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

   1 #!/usr/bin/env python3
   2
   3 import os
   4 import subprocess
   5 import time
   6 import Xlib
   7 import Xlib.display
   8
   9 display = Xlib.display.Display()
  10 root = display.screen().root
  11 NET_ACTIVE_WINDOW = display.intern_atom('_NET_ACTIVE_WINDOW')
  12
  13 def main():
  14     root.change_attributes(event_mask=Xlib.X.PropertyChangeMask)
  15
  16     handle_active_window_change()
  17
  18     while True:
  19         event = display.next_event()
  20         if is_active_window_change(event):
  21             handle_active_window_change()
  22
  23 def is_active_window_change(event):
  24     return (
  25         event.type == Xlib.X.PropertyNotify and
  26         event.atom == NET_ACTIVE_WINDOW
  27     )
  28
  29 def handle_active_window_change():
  30     if is_running_media_wrap():
  31         return
  32
  33     window_id = get_active_window_id()
  34     if not window_id:
  35         focus_xfdesktop()
  36
  37 def is_running_media_wrap():
  38     return os.path.isfile(os.path.expanduser("~/.mediawrap.lock"))
  39
  40 def get_active_window_id():
  41     prop = root.get_full_property(NET_ACTIVE_WINDOW, Xlib.X.AnyPropertyType)
  42     if prop and prop.value:
  43         return prop.value[0]
  44
  45 def try_with_sleep(fn):
  46     def wrapper(*args, **kwargs):
  47         count = 0
  48         while True:
  49             try:
  50                 return fn(*args, **kwargs)
  51             except:
  52                 if count > 5:
  53                     print("Failed finally")
  54                     raise
  55                 print("Failed, will retry")
  56                 time.sleep(1)
  57                 count += 1
  58     return wrapper
  59
  60 @try_with_sleep
  61 def focus_xfdesktop():
  62     print("Focusing xfdesktop")
  63     subprocess.check_output([
  64         'xdotool',
  65         'search',
  66         '--onlyvisible',
  67         '--class', 'xfdesktop',
  68         'windowfocus',
  69     ])
  70
  71 if __name__ == '__main__':
  72     main()