xkeymap.c@ 9902

Last change on this file since 9902 was 9902, checked in by vboxsync, 16 years ago
Added rdesktop 1.6.0.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 24.3 KB

Line
1	/* -- c-basic-offset: 8 --
2	rdesktop: A Remote Desktop Protocol client.
3	User interface services - X keyboard mapping
4
5	Copyright (C) Matthew Chapman 1999-2007
6	Copyright (C) Peter Astrand <astrand@cendio.se> 2003-2007
7
8	This program is free software; you can redistribute it and/or modify
9	it under the terms of the GNU General Public License as published by
10	the Free Software Foundation; either version 2 of the License, or
11	(at your option) any later version.
12
13	This program is distributed in the hope that it will be useful,
14	but WITHOUT ANY WARRANTY; without even the implied warranty of
15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	GNU General Public License for more details.
17
18	You should have received a copy of the GNU General Public License
19	along with this program; if not, write to the Free Software
20	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21	*/
22
23	#ifdef RDP2VNC
24	#include "vnc/x11stubs.h"
25	#else
26	#include <X11/Xlib.h>
27	#include <X11/keysym.h>
28	#endif
29
30	#include <ctype.h>
31	#include <limits.h>
32	#include <time.h>
33	#include <string.h>
34	#include "rdesktop.h"
35	#include "scancodes.h"
36
37	#define KEYMAP_SIZE 0xffff+1
38	#define KEYMAP_MASK 0xffff
39	#define KEYMAP_MAX_LINE_LENGTH 80
40
41	extern Display *g_display;
42	extern Window g_wnd;
43	extern char g_keymapname[16];
44	extern unsigned int g_keylayout;
45	extern int g_keyboard_type;
46	extern int g_keyboard_subtype;
47	extern int g_keyboard_functionkeys;
48	extern int g_win_button_size;
49	extern RD_BOOL g_enable_compose;
50	extern RD_BOOL g_use_rdp5;
51	extern RD_BOOL g_numlock_sync;
52
53	static RD_BOOL keymap_loaded;
54	static key_translation *keymap[KEYMAP_SIZE];
55	static int min_keycode;
56	static uint16 remote_modifier_state = 0;
57	static uint16 saved_remote_modifier_state = 0;
58
59	static void update_modifier_state(uint8 scancode, RD_BOOL pressed);
60
61	/* Free key_translation structure, including linked list */
62	static void
63	free_key_translation(key_translation * ptr)
64	{
65	key_translation *next;
66
67	while (ptr)
68	{
69	next = ptr->next;
70	xfree(ptr);
71	ptr = next;
72	}
73	}
74
75	static void
76	add_to_keymap(char keyname, uint8 scancode, uint16 modifiers, char mapname)
77	{
78	KeySym keysym;
79	key_translation *tr;
80
81	keysym = XStringToKeysym(keyname);
82	if (keysym == NoSymbol)
83	{
84	DEBUG_KBD(("Bad keysym \"%s\" in keymap %s (ignoring)\n", keyname, mapname));
85	return;
86	}
87
88	DEBUG_KBD(("Adding translation, keysym=0x%x, scancode=0x%x, "
89	"modifiers=0x%x\n", (unsigned int) keysym, scancode, modifiers));
90
91	tr = (key_translation *) xmalloc(sizeof(key_translation));
92	memset(tr, 0, sizeof(key_translation));
93	tr->scancode = scancode;
94	tr->modifiers = modifiers;
95	free_key_translation(keymap[keysym & KEYMAP_MASK]);
96	keymap[keysym & KEYMAP_MASK] = tr;
97
98	return;
99	}
100
101	static void
102	add_sequence(char rest, char mapname)
103	{
104	KeySym keysym;
