Hide media by default in notification requests (#29572)

app/javascript/mastodon/features/ui/util/sensitive_media_context.tsx

@@ -0,0 +1,28 @@
+import { createContext, useContext, useMemo } from 'react';
+
+export const SensitiveMediaContext = createContext<{
+  hideMediaByDefault: boolean;
+}>({
+  hideMediaByDefault: false,
+});
+
+export function useSensitiveMediaContext() {
+  return useContext(SensitiveMediaContext);
+}
+
+type ContextValue = React.ContextType<typeof SensitiveMediaContext>;
+
+export const SensitiveMediaContextProvider: React.FC<
+  React.PropsWithChildren<{ hideMediaByDefault: boolean }>
+> = ({ hideMediaByDefault, children }) => {
+  const contextValue = useMemo<ContextValue>(
+    () => ({ hideMediaByDefault }),
+    [hideMediaByDefault],
+  );
+
+  return (
+    <SensitiveMediaContext.Provider value={contextValue}>
+      {children}
+    </SensitiveMediaContext.Provider>
+  );
+};