Create our own objects for handlebars, so that we can add transient
flags like is_zero without worrying about side effects to other
code.
(imported from commit b351a369cb3f36233e108e270c7abdd4ab8c5860)
When we call rerender() on MessageList, it is usually because
something big has happened, so it's reasonable that the pointer
may now be invalid. As an example, the old pointed-to message
may been removed from the home view. We have always just
moved the pointer under the hood, but now we do it in a way
that doesn't generate spurious blueslip errors.
(imported from commit d399a101f36b744a423ea7da80dda8352440c6c9)
There is a scenario where we call process_read_message()
for a message that we haven't recorded as unread before.
I'm not sure how it happens, but I put back code to
guard against crashing. The regression happened in
5752458c821.
(imported from commit 5ce15d2e236b738b445ed88f1733aa0612be0ff3)
This fixes a blueslip error where we were trying to add the same
message into a MessageList twice. Muting complicates our duplicate
detection, because empty() can return true even when we already
are storing messages that just aren't shown (because of muting).
The name empty() should probably be fixed in light of muting,
but filtering with self.get() is not really a problem here.
(imported from commit 83b0890471c9a0aa21996f3d0d3be4a238f23e65)
We have been persisting muting preferences on the back end for
a while, but we haven't been adding them to page_params for the
client to have at reload/startup time.
(imported from commit d9ca68aa0e4d22bfb0e6ce67fc0bc63981175c8b)
With the muting/hiding features, it has become the case that
this._hash can have entries that don't map to actually visible
rows, so this.get() can return true on an id that shouldn't
actually be selected, causing downstream code to explode. Now
we call this.closest_id() regardless of whether the hash is
populated, to be safe, but then we still call blueslip.error
if the pointer moved.
(imported from commit 348e8ff67ce3a6d61aaeb31f80549386518af2d0)
If you have two browsers open for the same account, muting in one
browser will now be reflected in the other browser. This got
regressed when changing the approach from collapsing to hiding.
The new code should be less brittle, as we encapsulate re-rendering
in muting.rerender().
(imported from commit 4e65e265b64513d38f518770453b7436cb92b4ca)
Update get_counts() so that it ignores counts for muted topics
when calculating stream/home unread counts.
(imported from commit 9b4e4da4346c225c535e97d709d3dee032603cc5)
The indirection was more confusing than helpful, especially
since the function had side effects, despite its getter-like
name.
(imported from commit 85d9cf642b4177f62488136f0e0f7f6c9304942e)
After killing off unread_counts.stream, the only field of
unread_counts was "private", so I just made unread_privates.
(imported from commit 9678f5b03524afb883ec4fa638b059e698888e78)
The prior commit makes it so that we no longer use unread_counts.stream
in get_counts(). This commit removes the code that updates the
data structure.
(imported from commit 5752458c8212bf02cf9c8733ce349fc35b204a9b)
These two data structures are kind of redundant:
unread_counts['stream']
unread_subjects
We are deprecating the former. The latter is more flexible for
features like muting.
Now, in get_counts(), we compute home counts and stream counts
in the same loop that computes subject counts.
(imported from commit c8d0ea12a56d0128811e0aa165de9882546906a5)
We are still showing the same data points, but the logic to drill
down on details for a particular realm is now all server side,
not client side, and we are smarter about omitting fields. In
summary mode, we don't show empty Name or Email columns. In
detailed mode, we show the realm as a headline instead of a column.
In this version you do lose the ability to see all system users in
the same view, but Waseem is ok with this.
(imported from commit edd2e646ab4cf5783ea64232d0cd621debece8d4)
When you load the activity report, it will just show summary
counts for realms, but if you click on a realm, you will see
details about users in the realms. You can also click "Show all"
to see an interleaved view of realms and users.
(imported from commit b106557b1fae64d525071afc124b5a8aed319086)
`Cannot read property 'flags' of undefined` in the
_.each callback in expand_summary_row.
Messages loaded when you scroll up in a narrow are not added to
all_msg_list. Because the user just clicked the message, we know
the message is in current_msg_list, so use that instead.
(imported from commit e76449a2a2748b96f69a2ab05d288b708d9e3ac0)
Instead of collapsing muted messages, just hide them altogether
in view where it makes sense to hide them.
(imported from commit 1c2c987ff302ceb135a025753cf421b4de1aea71)
I moved code into MessageList to further encapsulate details
of filtering. The MessageList instances should be their own
gatekeepers for what messages they care about.
