You can see our layers here: https://git.gnome.org/browse/mutter/tree/src/meta/common.h#n572
On Tue, Feb 4, 2014 at 2:45 AM, Emilio Pozuelo Monfort <[email protected]>wrote: > On 03/02/14 17:14, Emilio Pozuelo Monfort wrote: > > 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). > > I talked to Jasper on irc and he said mutter keeps a normal layer and a > fullscreen layer, and adds an extra layer where the focused window is > placed and > which is drawn above the other layers. That would solve #74219 as well. > However > this made me think we can solve #74219 easily without adding an extra > layer or > removing the fullscreen layer. We just need to raise a surface to the top > whenever it is focused, including lowering the fullscreen layer if that > isn't empty. > > I'll try to look at this later this week if I can find some time. > > Cheers, > Emilio > -- Jasper
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