Merge branch 'master' into xy-focus

.gitignore

@@ -217,3 +217,4 @@ node_modules
 src/Browser/Avalonia.Browser.Blazor/webapp/package-lock.json
 src/Browser/Avalonia.Browser.Blazor/wwwroot
 src/Browser/Avalonia.Browser/wwwroot
+api/diff

.nuke/build.schema.json

@@ -83,6 +83,7 @@
               "CreateIntermediateNugetPackages",
               "CreateNugetPackages",
               "GenerateCppHeaders",
+              "OutputApiDiff",
               "Package",
               "RunCoreLibsTests",
               "RunHtmlPreviewerTests",
@@ -117,6 +118,7 @@
               "CreateIntermediateNugetPackages",
               "CreateNugetPackages",
               "GenerateCppHeaders",
+              "OutputApiDiff",
               "Package",
               "RunCoreLibsTests",
               "RunHtmlPreviewerTests",

Avalonia.sln

@@ -236,6 +236,19 @@ EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{176582E8-46AF-416A-85C1-13A5C6744497}"
 	ProjectSection(SolutionItems) = preProject
 		.editorconfig = .editorconfig
+		azure-pipelines.yml = azure-pipelines.yml
+		azure-pipelines-integrationtests.yml = azure-pipelines-integrationtests.yml
+		CODE_OF_CONDUCT.md = CODE_OF_CONDUCT.md
+		CONTRIBUTING.md = CONTRIBUTING.md
+		Directory.Build.props = Directory.Build.props
+		Directory.Build.targets = Directory.Build.targets
+		dirs.proj = dirs.proj
+		global.json = global.json
+		licence.md = licence.md
+		NOTICE.md = NOTICE.md
+		NuGet.Config = NuGet.Config
+		readme.md = readme.md
+		Settings.StyleCop = Settings.StyleCop
 	EndProjectSection
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Avalonia.Controls.ItemsRepeater", "src\Avalonia.Controls.ItemsRepeater\Avalonia.Controls.ItemsRepeater.csproj", "{EE0F0DD4-A70D-472B-BD5D-B7D32D0E9386}"

native/Avalonia.Native/src/OSX/app.mm

@@ -43,6 +43,22 @@ ComPtr<IAvnApplicationEvents> _events;
     [[NSRunningApplication currentApplication] activateWithOptions:NSApplicationActivateIgnoringOtherApps];
 }
 
+-(BOOL)applicationShouldHandleReopen:(NSApplication *)sender hasVisibleWindows:(BOOL)flag
+{
+    _events->OnReopen();
+    return YES;
+}
+
+- (void)applicationDidHide:(NSNotification *)notification
+{
+    _events->OnHide();
+}
+
+- (void)applicationDidUnhide:(NSNotification *)notification
+{
+    _events->OnUnhide();
+}
+
 - (void)application:(NSApplication *)sender openFiles:(NSArray<NSString *> *)filenames
 {
     auto array = CreateAvnStringArray(filenames);
@@ -123,6 +139,13 @@ extern void ReleaseAvnAppEvents()
     }
 }
 
+HRESULT AvnApplicationCommands::UnhideApp()
+{
+    START_COM_CALL;
+    [[NSApplication sharedApplication] unhide:[NSApp delegate]];
+    return S_OK;
+}
+
 HRESULT AvnApplicationCommands::HideApp()
 {
     START_COM_CALL;

native/Avalonia.Native/src/OSX/common.h

@@ -101,6 +101,7 @@ class AvnApplicationCommands : public ComSingleObject<IAvnApplicationCommands, &
 public:
     FORWARD_IUNKNOWN()
     
+    virtual HRESULT UnhideApp() override;
     virtual HRESULT HideApp() override;
     virtual HRESULT ShowAll() override;
     virtual HRESULT HideOthers() override;

nukebuild/ApiDiffValidation.cs → nukebuild/ApiDiffHelper.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
 using System.IO.Compression;
 using System.Linq;
@@ -10,9 +11,95 @@ using System.Threading.Tasks;
 using Nuke.Common.Tooling;
 using static Serilog.Log;
 
-public static class ApiDiffValidation
+public static class ApiDiffHelper
 {
-    private static readonly HttpClient s_httpClient = new();
+    static readonly HttpClient s_httpClient = new();
+
+    public static async Task GetDiff(
+        Tool apiDiffTool, string outputFolder,
+        string packagePath, string baselineVersion)
+    {
+        await using var baselineStream = await DownloadBaselinePackage(packagePath, baselineVersion);
+        if (baselineStream == null)
+            return;
+
+        if (!Directory.Exists(outputFolder))
+        {
+            Directory.CreateDirectory(outputFolder!);
+        }
+
+        using (var target = new ZipArchive(File.Open(packagePath, FileMode.Open, FileAccess.Read), ZipArchiveMode.Read))
+        using (var baseline = new ZipArchive(baselineStream, ZipArchiveMode.Read))
+        using (Helpers.UseTempDir(out var tempFolder))
+        {
+            var targetDlls = GetDlls(target);
+            var baselineDlls = GetDlls(baseline);
+
+            var pairs = new List<(string baseline, string target)>();
+
+            var packageId = GetPackageId(packagePath);
+
+            // Don't use Path.Combine with these left and right tool parameters.
+            // Microsoft.DotNet.ApiCompat.Tool is stupid and treats '/' and '\' as different assemblies in suppression files.
+            // So, always use Unix '/'
+            foreach (var baselineDll in baselineDlls)
+            {
+                var baselineDllPath = await ExtractDll("baseline", baselineDll, tempFolder);
+
+                var targetTfm = baselineDll.target;
+                if (s_tfmRedirects.FirstOrDefault(t => baselineDll.target.StartsWith(t.oldTfm)).newTfm is {} newTfm)
+                {
+                    targetTfm = newTfm;
+                }
+
+                var targetDll = targetDlls.FirstOrDefault(e =>
+                    e.target.StartsWith(targetTfm) && e.entry.Name == baselineDll.entry.Name);
+                if (targetDll?.entry is null)
+                {
+                    throw new InvalidOperationException($"Some assemblies are missing in the new package {packageId}: {baselineDll.entry.Name} for {baselineDll.target}");
+                }
+
+                var targetDllPath = await ExtractDll("target", targetDll, tempFolder);
+
+                pairs.Add((baselineDllPath, targetDllPath));
+            }
+
+            await Task.WhenAll(pairs.Select(p => Task.Run(() =>
+            {
+                var baselineApi = p.baseline + ".api.cs";
+                var targetApi = p.target + ".api.cs";
+                var resultDiff = p.target + ".api.diff.cs";
+                
+                GenerateApiListing(apiDiffTool, p.baseline, baselineApi, tempFolder);
+                GenerateApiListing(apiDiffTool, p.target, targetApi, tempFolder);
+
+                var args = $"""-c core.autocrlf=false diff --no-index --minimal """;
+                args += """--ignore-matching-lines="^\[assembly: System.Reflection.AssemblyVersionAttribute" """;
+                args += $""" --output {resultDiff} {baselineApi} {targetApi}""";
+
+                using (var gitProcess = new Process())
+                {
+                    gitProcess.StartInfo = new ProcessStartInfo
+                    {
+                        CreateNoWindow = true,
+                        RedirectStandardError = false,
+                        RedirectStandardOutput = false,
+                        FileName = "git",
+                        Arguments = args,
+                        WorkingDirectory = tempFolder
+                    };
+                    gitProcess.Start();
+                    gitProcess.WaitForExit();
+                }
+
+                var resultFile = new FileInfo(Path.Combine(tempFolder, resultDiff));
+                if (resultFile.Length > 0)
+                {
+                    resultFile.CopyTo(Path.Combine(outputFolder, Path.GetFileName(resultDiff)), true);
+                }
+            })));
+        }
+    }
 
