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topic_list: Rewrite typeahead using an item type.

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This makes it a lot easier to control the matching and display
separately.
This commit is contained in:
Tim Abbott
2025-07-15 16:32:30 -07:00
parent 421f5e9e0c
commit 24113b5dd5
1 changed files with 28 additions and 24 deletions
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52
web/src/topic_list.ts
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@@ -26,17 +26,28 @@ import type {TopicInfo} from "./topic_list_data.ts";
import * as typeahead_helper from "./typeahead_helper.ts";
import * as vdom from "./vdom.ts";
/*
Track all active widgets with a Map by stream_id.
type TopicFilterPill = {
label: string;
syntax: string;
};
(We have at max one for now, but we may
eventually allow multiple streams to be
expanded.)
*/
const filter_options: TopicFilterPill[] = [
{
label: $t({defaultMessage: "Unresolved topics"}),
syntax: "-is:resolved",
},
{
label: $t({defaultMessage: "Resolved topics"}),
syntax: "is:resolved",
},
];
/* Track all active widgets with a Map by stream_id. We have at max
one for now, but we may eventually allow multiple streams to be
expanded. */
const active_widgets = new Map<number, LeftSidebarTopicListWidget>();
export let search_pill_widget: SearchPillWidget | null = null;
export let topic_state_typeahead: Typeahead<string> | undefined;
export let topic_state_typeahead: Typeahead<TopicFilterPill> | undefined;
// We know whether we're zoomed or not.
let zoomed = false;
@@ -500,12 +511,6 @@ function set_search_bar_text(text: string): void {
$input.trigger("input");
}
const filter_options = new Map<string, string>([
[$t({defaultMessage: "Unresolved topics"}), "-is:resolved"],
[$t({defaultMessage: "Resolved topics"}), "is:resolved"],
[$t({defaultMessage: "All topics"}), ""],
]);
export function setup_topic_search_typeahead(): void {
const $input = $("#topic_filter_query");
const $pill_container = $("#left-sidebar-filter-topic-input");
@@ -522,7 +527,6 @@ export function setup_topic_search_typeahead(): void {
};
const options = {
items: filter_options.size,
source() {
const stream_id = active_stream_id();
assert(stream_id !== undefined);
@@ -534,27 +538,27 @@ export function setup_topic_search_typeahead(): void {
if ($pills.length > 0) {
return [];
}
return [...filter_options.keys()];
return [...filter_options];
},
item_html(item: string) {
return typeahead_helper.render_topic_state(item);
item_html(item: TopicFilterPill) {
return typeahead_helper.render_topic_state(item.label);
},
matcher(item: string, query: string) {
return item.toLowerCase().startsWith(query.toLowerCase());
matcher(item: TopicFilterPill, query: string) {
return item.syntax.toLowerCase().startsWith(query.toLowerCase());
},
sorter(items: string[]) {
sorter(items: TopicFilterPill[]) {
return items;
},
updater(item: string) {
const value = filter_options.get(item)!;
updater(item: TopicFilterPill) {
assert(search_pill_widget !== null);
search_pill_widget.clear(true);
search_pill_widget.appendValue(value);
search_pill_widget.appendValue(item.syntax);
set_search_bar_text("");
$input.trigger("focus");
return get_left_sidebar_topic_search_term();
},
// Prevents key events from propagating to other handlers or triggering default browser actions.
// Prevents key events from propagating to other handlers or
// triggering default browser actions.
stopAdvance: true,
// Use dropup, to match compose typeahead.
dropup: true,