/[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 207 by matthewc, Thu Sep 26 14:26:46 2002 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    
# 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 205  void Line 205  void
205  xkeymap_init(void)  xkeymap_init(void)
206  {  {
207          unsigned int max_keycode;          unsigned int max_keycode;
         int i;  
208    
209          if (strcmp(keymapname, "none"))          if (strcmp(keymapname, "none"))
210                  xkeymap_read(keymapname);          {
211                    if (xkeymap_read(keymapname))
212                            keymap_loaded = True;
213            }
214    
215          XDisplayKeycodes(display, &min_keycode, (int *) &max_keycode);          XDisplayKeycodes(display, &min_keycode, (int *) &max_keycode);
216  }  }
# Line 216  xkeymap_init(void) Line 218  xkeymap_init(void)
218  /* Handles, for example, multi-scancode keypresses (which is not  /* Handles, for example, multi-scancode keypresses (which is not
219     possible via keymap-files) */     possible via keymap-files) */
220  BOOL  BOOL
221  handle_special_keys(KeySym keysym, uint32 ev_time, BOOL pressed)  handle_special_keys(uint32 keysym, unsigned int state, uint32 ev_time, BOOL pressed)
222  {  {
223          switch (keysym)          switch (keysym)
224          {          {
225                  case XK_Break:  /* toggle full screen */                  case XK_Break:
226                          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))
227                            {
228                                    /* toggle full screen */
229                                    if (pressed)
230                                            xwin_toggle_fullscreen();
231    
232                            }
233                            else
234                          {                          {
235                                  xwin_toggle_fullscreen();                                  /* Send Break sequence E0 46 E0 C6 */
236                                  return True;                                  if (pressed)
237                                    {
238                                            rdp_send_scancode(ev_time, RDP_KEYPRESS,
239                                                              (SCANCODE_EXTENDED | 0x46));
240                                            rdp_send_scancode(ev_time, RDP_KEYPRESS,
241                                                              (SCANCODE_EXTENDED | 0xc6));
242                                    }
243                                    /* No break sequence */
244                          }                          }
245    
246                            return True;
247                            break;
248    
249                    case XK_Pause:
250                            /* According to MS Keyboard Scan Code
251                               Specification, pressing Pause should result
252                               in E1 1D 45 E1 9D C5. I'm not exactly sure
253                               of how this is supposed to be sent via
254                               RDP. The code below seems to work, but with
255                               the side effect that Left Ctrl stays
256                               down. Therefore, we release it when Pause
257                               is released. */
258                            if (pressed)
259                            {
260                                    rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0);
261                                    rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x1d, 0);
262                                    rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x45, 0);
263                                    rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0);
264                                    rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x9d, 0);
265                                    rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xc5, 0);
266                            }
267                            else
268                            {
269                                    /* Release Left Ctrl */
270                                    rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYRELEASE, 0x1d,
271                                                   0);
272                            }
273    
274                            return True;
275                          break;                          break;
276    
277                  case XK_Meta_L: /* Windows keys */                  case XK_Meta_L: /* Windows keys */
# Line 252  handle_special_keys(KeySym keysym, uint3 Line 298  handle_special_keys(KeySym keysym, uint3
298    
299    
300  key_translation  key_translation
301  xkeymap_translate_key(KeySym keysym, unsigned int keycode, unsigned int state)  xkeymap_translate_key(uint32 keysym, unsigned int keycode, unsigned int state)
302  {  {
303          key_translation tr = { 0, 0 };          key_translation tr = { 0, 0 };
304    
# Line 277  xkeymap_translate_key(KeySym keysym, uns Line 323  xkeymap_translate_key(KeySym keysym, uns
323    
324          if (tr.scancode != 0)          if (tr.scancode != 0)
325          {          {
326                  DEBUG_KBD                  DEBUG_KBD(("Found key translation, scancode=0x%x, modifiers=0x%x\n",
327                          (("Found key translation, scancode=0x%x, modifiers=0x%x\n",                             tr.scancode, tr.modifiers));
                           tr.scancode, tr.modifiers));  
328                  return tr;                  return tr;
329          }          }
330    
331          fprintf(stderr, "No translation for (keysym 0x%lx, %s)\n", keysym, get_ksname(keysym));          if (keymap_loaded)
332                    error("No translation for (keysym 0x%lx, %s)\n", keysym, get_ksname(keysym));
333    
334          /* not in keymap, try to interpret the raw scancode */          /* not in keymap, try to interpret the raw scancode */
335          if ((keycode >= min_keycode) && (keycode <= 0x60))          if ((keycode >= min_keycode) && (keycode <= 0x60))
# Line 298  xkeymap_translate_key(KeySym keysym, uns Line 344  xkeymap_translate_key(KeySym keysym, uns
344                          tr.modifiers = MapLeftShiftMask;                          tr.modifiers = MapLeftShiftMask;
345                  }                  }
346    
347                  fprintf(stderr, "Sending guessed scancode 0x%x\n", tr.scancode);                  DEBUG_KBD(("Sending guessed scancode 0x%x\n", tr.scancode));
348          }          }
349          else          else
350          {          {
351                  fprintf(stderr, "No good guess for keycode 0x%x found\n", keycode);                  DEBUG_KBD(("No good guess for keycode 0x%x found\n", keycode));
