@Mikkel: I figure bamf might actually want to track focus changes all the time, though? notify-osd doesn't, it just uses it as an one-time call to find out whether there is any fullscreen window.
@Mikkel: I figure bamf might actually want to track focus changes all the time, though? notify-osd doesn't, it just uses it as an one-time call to find out whether there is any fullscreen window.