Merge pull request #1029 from Subhajit-2023-44/branch-5

Add/Enable PWA (Progressive Web App) done ! #1010

index.html

@@ -22,6 +22,7 @@
     <link rel="stylesheet" href="index.css">
     <link rel="stylesheet" href="why-us.css">
     <link rel="stylesheet" href="navbar.css">
+    <link rel="manifest" href="/manifest.json">
     <!-- this is for twitter icons -->
     <script src="https://kit.fontawesome.com/3d20c433e1.js" crossorigin="anonymous"></script>
 
@@ -1695,6 +1696,9 @@ <h4>FIND US</h4>
 </html>
 
 <script src="chatbot.js"></script>
+
+<script src="script.js"></script> <!-- Link to your service worker registration script -->
+
 </body>
 
 </html>

manifest.json

@@ -0,0 +1,20 @@
+{
+    "name": "Ticket-Booking",
+    "short_name": "Ticket-Booking",
+    "start_url": "/", 
+    "display": "standalone",
+    "background_color": "#ffffff",
+    "theme_color": "#000000",
+    "icons": [
+      {
+        "src": "/icon-192x192.png",
+        "sizes": "192x192",
+        "type": "image/png"
+      },
+      {
+        "src": "/icon-512x512.png",
+        "sizes": "512x512",
+        "type": "image/png"
+      }
+    ]
+  }

scripts.js

@@ -0,0 +1,12 @@
+// Register the service worker
+if ('serviceWorker' in navigator) {
+    window.addEventListener('load', () => {
+        navigator.serviceWorker.register('/sw.js') // Pointing to the sw.js file
+            .then(registration => {
+                console.log('ServiceWorker registration successful:', registration);
+            })
+            .catch(error => {
+                console.error('ServiceWorker registration failed:', error);
+            });
+    });
+}

sw.js

@@ -0,0 +1,43 @@
+const CACHE_NAME = 'my-pwa-cache-v1';
+const urlsToCache = [
+  '/',
+  '/index.html',
+  '/styles.css',
+  '/scripts.js',
+  '/manifest.json',
+  '/icon-192x192.png',
+  '/icon-512x512.png'
+];
+
+self.addEventListener('install', (event) => {
+  event.waitUntil(
+    caches.open(CACHE_NAME)
+      .then((cache) => {
+        return cache.addAll(urlsToCache);
+      })
+  );
+});
+
+self.addEventListener('fetch', (event) => {
+  event.respondWith(
+    caches.match(event.request)
+      .then((response) => {
+        return response || fetch(event.request);
+      })
+  );
+});
+
+self.addEventListener('activate', (event) => {
+  const cacheWhitelist = [CACHE_NAME];
+  event.waitUntil(
+    caches.keys().then((cacheNames) => {
+      return Promise.all(
+        cacheNames.map((cacheName) => {
+          if (!cacheWhitelist.includes(cacheName)) {
+            return caches.delete(cacheName);
+          }
+        })
+      );
+    })
+  );
+});