     private static readonly (string oldTfm, string newTfm)[] s_tfmRedirects = new[]
     {
@@ -25,12 +112,6 @@ public static class ApiDiffValidation
         Tool apiCompatTool, string packagePath, string baselineVersion,
         string suppressionFilesFolder, bool updateSuppressionFile)
     {
-        if (baselineVersion is null)
-        {
-            throw new InvalidOperationException(
-                "Build \"api-baseline\" parameter must be set when running Nuke CreatePackages");
-        }
-
         if (!Directory.Exists(suppressionFilesFolder))
         {
             Directory.CreateDirectory(suppressionFilesFolder!);
@@ -58,13 +139,7 @@ public static class ApiDiffValidation
             // So, always use Unix '/'
             foreach (var baselineDll in baselineDlls)
             {
-                var baselineDllPath = $"baseline/{baselineDll.target}/{baselineDll.entry.Name}";
+                var baselineDllPath = await ExtractDll("baseline", baselineDll, tempFolder);
-                var baselineDllRealPath = Path.Combine(tempFolder, baselineDllPath);
-                Directory.CreateDirectory(Path.GetDirectoryName(baselineDllRealPath)!);
-                await using (var baselineDllFile = File.Create(baselineDllRealPath))
-                {
-                    await baselineDll.entry.Open().CopyToAsync(baselineDllFile);
-                }
 
                 var targetTfm = baselineDll.target;
                 if (s_tfmRedirects.FirstOrDefault(t => baselineDll.target.StartsWith(t.oldTfm)).newTfm is {} newTfm)
@@ -79,13 +154,7 @@ public static class ApiDiffValidation
                     throw new InvalidOperationException($"Some assemblies are missing in the new package {packageId}: {baselineDll.entry.Name} for {baselineDll.target}");
                 }
 
-                var targetDllPath = $"target/{targetDll.target}/{targetDll.entry.Name}";
+                var targetDllPath = await ExtractDll("target", targetDll, tempFolder);
-                var targetDllRealPath = Path.Combine(tempFolder, targetDllPath);
-                Directory.CreateDirectory(Path.GetDirectoryName(targetDllRealPath)!);
-                await using (var targetDllFile = File.Create(targetDllRealPath))
-                {
-                    await targetDll.entry.Open().CopyToAsync(targetDllFile);
-                }
 
                 left.Add(baselineDllPath);
                 right.Add(targetDllPath);
@@ -116,7 +185,9 @@ public static class ApiDiffValidation
         }
     }
 
-    private static IReadOnlyCollection<(string target, ZipArchiveEntry entry)> GetDlls(ZipArchive archive)
+    record DllEntry(string target, ZipArchiveEntry entry);
+    
+    static IReadOnlyCollection<DllEntry> GetDlls(ZipArchive archive)
     {
         return archive.Entries
             .Where(e => Path.GetExtension(e.FullName) == ".dll"
@@ -130,12 +201,18 @@ public static class ApiDiffValidation
             )
             .GroupBy(e => (e.target, e.entry.Name))
             .Select(g => g.MaxBy(e => e.isRef))
-            .Select(e => (e.target, e.entry))
+            .Select(e => new DllEntry(e.target, e.entry))
             .ToArray();
     }
 
     static async Task<Stream> DownloadBaselinePackage(string packagePath, string baselineVersion)
     {
+        if (baselineVersion is null)
+        {
+            throw new InvalidOperationException(
+                "Build \"api-baseline\" parameter must be set when running Nuke CreatePackages");
+        }
+
         /*
          Gets package name from versions like:
          Avalonia.0.10.0-preview1
@@ -167,6 +244,31 @@ public static class ApiDiffValidation
         }
     }
 
+    static async Task<string> ExtractDll(string basePath, DllEntry dllEntry, string targetFolder)
+    {
+        var dllPath = $"{basePath}/{dllEntry.target}/{dllEntry.entry.Name}";
+        var dllRealPath = Path.Combine(targetFolder, dllPath);
+        Directory.CreateDirectory(Path.GetDirectoryName(dllRealPath)!);
+        await using (var dllFile = File.Create(dllRealPath))
+        {
+            await dllEntry.entry.Open().CopyToAsync(dllFile);
+        }
+
+        return dllPath;
+    }
+
+    static void GenerateApiListing(Tool apiDiffTool, string inputFile, string outputFile, string workingDif)
+    {
+        var args = $""" --assembly={inputFile}  --output-path={outputFile}  --include-assembly-attributes=true""";
+        var result = apiDiffTool(args, workingDif)
+            .Where(t => t.Type == OutputType.Err).ToArray();
+        if (result.Any())
+        {
+            throw new AggregateException($"GetApi tool failed task has failed",
+                result.Select(r => new Exception(r.Text)));
+        }
+    }
+
     static string GetPackageId(string packagePath)
     {
         return Regex.Replace(

nukebuild/Build.cs

@@ -18,6 +18,7 @@ using static Nuke.Common.Tools.Xunit.XunitTasks;
 using static Nuke.Common.Tools.VSWhere.VSWhereTasks;
 using static Serilog.Log;
 using MicroCom.CodeGenerator;
+using Nuke.Common.IO;
 
 /*
  Before editing this file, install support plugin for your IDE,
@@ -33,6 +34,9 @@ partial class Build : NukeBuild
 
     [PackageExecutable("Microsoft.DotNet.ApiCompat.Tool", "Microsoft.DotNet.ApiCompat.Tool.dll", Framework = "net6.0")]
     Tool ApiCompatTool;
+    
+    [PackageExecutable("Microsoft.DotNet.GenAPI.Tool", "Microsoft.DotNet.GenAPI.Tool.dll", Framework = "net8.0")]
+    Tool ApiGenTool;
 
     protected override void OnBuildInitialized()
     {
@@ -283,11 +287,21 @@ partial class Build : NukeBuild
         .Executes(async () =>
         {
             await Task.WhenAll(
-                Directory.GetFiles(Parameters.NugetRoot, "*.nupkg").Select(nugetPackage => ApiDiffValidation.ValidatePackage(
+                Directory.GetFiles(Parameters.NugetRoot, "*.nupkg").Select(nugetPackage => ApiDiffHelper.ValidatePackage(
                     ApiCompatTool, nugetPackage, Parameters.ApiValidationBaseline,
                     Parameters.ApiValidationSuppressionFiles, Parameters.UpdateApiValidationSuppression)));
         });
     
+    Target OutputApiDiff => _ => _
+        .DependsOn(CreateNugetPackages)
+        .Executes(async () =>
+        {
+            await Task.WhenAll(
+                Directory.GetFiles(Parameters.NugetRoot, "*.nupkg").Select(nugetPackage => ApiDiffHelper.GetDiff(
+                    ApiGenTool, RootDirectory / "api" / "diff",
+                    nugetPackage, Parameters.ApiValidationBaseline)));
+        });
+    
     Target RunTests => _ => _
         .DependsOn(RunCoreLibsTests)
         .DependsOn(RunRenderTests)

nukebuild/_build.csproj

@@ -7,6 +7,8 @@
     <NoWarn>$(NoWarn);CS0649;CS0169;SYSLIB0011</NoWarn>
     <NukeTelemetryVersion>1</NukeTelemetryVersion>
     <TargetFramework>net7.0</TargetFramework>
+    <!-- Necessary for Microsoft.DotNet.GenAPI.Tool -->
+    <RestoreAdditionalProjectSources>https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet8-transport/nuget/v3/index.json</RestoreAdditionalProjectSources>
   </PropertyGroup>
 
   <Import Project="..\build\JetBrains.dotMemoryUnit.props" />
@@ -24,6 +26,7 @@
     </PackageReference>
 
     <PackageDownload Include="Microsoft.DotNet.ApiCompat.Tool" Version="[7.0.305]" />
+    <PackageDownload Include="Microsoft.DotNet.GenAPI.Tool" Version="[8.0.101-servicing.23580.12]" />
   </ItemGroup>
 
