mirror of https://github.com/zulip/zulip.git
780 lines
23 KiB
JavaScript
780 lines
23 KiB
JavaScript
var stream_list = (function () {
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var exports = {};
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exports.update_count_in_dom = function (unread_count_elem, count) {
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var count_span = unread_count_elem.find('.count');
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var value_span = count_span.find('.value');
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if (count === 0) {
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count_span.hide();
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if (count_span.parent().hasClass("subscription_block")) {
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count_span.parent(".subscription_block").removeClass("stream-with-count");
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}
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value_span.text('');
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return;
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}
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count_span.show();
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if (count_span.parent().hasClass("subscription_block")) {
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count_span.parent(".subscription_block").addClass("stream-with-count");
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}
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value_span.text(count);
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};
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exports.stream_sidebar = (function () {
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var self = {};
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self.rows = new Dict(); // stream id -> row widget
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self.set_row = function (stream_id, widget) {
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self.rows.set(stream_id, widget);
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};
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self.get_row = function (stream_id) {
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return self.rows.get(stream_id);
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};
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self.has_row_for = function (stream_id) {
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return self.rows.has(stream_id);
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};
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self.remove_row = function (stream_id) {
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// This only removes the row from our data structure.
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// Our caller should use build_stream_list() to re-draw
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// the sidebar, so that we don't have to deal with edge
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// cases like removing the last pinned stream (and removing
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// the divider).
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self.rows.del(stream_id);
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};
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return self;
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}());
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function get_search_term() {
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var search_box = $(".stream-list-filter");
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var search_term = search_box.expectOne().val().trim();
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return search_term;
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}
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exports.remove_sidebar_row = function (stream_id) {
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exports.stream_sidebar.remove_row(stream_id);
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exports.build_stream_list();
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};
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exports.create_initial_sidebar_rows = function () {
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// This code is slightly opaque, but it ends up building
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// up list items and attaching them to the "sub" data
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// structures that are kept in stream_data.js.
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var subs = stream_data.subscribed_subs();
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_.each(subs, function (sub) {
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exports.create_sidebar_row(sub);
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});
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};
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exports.build_stream_list = function () {
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// This function assumes we have already created the individual
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// sidebar rows. Our job here is to build the bigger widget,
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// which largely is a matter of arranging the individual rows in
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// the right order.
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var streams = stream_data.subscribed_streams();
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if (streams.length === 0) {
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return;
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}
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// The main logic to build the list is in stream_sort.js, and
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// we get three lists of streams (pinned/normal/dormant).
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var stream_groups = stream_sort.sort_groups(get_search_term());
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if (stream_groups.same_as_before) {
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return;
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}
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var parent = $('#stream_filters');
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var elems = [];
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function add_sidebar_li(stream) {
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var sub = stream_data.get_sub(stream);
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var sidebar_row = exports.stream_sidebar.get_row(sub.stream_id);
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sidebar_row.update_whether_active();
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elems.push(sidebar_row.get_li());
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}
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parent.empty();
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_.each(stream_groups.pinned_streams, add_sidebar_li);
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var any_pinned_streams = stream_groups.pinned_streams.length > 0;
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var any_normal_streams = stream_groups.normal_streams.length > 0;
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var any_dormant_streams = stream_groups.dormant_streams.length > 0;
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if (any_pinned_streams && (any_normal_streams || any_dormant_streams)) {
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elems.push('<hr class="stream-split">');
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}
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_.each(stream_groups.normal_streams, add_sidebar_li);
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if (any_dormant_streams && any_normal_streams) {
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elems.push('<hr class="stream-split">');
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}
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_.each(stream_groups.dormant_streams, add_sidebar_li);
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parent.append(elems);
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};
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exports.get_stream_li = function (stream_id) {
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var row = exports.stream_sidebar.get_row(stream_id);
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if (!row) {
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// Not all streams are in the sidebar, so we don't report
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// an error here, and it's up for the caller to error if
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// they expected otherwise.
