Fixes #5125 - Preserve FileDialog selection colors when navigating via dotdot

Terminal.Gui/Views/FileDialogs/FileDialog.TableView.cs

@@ -160,8 +160,11 @@ private Scheme ColorGetter (CellColorGetterArgs args)
         {
             Normal = new Attribute (foreground, background),
             HotNormal = new Attribute (foreground, background),
-            Focus = new Attribute (background, foreground),
-            HotFocus = new Attribute (background, foreground)
+            Focus = args.RowScheme.Focus,
+            HotFocus = args.RowScheme.HotFocus,
+            Active = args.RowScheme.Active,
+            HotActive = args.RowScheme.HotActive,
+            Disabled = args.RowScheme.Disabled
         };
     }
 

Tests/UnitTestsParallelizable/Views/FileDialogColorTests.cs

@@ -0,0 +1,49 @@
+// Copilot
+
+using System.IO.Abstractions.TestingHelpers;
+using System.Reflection;
+
+namespace UnitTests.Views;
+
+public class FileDialogColorTests
+{
+    [Fact]
+    public void ParentRowColorGetter_UsesSelectionScheme_WhenNavigatingUp ()
+    {
+        MockFileSystem fileSystem = new ();
+        fileSystem.AddDirectory ("/test-dir/sub-dir");
+
+        using SaveDialog dialog = new TestableSaveDialog (fileSystem);
+        dialog.PushState (fileSystem.DirectoryInfo.New ("/test-dir/sub-dir"), false);
+
+        FieldInfo? tableViewField = typeof (FileDialog).GetField ("_tableView", BindingFlags.Instance | BindingFlags.NonPublic);
+        Assert.NotNull (tableViewField);
+
+        TableView tableView = Assert.IsType<TableView> (tableViewField!.GetValue (dialog));
+        Assert.NotNull (tableView.Table);
+        Assert.True (dialog.State!.Children [0].IsParent);
+
+        ColumnStyle nameStyle = tableView.Style.GetOrCreateColumnStyle (0);
+        Assert.NotNull (nameStyle.ColorGetter);
+
+        object cellValue = tableView.Table [0, 0];
+        string representation = cellValue.ToString () ?? string.Empty;
+        Scheme rowScheme = tableView.GetScheme ();
+        Scheme effectiveScheme = nameStyle.ColorGetter! (
+                                                    new CellColorGetterArgs (
+                                                                              tableView.Table,
+                                                                              0,
+                                                                              0,
+                                                                              cellValue,
+                                                                              representation,
+                                                                              rowScheme))!;
+
+        Assert.Equal (rowScheme.Focus, effectiveScheme.Focus);
+        Assert.Equal (rowScheme.Active, effectiveScheme.Active);
+    }
+
+    private sealed class TestableSaveDialog : SaveDialog
+    {
+        public TestableSaveDialog (MockFileSystem fileSystem) : base (fileSystem) { }
+    }
+}