refactoring

kvmd/plugins/hid/otg/device.py

@@ -36,13 +36,10 @@ from .... import aiomulti
 from .... import aioproc
 
 from .usb import UsbDeviceController
+from .events import BaseEvent
 
 
 # =====
-class BaseEvent:
-    pass
-
-
 class BaseDeviceProcess(multiprocessing.Process):  # pylint: disable=too-many-instance-attributes
     def __init__(  # pylint: disable=too-many-arguments
         self,

kvmd/plugins/hid/otg/events.py

@@ -0,0 +1,118 @@
+# ========================================================================== #
+#                                                                            #
+#    KVMD - The main Pi-KVM daemon.                                          #
+#                                                                            #
+#    Copyright (C) 2018  Maxim Devaev <mdevaev@gmail.com>                    #
+#                                                                            #
+#    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 dataclasses
+
+from typing import Union
+
+from ....keyboard.mappings import OtgKey
+from ....keyboard.mappings import KEYMAP
+
+
+# =====
+class BaseEvent:
+    pass
+
+
+class ClearEvent(BaseEvent):
+    pass
+
+
+class ResetEvent(BaseEvent):
+    pass
+
+
+# =====
+@dataclasses.dataclass(frozen=True)
+class KeyEvent(BaseEvent):
+    key: OtgKey
+    state: bool
+
+    def __post_init__(self) -> None:
+        assert (not self.key.is_modifier)
+
+
+@dataclasses.dataclass(frozen=True)
+class ModifierEvent(BaseEvent):
+    modifier: OtgKey
+    state: bool
+
+    def __post_init__(self) -> None:
+        assert self.modifier.is_modifier
+
+
+def make_keyboard_event(key: str, state: bool) -> Union[KeyEvent, ModifierEvent]:
+    otg_key = KEYMAP[key].otg
+    if otg_key.is_modifier:
+        return ModifierEvent(otg_key, state)
+    return KeyEvent(otg_key, state)
+
+
+# =====
+@dataclasses.dataclass(frozen=True)
+class MouseButtonEvent(BaseEvent):
+    button: str
+    state: bool
+    code: int = 0
+
+    def __post_init__(self) -> None:
+        object.__setattr__(self, "code", {
+            "left":   0x1,
+            "right":  0x2,
+            "middle": 0x4,
+            "up":     0x8,  # Back
+            "down":   0x10,  # Forward
+        }[self.button])
+
+
+@dataclasses.dataclass(frozen=True)
+class MouseMoveEvent(BaseEvent):
+    to_x: int
+    to_y: int
+    to_fixed_x: int = 0
+    to_fixed_y: int = 0
+
+    def __post_init__(self) -> None:
+        assert -32768 <= self.to_x <= 32767
+        assert -32768 <= self.to_y <= 32767
+        object.__setattr__(self, "to_fixed_x", (self.to_x + 32768) // 2)
+        object.__setattr__(self, "to_fixed_y", (self.to_y + 32768) // 2)
+
+
+@dataclasses.dataclass(frozen=True)
+class MouseRelativeEvent(BaseEvent):
+    delta_x: int
+    delta_y: int
+
+    def __post_init__(self) -> None:
+        assert -127 <= self.delta_x <= 127
+        assert -127 <= self.delta_y <= 127
+
+
+@dataclasses.dataclass(frozen=True)
+class MouseWheelEvent(BaseEvent):
+    delta_x: int
+    delta_y: int
+
+    def __post_init__(self) -> None:
+        assert -127 <= self.delta_x <= 127
+        assert -127 <= self.delta_y <= 127

kvmd/plugins/hid/otg/keyboard.py

@@ -20,8 +20,6 @@
 # ========================================================================== #
 
 
-import dataclasses
-
 from typing import Tuple
 from typing import List
 from typing import Set
@@ -32,31 +30,15 @@ from typing import Any
 from ....logging import get_logger
 
 from ....keyboard.mappings import OtgKey
-from ....keyboard.mappings import KEYMAP
 