   <ItemGroup>

packages/Avalonia/AvaloniaBuildTasks.targets

@@ -131,6 +131,7 @@
       <AvaloniaXamlIlVerifyIl Condition="'$(AvaloniaXamlIlVerifyIl)' == ''">false</AvaloniaXamlIlVerifyIl>
       <AvaloniaXamlIlDebuggerLaunch Condition="'$(AvaloniaXamlIlDebuggerLaunch)' == ''">false</AvaloniaXamlIlDebuggerLaunch>
       <AvaloniaXamlVerboseExceptions Condition="'$(AvaloniaXamlVerboseExceptions)' == ''">false</AvaloniaXamlVerboseExceptions>
+      <_AvaloniaHasCompiledXaml>true</_AvaloniaHasCompiledXaml>
     </PropertyGroup>
     <WriteLinesToFile
       Condition="'$(_AvaloniaForceInternalMSBuild)' != 'true'"
@@ -195,4 +196,25 @@
     <Exec Command="dotnet exec --runtimeconfig &quot;$(APreviewerRuntimeConfigPath)&quot; --depsfile &quot;$(APreviewerDepsJsonPath)&quot; &quot;$(AvaloniaPreviewerNetCoreToolPath)&quot; --method html --html-url $(APreviewerUrl) --transport $(APreviewTransportUrl)  &quot;$(APreviewExecutable)&quot;"/>
      
   </Target>
+
+  <!--
+    Deletes the target ref assembly before the CopyRefAssembly task (in target CopyFilesToOutputDirectory) tries to access it.
+
+    CopyRefAssembly reads the ref assembly's MVID from the .mvid PE section to avoid copying if necessary.
+    However, Cecil doesn't preserve that PE section: this results in a warning.
+    By deleting the file beforehand, we're preventing the warning.
+    There are no changes in behavior since CopyRefAssembly always copy the file if it couldn't read the MVID.
+  -->
+  <Target
+    Name="AvaloniaDeleteRefAssemblyBeforeOutputCopy"
+    BeforeTargets="CopyFilesToOutputDirectory"
+    Condition="
+      '$(_AvaloniaHasCompiledXaml)' == 'true' and
+      '$(TargetRefPath)' != '' and
+      '$(ProduceReferenceAssembly)' == 'true' and
+      ('$(CopyBuildOutputToOutputDirectory)' == '' or '$(CopyBuildOutputToOutputDirectory)' == 'true') and
+      '$(SkipCopyBuildProduct)' != 'true'">
+    <Delete Files="$(TargetRefPath)" Condition="Exists('$(TargetRefPath)')" />
+  </Target>
+
 </Project>

readme.md

@@ -8,7 +8,7 @@
 
 ## 📖 About 
 
-[Avalonia](https://avaloniaui.net) is a cross-platform UI framework for dotnet, providing a flexible styling system and supporting a wide range of platforms such as Windows, macOS, Linux, iOS, Android and WebAssembly. Avalonia is mature and production ready and is used by companies, including [Schneider Electric](https://avaloniaui.net/showcase#se), [Unity](https://avaloniaui.net/showcase#unity), [JetBrains](https://avaloniaui.net/showcase#rider) and [Github](https://avaloniaui.net/showcase#github).
+[Avalonia](https://avaloniaui.net) is a cross-platform UI framework for dotnet, providing a flexible styling system and supporting a wide range of platforms such as Windows, macOS, Linux, iOS, Android and WebAssembly. Avalonia is mature and production ready and is used by companies, including [Schneider Electric](https://avaloniaui.net/showcase#se), [Unity](https://avaloniaui.net/showcase#unity), [JetBrains](https://avaloniaui.net/showcase#rider) and [GitHub](https://avaloniaui.net/showcase#github).
 
 Considered by many to be the spiritual successor to WPF, Avalonia UI provides a familiar, modern development experience for XAML developers creating cross-platform applications. While Avalonia UI is [similar to WPF](https://docs.avaloniaui.net/docs/next/get-started/wpf/), it isn't a 1:1 copy, and you'll find plenty of improvements. 
 
@@ -106,18 +106,6 @@ Thank you to all our backers! 🙏 [[Become a backer](https://opencollective.com
 
 Support this project by becoming a sponsor. Your logo will show up here with a link to your website. [[Become a sponsor](https://opencollective.com/Avalonia#sponsor)]
 
-<a href="https://opencollective.com/Avalonia/sponsor/0/website" target="_blank"><img src="https://opencollective.com/Avalonia/sponsor/0/avatar.svg"></a>
-<a href="https://opencollective.com/Avalonia/sponsor/1/website" target="_blank"><img src="https://opencollective.com/Avalonia/sponsor/1/avatar.svg"></a>
-<a href="https://opencollective.com/Avalonia/sponsor/2/website" target="_blank"><img src="https://opencollective.com/Avalonia/sponsor/2/avatar.svg"></a>
-<a href="https://opencollective.com/Avalonia/sponsor/3/website" target="_blank"><img src="https://opencollective.com/Avalonia/sponsor/3/avatar.svg"></a>
-<a href="https://opencollective.com/Avalonia/sponsor/4/website" target="_blank"><img src="https://opencollective.com/Avalonia/sponsor/4/avatar.svg"></a>
-<a href="https://opencollective.com/Avalonia/sponsor/5/website" target="_blank"><img src="https://opencollective.com/Avalonia/sponsor/5/avatar.svg"></a>
-<a href="https://opencollective.com/Avalonia/sponsor/6/website" target="_blank"><img src="https://opencollective.com/Avalonia/sponsor/6/avatar.svg"></a>
-<a href="https://opencollective.com/Avalonia/sponsor/7/website" target="_blank"><img src="https://opencollective.com/Avalonia/sponsor/7/avatar.svg"></a>
-<a href="https://opencollective.com/Avalonia/sponsor/8/website" target="_blank"><img src="https://opencollective.com/Avalonia/sponsor/8/avatar.svg"></a>
-<a href="https://opencollective.com/Avalonia/sponsor/9/website" target="_blank"><img src="https://opencollective.com/Avalonia/sponsor/9/avatar.svg"></a>
-<a href="https://baseheadinc.com/" target="_blank"><img height="50" src="https://baseheadinc.com/wp-content/uploads/2020/09/BH-Logo-for-Site-Header-New.png"></a>
-
 <a href="https://aws.amazon.com/developer/language/net/" target="_blank"><img src="https://github.com/AvaloniaUI/Avalonia/assets/552074/7771d8b9-ef84-4503-9889-033a87d2c852"></a>
 
 ## Commercial Support 

samples/ControlCatalog.Android/MainActivity.cs

@@ -2,13 +2,16 @@
 using Android.Content.PM;
 using Avalonia;
 using Avalonia.Android;
+using static Android.Content.Intent;
 
 namespace ControlCatalog.Android
 {
-    [Activity(Label = "ControlCatalog.Android", Theme = "@style/MyTheme.NoActionBar", Icon = "@drawable/icon", MainLauncher = true, ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.ScreenSize | ConfigChanges.UiMode)]
+    [Activity(Label = "ControlCatalog.Android", Theme = "@style/MyTheme.NoActionBar", Icon = "@drawable/icon", MainLauncher = true, Exported = true, ConfigurationChanges = ConfigChanges.Orientation | ConfigChanges.ScreenSize | ConfigChanges.UiMode)]
+    // IntentFilter are here to test IActivatableApplicationLifetime 
+    [IntentFilter(new [] { ActionView }, Categories = new [] { CategoryDefault, CategoryBrowsable }, DataScheme = "avln" )]
     public class MainActivity : AvaloniaMainActivity<App>
     {
-        protected override Avalonia.AppBuilder CustomizeAppBuilder(Avalonia.AppBuilder builder)
+        protected override AppBuilder CustomizeAppBuilder(AppBuilder builder)
         {
             return base.CustomizeAppBuilder(builder)
                  .AfterSetup(_ =>

samples/ControlCatalog/App.xaml.cs

@@ -51,6 +51,14 @@ namespace ControlCatalog
                 singleViewLifetime.MainView = new MainView { DataContext = new MainWindowViewModel() };
             }
 
+            if (ApplicationLifetime is IActivatableApplicationLifetime activatableApplicationLifetime)
+            {
+                activatableApplicationLifetime.Activated += (sender, args) =>
+                    Console.WriteLine($"App activated: {args.Kind}");
+                activatableApplicationLifetime.Deactivated += (sender, args) =>
+                    Console.WriteLine($"App deactivated: {args.Kind}");
+            }
+
             base.OnFrameworkInitializationCompleted();
         }
 

src/Android/Avalonia.Android/AvaloniaMainActivity.App.cs

@@ -36,7 +36,7 @@ namespace Avalonia.Android
             {
                 var builder = CreateAppBuilder();
 