352          }          }
353    
354          return tr;          return tr;
# Line 329  xkeymap_translate_button(unsigned int bu Line 375  xkeymap_translate_button(unsigned int bu
375  }  }
376    
377  char *  char *
378  get_ksname(KeySym keysym)  get_ksname(uint32 keysym)
379  {  {
380          char *ksname = NULL;          char *ksname = NULL;
381    
# Line 362  ensure_remote_modifiers(uint32 ev_time, Line 408  ensure_remote_modifiers(uint32 ev_time,
408                          break;                          break;
409          }          }
410    
411          /* Shift */          /* Shift. Left shift and right shift are treated as equal; either is fine. */
412          if (MASK_HAS_BITS(tr.modifiers, MapShiftMask)          if (MASK_HAS_BITS(tr.modifiers, MapShiftMask)
413              != MASK_HAS_BITS(remote_modifier_state, MapShiftMask))              != MASK_HAS_BITS(remote_modifier_state, MapShiftMask))
414          {          {
415                  /* The remote modifier state is not correct */                  /* The remote modifier state is not correct */
416                  if (MASK_HAS_BITS(tr.modifiers, MapShiftMask))                  if (MASK_HAS_BITS(tr.modifiers, MapLeftShiftMask))
417                  {                  {
418                          /* Needs this modifier. Send down. */                          /* Needs left shift. Send down. */
419                          rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LSHIFT);                          rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LSHIFT);
420                  }                  }
421                    else if (MASK_HAS_BITS(tr.modifiers, MapRightShiftMask))
422                    {
423                            /* Needs right shift. Send down. */
424                            rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RSHIFT);
425                    }
426                  else                  else
427                  {                  {
428                          /* Should not use this modifier. Send up. */                          /* Should not use this modifier. Send up for shift currently pressed. */
429                          rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT);                          if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask))
430                          rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT);                                  /* Left shift is down */
431                                    rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT);
432                            else
433                                    /* Right shift is down */
434                                    rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT);
435                  }                  }
436          }          }
437    
# Line 421  ensure_remote_modifiers(uint32 ev_time, Line 476  ensure_remote_modifiers(uint32 ev_time,
476    
477    
478  void  void
479  reset_modifier_keys()  reset_modifier_keys(unsigned int state)
480  {  {
481          /* reset keys */          /* reset keys */
482          uint32 ev_time;          uint32 ev_time;
483          ev_time = time(NULL);          ev_time = time(NULL);
484    
485          if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask) && !get_key_state(XK_Shift_L))          if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask) && !get_key_state(state, XK_Shift_L))
486                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT);                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT);
487    
488          if (MASK_HAS_BITS(remote_modifier_state, MapRightShiftMask) && !get_key_state(XK_Shift_R))          if (MASK_HAS_BITS(remote_modifier_state, MapRightShiftMask) && !get_key_state(state, XK_Shift_R))
489                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT);                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT);
490    
491          if (MASK_HAS_BITS(remote_modifier_state, MapLeftCtrlMask) && !get_key_state(XK_Control_L))          if (MASK_HAS_BITS(remote_modifier_state, MapLeftCtrlMask) && !get_key_state(state, XK_Control_L))
492                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL);                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL);
493    
494          if (MASK_HAS_BITS(remote_modifier_state, MapRightCtrlMask) && !get_key_state(XK_Control_R))          if (MASK_HAS_BITS(remote_modifier_state, MapRightCtrlMask) && !get_key_state(state, XK_Control_R))
495                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RCTRL);                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RCTRL);
496    
497          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))
498                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LALT);                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LALT);
499    
500          if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) &&          if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) &&
501              !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))
502                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT);                  rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT);
503  }  }
504    
505    
506  static void  static void
507  update_modifier_state(uint16 modifiers, BOOL pressed)  update_modifier_state(uint8 scancode, BOOL pressed)
508  {  {
509  #ifdef WITH_DEBUG_KBD  #ifdef WITH_DEBUG_KBD
510          uint16 old_modifier_state;          uint16 old_modifier_state;
# Line 457  update_modifier_state(uint16 modifiers, Line 512  update_modifier_state(uint16 modifiers,
512          old_modifier_state = remote_modifier_state;          old_modifier_state = remote_modifier_state;
513  #endif  #endif
514    
515          switch (modifiers)          switch (scancode)
516          {          {
517                  case SCANCODE_CHAR_LSHIFT:                  case SCANCODE_CHAR_LSHIFT:
518                          MASK_CHANGE_BIT(remote_modifier_state, MapLeftShiftMask, pressed);                          MASK_CHANGE_BIT(remote_modifier_state, MapLeftShiftMask, pressed);
# Line 511  update_modifier_state(uint16 modifiers, Line 566  update_modifier_state(uint16 modifiers,
566    
567  /* Send keyboard input */  /* Send keyboard input */
568  void  void
569  rdp_send_scancode(uint32 time, uint16 flags, uint16 scancode)  rdp_send_scancode(uint32 time, uint16 flags, uint8 scancode)
570  {  {
571          update_modifier_state(scancode, !(flags & RDP_KEYRELEASE));          update_modifier_state(scancode, !(flags & RDP_KEYRELEASE));
572    
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