From f6f64297aa030cd3fbad4bbb9e322e469bc762e8 Mon Sep 17 00:00:00 2001
From: Shin'ya Ueoka <ueokande@i-beam.org>
Date: Sun, 4 Feb 2018 19:27:22 +0900
Subject: first webextension test

---
 e2e/ambassador/src/client/ipc.js | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 e2e/ambassador/src/client/ipc.js

(limited to 'e2e/ambassador/src/client/ipc.js')

diff --git a/e2e/ambassador/src/client/ipc.js b/e2e/ambassador/src/client/ipc.js
new file mode 100644
index 0000000..9f232ea
--- /dev/null
+++ b/e2e/ambassador/src/client/ipc.js
@@ -0,0 +1,29 @@
+import { METHOD_REQUEST, METHOD_RESPONSE } from '../shared/messages';
+
+const generateId = () => {
+  return Math.random().toString();
+};
+
+const send = (message) => {
+  return new Promise((resolve) => {
+    let id = generateId();
+    let callback = (e) => {
+      let packet = e.data;
+      if (e.source !== window || packet.method !== METHOD_RESPONSE ||
+        packet.id !== id) {
+        return;
+      }
+      window.removeEventListener('message', callback);
+      resolve(packet.message);
+    };
+    window.addEventListener('message', callback);
+
+    window.postMessage({
+      id,
+      method: METHOD_REQUEST,
+      message
+    }, window.origin);
+  });
+};
+
+export { send };
-- 
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