/[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 333 by astrand, Thu Feb 20 12:14:13 2003 UTC revision 548 by astrand, Tue Nov 11 14:01:31 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    
5     Copyright (C) Matthew Chapman 1999-2002     Copyright (C) Matthew Chapman 1999-2002
6       Copyright (C) Peter Astrand <peter@cendio.se> 2003
7        
8     This program is free software; you can redistribute it and/or modify     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     it under the terms of the GNU General Public License as published by
# Line 12  Line 14 
14     but WITHOUT ANY WARRANTY; without even the implied warranty of     but WITHOUT ANY WARRANTY; without even the implied warranty of
15     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16     GNU General Public License for more details.     GNU General Public License for more details.
17      
18     You should have received a copy of the GNU General Public License     You should have received a copy of the GNU General Public License
19     along with this program; if not, write to the Free Software     along with this program; if not, write to the Free Software
20     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
# Line 35  Line 37 
37  #define KEYMAP_MASK 0xffff  #define KEYMAP_MASK 0xffff
38  #define KEYMAP_MAX_LINE_LENGTH 80  #define KEYMAP_MAX_LINE_LENGTH 80
39    
40  extern Display *display;  extern Display *g_display;
41    extern Window g_wnd;
42  extern char keymapname[16];  extern char keymapname[16];
43  extern int keylayout;  extern int keylayout;
44  extern int win_button_size;  extern int g_win_button_size;
45  extern BOOL enable_compose;  extern BOOL g_enable_compose;
46    extern BOOL g_use_rdp5;
47    
48  static BOOL keymap_loaded;  static BOOL keymap_loaded;
49  static key_translation keymap[KEYMAP_SIZE];  static key_translation keymap[KEYMAP_SIZE];
50  static int min_keycode;  static int min_keycode;
51  static uint16 remote_modifier_state = 0;  static uint16 remote_modifier_state = 0;
52    static uint16 saved_remote_modifier_state = 0;
53    
54  static void update_modifier_state(uint8 scancode, BOOL pressed);  static void update_modifier_state(uint8 scancode, BOOL pressed);
55    
# Line 140  xkeymap_read(char *mapname) Line 145  xkeymap_read(char *mapname)
145                  if (strncmp(line, "enable_compose", 15) == 0)                  if (strncmp(line, "enable_compose", 15) == 0)
146                  {                  {
147                          DEBUG_KBD(("Enabling compose handling\n"));                          DEBUG_KBD(("Enabling compose handling\n"));
148                          enable_compose = True;                          g_enable_compose = True;
149                          continue;                          continue;
150                  }                  }
151    
# Line 181  xkeymap_read(char *mapname) Line 186  xkeymap_read(char *mapname)
186                          MASK_ADD_BITS(modifiers, MapLeftShiftMask);                          MASK_ADD_BITS(modifiers, MapLeftShiftMask);
187                  }                  }
188    
                 if (strstr(line_rest, "numlock"))  
                 {  
                         MASK_ADD_BITS(modifiers, MapNumLockMask);  
                 }  
   
189                  if (strstr(line_rest, "localstate"))                  if (strstr(line_rest, "localstate"))
190                  {                  {
191                          MASK_ADD_BITS(modifiers, MapLocalStateMask);                          MASK_ADD_BITS(modifiers, MapLocalStateMask);
# Line 235  xkeymap_init(void) Line 235  xkeymap_init(void)
235                          keymap_loaded = True;                          keymap_loaded = True;
236          }          }
237    
238          XDisplayKeycodes(display, &min_keycode, (int *) &max_keycode);          XDisplayKeycodes(g_display, &min_keycode, (int *) &max_keycode);
239    }
240    
241    static void
242    send_winkey(uint32 ev_time, BOOL pressed, BOOL leftkey)
243    {
244            uint8 winkey;
245    
246            if (leftkey)
247                    winkey = SCANCODE_CHAR_LWIN;
248            else
249                    winkey = SCANCODE_CHAR_RWIN;
250    
251            if (pressed)
252            {
253                    if (g_use_rdp5)
254                    {
255                            rdp_send_scancode(ev_time, RDP_KEYPRESS, winkey);
256                    }
257                    else
258                    {
259                            /* RDP4 doesn't support winkey. Fake with Ctrl-Esc */
260                            rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LCTRL);
261                            rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_ESC);
262                    }
263            }
264            else
265            {
266                    /* key released */
267                    if (g_use_rdp5)
268                    {
269                            rdp_send_scancode(ev_time, RDP_KEYRELEASE, winkey);
270                    }
