Restore SEBPatch

SafeExamBrowser.UserInterface.Desktop/Windows/ExamSelectionDialog.xaml.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.Collections.Generic;
+using System.Windows;
+using System.Windows.Controls;
+using SafeExamBrowser.I18n.Contracts;
+using SafeExamBrowser.Server.Contracts.Data;
+using SafeExamBrowser.UserInterface.Contracts.Windows;
+using SafeExamBrowser.UserInterface.Contracts.Windows.Data;
+
+namespace SafeExamBrowser.UserInterface.Desktop.Windows
+{
+	public partial class ExamSelectionDialog : Window, IExamSelectionDialog
+	{
+		private readonly IText text;
+
+		public ExamSelectionDialog(IEnumerable<Exam> exams, IText text)
+		{
+			this.text = text;
+
+			InitializeComponent();
+			InitializeExamSelectionDialog(exams);
+		}
+
+		public ExamSelectionDialogResult Show(IWindow parent = null)
+		{
+			return Dispatcher.Invoke(() =>
+			{
+				var result = new ExamSelectionDialogResult { Success = false };
+
+				if (parent is Window)
+				{
+					Owner = parent as Window;
+					WindowStartupLocation = WindowStartupLocation.CenterOwner;
+				}
+
+				if (ShowDialog() is true)
+				{
+					result.SelectedExam = ExamList.SelectedItem as Exam;
+					result.Success = true;
+				}
+
+				return result;
+			});
+		}
+
+		private void InitializeExamSelectionDialog(IEnumerable<Exam> exams)
+		{
+			Message.Text = text.Get(TextKey.ExamSelectionDialog_Message);
+			Title = text.Get(TextKey.ExamSelectionDialog_Title);
+			WindowStartupLocation = WindowStartupLocation.CenterScreen;
+
+			CancelButton.Content = text.Get(TextKey.ExamSelectionDialog_Cancel);
+			CancelButton.Click += CancelButton_Click;
+
+			SelectButton.Content = text.Get(TextKey.ExamSelectionDialog_Select);
+			SelectButton.Click += ConfirmButton_Click;
+
+			ExamList.ItemsSource = exams;
+			ExamList.SelectionChanged += ExamList_SelectionChanged;
+
+			Loaded += (o, args) => Activate();
+		}
+
+		private void CancelButton_Click(object sender, RoutedEventArgs e)
+		{
+			DialogResult = false;
+			Close();
+		}
+
+		private void ConfirmButton_Click(object sender, RoutedEventArgs e)
+		{
+			DialogResult = true;
+			Close();
+		}
+
+		private void ExamList_SelectionChanged(object sender, SelectionChangedEventArgs e)
+		{
+			SelectButton.IsEnabled = ExamList.SelectedItem != null;
+		}
+	}
+}