Files
zulip/static/js/stream_sort.js
Steve Howell 9ab07d1038 util.js: Remove util from window.
We now treat util like a leaf module and
use "require" to import it everywhere it's used.

An earlier version of this commit moved
util into our "shared" library, but we
decided to wait on that.  Once we're ready
to do that, we should only need to do a
simple search/replace on various
require/zrequire statements plus a small
tweak to one of the custom linter checks.

It turns out we don't really need util.js
for our most immediate code-sharing goal,
which is to reuse our markdown code on
mobile.  There's a little bit of cleanup
still remaining to break the dependency,
but it's minor.

The util module still calls the global
blueslip module in one place, but that
code is about to be removed in the next
few commits.

I am pretty confident that once we start
sharing things like the typeahead code
more aggressively, we'll start having
dependencies on util.  The module is barely
more than 300 lines long, so we'll probably
just move the whole thing into shared
rather than break it apart.  Also, we
can continue to nibble away at the
cruftier parts of the module.
2020-02-15 12:20:20 -08:00

131 lines
3.2 KiB
JavaScript

const util = require("./util");
let previous_pinned;
let previous_normal;
let previous_dormant;
let all_streams = [];
exports.get_streams = function () {
// Right now this is only used for testing, but we should
// use it for things like hotkeys that cycle through streams.
return all_streams;
};
function filter_streams_by_search(streams, search_term) {
if (search_term === '') {
return streams;
}
let search_terms = search_term.toLowerCase().split(",");
search_terms = search_terms.map(s => s.trim());
const filtered_streams = streams.filter(stream => search_terms.some(search_term => {
const lower_stream_name = stream.toLowerCase();
const cands = lower_stream_name.split(" ");
cands.push(lower_stream_name);
return cands.some(name => name.startsWith(search_term));
}));
return filtered_streams;
}
exports.sort_groups = function (streams, search_term) {
if (streams.length === 0) {
return;
}
streams = filter_streams_by_search(streams, search_term);
function is_normal(sub) {
return stream_data.is_active(sub);
}
const pinned_streams = [];
const normal_streams = [];
const dormant_streams = [];
for (const stream of streams) {
const sub = stream_data.get_sub(stream);
const pinned = sub.pin_to_top;
if (pinned) {
pinned_streams.push(stream);
} else if (is_normal(sub)) {
normal_streams.push(stream);
} else {
dormant_streams.push(stream);
}
}
pinned_streams.sort(util.strcmp);
normal_streams.sort(util.strcmp);
dormant_streams.sort(util.strcmp);
const same_as_before =
previous_pinned !== undefined &&
util.array_compare(previous_pinned, pinned_streams) &&
util.array_compare(previous_normal, normal_streams) &&
util.array_compare(previous_dormant, dormant_streams);
if (!same_as_before) {
previous_pinned = pinned_streams;
previous_normal = normal_streams;
previous_dormant = dormant_streams;
all_streams = pinned_streams.concat(normal_streams, dormant_streams);
}
return {
same_as_before: same_as_before,
pinned_streams: pinned_streams,
normal_streams: normal_streams,
dormant_streams: dormant_streams,
};
};
function pos(stream_id) {
const sub = stream_data.get_sub_by_id(stream_id);
const name = sub.name;
const i = all_streams.indexOf(name);
if (i < 0) {
return;
}
return i;
}
function maybe_get_stream_id(i) {
if (i < 0 || i >= all_streams.length) {
return;
}
const name = all_streams[i];
const stream_id = stream_data.get_stream_id(name);
return stream_id;
}
exports.first_stream_id = function () {
return maybe_get_stream_id(0);
};
exports.prev_stream_id = function (stream_id) {
const i = pos(stream_id);
if (i === undefined) {
return;
}
return maybe_get_stream_id(i - 1);
};
exports.next_stream_id = function (stream_id) {
const i = pos(stream_id);
if (i === undefined) {
return;
}
return maybe_get_stream_id(i + 1);
};
window.stream_sort = exports;