The test job was recompiling the software (unexpected behavior).
This was happening because the git checkout runs after the artifacts
download (resulting in the source code being newer than the object
files).
This commits saves and reuses the working directory produced by the
build job.
Use GsdDeviceManager to monitor libwacom-supported tablets coming and
going. Hide the Wacom panel from the list when there's no supported
tablets plugged in.
Whenever a panel is activated, there is a GtkBox that
is added between the window and the panel itself.
Investigating the history of this field, it originally
appeared at ec7f8c9b when the window started using
widgets rather than page numbers. Apparently, it was a
GtkBox to help dealing with the GtkNotebook (which was
later changed to the current GtkStack).
The field was renamed from 'current_panel' to 'current_panel_box'
at ab435aa9. But since the transition to GtkStack, there
is no real need to use the GtkBox anymore.
This patch removes this GtkBox, and as a consequence, the
code is slightly simplified.
[8/15] Compiling C object 'panels/background/panels@background@@background-chooser@sta/cc-background-xml.c.o'.
In file included from /usr/include/glib-2.0/gobject/gbinding.h:29:0,
from /usr/include/glib-2.0/glib-object.h:23,
from /usr/include/glib-2.0/gio/gioenums.h:28,
from /usr/include/glib-2.0/gio/giotypes.h:28,
from /usr/include/glib-2.0/gio/gio.h:26,
from ../panels/background/cc-background-xml.c:22:
../panels/background/cc-background-xml.c: In function ‘cc_background_xml_load_xml_internal’:
/usr/include/glib-2.0/gobject/gobject.h:512:32: warning: passing argument 2 of ‘emit_added_in_idle’ from incompatible pointer type [-Wincompatible-pointer-types]
#define g_object_ref(Obj) ((__typeof__(Obj)) (g_object_ref) (Obj))
^
../panels/background/cc-background-xml.c:310:34: note: in expansion of macro ‘g_object_ref’
emit_added_in_idle (xml, g_object_ref (item));
^~~~~~~~~~~~
../panels/background/cc-background-xml.c:138:1: note: expected ‘GObject * {aka struct _GObject *}’ but argument is of type ‘CcBackgroundItem * {aka struct _CcBackgroundItem *}’
emit_added_in_idle (CcBackgroundXml *xml,
^~~~~~~~~~~~~~~~~~
