This is the first part of a larger migration to convert Zulip's
reactions storage to something based on the codepoint, not the emoji
name that the user typed in, so that we don't need to worry about
changes in the names we're using breaking the emoji storage.
Because of local echo, message ids can change in message rows.
Having reactions use markup to indicate their message id just
creates more moving parts, since we would need to handle
message_id_changed events.
Now our handlers just call row.get_message_id() as needed.
This commit add $.create(), which allows you to create a
jQuery object that just has a name to identify it, as opposed
to some selector or HTML fragment. It's useful for things that
are really used as stubs.
This also fixes a bunch of the existing tests to use $.create().
Before this fix, you could actually just do $('some-stub'), but
now we enforce that the input to $() looks like a valid selector
or HTML fragment, and we make some exceptions for things like
window-stub and document-stub.
Hopefully this will make it more explicit that zjquery does
not truly simulate DOM, but it instead allows you to dynamically
set what you want the results of $('foo').find(some_selector)
to be.
This change sets us up to de-duplicate some code. It
changes behavior for the edge case situation where
you had the reaction menu open but then decide to
click on one of the existing reactions. This change
closes the emoji popover, which is probably the
correct behavior.
This adds the current_user_has_reacted_to_emoji() helper.
This new helper is easier to use and slightly more efficient
than calling get_user_list_for_message_reaction() and then
indexOf().
This also replaces one call to get_user_list_for_message_reaction()
with a list of user_ids that we already had locally.
The node tests were improved a bit here, including a minor
whitespace fixup.
If we get reactions for deactivated users, or otherwise missing
users, we only issue a blueslip warning now. The function
get_message_reactions() was indirectly causing blueslip errors
before this fix, but we can downgrade to warnings now that this
function has better unit tests around it.
We eventually want to track deactivated users on the client.
Fixes#4289
Joshua Pan
Tim Abbott
Steve Howell
Harshit Bansal