mirror of
https://github.com/mofeng-git/One-KVM.git
synced 2025-12-12 01:00:29 +08:00
117 lines
4.4 KiB
Python
117 lines
4.4 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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import math
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from ....mouse import MouseRange
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from ....mouse import MouseDelta
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# =====
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class Mouse: # pylint: disable=too-many-instance-attributes
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def __init__(self) -> None:
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self.__absolute = True
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self.__buttons = 0
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self.__to_x = (0, 0)
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self.__to_y = (0, 0)
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self.__delta_x = 0
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self.__delta_y = 0
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self.__wheel_y = 0
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def set_absolute(self, flag: bool) -> None:
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self.__absolute = flag
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def is_absolute(self) -> bool:
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return self.__absolute
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def process_button(self, button: str, state: bool) -> bytes:
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code = 0x00
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match button:
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case "left":
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code = 0x01
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case "right":
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code = 0x02
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case "middle":
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code = 0x04
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case "up":
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code = 0x08
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case "down":
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code = 0x10
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if code:
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if state:
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self.__buttons |= code
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else:
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self.__buttons &= ~code
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self.__wheel_y = 0
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if not self.__absolute:
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return self.__make_relative_cmd()
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else:
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return self.__make_absolute_cmd()
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def process_move(self, to_x: int, to_y: int) -> bytes:
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self.__to_x = self.__fix_absolute(to_x)
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self.__to_y = self.__fix_absolute(to_y)
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self.__wheel_y = 0
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return self.__make_absolute_cmd()
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def __fix_absolute(self, value: int) -> tuple[int, int]:
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assert MouseRange.MIN <= value <= MouseRange.MAX
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to_fixed = math.ceil(MouseRange.remap(value, 0, MouseRange.MAX) / 8)
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return (to_fixed >> 8, to_fixed & 0xFF)
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def process_wheel(self, delta_x: int, delta_y: int) -> bytes:
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_ = delta_x
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assert MouseDelta.MIN <= delta_y <= MouseDelta.MAX
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self.__wheel_y = (1 if delta_y > 0 else 255)
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if not self.__absolute:
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return self.__make_relative_cmd()
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else:
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return self.__make_absolute_cmd()
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def process_relative(self, delta_x: int, delta_y: int) -> bytes:
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self.__delta_x = self.__fix_relative(delta_x)
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self.__delta_y = self.__fix_relative(delta_y)
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self.__wheel_y = 0
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return self.__make_relative_cmd()
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def __make_absolute_cmd(self) -> bytes:
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return bytes([
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0, 0x04, 0x07, 0x02,
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self.__buttons,
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self.__to_x[1], self.__to_x[0],
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self.__to_y[1], self.__to_y[0],
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self.__wheel_y,
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])
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def __make_relative_cmd(self) -> bytes:
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return bytes([
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0, 0x05, 0x05, 0x01,
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self.__buttons,
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self.__delta_x, self.__delta_y,
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self.__wheel_y,
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])
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def __fix_relative(self, value: int) -> int:
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assert MouseDelta.MIN <= value <= MouseDelta.MAX
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value = math.ceil(value / 3)
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return (value if value >= 0 else (255 + value))
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