(imported from commit ee6cd7f6eabf97962d724a05d7d0b0a3e6ab19e5)
Warn inside these functions when you get data on streams that you
are not subscribed to:
add_subscriber
remove_subscriber
user_is_subscribed
The back end should be smart enough not to spam us with subscriber
info that we don't care about.
(imported from commit b27644be2abc37c11ddff884ef392ea208bd1bd3)
The first menu option supported is to narrow to the topic.
The chevron only shows up if you turn on feature_flags.muting.
(imported from commit 17482f538a6d3e4ff96a36c042bad972d34f4b11)
Use the stream_data API to set up subscribers, so we don't
leak the data structure details into subs.js
(imported from commit e95616f2eb535ecf0e1cef35a143a71ad88de5bc)
This was requested by CUSTOMER28 and would also bring symmetry with
the user sidebar, which already does this.
(imported from commit 4dca3c957d3a710f00bbb34a7cd7dfe6074da8f7)
Though this should not be common, getting a peer subscribed/
unsubscribed notification to a stream we don't yet know about should
not be fatal
(imported from commit ee28b163e0efc9adfad31e1b321e986dfe56271e)
We create a blueslip error for undefined keys in Dict. This led
to a straightforward change in the unit tests for Dict. For the
unread test, to avoid the blueslip error, we had to be more specific
in setting up a user in one place, but this reduced our coverage,
leading to another small test being added.
(imported from commit 33e14795500d9283de2a7c03c4c58aec11cea4b8)
The exceptions were cryptic before, and they were inconsistent with
the fold_case: false behavior.
(imported from commit a40704d1a22bcdc60d91be832ee3c81eb416c6dd)
These engagement data will be useful both for making pretty graphs of
how addicted our users are as well as for allowing us to check whether
a new deployment is actually using the product or not.
This measures "number of minutes during which each user had checked
the app within the previous 15 minutes". It should correctly not
count server-initiated reloads.
It's possible that we should use something less aggressive than
mousemove; I'm a little torn on that because you really can check the
app for new messages without doing anything active.
This is somewhat tested but there are a few outstanding issues:
* Mobile apps don't report these data. It should be as easy as having
them send in update_active_status queries with new_user_input=true.
* The semantics of this should be better documented (e.g. the
management script should print out the spec above)x.
(imported from commit ec8b2dc96b180e1951df00490707ae916887178e)
people_list and people_dict include the feedback bot and anyone you've
cross-realm PM'd with. Useful for autocomplete, but not for admin and
stream settings views.
Fixes the UI part of Trac #1772.
(imported from commit cdefd4e86980447aad5190e7fc8ae3666d66e3c3)
hashchange, which calls admin.setup_page, runs in another onready
event handler before zulip.js main().
(imported from commit 5d4e71f4666baf0a53e3fe9804561ce6cdc06261)
This is feature-flagged to staging only.
There are basically 3 parts to the implementation:
1. In response to typing, fade/unfade the user list.
2. When a compose is aborted, unfade all users.
3. When the presence list is redrawn, fade/unfade the user list again.
(imported from commit cd416de232849a9f69dcacdc8b0fcfc20e3848a2)
This is the last step in getting a consistent client-side picture of who
is on a stream (provided non-MIT realm, and provided the local user is
subscribed to that stream).
(imported from commit 8bca722f169860ad4c1c92fdcb70d62c60f70fed)
This fix required upgrading to 1.1.17, but it's not squashed
with the upgrade, because that would complicate keeping the
copyright-fixing commit separate from the upgrading commit.
The new version of the plugin makes it so we can trigger a
resize event, but it's backward incompatible with our old
compose box code.
A minor cleanup here is that we also don't trigger a resize
right before hiding the compose box.
(imported from commit 6b0cb9ccd2ddef919fd375a80cfca535b5b74c0f)
If the date_row is between two messages, it tells you when the message
below was sent, but not when the message above was sent--for that you'd
either have to click on a message or keep scrolling up. This is especially
annoying when there are sometimes gap days on a particular stream (you shouldn't
assume that the message above is simply from the previous day).
This adds the date of the previous message (the time above) to the date_row.
(imported from commit 4c6c956118ae09fedca042e797a6029fdd26e00c)
When creating a new stream, this option lets you announce its
creation to everyone who you didn't explicitly add.
(imported from commit ae4140b4268b73e8b4bb54f5a6eea12fe07cd110)
Leaving the feature flag in in case certain realms don't like it,
so we can easily blacklist them from this feature.
