/[rdesktop]/sourceforge.net/trunk/rdesktop/xkeymap.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 170 by astrand, Tue Sep 17 08:18:41 2002 UTC revision 297 by matthewc, Tue Jan 28 12:27:28 2003 UTC
# Line 1  Line 1 
1  /*  /*
2     rdesktop: A Remote Desktop Protocol client.     rdesktop: A Remote Desktop Protocol client.
3     User interface services - X keyboard mapping     User interface services - X keyboard mapping
4     Copyright (C) Matthew Chapman 1999-2001     Copyright (C) Matthew Chapman 1999-2002
5        
6     This program is free software; you can redistribute it and/or modify     This program is free software; you can redistribute it and/or modify
7     it under the terms of the GNU General Public License as published by     it under the terms of the GNU General Public License as published by
# Line 19  Line 19 
19  */  */
20    
21  #include <X11/Xlib.h>  #include <X11/Xlib.h>
22  #include <X11/keysym.h>  #define XK_MISCELLANY
23  #include <stdio.h>  #include <X11/keysymdef.h>
 #include <stdlib.h>  
 #include <string.h>  
24  #include <ctype.h>  #include <ctype.h>
25  #include <limits.h>  #include <limits.h>
26    #include <time.h>
27  #include "rdesktop.h"  #include "rdesktop.h"
28  #include "scancodes.h"  #include "scancodes.h"
29    
30  #define KEYMAP_SIZE 4096  #define KEYMAP_SIZE 0xffff+1
31  #define KEYMAP_MASK (KEYMAP_SIZE - 1)  #define KEYMAP_MASK 0xffff
32  #define KEYMAP_MAX_LINE_LENGTH 80  #define KEYMAP_MAX_LINE_LENGTH 80
33    
34  extern Display *display;  extern Display *display;
# Line 37  extern char keymapname[16]; Line 36  extern char keymapname[16];
36  extern int keylayout;  extern int keylayout;
37  extern BOOL enable_compose;  extern BOOL enable_compose;
38    
39    static BOOL keymap_loaded;
40  static key_translation keymap[KEYMAP_SIZE];  static key_translation keymap[KEYMAP_SIZE];
41  static int min_keycode;  static int min_keycode;
42  static uint16 remote_modifier_state = 0;  static uint16 remote_modifier_state = 0;
43    
44  static void update_modifier_state(uint16 modifiers, BOOL pressed);  static void update_modifier_state(uint8 scancode, BOOL pressed);
45    
46  static void  static void
47  add_to_keymap(char *keyname, uint8 scancode, uint16 modifiers, char *mapname)  add_to_keymap(char *keyname, uint8 scancode, uint16 modifiers, char *mapname)
# Line 51  add_to_keymap(char *keyname, uint8 scanc Line 51  add_to_keymap(char *keyname, uint8 scanc
51          keysym = XStringToKeysym(keyname);          keysym = XStringToKeysym(keyname);
52          if (keysym == NoSymbol)          if (keysym == NoSymbol)
53          {          {
54                  error("Bad keysym %s in keymap %s\n", keyname, mapname);                  warning("Bad keysym %s in keymap %s\n", keyname, mapname);
55                  return;                  return;
56          }          }
57    
# Line 69  static BOOL Line 69  static BOOL
69  xkeymap_read(char *mapname)  xkeymap_read(char *mapname)
70  {  {
71          FILE *fp;          FILE *fp;
72          char line[KEYMAP_MAX_LINE_LENGTH], path[PATH_MAX];          char line[KEYMAP_MAX_LINE_LENGTH];
73            char path[PATH_MAX], inplace_path[PATH_MAX];
74          unsigned int line_num = 0;          unsigned int line_num = 0;
75          unsigned int line_length = 0;          unsigned int line_length = 0;
76          char *keyname, *p;          char *keyname, *p;
# Line 84  xkeymap_read(char *mapname) Line 85  xkeymap_read(char *mapname)
85          fp = fopen(path, "r");          fp = fopen(path, "r");
86          if (fp == NULL)          if (fp == NULL)
87          {          {
88                  error("Failed to open keymap %s\n", path);                  /* in case we are running from the source tree */
89                  return False;                  strcpy(inplace_path, "keymaps/");
90                    strncat(inplace_path, mapname, sizeof(inplace_path) - sizeof("keymaps/"));
91    
92                    fp = fopen(inplace_path, "r");
93                    if (fp == NULL)
94                    {
95                            error("Failed to open keymap %s\n", path);
96                            return False;
97                    }
98          }          }
99    
100          /* FIXME: More tolerant on white space */          /* FIXME: More tolerant on white space */
# Line 205  void Line 214  void
214  xkeymap_init(void)  xkeymap_init(void)
215  {  {
216          unsigned int max_keycode;          unsigned int max_keycode;
217          int i;          char *mapname_ptr;
218    
219            /* Make keymapname lowercase */
220            mapname_ptr = keymapname;
221            while (*mapname_ptr)
222            {
223                    *mapname_ptr = tolower(*mapname_ptr);
224                    mapname_ptr++;
