mirror of
https://github.com/mofeng-git/One-KVM.git
synced 2025-12-12 09:10:30 +08:00
69 lines
3.0 KiB
Python
69 lines
3.0 KiB
Python
# ========================================================================== #
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# #
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# KVMD - The main PiKVM daemon. #
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# #
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# Copyright (C) 2018-2022 Maxim Devaev <mdevaev@gmail.com> #
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# #
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# 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 #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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# This program is distributed in the hope that it will be useful, #
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# but WITHOUT ANY WARRANTY; without even the implied warranty of #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
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# GNU General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <https://www.gnu.org/licenses/>. #
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# #
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# ========================================================================== #
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from .... import aiomulti
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from ....keyboard.mappings import KEYMAP
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# =====
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class Keyboard:
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def __init__(self) -> None:
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self.__leds = aiomulti.AioSharedFlags({
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"num": False,
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"caps": False,
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"scroll": False,
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}, aiomulti.AioProcessNotifier(), bool)
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self.__modifiers = 0
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self.__active_keys: list[int] = []
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def set_leds(self, led_byte: int) -> None:
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self.__leds.update(
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num=bool(led_byte & 1),
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caps=bool((led_byte >> 1) & 1),
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scroll=bool((led_byte >> 2) & 1),
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)
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async def get_leds(self) -> dict[str, bool]:
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return (await self.__leds.get())
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def process_key(self, key: int, state: bool) -> bytes:
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code = KEYMAP[key].usb.code
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is_modifier = KEYMAP[key].usb.is_modifier
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if state:
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if is_modifier:
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self.__modifiers |= code
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elif len(self.__active_keys) < 6 and code not in self.__active_keys:
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self.__active_keys.append(code)
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else:
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if is_modifier:
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self.__modifiers &= ~code
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elif code in self.__active_keys:
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self.__active_keys.remove(code)
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cmd = [
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0, 0x02, 0x08, self.__modifiers, 0,
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0, 0, 0, 0, 0, 0,
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]
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for (index, code) in enumerate(self.__active_keys):
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cmd[index + 5] = code
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return bytes(cmd)
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