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. |
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|
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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 |
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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. |
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*/ |
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|
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#ifdef RDP2VNC |
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#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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|
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#include <ctype.h> |
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#include <limits.h> |
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#include <time.h> |
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#include "rdesktop.h" |
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#include "scancodes.h" |
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|
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#define KEYMAP_SIZE 0xffff+1 |
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#define KEYMAP_MASK 0xffff |
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#define KEYMAP_MAX_LINE_LENGTH 80 |
39 |
|
40 |
extern Display *g_display; |
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extern Window g_wnd; |
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extern char keymapname[16]; |
43 |
extern int g_keylayout; |
44 |
extern int g_win_button_size; |
45 |
extern BOOL g_enable_compose; |
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extern BOOL g_use_rdp5; |
47 |
extern BOOL g_numlock_sync; |
48 |
|
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static BOOL keymap_loaded; |
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static key_translation *keymap[KEYMAP_SIZE]; |
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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; |
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|
55 |
static void update_modifier_state(uint8 scancode, BOOL pressed); |
56 |
|
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/* Free key_translation structure, including linked list */ |
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static void |
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free_key_translation(key_translation * ptr) |
60 |
{ |
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key_translation *next; |
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|
63 |
while (ptr) |
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{ |
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next = ptr->next; |
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xfree(ptr); |
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ptr = next; |
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} |
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} |
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|
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static void |
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add_to_keymap(char *keyname, uint8 scancode, uint16 modifiers, char *mapname) |
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{ |
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KeySym keysym; |
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key_translation *tr; |
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|
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keysym = XStringToKeysym(keyname); |
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if (keysym == NoSymbol) |
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{ |
