Move app/javascript/hooks to app/javascript/mastodon/hooks (#34077)

app/javascript/mastodon/hooks/useSearchParam.ts

@@ -0,0 +1,31 @@
+import { useMemo, useCallback } from 'react';
+
+import { useLocation, useHistory } from 'react-router';
+
+export function useSearchParams() {
+  const { search } = useLocation();
+
+  return useMemo(() => new URLSearchParams(search), [search]);
+}
+
+export function useSearchParam(name: string, defaultValue?: string) {
+  const searchParams = useSearchParams();
+  const history = useHistory();
+
+  const value = searchParams.get(name) ?? defaultValue;
+
+  const setValue = useCallback(
+    (value: string | null) => {
+      if (value === null) {
+        searchParams.delete(name);
+      } else {
+        searchParams.set(name, value);
+      }
+
+      history.push({ search: searchParams.toString() });
+    },
+    [history, name, searchParams],
+  );
+
+  return [value, setValue] as const;
+}