Add an example of a single root for Avalonia app

Pure.DI.sln

@@ -98,6 +98,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WeatherForecast", "samples\
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MinimalWebAPI", "samples\MinimalWebAPI\MinimalWebAPI.csproj", "{60F18CFA-957B-488F-8292-467D92C17267}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SingleRootAvaloniaApp", "samples\SingleRootAvaloniaApp\SingleRootAvaloniaApp.csproj", "{7FCFD4F6-AFB8-479C-A103-AEBC2FC282A8}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -200,6 +202,10 @@ Global
 		{60F18CFA-957B-488F-8292-467D92C17267}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{60F18CFA-957B-488F-8292-467D92C17267}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{60F18CFA-957B-488F-8292-467D92C17267}.Release|Any CPU.Build.0 = Release|Any CPU
+		{7FCFD4F6-AFB8-479C-A103-AEBC2FC282A8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{7FCFD4F6-AFB8-479C-A103-AEBC2FC282A8}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{7FCFD4F6-AFB8-479C-A103-AEBC2FC282A8}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{7FCFD4F6-AFB8-479C-A103-AEBC2FC282A8}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(NestedProjects) = preSolution
 		{7C9E056B-CBA9-4548-9CDB-C5CE03C491B0} = {8163CDD7-7018-4301-A984-803C3807A6A6}
@@ -225,5 +231,6 @@ Global
 		{D1C043C4-ED8F-45C5-8077-EF10AA71B951} = {FA80D231-C641-4A49-99C6-0C065D818B07}
 		{9A3E2271-3090-4BCE-BB48-6C0724CFBE44} = {FA80D231-C641-4A49-99C6-0C065D818B07}
 		{60F18CFA-957B-488F-8292-467D92C17267} = {FA80D231-C641-4A49-99C6-0C065D818B07}
+		{7FCFD4F6-AFB8-479C-A103-AEBC2FC282A8} = {FA80D231-C641-4A49-99C6-0C065D818B07}
 	EndGlobalSection
 EndGlobal

samples/Clock/Clock.csproj

@@ -12,6 +12,7 @@
         <InternalsVisibleTo Include="WinFormsApp" />
         <InternalsVisibleTo Include="WinFormsAppNetCore" />
         <InternalsVisibleTo Include="AvaloniaApp" />
+        <InternalsVisibleTo Include="SingleRootAvaloniaApp" />
         <InternalsVisibleTo Include="BlazorWebAssemblyApp" />
         <InternalsVisibleTo Include="BlazorServerApp" />
         <InternalsVisibleTo Include="MAUIApp" />

samples/SingleRootAvaloniaApp/App.axaml

@@ -0,0 +1,13 @@
+<Application xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             x:Class="AvaloniaApp.App"
+             xmlns:local="using:AvaloniaApp"
+             RequestedThemeVariant="Default">
+    <Application.Resources>
+        <local:Composition x:Key="Composition" />
+    </Application.Resources>
+    <!-- "Default" ThemeVariant follows system theme variant. "Dark" or "Light" are other available options. -->
+    <Application.Styles>
+        <FluentTheme />
+    </Application.Styles>
+</Application>

samples/SingleRootAvaloniaApp/App.axaml.cs

@@ -0,0 +1,24 @@
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Markup.Xaml;
+
+namespace AvaloniaApp;
+
+public class App : Application
+{
+    public override void Initialize() => AvaloniaXamlLoader.Load(this);
+
+    public override void OnFrameworkInitializationCompleted()
+    {
+        if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop
+            && Resources["Composition"] is Composition composition)
+        {
+            // Assignment of the main window
+            desktop.MainWindow = composition.App.MainWindow;
+            // Handles disposables
+            desktop.Exit += (_, _) => composition.Dispose();
+        }
+
+        base.OnFrameworkInitializationCompleted();
+    }
+}

samples/SingleRootAvaloniaApp/AppDataContext.cs

@@ -0,0 +1,13 @@
+namespace AvaloniaApp;
+
+using Clock.ViewModels;
+using Views;
+
+internal class AppDataContext(
+    Lazy<MainWindow> mainWindow,
+    IClockViewModel clockViewModel)
+{
+    public MainWindow MainWindow => mainWindow.Value;
+
+    public IClockViewModel ClockViewModel => clockViewModel;
+}

samples/SingleRootAvaloniaApp/Composition.cs

@@ -0,0 +1,31 @@
+// ReSharper disable UnusedMember.Local
+// ReSharper disable UnusedMember.Global
+// ReSharper disable RedundantNameQualifier
+// ReSharper disable ArrangeTypeMemberModifiers
+namespace AvaloniaApp;
+
+using Clock.Models;
+using Clock.ViewModels;
+using Pure.DI;
+using static Pure.DI.Lifetime;
+
+internal partial class Composition
+{
+    void Setup() => DI.Setup(nameof(Composition))
+        // A single compositional root for the application
+        .Root<AppDataContext>("App")
+
+        .Bind().As(Singleton).To<AppDataContext>()
+
+        // View Models
+        .Bind().To<ClockViewModel>()
+
+        // Models
+        .Bind().To<Log<TT>>()
+        .Bind().To(_ => TimeSpan.FromSeconds(1))
+        .Bind().As(Singleton).To<Clock.Models.Timer>()
+        .Bind().As(PerBlock).To<SystemClock>()
+
+        // Infrastructure
+        .Bind().To<Dispatcher>();
+}

