Avalonia.TextMate - Review Updates

-Remove apply window updates bool.
-Remove duplicated CurrentHighlightRenderer Background/border settings, this is replaced with a new call for but doesn't answer the review note fully.

src/AvaloniaEdit.Demo/App.xaml.cs

@@ -3,6 +3,9 @@ using Avalonia.Controls.ApplicationLifetimes;
 using Avalonia.Controls.Platform;
 using Avalonia.Markup.Xaml;
 using System;
+using System.ComponentModel;
+using Avalonia.Styling;
+using AvaloniaEdit.Demo.ViewModels;
 
 namespace AvaloniaEdit.Demo
 {
@@ -17,13 +20,12 @@ namespace AvaloniaEdit.Demo
         {
             if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktopLifetime)
             {
-
                 var window = new MainWindow();
-
                 desktopLifetime.MainWindow = window;
-                //PlatformManager.CreateEmbeddableWindow().Crea
-                
-
+                if (window.DataContext is MainWindowViewModel mainWindowViewModel)
+                {
+                    mainWindowViewModel.PropertyChanged +=MainWindowViewModelOnPropertyChanged;
+                }
             }
             else if (ApplicationLifetime is ISingleViewApplicationLifetime singleViewLifetime)
             {
@@ -40,5 +42,16 @@ namespace AvaloniaEdit.Demo
 
             base.OnFrameworkInitializationCompleted();
         }
+
+        private void MainWindowViewModelOnPropertyChanged(object sender, PropertyChangedEventArgs e)
+        {
+            if (DataContext is not MainWindowViewModel mainWindowViewModel) return;
+            if (e.PropertyName == nameof(MainWindowViewModel.SelectedTheme))
+            {
+                RequestedThemeVariant = mainWindowViewModel.SelectedTheme.ThemeName.ToString().Contains("light")
+                    ? ThemeVariant.Light
+                    : ThemeVariant.Dark;
+            }
+        }
     }
 }

src/AvaloniaEdit.Demo/MainWindow.xaml.cs

@@ -154,6 +154,11 @@ namespace AvaloniaEdit.Demo
             {
                 _customMargin.SetDefaultBackgroundBrush();
             }
+            
+            //Applying the Editor background to the whole window for demo sake.
+            e.ApplyBrushAction("editor.background",brush => Background = brush);
+            e.ApplyBrushAction("editor.foreground",brush => Foreground = brush);
+
         }
 
         private void Caret_PositionChanged(object sender, EventArgs e)

src/AvaloniaEdit.TextMate/TextMate.cs

@@ -82,7 +82,7 @@ namespace AvaloniaEdit.TextMate
                 return true;
             }
 
-            public void SetTheme(IRawTheme theme, bool applyWindowProperties = true)
+            public void SetTheme(IRawTheme theme)
             {
                 _textMateRegistry.SetTheme(theme);
 
@@ -93,29 +93,7 @@ namespace AvaloniaEdit.TextMate
 
                 _editorModel?.InvalidateViewPortLines();
 
-                if (Application.Current?.ApplicationLifetime is IClassicDesktopStyleApplicationLifetime
-                    {
-                        MainWindow: Window window
-                    })
-                {
                 _guiColorDictionary = registryTheme.GetGuiColorDictionary();
-                    var themeName = theme.GetName();
-
-                    // Applies to the application on a whole.. Some might want to opt out of this for their own setups.
-                    if (applyWindowProperties)
-                    {
-                        if (themeName != null && themeName.ToLower().Contains("light"))
-                        {
-                            Application.Current.RequestedThemeVariant = ThemeVariant.Light;
-                        }
-                        else
-                        {
-                            Application.Current.RequestedThemeVariant = ThemeVariant.Dark;
-                        }
-                    
-                        ApplyBrushAction("editor.background",brush =>window.Background = brush);
-                        ApplyBrushAction("editor.foreground",brush =>window.Foreground = brush);
-                    }
 
                 ApplyBrushAction("editor.background",brush =>_editor.Background = brush);
                 ApplyBrushAction("editor.foreground",brush =>_editor.Foreground = brush);
@@ -138,11 +116,9 @@ namespace AvaloniaEdit.TextMate
                             _editor.TextArea.TextView.CurrentLineBorder = new Pen(brush); // Todo: VS Code didn't seem to have a border but it might be nice to have that option. For now just make it the same..
                         }))
                 {
-                        _editor.TextArea.TextView.CurrentLineBackground = new SolidColorBrush(CurrentHighlightRendererDefaultBackground);
-                        _editor.TextArea.TextView.CurrentLineBorder = new Pen(new SolidColorBrush(CurrentHighlightRendererDefaultBorder));
+                    _editor.TextArea.TextView.SetDefaultHighlightLineColors();
                 }
                 
-                    
                 //Todo: looks like the margin doesn't have a active line highlight, would be a nice addition
                 if (!ApplyBrushAction("editorLineNumber.foreground",
                         brush => _editor.LineNumbersForeground = brush))
@@ -152,11 +128,7 @@ namespace AvaloniaEdit.TextMate
                 
                 AppliedTheme?.Invoke(this,this);
             }
-            }
             
-            //These come out of CurrentHighlightRenderer sealed class. 
-            public static readonly Color CurrentHighlightRendererDefaultBackground = Color.FromArgb(22, 20, 220, 224);
-            public static readonly Color CurrentHighlightRendererDefaultBorder = Color.FromArgb(52, 0, 255, 110);
 
             public void Dispose()
             {

src/AvaloniaEdit/Rendering/CurrentLineHighlightRenderer.cs

@@ -37,6 +37,12 @@ namespace AvaloniaEdit.Rendering
 
         #region Properties
 
+        public void SetDefaultColors()
+        {
+            BorderPen = new ImmutablePen(new ImmutableSolidColorBrush(DefaultBorder), 1);
+            BackgroundBrush = new ImmutableSolidColorBrush(DefaultBackground);
+        }
+
         public int Line {
             get { return _line; }
             set {

src/AvaloniaEdit/Rendering/TextView.cs

@@ -2099,5 +2099,10 @@ namespace AvaloniaEdit.Rendering
         }
 
         Size IScrollable.Viewport => _scrollViewport;
+
+        public void SetDefaultHighlightLineColors()
+        {
+            _currentLineHighlightRenderer?.SetDefaultColors();
+        }
     }
 }