The comments that were added in the code for this commit explain
the cases here, but essentially for topics, we need to decide
among a few possible behaviors with regard to composing:
- Leave it closed.
- Cancel the compose.
- Leave the compose box as it was before.
- Fill in the new topic.
Before this commit, we were cancelling compose in all cases (or
leaving it closed).
Now we leave it alone in some cases where there is already content.
And we fill in the topic when the stream was correct and the topic
was empty.
Fixes#3300
This commit extracts the method compose_actions.on_narrow()
to handle changing the compose box (as appropriate) after
any narrowing action.
This change should be mostly non-user-facing, but it's not
exactly a trivial extraction.
For the case where the user already had content in their
compose box, we continue to leave the compose box alone,
but we now update compose fading 150+ lines later in
narrow.activate().
Likewise, for cases where we cancel composing, this will
also happen later in the function.
Finally, for PM narrows, where we auto-open the compose box, we
no longer call compose.cancel() before calling compose.start(),
because either a) the compose box would have not been open
in the first place or b) the start() function can handle
clearing the old fields.
This is mostly just moving methods out of compose.js.
The variable `is_composing_message`, which isn't a boolean, has
been renamed to `message_type`, and there are new functions
set_message_type() and get_message_type() that wrap it.
This commit removes some shims related to the global variable
`compose_state`; now, `compose_state` is a typical global
variable with a 1:1 relationship with the module by the same
name.
The new module has 100% line coverage, most of it coming
via the tests on compose_actions.js. (The methods here are
super simple, so it's a good thing that the tests are somewhat
integrated with a higher layer.)
This moves respond_to_mention() and reply_with_mention() to
compose_actions.js. These methods are basically thin layers
on top of compose_actions.start().
This module extracts these two functions that get called by
several other modules:
start()
cancel()
It is a little bit arbitrary which functions got pulled over
with them, but it's generally functions that would have only
been called via start/cancel.
There are two goals for splitting out this code. The first
goal is simply to make `compose.js` have fewer responsibilities.
The second goal is to help break up circular dependencies.
The extraction of this module does more to clarify
dependencies than actually break them. The methods start()
and cancel() had actually been shimmed in an earlier commit,
and now they no longer have a shim.
Besides start/cancel, most of the functions here are only
exported to facilitate test stubbing. An exception is
decorate_stream_bar(), which is currently called from
ui_init.js. We probably should move the "blur" handler out
of there, but cleaning up ui_init.js is a project for another
day.
It may seem slightly odd that this commit doesn't pull over
finish() into this module, but finish() would bring in the
whole send-message codepath. You can think of it like this:
* compose_actions basically just populates the compose box
* compose.finish() makes the compose box do its real job,
which is to send a message
Steve Howell