105	key_translation tr, *prev_next;
106	size_t chars;
107	char keyname[KEYMAP_MAX_LINE_LENGTH];
108
109	/* Skip over whitespace after the sequence keyword */
110	chars = strspn(rest, " \t");
111	rest += chars;
112
113	/* Fetch the keysym name */
114	chars = strcspn(rest, " \t\0");
115	STRNCPY(keyname, rest, chars + 1);
116	rest += chars;
117
118	keysym = XStringToKeysym(keyname);
119	if (keysym == NoSymbol)
120	{
121	DEBUG_KBD(("Bad keysym \"%s\" in keymap %s (ignoring line)\n", keyname, mapname));
122	return;
123	}
124
125
126	DEBUG_KBD(("Adding sequence for keysym (0x%lx, %s) -> ", keysym, keyname));
127
128	free_key_translation(keymap[keysym & KEYMAP_MASK]);
129	prev_next = &keymap[keysym & KEYMAP_MASK];
130
131	while (*rest)
132	{
133	/* Skip whitespace */
134	chars = strspn(rest, " \t");
135	rest += chars;
136
137	/* Fetch the keysym name */
138	chars = strcspn(rest, " \t\0");
139	STRNCPY(keyname, rest, chars + 1);
140	rest += chars;
141
142	keysym = XStringToKeysym(keyname);
143	if (keysym == NoSymbol)
144	{
145	DEBUG_KBD(("Bad keysym \"%s\" in keymap %s (ignoring line)\n", keyname,
146	mapname));
147	return;
148	}
149
150	/* Allocate space for key_translation structure */
151	tr = (key_translation *) xmalloc(sizeof(key_translation));
152	memset(tr, 0, sizeof(key_translation));
153	*prev_next = tr;
154	prev_next = &tr->next;
155	tr->seq_keysym = keysym;
156
157	DEBUG_KBD(("0x%x, ", (unsigned int) keysym));
158	}
159	DEBUG_KBD(("\n"));
160	}
161
162	RD_BOOL
163	xkeymap_from_locale(const char *locale)
164	{
165	char str, ptr;
166	FILE *fp;
167
168	/* Create a working copy */
169	str = xstrdup(locale);
170
171	/* Truncate at dot and at */
172	ptr = strrchr(str, '.');
173	if (ptr)
174	*ptr = '\0';
175	ptr = strrchr(str, '@');
176	if (ptr)
177	*ptr = '\0';
178
179	/* Replace _ with - */
180	ptr = strrchr(str, '_');
181	if (ptr)
182	*ptr = '-';
183
184	/* Convert to lowercase */
185	ptr = str;
186	while (*ptr)
187	{
188	ptr = tolower((int) ptr);
189	ptr++;
190	}
191
192	/* Try to open this keymap (da-dk) */
193	fp = xkeymap_open(str);
194	if (fp == NULL)
195	{
196	/* Truncate at dash */
197	ptr = strrchr(str, '-');
198	if (ptr)
199	*ptr = '\0';
200
201	/* Try the short name (da) */
202	fp = xkeymap_open(str);
203	}
204
205	if (fp)
206	{
207	fclose(fp);
208	STRNCPY(g_keymapname, str, sizeof(g_keymapname));
209	xfree(str);
210	return True;
211	}
212
213	xfree(str);
214	return False;
215	}
216
217
218	/* Joins two path components. The result should be freed with
219	xfree(). */
220	static char *
221	pathjoin(const char a, const char b)
222	{
223	char *result;
224	result = xmalloc(PATH_MAX * 2 + 1);
225
226	if (b[0] == '/')
227	{
228	strncpy(result, b, PATH_MAX);
229	}
230	else
231	{
232	strncpy(result, a, PATH_MAX);
233	strcat(result, "/");
234	strncat(result, b, PATH_MAX);
235	}
236	return result;
237	}
238
239	/* Try to open a keymap with fopen() */
240	FILE *
241	xkeymap_open(const char *filename)
242	{
243	char path1, path2;
244	char *home;
245	FILE *fp;
246
247	/* Try ~/.rdesktop/keymaps */
248	home = getenv("HOME");
249	if (home)
250	{
251	path1 = pathjoin(home, ".rdesktop/keymaps");
