Despite the length of this commit, it is a very straightforward
moving of code from narrow.js -> narrow_state.js, and then
everything else is just s/narrow.foo()/narrow_state.foo()/
(with a few tiny cleanups to remove some code duplication
in certain callers).
The only new functions are simple setter/getters that
encapsulate the current_filter variable:
narrow_state.reset_current_filter()
narrow_state.set_current_filter()
narrow_state.get_current_filter()
We removed narrow.predicate() as part of this, since it was dead
code.
Also, we removed the shim for narrow_state.set_compose_defaults(),
and since that was the last shim, we removed shim.js from the app.
This code makes the right pane work in "Manage Streams" when
you are editing a stream subscription. It handles basic
functionality (submitting forms, etc.), live updates, and
showing the pane as needed.
Most of the code here was simply moved from subs.js, but some
functions were pulled out of larger functions:
live update:
add_me_to_member_list
update_stream_name
update_stream_description
collapse/show:
collapse
show_sub
We also now export subs.show_subs_pane.
We eventually want stream_edit not to call into subs.js, and
this should be fairly easy--we just need to move some shared
methods to a new module.