Restore SEBPatch

SafeExamBrowser.Client/Operations/BrowserOperation.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 SafeExamBrowser.Core.Contracts.OperationModel;
+using SafeExamBrowser.Core.Contracts.OperationModel.Events;
+using SafeExamBrowser.I18n.Contracts;
+using SafeExamBrowser.Logging.Contracts;
+using SafeExamBrowser.UserInterface.Contracts;
+using SafeExamBrowser.UserInterface.Contracts.Shell;
+
+namespace SafeExamBrowser.Client.Operations
+{
+	internal class BrowserOperation : ClientOperation
+	{
+		private readonly IActionCenter actionCenter;
+		private readonly ILogger logger;
+		private readonly ITaskbar taskbar;
+		private readonly ITaskview taskview;
+		private readonly IUserInterfaceFactory uiFactory;
+
+		public override event ActionRequiredEventHandler ActionRequired { add { } remove { } }
+		public override event StatusChangedEventHandler StatusChanged;
+
+		public BrowserOperation(
+			IActionCenter actionCenter,
+			ClientContext context,
+			ILogger logger,
+			ITaskbar taskbar,
+			ITaskview taskview,
+			IUserInterfaceFactory uiFactory) : base(context)
+		{
+			this.actionCenter = actionCenter;
+			this.logger = logger;
+			this.taskbar = taskbar;
+			this.taskview = taskview;
+			this.uiFactory = uiFactory;
+		}
+
+		public override OperationResult Perform()
+		{
+			logger.Info("Initializing browser...");
+			StatusChanged?.Invoke(TextKey.OperationStatus_InitializeBrowser);
+
+			if (Context.Settings.Browser.EnableBrowser)
+			{
+				Context.Browser.Initialize();
+
+				if (Context.Settings.UserInterface.ActionCenter.EnableActionCenter)
+				{
+					actionCenter.AddApplicationControl(uiFactory.CreateApplicationControl(Context.Browser, Location.ActionCenter), true);
+				}
+
+				if (Context.Settings.UserInterface.Taskbar.EnableTaskbar)
+				{
+					taskbar.AddApplicationControl(uiFactory.CreateApplicationControl(Context.Browser, Location.Taskbar), true);
+				}
+
+				taskview.Add(Context.Browser);
+			}
+			else
+			{
+				logger.Info("Browser application is disabled for this session.");
+			}
+
+			return OperationResult.Success;
+		}
+
+		public override OperationResult Revert()
+		{
+			logger.Info("Terminating browser...");
+			StatusChanged?.Invoke(TextKey.OperationStatus_TerminateBrowser);
+
+			if (Context.Settings.Browser.EnableBrowser)
+			{
+				Context.Browser.Terminate();
+			}
+			else
+			{
+				logger.Info("Browser application was disabled for this session.");
+			}
+
+			return OperationResult.Success;
+		}
+	}
+}