A pressure barrier is a barrier that activates after the user pushes
against the bottom of the screen in a short time. Implement this using
the new XInput 2.3 features that provide extended information about
pointer barriers, and use it so that pushing against the bottom of
the screen edge brings up the message tray.
https://bugzilla.gnome.org/show_bug.cgi?id=677215
As pressure barriers need a signalling mechanism to provide
information about when and where they are hit, an object which
provides a signal is a more appropriate abstraction for a pointer
barrier than a functional ID-based approach. Mutter has gained
pointer barrier wrappers, so use its objects instead of ours.
https://bugzilla.gnome.org/show_bug.cgi?id=677215
Before version 1.2 of GLSL it would not implicitly convert from int to
float which meant that if you compare a float variable with an integer
constant it will generate a compile error. In particular this means
that on GLES2 (which uses GLSL 1.0) the scroll view shader will not
compile on pedantic compilers, which includes Mesa. This patch just
changes it to use floating point constants.
https://bugzilla.gnome.org/show_bug.cgi?id=693339
Since the panel affects struts, if we change its height on mode
transitions, windows will move around which is particularly noticable
with maximized windows when coming out of the screen shield.
https://bugzilla.gnome.org/show_bug.cgi?id=692966
This, together with the panel's transparent background in the screen
shield, has the unfortunate side-effect of showing the desktop
background in a brief flash while coming out of the screen shield.
https://bugzilla.gnome.org/show_bug.cgi?id=692966
Instead of directly using symbols from GLX to check for the swap event
notification, the plugin now first verifies that the Cogl renderer is
actually using the GLX winsys and then indirectly fetches the pointers
for the GLX functions using cogl_get_proc_address. That way it will
continue to work if Cogl is using an EGL winsys.
Nothing in the Gnome Shell plugin now directly uses symbols from libGL
so we don't need to link to it. This helps to avoid problems linking
against two GL APIs when cogl is using a non-GL driver such as GLES2.
https://bugzilla.gnome.org/show_bug.cgi?id=693225
If the screen lock is enabled, lock the screen before suspension.
When using systemd, this will cover both explicitly suspending from
the user menu and suspension initiated by g-s-d (lid close, power
button).
https://bugzilla.gnome.org/show_bug.cgi?id=686482
If screen locking is enabled, the screen shield should drop down
on suspend. Currently this is achieved by either explicitly locking
the screen (when selecting "Suspend" from the user menu) or by
relying on g-s-d delaying the suspension enough time for the shield
to get into place (lid close, power button).
Systemd inhibitors offer a safer way to ensure that the screen is
locked before going to sleep, so add a small abstraction for them
in the loginManager - with inhibitors being a systemd-only feature,
the ConsoleKit path only has a dummy implementation.
https://bugzilla.gnome.org/show_bug.cgi?id=686482
Cogl sets this for us since commit 2701b93f159bf2d3387cedf2d06fe921ad5641f3.
Setting it twice is illegal and causes compile failures:
error C0204: version directive must be first statement and may not be repeated.