-from .device import BaseEvent
 from .device import BaseDeviceProcess
 
-
-# =====
-class _ClearEvent(BaseEvent):
-    pass
-
-
-class _ResetEvent(BaseEvent):
-    pass
-
-
-@dataclasses.dataclass(frozen=True)
-class _ModifierEvent(BaseEvent):
-    modifier: OtgKey
-    state: bool
-
-
-@dataclasses.dataclass(frozen=True)
-class _KeyEvent(BaseEvent):
-    key: OtgKey
-    state: bool
+from .events import BaseEvent
+from .events import ClearEvent
+from .events import ResetEvent
+from .events import KeyEvent
+from .events import ModifierEvent
+from .events import make_keyboard_event
 
 
 # =====
@@ -79,17 +61,15 @@ class KeyboardProcess(BaseDeviceProcess):
 
     def send_clear_event(self) -> None:
         self._clear_queue()
-        self._queue_event(_ClearEvent())
+        self._queue_event(ClearEvent())
 
     def send_reset_event(self) -> None:
         self._clear_queue()
-        self._queue_event(_ResetEvent())
+        self._queue_event(ResetEvent())
 
     def send_key_events(self, keys: Iterable[Tuple[str, bool]]) -> None:
         for (key, state) in keys:
-            otg_key = KEYMAP[key].otg
-            cls = (_ModifierEvent if otg_key.is_modifier else _KeyEvent)
-            self._queue_event(cls(otg_key, state))
+            self._queue_event(make_keyboard_event(key, state))
 
     # =====
 
@@ -105,13 +85,13 @@ class KeyboardProcess(BaseDeviceProcess):
     # =====
 
     def _process_event(self, event: BaseEvent) -> bool:
-        if isinstance(event, _ClearEvent):
+        if isinstance(event, ClearEvent):
             return self.__process_clear_event()
-        elif isinstance(event, _ResetEvent):
+        elif isinstance(event, ResetEvent):
             return self.__process_clear_event(reopen=True)
-        elif isinstance(event, _ModifierEvent):
+        elif isinstance(event, ModifierEvent):
             return self.__process_modifier_event(event)
-        elif isinstance(event, _KeyEvent):
+        elif isinstance(event, KeyEvent):
             return self.__process_key_event(event)
         raise RuntimeError(f"Not implemented event: {event}")
 
@@ -120,7 +100,7 @@ class KeyboardProcess(BaseDeviceProcess):
         self.__clear_keys()
         return self.__send_current_state(reopen=reopen)
 
-    def __process_modifier_event(self, event: _ModifierEvent) -> bool:
+    def __process_modifier_event(self, event: ModifierEvent) -> bool:
         if event.modifier in self.__pressed_modifiers:
             # Ранее нажатый модификатор отжимаем
             self.__pressed_modifiers.remove(event.modifier)
@@ -132,7 +112,7 @@ class KeyboardProcess(BaseDeviceProcess):
             return self.__send_current_state()
         return True
 
-    def __process_key_event(self, event: _KeyEvent) -> bool:
+    def __process_key_event(self, event: KeyEvent) -> bool:
         if event.key in self.__pressed_keys:
             # Ранее нажатую клавишу отжимаем
             self.__pressed_keys[self.__pressed_keys.index(event.key)] = None

kvmd/plugins/hid/otg/mouse.py

@@ -21,48 +21,21 @@
 
 
 import struct
-import dataclasses
 
 from typing import Optional
 from typing import Any
 
 from ....logging import get_logger
 
-from .device import BaseEvent
 from .device import BaseDeviceProcess
 
-
-# =====
-class _ClearEvent(BaseEvent):
-    pass
-
-
-class _ResetEvent(BaseEvent):
-    pass
-
-
-@dataclasses.dataclass(frozen=True)
-class _ButtonEvent(BaseEvent):
-    code: int
-    state: bool
-
-
-@dataclasses.dataclass(frozen=True)
-class _MoveEvent(BaseEvent):
-    to_x: int
-    to_y: int
-
-
-@dataclasses.dataclass(frozen=True)
-class _RelativeEvent(BaseEvent):
-    delta_x: int
-    delta_y: int
-
-
-@dataclasses.dataclass(frozen=True)
-class _WheelEvent(BaseEvent):
-    delta_x: int
-    delta_y: int
+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
 