252	path2 = pathjoin(path1, filename);
253	xfree(path1);
254	fp = fopen(path2, "r");
255	xfree(path2);
256	if (fp)
257	return fp;
258	}
259
260	/* Try KEYMAP_PATH */
261	path1 = pathjoin(KEYMAP_PATH, filename);
262	fp = fopen(path1, "r");
263	xfree(path1);
264	if (fp)
265	return fp;
266
267	/* Try current directory, in case we are running from the source
268	tree */
269	path1 = pathjoin("keymaps", filename);
270	fp = fopen(path1, "r");
271	xfree(path1);
272	if (fp)
273	return fp;
274
275	return NULL;
276	}
277
278	static RD_BOOL
279	xkeymap_read(char *mapname)
280	{
281	FILE *fp;
282	char line[KEYMAP_MAX_LINE_LENGTH];
283	unsigned int line_num = 0;
284	unsigned int line_length = 0;
285	char keyname, p;
286	char *line_rest;
287	uint8 scancode;
288	uint16 modifiers;
289
290	fp = xkeymap_open(mapname);
291	if (fp == NULL)
292	{
293	error("Failed to open keymap %s\n", mapname);
294	return False;
295	}
296
297	/* FIXME: More tolerant on white space */
298	while (fgets(line, sizeof(line), fp) != NULL)
299	{
300	line_num++;
301
302	/* Replace the \n with \0 */
303	p = strchr(line, '\n');
304	if (p != NULL)
305	*p = 0;
306
307	line_length = strlen(line);
308
309	/* Completely empty line */
310	if (strspn(line, " \t\n\r\f\v") == line_length)
311	{
312	continue;
313	}
314
315	/* Include */
316	if (str_startswith(line, "include "))
317	{
318	if (!xkeymap_read(line + sizeof("include ") - 1))
319	return False;
320	continue;
321	}
322
323	/* map */
324	if (str_startswith(line, "map "))
325	{
326	g_keylayout = strtoul(line + sizeof("map ") - 1, NULL, 16);
327	DEBUG_KBD(("Keylayout 0x%x\n", g_keylayout));
328	continue;
329	}
330
331	/* compose */
332	if (str_startswith(line, "enable_compose"))
333	{
334	DEBUG_KBD(("Enabling compose handling\n"));
335	g_enable_compose = True;
336	continue;
337	}
338
339	/* sequence */
340	if (str_startswith(line, "sequence"))
341	{
342	add_sequence(line + sizeof("sequence") - 1, mapname);
343	continue;
344	}
345
346	/* keyboard_type */
347	if (str_startswith(line, "keyboard_type "))
348	{
349	g_keyboard_type = strtol(line + sizeof("keyboard_type ") - 1, NULL, 16);
350	DEBUG_KBD(("keyboard_type 0x%x\n", g_keyboard_type));
351	continue;
352	}
353
354	/* keyboard_subtype */
355	if (str_startswith(line, "keyboard_subtype "))
356	{
357	g_keyboard_subtype =
358	strtol(line + sizeof("keyboard_subtype ") - 1, NULL, 16);
359	DEBUG_KBD(("keyboard_subtype 0x%x\n", g_keyboard_subtype));
360	continue;
361	}
362
363	/* keyboard_functionkeys */
364	if (str_startswith(line, "keyboard_functionkeys "))
365	{
366	g_keyboard_functionkeys =
367	strtol(line + sizeof("keyboard_functionkeys ") - 1, NULL, 16);
368	DEBUG_KBD(("keyboard_functionkeys 0x%x\n", g_keyboard_functionkeys));
369	continue;
370	}
371
372	/* Comment */
373	if (line[0] == '#')
374	{
375	continue;
376	}
377
378	/* Normal line */
379	keyname = line;
380	p = strchr(line, ' ');
381	if (p == NULL)
382	{
383	error("Bad line %d in keymap %s\n", line_num, mapname);
384	continue;
385	}
386	else
387	{
388	*p = 0;
389	}
390
391	/* scancode */
392	p++;
393	scancode = strtol(p, &line_rest, 16);
394
395	/* flags */
396	/* FIXME: Should allow case-insensitive flag names.
