Re: Proposing _NET_WM_STATE_FULLSCREEN_EXCLUSIVE

[Bryce Harrington <bryce canonical com>]

On Tue, Oct 23, 2012 at 04:26:20PM -0400, Ryan C. Gordon wrote:
> _NET_WM_STATE_FULLSCREEN_EXCLUSIVE indicates that the Window Manager
> MUST change the resolution of the window's screen to one that most
> closely matches the window's current dimensions. If no available
> resolution matches exactly, the Window Manager MUST select the
> closest available resolution larger than the window. The Window
> Manager MUST center the window within the new resolution, remove any
> window decorations, retain its original geometry, and grant that
> window input focus. If the chosen resolution does not match the
> window geometry, the Window Manager MUST obscure the rest of the
> screen so that the window is the only thing visible. If there is no
> resolution that can completely contain the window's undecorated
> geometry, the Window Manager MUST refuse to allow this hint.

Should the window manager also constrain the pointer to the area inside
the window, or is that the client window's responsibility?
 
Regarding centering, in the case of a multiple monitor layout, say two
1920x1200 monitors providing 3840 x 1200 total screen size, if a game
can run at 1920x1200 (but nothing larger), then shouldn't it occupy
either the left or right monitor rather than be centered half on each?
(Presumably it should be whichever screen the game was launched from?)
Should this case be handled by turning off unneeded displays to reduce
the desktop to 1920x1200, or by leaving the displays on but obscuring
them?

Thanks,
Bryce