edit

XLAB2/EkzDirectoryDialogService.cs

@@ -0,0 +1,58 @@
+using System.Collections.Generic;
+using System.Windows;
+
+namespace XLAB2
+{
+    internal interface IEkzDirectoryDialogService
+    {
+        EkzDirectoryItem ShowEkzEditDialog(EkzDirectoryItem seed, bool isNew, IReadOnlyList<EkzDirectoryItem> existingItems, EkzDirectoryService service);
+
+        bool Confirm(string message);
+
+        void ShowError(string message);
+
+        void ShowInfo(string message);
+
+        void ShowWarning(string message);
+    }
+
+    internal sealed class EkzDirectoryDialogService : IEkzDirectoryDialogService
+    {
+        private readonly Window _owner;
+
+        public EkzDirectoryDialogService(Window owner)
+        {
+            _owner = owner;
+        }
+
+        public bool Confirm(string message)
+        {
+            return MessageBox.Show(_owner, message, "ПСВ", MessageBoxButton.YesNo, MessageBoxImage.Question) == MessageBoxResult.Yes;
+        }
+
+        public EkzDirectoryItem ShowEkzEditDialog(EkzDirectoryItem seed, bool isNew, IReadOnlyList<EkzDirectoryItem> existingItems, EkzDirectoryService service)
+        {
+            var viewModel = new EkzEditWindowViewModel(seed, isNew, existingItems, service);
+            var window = new EkzEditWindow(viewModel);
+            window.Owner = _owner;
+
+            var result = window.ShowDialog();
+            return result.HasValue && result.Value ? viewModel.ToResult() : null;
+        }
+
+        public void ShowError(string message)
+        {
+            MessageBox.Show(_owner, message, "ПСВ", MessageBoxButton.OK, MessageBoxImage.Error);
+        }
+
+        public void ShowInfo(string message)
+        {
+            MessageBox.Show(_owner, message, "ПСВ", MessageBoxButton.OK, MessageBoxImage.Information);
+        }
+
+        public void ShowWarning(string message)
+        {
+            MessageBox.Show(_owner, message, "ПСВ", MessageBoxButton.OK, MessageBoxImage.Warning);
+        }
+    }
+}