(imported from commit 2a5884008be05216d195a582a327d7641bc419d5)
Previously, narrowing would only work from recipient rows, not
other message table rows (e.g. summary rows). This led to the trap
that you could add a narrows_by_recipient class to an element,
expect that narrowing would work, but the actual handler would
break or silently fail if it weren't part of a recipient row.
Now the click handler looks for the closest table row (tr). It's
encapsulated in rows.get_closest_row(), so if we go to a
non-table-based design, it should be easy to address in one
place.
(imported from commit e116b7573c4bb06599ced84a0adcf8dc23d63593)
This fixes a bug (hit by a branch of mine) wherein you could not
render Handlebars templates from a DOM-ready callback in a file that
came before templates.js alphabetically.
(imported from commit 48091d016776eb6f12d33db199781e776af18fc5)
In particular:
* Pull the count containers out of the containers that cut off overflow text
* Make them lozenge-like
* Add logic for shortening the overflow container when a count container is
present
(imported from commit a2b3d237cbfe4fadfbbc3a931d2de85dfba10d04)
This shows up when you're not running a Zephyr mirroring bot and lets
you use Webathena to have us run it. Obviously needs more docs.
Current problems include:
* supervisorctl reload ends up recreating /var/run/supervisor.sock
with the wrong permissions, so it only works once in a row before
you need to chmod that.
* /etc/supervisor/conf.d needs to be humbug-writeable; this is a clear
local root vulnerability
* This uses SSH and thus is kinda slow.
(imported from commit 7029979615ffd50b10f126ce2cf9a85a5eefd7a2)
This brings several improvements:
* The Dropbox script won't slow loading our app.
* If it fails to load, no traceback; Dropbox link just won't appear.
* For users with Dropbox disabled (most at this point), no loading at all.
(imported from commit e71ae5790fc85a185e622bdafb350109527b4eee)
The setdefault() and num_items() methods are handy, and it was a
little tough to keep track of which objects were Dicts vs. {}.
(imported from commit 6ca81ac411943c59bef6d6bae39c7641feb5574b)
The click handler for collapsing was too broad, and it overrode
the ability to click to narrow from the recipient bar.
(imported from commit feeaa9becf8e400e319e1a77e5b72a33bb22854c)
Specifically:
* Add and style the sidebar toggle button to the header and remove the
gravatar.
* Add the logic for retracting the left side bar.
* Modify the logic for clicking on the referral pane to prevent it from
closing the sidebar.
* Modify the logic for clicking on the stream filters to prevent them
from closing the sidebar.
* Modify the logic for clicking on the stream settings dropdown and the
user info dropdown to prevent them from closing the sidebars.
(imported from commit 73e00eb834a6e87cb8d659fdcf6c2e06fff3731d)
This is experimental, for staging only. There might be a better
way to model this than dueling force_expand/force_collapse flags,
but it works for now. The code in collapse_recipient_group()
could also be DRYed up relative to expand_summary_row().
(imported from commit 107151d1ecd640970fb7700d41278a003bd1abaa)
This is to set up collapsing, but I think they could be useful
in general, so I'm keeping this is a separate commit.
(imported from commit 0da2b8ef246649f678c7cb6664ee78bf36aca076)
(The approach has been simplified to look for summary_row in
the DOM, which makes muted and summary features work off the
same code.)
(imported from commit 4fa3d6ae5ad7bbac5958e60ecffb368d6ef29d2e)
As part of this commit:
* Add and style a top right button that controls the sidebar
* Add the necessary styles for the right sidebar when it's in that mode.
* Add the logic for controlling the sidebar expansion
* Modify the logic for prevent default click events to generally
hide popovers correctly.
(imported from commit ca8063f6c62b436799f952e88541ff0ae8ba85fe)
This change will allow us to test the muting feature on
staging. Any topic named "muted" will automatically be
muted. You can also mute any other topic on the console:
muting.mute_topic('devel', 'ios');
current_msg_list.rerender();
More UI around this experiment will be coming soon, as well
as support for muting entire streams.
The muting module keeps track of which topics are muted, but a
user can expand muted messages, and once that happens, the
messages are marked with the "force_expand" flag that gets
persisted to the back end.
Muted messages are rendered in similar fashion to the summarized
rows, and as part of unifying some of that code, we have
made it so that expanding a summarized section doesn't remove
individual flags related to summaries; instead, the messages
get the force_expand flag set.
