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# ========================================================================== #
# #
# 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.__notifier = aiomulti.AioProcessNotifier()
self.__leds = aiomulti.AioSharedFlags({
"num": False,
"caps": False,
"scroll": False,
}, self.__notifier, type=bool)
self.__active_keys: list[list] = []
def key(self, key: str, state: bool) -> list[int]:
if state:
self.__active_keys.append([key, self.__is_modifier(key)])
else:
self.__active_keys.remove([key, self.__is_modifier(key)])
return self.__key()
async def leds(self) -> dict:
leds = await self.__leds.get()
return leds
def set_leds(self, led_byte: int) -> None:
num = bool(led_byte & 1)
caps = bool((led_byte >> 1) & 1)
scroll = bool((led_byte >> 2) & 1)
self.__leds.update(num=num, caps=caps, scroll=scroll)
def __key(self) -> list[int]:
cmd = [0x00, 0x02, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00]
counter = 0
for key in self.__active_keys:
if key[1]:
cmd[3 + counter] = self.__keycode(key[0])
else:
cmd[5 + counter] = self.__keycode(key[0])
counter += 1
return cmd
def __keycode(self, key: str) -> int:
return KEYMAP[key].usb.code
def __is_modifier(self, key: str) -> bool:
return KEYMAP[key].usb.is_modifier
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