-                builder.SetupWithLifetime(new SingleViewLifetime());
+                builder.SetupWithLifetime(new SingleViewLifetime(this));
 
                 s_appBuilder = builder;
             }

src/Android/Avalonia.Android/AvaloniaMainActivity.cs

@@ -7,15 +7,29 @@ using Android.OS;
 using Android.Runtime;
 using Android.Views;
 using AndroidX.AppCompat.App;
+using Avalonia.Controls.ApplicationLifetimes;
 
 namespace Avalonia.Android
 {
-    public class AvaloniaMainActivity : AppCompatActivity, IActivityResultHandler, IActivityNavigationService
+    public class AvaloniaMainActivity : AppCompatActivity, IAvaloniaActivity
     {
+        private EventHandler<ActivatedEventArgs> _onActivated, _onDeactivated;
+        
         public Action<int, Result, Intent> ActivityResult { get; set; }
         public Action<int, string[], Permission[]> RequestPermissionsResult { get; set; }
 
         public event EventHandler<AndroidBackRequestedEventArgs> BackRequested;
+        event EventHandler<ActivatedEventArgs> IAvaloniaActivity.Activated
+        {
+            add { _onActivated += value; }
+            remove { _onActivated -= value; }
+        }
+
+        event EventHandler<ActivatedEventArgs> IAvaloniaActivity.Deactivated
+        {
+            add { _onDeactivated += value; }
+            remove { _onDeactivated -= value; }
+        }
 
         public override void OnBackPressed()
         {
@@ -29,6 +43,30 @@ namespace Avalonia.Android
             }
         }
 
+        protected override void OnCreate(Bundle savedInstanceState)
+        {
+            base.OnCreate(savedInstanceState);
+            
+            if (Intent?.Data is {} androidUri
+                && androidUri.IsAbsolute
+                && Uri.TryCreate(androidUri.ToString(), UriKind.Absolute, out var protocolUri))
+            {
+                _onActivated?.Invoke(this, new ProtocolActivatedEventArgs(ActivationKind.OpenUri, protocolUri));
+            }
+        }
+
+        protected override void OnStop()
+        {
+            _onDeactivated?.Invoke(this, new ActivatedEventArgs(ActivationKind.Background));
+            base.OnStop();
+        }
+
+        protected override void OnStart()
+        {
+            _onActivated?.Invoke(this, new ActivatedEventArgs(ActivationKind.Background));
+            base.OnStart();
+        }
+
         protected override void OnActivityResult(int requestCode, [GeneratedEnum] Result resultCode, Intent data)
         {
             base.OnActivityResult(requestCode, resultCode, data);

src/Android/Avalonia.Android/IAndroidNavigationService.cs

@@ -1,4 +1,5 @@
 using System;
+using Avalonia.Controls.ApplicationLifetimes;
 
 namespace Avalonia.Android
 {

src/Android/Avalonia.Android/IAvaloniaActivity.cs

@@ -0,0 +1,10 @@
+using System;
+using Avalonia.Controls.ApplicationLifetimes;
+
+namespace Avalonia.Android;
+
+public interface IAvaloniaActivity : IActivityResultHandler, IActivityNavigationService
+{
+    event EventHandler<ActivatedEventArgs> Activated;
+    event EventHandler<ActivatedEventArgs> Deactivated;
+}

src/Android/Avalonia.Android/Platform/SkiaPlatform/TopLevelImpl.cs

@@ -1,12 +1,10 @@
 using System;
 using System.Collections.Generic;
-using System.Runtime.Versioning;
 using System.Threading;
 using Android.App;
 using Android.Content;
 using Android.Graphics;
 using Android.Graphics.Drawables;
-using Android.OS;
 using Android.Runtime;
 using Android.Text;
 using Android.Views;
@@ -27,10 +25,8 @@ using Avalonia.OpenGL.Egl;
 using Avalonia.OpenGL.Surfaces;
 using Avalonia.Platform;
 using Avalonia.Platform.Storage;
-using Avalonia.Rendering;
 using Avalonia.Rendering.Composition;
 using Java.Lang;
-using static System.Net.Mime.MediaTypeNames;
 using ClipboardManager = Android.Content.ClipboardManager;
 
 namespace Avalonia.Android.Platform.SkiaPlatform
@@ -76,6 +72,8 @@ namespace Avalonia.Android.Platform.SkiaPlatform
             _transparencyLevel = WindowTransparencyLevel.None;
 
             _systemNavigationManager = new AndroidSystemNavigationManagerImpl(avaloniaView.Context as IActivityNavigationService);
+
+            Surfaces = new object[] { _gl, _framebuffer, Handle };
         }
 
         public virtual Point GetAvaloniaPointFromEvent(MotionEvent e, int pointerIndex) =>
@@ -107,7 +105,7 @@ namespace Avalonia.Android.Platform.SkiaPlatform
 
         public IPlatformHandle Handle => _view;
 
-        public IEnumerable<object> Surfaces => new object[] { _gl, _framebuffer, Handle };
+        public IEnumerable<object> Surfaces { get; }
 
         public Compositor Compositor => AndroidPlatform.Compositor;
         

src/Android/Avalonia.Android/Platform/Specific/Helpers/AndroidKeyboardEventsHelper.cs

@@ -53,6 +53,7 @@ namespace Avalonia.Android.Platform.Specific.Helpers
 
             var physicalKey = AndroidKeyInterop.PhysicalKeyFromScanCode(e.ScanCode);
             var keySymbol = GetKeySymbol(e.UnicodeChar, physicalKey);
+            var keyDeviceType = GetKeyDeviceType(e);
 
             var rawKeyEvent = new RawKeyEventArgs(
                           AndroidKeyboardDevice.Instance!,
@@ -62,6 +63,7 @@ namespace Avalonia.Android.Platform.Specific.Helpers
                           AndroidKeyboardDevice.ConvertKey(e.KeyCode),
                           GetModifierKeys(e),
                           physicalKey,
+                          keyDeviceType,
                           keySymbol);
 
             _view.Input?.Invoke(rawKeyEvent);
@@ -124,6 +126,20 @@ namespace Avalonia.Android.Platform.Specific.Helpers
             }
         }
 
+        private KeyDeviceType GetKeyDeviceType(KeyEvent e)
+        {
+            var source = e.Device?.Sources ?? InputSourceType.Unknown;
+            if (source is InputSourceType.Joystick or
+                InputSourceType.ClassJoystick or
+                InputSourceType.Gamepad)
+                return KeyDeviceType.Gamepad;
+
+            if (source == InputSourceType.Dpad && e.Device?.KeyboardType == InputKeyboardType.NonAlphabetic)
+                return KeyDeviceType.Remote;
+
+            return KeyDeviceType.Keyboard;
+        }
+
         public void Dispose()
         {
             HandleEvents = false;

src/Android/Avalonia.Android/SingleViewLifetime.cs

@@ -1,12 +1,26 @@
-using Avalonia.Controls;
+using System;
+using Android.App;
+using Avalonia.Controls;
 using Avalonia.Controls.ApplicationLifetimes;
 
 namespace Avalonia.Android
 {
-    internal class SingleViewLifetime : ISingleViewApplicationLifetime
+    internal class SingleViewLifetime : ISingleViewApplicationLifetime, IActivatableApplicationLifetime
     {
+        private readonly Activity _activity;
         private AvaloniaView _view;
 
+        public SingleViewLifetime(Activity activity)
+        {
+            _activity = activity;
+
+            if (activity is IAvaloniaActivity activableActivity)
+            {
+                activableActivity.Activated += (_, args) => Activated?.Invoke(this, args);
+                activableActivity.Deactivated += (_, args) => Deactivated?.Invoke(this, args);
+            }
+        }
+        
         public AvaloniaView View
         {
             get => _view; internal set
@@ -22,5 +36,10 @@ namespace Avalonia.Android
         }
 
         public Control MainView { get; set; }
+        public event EventHandler<ActivatedEventArgs> Activated;
+        public event EventHandler<ActivatedEventArgs> Deactivated;
+
+        public bool TryLeaveBackground() => _activity.MoveTaskToBack(true);
+        public bool TryEnterBackground() => false;
     }
 }

src/Avalonia.Base/Animation/Animators/BoolAnimator.cs

@@ -5,7 +5,7 @@
     /// </summary>
     internal class BoolAnimator : Animator<bool>
     {
-        /// <inheritdocs/>
+        /// <inheritdoc/>
         public override bool Interpolate(double progress, bool oldValue, bool newValue)
         {
             if(progress >= 1d)

src/Avalonia.Base/Animation/Animators/ByteAnimator.cs

@@ -9,7 +9,7 @@ namespace Avalonia.Animation.Animators
     {
         const double maxVal = (double)byte.MaxValue;
 
