Screen Edge handling in 4.11

[Martin Graesslin]

On Monday 21 January 2013 11:33:23 Aurélien Gâteau wrote:
> Le Monday 21 January 2013 11:03:53 Martin Gräßlin a écrit :
> > Hi workspace devs,
> > 
> > I just finished a rewrite of the Screen Edge handling in KWin [1] and now
> > I
> > want to tackle one of the long standing issues: hidden panel activation.
> > For those who do not know the plans first designed years ago: instead of
> > Plasma keeping track of where the panel is and reacting on the screen
> > edge, we just let KWin handle this edge for Plasma and notify Plasma when
> > the Panel should be shown. This brings the advantage that KWin and Plasma
> > do not fight over the edge (normally KWin should win, though there are
> > hacks to make Plasma win) and there is a consistent user experience on
> > how to interact with screen edges.
> > 
> > The new architecture has been implemented in a way to make that possible
> > and I have thought about how we can setup a protocol which does not only
> > suit the Plasma Panel case but also the Gwenview fullscreen & co cases.
> Overall, I like the idea. I assume this should not interfere with
> applications which do it the old way (checking the mouse cursor position
> over a fullscreen window)
see my reply to Marco's mail
> 
> I take it this system will be implemented in a library. Do you plan for a
> fallback plan, in case the system is using another window manager? For
> example when running on Gnome, Openbox, Windows, Mac OS?
I don't have any plans for a library yet and I at the moment cannot see how to 
have a fallback for GNOME or even Windows or MacOS. I don't know whether 
foreign systems provide such an API. Let's first add it for Plasma bits and 
then see whether it is needed for apps at all. In case we go for "no edge 
triggering if there is fullscreen app", we don't need to provide a lib for 
apps.

--
Martin Gräßlin