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/* |
/* |
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rdesktop: A Remote Desktop Protocol client. |
rdesktop: A Remote Desktop Protocol client. |
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User interface services - X keyboard mapping |
User interface services - X keyboard mapping |
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Copyright (C) Matthew Chapman 1999-2001 |
Copyright (C) Matthew Chapman 1999-2002 |
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This program is free software; you can redistribute it and/or modify |
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 |
it under the terms of the GNU General Public License as published by |
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*/ |
*/ |
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#include <X11/Xlib.h> |
#include <X11/Xlib.h> |
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#include <X11/keysym.h> |
#define XK_MISCELLANY |
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#include <stdio.h> |
#include <X11/keysymdef.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <ctype.h> |
#include <ctype.h> |
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#include <limits.h> |
#include <limits.h> |
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#include <time.h> |
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#include "rdesktop.h" |
#include "rdesktop.h" |
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#include "scancodes.h" |
#include "scancodes.h" |
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extern int keylayout; |
extern int keylayout; |
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extern BOOL enable_compose; |
extern BOOL enable_compose; |
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static BOOL keymap_loaded; |
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static key_translation keymap[KEYMAP_SIZE]; |
static key_translation keymap[KEYMAP_SIZE]; |
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static int min_keycode; |
static int min_keycode; |
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static uint16 remote_modifier_state = 0; |
static uint16 remote_modifier_state = 0; |
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static void update_modifier_state(uint16 modifiers, BOOL pressed); |
static void update_modifier_state(uint8 scancode, BOOL pressed); |
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static void |
static void |
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add_to_keymap(char *keyname, uint8 scancode, uint16 modifiers, char *mapname) |
add_to_keymap(char *keyname, uint8 scancode, uint16 modifiers, char *mapname) |
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xkeymap_read(char *mapname) |
xkeymap_read(char *mapname) |
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{ |
{ |
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FILE *fp; |
FILE *fp; |
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char line[KEYMAP_MAX_LINE_LENGTH], path[PATH_MAX]; |
char line[KEYMAP_MAX_LINE_LENGTH]; |
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char path[PATH_MAX], inplace_path[PATH_MAX]; |
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unsigned int line_num = 0; |
unsigned int line_num = 0; |
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unsigned int line_length = 0; |
unsigned int line_length = 0; |
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char *keyname, *p; |
char *keyname, *p; |
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fp = fopen(path, "r"); |
fp = fopen(path, "r"); |
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if (fp == NULL) |
if (fp == NULL) |
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{ |
{ |
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error("Failed to open keymap %s\n", path); |
/* in case we are running from the source tree */ |
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return False; |
strcpy(inplace_path, "keymaps/"); |
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strncat(inplace_path, mapname, sizeof(inplace_path) - sizeof("keymaps/")); |
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fp = fopen(inplace_path, "r"); |
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if (fp == NULL) |
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{ |
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error("Failed to open keymap %s\n", path); |
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return False; |
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} |
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} |
} |
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/* FIXME: More tolerant on white space */ |
/* FIXME: More tolerant on white space */ |
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xkeymap_init(void) |
xkeymap_init(void) |
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{ |
{ |
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unsigned int max_keycode; |
unsigned int max_keycode; |
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int i; |
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if (strcmp(keymapname, "none")) |
if (strcmp(keymapname, "none")) |
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xkeymap_read(keymapname); |
{ |
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if (xkeymap_read(keymapname)) |
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keymap_loaded = True; |
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} |
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XDisplayKeycodes(display, &min_keycode, (int *) &max_keycode); |
XDisplayKeycodes(display, &min_keycode, (int *) &max_keycode); |
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} |
} |
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/* Handles, for example, multi-scancode keypresses (which is not |
/* Handles, for example, multi-scancode keypresses (which is not |
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possible via keymap-files) */ |
possible via keymap-files) */ |
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BOOL |
BOOL |
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handle_special_keys(KeySym keysym, uint32 ev_time, BOOL pressed) |
handle_special_keys(uint32 keysym, unsigned int state, uint32 ev_time, BOOL pressed) |
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{ |
{ |
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switch (keysym) |
switch (keysym) |
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{ |
{ |
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case XK_Break: /* toggle full screen */ |
case XK_Break: |
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if (pressed && (get_key_state(XK_Alt_L) || get_key_state(XK_Alt_R))) |
case XK_Pause: |
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if ((get_key_state(state, XK_Alt_L) || get_key_state(state, XK_Alt_R)) |
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&& (get_key_state(state, XK_Control_L) || get_key_state(state, XK_Control_R))) |
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{ |
{ |
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xwin_toggle_fullscreen(); |
/* Ctrl-Alt-Break: toggle full screen */ |
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return True; |
if (pressed) |
