This is also exposed in the ShowOSD DBus method, the "monitor"
parameter may contain an integer to indicate the monitor number.
If the value is not provided or <0 is used, the monitor is shown
on the primary monitor as usually.
This way, the OSD can be used to notify upon events that solely
apply to one monitor, like tablet mapping as discussed in
https://bugzilla.gnome.org/show_bug.cgi?id=710373.
https://bugzilla.gnome.org/show_bug.cgi?id=712664
When the osd window is hidden based on the timeout, it accidentally
left the timeout ID in place. When a subsequent switcher popup came
up, it thought the OSD window was scheduled to be hidden and tried
to re-hide the actor. This caused the tween to be run along with
an extra call to enable_unredirect_for_screen.
The popup currently has a fixed size based on monitor size. As a result,
the popup's content may overflow if its minimum size is larger than the
popup size. To prevent this, use min-width/min-height for the popup size
so that the popup can grow if necessary.
https://bugzilla.gnome.org/show_bug.cgi?id=696523
Implement a basic OSD popup that shows an icon and optionally a label
and a fill level. It is based on the existing OSD implementation in
gnome-settings-daemon, which it will replace.
https://bugzilla.gnome.org/show_bug.cgi?id=613543
