static void
update_modifier_state(uint8 scancode, BOOL pressed)
{
#ifdef WITH_DEBUG_KBD
uint16 old_modifier_state;
old_modifier_state = remote_modifier_state;
#endif
switch (scancode)
{
case SCANCODE_CHAR_LSHIFT:
MASK_CHANGE_BIT(remote_modifier_state, MapLeftShiftMask, pressed);
break;
case SCANCODE_CHAR_RSHIFT:
MASK_CHANGE_BIT(remote_modifier_state, MapRightShiftMask, pressed);
break;
case SCANCODE_CHAR_LCTRL:
MASK_CHANGE_BIT(remote_modifier_state, MapLeftCtrlMask, pressed);
break;
case SCANCODE_CHAR_RCTRL:
MASK_CHANGE_BIT(remote_modifier_state, MapRightCtrlMask, pressed);
break;
case SCANCODE_CHAR_LALT:
MASK_CHANGE_BIT(remote_modifier_state, MapLeftAltMask, pressed);
break;
case SCANCODE_CHAR_RALT:
MASK_CHANGE_BIT(remote_modifier_state, MapRightAltMask, pressed);
break;
case SCANCODE_CHAR_LWIN:
MASK_CHANGE_BIT(remote_modifier_state, MapLeftWinMask, pressed);
break;
case SCANCODE_CHAR_RWIN:
MASK_CHANGE_BIT(remote_modifier_state, MapRightWinMask, pressed);
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;
}
#ifdef WITH_DEBUG_KBD
if (old_modifier_state != remote_modifier_state)
{
DEBUG_KBD(("Before updating modifier_state:0x%x, pressed=0x%x\n",
old_modifier_state, pressed));
DEBUG_KBD(("After updating modifier_state:0x%x\n", remote_modifier_state));
}
#endif
}
void
reset_modifier_keys(unsigned int state)
{
/* reset keys */
uint32 ev_time;
ev_time = time(NULL);
if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask)
&& !get_key_state(state, XK_Shift_L))
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT);
if (MASK_HAS_BITS(remote_modifier_state, MapRightShiftMask)
&& !get_key_state(state, XK_Shift_R))
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT);
if (MASK_HAS_BITS(remote_modifier_state, MapLeftCtrlMask)
&& !get_key_state(state, XK_Control_L))
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL);
if (MASK_HAS_BITS(remote_modifier_state, MapRightCtrlMask)
&& !get_key_state(state, XK_Control_R))
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RCTRL);
if (MASK_HAS_BITS(remote_modifier_state, MapLeftAltMask) && !get_key_state(state, XK_Alt_L))
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LALT);
if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) &&
!get_key_state(state, XK_Alt_R) && !get_key_state(state, XK_Mode_switch))
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT);
}
void
reset_modifier_keys()
{
unsigned int state = read_keyboard_state();
/* reset keys */
uint32 ev_time;
ev_time = time(NULL);
printf("remote_modifier_state: %.8X\n", remote_modifier_state);
if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask)
&& !get_key_state(state, XK_Shift_L))
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT);
if (MASK_HAS_BITS(remote_modifier_state, MapRightShiftMask)
&& !get_key_state(state, XK_Shift_R))
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT);
if (MASK_HAS_BITS(remote_modifier_state, MapLeftCtrlMask)
&& !get_key_state(state, XK_Control_L))
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LCTRL);
if (MASK_HAS_BITS(remote_modifier_state, MapRightCtrlMask)
&& !get_key_state(state, XK_Control_R))
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RCTRL);
if (MASK_HAS_BITS(remote_modifier_state, MapLeftAltMask) && !get_key_state(state, XK_Alt_L))
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LALT);
if (MASK_HAS_BITS(remote_modifier_state, MapRightAltMask) &&
!get_key_state(state, XK_Alt_R) && !get_key_state(state, XK_Mode_switch)
&& !get_key_state(state, XK_ISO_Level3_Shift))
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT);
reset_winkey(ev_time);
if (g_numlock_sync)
rdp_send_input(ev_time, RDP_INPUT_SYNCHRONIZE, 0, ui_get_numlock_state(state), 0);
}
void