-        /// <inheritdocs/>
+        /// <inheritdoc/>
         public override byte Interpolate(double progress, byte oldValue, byte newValue)
         {
             var normOV = oldValue / maxVal;

src/Avalonia.Base/Animation/Animators/DecimalAnimator.cs

@@ -5,7 +5,7 @@
     /// </summary>
     internal class DecimalAnimator : Animator<decimal>
     {
-        /// <inheritdocs/>
+        /// <inheritdoc/>
         public override decimal Interpolate(double progress, decimal oldValue, decimal newValue)
         {
             return ((newValue - oldValue) * (decimal)progress) + oldValue;

src/Avalonia.Base/Animation/Animators/DoubleAnimator.cs

@@ -5,7 +5,7 @@
     /// </summary>
     internal class DoubleAnimator : Animator<double>
     {
-        /// <inheritdocs/>
+        /// <inheritdoc/>
         public override double Interpolate(double progress, double oldValue, double newValue)
         {
             return ((newValue - oldValue) * progress) + oldValue;

src/Avalonia.Base/Animation/Animators/FloatAnimator.cs

@@ -5,7 +5,7 @@
     /// </summary>
     internal class FloatAnimator : Animator<float>
     {
-        /// <inheritdocs/>
+        /// <inheritdoc/>
         public override float Interpolate(double progress, float oldValue, float newValue)
         {
             return (float)(((newValue - oldValue) * progress) + oldValue);

src/Avalonia.Base/Animation/Animators/Int16Animator.cs

@@ -9,7 +9,7 @@ namespace Avalonia.Animation.Animators
     {
         const double maxVal = (double)Int16.MaxValue;
 
-        /// <inheritdocs/>
+        /// <inheritdoc/>
         public override Int16 Interpolate(double progress, Int16 oldValue, Int16 newValue)
         {
             var normOV = oldValue / maxVal;

src/Avalonia.Base/Animation/Animators/Int32Animator.cs

@@ -9,7 +9,7 @@ namespace Avalonia.Animation.Animators
     {
         const double maxVal = (double)Int32.MaxValue;
 
-        /// <inheritdocs/>
+        /// <inheritdoc/>
         public override Int32 Interpolate(double progress, Int32 oldValue, Int32 newValue)
         {
             var normOV = oldValue / maxVal;

src/Avalonia.Base/Animation/Animators/Int64Animator.cs

@@ -9,7 +9,7 @@ namespace Avalonia.Animation.Animators
     {
         const double maxVal = (double)Int64.MaxValue;
 
-        /// <inheritdocs/>
+        /// <inheritdoc/>
         public override Int64 Interpolate(double progress, Int64 oldValue, Int64 newValue)
         {
             var normOV = oldValue / maxVal;

src/Avalonia.Base/Animation/Animators/TransformAnimator.cs

@@ -92,7 +92,7 @@ namespace Avalonia.Animation.Animators
             return null;
         }
 
-        /// <inheritdocs/> 
+        /// <inheritdoc/> 
         public override double Interpolate(double p, double o, double n) => 0;
     }
 }

src/Avalonia.Base/Animation/Animators/UInt16Animator.cs

@@ -9,7 +9,7 @@ namespace Avalonia.Animation.Animators
     {
         const double maxVal = (double)UInt16.MaxValue;
 
-        /// <inheritdocs/>
+        /// <inheritdoc/>
         public override UInt16 Interpolate(double progress, UInt16 oldValue, UInt16 newValue)
         {
             var normOV = oldValue / maxVal;

src/Avalonia.Base/Animation/Animators/UInt32Animator.cs

@@ -9,7 +9,7 @@ namespace Avalonia.Animation.Animators
     {
         const double maxVal = (double)UInt32.MaxValue;
 
-        /// <inheritdocs/>
+        /// <inheritdoc/>
         public override UInt32 Interpolate(double progress, UInt32 oldValue, UInt32 newValue)
         {
             var normOV = oldValue / maxVal;

src/Avalonia.Base/Animation/Animators/UInt64Animator.cs

@@ -9,7 +9,7 @@ namespace Avalonia.Animation.Animators
     {
         const double maxVal = (double)UInt64.MaxValue;
 
-        /// <inheritdocs/>
+        /// <inheritdoc/>
         public override UInt64 Interpolate(double progress, UInt64 oldValue, UInt64 newValue)
         {
             var normOV = oldValue / maxVal;

src/Avalonia.Base/Animation/TransitionBase.cs

@@ -77,7 +77,7 @@ namespace Avalonia.Animation
             set { SetAndRaise(EasingProperty, ref _easing, value); }
         }
 
-        /// <inheritdocs/>
+        /// <inheritdoc/>
         [DisallowNull]
         public AvaloniaProperty? Property
         {
@@ -91,7 +91,7 @@ namespace Avalonia.Animation
             set => Property = value;
         }
 
-        /// <inheritdocs/>
+        /// <inheritdoc/>
         IDisposable ITransition.Apply(Animatable control, IClock clock, object? oldValue, object? newValue)
             => Apply(control, clock, oldValue, newValue);
         

src/Avalonia.Base/Input/Gestures.cs

@@ -67,7 +67,7 @@ namespace Avalonia.Input
 
         private static readonly WeakReference<object?> s_lastPress = new WeakReference<object?>(null);
         private static Point s_lastPressPoint;
-        private static IPointer? s_lastPointer;
+        private static IPointer? s_lastHeldPointer;
 
         public static readonly RoutedEvent<PinchEventArgs> PinchEvent =
             RoutedEvent.Register<PinchEventArgs>(
@@ -225,17 +225,17 @@ namespace Avalonia.Input
                 var e = (PointerPressedEventArgs)ev;
                 var visual = (Visual)ev.Source;
 
-                if(s_lastPointer != null)
+                if(s_lastHeldPointer != null)
                 {
                     if(s_isHolding && ev.Source is Interactive i)
                     {
-                        i.RaiseEvent(new HoldingRoutedEventArgs(HoldingState.Cancelled, s_lastPressPoint, s_lastPointer.Type, e));
+                        i.RaiseEvent(new HoldingRoutedEventArgs(HoldingState.Cancelled, s_lastPressPoint, s_lastHeldPointer.Type, e));
                     }
                     s_holdCancellationToken?.Cancel();
                     s_holdCancellationToken?.Dispose();
                     s_holdCancellationToken = null;
 
-                    s_lastPointer = null;
+                    s_lastHeldPointer = null;
                 }
 
                 s_isHolding = false;
@@ -244,7 +244,7 @@ namespace Avalonia.Input
                 {
                     s_isDoubleTapped = false;
                     s_lastPress.SetTarget(ev.Source);
-                    s_lastPointer = e.Pointer;
+                    s_lastHeldPointer = e.Pointer;
                     s_lastPressPoint = e.GetPosition((Visual)ev.Source);
                     s_holdCancellationToken = new CancellationTokenSource();
                     var token = s_holdCancellationToken.Token;
@@ -257,7 +257,7 @@ namespace Avalonia.Input
                             if (!token.IsCancellationRequested && e.Source is InputElement i && GetIsHoldingEnabled(i) && (e.Pointer.Type != PointerType.Mouse || GetIsHoldWithMouseEnabled(i)))
                             {
                                 s_isHolding = true;
-                                i.RaiseEvent(new HoldingRoutedEventArgs(HoldingState.Started, s_lastPressPoint, s_lastPointer.Type, e));
+                                i.RaiseEvent(new HoldingRoutedEventArgs(HoldingState.Started, s_lastPressPoint, s_lastHeldPointer.Type, e));
                             }
                         }, settings.HoldWaitDuration);
                     }
@@ -281,7 +281,7 @@ namespace Avalonia.Input
             {
                 var e = (PointerReleasedEventArgs)ev;
 
