From 9aa24c066bc01deea8ffe3d37f753473669c1fd2 Mon Sep 17 00:00:00 2001
From: Dong Bin <popmessiah@hotmail.com>
Date: Thu, 13 Mar 2025 11:15:50 +0800
Subject: [PATCH] feat: add new StyleClass to ScrollViewer: InsetContent

---
 .../Pages/ScrollViewerDemo.axaml              | 35 +++----------------
 src/Semi.Avalonia/Controls/ScrollViewer.axaml |  6 +++-
 2 files changed, 9 insertions(+), 32 deletions(-)

diff --git a/demo/Semi.Avalonia.Demo/Pages/ScrollViewerDemo.axaml b/demo/Semi.Avalonia.Demo/Pages/ScrollViewerDemo.axaml
index fbacaff..61737a0 100644
--- a/demo/Semi.Avalonia.Demo/Pages/ScrollViewerDemo.axaml
+++ b/demo/Semi.Avalonia.Demo/Pages/ScrollViewerDemo.axaml
@@ -9,9 +9,13 @@
     mc:Ignorable="d">
     <ScrollViewer>
         <StackPanel HorizontalAlignment="Left" Spacing="20">
+            <ToggleSwitch Name="inset" Content="Inset Content"></ToggleSwitch>
+            <ToggleSwitch Name="autohide" Content="Allow AutoHide"></ToggleSwitch>
             <ScrollViewer
                 Width="200"
                 Height="200"
+                AllowAutoHide="{Binding #autohide.IsChecked}"
+                Classes.InsetContent="{Binding #inset.IsChecked}"
                 Margin="10"
                 HorizontalScrollBarVisibility="Auto">
                 <Grid RowDefinitions="Auto,Auto"
@@ -39,37 +43,6 @@
                         Fill="{DynamicResource SemiGreen2}" />
                 </Grid>
             </ScrollViewer>
-            <ScrollViewer
-                Width="200"
-                Height="200"
-                Margin="10"
-                HorizontalScrollBarVisibility="Auto"
-                Theme="{DynamicResource StaticScrollViewer}">
-                <Grid RowDefinitions="Auto,Auto"
-                      ColumnDefinitions="Auto,Auto"
-                      Width="300" Height="300">
-                    <Rectangle
-                        Grid.Row="0" Grid.Column="0"
-                        Width="150"
-                        Height="150"
-                        Fill="{DynamicResource SemiYellow2}" />
-                    <Rectangle
-                        Grid.Row="0" Grid.Column="1"
-                        Width="150"
-                        Height="150"
-                        Fill="{DynamicResource SemiBlue2}" />
-                    <Rectangle
-                        Grid.Row="1" Grid.Column="0"
-                        Width="150"
-                        Height="150"
-                        Fill="{DynamicResource SemiPink2}" />
-                    <Rectangle
-                        Grid.Row="1" Grid.Column="1"
-                        Width="150"
-                        Height="150"
-                        Fill="{DynamicResource SemiGreen2}" />
-                </Grid>
-            </ScrollViewer>
         </StackPanel>
     </ScrollViewer>
 </UserControl>
\ No newline at end of file
diff --git a/src/Semi.Avalonia/Controls/ScrollViewer.axaml b/src/Semi.Avalonia/Controls/ScrollViewer.axaml
index 49e2dc9..a4096a4 100644
--- a/src/Semi.Avalonia/Controls/ScrollViewer.axaml
+++ b/src/Semi.Avalonia/Controls/ScrollViewer.axaml
@@ -229,7 +229,6 @@
                 <Setter Property="Height" Value="2" />
             </Style>
         </Style>
-
     </ControlTheme>
     <ControlTheme x:Key="{x:Type ScrollViewer}" TargetType="ScrollViewer">
         <Setter Property="Background" Value="Transparent" />
@@ -278,9 +277,14 @@
                 <Setter Property="Opacity" Value="1" />
             </Style>
         </Style>
+        <Style Selector="^.InsetContent /template/ ScrollContentPresenter#PART_ContentPresenter">
+            <Setter Property="Grid.RowSpan" Value="1"/>
+            <Setter Property="Grid.ColumnSpan" Value="1"/>
+        </Style>
     </ControlTheme>
 
     <ControlTheme x:Key="StaticScrollViewer" TargetType="ScrollViewer">
+        <!-- This ControlTheme equivalent to default ScrollViewer with InsetContent style class. It exists for easier setting via style.  -->
         <Setter Property="Background" Value="Transparent" />
         <Setter Property="Template">
             <ControlTemplate TargetType="ScrollViewer">