(imported from commit acee4190e63813d46850415c41ff8ebfae4a6953)
The old API took a dictionary; the new function works for one
person at a time, which allowed us to clean up the calling code
in ui.set_presence_list.
(imported from commit 0ae9d01491238d32915572c7efebf476d05fed4b)
I regressed this recently, thinking that all our operators are
strings, but I forgot about the "near:" operator used in the
"Narrow messages around this time" feature. The user facing
symptom was that the search bar showed up empty instead
of saying near:50, which might actually be the better
behavior, but it certainly was not intentional. :)
(imported from commit fcb93cecbe9a052bb9bc1af7fcac5aecaba5aafb)
I'm trying to move well-isolated methods out of narrow.js, so that
narrow.js is more strongly focused on UI/ajax interactions and
big, heavy lifting stuff. The logical home for parse/unparse
seemed to be Filter, and they brought along two private methods
with them. The big code moves involved trivial follow ups
like s/exports/Filter/.
(imported from commit ace0fe5aa1c7abce0334d079ba9eb8d9a57bd10f)
Have ui.set_presence_list() only touch the presence list.
Before this change, it was calling update_unread_counts(), which
has a bunch of side effects unrelated to the presence list.
(imported from commit 690f754d78874a03fa36f8ff8765d5a63e431d28)
This was broken in two ways:
1. Commit ad59d6f78042ce89, "Make the left sidebar and right sidebar
more consistent", pushed last Monday, changed the markup for the right
sidebar without changing a selector in stream_list.js that was looking
for the old markup.
2. Even then, whenever new user presence information came in, we would
rerender the user list and blow away the unread counts. This commit
patches around that by updating unread counts after rendering the user
list. I'm not sure what broke this or how it was working before.
(imported from commit 53ed40139e257e44411e918d1ecdce3a49e9ee51)
Trac #1479
All our typeaheads use this, but I made it an option that must be enabled
explicitly since it is not default bootstrap behavior.
(imported from commit 97852dc407d1f6dbe46b5fdd2c56d3ed8c6718d2)
This is like Python's dict.setdefault. I don't love the name, but
the consistency is nice.
We have lots of places where we do things like:
if (! dict.has('foo')) {
dict.set('foo', []);
}
var arr = dict.get('foo');
arr.push(3);
We can now write:
var arr = dict.setdefault('foo', []);
arr.push(3);
(imported from commit b8933809c69ba47ec346ed51d53966793403e56c)
This helps make our statuses more meaningful and should resolve trac #1534.
As part of this, we lower OFFLINE_THRESHOLD_SECS to 1.1̅6 minutes and
mark the user as idle after 5 minutes.
(imported from commit ee6b1ad203554a84b11e16c4c6195be9df5bcf4f)
This was caused by a branch I was working on conflicting with the
stream_data.js split.
(imported from commit 995dcf1412114bd36404b8c7ef66eb6f1e89648a)
keys() and other methods that implicitly return keys return the
casing used for the most recent set()
(imported from commit 47cac13c2b928fd19b07c44fd1504426fb36e3d8)
This means that we no longer need to unmunge keys at the expense of
having to store the original key.
(imported from commit 958c33c806b8b399e9a9290e4f14ef119d923c14)
This changes the mit.edu access rules from:
* Susbcriber list and inviting users to streams are unavailable
to
* Susbcriber lists and inviting users to streams are only available
for invite-only streams
streams must still be made invite-only manually.
This both cuts down on the amount of code that is different between
the mit.edu user experience and the standard one, as well as paving
the way for us to invite-only streams for zcrypt.
(imported from commit 24e0e85428608c05c89eeea349338dd392e5489a)
The function narrow.unparse() is used in a bunch of places in
the search suggestion code, and now it no longer lower cases
operands. This change contributes to fixing trac #1659.
(imported from commit 6b44b8a818482b5c8b4f9a45bc7d3a9d21e04eba)
Streams are converted to their "official" names now.
Topics are not canonicalized at all.
All other operands continue to be lowercased.
Since we don't lowercase stream/topic at the parsing stage,
we have to modify the predicate function to do the lowercasing
of stream/topic to enable case-insensitive comparisons. This
is slightly more expensive. The server-side predicate
functions are already case-insensitive.
(imported from commit 286f118c6c3ff9d23b37c7f958cab4c0eacd5feb)
This can be squashed with the prior commit or subsequent commit,
or it can just stand on its own, but it's part of transitioning
to a functional change in the next commit.
