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Simplify maybe_activate_stream_item(). 

We extract get_sidebar_stream_topic_info() and just call
topic_list.rebuild() directly, which allows us to eliminate
rebuild_recent_topics().
This commit is contained in:
Steve Howell 2017-08-10 12:31:17 -04:00 committed by Tim Abbott
parent cd4dd90641
commit d2686bdcdd
1 changed files with 56 additions and 34 deletions
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56
static/js/stream_list.js
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@ -305,14 +305,6 @@ function set_stream_unread_count(stream_id, count) {
exports.update_count_in_dom(unread_count_elem, count);
}
function rebuild_recent_topics(stream_name) {
// TODO: Call rebuild_recent_topics less, not on every new
// message.
var stream_id = stream_data.get_stream_id(stream_name);
var stream_li = exports.get_stream_li(stream_id);
topic_list.rebuild(stream_li, stream_id);
}
exports.update_streams_sidebar = function () {
exports.build_stream_list();
@ -384,13 +376,45 @@ exports.refresh_pinned_or_unpinned_stream = function (sub) {
}
};
exports.maybe_activate_stream_item = function (filter) {
exports.get_sidebar_stream_topic_info = function (filter) {
var result = {
stream_id: undefined,
topic_selected: false,
};
var op_stream = filter.operands('stream');
if (op_stream.length !== 0) {
if (op_stream.length === 0) {
return result;
}
var stream_name = op_stream[0];
var stream_id = stream_data.get_stream_id(stream_name);
if (stream_id && stream_data.id_is_subscribed(stream_id)) {
if (!stream_id) {
return result;
}
if (!stream_data.id_is_subscribed(stream_id)) {
return result;
}
result.stream_id = stream_id;
var op_subject = filter.operands('topic');
result.topic_selected = (op_subject.length === 1);
return result;
};
exports.maybe_activate_stream_item = function (filter) {
var info = exports.get_sidebar_stream_topic_info(filter);
var stream_id = info.stream_id;
if (!stream_id) {
return;
}
var stream_li = exports.get_stream_li(stream_id);
if (!stream_li) {
@ -399,19 +423,17 @@ exports.maybe_activate_stream_item = function (filter) {
// corresponding to that stream in our sidebar. We have
// evidence that this assumption breaks down for some users,
// but we are not clear why it happens.
blueslip.error('No stream_li for subscribed stream ' + stream_name);
blueslip.error('No stream_li for subscribed stream ' + stream_id);
return;
}
var op_subject = filter.operands('topic');
if (op_subject.length === 0) {
if (!info.topic_selected) {
stream_li.addClass('active-filter');
}
rebuild_recent_topics(stream_name);
topic_list.rebuild(stream_li, stream_id);
return stream_li;
}
}
};
function deselect_top_left_corner_items() {