I also clean up all the mutations of `user_ids`
in the calling code. We now have:
pill_user_ids
active_user_ids
user_id_set
user_ids
The new function is exported in anticipation of using
it from stream_create.js.
The old name was confusing, since the contents
of the div aren't just a table, and we have
smaller elements that actually do list a bunch
of subscriptions in tabular format.
Even though we intend to shortly share lots of code
for editing stream subscribers with the create-stream
UI, we don't want to confuse click handlers and
containers too much.
It's kind of silly to cache ListWidgets for subscriber
lists when we only ever update the most recent one.
This will save memory if you are managing a whole bunch
of streams, although I suspect the savings here is
mostly negligible unless you were doing something
crazy.
The main motivation here is just that it simplifies the
code.
Now our click handlers get stream_id directly from
e.target, and then downstream code is no longer
coupled to the event semantics.
Note that we'll probably just know the stream_id
more directly after future commits.
We also remove a little bit of redundant error
handling.
This is a fairly straightforward extraction.
It's good to test this with Iago, and then go into
Manage Streams and add/remove subscribers for a stream
like devel.
I copy/pasted two small functions that will soon
diverge from stream_edit. The get_stream_id function
will either use a module variable (since we're
generally only editing subscribers for one stream, and
we already have the singleton assumption with
`input_pill`) or a more strict CSS selector. And then
get_sub_for_target depends on get_stream_id. We may not
always need full subs, anyway, and when we adapt some
of this code for creating streams, things are likely to
change.
I stopped exporting a couple functions that have no
callers outside of this module.
The main entry point for the module is
enable_subscriber_management.
We continue to export invite_user_to_stream and
remove_user_from_stream, which should possibly be just
pulled into their own module to lessen some
dependencies, but they don't have too much baggage,
since they just wrap channel calls.
Steve Howell