Dogcows Code - chaz/openbox/blob - scripts/focus.py

   1 ###########################################################################
   2 ###          Functions for helping out with your window focus.          ###
   3 ###########################################################################
   4
   5 ###########################################################################
   6 ###         Options that affect the behavior of the focus module.       ###
   7 ###########################################################################
   8 AVOID_SKIP_TASKBAR = 1
   9 """Don't focus windows which have requested to not be displayed in taskbars.
  10    You will still be able to focus the windows, but not through cycling, and
  11    they won't be focused as a fallback if 'fallback' is enabled."""
  12 FALLBACK = 0
  13 """Send focus somewhere when nothing is left with the focus, if possible."""
  14 ###########################################################################
  15
  16 ###########################################################################
  17 ###########################################################################
  18
  19 ###########################################################################
  20 ###      Internal stuff, should not be accessed outside the module.     ###
  21 ###########################################################################
  22
  23 import ob
  24
  25 # maintain a list of clients, stacked in focus order
  26 _clients = []
  27 _skip = 0
  28
  29 def _focusable(client, desktop):
  30     if not client.normal(): return 0
  31     if not (client.canFocus() or client.focusNotify()): return 0
  32     if client.iconic(): return 0
  33     if AVOID_SKIP_TASKBAR and client.skipTaskbar(): return 0
  34
  35     desk = client.desktop()
  36     if not (desk == 0xffffffff or desk == desktop): return 0
  37
  38     return 1
  39
  40 def _remove(client):
  41     """This function exists because Swig pointers don't define a __eq__
  42        function, so list.remove(ptr) does not work."""
  43     win = client.window()
  44     for i in range(len(_clients)):
  45         if _clients[i].window() == win:
  46             _clients.pop(i)
  47             return
  48     raise ValueError("_remove(x): x not in _clients list.")
  49
  50 def _focused(data):
  51     global _clients, _skip
  52
  53     if _skip:
  54         _skip -= 1
  55         return
  56
  57     if data.client:
  58         # move it to the top
  59         try:
  60             _remove(data.client)
  61         except ValueError: pass # happens if _focused comes before _newwindow
  62         _clients.insert(0, data.client)
  63     elif FALLBACK:
  64         # pass around focus
  65         desktop = ob.openbox.screen(data.screen).desktop()
  66         for c in _clients:
  67             if _focusable(c, desktop) and c.focus():
  68                 break
  69
  70 def _newwindow(data):
  71     # make sure its not already in the list
  72     win = data.client.window()
  73     for i in range(len(_clients)):
  74         if _clients[i].window() == win:
  75             return
  76     _clients.append(data.client)
  77
  78 def _closewindow(data):
  79     _remove(data.client)
  80
  81 ob.ebind(ob.EventAction.NewWindow, _newwindow)
  82 ob.ebind(ob.EventAction.CloseWindow, _closewindow)
  83 ob.ebind(ob.EventAction.Focus, _focused)
  84
  85 print "Loaded focus.py"