Use "await JSONLD.getInstance()" instead

No longer needed

We can access that API without a token.

It was only used in the demo.

Replace with the event bus for now

Add a scope so we don't have to care about naming conflicts
and set the verison to 0.1.0 since we don't have a stable API yet.

The keycloak library currently only sends us an event in case the token
is about to expire, which is problematic because there is a time window
where we don't have a new token yet and on mobile the timers used
might be suspended and come too late.

To avoid this we check every 10 seconds that the token is valid for 30
and to work around suspended timers we also check on "visibilitychange"
which should trigger then the website gets visible again after the browser
sleeps.

Now that we have a separate component for keyclaok we can move those
keycloak specific settings into their own attributes.

This should make it more clear what the components are used for

vpu-auth listens to login/logout events which the button emits
and the button shows data from the auth-update event.

Same hover effect, padding and cleanup the CSS etc.

It should only span the whole width in mobile mode

This should make it work in all (LTR at least) cases.

We don't want it to make the page scroll when the display is really small

By setting a max-width on the element it will use ellipsis to shorten the
user name

This reverts commit 1416d0ac942c8bf6f6d52efc03f9f59e6087b2fe.

Neuber, Eugen Ramon authored 4 years ago and Reiter, Christoph committed 4 years ago

See issue #9

If the page prevents the default handler in beforeunload the logout
never occurs and we end up in an endless transient "logging-out" state.

Prevent this by reverting the login status back in that case.

We don't want to depend on harcoded values in the build

No longer needed