XFEEDToolBox

using System.Text;
using Microsoft.UI.Xaml.Markup;

namespace XFEEDToolBox.Controls;

public sealed partial class GalaxyFilterPanel
{
    private void InstallStaticCheckBoxTemplate()=>Resources[typeof(CheckBox)]=CreateStaticCheckBoxStyle();
    internal static Style CreateStaticCheckBoxStyle()
    {
        // The platform AnimatedAccept glyph can retain its initial frame even
        // after CheckBox has entered CheckedNormal. Keep native CheckBox input,
        // accessibility and three-state semantics, with explicit static marks.
        var states=new StringBuilder();
        foreach(var value in new[]{"Unchecked","Checked","Indeterminate"})
        foreach(var interaction in new[]{"Normal","PointerOver","Pressed","Disabled"})
        {
            var selected=value!="Unchecked";
            states.Append($"""
                <VisualState x:Name="{value}{interaction}"><Storyboard>
                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Check" Storyboard.TargetProperty="Visibility"><DiscreteObjectKeyFrame KeyTime="0" Value="{(value=="Checked"?"Visible":"Collapsed")}"/></ObjectAnimationUsingKeyFrames>
                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Mixed" Storyboard.TargetProperty="Visibility"><DiscreteObjectKeyFrame KeyTime="0" Value="{(value=="Indeterminate"?"Visible":"Collapsed")}"/></ObjectAnimationUsingKeyFrames>
                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Box" Storyboard.TargetProperty="Fill"><DiscreteObjectKeyFrame KeyTime="0"><DiscreteObjectKeyFrame.Value><SolidColorBrush Color="{(selected?"#FFAE48":"#111923")}"/></DiscreteObjectKeyFrame.Value></DiscreteObjectKeyFrame></ObjectAnimationUsingKeyFrames>
                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Box" Storyboard.TargetProperty="Stroke"><DiscreteObjectKeyFrame KeyTime="0"><DiscreteObjectKeyFrame.Value><SolidColorBrush Color="{(selected||interaction is "PointerOver" or "Pressed"?"#FFAE48":"#8493A3")}"/></DiscreteObjectKeyFrame.Value></DiscreteObjectKeyFrame></ObjectAnimationUsingKeyFrames>
                    <DoubleAnimation Storyboard.TargetName="Root" Storyboard.TargetProperty="Opacity" To="{(interaction=="Disabled"?"0.4":"1")}" Duration="0"/>
                </Storyboard></VisualState>
                """);
        }
        return (Style)XamlReader.Load($$"""
            <Style xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" TargetType="CheckBox">
                <Setter Property="Foreground" Value="#E8EFF8"/>
                <Setter Property="MinHeight" Value="32"/><Setter Property="Padding" Value="9,4,0,4"/>
                <Setter Property="UseSystemFocusVisuals" Value="True"/>
                <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
                <Setter Property="VerticalContentAlignment" Value="Center"/>
                <Setter Property="Template"><Setter.Value><ControlTemplate TargetType="CheckBox">
                    <Grid x:Name="Root" Background="Transparent">
                        <VisualStateManager.VisualStateGroups><VisualStateGroup x:Name="CombinedStates">{{states}}</VisualStateGroup></VisualStateManager.VisualStateGroups>
                        <Grid.ColumnDefinitions><ColumnDefinition Width="20"/><ColumnDefinition Width="*"/></Grid.ColumnDefinitions>
                        <Grid Width="20" Height="20" VerticalAlignment="Center">
                            <Rectangle x:Name="Box" RadiusX="4" RadiusY="4" StrokeThickness="1.2" Fill="#111923" Stroke="#8493A3"/>
                            <Path x:Name="Check" Data="M 4,10 L 8,14 L 16,6" Stroke="#101923" StrokeThickness="2" Visibility="Collapsed"/>
                            <Path x:Name="Mixed" Data="M 4,10 L 16,10" Stroke="#101923" StrokeThickness="2" Visibility="Collapsed"/>
                        </Grid>
                        <ContentPresenter Grid.Column="1" Content="{TemplateBinding Content}" ContentTemplate="{TemplateBinding ContentTemplate}" Foreground="{TemplateBinding Foreground}" Margin="{TemplateBinding Padding}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" TextWrapping="Wrap" AutomationProperties.AccessibilityView="Raw"/>
                    </Grid>
                </ControlTemplate></Setter.Value></Setter>
            </Style>
            """);
    }
}