397	Fix by using lex+yacc... */
398	modifiers = 0;
399	if (strstr(line_rest, "altgr"))
400	{
401	MASK_ADD_BITS(modifiers, MapAltGrMask);
402	}
403
404	if (strstr(line_rest, "shift"))
405	{
406	MASK_ADD_BITS(modifiers, MapLeftShiftMask);
407	}
408
409	if (strstr(line_rest, "numlock"))
410	{
411	MASK_ADD_BITS(modifiers, MapNumLockMask);
412	}
413
414	if (strstr(line_rest, "localstate"))
415	{
416	MASK_ADD_BITS(modifiers, MapLocalStateMask);
417	}
418
419	if (strstr(line_rest, "inhibit"))
420	{
421	MASK_ADD_BITS(modifiers, MapInhibitMask);
422	}
423
424	add_to_keymap(keyname, scancode, modifiers, mapname);
425
426	if (strstr(line_rest, "addupper"))
427	{
428	/* Automatically add uppercase key, with same modifiers
429	plus shift */
430	for (p = keyname; *p; p++)
431	p = toupper((int) p);
432	MASK_ADD_BITS(modifiers, MapLeftShiftMask);
433	add_to_keymap(keyname, scancode, modifiers, mapname);
434	}
435	}
436
437	fclose(fp);
438	return True;
439	}
440
441
442	/* Before connecting and creating UI */
443	void
444	xkeymap_init(void)
445	{
446	unsigned int max_keycode;
447
448	if (strcmp(g_keymapname, "none"))
449	{
450	if (xkeymap_read(g_keymapname))
451	keymap_loaded = True;
452	}
453
454	XDisplayKeycodes(g_display, &min_keycode, (int *) &max_keycode);
455	}
456
457	static void
458	send_winkey(uint32 ev_time, RD_BOOL pressed, RD_BOOL leftkey)
459	{
460	uint8 winkey;
461
462	if (leftkey)
463	winkey = SCANCODE_CHAR_LWIN;
464	else
465	winkey = SCANCODE_CHAR_RWIN;
466
467	if (pressed)
468	{
469	if (g_use_rdp5)
470	{
471	rdp_send_scancode(ev_time, RDP_KEYPRESS, winkey);
472	}
473	else
474	{
475	/* RDP4 doesn't support winkey. Fake with Ctrl-Esc */
476	rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LCTRL);
477	rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_ESC);
478	}
479	}
480	else
481	{
482	/* key released */
483	if (g_use_rdp5)
484	{
485	rdp_send_scancode(ev_time, RDP_KEYRELEASE, winkey);
486	}
487	else
488	{
489	rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_ESC);
490	rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL);
491	}
492	}
493	}
494
495	static void
496	reset_winkey(uint32 ev_time)
497	{
498	if (g_use_rdp5)
499	{
500	/* For some reason, it seems to suffice to release
501	either the left or right winkey. */
502	rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LWIN);
503	}
504	}
505
506	/* Handle special key combinations */
507	RD_BOOL
508	handle_special_keys(uint32 keysym, unsigned int state, uint32 ev_time, RD_BOOL pressed)
509	{
510	switch (keysym)
511	{
512	case XK_Return:
513	if ((get_key_state(state, XK_Alt_L) \|\| get_key_state(state, XK_Alt_R))
514	&& (get_key_state(state, XK_Control_L)
515	\|\| get_key_state(state, XK_Control_R)))
516	{
517	/* Ctrl-Alt-Enter: toggle full screen */
518	if (pressed)
519	xwin_toggle_fullscreen();
520	return True;
521	}
522	break;
523
524	case XK_Break:
525	#ifdef RDESKTOP_KBD_CODE
526	/* Send Break sequence E0 46 E0 C6 */
527	if (pressed)
528	{
529	rdp_send_scancode(ev_time, RDP_KEYPRESS,
530	(SCANCODE_EXTENDED \| 0x46));
531	rdp_send_scancode(ev_time, RDP_KEYPRESS,
532	(SCANCODE_EXTENDED \| 0xc6));
533	}
534	/* No release sequence */
535	return True;
536	#else
537	/* Send Break sequence E0 46 E0 C6 */
538	if (pressed)
539	{
540	/* VirtualBox code begin */
541	rdp_send_input(ev_time, RDP_INPUT_SCANCODE, KBD_FLAG_EXT, 0x46, 0);
542	rdp_send_input(ev_time, RDP_INPUT_SCANCODE, KBD_FLAG_EXT \| KBD_FLAG_UP, 0x46, 0);
543	/* VirtualBox code end */
544	}
545	/* No release sequence */
546	return True;
547	#endif /* RDESKTOP_KBD_CODE */