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return;
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}
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var li = row.get_li();
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if (!li) {
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blueslip.error('Cannot find li for id ' + stream_id);
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return;
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}
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if (li.length > 1) {
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blueslip.error('stream_li has too many elements for ' + stream_id);
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return;
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}
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return li;
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};
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function zoom_in(options) {
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popovers.hide_all();
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topic_list.zoom_in();
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$("#streams_list").expectOne().removeClass("zoom-out").addClass("zoom-in");
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// Hide stream list titles and pinned stream splitter
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$(".stream-filters-label").each(function () {
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$(this).hide();
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});
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$(".stream-split").each(function () {
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$(this).hide();
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});
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$("#stream_filters li.narrow-filter").each(function () {
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var elt = $(this);
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var stream_id = options.stream_id.toString();
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if (elt.attr('data-stream-id') === stream_id) {
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elt.show();
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} else {
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elt.hide();
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}
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});
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}
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function zoom_out(options) {
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popovers.hide_all();
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topic_list.zoom_out();
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if (options.stream_li) {
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exports.scroll_stream_into_view(options.stream_li);
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}
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exports.show_all_streams();
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}
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exports.show_all_streams = function () {
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// Show stream list titles and pinned stream splitter
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$(".stream-filters-label").each(function () {
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$(this).show();
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});
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$(".stream-split").each(function () {
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$(this).show();
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});
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$("#streams_list").expectOne().removeClass("zoom-in").addClass("zoom-out");
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$("#stream_filters li.narrow-filter").show();
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};
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exports.set_in_home_view = function (stream_id, in_home) {
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var li = exports.get_stream_li(stream_id);
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if (!li) {
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blueslip.error('passed in bad stream id ' + stream_id);
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return;
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}
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if (in_home) {
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li.removeClass("out_of_home_view");
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} else {
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li.addClass("out_of_home_view");
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}
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};
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function build_stream_sidebar_li(sub) {
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var name = sub.name;
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var args = {name: name,
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id: sub.stream_id,
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uri: narrow.by_stream_uri(name),
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not_in_home_view: (stream_data.in_home_view(sub.stream_id) === false),
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invite_only: sub.invite_only,
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color: stream_data.get_color(name),
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pin_to_top: sub.pin_to_top,
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};
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args.dark_background = stream_color.get_color_class(args.color);
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var list_item = $(templates.render('stream_sidebar_row', args));
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return list_item;
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}
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function build_stream_sidebar_row(sub) {
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var self = {};
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var list_item = build_stream_sidebar_li(sub);
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self.update_whether_active = function () {
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if (stream_data.is_active(sub)) {
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list_item.removeClass('inactive_stream');
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} else {
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list_item.addClass('inactive_stream');
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}
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};
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self.get_li = function () {
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return list_item;
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};
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self.remove = function () {
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list_item.remove();
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};
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self.update_unread_count = function () {
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var count = unread.num_unread_for_stream(sub.stream_id);
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exports.update_count_in_dom(list_item, count);
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};
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self.update_unread_count();
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exports.stream_sidebar.set_row(sub.stream_id, self);
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}
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exports.create_sidebar_row = function (sub) {
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if (exports.stream_sidebar.has_row_for(sub.stream_id)) {
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// already exists
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blueslip.warn('Dup try to build sidebar row for stream ' + sub.stream_id);
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return;
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}
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build_stream_sidebar_row(sub);
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};
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exports.redraw_stream_privacy = function (sub) {
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var li = exports.get_stream_li(sub.stream_id);
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if (!li) {
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// We don't want to raise error here, if we can't find stream in subscription
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// stream list. Cause we allow org admin to update stream privacy
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// even if they don't subscribe to public stream.
