Service worker exploration for offline

nextjournal · Aug 28, 2023 · bfcdaaa · bfcdaaa
1 parent 0846e10
commit bfcdaaa
Show file tree

Hide file tree

Showing 2 changed files with 16 additions and 1 deletion.
diff --git a/public/js/service_worker.js b/public/js/service_worker.js
@@ -0,0 +1,12 @@
+self.addEventListener('install', event => {
+    console.log('install', event)
+});
+
+self.addEventListener('activate', event => {
+    console.log('activate', event)
+    clients.claim();
+});
+
+self.addEventListener('fetch', event => {
+    console.log('fetch', event)
+});
diff --git a/src/nextjournal/clerk/view.clj b/src/nextjournal/clerk/view.clj
@@ -66,4 +66,7 @@
 let state = " (-> state v/->edn escape-closing-script-tag pr-str) ".replaceAll('nextjournal.clerk.view/escape-closing-script-tag', 'script')
 viewer.init(viewer.read_string(state))\n"
        (when conn-ws?
-         "viewer.connect(document.location.origin.replace(/^http/, 'ws') + '/_ws')")])]))
+         "if ('serviceWorker' in navigator) {
+  navigator.serviceWorker.register('/js/service_worker.js');
+};
+viewer.connect(document.location.origin.replace(/^http/, 'ws') + '/_ws')")])]))