/* Send keyboard input */
void
rdp_send_scancode(uint32 time, uint16 flags, uint8 scancode)
{
update_modifier_state(scancode, !(flags & RDP_KEYRELEASE));
if (scancode & SCANCODE_EXTENDED)
{
DEBUG_KBD(("Sending extended scancode=0x%x, flags=0x%x\n",
scancode & ~SCANCODE_EXTENDED, flags));
rdp_send_input(time, RDP_INPUT_SCANCODE, flags | KBD_FLAG_EXT,
scancode & ~SCANCODE_EXTENDED, 0);
}
else
{
DEBUG_KBD(("Sending scancode=0x%x, flags=0x%x\n", scancode, flags));
rdp_send_input(time, RDP_INPUT_SCANCODE, flags, scancode, 0);
}
}
void
ensure_remote_modifiers(uint32 ev_time, key_translation tr)
{
/* If this key is a modifier, do nothing */
switch (tr.scancode)
{
case SCANCODE_CHAR_LSHIFT:
case SCANCODE_CHAR_RSHIFT:
case SCANCODE_CHAR_LCTRL:
case SCANCODE_CHAR_RCTRL:
case SCANCODE_CHAR_LALT:
case SCANCODE_CHAR_RALT:
case SCANCODE_CHAR_LWIN:
case SCANCODE_CHAR_RWIN:
case SCANCODE_CHAR_NUMLOCK:
return;
default:
break;
}
/* 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);
}
}
/* 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 = 0;
if (MASK_HAS_BITS(tr.modifiers, MapNumLockMask))
{
DEBUG_KBD(("Remote NumLock state is incorrect, activating NumLock.\n"));
new_remote_state |= KBD_FLAG_NUMLOCK;
}
else
{
DEBUG_KBD(("Remote NumLock state is incorrect, deactivating NumLock.\n"));
}
rdp_send_input(0, RDP_INPUT_SYNCHRONIZE, 0, new_remote_state, 0);
update_modifier_state(SCANCODE_CHAR_NUMLOCK, True);
}
}