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xwin_toggle_fullscreen(); |
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} |
} |
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break; |
else if (keysym == XK_Break) |
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{ |
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/* Send Break sequence E0 46 E0 C6 */ |
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if (pressed) |
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{ |
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rdp_send_scancode(ev_time, RDP_KEYPRESS, |
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(SCANCODE_EXTENDED | 0x46)); |
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rdp_send_scancode(ev_time, RDP_KEYPRESS, |
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(SCANCODE_EXTENDED | 0xc6)); |
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} |
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/* No break sequence */ |
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} |
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else /* XK_Pause */ |
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{ |
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/* According to MS Keyboard Scan Code |
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Specification, pressing Pause should result |
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in E1 1D 45 E1 9D C5. I'm not exactly sure |
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of how this is supposed to be sent via |
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RDP. The code below seems to work, but with |
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the side effect that Left Ctrl stays |
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down. Therefore, we release it when Pause |
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is released. */ |
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if (pressed) |
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{ |
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rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0); |
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rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x1d, 0); |
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rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x45, 0); |
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rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xe1, 0); |
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rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0x9d, 0); |
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rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYPRESS, 0xc5, 0); |
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} |
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else |
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{ |
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/* Release Left Ctrl */ |
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rdp_send_input(ev_time, RDP_INPUT_SCANCODE, RDP_KEYRELEASE, 0x1d, |
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0); |
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} |
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} |
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return True; |
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case XK_Meta_L: /* Windows keys */ |
case XK_Meta_L: /* Windows keys */ |
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case XK_Super_L: |
case XK_Super_L: |
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rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL); |
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL); |
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} |
} |
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return True; |
return True; |
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break; |
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} |
} |
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return False; |
return False; |
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} |
} |
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key_translation |
key_translation |
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xkeymap_translate_key(KeySym keysym, unsigned int keycode, unsigned int state) |
xkeymap_translate_key(uint32 keysym, unsigned int keycode, unsigned int state) |
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{ |
{ |
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key_translation tr = { 0, 0 }; |
key_translation tr = { 0, 0 }; |
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if (tr.scancode != 0) |
if (tr.scancode != 0) |
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{ |
{ |
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DEBUG_KBD |
DEBUG_KBD(("Found key translation, scancode=0x%x, modifiers=0x%x\n", |
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(("Found key translation, scancode=0x%x, modifiers=0x%x\n", |
tr.scancode, tr.modifiers)); |
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tr.scancode, tr.modifiers)); |
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return tr; |
return tr; |
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} |
} |
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fprintf(stderr, "No translation for (keysym 0x%lx, %s)\n", keysym, get_ksname(keysym)); |
if (keymap_loaded) |
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error("No translation for (keysym 0x%lx, %s)\n", keysym, get_ksname(keysym)); |
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/* not in keymap, try to interpret the raw scancode */ |
/* not in keymap, try to interpret the raw scancode */ |
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if ((keycode >= min_keycode) && (keycode <= 0x60)) |
if ((keycode >= min_keycode) && (keycode <= 0x60)) |
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{ |
{ |
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tr.scancode = keycode - min_keycode; |
tr.scancode = keycode - min_keycode; |
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fprintf(stderr, "Sending guessed scancode 0x%x\n", tr.scancode); |
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/* The modifiers to send for this key should be |
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obtained from the local state. Currently, only |
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shift is implemented. */ |
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if (state & ShiftMask) |
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{ |
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tr.modifiers = MapLeftShiftMask; |
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} |
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DEBUG_KBD(("Sending guessed scancode 0x%x\n", tr.scancode)); |
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} |
} |
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else |
else |
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{ |
{ |
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fprintf(stderr, "No good guess for keycode 0x%x found\n", keycode); |
DEBUG_KBD(("No good guess for keycode 0x%x found\n", keycode)); |
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} |
} |
