Since they can't be parsed, probably the best thing to do is to send
the user to the home tab; we could add in showing an error message but
then we'd need a way to clear the error message -- better to just have
this work.
(imported from commit 67c0475ff06eb0431621eef60b9c50287a158232)
This is required to get historical messages that might be within the
message ID range of your home view.
I think we could avoid calling load_old_messages on every narrow by
tracking when the user last subscribed to each stream, and if the user
subscribed before the first message in the current home view message
window (aka the messages used for the fast-path narrowing), don't call
load_old_messages. This would happen almost every time. But it would
require a schema change to do this.
We also remove the load_more_messages call from hashchange.initialize.
It is no longer required now that we're calling load_old_messages on
each narrow anyway.
(imported from commit 1c78c183e61392429592ae89d566315be7be8999)
I noticed that on chrome, calling narrow.deactivate() actually ended
up calling itself recursively due to the hashchange code not correctly
handling the fact that in Chrome if you set
window.location.hash = '#';
and then read out the value, you get '' back out.
(imported from commit 9b5047fbe0e2ac1846e5325d066c72306634c523)
What was happening is that if you un-narrowed immediately after
receiving a message (e.g. because you just sent it), the autoscroll
animation from the zfilt table would still be running after you return
to the home view, resulting in the viewport being scrolled to an
apparently random point in the home view (even though the pointer was
still in the right place).
This cancels the autoscroll animations whenever you do one of:
(1) hashchange (e.g. to go to the settings page)
(2) select a message (covers narrowing/unnarrowing as well as keyboard hotkeys)
(3) mousewheel scroll
since those are basically the cases where we set the viewport
scrolltop directly.
Arguably this should instead be something where we somehow detect
which scroll events are triggered by what and cancel for any scroll
event not from the animation or rererendering, but that seems hard.
(imported from commit f776021303404c87b36241c733b3d1bcb083163b)
I generally don't like this sort of state variable, but I don't see a
better solution. The codepath is that when you start out on the
subscriptions page and then click one of the left sidebar links to
narrow to something:
(1) hashchanged() would call ui.change_tab
(2) ui.change_tab triggers a gear change event
(3) The ui.js gear-changed event handler updates the hash
Resulting in the hash ending up at "#". Since there's no easy way to
pass arguments through to the event handler, we just use a global
variable inside hash_change.js to track whether we're currently
handling a hashchange event.
(imported from commit 7bb905a223b5539240fc36de7896ee8074ebc62e)
We previously had 2 mechanisms for narrowing used by the left sidebar
-- the top few links used the hashchange mechanism, while the streams
links used a custom click handler. Both were buggy -- the hashchange
one hadn't been updated to just select the first unread message,
whereas the click handler didn't change tabs.
Fixes#1141.
(imported from commit 8a8af974e78cc5c33937ac0078f04a9b5452b94a)
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)
We suspect that these seem to be causing a regression where scrolling
in narrowed views gets really sluggish, but we haven't totally been
able to figure out why since it's challenging to reproduce locally.
(It currently manifests itself on staging but not prod.)
So for now we'll back them out. Here's the full set of things:
Revert "Cause update_floating_recipient_bar to get called less frequently."
This reverts commit a6c1518c4001a2dde44d7b512236795da3ccd351.
Revert "Remove double-scroll in un-narrowing code."
This reverts commit 3dde6c27ffa1e8afa1a084b1b2baee3bc0512962.
Revert "Reset our scroll position if we change our hash to "#"."
This reverts commit 925b44d770c96dafaabebc9e0114f9a3b8f53c4d.
Revert "Properly update floating subject bar when you are at top of page."
This reverts commit 6633cc8a81aedcbb31b30d7c1f27816f8808c700.
(imported from commit a273730581cef30c33bedf701659ee084434f8ad)
Changing the hash to "#" causes Chrome to jump to the top of the page
on Mac OS X. This commit doesn't actually fix any bug, but it
is necessary for my *next* commit, where otherwise you'd have to
ensure that the scroll code came *after* the hashchange code.
(imported from commit 925b44d770c96dafaabebc9e0114f9a3b8f53c4d)
Tim Abbott
Jeff Arnold
Zev Benjamin
Keegan McAllister
Waseem Daher