 
 # =====
@@ -93,55 +66,40 @@ class MouseProcess(BaseDeviceProcess):
 
     def send_clear_event(self) -> None:
         self._clear_queue()
-        self._queue_event(_ClearEvent())
+        self._queue_event(ClearEvent())
 
     def send_reset_event(self) -> None:
         self._clear_queue()
-        self._queue_event(_ResetEvent())
+        self._queue_event(ResetEvent())
 
     def send_button_event(self, button: str, state: bool) -> None:
-        code: int = {
-            "left":   0x1,
-            "right":  0x2,
-            "middle": 0x4,
-            "up":     0x8,  # Back
-            "down":   0x10,  # Forward
-        }[button]
-        self._queue_event(_ButtonEvent(code, state))
+        self._queue_event(MouseButtonEvent(button, state))
 
     def send_move_event(self, to_x: int, to_y: int) -> None:
         if self.__absolute:
-            assert -32768 <= to_x <= 32767
-            assert -32768 <= to_y <= 32767
-            to_x = (to_x + 32768) // 2
-            to_y = (to_y + 32768) // 2
-            self._queue_event(_MoveEvent(to_x, to_y))
+            self._queue_event(MouseMoveEvent(to_x, to_y))
 
     def send_relative_event(self, delta_x: int, delta_y: int) -> None:
         if not self.__absolute:
-            assert -127 <= delta_x <= 127
-            assert -127 <= delta_y <= 127
-            self._queue_event(_RelativeEvent(delta_x, delta_y))
+            self._queue_event(MouseRelativeEvent(delta_x, delta_y))
 
     def send_wheel_event(self, delta_x: int, delta_y: int) -> None:
-        assert -127 <= delta_x <= 127
-        assert -127 <= delta_y <= 127
-        self._queue_event(_WheelEvent(delta_x, delta_y))
+        self._queue_event(MouseWheelEvent(delta_x, delta_y))
 
     # =====
 
     def _process_event(self, event: BaseEvent) -> bool:
-        if isinstance(event, _ClearEvent):
+        if isinstance(event, ClearEvent):
             return self.__process_clear_event()
-        elif isinstance(event, _ResetEvent):
+        elif isinstance(event, ResetEvent):
             return self.__process_clear_event(reopen=True)
-        elif isinstance(event, _ButtonEvent):
+        elif isinstance(event, MouseButtonEvent):
             return self.__process_button_event(event)
-        elif isinstance(event, _MoveEvent):
+        elif isinstance(event, MouseMoveEvent):
             return self.__process_move_event(event)
-        elif isinstance(event, _RelativeEvent):
+        elif isinstance(event, MouseRelativeEvent):
             return self.__process_relative_event(event)
-        elif isinstance(event, _WheelEvent):
+        elif isinstance(event, MouseWheelEvent):
             return self.__process_wheel_event(event)
         raise RuntimeError(f"Not implemented event: {event}")
 
@@ -149,7 +107,7 @@ class MouseProcess(BaseDeviceProcess):
         self.__clear_state()
         return self.__send_current_state(reopen=reopen)
 
-    def __process_button_event(self, event: _ButtonEvent) -> bool:
+    def __process_button_event(self, event: MouseButtonEvent) -> bool:
         if event.code & self.__pressed_buttons:
             # Ранее нажатую кнопку отжимаем
             self.__pressed_buttons &= ~event.code
@@ -161,23 +119,23 @@ class MouseProcess(BaseDeviceProcess):
             return self.__send_current_state()
         return True
 
-    def __process_move_event(self, event: _MoveEvent) -> bool:
-        self.__x = event.to_x
-        self.__y = event.to_y
+    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: _RelativeEvent) -> bool:
+    def __process_relative_event(self, event: MouseRelativeEvent) -> bool:
         return self.__send_current_state(relative_event=event)
 
-    def __process_wheel_event(self, event: _WheelEvent) -> bool:
+    def __process_wheel_event(self, event: MouseWheelEvent) -> bool:
         return self.__send_current_state(wheel_event=event)
 
     # =====
 
     def __send_current_state(
         self,
-        relative_event: Optional[_RelativeEvent]=None,
-        wheel_event: Optional[_WheelEvent]=None,
+        relative_event: Optional[MouseRelativeEvent]=None,
+        wheel_event: Optional[MouseWheelEvent]=None,
         reopen: bool=False,
     ) -> bool: