84 lines
3.1 KiB
JavaScript
84 lines
3.1 KiB
JavaScript
(function (root, factory) {
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const filterCommands = factory();
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if (typeof module === 'object' && module.exports) module.exports = filterCommands;
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if (root) root.filterCommands = filterCommands;
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})(typeof globalThis !== 'undefined' ? globalThis : this, function () {
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function filterCommands(commands, filter) {
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const term = String(filter || '').toLowerCase();
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return commands.filter(command => command.name.toLowerCase().includes(term));
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}
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filterCommands.nextSelection = function nextSelection(current, key, count) {
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if (count < 1) return -1;
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if (key === 'ArrowDown') return (current + 1 + count) % count;
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if (key === 'ArrowUp') return (current - 1 + count) % count;
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return current;
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};
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filterCommands.createGlobalSearchController = function createGlobalSearchController(options) {
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const search = options.search;
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const onState = options.onState;
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const delay = options.delay === undefined ? 250 : options.delay;
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let timer = null;
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let generation = 0;
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let activeController = null;
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let state = { status: 'idle', query: '', items: [], more: false, next: 1 };
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function publish(next) {
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state = next;
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onState(next);
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}
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async function requestPage(query, page, current, append) {
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const requestController = new AbortController();
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activeController = requestController;
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try {
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const result = await search(query, requestController.signal, page);
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const partial = result.partial === true;
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const incoming = result.items || result;
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const combined = append ? state.items.concat(incoming) : incoming;
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const items = [...new Map((combined || []).map(item =>
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[`${item.kind}:${item.repository}:${item.number}`, item]
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)).values()];
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if (current === generation) publish({
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status: 'ready', query, items, partial,
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more: !!result.has_more,
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next: result.next_page,
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});
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} catch (error) {
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if (error && error.name === 'AbortError') return;
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if (current === generation) publish(append
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? { ...state, status: 'ready' }
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: { status: 'error', query, items: [], error });
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} finally {
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if (activeController === requestController) activeController = null;
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}
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}
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return {
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setQuery(value) {
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const query = String(value || '').trim();
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generation += 1;
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const current = generation;
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if (timer !== null) clearTimeout(timer);
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if (activeController !== null) activeController.abort();
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activeController = null;
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if (query.length < 2) {
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publish({ status: 'idle', query, items: [], more: false, next: 1 });
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return;
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}
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publish({ status: 'loading', query, items: [], more: false, next: 1 });
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timer = setTimeout(() => requestPage(query, 1, current, false), delay);
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},
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loadMore() {
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if (state.status !== 'ready' || !state.more || activeController) return;
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const current = generation;
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const page = state.next;
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requestPage(state.query, page, current, true);
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},
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};
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};
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return filterCommands;
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});
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