The end goal is to make GcalEventEditorSection require inheriting
AdwPreferencesGroup. Given that most widgets utilizing
GcalEventEditorSection inherit another widget, we first want to
change and adapt the inheritance, and then bump the requirement
of the interface.
These changes will be made incrementally, starting
with GcalNotesSection.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-calendar/-/merge_requests/781>
UX/UI designed by Philipp Sauberzweig (@PhilippSauberz).
The event editor dialog is now a NavigationView and the participants
details open in a separate page. Group attendees/participants in
AdwPreferencesGroups and bind groups'
ListBox widgets to backing filter models. These are just "views" into a
single GListStore containing all the event attendees.
Part-of: <https://gitlab.gnome.org/GNOME/gnome-calendar/-/merge_requests/671>
Read-only events show a "Done" button instead of the "Save" button.
The "Done" button does the same thing as "Cancel",
so the "Cancel" button is then redundant.
Likewise, it is impossible to delete events from read-only calendars,
as stated by the banner message in that dialog. In that case,
there's no reason to show a big "Delete" button that you can't click on.
Fixes https://gitlab.gnome.org/GNOME/gnome-calendar/-/issues/1168
Hari Rana