If `auto_login` is false, we shouldn't log in, so we only try to log in when
it is true. Otherwise we still try to restore the BOSH session (if applicable).
- Split between `login` auth and the rest (`external`, `anonymous`, `prebind`)
- It doesn't make sense to pass along credentials when not using `login` auth so avoid that flow.
- It's not necessary to pass the `reconnecting` flag to `attemptNonPreboundSession`
Instead optimize in other ways.
Also:
- Don't fade in when `animate` is false.
- `trimChats` now gets called in `afterShown`.
- Add now event `beforeShowingChatView`
Includes some refactoring:
- Don't send an `active` chat state notification when entering a MUC
I can't think of a good reason why this might be necessary or desired.
- Move `setChatState` form the view to the model
- Remove unused method `handleChatStateNotification`
- Don't store `role` and `affiliation` for the current user on the
ChatRoom object, but instead on the ChatRoomOccupant object representing
the user.
This change reverts the significant part of 1dfdb36d20
I can't say that I understand why libsignal throws `Error: Invalid signature`
when you try to build a session for your own (sending) device, but given that
messages can only be decrypted once, I guess it isn't really necessary
to encrypt for your own device, since you already have the plaintext.
In addition I've added some error handling so that we can recover
gracefully when session building fails for a subset of devices.
In some cases, it might be desirable to clear cached chat messages once you've
reconnected to the XMPP server.
For example, if you want to prevent the chat history from getting too long or
if you want to avoid gaps in the chat history (for example due to MAM not
returning all messages since the last cached message).
If you're using OMEMO, then you probably don't want to set this setting to
``true``. OMEMO messages can be decrypted only once, so if they then
subsequently get cleared, you won't get the plaintext back.
This is done to avoid unnecessary repaints and reflows (caused when a
message has already rendered and then an occupant is created and
attached to that message, cauring a re-render).
Related to #1266
