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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
# ========================================================================== #
# #
# KVMD - The main Pi-KVM daemon. #
# #
# Copyright (C) 2018 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/>. #
# #
# ========================================================================== #
import struct
from typing import Optional
from typing import Any
from ....logging import get_logger
from .device import BaseDeviceProcess
from .events import BaseEvent
from .events import ClearEvent
from .events import ResetEvent
from .events import MouseButtonEvent
from .events import MouseMoveEvent
from .events import MouseRelativeEvent
from .events import MouseWheelEvent
# =====
class MouseProcess(BaseDeviceProcess):
def __init__(self, **kwargs: Any) -> None:
self.__absolute: bool = kwargs.pop("absolute")
self.__horizontal_wheel: bool = kwargs.pop("horizontal_wheel")
super().__init__(
name="mouse",
read_size=0,
initial_state={"absolute": self.__absolute}, # Just for the state
**kwargs,
)
self.__pressed_buttons: int = 0
self.__x = 0 # For absolute
self.__y = 0
def cleanup(self) -> None:
self._stop()
get_logger().info("Clearing HID-mouse events ...")
if self.__absolute:
report = self.__make_report(0, self.__x, self.__y, 0, 0)
else:
report = self.__make_report(0, 0, 0, 0, 0)
self._ensure_write(report, close=True) # Release all buttons
def send_clear_event(self) -> None:
self._clear_queue()
self._queue_event(ClearEvent())
def send_reset_event(self) -> None:
self._clear_queue()
self._queue_event(ResetEvent())
def send_button_event(self, button: str, state: bool) -> None:
self._queue_event(MouseButtonEvent(button, state))
def send_move_event(self, to_x: int, to_y: int) -> None:
if self.__absolute:
self._queue_event(MouseMoveEvent(to_x, to_y))
def send_relative_event(self, delta_x: int, delta_y: int) -> None:
if not self.__absolute:
self._queue_event(MouseRelativeEvent(delta_x, delta_y))
def send_wheel_event(self, delta_x: int, delta_y: int) -> None:
self._queue_event(MouseWheelEvent(delta_x, delta_y))
# =====
def _process_event(self, event: BaseEvent) -> bool:
if isinstance(event, ClearEvent):
return self.__process_clear_event()
elif isinstance(event, ResetEvent):
return self.__process_clear_event(reopen=True)
elif isinstance(event, MouseButtonEvent):
return self.__process_button_event(event)
elif isinstance(event, MouseMoveEvent):
return self.__process_move_event(event)
elif isinstance(event, MouseRelativeEvent):
return self.__process_relative_event(event)
elif isinstance(event, MouseWheelEvent):
return self.__process_wheel_event(event)
raise RuntimeError(f"Not implemented event: {event}")
def __process_clear_event(self, reopen: bool=False) -> bool:
self.__clear_state()
return self.__send_current_state(reopen=reopen)
def __process_button_event(self, event: MouseButtonEvent) -> bool:
if event.code & self.__pressed_buttons:
# Ранее нажатую кнопку отжимаем
self.__pressed_buttons &= ~event.code
if not self.__send_current_state():
return False
if event.state:
# Нажимаем если нужно
self.__pressed_buttons |= event.code
return self.__send_current_state()
return True
def __process_move_event(self, event: MouseMoveEvent) -> bool:
self.__x = event.to_fixed_x
self.__y = event.to_fixed_y
return self.__send_current_state()
def __process_relative_event(self, event: MouseRelativeEvent) -> bool:
return self.__send_current_state(relative_event=event)
def __process_wheel_event(self, event: MouseWheelEvent) -> bool:
return self.__send_current_state(wheel_event=event)
# =====
def __send_current_state(
self,
relative_event: Optional[MouseRelativeEvent]=None,
wheel_event: Optional[MouseWheelEvent]=None,
reopen: bool=False,
) -> bool:
if self.__absolute:
assert relative_event is None
move_x = self.__x
move_y = self.__y
else:
assert self.__x == self.__y == 0
if relative_event is not None:
move_x = relative_event.delta_x
move_y = relative_event.delta_y
else:
move_x = move_y = 0
if wheel_event is not None:
wheel_x = wheel_event.delta_x
wheel_y = wheel_event.delta_y
else:
wheel_x = wheel_y = 0
report = self.__make_report(self.__pressed_buttons, move_x, move_y, wheel_x, wheel_y)
if not self._ensure_write(report, reopen=reopen):
self.__clear_state()
return False
return True
def __clear_state(self) -> None:
self.__pressed_buttons = 0
self.__x = 0
self.__y = 0
def __make_report(self, buttons: int, move_x: int, move_y: int, wheel_x: int, wheel_y: int) -> bytes:
# XXX: Wheel Y before X: it's ok.
# See /kvmd/apps/otg/hid/mouse.py for details
if self.__horizontal_wheel:
return struct.pack(("<BHHbb" if self.__absolute else "<Bbbbb"), buttons, move_x, move_y, wheel_y, wheel_x)
else:
return struct.pack(("<BHHb" if self.__absolute else "<Bbbb"), buttons, move_x, move_y, wheel_y)
|
