From 02c0e15781fa0a499c736e710755e799bfaec77d Mon Sep 17 00:00:00 2001
From: Egor Kislitsyn <egor@kislitsyn.com>
Date: Thu, 13 Dec 2018 00:03:50 +0700
Subject: add checkbox to disable web push

---
 src/components/settings/settings.js  |  5 +++++
 src/components/settings/settings.vue | 12 ++++++++++++
 src/i18n/en.json                     |  4 +++-
 src/services/push/push.js            |  4 +++-
 src/sw.js                            | 38 ++++++++++++++++++++++++++++++++++++
 5 files changed, 61 insertions(+), 2 deletions(-)
 create mode 100644 src/sw.js

(limited to 'src')

diff --git a/src/components/settings/settings.js b/src/components/settings/settings.js
index 91a2014a..ca8543d1 100644
--- a/src/components/settings/settings.js
+++ b/src/components/settings/settings.js
@@ -45,6 +45,7 @@ const settings = {
       scopeCopyLocal: user.scopeCopy,
       scopeCopyDefault: this.$t('settings.values.' + instance.scopeCopy),
       stopGifs: user.stopGifs,
+      webPushNotificationsLocal: user.webPushNotifications,
       loopSilentAvailable:
         // Firefox
         Object.getOwnPropertyDescriptor(HTMLVideoElement.prototype, 'mozHasAudio') ||
@@ -134,6 +135,10 @@ const settings = {
     },
     stopGifs (value) {
       this.$store.dispatch('setOption', { name: 'stopGifs', value })
+    },
+    webPushNotificationsLocal (value) {
+      this.$store.dispatch('setOption', { name: 'webPushNotifications', value })
+      if (value) this.$store.dispatch('registerPushNotifications')
     }
   }
 }
diff --git a/src/components/settings/settings.vue b/src/components/settings/settings.vue
index de506e4d..871735fe 100644
--- a/src/components/settings/settings.vue
+++ b/src/components/settings/settings.vue
@@ -128,6 +128,18 @@
             </li>
           </ul>
         </div>
+
+       <div class="setting-item">
+          <h2>{{$t('settings.notifications')}}</h2>
+          <ul class="setting-list">
+            <li>
+              <input type="checkbox" id="webPushNotifications" v-model="webPushNotificationsLocal">
+              <label for="webPushNotifications">
+                {{$t('settings.enable_web_push_notifications')}}
+              </label>
+            </li>
+          </ul>
+        </div>
       </div>
 
       <div :label="$t('settings.theme')" >
diff --git a/src/i18n/en.json b/src/i18n/en.json
index 8fd546ef..76224a03 100644
--- a/src/i18n/en.json
+++ b/src/i18n/en.json
@@ -175,7 +175,9 @@
     "values": {
       "false": "no",
       "true": "yes"
-    }
+    },
+    "notifications": "Notifications",
+    "enable_web_push_notifications": "Enable web push notifications"
   },
   "timeline": {
     "collapse": "Collapse",
diff --git a/src/services/push/push.js b/src/services/push/push.js
index 4a03a73d..58017ed7 100644
--- a/src/services/push/push.js
+++ b/src/services/push/push.js
@@ -1,3 +1,5 @@
+import runtime from 'serviceworker-webpack-plugin/lib/runtime'
+
 function urlBase64ToUint8Array (base64String) {
   const padding = '='.repeat((4 - base64String.length % 4) % 4)
   const base64 = (base64String + padding)
@@ -13,7 +15,7 @@ function isPushSupported () {
 }
 
 function registerServiceWorker () {
-  return navigator.serviceWorker.register('/static/sw.js')
+  return runtime.register()
     .catch((err) => console.error('Unable to register service worker.', err))
 }
 
diff --git a/src/sw.js b/src/sw.js
new file mode 100644
index 00000000..6cecb3f3
--- /dev/null
+++ b/src/sw.js
@@ -0,0 +1,38 @@
+/* eslint-env serviceworker */
+
+import localForage from 'localforage'
+
+function isEnabled () {
+  return localForage.getItem('vuex-lz')
+    .then(data => data.config.webPushNotifications)
+}
+
+function getWindowClients () {
+  return clients.matchAll({ includeUncontrolled: true })
+    .then((clientList) => clientList.filter(({ type }) => type === 'window'))
+}
+
+self.addEventListener('push', (event) => {
+  if (event.data) {
+    event.waitUntil(isEnabled().then((isEnabled) => {
+      return isEnabled && getWindowClients().then((list) => {
+        const data = event.data.json()
+
+        if (list.length === 0) return self.registration.showNotification(data.title, data)
+      })
+    }))
+  }
+})
+
+self.addEventListener('notificationclick', (event) => {
+  event.notification.close()
+
+  event.waitUntil(getWindowClients().then((list) => {
+    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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