samples/SingleRootAvaloniaApp/Dispatcher.cs

@@ -0,0 +1,10 @@
+namespace AvaloniaApp;
+
+using Clock.ViewModels;
+
+// ReSharper disable once ClassNeverInstantiated.Global
+internal class Dispatcher: IDispatcher
+{
+    public void Dispatch(Action action) =>
+        Avalonia.Threading.Dispatcher.UIThread.Post(action);
+}

samples/SingleRootAvaloniaApp/Program.cs

@@ -0,0 +1,21 @@
+using Avalonia;
+// ReSharper disable ClassNeverInstantiated.Global
+
+namespace AvaloniaApp;
+
+public class Program
+{
+    // Initialization code. Don't use any Avalonia, third-party APIs or any
+    // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
+    // yet and stuff might break.
+    [STAThread]
+    public static void Main(string[] args) => BuildAvaloniaApp()
+        .StartWithClassicDesktopLifetime(args);
+
+    // Avalonia configuration, don't remove; also used by visual designer.
+    private static AppBuilder BuildAvaloniaApp()
+        => AppBuilder.Configure<App>()
+            .UsePlatformDetect()
+            .WithInterFont()
+            .LogToTrace();
+}

samples/SingleRootAvaloniaApp/SingleRootAvaloniaApp.csproj

@@ -0,0 +1,26 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>$(BaseTargetFramework)</TargetFramework>
+        <OutputType>WinExe</OutputType>
+        <BuiltInComInteropSupport>true</BuiltInComInteropSupport>
+        <ApplicationManifest>app.manifest</ApplicationManifest>
+        <AvaloniaUseCompiledBindingsByDefault>true</AvaloniaUseCompiledBindingsByDefault>
+        <NoWarn>NU1801</NoWarn>
+        <RootNamespace>AvaloniaApp</RootNamespace>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <AvaloniaResource Include="Assets\**"/>
+        <ProjectReference Include="..\..\src\Pure.DI.Core\Pure.DI.Core.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false"/>
+        <ProjectReference Include="..\..\src\Pure.DI\Pure.DI.csproj" OutputItemType="Analyzer" ReferenceOutputAssembly="false"/>
+        <ProjectReference Include="..\Clock\Clock.csproj"/>
+        <PackageReference Include="Avalonia" Version="11.0.10" />
+        <PackageReference Include="Avalonia.Desktop" Version="11.0.10" />
+        <PackageReference Include="Avalonia.Themes.Fluent" Version="11.0.10" />
+        <PackageReference Include="Avalonia.Fonts.Inter" Version="11.0.10" />
+        <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
+        <PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="11.0.10" />
+    </ItemGroup>
+
+</Project>

samples/SingleRootAvaloniaApp/Views/MainWindow.axaml

@@ -0,0 +1,20 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:avaloniaApp="clr-namespace:AvaloniaApp"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="AvaloniaApp.Views.MainWindow"
+        x:DataType="avaloniaApp:Composition"
+        DataContext="{StaticResource Composition}"
+        Title="{Binding App.ClockViewModel.Time}"
+        Icon="/Assets/avalonia-logo.ico"
+        FontFamily="Consolas"
+        FontWeight="Bold">
+
+    <StackPanel HorizontalAlignment="Center" VerticalAlignment="Center" DataContext="{Binding App.ClockViewModel}">
+        <TextBlock Text="{Binding Date}" FontSize="64" HorizontalAlignment="Center" />
+        <TextBlock Text="{Binding Time}" FontSize="128" HorizontalAlignment="Center" />
+    </StackPanel>
+
+</Window>

samples/SingleRootAvaloniaApp/Views/MainWindow.axaml.cs

@@ -0,0 +1,9 @@
+using Avalonia.Controls;
+
+namespace AvaloniaApp.Views;
+
+// ReSharper disable once ClassNeverInstantiated.Global
+public partial class MainWindow : Window
+{
+    public MainWindow() => InitializeComponent();
+}

samples/SingleRootAvaloniaApp/app.manifest

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <!-- This manifest is used on Windows only.
+       Don't remove it as it might cause problems with window transparency and embeded controls.
+       For more details visit https://learn.microsoft.com/en-us/windows/win32/sbscs/application-manifests -->
+  <assemblyIdentity version="1.0.0.0" name="SingleRootAvaloniaApp.Desktop"/>
+
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- A list of the Windows versions that this application has been tested on
+           and is designed to work with. Uncomment the appropriate elements
+           and Windows will automatically select the most compatible environment. -->
+
+      <!-- Windows 10 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}" />
+    </application>
+  </compatibility>
+</assembly>