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return;
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}
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var div = li.find('.stream-privacy');
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var dark_background = stream_color.get_color_class(sub.color);
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var args = {
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invite_only: sub.invite_only,
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dark_background: dark_background,
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};
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var html = templates.render('stream_privacy', args);
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div.html(html);
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};
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function set_stream_unread_count(stream_id, count) {
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var unread_count_elem = exports.get_stream_li(stream_id);
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if (!unread_count_elem) {
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// This can happen for legitimate reasons, but we warn
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// just in case.
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blueslip.warn('stream id no longer in sidebar: ' + stream_id);
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return;
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}
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exports.update_count_in_dom(unread_count_elem, count);
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}
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exports.update_streams_sidebar = function () {
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exports.build_stream_list();
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// highlight new top stream
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$('#stream_filters li.highlighted_stream').removeClass('highlighted_stream');
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if (exports.searching()) {
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var all_streams = $('#stream_filters li.narrow-filter');
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exports.highlight_first(all_streams, 'highlighted_stream');
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}
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if (! narrow_state.active()) {
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return;
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}
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var filter = narrow_state.filter();
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exports.update_stream_sidebar_for_narrow(filter);
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};
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exports.update_dom_with_unread_counts = function (counts) {
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// counts.stream_count maps streams to counts
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counts.stream_count.each(function (count, stream_id) {
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set_stream_unread_count(stream_id, count);
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});
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// counts.topic_count maps streams to hashes of topics to counts
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counts.topic_count.each(function (subject_hash, stream_id) {
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subject_hash.each(function (count, subject) {
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topic_list.set_count(stream_id, subject, count);
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});
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});
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};
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exports.rename_stream = function (sub) {
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// The sub object is expected to already have the updated name
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build_stream_sidebar_row(sub);
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exports.update_streams_sidebar(); // big hammer
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};
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exports.refresh_pinned_or_unpinned_stream = function (sub) {
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// Pinned/unpinned streams require re-ordering.
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// We use kind of brute force now, which is probably fine.
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build_stream_sidebar_row(sub);
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exports.update_streams_sidebar();
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// Only scroll pinned topics into view. If we're unpinning
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// a topic, we may be literally trying to get it out of
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// our sight.
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if (sub.pin_to_top) {
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var stream_li = exports.get_stream_li(sub.stream_id);
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if (!stream_li) {
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blueslip.error('passed in bad stream id ' + sub.stream_id);
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return;
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}
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exports.scroll_stream_into_view(stream_li);
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}
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};
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function clear_topics() {
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topic_list.close();
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exports.show_all_streams();
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}
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exports.get_sidebar_stream_topic_info = function (filter) {
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var result = {
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stream_id: undefined,
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topic_selected: false,
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};
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var op_stream = filter.operands('stream');
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if (op_stream.length === 0) {
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return result;
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}
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var stream_name = op_stream[0];
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var stream_id = stream_data.get_stream_id(stream_name);
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if (!stream_id) {
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return result;
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}
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if (!stream_data.id_is_subscribed(stream_id)) {
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return result;
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}
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result.stream_id = stream_id;
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var op_subject = filter.operands('topic');
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result.topic_selected = (op_subject.length === 1);
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return result;
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};
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function deselect_stream_items() {
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$("ul#stream_filters li").removeClass('active-filter active-sub-filter');
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}
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exports.update_stream_sidebar_for_narrow = function (filter) {
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var info = exports.get_sidebar_stream_topic_info(filter);
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deselect_stream_items();
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var stream_id = info.stream_id;
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if (!stream_id) {
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clear_topics();
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return;
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}
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var stream_li = exports.get_stream_li(stream_id);
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if (!stream_li) {
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// It should be the case then when we have a subscribed
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// stream, there will always be a stream list item
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// corresponding to that stream in our sidebar. We have
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// evidence that this assumption breaks down for some users,
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// but we are not clear why it happens.