271                    else
272                    {
273                            rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_ESC);
274                            rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL);
275                    }
276            }
277    }
278    
279    static void
280    reset_winkey(uint32 ev_time)
281    {
282            if (g_use_rdp5)
283            {
284                    /* For some reason, it seems to suffice to release
285                     *either* the left or right winkey. */
286                    rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LWIN);
287            }
288  }  }
289    
290  /* Handles, for example, multi-scancode keypresses (which is not  /* Handles, for example, multi-scancode keypresses (which is not
# Line 298  handle_special_keys(uint32 keysym, unsig Line 347  handle_special_keys(uint32 keysym, unsig
347                  case XK_Meta_L: /* Windows keys */                  case XK_Meta_L: /* Windows keys */
348                  case XK_Super_L:                  case XK_Super_L:
349                  case XK_Hyper_L:                  case XK_Hyper_L:
350                            send_winkey(ev_time, pressed, True);
351                            return True;
352    
353                  case XK_Meta_R:                  case XK_Meta_R:
354                  case XK_Super_R:                  case XK_Super_R:
355                  case XK_Hyper_R:                  case XK_Hyper_R:
356                          if (pressed)                          send_winkey(ev_time, pressed, False);
                         {  
                                 rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LCTRL);  
                                 rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_ESC);  
                         }  
                         else  
                         {  
                                 rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_ESC);  
                                 rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL);  
                         }  
357                          return True;                          return True;
358    
359                  case XK_space:                  case XK_space:
360                          /* Prevent access to the Windows system menu in single app mode */                          /* Prevent access to the Windows system menu in single app mode */
361                          if (win_button_size                          if (g_win_button_size
362                              && (get_key_state(state, XK_Alt_L) || get_key_state(state, XK_Alt_R)))                              && (get_key_state(state, XK_Alt_L) || get_key_state(state, XK_Alt_R)))
363                                  return True;                                  return True;
364    
# Line 359  xkeymap_translate_key(uint32 keysym, uns Line 402  xkeymap_translate_key(uint32 keysym, uns
402                  warning("No translation for (keysym 0x%lx, %s)\n", keysym, get_ksname(keysym));                  warning("No translation for (keysym 0x%lx, %s)\n", keysym, get_ksname(keysym));
403    
404          /* not in keymap, try to interpret the raw scancode */          /* not in keymap, try to interpret the raw scancode */
405          if ((keycode >= min_keycode) && (keycode <= 0x60))          if (((int) keycode >= min_keycode) && (keycode <= 0x60))
406          {          {
407                  tr.scancode = keycode - min_keycode;                  tr.scancode = keycode - min_keycode;
408    
# Line 414  get_ksname(uint32 keysym) Line 457  get_ksname(uint32 keysym)
457          return ksname;          return ksname;
458  }  }
459    
460    static BOOL
461  void  is_modifier(uint8 scancode)
 ensure_remote_modifiers(uint32 ev_time, key_translation tr)  
462  {  {
463          /* If this key is a modifier, do nothing */          switch (scancode)
         switch (tr.scancode)  
464          {          {
465                  case SCANCODE_CHAR_LSHIFT:                  case SCANCODE_CHAR_LSHIFT:
466                  case SCANCODE_CHAR_RSHIFT:                  case SCANCODE_CHAR_RSHIFT:
# Line 430  ensure_remote_modifiers(uint32 ev_time, Line 471  ensure_remote_modifiers(uint32 ev_time,
471                  case SCANCODE_CHAR_LWIN:                  case SCANCODE_CHAR_LWIN:
472                  case SCANCODE_CHAR_RWIN:                  case SCANCODE_CHAR_RWIN:
473                  case SCANCODE_CHAR_NUMLOCK:                  case SCANCODE_CHAR_NUMLOCK:
474                          return;                          return True;
475                  default:                  default:
476                          break;                          break;
477          }          }
478            return False;
479    }
480    
481          /* NumLock */  void
482          if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask)  save_remote_modifiers(uint8 scancode)
483              != MASK_HAS_BITS(remote_modifier_state, MapNumLockMask))  {
