timer: Decouple timer logic from the widget tick (!8) · Merge requests · GNOME / Clocks

Moving the timer logic in a separate processing timeout outside the widget frame update tick.

fixes timer firing when the window is not being repainted https://bugzilla.redhat.com/show_bug.cgi?id=1525025
the countdown frame is updated at most 25 times a second which should slightly reduce CPU usage

timer: Decouple timer logic from the widget tick