548	break;
549
550	case XK_Pause:
551	#ifdef RDESKTOP_KBD_CODE
552	/* According to MS Keyboard Scan Code
553	Specification, pressing Pause should result
554	in E1 1D 45 E1 9D C5. I'm not exactly sure
555	of how this is supposed to be sent via
556	RDP. The code below seems to work, but with
557	the side effect that Left Ctrl stays
558	down. Therefore, we release it when Pause
559	is released. */
560	if (pressed)
561	{
562	rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0);
563	rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x1d, 0);
564	rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x45, 0);
565	rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0);
566	rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x9d, 0);
567	rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xc5, 0);
568	}
569	else
570	{
571	/* Release Left Ctrl */
572	rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYRELEASE,
573	0x1d, 0);
574	}
575	return True;
576	#else
577	/* Send Break sequence E1 1D 45 E1 9D C5 */
578	if (pressed)
579	{
580	/* VirtualBox code begin */
581	rdp_send_input(ev_time, RDP_INPUT_SCANCODE, KBD_FLAG_EXT2, 0x1d, 0);
582	rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x45, 0);
583	rdp_send_input(ev_time, RDP_INPUT_SCANCODE, KBD_FLAG_EXT2 \| KBD_FLAG_UP, 0x1d, 0);
584	rdp_send_input(ev_time, RDP_INPUT_SCANCODE, KBD_FLAG_UP, 0x45, 0);
585	/* VirtualBox code end */
586	}
587	/* No release sequence */
588	return True;
589	#endif /* RDESKTOP_KBD_CODE */
590	break;
591
592	case XK_Meta_L: /* Windows keys */
593	case XK_Super_L:
594	case XK_Hyper_L:
595	send_winkey(ev_time, pressed, True);
596	return True;
597	break;
598
599	case XK_Meta_R:
600	case XK_Super_R:
601	case XK_Hyper_R:
602	send_winkey(ev_time, pressed, False);
603	return True;
604	break;
605
606	case XK_space:
607	/* Prevent access to the Windows system menu in single app mode */
608	if (g_win_button_size
609	&& (get_key_state(state, XK_Alt_L) \|\| get_key_state(state, XK_Alt_R)))
610	return True;
611	break;
612
613	case XK_Num_Lock:
614	/* Synchronize on key release */
615	if (g_numlock_sync && !pressed)
616	rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0,
617	ui_get_numlock_state(read_keyboard_state()), 0);
618
619	/* Inhibit */
620	return True;
621	break;
622	case XK_Overlay1_Enable:
623	/* Toggle SeamlessRDP */
624	if (pressed)
625	ui_seamless_toggle();
626	break;
627
628	}
629	return False;
630	}
631
632
633	key_translation
634	xkeymap_translate_key(uint32 keysym, unsigned int keycode, unsigned int state)
635	{
636	key_translation tr = { 0, 0, 0, 0 };
637	key_translation *ptr;
638
639	ptr = keymap[keysym & KEYMAP_MASK];
640	if (ptr)
641	{
642	tr = *ptr;
643	if (tr.seq_keysym == 0) /* Normal scancode translation */
644	{
645	if (MASK_HAS_BITS(tr.modifiers, MapInhibitMask))
646	{
647	DEBUG_KBD(("Inhibiting key\n"));
648	tr.scancode = 0;
649	return tr;
650	}
651
652	if (MASK_HAS_BITS(tr.modifiers, MapLocalStateMask))
653	{
654	/* The modifiers to send for this key should be obtained
655	from the local state. Currently, only shift is implemented. */
656	if (MASK_HAS_BITS(state, ShiftMask))
657	{
658	tr.modifiers = MapLeftShiftMask;
659	}
660	}
661
662	/* Windows interprets CapsLock+Ctrl+key
663	differently from Shift+Ctrl+key. Since we
664	are simulating CapsLock with Shifts, things
665	like Ctrl+f with CapsLock on breaks. To
666	solve this, we are releasing Shift if Ctrl
667	is on, but only if Shift isn't physically pressed. */
668	if (MASK_HAS_BITS(tr.modifiers, MapShiftMask)
669	&& MASK_HAS_BITS(remote_modifier_state, MapCtrlMask)
