From 960ae38ecdc1a6b5a75dce50a2f53c54fa1b9d1f Mon Sep 17 00:00:00 2001
From: Dariusz Komosinski <darek.komosinski@gmail.com>
Date: Sat, 28 Nov 2020 16:51:30 +0100
Subject: [PATCH 1/2] Fix TextBox crashing when PointerMoved gets called and
 text presenter has 0 size.

---
 src/Avalonia.Controls/TextBox.cs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Avalonia.Controls/TextBox.cs b/src/Avalonia.Controls/TextBox.cs
index 0fe3ac62e4..28426ee70f 100644
--- a/src/Avalonia.Controls/TextBox.cs
+++ b/src/Avalonia.Controls/TextBox.cs
@@ -867,7 +867,10 @@ namespace Avalonia.Controls
             {
                 var point = e.GetPosition(_presenter);
 
-                point = new Point(MathUtilities.Clamp(point.X, 0, _presenter.Bounds.Width - 1), MathUtilities.Clamp(point.Y, 0, _presenter.Bounds.Height - 1));
+                point = new Point(
+                    MathUtilities.Clamp(point.X, 0, Math.Max(_presenter.Bounds.Width - 1, 0)),
+                    MathUtilities.Clamp(point.Y, 0, Math.Max(_presenter.Bounds.Height - 1, 0)));
+
                 CaretIndex = SelectionEnd = _presenter.GetCaretIndex(point);
             }
         }

From 16d8bf56a44f41babc353e5fee44033496d5dedf Mon Sep 17 00:00:00 2001
From: Dan Walmsley <dan@walms.co.uk>
Date: Mon, 7 Dec 2020 23:03:05 +0000
Subject: [PATCH 2/2] remove menu shadows from fluent theme as this is not
 compatible with the rounded corners.

---
 src/Avalonia.Themes.Fluent/Controls/ContextMenu.xaml | 1 +
 src/Avalonia.Themes.Fluent/Controls/MenuItem.xaml    | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/Avalonia.Themes.Fluent/Controls/ContextMenu.xaml b/src/Avalonia.Themes.Fluent/Controls/ContextMenu.xaml
index 33447ffd6c..a4e716c7f6 100644
--- a/src/Avalonia.Themes.Fluent/Controls/ContextMenu.xaml
+++ b/src/Avalonia.Themes.Fluent/Controls/ContextMenu.xaml
@@ -39,6 +39,7 @@
   <Setter Property="HorizontalAlignment" Value="Stretch" />
   <Setter Property="TextBlock.FontSize" Value="{DynamicResource ContentControlFontSize}" />
   <Setter Property="TextBlock.FontWeight" Value="Normal" />
+  <Setter Property="WindowManagerAddShadowHint" Value="False" />
   <Setter Property="Template">
     <ControlTemplate>
       <Border Background="{TemplateBinding Background}"
diff --git a/src/Avalonia.Themes.Fluent/Controls/MenuItem.xaml b/src/Avalonia.Themes.Fluent/Controls/MenuItem.xaml
index 1f1dcf22e2..fff7baf3bd 100644
--- a/src/Avalonia.Themes.Fluent/Controls/MenuItem.xaml
+++ b/src/Avalonia.Themes.Fluent/Controls/MenuItem.xaml
@@ -110,7 +110,7 @@
             </Grid>
           </Border>
           <Popup Name="PART_Popup"
-                 WindowManagerAddShadowHint="True"
+                 WindowManagerAddShadowHint="False"
                  PlacementMode="Right"
                  HorizontalOffset="{StaticResource MenuFlyoutSubItemPopupHorizontalOffset}"
                  IsLightDismissEnabled="True"