lightdash: Preferences window freezes after opening dashboard

[adlo]

I am writing a panel plugin called lightdash, which aims to be a lightweight GNOME Shell-like dashboard for Xfce.

After opening the dashboard, the preferences window freezes. I have narrowed it down to an issue with GDK event filters, as it works properly when I remove the call to gdk_window_add_filter () here:

https://github.com/adlocode/xfce4-lightdash-plugin/blob/master/src/lightdash-window-switcher.c#L1301

I am not sure how to resolve this issue; does anyone have any ideas?

Regards

adlo