Restore SEBPatch

2025-06-01 11:44:20 +02:00
commit 8c656e3137
1297 changed files with 142172 additions and 0 deletions
--- a/SafeExamBrowser.UserInterface.Shared/Activators/ActionCenterTouchActivator.cs
+++ b/SafeExamBrowser.UserInterface.Shared/Activators/ActionCenterTouchActivator.cs
@@ -0,0 +1,90 @@
+/*
+ * 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 System.Threading.Tasks;
+using System.Windows;
+using SafeExamBrowser.Logging.Contracts;
+using SafeExamBrowser.UserInterface.Contracts.Shell;
+using SafeExamBrowser.UserInterface.Contracts.Shell.Events;
+using SafeExamBrowser.WindowsApi.Contracts;
+using SafeExamBrowser.WindowsApi.Contracts.Events;
+
+namespace SafeExamBrowser.UserInterface.Shared.Activators
+{
+	public class ActionCenterTouchActivator : TouchActivator, IActionCenterActivator
+	{
+		private const int ACTIVATION_INTERVAL = 100;
+
+		private bool isDown;
+		private ILogger logger;
+		private INativeMethods nativeMethods;
+
+		public event ActivatorEventHandler Activated;
+		public event ActivatorEventHandler Deactivated { add { } remove { } }
+		public event ActivatorEventHandler Toggled { add { } remove { } }
+
+		public ActionCenterTouchActivator(ILogger logger, INativeMethods nativeMethods) : base(nativeMethods)
+		{
+			this.logger = logger;
+			this.nativeMethods = nativeMethods;
+		}
+
+		protected override void OnBeforeResume()
+		{
+			isDown = false;
+		}
+
+		protected override bool Process(MouseButton button, MouseButtonState state, MouseInformation info)
+		{
+			var inActivationArea = 0 < info.X && info.X < SystemParameters.PrimaryScreenWidth * 0.1;
+
+			if (button == MouseButton.Left)
+			{
+				if (state == MouseButtonState.Released)
+				{
+					isDown = false;
+				}
+
+				if (state == MouseButtonState.Pressed && inActivationArea)
+				{
+					isDown = true;
+
+					Task.Delay(ACTIVATION_INTERVAL).ContinueWith(async _ =>
+					{
+						for (var t = 0; t < 4; t++)
+						{
+							if (WasActivated())
+							{
+								break;
+							}
+
+							await Task.Delay(ACTIVATION_INTERVAL);
+						}
+					});
+				}
+			}
+
+			return false;
+		}
+
+		private bool WasActivated()
+		{
+			var (x, y) = nativeMethods.GetCursorPosition();
+			var hasMoved = x > SystemParameters.PrimaryScreenWidth * 0.1;
+			var activate = isDown && hasMoved;
+
+			if (activate)
+			{
+				logger.Debug("Detected activation gesture for action center.");
+				Activated?.Invoke();
+			}
+
+			return activate;
+		}
+	}
+}