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Author SHA1 Message Date
Dong Bin
c144056ab0 feat: add basic implementation of window decorations. 2026-03-08 23:33:23 +08:00
2 changed files with 182 additions and 41 deletions

View File

@@ -5,10 +5,12 @@
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:views="clr-namespace:Semi.Avalonia.Demo.Views"
Title="Semi.Avalonia.Demo"
Title="Semi Avalonia Demo"
d:DesignHeight="450"
d:DesignWidth="800"
ExtendClientAreaToDecorationsHint="True"
ExtendClientAreaTitleBarHeightHint="40"
Icon="/Assets/irihi.ico"
mc:Ignorable="d">
<views:MainView />
<views:MainView Margin="{Binding $parent[Window].WindowDecorationMargin}" />
</Window>

View File

@@ -1,66 +1,205 @@
<ResourceDictionary xmlns="https://github.com/avaloniaui"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<ResourceDictionary xmlns="https://github.com/avaloniaui" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<ControlTheme x:Key="CaptionButton" TargetType="Button">
<Setter Property="Foreground" Value="{DynamicResource CaptionButtonForeground}" />
<Setter Property="Background" Value="Transparent" />
<Setter Property="CornerRadius" Value="{StaticResource CaptionButtonCornerRadius}" />
<Setter Property="Padding" Value="{StaticResource CaptionButtonPadding}" />
<Setter Property="Width" Value="{StaticResource CaptionButtonWidth}" />
<Setter Property="Height" Value="{StaticResource CaptionButtonHeight}" />
<Setter Property="Cursor" Value="Hand" />
<Setter Property="VerticalAlignment" Value="Stretch" />
<Setter Property="Template">
<ControlTemplate TargetType="Button">
<ContentPresenter
Name="PART_ContentPresenter"
Padding="{TemplateBinding Padding}"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"
CornerRadius="{TemplateBinding CornerRadius}"
Foreground="{TemplateBinding Foreground}" />
</ControlTemplate>
</Setter>
<Style Selector="^:pointerover">
<Setter Property="Background" Value="{DynamicResource CaptionButtonPointeroverBackground}" />
</Style>
<Style Selector="^:pressed">
<Setter Property="Background" Value="{DynamicResource CaptionButtonPressedBackground}" />
</Style>
</ControlTheme>
<ControlTheme x:Key="{x:Type WindowDrawnDecorations}" TargetType="WindowDrawnDecorations">
<Setter Property="DefaultTitleBarHeight" Value="32" />
<Setter Property="DefaultFrameThickness" Value="0,0,0,0" />
<Setter Property="DefaultFrameThickness" Value="1" />
<Setter Property="DefaultShadowThickness" Value="16" />
<Setter Property="Template">
<WindowDrawnDecorationsTemplate>
<WindowDrawnDecorationsContent>
<WindowDrawnDecorationsContent.Underlay>
<!-- Full-size: covers shadow area + frame + behind client area -->
<!-- Full-size: covers shadow area + frame + behind client area -->
<Panel>
<Border Margin="{TemplateBinding ShadowThickness}"
Background="{DynamicResource WindowBackground}"
BorderThickness="1"
BorderBrush="{DynamicResource WindowBorderBrush}"
BoxShadow="0 8 32 0 #40000000" />
<Border
x:Name="PART_WindowBorder"
Margin="{TemplateBinding ShadowThickness}"
Background="{DynamicResource WindowBackground}"
BorderBrush="{DynamicResource WindowBorderBrush}"
BorderThickness="1"
BoxShadow="0 8 32 0 #40000000" />
<!-- Titlebar: background, title text, and drag area live in underlay -->
