Merge pull request #399 from Subhajit-2023-44/pwa

Add PWA (Progressive Web App) done !

manifest.json

@@ -0,0 +1,22 @@
+{
+    "name": "Research-Nexas",
+    "short_name": "Research-Nexas",
+    "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"
+      }
+    ]
+
+  }
+

public/index.html

@@ -8,6 +8,9 @@
     <link rel="stylesheet" type="text/css" href="css/faq_style.css" />
     <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/all.min.css">
     <link href='https://unpkg.com/[email protected]/css/boxicons.min.css' rel='stylesheet'>
+
+    <link rel="manifest" href="/manifest.json">
+
     <title>Research Nexas</title>
 </head>
 
@@ -1097,6 +1100,8 @@ <h2>What feature of Research-Nexas do you find most valuable?</h2>
 
     <script src="script/popup.js"></script>
 
+    <script src="script/scripts.js"></script> <!-- Link to your service worker registration script -->
+
 </body>
 
 </html>

public/script/scripts.js

@@ -0,0 +1,14 @@
+// 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 +1,46 @@
+const CACHE_NAME = 'my-pwa-cache-v1';
+const urlsToCache = [
+  '/',
+  '/index.html',
+  '/styles.css',
+  '/script/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);
+          }
+        })
+      );
+    })
+  );
+});