Hi,
It appears that GDL (Gnome Docking Library) is broken under Wayland.
From what I've figured out, the problem is that Wayland doesn't have
the concept of global windowing position which means that GDL doesn't know how to do drag-n-drop.[1] The blue "pseudo" window used to indicate where the window is while dragging does not change position.
GDL doesn't seem to be under active development so I can't see this being fixed upstream soon. (There were a handful of commits last year, mostly for translation updates.) The code and our interface to it are rather complicated and it would probably take someone a considerable amount of time to fix it. It might be time to rethink how we handle docked and floating dialogs. Any ideas?
Tav
[1] https://blog.gtk.org/2016/07/15/future-of-relative-window-positioni ng/