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ComboBox is broken on GTK 4
It's a GTK bug: https://gitlab.gnome.org/GNOME/gtk/-/issues/3674
https://user-images.githubusercontent.com/39268094/153176190-87117018-6a9a-4bb0-bc93-6160a8188c3f.mp4
Hi, Dialect seems to be using a scrollable widget for language selection. Would that be applicable here?
Dialect uses a custom popover, with a list view. We could do something similar but that would essentially be re-implementing Gtk.ComboBox, which I'd rather not do.
There's the new Gtk.DropDown widget (which is supposed to supersede the combobox), the behavior of which is actually the same as the custom widget used in Dialect. Unfortunately we need text entry support, which Gtk.DropDown doesn't have.