Re: Work in Progress: draft 1.9a

[Matthias Ettrich <ettrich troll no>]

On Sun, 04 Jul 1999, Marko Macek wrote:

[snip]

Thanks for your work Marko (I'm, unfortunately, running a bit out of time).

Regarding decorations: Didn't we agree on dropping the DECORATION hint and use
the Motif hint instead?  At least someone argued heavily for that and finally
convinced me.  


> 
> _NET_CLIENT_LIST, XA_WINDOW[]/32
> 
> An array of all X Windows managed by the window manager.
> 
> [[This is simple. Does anyone feel we need a faster mechanism based  on
> incremental updates? (based selection query + ADD/REMOVE updates, we
> must  be careful about race conditions if we do this)?
> It would be nice to have a query for managed windows in Z-order, for
> external implementation of Alt-Tab]]

It looks like we need at least three lists then :

    _NET_CLIENT_LIST creation/mapping order
    _NET_CLIENT_LIST_FOCUS focus order, for external alt-tab implementation
    _NET_CLIENT_LIST_STACKING stacking order (for tools like a pager).

While STACKING looks important to me, FOCUS isn't. An external alt-tab
implementation can monitor both _NET_CLIENT_LIST and _NET_ACTIVE_WINDOW to keep
track of the focus chain.

Keeping track of the stacking order is far more complicated, especially since
the module can't know whether the window manager really obeys the layer hint or
not.

How does the GNOME pager to stacking properly?

Matthias