fix: forward ScrollViewerAssist.BubbleVerticalScroll to nested ScrollViewers

Author: corvinsz

src/MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.DataGrid.xaml

@@ -489,7 +489,7 @@
                   BorderThickness="{TemplateBinding BorderThickness}"
                   CornerRadius="{TemplateBinding wpf:DataGridAssist.CornerRadius}"
                   SnapsToDevicePixels="True">
-            <ScrollViewer x:Name="DG_ScrollViewer" Focusable="false">
+            <ScrollViewer x:Name="DG_ScrollViewer" Focusable="false" wpf:ScrollViewerAssist.BubbleVerticalScroll="{Binding Path=(wpf:ScrollViewerAssist.BubbleVerticalScroll), RelativeSource={RelativeSource TemplatedParent}}">
               <ScrollViewer.Template>
                 <ControlTemplate TargetType="{x:Type ScrollViewer}">
                   <Grid>

src/MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.ListBox.xaml

@@ -358,6 +358,7 @@
             <ScrollViewer Padding="{TemplateBinding Padding}"
                           wpf:ScrollViewerAssist.IgnorePadding="{Binding Path=(wpf:ScrollViewerAssist.IgnorePadding), RelativeSource={RelativeSource TemplatedParent}}"
                           wpf:ScrollViewerAssist.PaddingMode="{Binding Path=(wpf:ScrollViewerAssist.PaddingMode), RelativeSource={RelativeSource TemplatedParent}}"
+                          wpf:ScrollViewerAssist.BubbleVerticalScroll="{Binding Path=(wpf:ScrollViewerAssist.BubbleVerticalScroll), RelativeSource={RelativeSource TemplatedParent}}"
                           ClipToBounds="False"
                           Focusable="false">
               <ItemsPresenter ClipToBounds="False" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
@@ -641,7 +642,8 @@
             <ScrollViewer Padding="{TemplateBinding Padding}"
                           Focusable="false"
                           wpf:ScrollViewerAssist.IgnorePadding="{Binding Path=(wpf:ScrollViewerAssist.IgnorePadding), RelativeSource={RelativeSource TemplatedParent}}"
-                          wpf:ScrollViewerAssist.PaddingMode="{Binding Path=(wpf:ScrollViewerAssist.PaddingMode), RelativeSource={RelativeSource TemplatedParent}}">
+                          wpf:ScrollViewerAssist.PaddingMode="{Binding Path=(wpf:ScrollViewerAssist.PaddingMode), RelativeSource={RelativeSource TemplatedParent}}"
+                          wpf:ScrollViewerAssist.BubbleVerticalScroll="{Binding Path=(wpf:ScrollViewerAssist.BubbleVerticalScroll), RelativeSource={RelativeSource TemplatedParent}}">
               <ItemsPresenter SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" />
             </ScrollViewer>
           </Border>

src/MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.ListView.xaml

@@ -34,6 +34,7 @@
                             wpf:ScrollViewerAssist.SyncHorizontalOffset="{Binding HorizontalOffset, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}"
                             wpf:ScrollViewerAssist.IgnorePadding="{Binding Path=(wpf:ScrollViewerAssist.IgnorePadding), RelativeSource={RelativeSource TemplatedParent}}"
                             wpf:ScrollViewerAssist.PaddingMode="{Binding Path=(wpf:ScrollViewerAssist.PaddingMode), RelativeSource={RelativeSource TemplatedParent}}"
+                            wpf:ScrollViewerAssist.BubbleVerticalScroll="{Binding Path=(wpf:ScrollViewerAssist.BubbleVerticalScroll), RelativeSource={RelativeSource TemplatedParent}}"
                             DockPanel.Dock="Top"
                             Focusable="false"
                             HorizontalScrollBarVisibility="Hidden"
@@ -212,9 +213,9 @@
       <converters:ListViewGridViewConverter x:Key="MaterialDesignListViewTemplateConverter">
         <converters:ListViewGridViewConverter.DefaultValue>
           <ControlTemplate TargetType="{x:Type ListView}">
-            <ScrollViewer>
+            <ScrollViewer wpf:ScrollViewerAssist.BubbleVerticalScroll="{Binding Path=(wpf:ScrollViewerAssist.BubbleVerticalScroll), RelativeSource={RelativeSource TemplatedParent}}">
               <ItemsPresenter />
-            </ScrollViewer>
+            </ScrollViewer> 
             <ControlTemplate.Triggers>
               <Trigger Property="IsGrouping" Value="True">
                 <Setter Property="ScrollViewer.CanContentScroll" Value="false" />
@@ -224,7 +225,8 @@
         </converters:ListViewGridViewConverter.DefaultValue>
         <converters:ListViewGridViewConverter.ViewValue>
           <ControlTemplate TargetType="{x:Type ListView}">
-            <ScrollViewer Style="{DynamicResource {x:Static GridView.GridViewScrollViewerStyleKey}}">
+            <ScrollViewer Style="{DynamicResource {x:Static GridView.GridViewScrollViewerStyleKey}}"
+                          wpf:ScrollViewerAssist.BubbleVerticalScroll="{Binding Path=(wpf:ScrollViewerAssist.BubbleVerticalScroll), RelativeSource={RelativeSource TemplatedParent}}">
               <ItemsPresenter />
             </ScrollViewer>
             <ControlTemplate.Triggers>

src/MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.TreeListView.xaml

@@ -284,6 +284,7 @@
                           Style="{DynamicResource {x:Static GridView.GridViewScrollViewerStyleKey}}"
                           wpf:ScrollViewerAssist.IgnorePadding="{Binding Path=(wpf:ScrollViewerAssist.IgnorePadding), RelativeSource={RelativeSource TemplatedParent}}"
                           wpf:ScrollViewerAssist.PaddingMode="{Binding Path=(wpf:ScrollViewerAssist.PaddingMode), RelativeSource={RelativeSource TemplatedParent}}"
+                          wpf:ScrollViewerAssist.BubbleVerticalScroll="{Binding Path=(wpf:ScrollViewerAssist.BubbleVerticalScroll), RelativeSource={RelativeSource TemplatedParent}}"
                           Padding="{TemplateBinding Padding}"
                           Background="{TemplateBinding Background}"
                           CanContentScroll="false"

src/MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.TreeView.xaml

@@ -23,6 +23,7 @@
                           Background="{TemplateBinding Background}"
                           wpf:ScrollViewerAssist.IgnorePadding="{Binding Path=(wpf:ScrollViewerAssist.IgnorePadding), RelativeSource={RelativeSource TemplatedParent}}"
                           wpf:ScrollViewerAssist.PaddingMode="{Binding Path=(wpf:ScrollViewerAssist.PaddingMode), RelativeSource={RelativeSource TemplatedParent}}"
+                          wpf:ScrollViewerAssist.BubbleVerticalScroll="{Binding Path=(wpf:ScrollViewerAssist.BubbleVerticalScroll), RelativeSource={RelativeSource TemplatedParent}}"
                           CanContentScroll="false"
                           Focusable="false"
                           HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}"