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Extract stream_sort.js.

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This commit is contained in:
Steve Howell
2017-04-18 08:08:59 -07:00
committed by Tim Abbott
parent 4fb450d4a9
commit 9591b3a95b
5 changed files with 142 additions and 72 deletions
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102
static/js/stream_list.js
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@@ -3,8 +3,6 @@ var stream_list = (function () {
var exports = {};
var zoomed_stream = '';
var previous_sort_order;
var previous_unpinned_order;
function update_count_in_dom(unread_count_elem, count) {
var count_span = unread_count_elem.find('.count');
@@ -27,32 +25,6 @@ function update_count_in_dom(unread_count_elem, count) {
value_span.text(count);
}
function filter_streams_by_search(streams) {
var search_box = $(".stream-list-filter");
var search_term = search_box.expectOne().val().trim();
if (search_term === '') {
return streams;
}
var search_terms = search_term.toLowerCase().split(",");
search_terms = _.map(search_terms, function (s) {
return s.trim();
});
var filtered_streams = _.filter(streams, function (stream) {
return _.any(search_terms, function (search_term) {
var lower_stream_name = stream.toLowerCase().split(" ");
return _.any(lower_stream_name, function (name) {
return name.indexOf(search_term) === 0;
});
});
});
return filtered_streams;
}
exports.stream_sidebar = (function () {
var self = {};
@@ -93,11 +65,21 @@ exports.stream_sidebar = (function () {
return self;
}());
function get_search_term() {
var search_box = $(".stream-list-filter");
var search_term = search_box.expectOne().val().trim();
return search_term;
}
exports.remove_sidebar_row = function (stream_id) {
exports.stream_sidebar.remove_row(stream_id);
// We need to make sure we resort if the removed sub gets added again
previous_sort_order = undefined;
previous_unpinned_order = undefined;
// We call sort_groups to update our list of streams,
// even though we don't use the result, since we can
// just remove the row. (The list of streams will
// be used by things like typeahead and hotkeys to
// advance to the next stream.)
stream_sort.sort_groups(get_search_term());
};
exports.create_initial_sidebar_rows = function () {
@@ -121,63 +103,39 @@ exports.build_stream_list = function () {
return;
}
streams = filter_streams_by_search(streams);
// The main logic to build the list is in stream_sort.js, and
// we get three lists of streams (pinned/normal/dormant).
var stream_groups = stream_sort.sort_groups(get_search_term());
if (stream_groups.same_as_before) {
return;
}
var sort_recent = (streams.length > 40);
var pinned_streams = [];
var unpinned_streams = [];
var parent = $('#stream_filters');
var elems = [];
function add_sidebar_li(stream) {
var sub = stream_data.get_sub(stream);
var sidebar_row = exports.stream_sidebar.get_row(sub.stream_id);
if (sort_recent) {
if (stream_groups.sort_recent) {
sidebar_row.update_whether_active();
}
elems.push(sidebar_row.get_li().get(0));
}
_.each(streams, function (stream) {
var pinned = stream_data.get_sub(stream).pin_to_top;
if (pinned) {
pinned_streams.push(stream);
} else {
unpinned_streams.push(stream);
}
});
pinned_streams.sort(util.strcmp);
unpinned_streams.sort(function (a, b) {
if (sort_recent) {
if (stream_data.is_active(b) && ! stream_data.is_active(a)) {
return 1;
} else if (! stream_data.is_active(b) && stream_data.is_active(a)) {
return -1;
}
}
return util.strcmp(a, b);
});
streams = pinned_streams.concat(unpinned_streams);
if (previous_sort_order !== undefined &&
util.array_compare(previous_sort_order, streams) &&
util.array_compare(previous_unpinned_order, unpinned_streams)) {
return;
}
previous_sort_order = streams;
previous_unpinned_order = unpinned_streams;
parent.empty();
if (pinned_streams.length > 0) {
_.each(pinned_streams, add_sidebar_li);
_.each(stream_groups.pinned_streams, add_sidebar_li);
if (stream_groups.pinned_streams.length > 0) {
elems.push($('<hr class="pinned-stream-split">').get(0));
}
if (unpinned_streams.length > 0) {
_.each(unpinned_streams, add_sidebar_li);
}
_.each(stream_groups.normal_streams, add_sidebar_li);
// TODO: Add a divider here if there are dormant streams.
_.each(stream_groups.dormant_streams, add_sidebar_li);
$(elems).appendTo(parent);
};