[PATCH weston] Fullscreen surfaces

[Emilio Pozuelo Monfort]

Hi Bill,

On 30/01/14 23:33, Bill Spitzak wrote:
> There really should not be a "fullscreen layer" which is what is causing this
> problem. "layers" are imho a mistake except for the desttop and the mouse cursor.
> 
> What I think needs to happen:
> 
> Fullscreen, normal windows, and "panels" can be arranged in any stacking order,
> except the compositor enforces this rule:
> 
> The "panels" are always just below the lowest fullscreen window. If there are no
> fullscreen windows then the panel is above all windows.
> 
> There are several ways to enforce this but one that matches current window apis is:
> 
> 1. When a window is "raised" and there are no fullscreen windows, the panels are
> also raised to remain above it. If there are fullscreen windows then the panel
> is not moved. Note that a window can be raised above a fullscreen window, thus
> solving this bug.
> 
> 2. Whan a window switches to fullscreen it is also raised (thus it will end up
> above the panel). (an alternative is to lower the panel but that is not standard
> behavior in existing windowing systems).
> 
> 3. When the last fullscreen window switches to non-fullscreen, the panel is
> raised above all windows.

I think this could work well. It would indeed solve
https://bugs.freedesktop.org/show_bug.cgi?id=74219. I just disagree with one
detail: the panel should always be on top except when the top surface is
fullscreened. So if there are two surfaces, a normal surface above and a
fullscreen surface behind it, then the panel should be raised (that would be
consistent with what we currently do and with what gnome-shell does).

Regards,
Emilio