diff --git a/web_src/css/modules/search.css b/web_src/css/modules/search.css
index 7cf91d032f..647b7e27a3 100644
--- a/web_src/css/modules/search.css
+++ b/web_src/css/modules/search.css
@@ -1,3 +1,5 @@
+/* These are the remnants of the fomantic search module */
+
.ui.search {
position: relative;
}
diff --git a/web_src/js/modules/search.ts b/web_src/js/modules/search.ts
index 6a7c481387..f187f907ea 100644
--- a/web_src/js/modules/search.ts
+++ b/web_src/js/modules/search.ts
@@ -14,6 +14,13 @@ function buildResultHTML(result: SearchResult): string {
return html`${htmlRaw(img)}
${result.title}
${htmlRaw(desc)}
`;
}
+function buildResultElement(result: SearchResult): HTMLElement {
+ const item = document.createElement('div');
+ item.className = 'result';
+ item.innerHTML = buildResultHTML(result);
+ return item;
+}
+
/** Attach an API-driven autocomplete to `container`. `parse` maps the raw JSON response into the rendered result list. The selected result's title is written to the input on selection. */
export function attachSearchBox(container: HTMLElement, url: string, parse: (raw: T, query: string) => SearchResult[], {minCharacters = 2}: {minCharacters?: number} = {}): void {
const input = container.querySelector('input.prompt') ?? container.querySelector('input');
@@ -25,12 +32,11 @@ export function attachSearchBox(container: HTMLElement, url: string
resultsEl.className = 'results';
container.append(resultsEl);
}
-
- let fetchController: AbortController | null = null;
const itemResults = new Map();
- const items = () => resultsEl.querySelectorAll('.result');
+ let fetchController: AbortController | null = null;
const hide = () => {
+ fetchController?.abort();
resultsEl.style.display = 'none';
resultsEl.replaceChildren();
itemResults.clear();
@@ -38,60 +44,51 @@ export function attachSearchBox(container: HTMLElement, url: string
const render = (results: SearchResult[]) => {
if (!results.length) return hide();
- resultsEl.replaceChildren();
itemResults.clear();
- for (const result of results) {
- const item = document.createElement('div');
- item.className = 'result';
- item.innerHTML = buildResultHTML(result);
+ resultsEl.replaceChildren(...results.map((result) => {
+ const item = buildResultElement(result);
itemResults.set(item, result);
- resultsEl.append(item);
- }
+ return item;
+ }));
resultsEl.style.display = 'block';
};
const select = (item: HTMLElement) => {
- const picked = itemResults.get(item)!;
- input.value = picked.title;
+ input.value = itemResults.get(item)!.title;
input.dispatchEvent(new Event('change', {bubbles: true}));
hide();
};
- const performSearch = async (query: string) => {
+ const search = debounce(200, async (query: string) => {
fetchController?.abort();
if (query.length < minCharacters) return hide();
- fetchController = new AbortController();
+ const ctrl = (fetchController = new AbortController());
try {
- const response = await GET(url.replaceAll('{query}', encodeURIComponent(query)), {signal: fetchController.signal});
+ const response = await GET(url.replaceAll('{query}', encodeURIComponent(query)), {signal: ctrl.signal});
if (!response.ok) return hide();
const results = parse(await response.json(), query);
- if (input.value !== query) return; // stale response racing a newer keystroke
- render(results);
+ // hide() ran (signal aborted) or a newer keystroke landed before the response did
+ if (!ctrl.signal.aborted && input.value === query) render(results);
} catch (err) {
if ((err as Error).name !== 'AbortError') hide();
}
- };
+ });
- const debounced = debounce(200, (query: string) => { performSearch(query) });
-
- input.addEventListener('input', () => debounced(input.value));
- input.addEventListener('focus', () => { if (items().length) resultsEl.style.display = 'block'; });
+ input.addEventListener('input', () => search(input.value));
+ input.addEventListener('focus', () => { if (itemResults.size) resultsEl.style.display = 'block'; });
+ input.addEventListener('blur', () => setTimeout(hide, 150)); // deferred so a result mousedown can land first
input.addEventListener('keydown', (event) => {
- const all = items();
+ const all = Array.from(resultsEl.querySelectorAll('.result'));
if (!all.length) return;
- const activeIndex = Array.from(all).findIndex((item) => item.classList.contains('active'));
- const move = (next: number) => {
+ const index = all.findIndex((item) => item.classList.contains('active'));
+ if (event.key === 'ArrowDown' || event.key === 'ArrowUp') {
event.preventDefault();
- all[activeIndex]?.classList.remove('active');
+ all[index]?.classList.remove('active');
+ const next = event.key === 'ArrowDown' ? (index + 1) % all.length : index <= 0 ? all.length - 1 : index - 1;
all[next].classList.add('active');
- };
- if (event.key === 'ArrowDown') {
- move((activeIndex + 1) % all.length);
- } else if (event.key === 'ArrowUp') {
- move(activeIndex <= 0 ? all.length - 1 : activeIndex - 1);
- } else if (event.key === 'Enter' && activeIndex >= 0) {
+ } else if (event.key === 'Enter' && index >= 0) {
event.preventDefault();
- select(all[activeIndex]);
+ select(all[index]);
} else if (event.key === 'Escape') {
hide();
}
@@ -106,5 +103,4 @@ export function attachSearchBox(container: HTMLElement, url: string
document.addEventListener('click', (event) => {
if (!container.contains(event.target as Node)) hide();
});
- input.addEventListener('blur', () => setTimeout(hide, 150)); // deferred so a result mousedown can land first
}