1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
# ========================================================================== #
# #
# KVMD - The main PiKVM daemon. #
# #
# Copyright (C) 2018-2022 Maxim Devaev <[email protected]> #
# #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
# #
# ========================================================================== #
from .... import aiomulti
from ....keyboard.mappings import KEYMAP
# =====
class Keyboard:
def __init__(self) -> None:
self.__leds = aiomulti.AioSharedFlags({
"num": False,
"caps": False,
"scroll": False,
}, aiomulti.AioProcessNotifier(), bool)
self.__modifiers = 0
self.__active_keys: list[int] = []
def set_leds(self, led_byte: int) -> None:
self.__leds.update(
num=bool(led_byte & 1),
caps=bool((led_byte >> 1) & 1),
scroll=bool((led_byte >> 2) & 1),
)
async def get_leds(self) -> dict[str, bool]:
return (await self.__leds.get())
def process_key(self, key: str, state: bool) -> bytes:
code = KEYMAP[key].usb.code
is_modifier = KEYMAP[key].usb.is_modifier
if state:
if is_modifier:
self.__modifiers |= code
elif len(self.__active_keys) < 6 and code not in self.__active_keys:
self.__active_keys.append(code)
else:
if is_modifier:
self.__modifiers &= ~code
elif code in self.__active_keys:
self.__active_keys.remove(code)
cmd = [
0, 0x02, 0x08, self.__modifiers, 0,
0, 0, 0, 0, 0, 0,
]
for (index, code) in enumerate(self.__active_keys):
cmd[index + 5] = code
return bytes(cmd)
|
