Ditch GtkListBox and use AdwActionRow to display
the key options, adding them directly to the
preferences group.
This fixes two issues:
- Orca not reading the key options and their states
- The xkb-modifier-dialog rows looking inconsistent
with other rows with radio buttons, such as the ones
from the Multitasking and Keyboard panels
Also, remove visible=true from the AdwActionRow,
since GTK4 shows all widgets by default.
We add a toolbar view containing a scrolled window.
- We set the margins to 12 instead of 18
- Use AdwHeaderBar
- Set minimum size and default size
- Make resizable so it fits on small screens
See https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues/2624
This should avoid issues where this setting is changed just by opening
Gnome Control Center, as reported in
https://gitlab.gnome.org/GNOME/gnome-control-center/-/issues/918
This should also mean someone can tweak the settings as desired outside
Gnome Control Center, and not have them clobbered unless they open the
dialog in g-c-c.
Previously, there were multiple redundant lists of possible values for
this setting. This uses one struct to define not only all the possible
values, but also anything specific to the alternate characters key, so
this can be used for other modifiers.
This also changes the style of the dialog to use a GtkListBox.