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return tr; |
return tr; |
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} |
} |
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char * |
char * |
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get_ksname(KeySym keysym) |
get_ksname(uint32 keysym) |
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{ |
{ |
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char *ksname = NULL; |
char *ksname = NULL; |
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break; |
break; |
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} |
} |
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/* Shift */ |
/* Shift. Left shift and right shift are treated as equal; either is fine. */ |
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if (MASK_HAS_BITS(tr.modifiers, MapShiftMask) |
if (MASK_HAS_BITS(tr.modifiers, MapShiftMask) |
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!= MASK_HAS_BITS(remote_modifier_state, MapShiftMask)) |
!= MASK_HAS_BITS(remote_modifier_state, MapShiftMask)) |
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{ |
{ |
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/* The remote modifier state is not correct */ |
/* The remote modifier state is not correct */ |
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if (MASK_HAS_BITS(tr.modifiers, MapShiftMask)) |
if (MASK_HAS_BITS(tr.modifiers, MapLeftShiftMask)) |
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{ |
{ |
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/* Needs this modifier. Send down. */ |
/* Needs left shift. Send down. */ |
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rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LSHIFT); |
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LSHIFT); |
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} |
} |
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else if (MASK_HAS_BITS(tr.modifiers, MapRightShiftMask)) |
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{ |
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/* Needs right shift. Send down. */ |
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rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RSHIFT); |
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} |
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else |
else |
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{ |
{ |
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/* Should not use this modifier. Send up. */ |
/* Should not use this modifier. Send up for shift currently pressed. */ |
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rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT); |
if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask)) |
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/* Left shift is down */ |
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rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT); |
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else |
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/* Right shift is down */ |
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rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT); |
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} |
} |
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} |
} |
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} |
} |
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void |
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reset_modifier_keys(unsigned int state) |
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{ |
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/* reset keys */ |
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uint32 ev_time; |
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ev_time = time(NULL); |
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if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask) && !get_key_state(state, XK_Shift_L)) |
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rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT); |
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if (MASK_HAS_BITS(remote_modifier_state, MapRightShiftMask) && !get_key_state(state, XK_Shift_R)) |
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rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT); |
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if (MASK_HAS_BITS(remote_modifier_state, MapLeftCtrlMask) && !get_key_state(state, XK_Control_L)) |
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rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL); |
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if (MASK_HAS_BITS(remote_modifier_state, MapRightCtrlMask) && !get_key_state(state, XK_Control_R)) |
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rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RCTRL); |
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if (MASK_HAS_BITS(remote_modifier_state, MapLeftAltMask) && !get_key_state(state, XK_Alt_L)) |
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rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LALT); |
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if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) && |
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!get_key_state(state, XK_Alt_R) && !get_key_state(state, XK_Mode_switch)) |
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rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT); |
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} |
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static void |
static void |
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update_modifier_state(uint16 modifiers, BOOL pressed) |
update_modifier_state(uint8 scancode, BOOL pressed) |
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{ |
{ |
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#ifdef WITH_DEBUG_KBD |
#ifdef WITH_DEBUG_KBD |
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uint16 old_modifier_state; |
uint16 old_modifier_state; |
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old_modifier_state = remote_modifier_state; |
old_modifier_state = remote_modifier_state; |
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#endif |
#endif |
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switch (modifiers) |
switch (scancode) |
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{ |
{ |
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case SCANCODE_CHAR_LSHIFT: |
case SCANCODE_CHAR_LSHIFT: |
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MASK_CHANGE_BIT(remote_modifier_state, MapLeftShiftMask, pressed); |
MASK_CHANGE_BIT(remote_modifier_state, MapLeftShiftMask, pressed); |
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/* Send keyboard input */ |
/* Send keyboard input */ |
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void |
void |
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rdp_send_scancode(uint32 time, uint16 flags, uint16 scancode) |
rdp_send_scancode(uint32 time, uint16 flags, uint8 scancode) |
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{ |
{ |
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update_modifier_state(scancode, !(flags & RDP_KEYRELEASE)); |
update_modifier_state(scancode, !(flags & RDP_KEYRELEASE)); |
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