From 9a9e38d4a8ad6e474602851a40b80a44b06582c8 Mon Sep 17 00:00:00 2001
From: momo5502 <mauriceheumann@gmail.com>
Date: Thu, 25 Sep 2025 19:58:07 +0200
Subject: [PATCH] Show loader when page is updating

---
 page/src/App.tsx       |  36 ++++-
 page/src/animation.css | 311 +++++++++++++++++++++++++++++++++++++++++
 page/src/main.tsx      |  23 ++-
 3 files changed, 362 insertions(+), 8 deletions(-)
 create mode 100644 page/src/animation.css

diff --git a/page/src/App.tsx b/page/src/App.tsx
index 2a12e2fd..82a7561b 100644
--- a/page/src/App.tsx
+++ b/page/src/App.tsx
@@ -3,12 +3,13 @@ import { TooltipProvider } from "@/components/ui/tooltip";
 import { HashRouter, Route, Routes, Navigate } from "react-router-dom";
 import { Playground, storeEmulateData } from "./playground";
 import { LandingPage } from "./landing-page";
-
+import { useEffect, useState } from "react";
 import { useParams } from "react-router-dom";
 
 import "@fontsource/inter/latin.css";
 
 import "./App.css";
+import "./animation.css";
 
 function EmulateFile() {
   const { encodedData } = useParams();
@@ -16,6 +17,38 @@ function EmulateFile() {
   return <Navigate to="/playground" replace />;
 }
 
