1 files changed, 40 insertions, 0 deletions
diff --git a/browser/components/sessionstore/content/content-sessionStore.js b/browser/components/sessionstore/content/content-sessionStore.js
new file mode 100644
index 000000000..e3e956ef2
--- /dev/null
+++ b/browser/components/sessionstore/content/content-sessionStore.js
@@ -0,0 +1,40 @@
+/* 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/. */
+
+function debug(msg) {
+  Services.console.logStringMessage("SessionStoreContent: " + msg);
+}
+
+/**
+ * Listens for and handles content events that we need for the
+ * session store service to be notified of state changes in content.
+ */
+var EventListener = {
+
+  DOM_EVENTS: [
+    "pageshow", "change", "input"
+  ],
+
+  init: function () {
+    this.DOM_EVENTS.forEach(e => addEventListener(e, this, true));
+  },
+
+  handleEvent: function (event) {
+    switch (event.type) {
+      case "pageshow":
+        if (event.persisted)
+          sendAsyncMessage("SessionStore:pageshow");
+        break;
+      case "input":
+      case "change":
+        sendAsyncMessage("SessionStore:input");
+        break;
+      default:
+        debug("received unknown event '" + event.type + "'");
+        break;
+    }
+  }
+};
+
+EventListener.init();