From 88416fcd5424de88c8b1b8e9928f3c14b0c5e9f4 Mon Sep 17 00:00:00 2001
From: Dan Barber <github@danbarber.me>
Date: Tue, 14 Aug 2018 14:14:08 -0400
Subject: [PATCH] Check browser has notification capability

---
 assets/js/services/notifications.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/assets/js/services/notifications.js b/assets/js/services/notifications.js
index 75376cf..bec9df9 100644
--- a/assets/js/services/notifications.js
+++ b/assets/js/services/notifications.js
@@ -1,6 +1,8 @@
 class Notifications {
   constructor() {
-    Notification.requestPermission();
+    if (this.notifications_available) {
+      Notification.requestPermission();
+    }
   }
 
   notifyTurn(player) {
@@ -11,10 +13,14 @@ class Notifications {
   }
 
   notify(options) {
-    if (!document.hasFocus()) {
+    if (this.notifications_available && !document.hasFocus()) {
       new Notification("Chess", options);
     }
   }
+
+  get notifications_available() {
+    window.Notification != undefined;
+  }
 }
 
 export default Notifications;