fix(web): boot rehydrate normalizes transfers; paused has its own visual

2026-05-02 19:10:29 +02:00
parent 61be9d013f
commit 33cfc66ac4
4 changed files with 138 additions and 5 deletions
@@ -54,6 +54,23 @@ export function supportsDnDHandles(): boolean {
    && typeof (DataTransferItem.prototype as unknown as { getAsFileSystemHandle?: unknown }).getAsFileSystemHandle === 'function';
 }

+/**
+ * Silently query the current permission state on a stored handle.
+ * Never prompts; returns whatever the browser reports right now. Used by the
+ * boot-time rehydrate path so we can auto-resume only when permission is
+ * already 'granted' and avoid a "user gesture required" failure for 'prompt'.
+ */
+export async function queryHandlePermission(
+  handle: FileSystemHandle,
+  mode: 'read' | 'readwrite',
+): Promise<PermissionState> {
+  const handleAny = handle as unknown as {
+    queryPermission?: (opts: { mode: string }) => Promise<PermissionState>;
+  };
+  if (typeof handleAny.queryPermission !== 'function') return 'denied';
+  return handleAny.queryPermission({ mode });
+}
+
 /**
 * Re-prompt for permission on a stored handle. Returns 'granted', 'denied', or 'prompt'.
 * Some non-standard FS Access surfaces don't expose `queryPermission`/`requestPermission` —