225            }
226    
227          if (strcmp(keymapname, "none"))          if (strcmp(keymapname, "none"))
228                  xkeymap_read(keymapname);          {
229                    if (xkeymap_read(keymapname))
230                            keymap_loaded = True;
231            }
232    
233          XDisplayKeycodes(display, &min_keycode, (int *) &max_keycode);          XDisplayKeycodes(display, &min_keycode, (int *) &max_keycode);
234  }  }
# Line 216  xkeymap_init(void) Line 236  xkeymap_init(void)
236  /* Handles, for example, multi-scancode keypresses (which is not  /* Handles, for example, multi-scancode keypresses (which is not
237     possible via keymap-files) */     possible via keymap-files) */
238  BOOL  BOOL
239  handle_special_keys(KeySym keysym, uint32 ev_time, BOOL pressed)  handle_special_keys(uint32 keysym, unsigned int state, uint32 ev_time, BOOL pressed)
240  {  {
241          switch (keysym)          switch (keysym)
242          {          {
243                  case XK_Break:  /* toggle full screen */                  case XK_Return:
244                          if (pressed && (get_key_state(XK_Alt_L) || get_key_state(XK_Alt_R)))                          if ((get_key_state(state, XK_Alt_L) || get_key_state(state, XK_Alt_R))
245                                && (get_key_state(state, XK_Control_L)
246                                    || get_key_state(state, XK_Control_R)))
247                          {                          {
248                                  xwin_toggle_fullscreen();                                  /* Ctrl-Alt-Enter: toggle full screen */
249                                    if (pressed)
250                                            xwin_toggle_fullscreen();
251                                  return True;                                  return True;
252                          }                          }
253                          break;                          break;
254    
255                    case XK_Break:
256                            /* Send Break sequence E0 46 E0 C6 */
257                            if (pressed)
258                            {
259                                    rdp_send_scancode(ev_time, RDP_KEYPRESS,
260                                                      (SCANCODE_EXTENDED | 0x46));
261                                    rdp_send_scancode(ev_time, RDP_KEYPRESS,
262                                                      (SCANCODE_EXTENDED | 0xc6));
263                            }
264                            /* No release sequence */
265                            return True;
266    
267                    case XK_Pause:
268                            /* According to MS Keyboard Scan Code
269                               Specification, pressing Pause should result
270                               in E1 1D 45 E1 9D C5. I'm not exactly sure
271                               of how this is supposed to be sent via
272                               RDP. The code below seems to work, but with
273                               the side effect that Left Ctrl stays
274                               down. Therefore, we release it when Pause
275                               is released. */
276                            if (pressed)
277                            {
278                                    rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0);
279                                    rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x1d, 0);
280                                    rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x45, 0);
281                                    rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0);
282                                    rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x9d, 0);
283                                    rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xc5, 0);
284                            }
285                            else
286                            {
287                                    /* Release Left Ctrl */
288                                    rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYRELEASE,
289                                                   0x1d, 0);
290                            }
291                            return True;
292    
293                  case XK_Meta_L: /* Windows keys */                  case XK_Meta_L: /* Windows keys */
294                  case XK_Super_L:                  case XK_Super_L:
295                  case XK_Hyper_L:                  case XK_Hyper_L:
# Line 245  handle_special_keys(KeySym keysym, uint3 Line 307  handle_special_keys(KeySym keysym, uint3
307                                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL);                                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL);