484          {          if (is_modifier(scancode))
485                  /* The remote modifier state is not correct */                  return;
                 uint16 new_remote_state;  
486    
487                  if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask))          saved_remote_modifier_state = remote_modifier_state;
488                  {  }
                         DEBUG_KBD(("Remote NumLock state is incorrect, activating NumLock.\n"));  
                         new_remote_state = KBD_FLAG_NUMLOCK;  
                         remote_modifier_state = MapNumLockMask;  
                 }  
                 else  
                 {  
                         DEBUG_KBD(("Remote NumLock state is incorrect, deactivating NumLock.\n"));  
                         new_remote_state = 0;  
                         remote_modifier_state = 0;  
                 }  
489    
490                  rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, new_remote_state, 0);  void
491          }  restore_remote_modifiers(uint32 ev_time, uint8 scancode)
492    {
493            key_translation dummy;
494    
495            if (is_modifier(scancode))
496                    return;
497    
498            dummy.scancode = 0;
499            dummy.modifiers = saved_remote_modifier_state;
500            ensure_remote_modifiers(ev_time, dummy);
501    }
502    
503    void
504    ensure_remote_modifiers(uint32 ev_time, key_translation tr)
505    {
506            /* If this key is a modifier, do nothing */
507            if (is_modifier(tr.scancode))
508                    return;
509    
510          /* Shift. Left shift and right shift are treated as equal; either is fine. */          /* Shift. Left shift and right shift are treated as equal; either is fine. */
511          if (MASK_HAS_BITS(tr.modifiers, MapShiftMask)          if (MASK_HAS_BITS(tr.modifiers, MapShiftMask)
# Line 506  ensure_remote_modifiers(uint32 ev_time, Line 555  ensure_remote_modifiers(uint32 ev_time,
555  }  }
556    
557    
558    unsigned int
559    read_keyboard_state()
560    {
561            unsigned int state;
562            Window wdummy;
563            int dummy;
564    
565            XQueryPointer(g_display, g_wnd, &wdummy, &wdummy, &dummy, &dummy, &dummy, &dummy, &state);
566            return state;
567    }
568    
569    
570    uint16
571    ui_get_numlock_state(unsigned int state)
572    {
573            uint16 numlock_state = 0;
574    
575            if (get_key_state(state, XK_Num_Lock))
576                    numlock_state = KBD_FLAG_NUMLOCK;
577    
578            return numlock_state;
579    }
580    
581    
582  void  void
583  reset_modifier_keys(unsigned int state)  reset_modifier_keys()
584  {  {
585            unsigned int state = read_keyboard_state();
586    
587          /* reset keys */          /* reset keys */
588          uint32 ev_time;          uint32 ev_time;
589          ev_time = time(NULL);          ev_time = time(NULL);
# Line 535  reset_modifier_keys(unsigned int state) Line 610  reset_modifier_keys(unsigned int state)
610          if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) &&          if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) &&
611              !get_key_state(state, XK_Alt_R) && !get_key_state(state, XK_Mode_switch))              !get_key_state(state, XK_Alt_R) && !get_key_state(state, XK_Mode_switch))
612                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT);                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT);
613    
614            reset_winkey(ev_time);
615    
616            rdp_send_input(ev_time, RDP_INPUT_SYNCHRONIZE, 0, ui_get_numlock_state(state), 0);
617  }  }
618    
619    
# Line 573  update_modifier_state(uint8 scancode, BO Line 652  update_modifier_state(uint8 scancode, BO
652                  case SCANCODE_CHAR_RWIN:                  case SCANCODE_CHAR_RWIN:
653                          MASK_CHANGE_BIT(remote_modifier_state, MapRightWinMask, pressed);                          MASK_CHANGE_BIT(remote_modifier_state, MapRightWinMask, pressed);
654                          break;                          break;
                 case SCANCODE_CHAR_NUMLOCK:  
                         /* KeyReleases for NumLocks are sent immediately. Toggle the  
                            modifier state only on Keypress */  
                         if (pressed)  
                         {  
                                 BOOL newNumLockState;  
                                 newNumLockState =  
                                         (MASK_HAS_BITS  
                                          (remote_modifier_state, MapNumLockMask) == False);  
                                 MASK_CHANGE_BIT(remote_modifier_state,  
                                                 MapNumLockMask, newNumLockState);  
                         }  
                         break;  
655          }          }
656    
657  #ifdef WITH_DEBUG_KBD  #ifdef WITH_DEBUG_KBD
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