From f50795cd25abe32b0c7aa2d4511d56d70f6c7d5a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9C=9B=E5=B0=98=E7=A9=BA=E5=BF=A7?=
 <wckfxxjstdwckyxphdhqxg@outlook.com>
Date: Fri, 18 Apr 2025 19:09:48 +0800
Subject: [PATCH] feat: add VerticalSplitView control theme with responsive
 styles

---
 src/Semi.Avalonia/Controls/SplitView.axaml | 256 +++++++++++++++++++++
 1 file changed, 256 insertions(+)

diff --git a/src/Semi.Avalonia/Controls/SplitView.axaml b/src/Semi.Avalonia/Controls/SplitView.axaml
index 6376346..db8088b 100644
--- a/src/Semi.Avalonia/Controls/SplitView.axaml
+++ b/src/Semi.Avalonia/Controls/SplitView.axaml
@@ -233,6 +233,262 @@
             </Style>
         </Style>
 
+        <Style Selector="^:lightDismiss /template/ Rectangle#LightDismissLayer">
+            <Setter Property="Fill" Value="{DynamicResource SplitViewMaskBrush}" />
+        </Style>
+        <Style Selector="^:overlay:open /template/ Rectangle#LightDismissLayer">
+            <Setter Property="IsVisible" Value="True" />
+        </Style>
+        <Style Selector="^:compactoverlay:open /template/ Rectangle#LightDismissLayer">
+            <Setter Property="IsVisible" Value="True" />
+        </Style>
+    </ControlTheme>
+    <ControlTheme x:Key="VerticalSplitView" TargetType="SplitView">
+        <Setter Property="OpenPaneLength" Value="{DynamicResource SplitViewOpenPaneThemeLength}" />
+        <Setter Property="CompactPaneLength" Value="{DynamicResource SplitViewCompactPaneThemeLength}" />
+        <Setter Property="PaneBackground" Value="{DynamicResource SplitViewPaneBackground}" />
+
+        <Style Selector="^:left">
+            <Setter Property="Template">
+                <ControlTemplate TargetType="SplitView">
+                    <Grid Name="Container" Background="{TemplateBinding Background}">
+                        <Grid.RowDefinitions>
+                            <!--  why is this throwing a binding error?  -->
+                            <RowDefinition
+                                Height="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=TemplateSettings.PaneColumnGridLength}" />
+                            <RowDefinition Height="*" />
+                        </Grid.RowDefinitions>
+
+                        <Panel
+                            Name="PART_PaneRoot"
+                            VerticalAlignment="Top"
+                            Background="{TemplateBinding PaneBackground}"
+                            ClipToBounds="True"
+                            ZIndex="100">
+                            <ContentPresenter
+                                Name="PART_PanePresenter"
+                                Content="{TemplateBinding Pane}"
+                                ContentTemplate="{TemplateBinding PaneTemplate}" />
+                            <Rectangle
+                                Name="HCPaneBorder"
+                                Height="1"
+                                VerticalAlignment="Bottom"
+                                Fill="{DynamicResource SplitViewSeparatorBackground}" />
+                        </Panel>
+
+                        <Panel Name="ContentRoot">
+                            <ContentPresenter
+                                Name="PART_ContentPresenter"
+                                Content="{TemplateBinding Content}"
+                                ContentTemplate="{TemplateBinding ContentTemplate}" />
+                            <Rectangle
+                                Name="LightDismissLayer"
+                                Fill="Transparent"
+                                IsVisible="False" />
+                        </Panel>
+
+                    </Grid>
+                </ControlTemplate>
+            </Setter>
+
+            <Style Selector="^:overlay">
+                <Style Selector="^ /template/ Panel#PART_PaneRoot">
+                    <Setter Property="Height"
+                            Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=TemplateSettings.ClosedPaneWidth}" />
+                    <Setter Property="Grid.RowSpan" Value="1" />
+                    <Setter Property="Grid.Row" Value="0" />
+                </Style>
+                <Style Selector="^ /template/ Panel#ContentRoot">
+                    <Setter Property="Grid.Row" Value="1" />
+                    <Setter Property="Grid.RowSpan" Value="2" />
+                </Style>
+            </Style>
+
+            <Style Selector="^:compactinline">
+                <Style Selector="^ /template/ Panel#PART_PaneRoot">
+                    <Setter Property="Grid.RowSpan" Value="1" />
+                    <Setter Property="Grid.Row" Value="0" />