ensure_remote_modifiers(uint32 ev_time, key_translation tr)
{
/* If this key is a modifier, do nothing */
if (is_modifier(tr.scancode))
return;
if (!g_numlock_sync)
{
/* NumLock */
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask)
!= MASK_HAS_BITS(remote_modifier_state, MapNumLockMask))
{
/* The remote modifier state is not correct */
uint16 new_remote_state;
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask))
{
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;
}
rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, new_remote_state, 0);
}
}
/* Shift. Left shift and right shift are treated as equal; either is fine. */
if (MASK_HAS_BITS(tr.modifiers, MapShiftMask)
!= MASK_HAS_BITS(remote_modifier_state, MapShiftMask))
{
/* The remote modifier state is not correct */
if (MASK_HAS_BITS(tr.modifiers, MapLeftShiftMask))
{
/* Needs left shift. Send down. */
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_LSHIFT);
}
else if (MASK_HAS_BITS(tr.modifiers, MapRightShiftMask))
{
/* Needs right shift. Send down. */
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RSHIFT);
}
else
{
/* Should not use this modifier. Send up for shift currently pressed. */
if (MASK_HAS_BITS(remote_modifier_state, MapLeftShiftMask))
/* Left shift is down */
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_LSHIFT);
else
/* Right shift is down */
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RSHIFT);
}
}
/* AltGr */
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask)
!= MASK_HAS_BITS(remote_modifier_state, MapAltGrMask))
{
/* The remote modifier state is not correct */
if (MASK_HAS_BITS(tr.modifiers, MapAltGrMask))
{
/* Needs this modifier. Send down. */
rdp_send_scancode(ev_time, RDP_KEYPRESS, SCANCODE_CHAR_RALT);
}
else
{
/* Should not use this modifier. Send up. */
rdp_send_scancode(ev_time, RDP_KEYRELEASE, SCANCODE_CHAR_RALT);
}
}
}
key_translation
xkeymap_translate_key(uint32 keysym, unsigned int keycode, unsigned int state)
{
key_translation tr = { 0, 0, 0, 0 };
key_translation *ptr;
ptr = keymap[keysym & KEYMAP_MASK];
if (ptr)
{
tr = *ptr;
if (tr.seq_keysym == 0) /* Normal scancode translation */
{
if (MASK_HAS_BITS(tr.modifiers, MapInhibitMask))
{
DEBUG_KBD(("Inhibiting key\n"));
tr.scancode = 0;
return tr;
}
if (MASK_HAS_BITS(tr.modifiers, MapLocalStateMask))
{
/* The modifiers to send for this key should be obtained
from the local state. Currently, only shift is implemented. */
if (MASK_HAS_BITS(state, ShiftMask))
{
tr.modifiers = MapLeftShiftMask;
}
}
/* Windows interprets CapsLock+Ctrl+key
differently from Shift+Ctrl+key. Since we
are simulating CapsLock with Shifts, things
like Ctrl+f with CapsLock on breaks. To
solve this, we are releasing Shift if Ctrl
is on, but only if Shift isn't physically pressed. */
if (MASK_HAS_BITS(tr.modifiers, MapShiftMask)
&& MASK_HAS_BITS(remote_modifier_state, MapCtrlMask)
&& !MASK_HAS_BITS(state, ShiftMask))
{
DEBUG_KBD(("Non-physical Shift + Ctrl pressed, releasing Shift\n"));
MASK_REMOVE_BITS(tr.modifiers, MapShiftMask);
}
DEBUG_KBD(("Found scancode translation, scancode=0x%x, modifiers=0x%x\n",
tr.scancode, tr.modifiers));
}
}
else
{
if (keymap_loaded)
warning("No translation for (keysym 0x%lx, %s)\n", keysym,
get_ksname(keysym));
/* not in keymap, try to interpret the raw scancode */
if (((int) keycode >= min_keycode) && (keycode <= 0x60))
{
tr.scancode = keycode - min_keycode;
/* The modifiers to send for this key should be
obtained from the local state. Currently, only
shift is implemented. */
if (MASK_HAS_BITS(state, ShiftMask))
{
tr.modifiers = MapLeftShiftMask;
}
DEBUG_KBD(("Sending guessed scancode 0x%x\n", tr.scancode));
}
else
{
DEBUG_KBD(("No good guess for keycode 0x%x found\n", keycode));
}
}
return tr;
}