+function isWindowLoading() {
+  return !!(window as any).loading;
+}
+
+function useLoader() {
+  const [isLoading, setIsLoading] = useState(isWindowLoading());
+
+  useEffect(() => {
+    const id = setInterval(() => {
+      setIsLoading(isWindowLoading());
+    }, 60);
+
+    return () => {
+      clearInterval(id);
+    };
+  });
+
+  return isLoading;
+}
+
+function Loader() {
+  const loading = useLoader();
+
+  if (!loading) {
+    return <></>;
+  }
+
+  return (
+    <div className="fixed z-9999 top-10 right-10 p-8 rounded-2xl ring-of-dots bg-[#00000081]"></div>
+  );
+}
+
 function App() {
   return (
     <ThemeProvider defaultTheme="dark" storageKey="vite-ui-theme">
@@ -28,6 +61,7 @@ function App() {
             <Route path="/emulate/:encodedData?" element={<EmulateFile />} />
           </Routes>
         </HashRouter>
+        <Loader />
       </TooltipProvider>
     </ThemeProvider>
   );
diff --git a/page/src/animation.css b/page/src/animation.css
new file mode 100644
index 00000000..204d33b0
--- /dev/null
+++ b/page/src/animation.css
@@ -0,0 +1,311 @@
+:root {
+  --ring-full-color: #ffffff00;
+  --ring-half-color: #ffffff75;
+}
+
+/**
+  * Ring of dots
+  *
+  * @author jh3y
+*/
+@-webkit-keyframes ring-of-dots {
+  0% {
+    -webkit-box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 var(--ring-half-color),
+      12.4698px -15.63663px 0 0 var(--ring-full-color);
+    box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 var(--ring-half-color),
+      12.4698px -15.63663px 0 0 var(--ring-full-color);
+  }
+  14.28571% {
+    -webkit-box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 var(--ring-half-color),
+      -4.45042px -19.49856px 0 0 var(--ring-full-color),
+      12.4698px -15.63663px 0 0 white;
+    box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 var(--ring-half-color),
+      -4.45042px -19.49856px 0 0 var(--ring-full-color),
+      12.4698px -15.63663px 0 0 white;
+  }
+  28.57143% {
+    -webkit-box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 var(--ring-half-color),
+      -18.01938px -8.67767px 0 0 var(--ring-full-color),
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+    box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 var(--ring-half-color),
+      -18.01938px -8.67767px 0 0 var(--ring-full-color),
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+  }
+  42.85714% {
+    -webkit-box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 var(--ring-half-color),
+      -18.01938px 8.67767px 0 0 var(--ring-full-color),
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+    box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 var(--ring-half-color),
+      -18.01938px 8.67767px 0 0 var(--ring-full-color),
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+  }
+  57.14286% {
+    -webkit-box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 var(--ring-half-color),
+      -4.45042px 19.49856px 0 0 var(--ring-full-color),
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+    box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 var(--ring-half-color),
+      -4.45042px 19.49856px 0 0 var(--ring-full-color),
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+  }
+  71.42857% {
+    -webkit-box-shadow:
+      20px 0px 0 0 var(--ring-half-color),
+      12.4698px 15.63663px 0 0 var(--ring-full-color),
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+    box-shadow:
+      20px 0px 0 0 var(--ring-half-color),
+      12.4698px 15.63663px 0 0 var(--ring-full-color),
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+  }
+  85.71429% {
+    -webkit-box-shadow:
+      20px 0px 0 0 var(--ring-full-color),
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 var(--ring-half-color);
+    box-shadow:
+      20px 0px 0 0 var(--ring-full-color),
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 var(--ring-half-color);
+  }
+  100% {
+    -webkit-box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 var(--ring-half-color),
+      12.4698px -15.63663px 0 0 var(--ring-full-color);
+    box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 var(--ring-half-color),
+      12.4698px -15.63663px 0 0 var(--ring-full-color);
+  }
+}
+@keyframes ring-of-dots {
+  0% {
+    -webkit-box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 var(--ring-half-color),
+      12.4698px -15.63663px 0 0 var(--ring-full-color);
+    box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 var(--ring-half-color),
+      12.4698px -15.63663px 0 0 var(--ring-full-color);
+  }
+  14.28571% {
+    -webkit-box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 var(--ring-half-color),
+      -4.45042px -19.49856px 0 0 var(--ring-full-color),
+      12.4698px -15.63663px 0 0 white;
+    box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 var(--ring-half-color),
+      -4.45042px -19.49856px 0 0 var(--ring-full-color),
+      12.4698px -15.63663px 0 0 white;
+  }
+  28.57143% {
+    -webkit-box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 var(--ring-half-color),
+      -18.01938px -8.67767px 0 0 var(--ring-full-color),
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+    box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 var(--ring-half-color),
+      -18.01938px -8.67767px 0 0 var(--ring-full-color),
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+  }
+  42.85714% {
+    -webkit-box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 var(--ring-half-color),
+      -18.01938px 8.67767px 0 0 var(--ring-full-color),
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+    box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 var(--ring-half-color),
+      -18.01938px 8.67767px 0 0 var(--ring-full-color),
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+  }
+  57.14286% {
+    -webkit-box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 var(--ring-half-color),
+      -4.45042px 19.49856px 0 0 var(--ring-full-color),
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+    box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 var(--ring-half-color),
+      -4.45042px 19.49856px 0 0 var(--ring-full-color),
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+  }
+  71.42857% {
+    -webkit-box-shadow:
+      20px 0px 0 0 var(--ring-half-color),
+      12.4698px 15.63663px 0 0 var(--ring-full-color),
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+    box-shadow:
+      20px 0px 0 0 var(--ring-half-color),
+      12.4698px 15.63663px 0 0 var(--ring-full-color),
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 white;
+  }
+  85.71429% {
+    -webkit-box-shadow:
+      20px 0px 0 0 var(--ring-full-color),
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 var(--ring-half-color);
+    box-shadow:
+      20px 0px 0 0 var(--ring-full-color),
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 white,
+      12.4698px -15.63663px 0 0 var(--ring-half-color);
+  }
+  100% {
+    -webkit-box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 var(--ring-half-color),
+      12.4698px -15.63663px 0 0 var(--ring-full-color);
+    box-shadow:
+      20px 0px 0 0 white,
+      12.4698px 15.63663px 0 0 white,
+      -4.45042px 19.49856px 0 0 white,
+      -18.01938px 8.67767px 0 0 white,
+      -18.01938px -8.67767px 0 0 white,
+      -4.45042px -19.49856px 0 0 var(--ring-half-color),
+      12.4698px -15.63663px 0 0 var(--ring-full-color);
+  }
+}
+
+.ring-of-dots:before {
+  animation: ring-of-dots 1s infinite linear reverse;
+  border-radius: 10px;
+  content: "";
+  display: block;
+  height: 10px;
+  width: 10px;
+}
diff --git a/page/src/main.tsx b/page/src/main.tsx
index 794b4af8..e4c11801 100644
--- a/page/src/main.tsx
+++ b/page/src/main.tsx
@@ -4,15 +4,24 @@ import "./index.css";
 import App from "./App.tsx";
 import { registerSW } from "virtual:pwa-register";
 
+(window as any).loading = false;
+
+registerSW({
+  onNeedRefresh() {
+    setTimeout(() => {
+      window.location.reload();
+    }, 5000);
+  },
+  onOfflineReady() {},
+  onRegisteredSW(_, registration) {
+    registration?.addEventListener("updatefound", () => {
+      (window as any).loading = true;
+    });
+  },
+});
+
 createRoot(document.getElementById("root")!).render(
   <StrictMode>
     <App />
   </StrictMode>,
 );
-
-registerSW({
-  onNeedRefresh() {
-    window.location.reload();
-  },
-  onOfflineReady() {},
-});