+                    <Setter Property="Height"
+                            Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=TemplateSettings.ClosedPaneWidth}" />
+                </Style>
+                <Style Selector="^ /template/ Panel#ContentRoot">
+                    <Setter Property="Grid.Row" Value="1" />
+                    <Setter Property="Grid.RowSpan" Value="1" />
+                </Style>
+            </Style>
+
+            <Style Selector="^:compactoverlay">
+                <Style Selector="^ /template/ Panel#PART_PaneRoot">
+                    <!--  RowSpan should be 2  -->
+                    <Setter Property="Grid.RowSpan" Value="1" />
+                    <Setter Property="Grid.Row" Value="0" />
+                    <Setter Property="Height"
+                            Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=TemplateSettings.ClosedPaneWidth}" />
+                </Style>
+                <Style Selector="^ /template/ Panel#ContentRoot">
+                    <Setter Property="Grid.Row" Value="1" />
+                    <Setter Property="Grid.RowSpan" Value="1" />
+                </Style>
+            </Style>
+
+            <Style Selector="^:inline">
+                <Style Selector="^ /template/ Panel#PART_PaneRoot">
+                    <Setter Property="Grid.RowSpan" Value="1" />
+                    <Setter Property="Grid.Row" Value="0" />
+                    <Setter Property="Height"
+                            Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=TemplateSettings.ClosedPaneWidth}" />
+                </Style>
+                <Style Selector="^ /template/ Panel#ContentRoot">
+                    <Setter Property="Grid.Row" Value="1" />
+                    <Setter Property="Grid.RowSpan" Value="1" />
+                </Style>
+            </Style>
+        </Style>
+
+        <Style Selector="^:right">
+            <Setter Property="Template">
+                <ControlTemplate>
+                    <Grid Name="Container" Background="{TemplateBinding Background}">
+                        <Grid.RowDefinitions>
+                            <RowDefinition Height="*" />
+                            <RowDefinition
+                                Height="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=TemplateSettings.PaneColumnGridLength}" />
+                        </Grid.RowDefinitions>
+
+                        <Panel
+                            Name="PART_PaneRoot"
+                            VerticalAlignment="Bottom"
+                            Background="{TemplateBinding PaneBackground}"
+                            ClipToBounds="True"
+                            ZIndex="100">
+                            <ContentPresenter
+                                Name="PART_PanePresenter"
+                                Content="{TemplateBinding Pane}"
+                                ContentTemplate="{TemplateBinding PaneTemplate}" />
+                            <Rectangle
+                                Name="HCPaneBorder"
+                                Height="1"
+                                VerticalAlignment="Top"
+                                Fill="{DynamicResource SplitViewSeparatorBackground}" />
+                        </Panel>
+
+                        <Panel Name="ContentRoot">
+                            <ContentPresenter
+                                Name="PART_ContentPresenter"
+                                Content="{TemplateBinding Content}"
+                                ContentTemplate="{TemplateBinding ContentTemplate}" />
+                            <Rectangle Name="LightDismissLayer" IsVisible="False" />
+                        </Panel>
+
+                    </Grid>
+                </ControlTemplate>
+            </Setter>
+
+            <Style Selector="^:overlay">
+                <Style Selector="^ /template/ Panel#PART_PaneRoot">
+                    <Setter Property="Height"
+                            Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=TemplateSettings.ClosedPaneWidth}" />
+                    <Setter Property="Grid.RowSpan" Value="2" />
+                    <Setter Property="Grid.Row" Value="1" />
+                </Style>
+                <Style Selector="^ /template/ Panel#ContentRoot">
+                    <Setter Property="Grid.Row" Value="0" />
+                    <Setter Property="Grid.RowSpan" Value="2" />
+                </Style>
+            </Style>
+
+            <Style Selector="^:compactinline">
+                <Style Selector="^ /template/ Panel#PART_PaneRoot">
