptr); |
588 |
} |
589 |
} |
590 |
|
591 |
uint16 |
592 |
xkeymap_translate_button(unsigned int button) |
593 |
{ |
594 |
switch (button) |
595 |
{ |
596 |
case Button1: /* left */ |
597 |
return MOUSE_FLAG_BUTTON1; |
598 |
case Button2: /* middle */ |
599 |
return MOUSE_FLAG_BUTTON3; |
600 |
case Button3: /* right */ |
601 |
return MOUSE_FLAG_BUTTON2; |
602 |
case Button4: /* wheel up */ |
603 |
return MOUSE_FLAG_BUTTON4; |
604 |
case Button5: /* wheel down */ |
605 |
return MOUSE_FLAG_BUTTON5; |
606 |
} |
607 |
|
608 |
return 0; |
609 |
} |
610 |
|
611 |
char * |
612 |
get_ksname(uint32 keysym) |
613 |
{ |
614 |
char *ksname = NULL; |
615 |
|
616 |
if (keysym == NoSymbol) |
617 |
ksname = "NoSymbol"; |
618 |
else if (!(ksname = XKeysymToString(keysym))) |
619 |
ksname = "(no name)"; |
620 |
|
621 |
return ksname; |
622 |
} |
623 |
|
624 |
static BOOL |
625 |
is_modifier(uint8 scancode) |
626 |
{ |
627 |
switch (scancode) |
628 |
{ |
629 |
case SCANCODE_CHAR_LSHIFT: |
630 |
case SCANCODE_CHAR_RSHIFT: |
631 |
case SCANCODE_CHAR_LCTRL: |
632 |
case SCANCODE_CHAR_RCTRL: |
633 |
case SCANCODE_CHAR_LALT: |
634 |
case SCANCODE_CHAR_RALT: |
635 |
case SCANCODE_CHAR_LWIN: |
636 |
case SCANCODE_CHAR_RWIN: |
637 |
case SCANCODE_CHAR_NUMLOCK: |
638 |
return True; |
639 |
default: |
640 |
break; |
641 |
} |
642 |
return False; |
643 |
} |
644 |
|
645 |
void |
646 |
save_remote_modifiers(uint8 scancode) |
647 |
{ |
648 |
if (is_modifier(scancode)) |
649 |
return; |
650 |
|
651 |
saved_remote_modifier_state = remote_modifier_state; |
652 |
} |
653 |
|
654 |
void |
655 |
restore_remote_modifiers(uint32 ev_time, uint8 scancode) |
656 |
{ |
657 |
key_translation dummy; |
658 |
|
659 |
if (is_modifier(scancode)) |
660 |
return; |
661 |
|
662 |
dummy.scancode = 0; |
663 |
dummy.modifiers = saved_remote_modifier_state; |
664 |
ensure_remote_modifiers(ev_time, dummy); |
665 |
} |
666 |
|
667 |
void |
668 |
ensure_remote_modifiers(uint32 ev_time, key_translation tr) |
669 |
{ |
670 |
/* If this key is a modifier, do nothing */ |
671 |
if (is_modifier(tr.scancode)) |
672 |
return; |
673 |
|
674 |
if (!g_numlock_sync) |
675 |
{ |
676 |
/* NumLock */ |
677 |
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask) |
678 |
!= MASK_HAS_BITS(remote_modifier_state, MapNumLockMask)) |
679 |
{ |
680 |
/* The remote modifier state is not correct */ |
681 |
uint16 new_remote_state; |
682 |
|
683 |
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask)) |
684 |
{ |
685 |
DEBUG_KBD(("Remote NumLock state is incorrect, activating NumLock.\n")); |
686 |
new_remote_state = KBD_FLAG_NUMLOCK; |
687 |
remote_modifier_state = MapNumLockMask; |
688 |
} |
689 |
else |
690 |
{ |
691 |
DEBUG_KBD(("Remote NumLock state is incorrect, deactivating NumLock.\n")); |
692 |
new_remote_state = 0; |
693 |
remote_modifier_state = 0; |
694 |
} |
695 |
|
696 |
rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, new_remote_state, 0); |
697 |
} |
698 |
} |
699 |
|
700 |
|
701 |
/* Shift. Left shift and right shift are treated as equal; either is fine. */ |
702 |
if (MASK_HAS_BITS(tr.modifiers, MapShiftMask) |
703 |
!= MASK_HAS_BITS(remote_modifier_state, MapShiftMask)) |
704 |
{ |
705 |
/* The remote modifier state is not correct */ |
