Window buttons plugin: support urgency-like notifications based on xfce4-notifyd
GTK4 has removed support for setting urgency hints on windows (sigh), and apparently:
It was indeed dropped, and it's not coming back. The way forward is to integrate with the "startup notification" and "notifications" in general, in a way that can be related back to a window. E.g. a chat client that got a message would send a notification, and that would be tied to a window wanting to become active, so that the notification can be interacted with and directly focus the correct window.
(https://gitlab.freedesktop.org/wayland/wayland-protocols/-/merge_requests/9#note_374512)
Would it be possible to implement this in xfce4-panel, so that we'd get some kind of urgency-like highlight for window when it sends a notification to xfce4-notifyd? I suppose the panel would then remove this highlight when the window is activated (or notification explicitly discarded?).
That said, reading from that thread, I have no clue if anyone actually figured out how to bind notifications to a specific window.