Now we just update the whole row any time a sub
changes. This prevents a whole class of bugs.
As the TODOs indicate here, some of the post-processing
that we have to do on rows after rendering the
template will soon go away.
I audited all the functions in stream_ui_updates and
added TODO comments to functions that are clearly just
updating rows in the left panel of Manage Streams.
In an upcoming commit I will simplify the approach so
that we just re-render the entire row.
The tooltips for the left panel of stream settings
have been broken since November 2018 due to my
commit 8f915da2ca.
The code prior to 2018 was restoring tooltips
right inside the loop where we were detaching
the row from the DOM to put it back into the
DOM at another place. And then I tried to
just add them in bulk, forgetting that I was
in the middle of all the DOM manipulation (and
hence my selector for the loop was a noop).
Also, I don't think we've ever had them for live
events that add streams. (I fixed that too.)
It's not clear to me that this code is actually
necessary, as we get hover help without
calling $(...).tooltip(...) properly.
This is probably why we didn't notice any
breakage when we merged my 2018 commit.
Checking for the button was a brittle way to do this.
Note that the code on master is flawed insofar as
we don't respect the search filters. I don't fix that
bug here. This is a tactical change to eliminate
another function.
Upcoming changes will make it so that all the bugs
related to "notdisplayed" will simply go away.
We just want to reset the scrollbar here, which
we still do via ui.reset_scrollbar.
You don't want to preserve scroll position if
you are filtering or re-sorting.
We have long had this annoying two-pass way of building the
DOM that I am trying to eliminate.
The function names that I introduce here describe the current
situation more accurately.
In passing I make it so that we only throttle redraws when
users are actually typing. Using a throttled redraw when
you click on the sort icons is at best unnecessary, and it
may actually aggravate double clicks.
Fixes the sorting button labels in stream settings, which were
regressed by commit f8fbae4d8e (because
the HTML was not marked as being HTML).
Signed-off-by: Anders Kaseorg <anders@zulip.com>
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.
This removes a bit of complexity. If a piece of
settings code needs to render a stream with
subscribers, it just asks for it.
We no longer have the brittle, action-at-a-distance
mechanism of mutating the subscriber count on to
the stream_data version of a sub.
Stream subs are pretty small, so making copies of
them is cheap, and the blueslip timings from the
previous commit can help confirm that.
There is some discussion of putting `subscriber_count`
on the Stream model, which may eventually get us
away from tracking it in `peer_data.js`, but we will
cross that bridge when we get there. See
https://github.com/zulip/zulip/issues/17101 for
more details.
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>
".stream-info-title" selector is used to hide both
"#add_new_stream_title" and "#stream_settings_title"
classes. This will be helpful when we add new html
elements to display in the title area..
`clear_edit_panel` can be removed as the next line to
where it is called makes it redundant, we only need
to de-select the stream row, as done in this commit.
Since the subscriptions container contains multiple toggler components,
it is helpful to know that the function's tab key returns all the active
tabs in the page (currently there are 2). Thus `tab` is changed to `tabs`.
Also, which togglers tab data is being used has been made more specific.
Anders Kaseorg
Steve Howell
Priyank Patel
Ryan Rehman