Universal Disappearing Messages

ts/util/universalExpireTimer.ts

@@ -0,0 +1,12 @@
+// Copyright 2021 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+export const ITEM_NAME = 'universalExpireTimer';
+
+export function get(): number {
+  return window.storage.get(ITEM_NAME) || 0;
+}
+
+export function set(newValue: number | undefined): Promise<void> {
+  return window.storage.put(ITEM_NAME, newValue || 0);
+}