1 files changed, 25 insertions, 0 deletions
diff --git a/browser/components/messagepreview/actors/AboutMessagePreviewChild.sys.mjs b/browser/components/messagepreview/actors/AboutMessagePreviewChild.sys.mjs
new file mode 100644
index 0000000000..d233f682a1
--- /dev/null
+++ b/browser/components/messagepreview/actors/AboutMessagePreviewChild.sys.mjs
@@ -0,0 +1,25 @@
+/* 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/. */
+
+export class AboutMessagePreviewChild extends JSWindowActorChild {
+  handleEvent(event) {
+    console.log(`Received page event ${event.type}`);
+  }
+
+  actorCreated() {
+    this.exportFunctions();
+  }
+
+  exportFunctions() {
+    const window = this.contentWindow;
+
+    Cu.exportFunction(this.MPShowMessage.bind(this), window, {
+      defineAs: "MPShowMessage",
+    });
+  }
+
+  MPShowMessage(message) {
+    this.sendAsyncMessage(`MessagePreview:SHOW_MESSAGE`, message);
+  }
+}