code.delx.au - mediapc-tools/blob - xfdesktop-focus-fix

   1 #!/usr/bin/env python3
   2
   3 import subprocess
   4 import time
   5 import Xlib
   6 import Xlib.display
   7
   8 display = Xlib.display.Display()
   9 root = display.screen().root
  10 NET_ACTIVE_WINDOW = display.intern_atom('_NET_ACTIVE_WINDOW')
  11
  12 def main():
  13     root.change_attributes(event_mask=Xlib.X.PropertyChangeMask)
  14
  15     handle_active_window_change()
  16
  17     while True:
  18         event = display.next_event()
  19         if is_active_window_change(event):
  20             handle_active_window_change()
  21
  22 def is_active_window_change(event):
  23     return (
  24         event.type == Xlib.X.PropertyNotify and
  25         event.atom == NET_ACTIVE_WINDOW
  26     )
  27
  28 def handle_active_window_change():
  29     window_id = get_active_window_id()
  30     if not window_id:
  31         focus_xfdesktop()
  32
  33 def get_active_window_id():
  34     prop = root.get_full_property(NET_ACTIVE_WINDOW, Xlib.X.AnyPropertyType)
  35     if prop and prop.value:
  36         return prop.value[0]
  37
  38 def try_with_sleep(fn):
  39     def wrapper(*args, **kwargs):
  40         count = 0
  41         while True:
  42             try:
  43                 return fn(*args, **kwargs)
  44             except:
  45                 if count > 5:
  46                     print("Failed finally")
  47                     raise
  48                 print("Failed, will retry")
  49                 time.sleep(1)
  50                 count += 1
  51     return wrapper
  52
  53 @try_with_sleep
  54 def focus_xfdesktop():
  55     print("Focusing xfdesktop")
  56     subprocess.check_output([
  57         'xdotool',
  58         'search',
  59         '--onlyvisible',
  60         '--class', 'xfdesktop',
  61         'windowfocus',
  62     ])
  63
  64 if __name__ == '__main__':
  65     main()