Restore SEBPatch

SafeExamBrowser.SystemComponents.Contracts/Keyboard/Events/LayoutChangedEventHandler.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/.
+ */
+
+namespace SafeExamBrowser.SystemComponents.Contracts.Keyboard.Events
+{
+	/// <summary>
+	/// Indicates that the active keyboard layout has changed.
+	/// </summary>
+	public delegate void LayoutChangedEventHandler(IKeyboardLayout layout);
+}

SafeExamBrowser.SystemComponents.Contracts/Keyboard/IKeyboard.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 System;
+using System.Collections.Generic;
+using SafeExamBrowser.SystemComponents.Contracts.Keyboard.Events;
+
+namespace SafeExamBrowser.SystemComponents.Contracts.Keyboard
+{
+	/// <summary>
+	/// Defines the functionality of the keyboard system component.
+	/// </summary>
+	public interface IKeyboard : ISystemComponent
+	{
+		/// <summary>
+		/// Fired when the active keyboard layout changed.
+		/// </summary>
+		event LayoutChangedEventHandler LayoutChanged;
+
+		/// <summary>
+		/// Activates the keyboard layout with the given identifier.
+		/// </summary>
+		void ActivateLayout(Guid id);
+
+		/// <summary>
+		/// Gets all currently available keyboard layouts.
+		/// </summary>
+		IEnumerable<IKeyboardLayout> GetLayouts();
+	}
+}

SafeExamBrowser.SystemComponents.Contracts/Keyboard/IKeyboardLayout.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 System;
+
+namespace SafeExamBrowser.SystemComponents.Contracts.Keyboard
+{
+	/// <summary>
+	/// Defines a keyboard layout which can be loaded by the application.
+	/// </summary>
+	public interface IKeyboardLayout
+	{
+		/// <summary>
+		/// The three-letter ISO code of the culture to which this keyboard layout is associated.
+		/// </summary>
+		string CultureCode { get; }
+
+		/// <summary>
+		/// The culture name of this keyboard layout.
+		/// </summary>
+		string CultureName { get; }
+
+		/// <summary>
+		/// The unique identifier of the keyboard layout.
+		/// </summary>
+		Guid Id { get; }
+
+		/// <summary>
+		/// Indicates whether this is the currently active keyboard layout.
+		/// </summary>
+		bool IsCurrent { get; }
+
+		/// <summary>
+		/// The name of this keyboard layout.
+		/// </summary>
+		string LayoutName { get; }
+	}
+}