-                if (s_lastPress.TryGetTarget(out var target) && 
+                if (s_lastPress.TryGetTarget(out var target) &&
                     target == e.Source &&
                     e.InitialPressMouseButton is MouseButton.Left or MouseButton.Right &&
                     e.Source is Interactive i)
@@ -294,10 +294,10 @@ namespace Avalonia.Input
 
                     if (tapRect.ContainsExclusive(point.Position))
                     {
-                        if(s_isHolding)
+                        if (s_isHolding)
                         {
                             s_isHolding = false;
-                            i.RaiseEvent(new HoldingRoutedEventArgs(HoldingState.Completed, s_lastPressPoint, s_lastPointer!.Type, e));
+                            i.RaiseEvent(new HoldingRoutedEventArgs(HoldingState.Completed, s_lastPressPoint, s_lastHeldPointer!.Type, e));
                         }
                         else if (e.InitialPressMouseButton == MouseButton.Right)
                         {
@@ -310,12 +310,12 @@ namespace Avalonia.Input
                             i.RaiseEvent(new TappedEventArgs(TappedEvent, e));
                         }
                     }
+                    s_lastHeldPointer = null;
                 }
 
                 s_holdCancellationToken?.Cancel();
                 s_holdCancellationToken?.Dispose();
                 s_holdCancellationToken = null;
-                s_lastPointer = null;
             }
         }
 
@@ -326,7 +326,7 @@ namespace Avalonia.Input
                 var e = (PointerEventArgs)ev;
                 if (s_lastPress.TryGetTarget(out var target))
                 {
-                    if (e.Pointer == s_lastPointer && ev.Source is Interactive i)
+                    if (e.Pointer == s_lastHeldPointer && ev.Source is Interactive i)
                     {
                         var point = e.GetCurrentPoint((Visual)target);
                         var settings = ((IInputRoot?)i.GetVisualRoot())?.PlatformSettings;
@@ -341,7 +341,8 @@ namespace Avalonia.Input
 
                         if (s_isHolding)
                         {
-                            i.RaiseEvent(new HoldingRoutedEventArgs(HoldingState.Cancelled, s_lastPressPoint, s_lastPointer!.Type, e));
+                            i.RaiseEvent(new HoldingRoutedEventArgs(HoldingState.Cancelled, s_lastPressPoint, s_lastHeldPointer!.Type, e));
+                            s_lastHeldPointer = null;
                         }
                     }
                 }

src/Avalonia.Base/Input/Key.cs

@@ -1036,5 +1036,74 @@ namespace Avalonia.Input
         /// OSX Platform-specific Fn+Down key
         /// </summary>
         FnDownArrow = 10004,
+
+        /// <summary>
+        /// Remove control home button
+        /// </summary>
+        MediaHome = 100000,
+        /// <summary>
+        /// TV Channel up
+        /// </summary>
+        MediaChannelList = 100001,
+        /// <summary>
+        /// TV Channel up
+        /// </summary>
+        MediaChannelRaise = 100002,
+        /// <summary>
+        /// TV Channel down
+        /// </summary>
+        MediaChannelLower = 100003,
+        /// <summary>
+        /// TV Channel down
+        /// </summary>
+        MediaRecord = 100005,
+        /// <summary>
+        /// Remote control Red button
+        /// </summary>
+        MediaRed = 100010,
+        /// <summary>
+        /// Remote control Green button
+        /// </summary>
+        MediaGreen = 100011,
+        /// <summary>
+        /// Remote control Yellow button
+        /// </summary>
+        MediaYellow = 100012,
+        /// <summary>
+        /// Remote control Blue button
+        /// </summary>
+        MediaBlue = 100013,
+        /// <summary>
+        /// Remote control Menu button
+        /// </summary>
+        MediaMenu = 100020,
+        /// <summary>
+        /// Remote control dots button
+        /// </summary>
+        MediaMore = 100021,
+        /// <summary>
+        /// Remote control option button
+        /// </summary>
+        MediaOption = 100022,
+        /// <summary>
+        /// Remote control channel info button
+        /// </summary>
+        MediaInfo = 100023,
+        /// <summary>
+        /// Remote control search button
+        /// </summary>
+        MediaSearch = 100024,
+        /// <summary>
+        /// Remote control subtitle/caption button
+        /// </summary>
+        MediaSubtitle = 100025,
+        /// <summary>
+        /// Remote control Tv guide detail button
+        /// </summary>
+        MediaTvGuide = 100026,
+        /// <summary>
+        /// Remote control Previous Channel
+        /// </summary>
+        MediaPreviousChannel = 100027,
     }
 }

src/Avalonia.Base/Input/KeyDeviceType.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Avalonia.Input
+{
+    public enum KeyDeviceType
+    {
+        Keyboard,
+        Gamepad,
+        Remote
+    }
+}

src/Avalonia.Base/Input/KeyEventArgs.cs

@@ -71,4 +71,9 @@ public class KeyEventArgs : RoutedEventArgs
     /// <see cref="Key"/>
     /// <see cref="PhysicalKey"/>
     public string? KeySymbol { get; init; }
+
+    /// <summary>
+    /// Type of the device that fire the event
+    /// </summary>
+    public KeyDeviceType KeyDeviceType { get; init; }
 }

src/Avalonia.Base/Input/KeyboardDevice.cs

@@ -196,6 +196,7 @@ namespace Avalonia.Input
                             KeyModifiers = keyInput.Modifiers.ToKeyModifiers(),
                             PhysicalKey = keyInput.PhysicalKey,
                             KeySymbol = keyInput.KeySymbol,
+                            KeyDeviceType = keyInput.KeyDeviceType,
                             Source = element
                         };
                         

src/Avalonia.Base/Input/Raw/RawKeyEventArgs.cs

@@ -20,7 +20,7 @@ namespace Avalonia.Input.Raw
             RawKeyEventType type,
             Key key,
             RawInputModifiers modifiers)
-            : this(device, timestamp, root, type, key, modifiers, PhysicalKey.None, null)
+            : this(device, timestamp, root, type, key, modifiers, PhysicalKey.None, KeyDeviceType.Keyboard, null)
         {
             Key = key;
             Type = type;
@@ -36,6 +36,18 @@ namespace Avalonia.Input.Raw
             RawInputModifiers modifiers,
             PhysicalKey physicalKey,
             string? keySymbol)
+            : this(device, timestamp, root, type, key, modifiers, physicalKey, KeyDeviceType.Keyboard, keySymbol) { }
+
+        public RawKeyEventArgs(
+            IInputDevice device,
+            ulong timestamp,
+            IInputRoot root,
+            RawKeyEventType type,
+            Key key,
+            RawInputModifiers modifiers,
+            PhysicalKey physicalKey,
+            KeyDeviceType keyDeviceType,
+            string? keySymbol)
             : base(device, timestamp, root)
         {
             Key = key;
@@ -43,6 +55,7 @@ namespace Avalonia.Input.Raw
             Type = type;
             PhysicalKey = physicalKey;
             KeySymbol = keySymbol;
+            KeyDeviceType = keyDeviceType;
         }
 
         public Key Key { get; set; }
@@ -53,6 +66,8 @@ namespace Avalonia.Input.Raw
 
         public PhysicalKey PhysicalKey { get; set; }
 
+        public KeyDeviceType KeyDeviceType { get; set; }
+
         public string? KeySymbol { get; set; }
     }
 }

src/Avalonia.Base/Media/Pen.cs

@@ -1,4 +1,7 @@
 using System;
+using System.Collections.Generic;
+using System.Collections.Specialized;
+using Avalonia.Collections;
 using Avalonia.Media.Immutable;
 using Avalonia.Rendering.Composition;
 using Avalonia.Rendering.Composition.Drawing;
@@ -56,8 +59,7 @@ namespace Avalonia.Media
         /// Initializes a new instance of the <see cref="Pen"/> class.
         /// </summary>
         public Pen()
-        {
+        { }
-        }
 
