Replaced fake_input with display_manager's send_event

pynput_service.py

@@ -6,6 +6,7 @@ import sys
 import socket
 from Xlib.ext.xtest import fake_input
 from Xlib import X
+import Xlib
 
 KeyCode._from_symbol("\0")  # test
 
@@ -16,15 +17,31 @@ class MyController(Controller):
         :param event: The *X* keyboard event.
         :param int keysym: The keysym to handle.
         """
-        event = X.KeyPress if is_press \
-            else X.KeyRelease
 
-        keysym = self._keysym(key)
+        event = Xlib.display.event.KeyPress if is_press \
-        # Get keycode according to system language
+            else Xlib.display.event.KeyRelease
-        keycode = self._display.keysym_to_keycode(keysym)
+
+        origin_keysym = self._keysym(key)
+        keycode = self._display.keysym_to_keycode(origin_keysym)
+
+        with display_manager(self._display) as dm, self.modifiers as modifiers:
+            # Under certain cimcumstances, such as when running under Xephyr,
+            # the value returned by dm.get_input_focus is an int
+            window = dm.get_input_focus().focus
+            send_event = getattr(
+                window,
+                'send_event',
+                lambda event: dm.send_event(window, event))
+            send_event(event(
+                detail=keycode,
+                state=self._shift_mask(modifiers),
+                time=0,
+                root=dm.screen().root,
+                window=window,
+                same_screen=0,
+                child=Xlib.X.NONE,
+                root_x=0, root_y=0, event_x=0, event_y=0))
 
-        fake_input(self._display, event,  keycode)
-        self._display.sync()
 
 
 keyboard = MyController()