670	&& !MASK_HAS_BITS(state, ShiftMask))
671	{
672	DEBUG_KBD(("Non-physical Shift + Ctrl pressed, releasing Shift\n"));
673	MASK_REMOVE_BITS(tr.modifiers, MapShiftMask);
674	}
675
676	DEBUG_KBD(("Found scancode translation, scancode=0x%x, modifiers=0x%x\n",
677	tr.scancode, tr.modifiers));
678	}
679	}
680	else
681	{
682	if (keymap_loaded)
683	warning("No translation for (keysym 0x%lx, %s)\n", keysym,
684	get_ksname(keysym));
685
686	/* not in keymap, try to interpret the raw scancode */
687	if (((int) keycode >= min_keycode) && (keycode <= 0x60))
688	{
689	tr.scancode = keycode - min_keycode;
690
691	/* The modifiers to send for this key should be
692	obtained from the local state. Currently, only
693	shift is implemented. */
694	if (MASK_HAS_BITS(state, ShiftMask))
695	{
696	tr.modifiers = MapLeftShiftMask;
697	}
698
699	DEBUG_KBD(("Sending guessed scancode 0x%x\n", tr.scancode));
700	}
701	else
702	{
703	DEBUG_KBD(("No good guess for keycode 0x%x found\n", keycode));
704	}
705	}
706
707	return tr;
708	}
709
710	static RD_BOOL
711	is_modifier(uint8 scancode)
712	{
713	switch (scancode)
714	{
715	case SCANCODE_CHAR_LSHIFT:
716	case SCANCODE_CHAR_RSHIFT:
717	case SCANCODE_CHAR_LCTRL:
718	case SCANCODE_CHAR_RCTRL:
719	case SCANCODE_CHAR_LALT:
720	case SCANCODE_CHAR_RALT:
721	case SCANCODE_CHAR_LWIN:
722	case SCANCODE_CHAR_RWIN:
723	case SCANCODE_CHAR_NUMLOCK:
724	return True;
725	default:
726	break;
727	}
728	return False;
729	}
730
731
732	void
733	xkeymap_send_keys(uint32 keysym, unsigned int keycode, unsigned int state, uint32 ev_time,
734	RD_BOOL pressed, uint8 nesting)
735	{
736	key_translation tr, *ptr;
737	tr = xkeymap_translate_key(keysym, keycode, state);
738
739	if (tr.seq_keysym == 0)
740	{
741	/* Scancode translation */
742	if (tr.scancode == 0)
743	return;
744
745	save_remote_modifiers(tr.scancode);
746	ensure_remote_modifiers(ev_time, tr);
747	rdp_send_scancode(ev_time, pressed ? RDP_KEYPRESS : RDP_KEYRELEASE, tr.scancode);
748	restore_remote_modifiers(ev_time, tr.scancode);
749	return;
750	}
751
752	/* Sequence, only on key down */
753	if (pressed)
754	{
755	ptr = &tr;
756	do
757	{
758	DEBUG_KBD(("Handling sequence element, keysym=0x%x\n",
759	(unsigned int) ptr->seq_keysym));
760
761	if (nesting++ > 32)
762	{
763	error("Sequence nesting too deep\n");
764	return;
765	}
766
767	xkeymap_send_keys(ptr->seq_keysym, keycode, state, ev_time, True, nesting);
768	xkeymap_send_keys(ptr->seq_keysym, keycode, state, ev_time, False, nesting);
769	ptr = ptr->next;
770	}
771	while (ptr);
772	}
773	}
774
775	uint16
776	xkeymap_translate_button(unsigned int button)
777	{
778	switch (button)
779	{
780	case Button1: /* left */
781	return MOUSE_FLAG_BUTTON1;
782	case Button2: /* middle */
783	return MOUSE_FLAG_BUTTON3;
784	case Button3: /* right */
785	return MOUSE_FLAG_BUTTON2;
786	case Button4: /* wheel up */
787	return MOUSE_FLAG_BUTTON4;
788	case Button5: /* wheel down */
789	return MOUSE_FLAG_BUTTON5;
790	}
791
792	return 0;
793	}
794
795	char *
796	get_ksname(uint32 keysym)
797	{
798	char *ksname = NULL;
799
800	if (keysym == NoSymbol)
801	ksname = "NoSymbol";
802	else if (!(ksname = XKeysymToString(keysym)))
803	ksname = "(no name)";
804
805	return ksname;
806	}
807
808	void
809	save_remote_modifiers(uint8 scancode)
810	{
811	if (is_modifier(scancode))
812	return;
813
814	saved_remote_modifier_state = remote_modifier_state;
815	}
816
817	void
818	restore_remote_modifiers(uint32 ev_time, uint8 scancode)
819	{
820	key_translation dummy;
821
822	if (is_modifier(scancode))
823	return;
