arm powered steam deck

2026-09-15 17:12:59 -04:00 · 2026-08-11 20:36:55 -04:00
parent bd65f93756
commit dfd674a447
7 changed files with 74 additions and 17 deletions
@@ -12,7 +12,7 @@
    <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
    <!-- site-metadata:inject -->
    <!-- analytics:inject -->
-    <script type="module" crossorigin src="/assets/index-CIeAOZ_Y.js"></script>
+    <script type="module" crossorigin src="/assets/index-hzmph71J.js"></script>
    <link rel="stylesheet" crossorigin href="/assets/index-DKoVL79I.css">
  </head>
  <body>
@@ -0,0 +1,50 @@
+// Undocked Page Exit Guard
+// Purpose: Asks the browser to confirm document-level navigation while the current driver's rover is undocked.
+// Scope: Owns only the native beforeunload lifecycle; it does not render UI or attempt to replace browser safety dialogs.
+import { useEffect } from 'react';
+import { useControlSelector } from '../../controls/index.js';
+import { useTelemetrySelector } from '../../context/TelemetryContext.jsx';
+
+function selectHomeBaseState(frame) {
+  const homeBase = frame?.sensors?.chargingSources?.homeBase;
+
+  /*
+    Missing telemetry must remain distinct from a real "not on the home base"
+    reading. Treating the initial empty frame as undocked would enable the exit
+    warning before the browser has received enough information to justify it.
+  */
+  return typeof homeBase === 'boolean' ? homeBase : null;
+}
+
+export default function UndockedPageExitGuard() {
+  const roverId = useControlSelector((control) => control.state.roverId);
+  const homeBaseState = useTelemetrySelector(roverId, selectHomeBaseState);
+  const shouldConfirmExit = Boolean(roverId) && homeBaseState === false;
+
+  useEffect(() => {
+    if (!shouldConfirmExit) return undefined;
+
+    function handleBeforeUnload(event) {
+      /*
+        Browsers intentionally own the wording and presentation of this dialog.
+        preventDefault is the modern signal, while assigning returnValue keeps
+        the confirmation working in browsers that still require the legacy part
+        of the beforeunload contract.
+      */
+      event.preventDefault();
+      event.returnValue = true;
+    }
+
+    window.addEventListener('beforeunload', handleBeforeUnload);
+    return () => {
+      /*
+        Removing the listener as soon as the rover docks or the assignment ends
+        prevents ordinary spectators and completed drivers from seeing a stale
+        leave-page confirmation.
+      */
+      window.removeEventListener('beforeunload', handleBeforeUnload);
+    };
+  }, [shouldConfirmExit]);
+
+  return null;
+}
@@ -26,6 +26,7 @@ import {
 import useLayoutMode from '../hooks/useLayoutMode.js';
 import { DriverLayoutProvider } from '../layouts/driver/DriverLayoutContext.jsx';
 import DriverLayoutRoot from '../layouts/driver/DriverLayoutRoot.jsx';
+import UndockedPageExitGuard from '../components/UndockedPageExitGuard/index.jsx';

 /* Driver-page compositions live under layouts/driver. App retains only global providers, overlays, and route-level state. */
 function DriverPageRoot() {
@@ -92,6 +93,12 @@ function DriverPageContent({ layout }) {
  }, []);
  return (
    <ControlSystemProvider>
+      {/*
+        Keep document-exit protection inside the control provider so it follows
+        the same assigned-rover identity as every driving command. Mounting it
+        only on the driver page leaves spectator and utility routes unchanged.
+      */}
+      <UndockedPageExitGuard />
      <KeyboardInputManager />
      <GamepadInputManager />
      <main className={`relative flex w-full flex-col ${themeGapClass} text-base`}>