From 1a5daf3d66ed9fdaa86b4043aac0d547e475643b Mon Sep 17 00:00:00 2001
From: Felix Bruns <felix@bruns.hamburg>
Date: Thu, 9 May 2024 18:04:31 +0200
Subject: [PATCH] Lock screen after 1 minut off inactivity

---
 .../proxmox_lister_list_view.dart             | 43 +++++++++++++------
 lib/src/screen_helper.dart                    | 43 +++++++++++++++++++
 2 files changed, 74 insertions(+), 12 deletions(-)

diff --git a/lib/src/proxmox_lister/proxmox_lister_list_view.dart b/lib/src/proxmox_lister/proxmox_lister_list_view.dart
index 2a5d8bd..e633706 100644
--- a/lib/src/proxmox_lister/proxmox_lister_list_view.dart
+++ b/lib/src/proxmox_lister/proxmox_lister_list_view.dart
@@ -36,7 +36,7 @@ class _ProxmoxListerState extends State<ProxmoxListerView> {
     nodes = Future<ProxmoxNodeMap>.delayed(Duration.zero, () => getVms());
 
     Timer.periodic(const Duration(seconds: 3), (_) {
-      syncVMs();
+      syncVMs((_) {});
     });
   }
 
@@ -60,23 +60,33 @@ class _ProxmoxListerState extends State<ProxmoxListerView> {
     return map;
   }
 
-  void syncVMs() async {
+  void syncVMs(Function(Exception) onExcept) async {
     nodes = getVms();
-    await nodes;
+    try {
+      await nodes;
+    } on Exception catch (e) {
+      onExcept(e);
+    }
     setState(() {});
   }
 
   @override
   Widget build(BuildContext context) {
     // infinite touch container to turn screen back on
-    return Stack(
-      children: [
-        Scaffold(
-          appBar: appbar(context),
-          body: bodyBuilder(context),
-        ),
-        screenActivator(),
-      ],
+    return IdleTurnOff(
+      timeout: const Duration(seconds: 60),
+      onExpire: () async {
+        await turnOffScreen();
+      },
+      child: Stack(
+        children: [
+          Scaffold(
+            appBar: appbar(context),
+            body: bodyBuilder(context),
+          ),
+          screenActivator(),
+        ],
+      ),
     );
   }
 
@@ -93,7 +103,16 @@ class _ProxmoxListerState extends State<ProxmoxListerView> {
         IconButton(
           icon: const Icon(Icons.sync),
           onPressed: () {
-            syncVMs();
+            syncVMs((e) {
+              showDialog(
+                  context: context,
+                  builder: (BuildContext ctx) {
+                    return AlertDialog(
+                      title: const Text("Error"),
+                      content: Text(e.toString()),
+                    );
+                  });
+            });
           },
         ),
         IconButton(
diff --git a/lib/src/screen_helper.dart b/lib/src/screen_helper.dart
index 580af19..4443e04 100644
--- a/lib/src/screen_helper.dart
+++ b/lib/src/screen_helper.dart
@@ -1,5 +1,6 @@
 import 'dart:io';
 import 'package:flutter/material.dart';
+import 'package:async/async.dart';
 
 const _off = "1";
 const _on = "0";
@@ -48,3 +49,45 @@ Widget screenActivator() {
     ),
   );
 }
+
+class IdleTurnOff extends StatefulWidget {
+  const IdleTurnOff({
+    super.key,
+    required this.child,
+    required this.timeout,
+    required this.onExpire,
+  });
+
+  final Widget child;
+  final Duration timeout;
+  final Function() onExpire;
+
+  @override
+  State<IdleTurnOff> createState() => _IdleTurnOffState();
+}
+
+class _IdleTurnOffState extends State<IdleTurnOff> {
+  late RestartableTimer _timer;
+
+  @override
+  void initState() {
+    super.initState();
+    _timer = RestartableTimer(widget.timeout, widget.onExpire);
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return KeyboardListener(
+      focusNode: FocusNode(
+        onKeyEvent: (_1, _2) {
+          _timer.reset();
+          return KeyEventResult.ignored;
+        },
+      ),
+      child: Listener(
+        child: widget.child,
+        onPointerDown: (_) => _timer.reset(),
+      ),
+    );
+  }
+}