Ergänzt AJAX-Livesuche für Seiten, Beiträge und Mediathek

public/assets/admin.css

@@ -708,6 +708,7 @@ details.card > summary:hover { background: #fafbf8 }
 
 /* Search and forms share usable widths throughout administration. */
 .field-wide{grid-column:1/-1;min-width:0}.field-wide textarea{width:100%;min-height:100px;resize:vertical}
+.live-search-ready .search-submit{display:none}.search-status{min-height:20px;margin:-12px 0 0}#list-results{scroll-margin-top:16px}#list-results>.section-head{margin-top:0}#list-results:focus-visible{outline:2px solid var(--accent);outline-offset:5px}#search-error p{margin-top:0}
 .list-toolbar{display:flex;flex-wrap:wrap;align-items:end;gap:14px;padding:18px;margin:24px 0;background:var(--paper,#fff);border:1px solid var(--line,#dce3da);border-radius:12px}
 .list-toolbar>div{min-width:140px}.list-toolbar .list-search{flex:1;min-width:220px}.list-toolbar input,.list-toolbar select{width:100%}
 .content-picker{position:relative;min-width:0}.picker-input{display:flex;gap:6px}.picker-input input{width:100%;min-width:0}.picker-input button{flex:none}

public/assets/live-search.js

@@ -0,0 +1,94 @@
+import { setupPicker } from './page-picker.js';
+
+const form = document.querySelector('[data-live-search]');
+if (form) {
+  const results = document.querySelector('#list-results');
+  const status = document.querySelector('#search-status');
+  const error = document.querySelector('#search-error');
+  const search = form.querySelector('input[type="search"]');
+  const fields = [...form.querySelectorAll('input[name],select[name]')];
+  let timer, controller, sequence = 0, composing = false;
+
+  const cancel = () => { clearTimeout(timer); controller?.abort(); sequence++; results.removeAttribute('aria-busy'); };
+  const updateReset = () => {
+    form.querySelector('[data-search-reset]').hidden = !fields.some(field => field.value !== (field.dataset.searchDefault || ''));
+  };
+  const urlFor = parameters => {
+    const url = new URL(form.action);
+    for (const [name, value] of Object.entries(parameters)) {
+      const fallback = fields.find(field => field.name === name)?.dataset.searchDefault || (name === 'seite' ? '1' : '');
+      if (String(value) !== fallback) url.searchParams.set(name, String(value));
+    }
+    return url;
+  };
+  const currentUrl = () => urlFor({ ...Object.fromEntries(new FormData(form)), q: search.value.trim(), seite: 1 });
+  const restoreFilters = url => {
+    for (const field of fields) field.value = url.searchParams.get(field.name) ?? field.dataset.searchDefault ?? '';
+    updateReset();
+  };
+
+  async function load(url, navigation = 'replace', focusResults = false) {
+    cancel(); const request = sequence;
+    controller = new AbortController(); const signal = controller.signal;
+    results.setAttribute('aria-busy', 'true'); error.hidden = true;
+    status.textContent = 'Ergebnisse werden gesucht …';
+    updateReset();
+    try {
+      const response = await fetch(url, { signal, credentials: 'same-origin', headers: { 'X-Requested-With': 'XMLHttpRequest', Accept: 'application/json' } });
+      if (response.redirected || response.status === 401 || response.status === 403) throw new Error('Deine Sitzung ist abgelaufen. Bitte erneut anmelden und die Suche wiederholen.');
+      if (!response.ok) throw new Error('Die Suche konnte nicht geladen werden. Die bisherigen Ergebnisse bleiben sichtbar.');
+      const data = await response.json();
+      if (signal.aborted || request !== sequence) return;
+      if (typeof data.html !== 'string' || !data.parameters || !Number.isInteger(data.total)) throw new Error('Die Suchantwort konnte nicht verarbeitet werden.');
+      const parsed = new DOMParser().parseFromString(data.html, 'text/html');
+      results.replaceChildren(...parsed.body.childNodes);
+      results.querySelectorAll('.content-picker').forEach(picker => setupPicker(picker));
+      // Keep create/upload forms outside the replaced list on the same filtered screen.
+      const context = { _list_query: data.parameters.q, _list_status: data.parameters.status, _list_limit: data.parameters.limit, _list_page: data.parameters.seite, q: data.parameters.q, archiv: data.parameters.archiv, seite: data.parameters.seite };
+      for (const [name, value] of Object.entries(context)) if (value !== undefined) {
+        document.querySelectorAll(`form:not([data-live-search]) input[type="hidden"][name="${name}"]`).forEach(input => { input.value = value; });
+      }
+      const canonical = urlFor(data.parameters);
+      if (navigation !== 'none' && canonical.href !== location.href) history[navigation === 'push' ? 'pushState' : 'replaceState'](null, '', canonical);
+      status.textContent = `${data.total} Treffer${data.parameters.q ? ` für „${data.parameters.q}“` : ''}.`;
+      if (focusResults) { results.focus({ preventScroll: true }); results.scrollIntoView({ block: 'start' }); }
+    } catch (failure) {
+      if (signal.aborted || request !== sequence) return;
+      error.querySelector('[role="alert"]').textContent = failure instanceof TypeError ? 'Verbindung unterbrochen. Die bisherigen Ergebnisse bleiben sichtbar.' : failure.message;
+      error.hidden = false; status.textContent = 'Suche fehlgeschlagen.';
+    } finally {
+      if (request === sequence) results.removeAttribute('aria-busy');
+    }
+  }
+
+  const queue = () => {
+    cancel(); updateReset();
+    if (composing) return;
+    error.hidden = true; status.textContent = 'Ergebnisse werden gesucht …'; results.setAttribute('aria-busy', 'true');
+    timer = setTimeout(() => load(currentUrl()), search.value ? 220 : 0);
+  };
+  search.addEventListener('compositionstart', () => { composing = true; cancel(); });
+  search.addEventListener('compositionend', () => { composing = false; queue(); });
+  search.addEventListener('input', queue);
+  form.addEventListener('change', event => { if (event.target.matches('select')) load(currentUrl(), 'push'); });
+  form.addEventListener('submit', event => { event.preventDefault(); if (!composing) load(currentUrl()); });
+  form.querySelector('[data-search-reset]').addEventListener('click', event => {
+    event.preventDefault(); const url = new URL(form.action); restoreFilters(url); load(url, 'push'); search.focus();
+  });
+  results.addEventListener('click', event => {
+    const link = event.target.closest('.pager a');
+    if (!link || event.button !== 0 || event.ctrlKey || event.metaKey || event.shiftKey || event.altKey) return;
+    event.preventDefault(); load(new URL(link.href), 'push', true);
+  });
+  // A delayed response must not overwrite a form the user has just started editing.
+  results.addEventListener('input', () => {
+    if (results.getAttribute('aria-busy') === 'true') { cancel(); status.textContent = 'Suche angehalten, während du einen Eintrag bearbeitest.'; }
+  });
+  window.addEventListener('popstate', () => { const url = new URL(location.href); restoreFilters(url); load(url, 'none'); });
+  window.addEventListener('pagehide', cancel);
+  document.querySelector('#search-retry').addEventListener('click', () => load(currentUrl()));
+  form.classList.add('live-search-ready');
+  status.textContent = 'Die Suche aktualisiert sich beim Tippen.';
+  search.setAttribute('aria-controls', results.id);
+  updateReset();
+}