Rather than having a scrollable listbox within a scrollable list of
widgets, move the listbox out to a separate dialogue.
This involves separating out all the code to query the apps, to get and
to set the app filter, from `MctUserControls` out into the new
`MctRestrictApplicationsSelector`. Most of it is unchanged, aside from
its interaction with the filter: the filter is now provided to the
widget by the calling code, rather than being queried by the widget
itself. The widget’s status can be queried into an
`MctAppFilterBuilder`, rather than being used to set the app filter
directly.
This commit redesigns the appearance of the relevant widgets in the main
window so that they follow the new list-box-like visual design. A
following commit will apply similar changes to the other widgest in the
main screen.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
The application doesn’t hold a ref to some of the widgets it holds a
pointer to, since their ownership is controlled by the main window. The
main window’s lifecycle is controlled by the application, but its
dispose cycle runs at a slightly different time.
Hence, we should disconnect from the widget signals when we can, but
without holding a strong ref.
This replicates the old interface from Endless’ gnome-control-center,
with no attempt to improve or rework it. That will come later.
It might not work fully.
It allows a user to be selected, and their parental controls to be
changed. It currently doesn’t filter the users.
It supports a simple ‘Loading’ screen, before displaying the main
interface. If loading fails (due to a D-Bus error with accountsservice),
an error page is displayed instead.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
Philip Withnall