308                          }                          }
309                          return True;                          return True;
                         break;  
310          }          }
311          return False;          return False;
312  }  }
313    
314    
315  key_translation  key_translation
316  xkeymap_translate_key(KeySym keysym, unsigned int keycode, unsigned int state)  xkeymap_translate_key(uint32 keysym, unsigned int keycode, unsigned int state)
317  {  {
318          key_translation tr = { 0, 0 };          key_translation tr = { 0, 0 };
319    
# Line 277  xkeymap_translate_key(KeySym keysym, uns Line 338  xkeymap_translate_key(KeySym keysym, uns
338    
339          if (tr.scancode != 0)          if (tr.scancode != 0)
340          {          {
341                  DEBUG_KBD                  DEBUG_KBD(("Found key translation, scancode=0x%x, modifiers=0x%x\n",
342                          (("Found key translation, scancode=0x%x, modifiers=0x%x\n",                             tr.scancode, tr.modifiers));
                           tr.scancode, tr.modifiers));  
343                  return tr;                  return tr;
344          }          }
345    
346          fprintf(stderr, "No translation for (keysym 0x%lx, %s)\n", keysym, get_ksname(keysym));          if (keymap_loaded)
347                    warning("No translation for (keysym 0x%lx, %s)\n", keysym, get_ksname(keysym));
348    
349          /* not in keymap, try to interpret the raw scancode */          /* not in keymap, try to interpret the raw scancode */
350          if ((keycode >= min_keycode) && (keycode <= 0x60))          if ((keycode >= min_keycode) && (keycode <= 0x60))
# Line 298  xkeymap_translate_key(KeySym keysym, uns Line 359  xkeymap_translate_key(KeySym keysym, uns
359                          tr.modifiers = MapLeftShiftMask;                          tr.modifiers = MapLeftShiftMask;
360                  }                  }
361    
362                  fprintf(stderr, "Sending guessed scancode 0x%x\n", tr.scancode);                  DEBUG_KBD(("Sending guessed scancode 0x%x\n", tr.scancode));
363          }          }
364          else          else
365          {          {
366                  fprintf(stderr, "No good guess for keycode 0x%x found\n", keycode);                  DEBUG_KBD(("No good guess for keycode 0x%x found\n", keycode));
367          }          }
368    
369          return tr;          return tr;
# Line 329  xkeymap_translate_button(unsigned int bu Line 390  xkeymap_translate_button(unsigned int bu
390  }  }
391    
392  char *  char *
393  get_ksname(KeySym keysym)  get_ksname(uint32 keysym)
394  {  {
395          char *ksname = NULL;          char *ksname = NULL;
396    
# Line 362  ensure_remote_modifiers(uint32 ev_time, Line 423  ensure_remote_modifiers(uint32 ev_time,
423                          break;                          break;
424          }          }
425    
426          /* Shift */          /* Shift. Left shift and right shift are treated as equal; either is fine. */
427          if (MASK_HAS_BITS(tr.modifiers, MapShiftMask)          if (MASK_HAS_BITS(tr.modifiers, MapShiftMask)
428              != MASK_HAS_BITS(remote_modifier_state, MapShiftMask))              != MASK_HAS_BITS(remote_modifier_state, MapShiftMask))
429          {          {
430                  /* The remote modifier state is not correct */                  /* The remote modifier state is not correct */
431                  if (MASK_HAS_BITS(tr.modifiers, MapShiftMask))                  if (MASK_HAS_BITS(tr.modifiers, MapLeftShiftMask))
432                  {                  {
433                          /* Needs this modifier. Send down. */                          /* Needs left shift. Send down. */
434                          rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LSHIFT);                          rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LSHIFT);
435                  }                  }
436                    else if (MASK_HAS_BITS(tr.modifiers, MapRightShiftMask))
437                    {
438                            /* Needs right shift. Send down. */
439                            rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RSHIFT);
440                    }
441                  else                  else
442                  {                  {
443                          /* Should not use this modifier. Send up. */                          /* Should not use this modifier. Send up for shift currently pressed. */
444                          rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT);                          if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask))
