1 files changed, 18 insertions, 0 deletions
diff --git a/browser/components/aboutlogins/content/utils/controllers.mjs b/browser/components/aboutlogins/content/utils/controllers.mjs
new file mode 100644
index 0000000000..13c46dfcaf
--- /dev/null
+++ b/browser/components/aboutlogins/content/utils/controllers.mjs
@@ -0,0 +1,18 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+// Simple controller wrapper that binds a controller and runs cleanup function
+// https://lit.dev/docs/composition/controllers/
+export const withSimpleController = (host, functionToBind, ...args) =>
+  class {
+    constructor() {
+      host.addController(this);
+    }
+    hostConnected() {
+      this.cleanup = functionToBind?.(host, ...args);
+    }
+    hostDisconnected() {
+      this.cleanup?.();
+    }
+  };