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DEBUG_KBD(("Bad keysym \"%s\" in keymap %s (ignoring)\n", keyname, mapname)); |
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return; |
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} |
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|
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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)); |
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; |
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|
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return; |
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} |
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|
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static void |
98 |
add_sequence(char *rest, char *mapname) |
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{ |
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KeySym keysym; |
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key_translation *tr, **prev_next; |
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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"); |
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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; |
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|
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keysym = XStringToKeysym(keyname); |
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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; |
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|
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keysym = XStringToKeysym(keyname); |
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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)); |
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return; |
144 |
} |
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|
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/* Allocate space for key_translation structure */ |
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tr = (key_translation *) xmalloc(sizeof(key_translation)); |
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memset(tr, 0, sizeof(key_translation)); |
149 |
*prev_next = tr; |
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prev_next = &tr->next; |
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tr->seq_keysym = keysym; |
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|
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DEBUG_KBD(("0x%x, ", (unsigned int) keysym)); |
154 |
} |
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DEBUG_KBD(("\n")); |
156 |
} |
157 |
|
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/* Joins two path components. The result should be freed with |
159 |
xfree(). */ |
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static char * |
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pathjoin(const char *a, const char *b) |
162 |
{ |
163 |
char *result; |
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result = xmalloc(PATH_MAX * 2 + 1); |
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|
166 |
if (b[0] == '/') |
167 |
{ |
168 |
strncpy(result, b, PATH_MAX); |
169 |
} |
170 |
else |
171 |
{ |
172 |
strncpy(result, a, PATH_MAX); |
173 |
strcat(result, "/"); |
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strncat(result, b, PATH_MAX); |
175 |
} |
176 |
return result; |
177 |
} |
178 |
|
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/* Try to open a keymap with fopen() */ |
180 |
FILE * |
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xkeymap_open(const char *filename) |
182 |
{ |
183 |
char *path1, *path2; |
184 |
char *home; |
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FILE *fp; |
186 |
|
187 |
/* Try KEYMAP_PATH */ |
188 |
path1 = pathjoin(KEYMAP_PATH, filename); |
189 |
fp = fopen(path1, "r"); |
190 |
xfree(path1); |
191 |
if (fp) |
192 |
return fp; |
193 |
|
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/* Try ~/.rdesktop/keymaps */ |
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home = getenv("HOME"); |
196 |
if (home) |
197 |
{ |
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path1 = pathjoin(home, ".rdesktop/keymaps"); |
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path2 = pathjoin(path1, filename); |
200 |
xfree(path1); |
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fp = fopen(path2, "r"); |
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xfree(path2); |
203 |
if (fp) |
204 |
return fp; |
205 |
} |
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|
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/* Try current directory, in case we are running from the source |
208 |
tree */ |
209 |
path1 = pathjoin("keymaps", filename); |
210 |
fp = fopen(path1, "r"); |
211 |
xfree(path1); |
212 |
if (fp) |
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return fp; |
214 |
|
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return NULL; |
216 |
} |
217 |
|
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static BOOL |
219 |
xkeymap_read(char *mapname) |
220 |
{ |
221 |
FILE *fp; |
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char line[KEYMAP_MAX_LINE_LENGTH]; |
223 |
unsigned int line_num = 0; |
224 |
unsigned int line_length = 0; |
225 |
char *keyname, *p; |
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char *line_rest; |
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uint8 scancode; |
228 |
uint16 modifiers; |
229 |
|
230 |
fp = xkeymap_open(mapname); |
231 |
if (fp == NULL) |
232 |
{ |
233 |
error("Failed to open keymap %s\n", mapname); |
234 |
return False; |
235 |
} |
236 |
|
237 |
/* FIXME: More tolerant on white space */ |
238 |
while (fgets(line, sizeof(line), fp) != NULL) |
239 |
{ |
240 |
line_num++; |
241 |
|
242 |
/* Replace the \n with \0 */ |
243 |
p = strchr(line, '\n'); |
244 |
if (p != NULL) |
245 |
*p = 0; |
246 |
|
247 |
line_length = strlen(line); |
248 |
|
249 |
/* Completely empty line */ |
250 |
if (strspn(line, " \t\n\r\f\v") == line_length) |
251 |
{ |
252 |
continue; |
253 |
} |
254 |
|
255 |
/* Include */ |
256 |
if (strncmp(line, "include ", 8) == 0) |
257 |
{ |
258 |
if (!xkeymap_read(line + 8)) |
259 |
return False; |
260 |
continue; |
261 |
} |
262 |
|
263 |
/* map */ |
264 |
if (strncmp(line, "map ", 4) == 0) |
265 |
{ |
266 |
g_keylayout = strtol(line + 4, NULL, 16); |
267 |
DEBUG_KBD(("Keylayout 0x%x\n", g_keylayout)); |
268 |
continue; |
269 |
} |
270 |
|
271 |
/* compose */ |
272 |
if (strncmp(line, "enable_compose", 15) == 0) |
273 |
{ |
274 |
DEBUG_KBD(("Enabling compose handling\n")); |
275 |
g_enable_compose = True; |
276 |
continue; |
277 |
} |
278 |
|
279 |
/* sequence */ |
280 |
if (strncmp(line, "sequence", 8) == 0) |
281 |
{ |
282 |
add_sequence(line + 8, mapname); |
283 |
continue; |
284 |
} |
285 |
|
286 |
/* Comment */ |
287 |
if (line[0] == '#') |
288 |
{ |
289 |
continue; |
290 |
} |
291 |
|
292 |
/* Normal line */ |
293 |
keyname = line; |
294 |
p = strchr(line, ' '); |
295 |
if (p == NULL) |
296 |
{ |
297 |
error("Bad line %d in keymap %s\n", line_num, mapname); |
298 |
continue; |
299 |
} |
300 |
else |
301 |
{ |
302 |
*p = 0; |
303 |
} |
304 |
|
305 |
/* scancode */ |
306 |
p++; |
307 |
scancode = strtol(p, &line_rest, 16); |
308 |
|
309 |
/* flags */ |
310 |
/* FIXME: Should allow case-insensitive flag names. |
311 |
Fix by using lex+yacc... */ |
312 |
modifiers = 0; |
313 |
if (strstr(line_rest, "altgr")) |
314 |
{ |
315 |
