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.
This avoids a stream having potentially near-infinite height when
opened in a stream with a large number of unread topics; the benefit
is that you can easily access the next stream.
We show an unread count next to "more topics" to make it hard to miss
that there might be more, older topics with unread messages.
With CSS work by Anders Kaseorg.
Fixes#13087.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
This commit was originally automatically generated using `tools/lint
--only=eslint --fix`. It was then modified by tabbott to contain only
changes to a set of files that are unlikely to result in significant
merge conflicts with any open pull request, excluding about 20 files.
His plan is to merge the remaining changes with more precise care,
potentially involving merging parts of conflicting pull requests
before running the `eslint --fix` operation.
Signed-off-by: Anders Kaseorg <anders@zulipchat.com>
With webpack, variables declared in each file are already file-local
(Global variables need to be explicitly exported), so these IIFEs are
no longer needed.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
We have had a longtime bug where the state of pinned streams would not
update properly from the greyed out/inactive state to the active state
when a first message arrived to them.
After some discussion, we determined that likely the right fix for
this is to simply configure pinned streams to never be marked as
inactive; that's more in line with the intended user experience.
Fixes#8201.
perfect-scrollbar replaces both the appearance and the behavior of the
scrollbar, and its emulated behavior will never feel native on most
platforms. SimpleBar customizes the appearance while preserving the
native behavior.
Signed-off-by: Anders Kaseorg <andersk@mit.edu>
This fixes an issue where closing stream search was not working if
user had not entered a search term and tried to close the search box
by clicking on the close icon; the problem was that we'd end up
re-opening the widget immediately after through event propagation.
Fixes: #11636.
We want the search widget, when visible, to be
outside the scroll container for the stream list.
One obvious use case is if you start scrolling, and
then realize it might be less effort to search.
Also, for user search, it already worked this way.
We have to add a couple resizing hooks here, but
it's not necessary to change the actual resize
calculation, since we move the section inside
of #streams_header, which is already accounted
for.
The only markup change here is to add
a `stream_search_section` class. I don't
know why we use `notdisplayed` here instead of
jQuery, or what `input-append` is for, but I
considered them outside the scope of this change.
We can also remove some crufty CSS that was
compensating for it being inside the container.
The stream_list test that was fixed here was sort of
broken. It accomplished the main goal of verifying
what gets rendered, but now the data setup part is
more like the actual app code (and simpler, too).
This small modules nicely breaks down the
responsibilities of topic_list and stream_list
when it comes to zooming in and out of topics
(also known as hitting "more topics" or "All
Streams).
Before this, neither module was clearly in
charge, and there were kind of complicated
callback mechanisms. The stream_list code
was asking topic_list to create click handlers
that called back into stream_list.
Now we just topic_zoom set up its own click
handlers and delegate out to the other two
modules.
Anders Kaseorg
sahil839
Steve Howell
Steve Howell
Anders Kaseorg
Tim Abbott
YashRE42
Yashashvi Dave
Aditya Bansal
Anders Kaseorg
Thomas Ip
overide