Function getFolderCapabilities

public/js/folderManager.js:469–498

(folder, sourceId = '')

window.__FR_CAPS_INFLIGHT = _capsInflight;

async function getFolderCapabilities(folder, sourceId = '') {
  if (!folder) return null;

  if (_capsCache.has(folder)) {
    return _capsCache.get(folder);
  }
  if (_capsInflight.has(folder)) {
    return _capsInflight.get(folder);
  }

  const p = (async () => {
    try {
      const activeSourceId = sourceId || getActiveSourceId();
      const sourceParam = activeSourceId ? `&sourceId=${encodeURIComponent(activeSourceId)}` : '';
      const res = await fetch(`/api/folder/capabilities.php?folder=${encodeURIComponent(folder)}${sourceParam}`, { credentials: 'include' });
      if (!res.ok) return null;
      const caps = await res.json();
      _capsCache.set(folder, caps || null);
      return caps || null;
    } catch (e) {
      _capsCache.set(folder, null);
      return null;
    } finally {
      _capsInflight.delete(folder);
    }
  })();

  _capsInflight.set(folder, p);
  return p;
}
async function applyFolderCapabilities(folder) {
  try {
    const caps = await getFolderCapabilities(folder);