MASK_ADD_BITS(modifiers, MapAltGrMask); |
316 |
} |
317 |
|
318 |
if (strstr(line_rest, "shift")) |
319 |
{ |
320 |
MASK_ADD_BITS(modifiers, MapLeftShiftMask); |
321 |
} |
322 |
|
323 |
if (strstr(line_rest, "numlock")) |
324 |
{ |
325 |
MASK_ADD_BITS(modifiers, MapNumLockMask); |
326 |
} |
327 |
|
328 |
if (strstr(line_rest, "localstate")) |
329 |
{ |
330 |
MASK_ADD_BITS(modifiers, MapLocalStateMask); |
331 |
} |
332 |
|
333 |
if (strstr(line_rest, "inhibit")) |
334 |
{ |
335 |
MASK_ADD_BITS(modifiers, MapInhibitMask); |
336 |
} |
337 |
|
338 |
add_to_keymap(keyname, scancode, modifiers, mapname); |
339 |
|
340 |
if (strstr(line_rest, "addupper")) |
341 |
{ |
342 |
/* Automatically add uppercase key, with same modifiers |
343 |
plus shift */ |
344 |
for (p = keyname; *p; p++) |
345 |
*p = toupper((int) *p); |
346 |
MASK_ADD_BITS(modifiers, MapLeftShiftMask); |
347 |
add_to_keymap(keyname, scancode, modifiers, mapname); |
348 |
} |
349 |
} |
350 |
|
351 |
fclose(fp); |
352 |
return True; |
353 |
} |
354 |
|
355 |
|
356 |
/* Before connecting and creating UI */ |
357 |
void |
358 |
xkeymap_init(void) |
359 |
{ |
360 |
unsigned int max_keycode; |
361 |
char *mapname_ptr; |
362 |
|
363 |
/* Make keymapname lowercase */ |
364 |
mapname_ptr = keymapname; |
365 |
while (*mapname_ptr) |
366 |
{ |
367 |
*mapname_ptr = tolower((int) *mapname_ptr); |
368 |
mapname_ptr++; |
369 |
} |
370 |
|
371 |
if (strcmp(keymapname, "none")) |
372 |
{ |
373 |
if (xkeymap_read(keymapname)) |
374 |
keymap_loaded = True; |
375 |
} |
376 |
|
377 |
XDisplayKeycodes(g_display, &min_keycode, (int *) &max_keycode); |
378 |
} |
379 |
|
380 |
static void |
381 |
send_winkey(uint32 ev_time, BOOL pressed, BOOL leftkey) |
382 |
{ |
383 |
uint8 winkey; |
384 |
|
385 |
if (leftkey) |
386 |
winkey = SCANCODE_CHAR_LWIN; |
387 |
else |
388 |
winkey = SCANCODE_CHAR_RWIN; |
389 |
|
390 |
if (pressed) |
391 |
{ |
392 |
if (g_use_rdp5) |
393 |
{ |
394 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, winkey); |
395 |
} |
396 |
else |
397 |
{ |
398 |
/* RDP4 doesn't support winkey. Fake with Ctrl-Esc */ |
399 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LCTRL); |
400 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_ESC); |
401 |
} |
402 |
} |
403 |
else |
404 |
{ |
405 |
/* key released */ |
406 |
if (g_use_rdp5) |
407 |
{ |
408 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, winkey); |
409 |
} |
410 |
else |
411 |
{ |
412 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_ESC); |
413 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL); |
414 |
} |
415 |
} |
416 |
} |
417 |
|
418 |
static void |
419 |
reset_winkey(uint32 ev_time) |
420 |
{ |
421 |
if (g_use_rdp5) |
422 |
{ |
423 |
/* For some reason, it seems to suffice to release |
424 |
*either* the left or right winkey. */ |
425 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LWIN); |
426 |
} |
427 |
} |
428 |
|
429 |
/* Handle special key combinations */ |
430 |
BOOL |
431 |
handle_special_keys(uint32 keysym, unsigned int state, uint32 ev_time, BOOL pressed) |
432 |
{ |
433 |
switch (keysym) |
434 |
{ |
435 |
case XK_Return: |
436 |
if ((get_key_state(state, XK_Alt_L) || get_key_state(state, XK_Alt_R)) |
437 |
&& (get_key_state(state, XK_Control_L) |
438 |
|| get_key_state(state, XK_Control_R))) |
439 |
{ |
440 |
/* Ctrl-Alt-Enter: toggle full screen */ |
441 |
if (pressed) |
442 |
xwin_toggle_fullscreen(); |
443 |
return True; |
444 |
} |
445 |
break; |
446 |
|
447 |
case XK_Break: |
448 |
/* Send Break sequence E0 46 E0 C6 */ |
449 |
if (pressed) |
450 |
{ |
451 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, |
452 |
(SCANCODE_EXTENDED | 0x46)); |
453 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, |
454 |
(SCANCODE_EXTENDED | 0xc6)); |
455 |
} |
