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left_sidebar: Show highlighted channel/topic even when folder is collapsed.

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This commit is contained in:
Evy Kassirer
2025-07-17 15:50:15 -07:00
committed by Tim Abbott
parent 9478525f15
commit add97effbb
4 changed files with 45 additions and 1 deletions
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16
web/src/stream_list.ts
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@@ -314,6 +314,19 @@ export function build_stream_list(force_rerender: boolean): void {
collapse_collapsed_sections();
}
/* When viewing a channel in a collapsed folder, we show that active
highlighted channel in the left sidebar even though the folder is
collapsed. If there's an active highlighted topic within the
channel, we show it too. If there's no highlighted topic within the
channel, then we should treat this like an empty topic list and remove
the left bracket. */
export function maybe_hide_topic_bracket(section_id: string): void {
const $container = $(`#stream-list-${section_id}-container`);
const is_collapsed = collapsed_sections.has(section_id);
const $highlighted_topic = $container.find(".topic-list-item.active-sub-filter");
$container.toggleClass("hide-topic-bracket", is_collapsed && $highlighted_topic.length === 0);
}
function toggle_section_collapse($container: JQuery): void {
$container.toggleClass("collapsed");
const is_collapsed = $container.hasClass("collapsed");
@@ -328,6 +341,7 @@ function toggle_section_collapse($container: JQuery): void {
} else {
collapsed_sections.delete(section_id);
}
maybe_hide_topic_bracket(section_id);
}
function collapse_collapsed_sections(): void {
@@ -651,6 +665,8 @@ export function refresh_pinned_or_unpinned_stream(sub: StreamSubscription): void
// We use kind of brute force now, which is probably fine.
build_stream_sidebar_row(sub);
update_streams_sidebar();
const section_id = stream_list_sort.current_section_id_for_stream(sub.stream_id);
maybe_hide_topic_bracket(section_id);
// Only scroll pinned topics into view. If we're unpinning
// a topic, we may be literally trying to get it out of