Show IBeam cursor for IsTextSelectionEnabled

src/Avalonia.Controls/RichTextBlock.cs

@@ -66,7 +66,7 @@ namespace Avalonia.Controls
         {
             FocusableProperty.OverrideDefaultValue(typeof(RichTextBlock), true);
 
-            AffectsRender<RichTextBlock>(SelectionStartProperty, SelectionEndProperty, SelectionBrushProperty);
+            AffectsRender<RichTextBlock>(SelectionStartProperty, SelectionEndProperty, SelectionBrushProperty, IsTextSelectionEnabledProperty);
         }
 
         public RichTextBlock()

src/Avalonia.Themes.Default/Avalonia.Themes.Default.csproj

@@ -9,6 +9,14 @@
     <ProjectReference Include="..\Markup\Avalonia.Markup.Xaml\Avalonia.Markup.Xaml.csproj" />
     <AvaloniaResource Include="**/*.xaml" />
   </ItemGroup>
+  <ItemGroup>
+    <None Remove="Controls\RichTextBlock.xaml" />
+  </ItemGroup>
+  <ItemGroup>
+    <AvaloniaResource Update="Controls\RichTextBlock.xaml">
+      <Generator>MSBuild:Compile</Generator>
+    </AvaloniaResource>
+  </ItemGroup>
   <Import Project="..\..\build\BuildTargets.targets" />
   <Import Project="..\..\build\Rx.props" />
   <Import Project="..\..\build\ApiDiff.props" />

src/Avalonia.Themes.Default/Controls/RichTextBlock.xaml

@@ -0,0 +1,10 @@
+<Styles xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+    <Design.PreviewWith>
+        <RichTextBlock IsTextSelectionEnabled="True" Text="Preview"/>
+    </Design.PreviewWith>
+
+    <Style Selector="RichTextBlock[IsTextSelectionEnabled=true]">
+      <Setter Property="Cursor" Value="IBeam" />
+    </Style>
+</Styles>

src/Avalonia.Themes.Default/DefaultTheme.xaml

@@ -66,4 +66,5 @@
   <StyleInclude Source="avares://Avalonia.Themes.Default/Controls/FlyoutPresenter.xaml"/>
   <StyleInclude Source="avares://Avalonia.Themes.Default/Controls/MenuFlyoutPresenter.xaml"/>
   <StyleInclude Source="avares://Avalonia.Themes.Default/Controls/ManagedFileChooser.xaml"/>
+  <StyleInclude Source="avares://Avalonia.Themes.Default/Controls/RichTextBlock.xaml"/>
 </Styles>

src/Avalonia.Themes.Fluent/Avalonia.Themes.Fluent.csproj

@@ -10,6 +10,14 @@
     <AvaloniaResource Include="**/*.xaml" />
     <AvaloniaResource Include="Assets\*" />  
   </ItemGroup>
+  <ItemGroup>
+    <None Remove="Controls\RichTextBlock.xaml" />
+  </ItemGroup>
+  <ItemGroup>
+    <AvaloniaResource Update="Controls\RichTextBlock.xaml">
+      <Generator>MSBuild:Compile</Generator>
+    </AvaloniaResource>
+  </ItemGroup>
   <Import Project="..\..\build\BuildTargets.targets" />
   <Import Project="..\..\build\Rx.props" />
   <Import Project="..\..\build\ApiDiff.props" />

src/Avalonia.Themes.Fluent/Controls/FluentControls.xaml

@@ -67,4 +67,5 @@
   <StyleInclude Source="avares://Avalonia.Themes.Fluent/Controls/MenuFlyoutPresenter.xaml"/>
   <!-- ManagedFileChooser comes last because it uses (and overrides) styles for a multitude of other controls...the dialogs were originally UserControls, after all-->
   <StyleInclude Source="avares://Avalonia.Themes.Fluent/Controls/ManagedFileChooser.xaml"/>
+  <StyleInclude Source="avares://Avalonia.Themes.Fluent/Controls/RichTextBlock.xaml"/>
 </Styles>

src/Avalonia.Themes.Fluent/Controls/RichTextBlock.xaml

@@ -0,0 +1,10 @@
+<Styles xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+    <Design.PreviewWith>
+        <RichTextBlock IsTextSelectionEnabled="True" Text="Preview"/>
+    </Design.PreviewWith>
+
+    <Style Selector="RichTextBlock[IsTextSelectionEnabled=true]">
+      <Setter Property="Cursor" Value="IBeam" />
+    </Style>
+</Styles>