An account using a unique address per service, on a server with an alias
domain, ends up with every local part twice over and a From picker
nobody can use -- while only ever sending from a handful (#73).
Identities can now be hidden from that picker, from Identities &
signatures. Hiding is presentation only: the identity still exists,
still receives, and stays listed and editable, the way an unsubscribed
folder is still a folder. That framing is mbunkus's own, and it is the
right one -- this is a UI preference, not a change to the account.
Three things it refuses to do, because a sender picker with nothing
usable in it is worse than a cluttered one:
- it will not hide the identity a draft is already using, which would
leave the select with no matching option and move the From line
under the writer
- it will not hide the default, which is what a new draft starts on;
the button is disabled there and says why
- if every identity is somehow hidden -- reachable only through
settings sync, since the UI will not do it -- they are all offered
again
The setting syncs, so the picker looks the same on every device, which
follows from DEVICE_KEYS being a list of exceptions rather than a list
of what travels.
Verified against the mock with four identities and one hidden: the
picker offers the other three, the hidden address is gone from
composing, the default's hide button is disabled, and the row says the
identity still receives.