706 |
if (MASK_HAS_BITS(tr.modifiers, MapLeftShiftMask)) |
707 |
{ |
708 |
/* Needs left shift. Send down. */ |
709 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LSHIFT); |
710 |
} |
711 |
else if (MASK_HAS_BITS(tr.modifiers, MapRightShiftMask)) |
712 |
{ |
713 |
/* Needs right shift. Send down. */ |
714 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RSHIFT); |
715 |
} |
716 |
else |
717 |
{ |
718 |
/* Should not use this modifier. Send up for shift currently pressed. */ |
719 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask)) |
720 |
/* Left shift is down */ |
721 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT); |
722 |
else |
723 |
/* Right shift is down */ |
724 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT); |
725 |
} |
726 |
} |
727 |
|
728 |
/* AltGr */ |
729 |
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask) |
730 |
!= MASK_HAS_BITS(remote_modifier_state, MapAltGrMask)) |
731 |
{ |
732 |
/* The remote modifier state is not correct */ |
733 |
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask)) |
734 |
{ |
735 |
/* Needs this modifier. Send down. */ |
736 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RALT); |
737 |
} |
738 |
else |
739 |
{ |
740 |
/* Should not use this modifier. Send up. */ |
741 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT); |
742 |
} |
743 |
} |
744 |
|
745 |
|
746 |
} |
747 |
|
748 |
|
749 |
unsigned int |
750 |
read_keyboard_state() |
751 |
{ |
752 |
#ifdef RDP2VNC |
753 |
return 0; |
754 |
#else |
755 |
unsigned int state; |
756 |
Window wdummy; |
757 |
int dummy; |
758 |
|
759 |
XQueryPointer(g_display, g_wnd, &wdummy, &wdummy, &dummy, &dummy, &dummy, &dummy, &state); |
760 |
return state; |
761 |
#endif |
762 |
} |
763 |
|
764 |
|
765 |
uint16 |
766 |
ui_get_numlock_state(unsigned int state) |
767 |
{ |
768 |
uint16 numlock_state = 0; |
769 |
|
770 |
if (get_key_state(state, XK_Num_Lock)) |
771 |
numlock_state = KBD_FLAG_NUMLOCK; |
772 |
|
773 |
return numlock_state; |
774 |
} |
775 |
|
776 |
|
777 |
void |
778 |
reset_modifier_keys() |
779 |
{ |
780 |
unsigned int state = read_keyboard_state(); |
781 |
|
782 |
/* reset keys */ |
783 |
uint32 ev_time; |
784 |
ev_time = time(NULL); |
785 |
|
786 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask) |
787 |
&& !get_key_state(state, XK_Shift_L)) |
788 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT); |
789 |
|
790 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightShiftMask) |
791 |
&& !get_key_state(state, XK_Shift_R)) |
792 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT); |
793 |
|
794 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftCtrlMask) |
795 |
&& !get_key_state(state, XK_Control_L)) |
796 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL); |
797 |
|
798 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightCtrlMask) |
799 |
&& !get_key_state(state, XK_Control_R)) |
800 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RCTRL); |
801 |
|
802 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftAltMask) && !get_key_state(state, XK_Alt_L)) |
803 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LALT); |
804 |
|
805 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) && |
806 |
!get_key_state(state, XK_Alt_R) && !get_key_state(state, XK_Mode_switch) |
807 |
&& !get_key_state(state, XK_ISO_Level3_Shift)) |
808 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT); |
809 |
|
810 |
reset_winkey(ev_time); |
811 |
|
812 |
if (g_numlock_sync) |
813 |
rdp_send_input(ev_time, RDP_INPUT_SYNCHRONIZE, 0, ui_get_numlock_state(state), 0); |
814 |
} |
815 |
|
816 |
|
817 |
static void |
818 |
update_modifier_state(uint8 scancode, BOOL pressed) |
819 |
{ |
820 |
#ifdef WITH_DEBUG_KBD |
821 |
uint16 old_modifier_state; |
822 |
|
823 |
old_modifier_state = remote_modifier_state; |
824 |
#endif |
825 |
|
826 |
switch (scancode) |
827 |
{ |
828 |
case SCANCODE_CHAR_LSHIFT: |
829 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftShiftMask, pressed); |
830 |
break; |
831 |
case SCANCODE_CHAR_RSHIFT: |
832 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightShiftMask, pressed); |
833 |
break; |
834 |
case SCANCODE_CHAR_LCTRL: |
835 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftCtrlMask, pressed); |
836 |
break; |
837 |
case SCANCODE_CHAR_RCTRL: |
838 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightCtrlMask, pressed); |
839 |
break; |
840 |
case SCANCODE_CHAR_LALT: |
841 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftAltMask, pressed); |
842 |
break; |
843 |
case SCANCODE_CHAR_RALT: |
844 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightAltMask, pressed); |
845 |
break; |
846 |
case SCANCODE_CHAR_LWIN: |
847 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftWinMask, pressed); |
848 |
break; |
849 |
case SCANCODE_CHAR_RWIN: |
850 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightWinMask, pressed); |
851 |
break; |
852 |
case SCANCODE_CHAR_NUMLOCK: |
853 |
/* KeyReleases for NumLocks are sent immediately. Toggle the |
854 |
modifier state only on Keypress */ |
855 |
if (pressed && !g_numlock_sync) |
856 |
{ |
857 |
BOOL newNumLockState; |
858 |
newNumLockState = |
859 |
(MASK_HAS_BITS |
860 |
(remote_modifier_state, MapNumLockMask) == False); |
861 |
MASK_CHANGE_BIT(remote_modifier_state, |
862 |
MapNumLockMask, newNumLockState); |
863 |
} |
864 |
} |
865 |
|
866 |
#ifdef WITH_DEBUG_KBD |
867 |
if (old_modifier_state != remote_modifier_state) |
868 |
{ |
869 |
DEBUG_KBD(("Before updating modifier_state:0x%x, pressed=0x%x\n", |
870 |
old_modifier_state, pressed)); |
871 |
DEBUG_KBD(("After updating modifier_state:0x%x\n", remote_modifier_state)); |
872 |
} |
873 |
#endif |
874 |
|
875 |
} |
876 |
|
877 |
/* Send keyboard input */ |
878 |
void |
879 |
rdp_send_scancode(uint32 time, uint16 flags, uint8 scancode) |
880 |
{ |
881 |
update_modifier_state(scancode, !(flags & RDP_KEYRELEASE)); |
882 |
|
883 |
if (scancode & SCANCODE_EXTENDED) |
884 |
{ |
885 |
DEBUG_KBD(("Sending extended scancode=0x%x, flags=0x%x\n", |
886 |
scancode & ~SCANCODE_EXTENDED, flags)); |
887 |
rdp_send_input(time, RDP_INPUT_SCANCODE, flags | KBD_FLAG_EXT, |
888 |
scancode & ~SCANCODE_EXTENDED, 0); |
889 |
} |
890 |
else |
891 |
{ |
892 |
DEBUG_KBD(("Sending scancode=0x%x, flags=0x%x\n", scancode, flags)); |
893 |
rdp_send_input(time, RDP_INPUT_SCANCODE, flags, scancode, 0); |
894 |
} |
895 |
} |