When validating tokens, the dummyUser created at the beginning is set
with validated=true. This means there won't be the state change that used
to occur from validated:false to validated:true (which detects the moment
joined the meeting) , therefore the alert code that expects for this change
won't run.
To fix this for audio alerts, we now detect when user join by observing
additions in Users's collection. This is actually good because we start
observing this only once (in componentDidMount), differently we used to do,
by calling this every time the tracker was activated.
To distinguish between the user addition that initially populates user's
collection from those that happens after user join (which are the ones we
want), we store the initial state (at componentDidMount) and compare it
with new additions. If the user added is present at the initial state,
then it is an addition to populates the collection, otherwise this is a real
user addition (happened after user joined the meeting)
Partially fixes#11399
Moderators are able to send a message to the meeting's guest lobby. This new
event reaches bbb-web and is sent to the guest user with her/his status response
while polling. All guest users that are waiting for acceptance will be able to
read this message.
enableGuestLobbyMessage is disabled by default.
It is safer to look at subscriptions's state to users instead of depending
on the initial state of the collection at mounting time. Although
i couldn't force any race conditions on this, there's a chance it could
happen. The fix avoid this problem.
This complements #11533
Currently this information is lost everytime breakout-room component is
unmounted, causing the panel to shows wrong information during next renders
Fixes#11333
Replaces the PR #10604, which has been temporarily fixed a problem in 2.3a2, that is, the slide size gets crazy when turning on and off fullscreen mode. Since #10604 was just a workaround, I tried to fix it in a way making more sense.
### Closes Issue(s)
closes#10459 (already closed by #10604) and #10589
### Motivation
#10604 is fixing the problem by calling "slide change" event, although the slide has not been changed actually. I tried to fix the same problem by adding a "full screen change" event listener in the layout manager, which I think is more elegant.