456 |
/* No release sequence */ |
457 |
return True; |
458 |
break; |
459 |
|
460 |
case XK_Pause: |
461 |
/* According to MS Keyboard Scan Code |
462 |
Specification, pressing Pause should result |
463 |
in E1 1D 45 E1 9D C5. I'm not exactly sure |
464 |
of how this is supposed to be sent via |
465 |
RDP. The code below seems to work, but with |
466 |
the side effect that Left Ctrl stays |
467 |
down. Therefore, we release it when Pause |
468 |
is released. */ |
469 |
if (pressed) |
470 |
{ |
471 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0); |
472 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x1d, 0); |
473 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x45, 0); |
474 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0); |
475 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x9d, 0); |
476 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xc5, 0); |
477 |
} |
478 |
else |
479 |
{ |
480 |
/* Release Left Ctrl */ |
481 |
rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYRELEASE, |
482 |
0x1d, 0); |
483 |
} |
484 |
return True; |
485 |
break; |
486 |
|
487 |
case XK_Meta_L: /* Windows keys */ |
488 |
case XK_Super_L: |
489 |
case XK_Hyper_L: |
490 |
send_winkey(ev_time, pressed, True); |
491 |
return True; |
492 |
break; |
493 |
|
494 |
case XK_Meta_R: |
495 |
case XK_Super_R: |
496 |
case XK_Hyper_R: |
497 |
send_winkey(ev_time, pressed, False); |
498 |
return True; |
499 |
break; |
500 |
|
501 |
case XK_space: |
502 |
/* Prevent access to the Windows system menu in single app mode */ |
503 |
if (g_win_button_size |
504 |
&& (get_key_state(state, XK_Alt_L) || get_key_state(state, XK_Alt_R))) |
505 |
return True; |
506 |
break; |
507 |
|
508 |
case XK_Num_Lock: |
509 |
/* Synchronize on key release */ |
510 |
if (g_numlock_sync && !pressed) |
511 |
rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, |
512 |
ui_get_numlock_state(read_keyboard_state()), 0); |
513 |
|
514 |
/* Inhibit */ |
515 |
return True; |
516 |
break; |
517 |
|
518 |
} |
519 |
return False; |
520 |
} |
521 |
|
522 |
|
523 |
key_translation |
524 |
xkeymap_translate_key(uint32 keysym, unsigned int keycode, unsigned int state) |
525 |
{ |
526 |
key_translation tr = { 0, 0, 0, 0 }; |
527 |
key_translation *ptr; |
528 |
|
529 |
ptr = keymap[keysym & KEYMAP_MASK]; |
530 |
if (ptr) |
531 |
{ |
532 |
tr = *ptr; |
533 |
if (tr.seq_keysym == 0) /* Normal scancode translation */ |
534 |
{ |
535 |
if (tr.modifiers & MapInhibitMask) |
536 |
{ |
537 |
DEBUG_KBD(("Inhibiting key\n")); |
538 |
tr.scancode = 0; |
539 |
return tr; |
540 |
} |
541 |
|
542 |
if (tr.modifiers & MapLocalStateMask) |
543 |
{ |
544 |
/* The modifiers to send for this key should be obtained |
545 |
from the local state. Currently, only shift is implemented. */ |
546 |
if (state & ShiftMask) |
547 |
{ |
548 |
tr.modifiers = MapLeftShiftMask; |
549 |
} |
550 |
} |
551 |
|
552 |
if ((tr.modifiers & MapLeftShiftMask) |
553 |
&& ((remote_modifier_state & MapLeftCtrlMask) |
554 |
|| (remote_modifier_state & MapRightCtrlMask)) |
555 |
&& get_key_state(state, XK_Caps_Lock)) |
556 |
{ |
557 |
DEBUG_KBD(("CapsLock + Ctrl pressed, releasing LeftShift\n")); |
558 |
tr.modifiers ^= MapLeftShiftMask; |
559 |
} |
560 |
|
561 |
DEBUG_KBD(("Found scancode translation, scancode=0x%x, modifiers=0x%x\n", |
562 |
tr.scancode, tr.modifiers)); |
563 |
} |
564 |
} |
565 |
else |
566 |
{ |
567 |
if (keymap_loaded) |
568 |
warning("No translation for (keysym 0x%lx, %s)\n", keysym, |
569 |
get_ksname(keysym)); |
570 |
|
571 |
/* not in keymap, try to interpret the raw scancode */ |
572 |
if (((int) keycode >= min_keycode) && (keycode <= 0x60)) |
573 |
{ |
574 |
tr.scancode = keycode - min_keycode; |
575 |
|
576 |
/* The modifiers to send for this key should be |
