refactoring

kvmd/plugins/hid/otg/keyboard.py

@@ -44,11 +44,23 @@ class _ResetEvent(BaseEvent):
     pass
 
 
+@dataclasses.dataclass(frozen=True)
+class _ModifierEvent(BaseEvent):
+    modifier: keymap.OtgKey
+    state: bool
+
+    def __post_init__(self) -> None:
+        assert self.modifier.is_modifier
+
+
 @dataclasses.dataclass(frozen=True)
 class _KeyEvent(BaseEvent):
     key: keymap.OtgKey
     state: bool
 
+    def __post_init__(self) -> None:
+        assert not self.key.is_modifier
+
 
 # =====
 class KeyboardProcess(BaseDeviceProcess):
@@ -74,8 +86,11 @@ class KeyboardProcess(BaseDeviceProcess):
         self._queue_event(_ResetEvent())
 
     def send_key_event(self, key: str, state: bool) -> None:
-        assert key in keymap.KEYMAP
-        self._queue_event(_KeyEvent(key=keymap.KEYMAP[key].otg, state=state))
+        otg_key = keymap.KEYMAP[key].otg
+        if otg_key.is_modifier:
+            self._queue_event(_ModifierEvent(otg_key, state))
+        else:
+            self._queue_event(_KeyEvent(otg_key, state))
 
     # =====
 
@@ -84,6 +99,8 @@ class KeyboardProcess(BaseDeviceProcess):
             self.__process_clear_event()
         elif isinstance(event, _ResetEvent):
             self.__process_clear_event(reopen=True)
+        elif isinstance(event, _ModifierEvent):
+            self.__process_modifier_event(event)
         elif isinstance(event, _KeyEvent):
             self.__process_key_event(event)
 
@@ -94,19 +111,18 @@ class KeyboardProcess(BaseDeviceProcess):
             self._close_device()
         self.__send_current_state()
 
-    def __process_key_event(self, event: _KeyEvent) -> None:
-        if event.key.is_modifier:
-            if event.key in self.__pressed_modifiers:
+    def __process_modifier_event(self, event: _ModifierEvent) -> None:
+        if event.modifier in self.__pressed_modifiers:
             # Ранее нажатый модификатор отжимаем
-                self.__pressed_modifiers.remove(event.key)
+            self.__pressed_modifiers.remove(event.modifier)
             if not self.__send_current_state():
                 return
         if event.state:
             # Нажимаем если нужно
-                self.__pressed_modifiers.add(event.key)
+            self.__pressed_modifiers.add(event.modifier)
             self.__send_current_state()
 
-        else:  # regular key
+    def __process_key_event(self, event: _KeyEvent) -> None:
         if event.key in self.__pressed_keys:
             # Ранее нажатую клавишу отжимаем
             self.__pressed_keys[self.__pressed_keys.index(event.key)] = None
@@ -122,13 +138,14 @@ class KeyboardProcess(BaseDeviceProcess):
             self.__pressed_keys[self.__pressed_keys.index(None)] = event.key
             self.__send_current_state()
 
+    # =====
+
     def __send_current_state(self) -> bool:
         ok = False
         if self._ensure_device():
             modifiers = 0
-            for key in self.__pressed_modifiers:
-                assert key.is_modifier
-                modifiers |= key.code
+            for modifier in self.__pressed_modifiers:
+                modifiers |= modifier.code
 
             assert len(self.__pressed_keys) == 6
             keys = [

kvmd/plugins/hid/otg/mouse.py

@@ -31,14 +31,6 @@ from .device import BaseEvent
 from .device import BaseDeviceProcess
 
 
-# =====
-_BUTTONS = {
-    "left":   0x1,
-    "right":  0x2,
-    "middle": 0x4,
-}
-
-
 # =====
 class _ClearEvent(BaseEvent):
     pass
@@ -59,20 +51,12 @@ class _MoveEvent(BaseEvent):
     to_x: int
     to_y: int
 
-    def __post_init__(self) -> None:
-        assert -32768 <= self.to_x <= 32767
-        assert -32768 <= self.to_y <= 32767
-
 
 @dataclasses.dataclass(frozen=True)
 class _WheelEvent(BaseEvent):
     delta_x: int
     delta_y: int
 
-    def __post_init__(self) -> None:
-        assert -127 <= self.delta_x <= 127
-        assert -127 <= self.delta_y <= 127
-
 
 # =====
 class MouseProcess(BaseDeviceProcess):
@@ -99,13 +83,23 @@ class MouseProcess(BaseDeviceProcess):
         self._queue_event(_ResetEvent())
 
     def send_button_event(self, button: str, state: bool) -> None:
-        assert button in _BUTTONS
-        self._queue_event(_ButtonEvent(code=_BUTTONS[button], state=state))
+        code: int = {
+            "left":   0x1,
+            "right":  0x2,
+            "middle": 0x4,
+        }[button]
+        self._queue_event(_ButtonEvent(code, state))
 
     def send_move_event(self, to_x: int, to_y: int) -> None:
+        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))
 
     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))
 
     # =====
@@ -147,6 +141,8 @@ class MouseProcess(BaseDeviceProcess):
     def __process_wheel_event(self, event: _WheelEvent) -> None:
         self.__send_current_state(event.delta_x, event.delta_y)
 
+    # =====
+
     def __send_current_state(self, delta_x: int, delta_y: int) -> bool:
         ok = False
         if self._ensure_device():
@@ -167,6 +163,6 @@ class MouseProcess(BaseDeviceProcess):
         self.__y = 0
 
     def __make_report(self, buttons: int, to_x: int, to_y: int, delta_x: int, delta_y: int) -> bytes:
-        to_x = (to_x + 32768) // 2
-        to_y = (to_y + 32768) // 2
+        # XXX: Delta Y before X: it's ok.
+        # See /kvmd/apps/otg/hid/keyboard.py for details
         return struct.pack("<BHHbb", buttons, to_x, to_y, delta_y, delta_x)