From 09147cacea6b80d348d4c8364b2815d9b4cac102 Mon Sep 17 00:00:00 2001
From: Egor Kislitsyn <egor@kislitsyn.com>
Date: Thu, 6 Dec 2018 20:34:00 +0700
Subject: add service worker and push notifications

---
 static/sw.js | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 static/sw.js

(limited to 'static/sw.js')

diff --git a/static/sw.js b/static/sw.js
new file mode 100644
index 00000000..0402a220
--- /dev/null
+++ b/static/sw.js
@@ -0,0 +1,32 @@
+/* eslint-env serviceworker */
+self.addEventListener('push', function (event) {
+  if (event.data) {
+    const data = event.data.json()
+
+    const promiseChain = clients.matchAll({
+      includeUncontrolled: true
+    }).then(function (clientList) {
+      const list = clientList.filter((item) => item.type === 'window')
+      if (list.length) return
+      return self.registration.showNotification(data.title, data)
+    })
+
+    event.waitUntil(promiseChain)
+  }
+})
+
+self.addEventListener('notificationclick', function (event) {
+  event.notification.close()
+
+  event.waitUntil(clients.matchAll({
+    includeUncontrolled: true
+  }).then(function (clientList) {
+    const list = clientList.filter((item) => item.type === 'window')
+
+    for (var i = 0; i < list.length; i++) {
+      var client = list[i]
+      if (client.url === '/' && 'focus' in client) { return client.focus() }
+    }
+    if (clients.openWindow) { return clients.openWindow('/') }
+  }))
+})
-- 
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