1 files changed, 30 insertions, 0 deletions
diff --git a/app/assets/javascripts/lib/utils/favicon.js b/app/assets/javascripts/lib/utils/favicon.js
new file mode 100644
index 00000000000..47596a76306
--- /dev/null
+++ b/app/assets/javascripts/lib/utils/favicon.js
@@ -0,0 +1,30 @@
+import { FaviconOverlayManager } from '@gitlab/favicon-overlay';
+import { memoize } from 'lodash';
+
+// FaviconOverlayManager is a glorious singleton/static class. Let's start to encapsulate that with this helper.
+const getDefaultFaviconManager = memoize(async () => {
+  await FaviconOverlayManager.initialize({ faviconSelector: '#favicon' });
+
+  return FaviconOverlayManager;
+});
+
+export const setFaviconOverlay = async (path) => {
+  const manager = await getDefaultFaviconManager();
+
+  manager.setFaviconOverlay(path);
+};
+
+export const resetFavicon = async () => {
+  const manager = await getDefaultFaviconManager();
+
+  manager.resetFaviconOverlay();
+};
+
+/**
+ * Clears the cached memoization of the default manager.
+ *
+ * This is needed for determinism in tests.
+ */
+export const clearMemoizeCache = () => {
+  getDefaultFaviconManager.cache.clear();
+};