         /// <summary>
         /// Initializes a new instance of the <see cref="Pen"/> class.
@@ -75,8 +77,7 @@ namespace Avalonia.Media
             PenLineCap lineCap = PenLineCap.Flat,
             PenLineJoin lineJoin = PenLineJoin.Miter,
             double miterLimit = 10.0) : this(new SolidColorBrush(color), thickness, dashStyle, lineCap, lineJoin, miterLimit)
-        {
+        { }
-        }
 
         /// <summary>
         /// Initializes a new instance of the <see cref="Pen"/> class.
@@ -178,6 +179,69 @@ namespace Avalonia.Media
                 MiterLimit);
         }
         
+        /// <summary>
+        /// Smart reuse and update pen properties.
+        /// </summary>
+        /// <param name="pen">Old pen to modify.</param>
+        /// <param name="brush">The brush used to draw.</param>
+        /// <param name="thickness">The stroke thickness.</param>
+        /// <param name="strokeDashArray">The stroke dask array.</param>
+        /// <param name="strokeDaskOffset">The stroke dask offset.</param>
+        /// <param name="lineCap">The line cap.</param>
+        /// <param name="lineJoin">The line join.</param>
+        /// <param name="miterLimit">The miter limit.</param>
+        /// <returns>If a new instance was created and visual invalidation required.</returns>
+        internal static bool TryModifyOrCreate(ref IPen? pen,
+                                             IBrush? brush,
+                                             double thickness,
+                                             IList<double>? strokeDashArray = null,
+                                             double strokeDaskOffset = default,
+                                             PenLineCap lineCap = PenLineCap.Flat,
+                                             PenLineJoin lineJoin = PenLineJoin.Miter,
+                                             double miterLimit = 10.0)
+        {
+            var previousPen = pen;
+            if (brush is null)
+            {
+                pen = null;
+                return previousPen is not null;
+            }
+            
+            IDashStyle? dashStyle = null;
+            if (strokeDashArray is { Count: > 0 })
+            {
+                // strokeDashArray can be IList (instead of AvaloniaList) in future
+                // So, if it supports notification - create a mutable DashStyle
+                dashStyle = strokeDashArray is INotifyCollectionChanged 
+                    ? new DashStyle(strokeDashArray, strokeDaskOffset) 
+                    : new ImmutableDashStyle(strokeDashArray, strokeDaskOffset);
+            }
+            
+            if (brush is IImmutableBrush immutableBrush && dashStyle is null or ImmutableDashStyle)
+            {
+                pen = new ImmutablePen(
+                    immutableBrush,
+                    thickness,
+                    (ImmutableDashStyle?)dashStyle,
+                    lineCap,
+                    lineJoin,
+                    miterLimit);
+
+                return true;
+            }
+
+            var mutablePen = previousPen as Pen ?? new Pen();
+            mutablePen.Brush = brush;
+            mutablePen.Thickness = thickness;
+            mutablePen.LineCap = lineCap;
+            mutablePen.LineJoin = lineJoin;
+            mutablePen.DashStyle = dashStyle;
+            mutablePen.MiterLimit = miterLimit;
+
+            pen = mutablePen;
+            return !Equals(previousPen, pen);
+        }
+
         void RegisterForSerialization()
         {
             _resource.RegisterForInvalidationOnAllCompositors(this);
@@ -186,21 +250,21 @@ namespace Avalonia.Media
         protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
         {
             RegisterForSerialization();
-            
+
-            if (change.Property == BrushProperty) 
+            if (change.Property == BrushProperty)
                 _resource.ProcessPropertyChangeNotification(change);
-            
+
-            if(change.Property == DashStyleProperty)
+            if (change.Property == DashStyleProperty)
                 UpdateDashStyleSubscription();
             base.OnPropertyChanged(change);
         }
 
-        
+
         void UpdateDashStyleSubscription()
         {
             var newValue = _resource.IsAttached ? DashStyle as DashStyle : null;
-            
+
-            if(ReferenceEquals(_subscribedToDashes, newValue))
+            if (ReferenceEquals(_subscribedToDashes, newValue))
                 return;
 
             if (_subscribedToDashes != null && _weakSubscriber != null)
@@ -221,9 +285,9 @@ namespace Avalonia.Media
                 _subscribedToDashes = newValue;
             }
         }
-        
+
         private CompositorResourceHolder<ServerCompositionSimplePen> _resource;
-        
+
         IPen ICompositionRenderResource<IPen>.GetForCompositor(Compositor c) => _resource.GetForCompositor(c);
 
         void ICompositionRenderResource.AddRefOnCompositor(Compositor c)

src/Avalonia.Base/Media/StreamGeometryContext.cs

@@ -29,22 +29,13 @@ namespace Avalonia.Media
         /// Sets path's winding rule (default is EvenOdd). You should call this method before any calls to BeginFigure. If you wonder why, ask Direct2D guys about their design decisions.
         /// </summary>
         /// <param name="fillRule"></param>
-
         public void SetFillRule(FillRule fillRule)
         {
             _impl.SetFillRule(fillRule);
         }
 
-        /// <summary>
+
-        /// Draws an arc to the specified point.
+        /// <inheritdoc/>
-        /// </summary>
-        /// <param name="point">The destination point.</param>
-        /// <param name="size">The radii of an oval whose perimeter is used to draw the angle.</param>
-        /// <param name="rotationAngle">The rotation angle (in radians) of the oval that specifies the curve.</param>
-        /// <param name="isLargeArc">true to draw the arc greater than 180 degrees; otherwise, false.</param>
-        /// <param name="sweepDirection">
-        /// A value that indicates whether the arc is drawn in the Clockwise or Counterclockwise direction.
-        /// </param>
         public void ArcTo(Point point, Size size, double rotationAngle, bool isLargeArc, SweepDirection sweepDirection)
         {
             _impl.ArcTo(point, size, rotationAngle, isLargeArc, sweepDirection);
@@ -54,8 +45,8 @@ namespace Avalonia.Media
 
         /// <summary>
         /// Draws an arc to the specified point using polylines, quadratic or cubic Bezier curves
-        /// Significantly more precise when drawing elliptic arcs with extreme width:height ratios.        
+        /// Significantly more precise when drawing elliptic arcs with extreme width:height ratios.
-        /// </summary>         
+        /// </summary>
         /// <param name="point">The destination point.</param>
         /// <param name="size">The radii of an oval whose perimeter is used to draw the angle.</param>
         /// <param name="rotationAngle">The rotation angle (in radians) of the oval that specifies the curve.</param>
@@ -68,54 +59,37 @@ namespace Avalonia.Media
             PreciseEllipticArcHelper.ArcTo(this, _currentPoint, point, size, rotationAngle, isLargeArc, sweepDirection);
         }
 
-        /// <summary>
+
-        /// Begins a new figure.
+        /// <inheritdoc/>
-        /// </summary>
-        /// <param name="startPoint">The starting point for the figure.</param>
-        /// <param name="isFilled">Whether the figure is filled.</param>
         public void BeginFigure(Point startPoint, bool isFilled)
         {
             _impl.BeginFigure(startPoint, isFilled);
             _currentPoint = startPoint;
         }
 
-        /// <summary>
+        /// <inheritdoc/>
-        /// Draws a Bezier curve to the specified point.
+        public void CubicBezierTo(Point controlPoint1, Point controlPoint2, Point endPoint)
-        /// </summary>
-        /// <param name="point1">The first control point used to specify the shape of the curve.</param>
-        /// <param name="point2">The second control point used to specify the shape of the curve.</param>
-        /// <param name="point3">The destination point for the end of the curve.</param>
-        public void CubicBezierTo(Point point1, Point point2, Point point3)
         {
-            _impl.CubicBezierTo(point1, point2, point3);
+            _impl.CubicBezierTo(controlPoint1, controlPoint2, endPoint);
-            _currentPoint = point3;
+            _currentPoint = endPoint;
         }
 