+                    <Setter Property="Grid.RowSpan" Value="1" />
+                    <Setter Property="Grid.Row" Value="1" />
+                    <Setter Property="Height"
+                            Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=TemplateSettings.ClosedPaneWidth}" />
+                </Style>
+                <Style Selector="^ /template/ Panel#ContentRoot">
+                    <Setter Property="Grid.Row" Value="0" />
+                    <Setter Property="Grid.RowSpan" Value="1" />
+                </Style>
+            </Style>
+
+            <Style Selector="^:compactoverlay">
+                <Style Selector="^ /template/ Panel#PART_PaneRoot">
+                    <Setter Property="Grid.RowSpan" Value="2" />
+                    <Setter Property="Grid.Row" Value="1" />
+                    <Setter Property="Height"
+                            Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=TemplateSettings.ClosedPaneWidth}" />
+                </Style>
+                <Style Selector="^ /template/ Panel#ContentRoot">
+                    <Setter Property="Grid.Row" Value="0" />
+                    <Setter Property="Grid.RowSpan" Value="1" />
+                </Style>
+            </Style>
+
+            <Style Selector="^:inline">
+                <Style Selector="^ /template/ Panel#PART_PaneRoot">
+                    <Setter Property="Grid.RowSpan" Value="1" />
+                    <Setter Property="Grid.Row" Value="1" />
+                    <Setter Property="Height"
+                            Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=TemplateSettings.ClosedPaneWidth}" />
+                </Style>
+                <Style Selector="^ /template/ Panel#ContentRoot">
+                    <Setter Property="Grid.Row" Value="0" />
+                    <Setter Property="Grid.RowSpan" Value="1" />
+                </Style>
+            </Style>
+        </Style>
+
+        <Style Selector="^:open">
+            <Style Selector="^ /template/ Panel#PART_PaneRoot">
+                <Setter Property="Transitions">
+                    <Transitions>
+                        <DoubleTransition
+                            Easing="{StaticResource SplitViewPaneAnimationEasing}"
+                            Property="Height"
+                            Duration="{StaticResource SplitViewPaneAnimationOpenDuration}" />
+                    </Transitions>
+                </Setter>
+                <Setter Property="Height"
+                        Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=OpenPaneLength}" />
+            </Style>
+            <Style Selector="^ /template/ Rectangle#LightDismissLayer">
+                <Setter Property="Transitions">
+                    <Transitions>
+                        <DoubleTransition
+                            Easing="{StaticResource SplitViewPaneAnimationEasing}"
+                            Property="Opacity"
+                            Duration="{StaticResource SplitViewPaneAnimationOpenDuration}" />
+                    </Transitions>
+                </Setter>
+                <Setter Property="Opacity" Value="1.0" />
+            </Style>
+        </Style>
+
+        <Style Selector="^:closed">
+            <Style Selector="^ /template/ Panel#PART_PaneRoot">
+                <Setter Property="Transitions">
+                    <Transitions>
+                        <DoubleTransition
+                            Easing="{StaticResource SplitViewPaneAnimationEasing}"
+                            Property="Height"
+                            Duration="{StaticResource SplitViewPaneAnimationCloseDuration}" />
+                    </Transitions>
+                </Setter>
+                <Setter Property="Height"
+                        Value="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=TemplateSettings.ClosedPaneWidth}" />
+            </Style>
+            <Style Selector="^ /template/ Rectangle#LightDismissLayer">
+                <Setter Property="Transitions">
+                    <Transitions>
+                        <DoubleTransition
+                            Easing="{StaticResource SplitViewPaneAnimationEasing}"
+                            Property="Opacity"
+                            Duration="{StaticResource SplitViewPaneAnimationCloseDuration}" />
+                    </Transitions>
+                </Setter>
+                <Setter Property="Opacity" Value="0.0" />
+            </Style>
+        </Style>
+
         <Style Selector="^:lightDismiss /template/ Rectangle#LightDismissLayer">
             <Setter Property="Fill" Value="{DynamicResource SplitViewMaskBrush}" />
         </Style>