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blueslip.error('No stream_li for subscribed stream ' + stream_id);
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clear_topics();
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return;
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}
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if (!info.topic_selected) {
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stream_li.addClass('active-filter');
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}
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if (stream_id !== topic_list.active_stream_id()) {
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clear_topics();
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}
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topic_list.rebuild(stream_li, stream_id);
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return stream_li;
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};
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exports.handle_narrow_activated = function (filter) {
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var stream_li = exports.update_stream_sidebar_for_narrow(filter);
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if (stream_li) {
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exports.scroll_stream_into_view(stream_li);
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}
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// Update scrollbar size.
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$("#stream-filters-container").perfectScrollbar("update");
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};
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exports.handle_narrow_deactivated = function () {
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deselect_stream_items();
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clear_topics();
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};
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exports.initialize = function () {
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// TODO, Eventually topic_list won't be a big singleton,
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// and we can create more component-based click handlers for
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// each stream.
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topic_list.set_click_handlers({
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zoom_in: zoom_in,
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zoom_out: zoom_out,
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});
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$(document).on('subscription_add_done.zulip', function (event) {
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exports.create_sidebar_row(event.sub);
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exports.build_stream_list();
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});
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$(document).on('subscription_remove_done.zulip', function (event) {
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exports.remove_sidebar_row(event.sub.stream_id);
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});
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$('#stream_filters').on('click', 'li .subscription_block', function (e) {
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if (e.metaKey || e.ctrlKey) {
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return;
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}
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if (overlays.is_active()) {
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ui_util.change_tab_to('#home');
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}
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var stream_id = $(e.target).parents('li').attr('data-stream-id');
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var sub = stream_data.get_sub_by_id(stream_id);
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popovers.hide_all();
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narrow.by('stream', sub.name, {select_first_unread: true, trigger: 'sidebar'});
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exports.clear_and_hide_search();
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e.preventDefault();
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e.stopPropagation();
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});
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};
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function actually_update_streams_for_search() {
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exports.update_streams_sidebar();
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resize.resize_page_components();
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}
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var update_streams_for_search = _.throttle(actually_update_streams_for_search, 50);
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exports.searching = function () {
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return $('.stream-list-filter').expectOne().is(':focus');
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};
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exports.escape_search = function () {
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var filter = $('.stream-list-filter').expectOne();
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if (filter.val() === '') {
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exports.clear_and_hide_search();
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return;
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}
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filter.val('');
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update_streams_for_search();
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};
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exports.clear_search = function () {
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var filter = $('.stream-list-filter').expectOne();
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if (filter.val() === '') {
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exports.clear_and_hide_search();
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return;
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}
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filter.val('');
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filter.blur();
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update_streams_for_search();
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};
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exports.initiate_search = function () {
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var filter = $('.stream-list-filter').expectOne();
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filter.parent().removeClass('notdisplayed');
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if (!$(".app-main .column-left").hasClass("expanded")) {
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popovers.hide_all();
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stream_popover.show_streamlist_sidebar();
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}
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filter.focus();
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// Highlight first result
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var all_streams = $('#stream_filters li.narrow-filter');
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exports.highlight_first(all_streams, 'highlighted_stream');
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};
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exports.clear_and_hide_search = function () {
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var filter = $('.stream-list-filter');
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if (filter.val() !== '') {
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filter.val('');
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update_streams_for_search();
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}
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filter.blur();
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filter.parent().addClass('notdisplayed');
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};
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function focus_stream_filter(e) {
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if ($('#stream_filters li.narrow-filter.highlighted_stream').length === 0) {
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// Highlight
|
|
var all_streams = $('#stream_filters li.narrow-filter');
|
|
exports.highlight_first(all_streams, 'highlighted_stream');
|
|
}
|
|
e.stopPropagation();
|
|
}
|
|
|
|
function focusout_stream_filter() {
|
|
// Undo highlighting
|
|
$('#stream_filters li.narrow-filter.highlighted_stream').removeClass('highlighted_stream');
|
|
}
|
|
|
|
function keydown_enter_key() {
|
|
// Is there at least one stream?
