Addresses a complaint brought up in our usability study.
We now hook into the "show" event on .subscription_settings elements and
do some obnoxious math to move the scrollbar the way we want.
Closes trac #1015.
(imported from commit 5d9cee1ffc242eb7b743fdccd2bd76bf0a7ba060)
This is in addition to only successfully reporting a given error once
per session. Previously, if an error was triggered many times before
the ajax call to report the error returned, we'd end up making many
ajax requests to report the error.
(imported from commit 559179e3c8c3fbf03bbb091a67361d447c80b7bb)
We made this change for performance reasons that don't exist now that
we only render a small portion of your messages, and it causes a
distracting flicker when you scroll through messages slowly.
(imported from commit 33379320f6b90d93ec8beac17323b287f8bb2485)
Those examples make the tutorial feel much longer, and they aren't
relevant to people who aren't using Humbug to talk about code.
(imported from commit c3213775d26cf533b3d9bde691de08a53d427939)
It's not so black and white in a world where we auto-scroll at the
bottom, and we've observed that people trying Humbug over-focus on it.
(imported from commit 2057643f179d5d1666cb33438c5a513977197b37)
This is required if the stream has unread messages in it
(from a previous subscription period). Otherwise the
unread count will be 0 until reload.
Fixes Trac #1117
(imported from commit 8f3d78eb52fdecb52456b0037cc89665c9027fbc)
In Firefox, prevents e.g. a slash in a stream name, which we wanted to store as
%2F, from converting back to a literal slash.
There is some appeal to normalizing the URL fragment after parsing, but in
general this way seems better. It may decrease page load time on narrowed
views.
Doesn't yet fix#826; the URL is correct but the narrow is still wrong.
(imported from commit 32e3fa9e968139863f34b9698f1c8b39d06f0c14)
This was biting us before when the user would leave a narrow before a
get_old_messages call associated with it finished. Specifically,
search.maybe_highlight_message() would assume a message was in the
DOM when it wasn't any more.
We also have to hide the 'loading more messages' indicator when
reseting the 'load more' status because otherwise it wouldn't get
hidden like normal in the load_old_messages() continuation, causing a
load_more_messages() not to fire when re-entering a narrow.
(imported from commit 4a136dd01305b039c0970f897b07e603b87d5d8e)
If the user scrolls super fast, our scroll handler might not catch
the user passing by some messages.
(imported from commit 14cebffcd1321f02443971ac5e1c922db19648ab)
We create a circular reference between handler functions and our
wrappers for them so that we can pass the wrapper to jQuery.off when
users pass the original handler to us. This reference-counting
system can't break all the circular references we create because
users can unbind event handlers without explicitly naming the
handlers they want to remove (they can remove all bindings on an
element, for example). For now, we hope that this memory leak isn't
too bad.
(imported from commit 9615b5761b4b09ca7ca52c0d847e9b83330373fa)
Previously, we couldn't actually unbind some event handlers. The
problem was that when a user called $.off(events, handler), the
passed handler wouldn't match any that were actually bound because
the handler that was actually bound was our wrapper.
This bug specifically caused the handlers for our idle timers to
never be unbound, effectively never cancelling them.
(imported from commit 48efac954994a05c356d326e64a78ab0ace9fe3e)
We will need this for removing event handlers. This will
unfortunately create a memory leak, but we'll partially deal with
that later.
(imported from commit e439cb44d245e16d2254d1be053b68015a1f4c79)
Previously, if for some reason pointer updates were not returning from
the server, the client would resend its request every second, rather
than waiting for the previous request to fail before sending a new
one.
(imported from commit d134adc50aabd135c7631913fecab3519aca6640)
It's closer to a presence query than an update, and more importantly
this moves this out of Tornado -- previously Tornado was spending at
least 3ms per recipient on messages sent to the MIT realm fetching all
this data to return back to users. This should save around 100ms per
message sent to a popular stream the MIT realm -- but more
importantly, each such event is 100ms during which Tornado is not
processing other messages.
(imported from commit 134169f0fdcd9f6640fda957edc4a28b07783d8e)
We also needed this when rerendering on append, so moving it into
_maybe_rerender allows the two places to share the code.
(imported from commit 027d99cae7864747cf1ec94c95e8ece495b5c907)