<Panel x:Name="PART_TitleBar" VerticalAlignment="Top"
Height="{TemplateBinding TitleBarHeight}"
Background="{DynamicResource SystemControlBackgroundAltHighBrush}"
IsVisible="{TemplateBinding HasTitleBar}"
WindowDecorationProperties.ElementRole="TitleBar" />
</Panel>
</WindowDrawnDecorationsContent.Underlay>
<WindowDrawnDecorationsContent.Overlay>
<!-- Positioned over the titlebar area -->
<DockPanel Height="{TemplateBinding TitleBarHeight}"
VerticalAlignment="Top"
Margin="{TemplateBinding ShadowThickness}">
<StackPanel DockPanel.Dock="Right" Orientation="Horizontal">
<Button x:Name="PART_MinimizeButton" Content="─" />
<Button x:Name="PART_MaximizeButton" Content="□" />
<Button x:Name="PART_CloseButton" Content="✕" />
<!-- Positioned over the titlebar area -->
<Panel x:Name="PART_OverlayWrapper">
<!-- Title text lives in overlay so it renders above client content -->
<Panel
x:Name="PART_TitleTextPanel"
Height="{TemplateBinding TitleBarHeight}"
VerticalAlignment="Top"
IsHitTestVisible="False"
IsVisible="{TemplateBinding HasTitleBar}">
<TextBlock
Margin="12,0,0,0"
VerticalAlignment="Center"
FontSize="12"
Text="{TemplateBinding Title}" />
</Panel>
<StackPanel
x:Name="PART_OverlayPanel"
Height="{TemplateBinding TitleBarHeight}"
HorizontalAlignment="Right"
VerticalAlignment="Top"
IsVisible="{TemplateBinding HasTitleBar}"
Orientation="Horizontal"
Spacing="2"
TextElement.FontSize="10">
<Button
Name="PART_FullScreenButton"
Theme="{StaticResource CaptionButton}"
WindowDecorationProperties.ElementRole="FullScreenButton">
<PathIcon
Name="PART_FullScreenButtonIcon"
Data="{StaticResource WindowExpandGlyph}"
Foreground="{Binding $parent[Button].Foreground}"
Theme="{StaticResource InnerPathIcon}" />
</Button>
<Button
Name="PART_MinimizeButton"
AutomationProperties.Name="Minimize"
Theme="{StaticResource CaptionButton}"
WindowDecorationProperties.ElementRole="MinimizeButton">
<PathIcon
Name="PART_MinimizeButtonIcon"
Data="{StaticResource WindowMinimizeGlyph}"
Foreground="{Binding $parent[Button].Foreground}"
Theme="{StaticResource InnerPathIcon}" />
</Button>
<Button
Name="PART_MaximizeButton"
AutomationProperties.Name="Maximize"
Theme="{StaticResource CaptionButton}"
WindowDecorationProperties.ElementRole="MaximizeButton">
<PathIcon
Name="PART_MaximizeButtonIcon"
Data="{StaticResource WindowMaximizeGlyph}"
Foreground="{Binding $parent[Button].Foreground}"
Theme="{StaticResource InnerPathIcon}" />
</Button>
<Button
Name="PART_CloseButton"
AutomationProperties.Name="Close"
Theme="{StaticResource CaptionButton}"
WindowDecorationProperties.ElementRole="CloseButton">
<PathIcon
Name="PART_CloseButtonIcon"
Data="{StaticResource WindowCloseIconGlyph}"
Foreground="{Binding $parent[Button].Foreground}"
Theme="{StaticResource InnerPathIcon}" />
</Button>
</StackPanel>
<TextBlock Text="{TemplateBinding Title}"
VerticalAlignment="Center"
Margin="12,0"
WindowDecorationProperties.ElementRole="TitleBar" />
</DockPanel>
</Panel>
</WindowDrawnDecorationsContent.Overlay>
<WindowDrawnDecorationsContent.FullscreenPopover>
<!-- Shown on hover at top edge in fullscreen -->
<DockPanel Height="{TemplateBinding TitleBarHeight}"
Background="#E0000000">
<!-- Shown on hover at top edge in fullscreen -->