824
825	dummy.scancode = 0;
826	dummy.modifiers = saved_remote_modifier_state;
827	ensure_remote_modifiers(ev_time, dummy);
828	}
829
830	void
831	ensure_remote_modifiers(uint32 ev_time, key_translation tr)
832	{
833	/* If this key is a modifier, do nothing */
834	if (is_modifier(tr.scancode))
835	return;
836
837	if (!g_numlock_sync)
838	{
839	/* NumLock */
840	if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask)
841	!= MASK_HAS_BITS(remote_modifier_state, MapNumLockMask))
842	{
843	/* The remote modifier state is not correct */
844	uint16 new_remote_state;
845
846	if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask))
847	{
848	DEBUG_KBD(("Remote NumLock state is incorrect, activating NumLock.\n"));
849	new_remote_state = KBD_FLAG_NUMLOCK;
850	remote_modifier_state = MapNumLockMask;
851	}
852	else
853	{
854	DEBUG_KBD(("Remote NumLock state is incorrect, deactivating NumLock.\n"));
855	new_remote_state = 0;
856	remote_modifier_state = 0;
857	}
858
859	rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, new_remote_state, 0);
860	}
861	}
862
863
864	/* Shift. Left shift and right shift are treated as equal; either is fine. */
865	if (MASK_HAS_BITS(tr.modifiers, MapShiftMask)
866	!= MASK_HAS_BITS(remote_modifier_state, MapShiftMask))
867	{
868	/* The remote modifier state is not correct */
869	if (MASK_HAS_BITS(tr.modifiers, MapLeftShiftMask))
870	{
871	/* Needs left shift. Send down. */
872	rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LSHIFT);
873	}
874	else if (MASK_HAS_BITS(tr.modifiers, MapRightShiftMask))
875	{
876	/* Needs right shift. Send down. */
877	rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RSHIFT);
878	}
879	else
880	{
881	/* Should not use this modifier. Send up for shift currently pressed. */
882	if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask))
883	/* Left shift is down */
884	rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT);
885	else
886	/* Right shift is down */
887	rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT);
888	}
889	}
890
891	/* AltGr */
892	if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask)
893	!= MASK_HAS_BITS(remote_modifier_state, MapAltGrMask))
894	{
895	/* The remote modifier state is not correct */
896	if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask))
897	{
898	/* Needs this modifier. Send down. */
899	rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RALT);
900	}
901	else
902	{
903	/* Should not use this modifier. Send up. */
904	rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT);
905	}
906	}
907
908
909	}
910
911
912	unsigned int
913	read_keyboard_state()
914	{
915	#ifdef RDP2VNC
916	return 0;
917	#else
918	unsigned int state;
919	Window wdummy;
920	int dummy;
921
922	XQueryPointer(g_display, g_wnd, &wdummy, &wdummy, &dummy, &dummy, &dummy, &dummy, &state);
923	return state;
924	#endif
925	}
926
927
928	uint16
929	ui_get_numlock_state(unsigned int state)
930	{
931	uint16 numlock_state = 0;
932
933	if (get_key_state(state, XK_Num_Lock))
934	numlock_state = KBD_FLAG_NUMLOCK;
935
936	return numlock_state;
937	}
938
939
940	void
941	reset_modifier_keys()
942	{
943	unsigned int state = read_keyboard_state();
944
945	/* reset keys */
946	uint32 ev_time;
947	ev_time = time(NULL);
948
949	if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask)
950	&& !get_key_state(state, XK_Shift_L))
951	rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT);
952
953	if (MASK_HAS_BITS(remote_modifier_state, MapRightShiftMask)
954	&& !get_key_state(state, XK_Shift_R))