|
|
if ($('#stream_filters li.narrow-filter').length > 0) {
|
|
var selected_stream_id = $('#stream_filters li.narrow-filter.highlighted_stream')
|
|
.expectOne().data('stream-id');
|
|
|
|
var top_stream = stream_data.get_sub_by_id(selected_stream_id);
|
|
|
|
if (overlays.is_active()) {
|
|
ui_util.change_tab_to('#home');
|
|
}
|
|
exports.clear_and_hide_search();
|
|
narrow.by('stream', top_stream.name,
|
|
{select_first_unread: true, trigger: 'sidebar enter key'});
|
|
}
|
|
}
|
|
|
|
function next_sibing_in_dir(elm, dir_up) {
|
|
if (dir_up) {
|
|
return elm.prev();
|
|
}
|
|
return elm.next();
|
|
}
|
|
|
|
function keydown_arrow_key(dir_up, all_streams_selector,
|
|
scroll_container, highlighting_class) {
|
|
// Are there streams to cyle through?
|
|
if ($(all_streams_selector).length > 0) {
|
|
var current_sel = $(all_streams_selector + '.' + highlighting_class).expectOne();
|
|
var next_sibling = next_sibing_in_dir(current_sel, dir_up);
|
|
|
|
if (highlighting_class === 'highlighted_stream'
|
|
&& next_sibling.is('hr.stream-split')) {
|
|
// Only for the left sidebar
|
|
// Skip separator
|
|
next_sibling = next_sibing_in_dir(next_sibling, dir_up);
|
|
}
|
|
|
|
if (!next_sibling.is('li.narrow-filter')) {
|
|
// At the every bottom or top
|
|
var all_streams = $(all_streams_selector);
|
|
if (dir_up) {
|
|
// top -> start at the bottom
|
|
next_sibling = all_streams.last();
|
|
} else {
|
|
// bottom -> start at the top
|
|
next_sibling = all_streams.first();
|
|
}
|
|
}
|
|
|
|
// Classes must be explicitly named
|
|
if (highlighting_class === 'highlighted_stream') {
|
|
current_sel.removeClass('highlighted_stream');
|
|
next_sibling.addClass('highlighted_stream');
|
|
} else if (highlighting_class === 'highlighted_user') {
|
|
current_sel.removeClass('highlighted_user');
|
|
next_sibling.addClass('highlighted_user');
|
|
}
|
|
|
|
exports.scroll_element_into_container(next_sibling, scroll_container);
|
|
}
|
|
}
|
|
|
|
exports.keydown_filter = function (e, all_streams_selector, scroll_container,
|
|
highlighting_class, enter_press_function) {
|
|
// Function for left and right sidebar
|
|
// Could be placed somewhere else but ui.js is already very full
|
|
|
|
// Catch <enter> and <up-arrow>, <down-arrow> key presses
|
|
var handled = false;
|
|
|
|
switch (e.keyCode) {
|
|
case 13: {
|
|
// Enter key was pressed
|
|
enter_press_function();
|
|
handled = true;
|
|
break;
|
|
}
|
|
case 38: {
|
|
// Up-arrow key was pressed
|
|
keydown_arrow_key(true, all_streams_selector,
|
|
scroll_container, highlighting_class);
|
|
handled = true;
|
|
break;
|
|
}
|
|
case 40: {
|
|
// Down-arrow key was pressed
|
|
keydown_arrow_key(false, all_streams_selector,
|
|
scroll_container, highlighting_class);
|
|
handled = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (handled) {
|
|
// Since we already handled the key event above, suppress the browser handling it.
|
|
// We don't want the cursor to move when <arrow-up/down> is pressed.