<DockPanel Height="{TemplateBinding TitleBarHeight}" Background="#E0000000">
<StackPanel DockPanel.Dock="Right" Orientation="Horizontal">
<Button x:Name="PART_MinimizeButton" Content="─" />
<Button x:Name="PART_MaximizeButton" Content="□" />
<Button x:Name="PART_CloseButton" Content="✕" />
<Button
x:Name="PART_PopoverFullScreenButton"
Theme="{StaticResource CaptionButton}"
WindowDecorationProperties.ElementRole="FullScreenButton">
<PathIcon
Data="{StaticResource WindowCollapseGlyph}"
Foreground="{Binding $parent[Button].Foreground}"
Theme="{StaticResource InnerPathIcon}" />
</Button>
</StackPanel>
<TextBlock Text="{TemplateBinding Title}"
Foreground="White"
VerticalAlignment="Center"
Margin="12,0" />
<TextBlock
Margin="12,0"
VerticalAlignment="Center"
Foreground="White"
Text="{TemplateBinding Title}" />
</DockPanel>
</WindowDrawnDecorationsContent.FullscreenPopover>
</WindowDrawnDecorationsContent>
</WindowDrawnDecorationsTemplate>
</Setter>
<!-- Pseudoclass styling -->
<Style Selector="^:maximized /template/ Border">
<Setter Property="BorderThickness" Value="0" />
<Style Selector="^ /template/ Button#PART_CloseButton:pointerover">
<Setter Property="Foreground" Value="{DynamicResource CaptionButtonCloseForeground}" />
<Setter Property="Background" Value="{DynamicResource CaptionButtonClosePointeroverBackground}" />
</Style>
<Style Selector="^:fullscreen /template/ DockPanel">
<Style Selector="^ /template/ Button#PART_CloseButton:pressed">
<Setter Property="Foreground" Value="{DynamicResource CaptionButtonCloseForeground}" />
<Setter Property="Background" Value="{DynamicResource CaptionButtonClosePressedBackground}" />
</Style>
<!-- Shadow: inset border and add drop shadow -->
<Style Selector="^:has-shadow /template/ Panel#PART_UnderlayWrapper">
<Setter Property="Margin" Value="{TemplateBinding ShadowThickness}" />
</Style>
<Style Selector="^:has-shadow /template/ Border#PART_WindowBorder">
<Setter Property="BoxShadow" Value="0 2 10 2 #80000000" />
</Style>
<Style Selector="^:has-shadow /template/ Panel#PART_OverlayWrapper">
<Setter Property="Margin" Value="{TemplateBinding ShadowThickness}" />
</Style>
<!-- Maximized: restore button path changes -->
<Style Selector="^:maximized /template/ Path#PART_MaximizeButtonIcon">
<Setter Property="Data" Value="{StaticResource WindowRestoreGlyph}" />
</Style>
<!-- Border: inset titlebar and buttons inside frame -->
<Style Selector="^:has-border /template/ Panel#PART_TitleTextPanel">
<Setter Property="Margin" Value="1,1,1,0" />
</Style>
<Style Selector="^:has-border /template/ Panel#PART_TitleBar">
<Setter Property="Margin" Value="1,1,1,0" />
</Style>
<Style Selector="^:has-border /template/ StackPanel#PART_OverlayPanel">
<Setter Property="Margin" Value="0,1,1,0" />
</Style>
<!-- Fullscreen: hide overlay and titlebar (popover takes over) -->
<Style Selector="^:fullscreen /template/ Panel#PART_TitleTextPanel">
<Setter Property="IsVisible" Value="False" />
</Style>
<Style Selector="^:fullscreen /template/ StackPanel#PART_OverlayPanel">
<Setter Property="IsVisible" Value="False" />
</Style>
<Style Selector="^:fullscreen /template/ Panel#PART_TitleBar">
<Setter Property="IsVisible" Value="False" />
</Style>
</ControlTheme>