Restore SEBPatch

SafeExamBrowser.Monitoring/System/SystemSentinel.cs

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+/*
+ * Copyright (c) 2024 ETH Zürich, IT Services
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+using SafeExamBrowser.Logging.Contracts;
+using SafeExamBrowser.Monitoring.Contracts.System;
+using SafeExamBrowser.Monitoring.Contracts.System.Events;
+using SafeExamBrowser.Monitoring.System.Components;
+using SafeExamBrowser.SystemComponents.Contracts.Registry;
+using SafeExamBrowser.WindowsApi.Contracts;
+
+namespace SafeExamBrowser.Monitoring.System
+{
+	public class SystemSentinel : ISystemSentinel
+	{
+		private readonly Cursors cursors;
+		private readonly EaseOfAccess easeOfAccess;
+		private readonly StickyKeys stickyKeys;
+		private readonly SystemEvents systemEvents;
+
+		public event SentinelEventHandler CursorChanged;
+		public event SentinelEventHandler EaseOfAccessChanged;
+		public event SentinelEventHandler StickyKeysChanged;
+		public event SessionChangedEventHandler SessionChanged;
+
+		public SystemSentinel(ILogger logger, INativeMethods nativeMethods, IRegistry registry)
+		{
+			cursors = new Cursors(logger, registry);
+			easeOfAccess = new EaseOfAccess(logger, registry);
+			stickyKeys = new StickyKeys(logger, nativeMethods);
+			systemEvents = new SystemEvents(logger);
+		}
+
+		public bool DisableStickyKeys()
+		{
+			return stickyKeys.Disable();
+		}
+
+		public bool EnableStickyKeys()
+		{
+			return stickyKeys.Enable();
+		}
+
+		public bool RevertStickyKeys()
+		{
+			return stickyKeys.Revert();
+		}
+
+		public void StartMonitoringCursors()
+		{
+			cursors.CursorChanged += (args) => CursorChanged?.Invoke(args);
+			cursors.StartMonitoring();
+		}
+
+		public void StartMonitoringEaseOfAccess()
+		{
+			easeOfAccess.EaseOfAccessChanged += (args) => EaseOfAccessChanged?.Invoke(args);
+			easeOfAccess.StartMonitoring();
+		}
+
+		public void StartMonitoringStickyKeys()
+		{
+			stickyKeys.Changed += (args) => StickyKeysChanged?.Invoke(args);
+			stickyKeys.StartMonitoring();
+		}
+
+		public void StartMonitoringSystemEvents()
+		{
+			systemEvents.SessionChanged += () => SessionChanged?.Invoke();
+			systemEvents.StartMonitoring();
+		}
+
+		public void StopMonitoring()
+		{
+			cursors.StopMonitoring();
+			easeOfAccess.StopMonitoring();
+			stickyKeys.StopMonitoring();
+			systemEvents.StopMonitoring();
+		}
+
+		public bool VerifyCursors()
+		{
+			return cursors.Verify();
+		}
+
+		public bool VerifyEaseOfAccess()
+		{
+			return easeOfAccess.Verify();
+		}
+	}
+}