(imported from commit 155a0cdd28f851810fbedfef1a306e3190bf1c34)
If we have a stream named "Denmark" and we're narrowed to it,
then use "Denmark" as the default stream name in the compose box
even if the narrow operators are lowercase.
(imported from commit e9f06b7307c73231aa887dc95849e0307984e6f0)
This function returns the stream's actual name, if we can get it;
otherwise, it's the identity function.
(imported from commit 7a981adba9632d6c6eba54cb6514a9226d1e83e8)
We had a duplicate and incorrect check on if a stream was in your home
view, which caused us to not display Home unread counts in the sidebar
/ notification bar / Dock on page load.
(imported from commit db27cf9091f8b47200b025f03a26c4fe82701882)
Users were getting confused about why the unread count in the sidebar
/ notification bar / Dock was different from what the bankruptcy modal
said, so only show them the true server count until they've made a
decision.
(imported from commit 71d376cd4a85749ccf49936b251e6b8ac21361b7)
This change would allow anyone in the realm to set a topic for a "no topic"
message. As soon as the message topic is set, only the sender can change it again.
(imported from commit 0a91a93b8fd14549965cedc79f45ffd869d82307)
The new implementation makes add_topic() be O(1). We incur
the cost of sort() in topics_seen_for(), but that's only called
in the typeahead widget, and I think the typical number of topics
should be manageable here.
(imported from commit 0e332301b2e44b4465bf7a1d93ae525a8d17a6b6)
This partially reverts d3c28b17859cacd49b7db9f8784d4b8b9069e1ff.
It is necessary to call update_floating_recipient_bar from _fade_messages and
_want_normal_display because they are called after opening/closing the compose
box. There is no scrolling there, so it is not otherwise updated. It is not
necessary to call from update_rendered_messages as it is not called on
changes of the fade state.
Related: Trac #1682
(imported from commit e2528f8c8827b7e2a135d7fc2b53e9e8162799b0)
I haven't filed an issue about this since I just quickly found and
tracked down the bug, but the STR were:
1. Subscribe to stream foo
2. Hide foo from your home view
3. Unsubscribe from stream foo
4. Unhide other subscribed streams you've hidden from home view, if any
The "All messages" link would stay, although it should go away in this
case. The apparent cause was an incorrect assumption (when implementing
this feature) that the stream_info dict only contains subscribed
streams; in fact, we also populate it with streams you used to subscribe
to.
(imported from commit 67f95c8c8a211a4943a2de394919d15a0d5435d0)
Specifically:
* Remove min width setting for the main div as it is no longer necessary.
* Change max width for the app to 1200 and adjust top margin on the message pane
(imported from commit 846dd3dcd7798efa615e15c61681b0ab7465f5e3)
Once you enter a view, the last n messages will be exempt from
summarization, to give the users a little more context. Any
subsequently arriving messages will also be exempt.
We will try n=5 at first.
(imported from commit 3e6fe58109e692389bf02dde2230d788b5818d52)
For web pages, the initial favicon is the same as the favicon we
set for no unread messages and the initial page title is the same
as the page title we set for no unread messages. However, for the
OS X app, the dock icon does not get its badge updated on initial
page load. If the badge icon was wrong right before a reload and
we actually have no unread messages then we will never execute
bridge.updateCount() until the unread count changes. Therefore,
we now ensure that bridge.updateCount is always run at least once
to synchronize it with the page title.
(imported from commit 5d1269c62c1c3190aea96ef6f96c46acdb9fdf9c)
Dict.each() allows to iterate through values and keys of a Dict.
The callback function is passed value as the first parameter to
be similar to _.each()'s calling sequence.
(imported from commit e745e8b5d2f167b8b8acf7542b767494e354b037)
This fixes#1682, a recent regression that came out of
a5a47e13fc9d, which introduced the update_rendered_messages()
function in compose_fade.js. The original implementation
was finding the table row for a message, but not the table
row for its recipient bar. Now we style both elements.
(imported from commit a9628df0b03f79a24dfa68f4f2061eda2ca8ecea)
The calls to ui.update_floating_recipient_bar() were brought over
from compose.js, and it turns out they just complicate scrolling,
since we already call the function in the scroll handler.
(imported from commit d3c28b17859cacd49b7db9f8784d4b8b9069e1ff)
See trac #1676. Topic autocompletes were case insensitive
w/r/t to topic itself, but if a stream was called "Denmark"
but the compose box's stream field had "denmark", then we
wouldn't suggest any topics.
