From 46fc6ff99c85c13d86524bcb5b80e27bce6988d7 Mon Sep 17 00:00:00 2001
From: robloo <robloo@users.noreply.github.com>
Date: Tue, 14 Mar 2023 13:38:24 -0400
Subject: [PATCH] Fix Menu Popup placement

---
 src/Avalonia.Themes.Fluent/Controls/Menu.xaml | 1 +
 src/Avalonia.Themes.Simple/Controls/Menu.xaml | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/Avalonia.Themes.Fluent/Controls/Menu.xaml b/src/Avalonia.Themes.Fluent/Controls/Menu.xaml
index 692bac958a..039482d70f 100644
--- a/src/Avalonia.Themes.Fluent/Controls/Menu.xaml
+++ b/src/Avalonia.Themes.Fluent/Controls/Menu.xaml
@@ -37,6 +37,7 @@
                    MinWidth="{Binding Bounds.Width, RelativeSource={RelativeSource TemplatedParent}}"
                    IsLightDismissEnabled="True"
                    IsOpen="{TemplateBinding IsSubMenuOpen, Mode=TwoWay}"
+                   PlacementMode="BottomEdgeAlignedLeft"
                    OverlayInputPassThroughElement="{Binding $parent[Menu]}">
               <Border Background="{DynamicResource MenuFlyoutPresenterBackground}"
                       BorderBrush="{DynamicResource MenuFlyoutPresenterBorderBrush}"
diff --git a/src/Avalonia.Themes.Simple/Controls/Menu.xaml b/src/Avalonia.Themes.Simple/Controls/Menu.xaml
index 797aeedd23..f5e0250058 100644
--- a/src/Avalonia.Themes.Simple/Controls/Menu.xaml
+++ b/src/Avalonia.Themes.Simple/Controls/Menu.xaml
@@ -26,8 +26,8 @@
             </ContentPresenter>
             <Popup Name="PART_Popup"
                    IsLightDismissEnabled="True"
-                   IsOpen="{TemplateBinding IsSubMenuOpen,
-                                            Mode=TwoWay}"
+                   IsOpen="{TemplateBinding IsSubMenuOpen, Mode=TwoWay}"
+                   PlacementMode="BottomEdgeAlignedLeft"
                    OverlayInputPassThroughElement="{Binding $parent[Menu]}">
               <Border Background="{DynamicResource ThemeBackgroundBrush}"
                       BorderBrush="{DynamicResource ThemeBorderMidBrush}"