When the "Automatic" mapping is chosen for a display-attached tablet device,
Mutter is in charge of applying the heuristics to map the tablet device to
its most likely attached display.
When that happens, the Wacom panel does not know better (or anything)
to show the calibration UI than picking a GdkMonitor and hoping for the
best.
To improve this situation, Mutter has been added a D-Bus interface so it
is possible to query it for the output that a tablet device is mapped to.
This commit adds the support for this interface, so that the Wacom panel
does know to pick the right GdkMonitor to fullscreen the calibration UI on.
Showing an arrow for an empty expander row for the event confuses the user.
The user may misunderstand there is the information behind the arrow and then
the user will click it but will not get any response from the panel.
Therefore, to prevent confusing the user, the expander will be hidden for a
event with an empty description.
Fixes: https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues/2031
Signed-off-by: Kate Hsuan <hpa@redhat.com>
When requesting the chassis type through systemd-hostnamed, it sometimes
returns an empty string "" not the "vm" to present the virtual machine.
Since this panel will not be shown in the VM environment, if systemd-hostnamed
returns an empty string or "vm", the panel will be hidden.
Signed-off-by: Kate Hsuan <hpa@redhat.com>
Change the add printer button text, from the empty state section, to "Add Printer..."
(previously was "Add a Printer...") so it gets consistent with the add printer button
from the headerbar (in Printers panel) and with other buttons in Settings that end with
ellipsis, such as the "Add Picture..." from the Appearance panel, which doesn't have the
article also.
