The blank grid said nothing, and the only pointer anywhere was the status bar's
'No books. Begin by importing your library' - which is the wrong advice for
someone who has not added an account yet, since Import has nothing to scan.
An empty library has two causes with different next steps, and AccountsCount
already knows which one applies, so say the one that fits and offer the action
that goes with it:
no accounts Libation is empty.
Add your Audible account, then scan your library ...
[Add Account] [Take a Guided Tour]
no books No books in your library yet.
Scan your Audible account to bring your books in.
[Scan Library] [Take a Guided Tour]
The buttons run the same commands the menu items do, so the two cannot drift.
The tour is there because it is offered once on first launch and never again
once declined; Settings > Take a Guided Tour is not somewhere a new user looks.
Held back until LibraryStats has been counted at least once, which is what keeps
'Add your Audible account' off the screen in the moment between the window
appearing and a full library loading, and held back mid-scan. An empty library
takes precedence over an empty filter result, since 'no books match' is true but
useless when there are no books at all.
Both grid empty states now share one set of strings in GridEmptyStateUi rather
than the no-matches pair living in TrashBinUi, which was already the wrong home
for them and would only get worse with a third.
Co-authored-by: rmcrackan <rmcrackan@gmail.com>
Previously, only some calls to ApiExtended.CreateAsync() would prompt users to login if necessary. Other calls would only work if the account already had a valid identity, and they would throw exceptions otherwise.
Changed ApiExtended so that the UI registers a static ILoginChoiceEager factory delegate that ApiExtended will use in the event that a login is required.
