[compiz] 'On Top' grayed out

[David Reveman]

On Tue, 2006-10-10 at 16:50 -0600, Elijah Newren wrote:
> On 10/10/06, David Reveman <davidr at novell.com> wrote:
> > It's a bug in libwnck. For some reason it always assumes that
> > the window manager doesn't support the above window state when
> > _NET_WM_ALLOWED_ACTIONS is set.
> 
> Actually, it's more of a bug in the EWMH than in libwnck.  The EWMH
> doesn't have a _NET_WM_ACTION_ABOVE, despite having so many other
> _NET_WM_ACTION_* abilities, so there's no way to advertise support for
> it.  The only reason that the "on top" ability shows in the
> right-click window for tasklist items when metacity is the window
> manager, is because of a bug in metacity that causes
> _NET_WM_ALLOWED_ACTIONS to not be set on any "normal" windows.
> Combined with the fact that libwnck just takes a random guess at the
> provided abilities when this property is not set and you find that we
> have a cancellation of bugs that falsely gives the impression that
> things are working correctly for metacity+libwnck.
> 
> We should push _NET_WM_ACTION_ABOVE on wm-spec-list and then get
> libwnck and compiz to support it (and metacity, but that's not
> relevant on this list; besides, metacity needs a lot more work than
> just this with the allowed actions stuff).

Yes, we should probably add _NET_WM_ACTION_BELOW too.

-David