[help] detect mouse motion

[georgetzlp]

I am trying to add a mouse move listener using the EventControllerMotion class from types/@girs/gtk-3.0/gtk-3.0.cjs (specifically to a notification widget for the ability to drag it off screen)

unfortunately I haven't found any way to do this as I am unable to add a controller to any kind of widget and there's no other event that can do this as far as I can tell