|
|
// In the <enter> case:
|
|
// Prevent a newline from being entered into the soon-to-be-opened composebox
|
|
e.preventDefault();
|
|
e.stopPropagation();
|
|
}
|
|
};
|
|
|
|
function keydown_stream_filter(e) {
|
|
exports.keydown_filter(e, '#stream_filters li.narrow-filter',
|
|
$('#stream-filters-container'), 'highlighted_stream', keydown_enter_key);
|
|
}
|
|
|
|
exports.highlight_first = function (all_streams, highlighting_class) {
|
|
if (all_streams.length > 0) {
|
|
// Classes must be explicitly named
|
|
if (highlighting_class === 'highlighted_stream') {
|
|
all_streams.first().addClass('highlighted_stream');
|
|
} else if (highlighting_class === 'highlighted_user') {
|
|
all_streams.first().addClass('highlighted_user');
|
|
}
|
|
}
|
|
};
|
|
|
|
exports.toggle_filter_displayed = function (e) {
|
|
if (e.target.id === 'streams_inline_cog') {
|
|
return;
|
|
}
|
|
if ($('#stream-filters-container .input-append.notdisplayed').length === 0) {
|
|
exports.clear_and_hide_search();
|
|
} else {
|
|
exports.initiate_search();
|
|
}
|
|
e.preventDefault();
|
|
};
|
|
|
|
$(function () {
|
|
$(".stream-list-filter").expectOne()
|
|
.on('click', focus_stream_filter)
|
|
.on('focusout', focusout_stream_filter)
|
|
.on('input', update_streams_for_search)
|
|
.on('keydown', keydown_stream_filter);
|
|
$('#clear_search_stream_button').on('click', exports.clear_search);
|
|
});
|
|
|
|
$(function () {
|
|
$("#streams_header").expectOne().click(function (e) {
|
|
exports.toggle_filter_displayed(e);
|
|
});
|
|
});
|
|
|
|
exports.scroll_stream_into_view = function (stream_li) {
|
|
var container = $('#stream-filters-container');
|
|
|
|
if (stream_li.length !== 1) {
|
|
blueslip.error('Invalid stream_li was passed in');
|
|
return;
|
|
}
|
|
|
|
exports.scroll_element_into_container(stream_li, container);
|
|
};
|
|
|
|
exports.scroll_delta = function (opts) {
|
|
var elem_top = opts.elem_top;
|
|
var container_height = opts.container_height;
|
|
var elem_bottom = opts.elem_bottom;
|
|
|
|
var delta = 0;
|
|
|
|
if (elem_top < 0) {
|
|
delta = Math.max(
|
|
elem_top,
|
|
elem_bottom - container_height
|
|
);
|
|
delta = Math.min(0, delta);
|
|
} else {
|
|
if (elem_bottom > container_height) {
|
|
delta = Math.min(
|
|
elem_top,
|
|
elem_bottom - container_height
|
|
);
|
|
delta = Math.max(0, delta);
|
|
}
|
|
}
|
|
|
|
return delta;
|
|
};
|
|
|
|
exports.scroll_element_into_container = function (elem, container) {
|
|
// This is a generic function to make elem visible in
|
|
// container by scrolling container appropriately. We may want to
|
|
// eventually move this into another module, but I couldn't find
|
|
// an ideal landing space for this. I considered a few modules, but
|
|
// some are already kind of bloated (ui.js), some may be deprecated
|
|
// (scroll_bar.js), and some just aren't exact fits (resize.js).
|
|
//
|
|
// This does the minimum amount of scrolling that is needed to make
|
|
// the element visible. It doesn't try to center the element, so
|
|
// this will be non-intrusive to users when they already have
|
|
// the element visible.
|
|
|
|
var elem_top = elem.position().top;
|
|
var elem_bottom = elem_top + elem.height();
|
|
|
|
var opts = {
|
|
elem_top: elem_top,
|
|
elem_bottom: elem_bottom,
|
|
container_height: container.height(),
|
|
};
|
|
|
|
var delta = exports.scroll_delta(opts);
|
|
|
|
if (delta === 0) {
|
|
return;
|
|
}
|
|
|
|
container.scrollTop(container.scrollTop() + delta);
|
|
};
|
|
|
|
return exports;
|
|
}());
|
|
if (typeof module !== 'undefined') {
|
|
module.exports = stream_list;
|
|
}
|