577 |
obtained from the local state. Currently, only |
578 |
shift is implemented. */ |
579 |
if (state & ShiftMask) |
580 |
{ |
581 |
tr.modifiers = MapLeftShiftMask; |
582 |
} |
583 |
|
584 |
DEBUG_KBD(("Sending guessed scancode 0x%x\n", tr.scancode)); |
585 |
} |
586 |
else |
587 |
{ |
588 |
DEBUG_KBD(("No good guess for keycode 0x%x found\n", keycode)); |
589 |
} |
590 |
} |
591 |
|
592 |
return tr; |
593 |
} |
594 |
|
595 |
void |
596 |
xkeymap_send_keys(uint32 keysym, unsigned int keycode, unsigned int state, uint32 ev_time, |
597 |
BOOL pressed) |
598 |
{ |
599 |
key_translation tr, *ptr; |
600 |
tr = xkeymap_translate_key(keysym, keycode, state); |
601 |
|
602 |
if (tr.seq_keysym == 0) |
603 |
{ |
604 |
/* Scancode translation */ |
605 |
if (tr.scancode == 0) |
606 |
return; |
607 |
|
608 |
if (pressed) |
609 |
{ |
610 |
save_remote_modifiers(tr.scancode); |
611 |
ensure_remote_modifiers(ev_time, tr); |
612 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, tr.scancode); |
613 |
restore_remote_modifiers(ev_time, tr.scancode); |
614 |
} |
615 |
else |
616 |
{ |
617 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, tr.scancode); |
618 |
} |
619 |
return; |
620 |
} |
621 |
|
622 |
/* Sequence, only on key down */ |
623 |
if (pressed) |
624 |
{ |
625 |
ptr = &tr; |
626 |
do |
627 |
{ |
628 |
DEBUG_KBD(("Handling sequence element, keysym=0x%x\n", |
629 |
(unsigned int) ptr->seq_keysym)); |
630 |
xkeymap_send_keys(ptr->seq_keysym, keycode, state, ev_time, True); |
631 |
xkeymap_send_keys(ptr->seq_keysym, keycode, state, ev_time, False); |
632 |
ptr = ptr->next; |
633 |
} |
634 |
while (ptr); |
635 |
} |
636 |
} |
637 |
|
638 |
uint16 |
639 |
xkeymap_translate_button(unsigned int button) |
640 |
{ |
641 |
switch (button) |
642 |
{ |
643 |
case Button1: /* left */ |
644 |
return MOUSE_FLAG_BUTTON1; |
645 |
case Button2: /* middle */ |
646 |
return MOUSE_FLAG_BUTTON3; |
647 |
case Button3: /* right */ |
648 |
return MOUSE_FLAG_BUTTON2; |
649 |
case Button4: /* wheel up */ |
650 |
return MOUSE_FLAG_BUTTON4; |
651 |
case Button5: /* wheel down */ |
652 |
return MOUSE_FLAG_BUTTON5; |
653 |
} |
654 |
|
655 |
return 0; |
656 |
} |
657 |
|
658 |
char * |
659 |
get_ksname(uint32 keysym) |
660 |
{ |
661 |
char *ksname = NULL; |
662 |
|
663 |
if (keysym == NoSymbol) |
664 |
ksname = "NoSymbol"; |
665 |
else if (!(ksname = XKeysymToString(keysym))) |
666 |
ksname = "(no name)"; |
667 |
|
668 |
return ksname; |
669 |
} |
670 |
|
671 |
static BOOL |
672 |
is_modifier(uint8 scancode) |
673 |
{ |
674 |
switch (scancode) |
675 |
{ |
676 |
case SCANCODE_CHAR_LSHIFT: |
677 |
case SCANCODE_CHAR_RSHIFT: |
678 |
case SCANCODE_CHAR_LCTRL: |
679 |
case SCANCODE_CHAR_RCTRL: |
680 |
case SCANCODE_CHAR_LALT: |
681 |
case SCANCODE_CHAR_RALT: |
682 |
case SCANCODE_CHAR_LWIN: |
683 |
case SCANCODE_CHAR_RWIN: |
684 |
case SCANCODE_CHAR_NUMLOCK: |
685 |
return True; |
686 |
default: |
687 |
break; |
688 |
} |
689 |
return False; |
690 |
} |
691 |
|
692 |
void |
693 |
save_remote_modifiers(uint8 scancode) |
694 |
{ |
695 |
if (is_modifier(scancode)) |
696 |
return; |
697 |
|
698 |
saved_remote_modifier_state = remote_modifier_state; |
699 |
} |
700 |
|
701 |
void |
702 |
restore_remote_modifiers(uint32 ev_time, uint8 scancode) |
703 |
{ |
704 |
key_translation dummy; |
705 |
|
706 |
if (is_modifier(scancode)) |
707 |
return; |
708 |
|
709 |
dummy.scancode = 0; |
710 |
dummy.modifiers = saved_remote_modifier_state; |
711 |
ensure_remote_modifiers(ev_time, dummy); |
712 |
} |
713 |
|
714 |
void |
715 |
ensure_remote_modifiers(uint32 ev_time, key_translation tr) |
716 |
{ |
717 |
/* If this key is a modifier, do nothing */ |
718 |
if (is_modifier(tr.scancode)) |
719 |
return; |
720 |
|
721 |
if (!g_numlock_sync) |
