1 files changed, 38 insertions, 0 deletions
diff --git a/browser/components/extensions/child/ext-menus-child.js b/browser/components/extensions/child/ext-menus-child.js
new file mode 100644
index 0000000000..2819ec219e
--- /dev/null
+++ b/browser/components/extensions/child/ext-menus-child.js
@@ -0,0 +1,38 @@
+/* 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/. */
+
+"use strict";
+
+ChromeUtils.defineESModuleGetters(this, {
+  ContextMenuChild: "resource:///actors/ContextMenuChild.sys.mjs",
+});
+
+this.menusChild = class extends ExtensionAPI {
+  getAPI(context) {
+    return {
+      menus: {
+        getTargetElement(targetElementId) {
+          let element;
+          let lastMenuTarget = ContextMenuChild.getLastTarget(
+            context.contentWindow.docShell.browsingContext
+          );
+          if (
+            lastMenuTarget &&
+            Math.floor(lastMenuTarget.timeStamp) === targetElementId
+          ) {
+            element = lastMenuTarget.targetRef.get();
+          }
+          if (
+            element &&
+            element.getRootNode({ composed: true }) ===
+              context.contentWindow.document
+          ) {
+            return element;
+          }
+          return null;
+        },
+      },
+    };
+  }
+};