Comment 23 for bug 58977

It's more complicated than that; as I remember (from a couple of years ago when I posted the patch in #6 above) there are limitations in the 'strut' notification where a window tells the window manager to avoid an area; it can't really cope with an arbitrary area in the middle of the screen. So really it's a standardisation issue that the wm and panel need to understand; although heck knows if any of that has changed in the last couple of years.

Dave