722 |
{ |
723 |
/* NumLock */ |
724 |
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask) |
725 |
!= MASK_HAS_BITS(remote_modifier_state, MapNumLockMask)) |
726 |
{ |
727 |
/* The remote modifier state is not correct */ |
728 |
uint16 new_remote_state; |
729 |
|
730 |
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask)) |
731 |
{ |
732 |
DEBUG_KBD(("Remote NumLock state is incorrect, activating NumLock.\n")); |
733 |
new_remote_state = KBD_FLAG_NUMLOCK; |
734 |
remote_modifier_state = MapNumLockMask; |
735 |
} |
736 |
else |
737 |
{ |
738 |
DEBUG_KBD(("Remote NumLock state is incorrect, deactivating NumLock.\n")); |
739 |
new_remote_state = 0; |
740 |
remote_modifier_state = 0; |
741 |
} |
742 |
|
743 |
rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, new_remote_state, 0); |
744 |
} |
745 |
} |
746 |
|
747 |
|
748 |
/* Shift. Left shift and right shift are treated as equal; either is fine. */ |
749 |
if (MASK_HAS_BITS(tr.modifiers, MapShiftMask) |
750 |
!= MASK_HAS_BITS(remote_modifier_state, MapShiftMask)) |
751 |
{ |
752 |
/* The remote modifier state is not correct */ |
753 |
if (MASK_HAS_BITS(tr.modifiers, MapLeftShiftMask)) |
754 |
{ |
755 |
/* Needs left shift. Send down. */ |
756 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LSHIFT); |
757 |
} |
758 |
else if (MASK_HAS_BITS(tr.modifiers, MapRightShiftMask)) |
759 |
{ |
760 |
/* Needs right shift. Send down. */ |
761 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RSHIFT); |
762 |
} |
763 |
else |
764 |
{ |
765 |
/* Should not use this modifier. Send up for shift currently pressed. */ |
766 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask)) |
767 |
/* Left shift is down */ |
768 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT); |
769 |
else |
770 |
/* Right shift is down */ |
771 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT); |
772 |
} |
773 |
} |
774 |
|
775 |
/* AltGr */ |
776 |
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask) |
777 |
!= MASK_HAS_BITS(remote_modifier_state, MapAltGrMask)) |
778 |
{ |
779 |
/* The remote modifier state is not correct */ |
780 |
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask)) |
781 |
{ |
782 |
/* Needs this modifier. Send down. */ |
783 |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RALT); |
784 |
} |
785 |
else |
786 |
{ |
787 |
/* Should not use this modifier. Send up. */ |
788 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT); |
789 |
} |
790 |
} |
791 |
|
792 |
|
793 |
} |
794 |
|
795 |
|
796 |
unsigned int |
797 |
read_keyboard_state() |
798 |
{ |
799 |
#ifdef RDP2VNC |
800 |
return 0; |
801 |
#else |
802 |
unsigned int state; |
803 |
Window wdummy; |
804 |
int dummy; |
805 |
|
806 |
XQueryPointer(g_display, g_wnd, &wdummy, &wdummy, &dummy, &dummy, &dummy, &dummy, &state); |
807 |
return state; |
808 |
#endif |
809 |
} |
810 |
|
811 |
|
812 |
uint16 |
813 |
ui_get_numlock_state(unsigned int state) |
814 |
{ |
815 |
uint16 numlock_state = 0; |
816 |
|
817 |
if (get_key_state(state, XK_Num_Lock)) |
818 |
numlock_state = KBD_FLAG_NUMLOCK; |
819 |
|
820 |
return numlock_state; |
821 |
} |
822 |
|
823 |
|
824 |
void |
825 |
reset_modifier_keys() |
826 |
{ |
827 |
unsigned int state = read_keyboard_state(); |
828 |
|
829 |
/* reset keys */ |
830 |
uint32 ev_time; |
831 |
ev_time = time(NULL); |
832 |
|
833 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask) |
834 |
&& !get_key_state(state, XK_Shift_L)) |
835 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT); |
836 |
|
837 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightShiftMask) |
838 |
&& !get_key_state(state, XK_Shift_R)) |
839 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT); |
840 |
|
841 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftCtrlMask) |