(imported from commit c8296c166115bb96023026da212f73a243432305)
Move zulip.subject_dict into composebox_typeahead.seen_topics,
and encapsulate the use of seen_topics inside composebox_typeahead
with add_topic() and topics_seen_for().
(imported from commit 2bc2d1714fabdc07a661cbf815d14b36a08990e2)
This lets us avoid popping up a separate browser window (which would
not currently work in the desktop app).
This closes Trac #1673.
(imported from commit eb1990d8021600fc4d3870f6ec3a28f7111036c3)
This resolves trac #1675, without introducing the problem that
caused us to set the immediate flag in the first place. (Some
commits just prior to this eliminate some slowness with rendering
by taking the debounced function out of the code path.)
(imported from commit 8c72f25a9d5eb38376957f222b9413d3167fa386)
These calls were expensive and unnecessary. We already update
fade/unfade classes deeper in the call stack, when we render
the messages inside message_list.js.
(imported from commit 08fe028462b6d4569d9798a290dd7b26eb21fb01)
The call to compose_fade.update_faded_messages() in message_list
caused us to traverse every message in the current table, which
was extremely inefficient. Now we call the newly created
compose_fade.update_rendered_messages(), which only fades/unfades the
messages passed in as the first parameter.
(imported from commit a5a47e13fc9daeedd0899b2cfb02beb3f6b8cd0a)
e.g., from a comment in the commit:
// Execute the conditional code if all conditions are true.
// Example usage:
// {{#if_and cond1 cond2 cond3}}
// <p>All true</p>
// {{/if_and}}
We'll use this for the email forwarding UI, but it may also be
generally useful, and easy to generalize to OR.
(imported from commit da601f94d9da300213ff46be50255135c014eca0)
This has the amusing side effect of showing all the Zulip bots in the
administration view because none of them have the is_bot set.
(imported from commit cdec19d2109c092018c1f331aa32f345d1587683)
We now show a list of users and allow you to deactivate a user using the
same process as `python manage.py deactivate_user`.
We add a new menu item accessible from the gear icon which will eventually
have much more than just this, but we have a good start here.
Here we also add a property to UserProfile which determines whether you're
eligible to access the administration panel, and then have code which shows
the menu option if so.
This introduces a new JS file, admin.js.
(imported from commit 52296fdedb46b4f32d541df43022ffccfb277297)
We remove the calls to clear_box()/hide_box() and start(),
so that we don't mutate a bunch of UI elements needlessly.
Everything that start() does either never made sense in a
just-after-message-sent context, or it was necessary prior to
this fix only because of what happened in clear_box() or
hide_box().
This change closes out trac #1672, "Clean up always-open code."
(imported from commit bedaa719eb05e166a4bac562784da0cce8859700)
One of the calls was obviously a typo dup, and the other
call is already covered by clear_box().
(imported from commit 448dc4c0f265cc7260ea08f0468a7d1440903e3c)
Due to the code removed in this diff, we would put you
back to your original reply stream/topic/sendee
(imported from commit 6e1f4666e3b32b057e692e015782780f7c734445)
The flag has been set to true for a while, so we removed
the flag and a bit of dead code associated with it. This
change should not affect any functionality on any realm.
(imported from commit 8d457f52584173994d0e5e83ca326f892cd90057)
Use information from the server to figure out if we should prompt for
bankruptcy, rather than trying repeatedly inside load_more.
(imported from commit ccb8cb1ce482b8bf3d343e7324fef7981880282d)
We instead implemented the ~desired functionality here using the
API and a bot to make a totally read-only, static, slowly-updating
view into the Zuliverse.
This is the moral equivalent of reverting deb035b4c702fcdb0e660ed549fe74c682abb6d9
(imported from commit 9d743fe82f197b37f005e5a038f77cc4b8566024)
1) The class Filter now lives in its own module.
2) The function canonicalized_operators() is now a class method on Filter.
3) The function message_in_home moved to filter.js and became private.
4) Various calling code had to change, of course.
5) Splitting out Filter helped simplify a few tests.
(imported from commit e41d792b46d3d6a30d3bd03db0419f129d0a2a7b)
Steve Howell
Leo Franchi
Jessica McKellar
Kevin Mehall
Allen Rabinovich
Waseem Daher
Zev Benjamin
Jeff Arnold
Tim Abbott
Scott Feeney
acrefoot
Luke Faraone