445                          rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT);                                  /* Left shift is down */
446                                    rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT);
447                            else
448                                    /* Right shift is down */
449                                    rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT);
450                  }                  }
451          }          }
452    
# Line 421  ensure_remote_modifiers(uint32 ev_time, Line 491  ensure_remote_modifiers(uint32 ev_time,
491    
492    
493  void  void
494  reset_modifier_keys()  reset_modifier_keys(unsigned int state)
495  {  {
496          /* reset keys */          /* reset keys */
497          uint32 ev_time;          uint32 ev_time;
498          ev_time = time(NULL);          ev_time = time(NULL);
499    
500          if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask) && !get_key_state(XK_Shift_L))          if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask)
501                && !get_key_state(state, XK_Shift_L))
502                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT);                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT);
503    
504          if (MASK_HAS_BITS(remote_modifier_state, MapRightShiftMask) && !get_key_state(XK_Shift_R))          if (MASK_HAS_BITS(remote_modifier_state, MapRightShiftMask)
505                && !get_key_state(state, XK_Shift_R))
506                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT);                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT);
507    
508          if (MASK_HAS_BITS(remote_modifier_state, MapLeftCtrlMask) && !get_key_state(XK_Control_L))          if (MASK_HAS_BITS(remote_modifier_state, MapLeftCtrlMask)
509                && !get_key_state(state, XK_Control_L))
510                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL);                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL);
511    
512          if (MASK_HAS_BITS(remote_modifier_state, MapRightCtrlMask) && !get_key_state(XK_Control_R))          if (MASK_HAS_BITS(remote_modifier_state, MapRightCtrlMask)
513                && !get_key_state(state, XK_Control_R))
514                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RCTRL);                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RCTRL);
515    
516          if (MASK_HAS_BITS(remote_modifier_state, MapLeftAltMask) && !get_key_state(XK_Alt_L))          if (MASK_HAS_BITS(remote_modifier_state, MapLeftAltMask) && !get_key_state(state, XK_Alt_L))
517                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LALT);                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LALT);
518    
519          if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) &&          if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) &&
520              !get_key_state(XK_Alt_R) && !get_key_state(XK_Mode_switch))              !get_key_state(state, XK_Alt_R) && !get_key_state(state, XK_Mode_switch))
521                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT);                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT);
522  }  }
523    
524    
525  static void  static void
526  update_modifier_state(uint16 modifiers, BOOL pressed)  update_modifier_state(uint8 scancode, BOOL pressed)
527  {  {
528  #ifdef WITH_DEBUG_KBD  #ifdef WITH_DEBUG_KBD
529          uint16 old_modifier_state;          uint16 old_modifier_state;
# Line 457  update_modifier_state(uint16 modifiers, Line 531  update_modifier_state(uint16 modifiers,
531          old_modifier_state = remote_modifier_state;          old_modifier_state = remote_modifier_state;
532  #endif  #endif
533    
534          switch (modifiers)          switch (scancode)
535          {          {
536                  case SCANCODE_CHAR_LSHIFT:                  case SCANCODE_CHAR_LSHIFT:
537                          MASK_CHANGE_BIT(remote_modifier_state, MapLeftShiftMask, pressed);                          MASK_CHANGE_BIT(remote_modifier_state, MapLeftShiftMask, pressed);
# Line 511  update_modifier_state(uint16 modifiers, Line 585  update_modifier_state(uint16 modifiers,
585    
586  /* Send keyboard input */  /* Send keyboard input */
587  void  void
588  rdp_send_scancode(uint32 time, uint16 flags, uint16 scancode)  rdp_send_scancode(uint32 time, uint16 flags, uint8 scancode)
589  {  {
590          update_modifier_state(scancode, !(flags & RDP_KEYRELEASE));          update_modifier_state(scancode, !(flags & RDP_KEYRELEASE));
591    
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