842 |
&& !get_key_state(state, XK_Control_L)) |
843 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL); |
844 |
|
845 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightCtrlMask) |
846 |
&& !get_key_state(state, XK_Control_R)) |
847 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RCTRL); |
848 |
|
849 |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftAltMask) && !get_key_state(state, XK_Alt_L)) |
850 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LALT); |
851 |
|
852 |
if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) && |
853 |
!get_key_state(state, XK_Alt_R) && !get_key_state(state, XK_Mode_switch) |
854 |
&& !get_key_state(state, XK_ISO_Level3_Shift)) |
855 |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT); |
856 |
|
857 |
reset_winkey(ev_time); |
858 |
|
859 |
if (g_numlock_sync) |
860 |
rdp_send_input(ev_time, RDP_INPUT_SYNCHRONIZE, 0, ui_get_numlock_state(state), 0); |
861 |
} |
862 |
|
863 |
|
864 |
static void |
865 |
update_modifier_state(uint8 scancode, BOOL pressed) |
866 |
{ |
867 |
#ifdef WITH_DEBUG_KBD |
868 |
uint16 old_modifier_state; |
869 |
|
870 |
old_modifier_state = remote_modifier_state; |
871 |
#endif |
872 |
|
873 |
switch (scancode) |
874 |
{ |
875 |
case SCANCODE_CHAR_LSHIFT: |
876 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftShiftMask, pressed); |
877 |
break; |
878 |
case SCANCODE_CHAR_RSHIFT: |
879 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightShiftMask, pressed); |
880 |
break; |
881 |
case SCANCODE_CHAR_LCTRL: |
882 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftCtrlMask, pressed); |
883 |
break; |
884 |
case SCANCODE_CHAR_RCTRL: |
885 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightCtrlMask, pressed); |
886 |
break; |
887 |
case SCANCODE_CHAR_LALT: |
888 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftAltMask, pressed); |
889 |
break; |
890 |
case SCANCODE_CHAR_RALT: |
891 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightAltMask, pressed); |
892 |
break; |
893 |
case SCANCODE_CHAR_LWIN: |
894 |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftWinMask, pressed); |
895 |
break; |
896 |
case SCANCODE_CHAR_RWIN: |
897 |
MASK_CHANGE_BIT(remote_modifier_state, MapRightWinMask, pressed); |
898 |
break; |
899 |
case SCANCODE_CHAR_NUMLOCK: |
900 |
/* KeyReleases for NumLocks are sent immediately. Toggle the |
901 |
modifier state only on Keypress */ |
902 |
if (pressed && !g_numlock_sync) |
903 |
{ |
904 |
BOOL newNumLockState; |
905 |
newNumLockState = |
906 |
(MASK_HAS_BITS |
907 |
(remote_modifier_state, MapNumLockMask) == False); |
908 |
MASK_CHANGE_BIT(remote_modifier_state, |
909 |
MapNumLockMask, newNumLockState); |
910 |
} |
911 |
} |
912 |
|
913 |
#ifdef WITH_DEBUG_KBD |
914 |
if (old_modifier_state != remote_modifier_state) |
915 |
{ |
916 |
DEBUG_KBD(("Before updating modifier_state:0x%x, pressed=0x%x\n", |
917 |
old_modifier_state, pressed)); |
918 |
DEBUG_KBD(("After updating modifier_state:0x%x\n", remote_modifier_state)); |
919 |
} |
920 |
#endif |
921 |
|
922 |
} |
923 |
|
924 |
/* Send keyboard input */ |
925 |
void |
926 |
rdp_send_scancode(uint32 time, uint16 flags, uint8 scancode) |
927 |
{ |
928 |
update_modifier_state(scancode, !(flags & RDP_KEYRELEASE)); |
929 |
|
930 |
if (scancode & SCANCODE_EXTENDED) |
931 |
{ |
932 |
DEBUG_KBD(("Sending extended scancode=0x%x, flags=0x%x\n", |
933 |
scancode & ~SCANCODE_EXTENDED, flags)); |
934 |
rdp_send_input(time, RDP_INPUT_SCANCODE, flags | KBD_FLAG_EXT, |
935 |
scancode & ~SCANCODE_EXTENDED, 0); |
936 |
} |
937 |
else |
938 |
{ |
939 |
DEBUG_KBD(("Sending scancode=0x%x, flags=0x%x\n", scancode, flags)); |
940 |
rdp_send_input(time, RDP_INPUT_SCANCODE, flags, scancode, 0); |
941 |
} |
942 |
} |