955	rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT);
956
957	if (MASK_HAS_BITS(remote_modifier_state, MapLeftCtrlMask)
958	&& !get_key_state(state, XK_Control_L))
959	rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL);
960
961	if (MASK_HAS_BITS(remote_modifier_state, MapRightCtrlMask)
962	&& !get_key_state(state, XK_Control_R))
963	rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RCTRL);
964
965	if (MASK_HAS_BITS(remote_modifier_state, MapLeftAltMask) && !get_key_state(state, XK_Alt_L))
966	rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LALT);
967
968	if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) &&
969	!get_key_state(state, XK_Alt_R) && !get_key_state(state, XK_Mode_switch)
970	&& !get_key_state(state, XK_ISO_Level3_Shift))
971	rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT);
972
973	reset_winkey(ev_time);
974
975	if (g_numlock_sync)
976	rdp_send_input(ev_time, RDP_INPUT_SYNCHRONIZE, 0, ui_get_numlock_state(state), 0);
977	}
978
979
980	static void
981	update_modifier_state(uint8 scancode, RD_BOOL pressed)
982	{
983	#ifdef WITH_DEBUG_KBD
984	uint16 old_modifier_state;
985
986	old_modifier_state = remote_modifier_state;
987	#endif
988
989	switch (scancode)
990	{
991	case SCANCODE_CHAR_LSHIFT:
992	MASK_CHANGE_BIT(remote_modifier_state, MapLeftShiftMask, pressed);
993	break;
994	case SCANCODE_CHAR_RSHIFT:
995	MASK_CHANGE_BIT(remote_modifier_state, MapRightShiftMask, pressed);
996	break;
997	case SCANCODE_CHAR_LCTRL:
998	MASK_CHANGE_BIT(remote_modifier_state, MapLeftCtrlMask, pressed);
999	break;
1000	case SCANCODE_CHAR_RCTRL:
1001	MASK_CHANGE_BIT(remote_modifier_state, MapRightCtrlMask, pressed);
1002	break;
1003	case SCANCODE_CHAR_LALT:
1004	MASK_CHANGE_BIT(remote_modifier_state, MapLeftAltMask, pressed);
1005	break;
1006	case SCANCODE_CHAR_RALT:
1007	MASK_CHANGE_BIT(remote_modifier_state, MapRightAltMask, pressed);
1008	break;
1009	case SCANCODE_CHAR_LWIN:
1010	MASK_CHANGE_BIT(remote_modifier_state, MapLeftWinMask, pressed);
1011	break;
1012	case SCANCODE_CHAR_RWIN:
1013	MASK_CHANGE_BIT(remote_modifier_state, MapRightWinMask, pressed);
1014	break;
1015	case SCANCODE_CHAR_NUMLOCK:
1016	/* KeyReleases for NumLocks are sent immediately. Toggle the
1017	modifier state only on Keypress */
1018	if (pressed && !g_numlock_sync)
1019	{
1020	RD_BOOL newNumLockState;
1021	newNumLockState =
1022	(MASK_HAS_BITS
1023	(remote_modifier_state, MapNumLockMask) == False);
1024	MASK_CHANGE_BIT(remote_modifier_state,
1025	MapNumLockMask, newNumLockState);
1026	}
1027	}
1028
1029	#ifdef WITH_DEBUG_KBD
1030	if (old_modifier_state != remote_modifier_state)
1031	{
1032	DEBUG_KBD(("Before updating modifier_state:0x%x, pressed=0x%x\n",
1033	old_modifier_state, pressed));
1034	DEBUG_KBD(("After updating modifier_state:0x%x\n", remote_modifier_state));
1035	}
1036	#endif
1037
1038	}
1039
1040	/* Send keyboard input */
1041	void
1042	rdp_send_scancode(uint32 time, uint16 flags, uint8 scancode)
1043	{
1044	update_modifier_state(scancode, !(flags & RDP_KEYRELEASE));
1045
1046	if (scancode & SCANCODE_EXTENDED)
1047	{
1048	DEBUG_KBD(("Sending extended scancode=0x%x, flags=0x%x\n",
1049	scancode & ~SCANCODE_EXTENDED, flags));
1050	rdp_send_input(time, RDP_INPUT_SCANCODE, flags \| KBD_FLAG_EXT,
1051	scancode & ~SCANCODE_EXTENDED, 0);
1052	}
1053	else
1054	{
1055	DEBUG_KBD(("Sending scancode=0x%x, flags=0x%x\n", scancode, flags));
1056	rdp_send_input(time, RDP_INPUT_SCANCODE, flags, scancode, 0);
1057	}
1058	}

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/RDP/client/xkeymap.c@ 9902

Download in other formats: