Now when we want to measure how long a block
of code takes to execute, we just wrap it with
`blueslip.measure_time`, instead of the awkward
idiom from my original commit of getting a callback
function.
My rationale for the original scheme was that I
wanted to minimize diffs and avoid changing
`const` to `let` in a few cases, but I believe
now that the function wrapper is nicer.
In a few cases I just removed the blueslip timing
code, since I was able to confirm on czo that
the times were pretty minimal.
We were adding `expanded` class to left-sidebar when searching
for streams even if the left-sidebar was not in the popover state.
This cased confusion with popovers.any_active returning true,
when actually it is not.
Currently, the Stream Name change isn't reflected in the streams
sidebar when a stream is renamed if the order of streams in the
sidebar remains unchanged, because the optimization to avoid
rerendering when nothing changes about the order prevents the
rerendering code from running.
We fix by this adding a flag in build_stream_list and
update_streams_sidebar functions to force a rerender, and pass that
when a stream is renamed.
Fixes#16026.
Instead of prohibiting ‘return undefined’ (#8669), we require that a
function must return an explicit value always or never. This prevents
you from forgetting to return a value in some cases. It will also be
important for TypeScript, which distinguishes between undefined and
void.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
ES and TypeScript modules are strict by default and don’t need this
directive. ESLint will remind us to add it to new CommonJS files and
remove it from ES and TypeScript modules.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
We will store list of stream ids to sort streams instead of names.
We have added a compare_function for sorting the list of stream_ids
by comparing stream names.
This change helps us to remove a couple of get_sub calls and using
stream ids instead of name also helps in avoiding bugs caused due
to live update on renaming of stream.
Prettier would do this anyway, but it’s separated out for a more
reviewable diff. Generated by ESLint.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Prettier would do this anyway, but it’s separated out for a more
reviewable diff. Generated by ESLint.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Prettier would do this anyway, but it’s separated out for a more
reviewable diff. Generated by ESLint.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
The stream_events tests were kinda messy, but
I mostly just consolidated a few sections of
code so that we didn't have to keep
re-stubbing the same functions.
For the actual code, I extracted add_sidebar_row
and then removed the unnecessarily complicated
jQuery trigger mechanisms.
When we redraw the left sidebar, we need to tell the
topic list to clear its data structures (and do other
stuff like hiding its popover), since we are clearing
its parent container.
The commit f0e18b3b3e
introduced this regression in late January 2020.
That commit made topic_list use a vdom to avoid
unnecessary updates. Before that, topic_list did
a lot of brute-force redraws, which covered up the
fact that we weren't having stream_list telling it
when the rug was being pulled out from under it.
The boundary between stream_list and topic_list
has always been kind of complicated code, since
topic lists get embedded into the stream list.
The main interactions, though, are basically:
* topic_zoom.clear_topics() - you're leaving
a narrow that may or may not be zoomed
* topic_list.clear() - you're about to redraw
stream items in the unzoomed stream list
* topic_list.rebuild(stream_li, stream_id) -
you're building or updating a topic list
for the newly active stream
Fixes#14465
The _.each calls with an inline function expression have already been
converted to for…of loops. We could do that here, but using .forEach
when we’re just reusing an existing function seems like a good
guideline.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
We avoid complicated code to update unread counts
by just using vdom.js.
One small change here is that if click on "more
topics", we replace it with the spinner instead
of putting the spinner after it. This saves us
a redraw under the new scheme.
This is relatively unobtrusive, and we don't send
anything to the server.
But any user can now enter blueslip.timings in the
console to see a map of how long things take in
milliseconds. We only record one timing per
event label (i.e. the most recent).
It's pretty easy to test this by just clicking
around. For 300 users/streams most things are
fast except for:
- initialize_everything
- manage streams (render_subscriptions)
Both do lots of nontrivial work, although
"manage streams" is a bit surprising, since
we're only measuring how long to build the
HTML from the templates (whereas the real
time is probably browser rendering costs).
The only thing get_color() does is look
up a sub:
exports.get_color = function (stream_name) {
const sub = exports.get_sub(stream_name);
if (sub === undefined) {
return stream_color.default_color;
}
return sub.color;
};
So if we have a sub already, there's no point
calling the helper.
Obviously, this isn't a huge deal, but it happens
N times during page load.
Anders Kaseorg
Steve Howell
Aman Agrawal
Suyash Vardhan Mathur
sahil839
Steve Howell
Anders Kaseorg