From 9e4dab398fa9836a35d4f85daf2d5644981faa82 Mon Sep 17 00:00:00 2001
From: Meik <meik.drechsler@consulting4it.de>
Date: Thu, 5 Mar 2026 11:22:17 +0100
Subject: [PATCH] Enable header action button hit-testing in window chrome

---
 MainWindow.xaml    |  8 ++++++--
 MainWindow.xaml.cs | 28 +++++++++++++++++++++++++---
 2 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/MainWindow.xaml b/MainWindow.xaml
index 4498007..89bcc81 100644
--- a/MainWindow.xaml
+++ b/MainWindow.xaml
@@ -353,18 +353,21 @@
                        HorizontalAlignment="Left"
                        Margin="14,14,0,0"
                        x:Name="Logo" />
-                <Border HorizontalAlignment="Right"
+                <Border x:Name="HeaderActionGroup"
+                        HorizontalAlignment="Right"
                         VerticalAlignment="Top"
                         Margin="0,12,12,0"
                         Panel.ZIndex="500"
                         CornerRadius="10"
                         BorderThickness="1"
                         BorderBrush="{DynamicResource panelBorderColor}"
-                        Background="{DynamicResource headerControlBackgroundColor}">
+                        Background="{DynamicResource headerControlBackgroundColor}"
+                        shell:WindowChrome.IsHitTestVisibleInChrome="True">
                     <StackPanel Orientation="Horizontal">
                         <Button x:Name="RefreshIcon"
                                 Style="{StaticResource HeaderGroupButtonStyle}"
                                 ToolTip="Refresh"
+                                shell:WindowChrome.IsHitTestVisibleInChrome="True"
                                 Click="OnRefreshButtonClick">
                             <Image Source="{DynamicResource nav_appbar_refresh}"
                                    Tag="ICO"
@@ -377,6 +380,7 @@
                         <Button x:Name="Close_Text"
                                 Style="{StaticResource HeaderGroupButtonStyle}"
                                 ToolTip="{x:Static resx:Resources.close}"
+                                shell:WindowChrome.IsHitTestVisibleInChrome="True"
                                 Click="OnMinimizeButtonClick">
                             <TextBlock Text="X"
                                        FontSize="15"
diff --git a/MainWindow.xaml.cs b/MainWindow.xaml.cs
index 701f6f4..42608c2 100644
--- a/MainWindow.xaml.cs
+++ b/MainWindow.xaml.cs
@@ -1616,8 +1616,14 @@ namespace C4IT_CustomerPanel
              
         private void GridTop_MouseDown(object sender, MouseButtonEventArgs e)
         {
-            if (e.OriginalSource is DependencyObject source && FindVisualParent<Button>(source) != null)
-                return;
+            if (e.OriginalSource is DependencyObject source)
+            {
+                if (FindVisualParent<Button>(source) != null)
+                    return;
+
+                if (FindVisualParent<Border>(source)?.Name == "HeaderActionGroup")
+                    return;
+            }
 
             if (e.ChangedButton == MouseButton.Left && ConfigSettings.GetConfig()._isDraggable)
                 this.DragMove();
@@ -1653,12 +1659,28 @@ namespace C4IT_CustomerPanel
                 if (source is T target)
                     return target;
 
-                source = VisualTreeHelper.GetParent(source);
+                source = GetParentObject(source);
             }
 
             return null;
         }
 
+        private static DependencyObject GetParentObject(DependencyObject source)
+        {
+            if (source == null)
+                return null;
+
+            if (source is ContentElement contentElement)
+            {
+                DependencyObject parent = ContentOperations.GetParent(contentElement);
+                if (parent == null && contentElement is FrameworkContentElement frameworkContentElement)
+                    parent = frameworkContentElement.Parent;
+                return parent;
+            }
+
+            return VisualTreeHelper.GetParent(source);
+        }
+
         private void App_KeyDown(object sender, KeyEventArgs e)
         {
             if (((Keyboard.Modifiers & ModifierKeys.Alt) == ModifierKeys.Alt) && Keyboard.IsKeyDown(Key.R) && ConfigSettings.GetConfig()._isDraggable)