-        /// <summary>
+        /// <inheritdoc/>
-        /// Draws a quadratic Bezier curve to the specified point
+        public void QuadraticBezierTo(Point controlPoint , Point endPoint)
-        /// </summary>
-        /// <param name="control">The control point used to specify the shape of the curve.</param>
-        /// <param name="endPoint">The destination point for the end of the curve.</param>
-        public void QuadraticBezierTo(Point control, Point endPoint)
         {
-            _impl.QuadraticBezierTo(control, endPoint);
+            _impl.QuadraticBezierTo(controlPoint , endPoint);
             _currentPoint = endPoint;
         }
 
-        /// <summary>
+
-        /// Draws a line to the specified point.
+        /// <inheritdoc/>
-        /// </summary>
+        public void LineTo(Point endPoint)
-        /// <param name="point">The destination point.</param>
-        public void LineTo(Point point)
         {
-            _impl.LineTo(point);
+            _impl.LineTo(endPoint);
-            _currentPoint = point;
+            _currentPoint = endPoint;
         }
 
-        /// <summary>
+        /// <inheritdoc/>
-        /// Ends the figure started by <see cref="BeginFigure(Point, bool)"/>.
-        /// </summary>
-        /// <param name="isClosed">Whether the figure is closed.</param>
         public void EndFigure(bool isClosed)
         {
             _impl.EndFigure(isClosed);

src/Avalonia.Base/Platform/IGeometryContext.cs

@@ -30,23 +30,23 @@ namespace Avalonia.Platform
         /// <summary>
         /// Draws a Bezier curve to the specified point.
         /// </summary>
-        /// <param name="point1">The first control point used to specify the shape of the curve.</param>
+        /// <param name="controlPoint1">The first control point used to specify the shape of the curve.</param>
-        /// <param name="point2">The second control point used to specify the shape of the curve.</param>
+        /// <param name="controlPoint2">The second control point used to specify the shape of the curve.</param>
-        /// <param name="point3">The destination point for the end of the curve.</param>
+        /// <param name="endPoint">The destination point for the end of the curve.</param>
-        void CubicBezierTo(Point point1, Point point2, Point point3);
+        void CubicBezierTo(Point controlPoint1, Point controlPoint2, Point endPoint);
 
         /// <summary>
         /// Draws a quadratic Bezier curve to the specified point
         /// </summary>
-        /// <param name="control">Control point</param>
+        /// <param name="controlPoint ">Control point</param>
         /// <param name="endPoint">DestinationPoint</param>
-        void QuadraticBezierTo(Point control, Point endPoint);
+        void QuadraticBezierTo(Point controlPoint , Point endPoint);
 
         /// <summary>
         /// Draws a line to the specified point.
         /// </summary>
-        /// <param name="point">The destination point.</param>
+        /// <param name="endPoint">The destination point.</param>
-        void LineTo(Point point);
+        void LineTo(Point endPoint);
 
         /// <summary>
         /// Ends the figure started by <see cref="BeginFigure(Point, bool)"/>.
@@ -55,9 +55,9 @@ namespace Avalonia.Platform
         void EndFigure(bool isClosed);
 
         /// <summary>
-        /// Sets the fill rule.
+        /// Sets path's winding rule (default is EvenOdd). You should call this method before any calls to BeginFigure.
         /// </summary>
-        /// <param name="fillRule">The fill rule.</param>
+        /// <param name="fillRule"></param>
         void SetFillRule(FillRule fillRule);
     }
 }

src/Avalonia.Base/Platform/PathGeometryContext.cs

@@ -20,6 +20,7 @@ namespace Avalonia.Visuals.Platform
             _pathGeometry = null;
         }
 
+        /// <inheritdoc/>
         public void ArcTo(Point point, Size size, double rotationAngle, bool isLargeArc, SweepDirection sweepDirection)
         {
             var arcSegment = new ArcSegment
@@ -34,6 +35,7 @@ namespace Avalonia.Visuals.Platform
             CurrentFigureSegments().Add(arcSegment);
         }
 
+        /// <inheritdoc/>
         public void BeginFigure(Point startPoint, bool isFilled)
         {
             ThrowIfDisposed();
@@ -44,30 +46,34 @@ namespace Avalonia.Visuals.Platform
             _pathGeometry.Figures.Add(_currentFigure);
         }
 
-        public void CubicBezierTo(Point point1, Point point2, Point point3)
+        /// <inheritdoc/>
+        public void CubicBezierTo(Point controlPoint1, Point controlPoint2, Point endPoint)
         {
-            var bezierSegment = new BezierSegment { Point1 = point1, Point2 = point2, Point3 = point3 };
+            var bezierSegment = new BezierSegment { Point1 = controlPoint1, Point2 = controlPoint2, Point3 = endPoint };
 
             CurrentFigureSegments().Add(bezierSegment);
         }
 
-        public void QuadraticBezierTo(Point control, Point endPoint)
+        /// <inheritdoc/>
+        public void QuadraticBezierTo(Point controlPoint , Point endPoint)
         {
-            var quadraticBezierSegment = new QuadraticBezierSegment { Point1 = control, Point2 = endPoint };
+            var quadraticBezierSegment = new QuadraticBezierSegment { Point1 = controlPoint , Point2 = endPoint };
 
             CurrentFigureSegments().Add(quadraticBezierSegment);
         }
 
-        public void LineTo(Point point)
+        /// <inheritdoc/>
+        public void LineTo(Point endPoint)
         {
             var lineSegment = new LineSegment
             {
-                Point = point
+                Point = endPoint
             };
 
             CurrentFigureSegments().Add(lineSegment);
         }
 
+        /// <inheritdoc/>
         public void EndFigure(bool isClosed)
         {
             if (_currentFigure != null)
@@ -78,6 +84,7 @@ namespace Avalonia.Visuals.Platform
             _currentFigure = null;
         }
 
+        /// <inheritdoc/>
         public void SetFillRule(FillRule fillRule)
         {
             ThrowIfDisposed();

src/Avalonia.Base/Styling/ControlTheme.cs

@@ -48,7 +48,7 @@ namespace Avalonia.Styling
 
             if (HasSettersOrAnimations && TargetType.IsAssignableFrom(StyledElement.GetStyleKey(target)))
             {
-                Attach(target, null, type);
+                Attach(target, null, type, true);
                 return SelectorMatchResult.AlwaysThisType;
             }
 

src/Avalonia.Base/Styling/Style.cs

@@ -74,7 +74,7 @@ namespace Avalonia.Styling
 
                 if (match.IsMatch)
                 {
-                    Attach(target, match.Activator, type);
+                    Attach(target, match.Activator, type, Selector is not OrSelector);
                 }
 
                 result = match.Result;

src/Avalonia.Base/Styling/StyleBase.cs

@@ -92,20 +92,24 @@ namespace Avalonia.Styling
             return false;
         }
 
-        internal ValueFrame Attach(StyledElement target, IStyleActivator? activator, FrameType type)
+        internal ValueFrame Attach(
+            StyledElement target,
+            IStyleActivator? activator,
+            FrameType type,
+            bool canShareInstance)
         {
             if (target is not AvaloniaObject ao)
                 throw new InvalidOperationException("Styles can only be applied to AvaloniaObjects.");
 
             StyleInstance instance;
 
-            if (_sharedInstance is not null)
+            if (_sharedInstance is not null && canShareInstance)
             {
                 instance = _sharedInstance;
             }
             else
             {
-                var canShareInstance = activator is null;
+                canShareInstance &= activator is null;
 
                 instance = new StyleInstance(this, activator, type);
 

src/Avalonia.Controls.DataGrid/Themes/Fluent.xaml

@@ -15,6 +15,10 @@
           <SolidColorBrush x:Key="DataGridRowGroupHeaderHoveredBackgroundBrush" Color="{DynamicResource SystemListLowColor}" />
           <SolidColorBrush x:Key="DataGridRowHoveredBackgroundColor" Color="{DynamicResource SystemListLowColor}" />
           <SolidColorBrush x:Key="DataGridRowInvalidBrush" Color="{DynamicResource SystemErrorTextColor}" />
+          <SolidColorBrush x:Key="DataGridRowSelectedBackgroundBrush" Color="{DynamicResource SystemAccentColor}" />
+          <SolidColorBrush x:Key="DataGridRowSelectedHoveredBackgroundBrush" Color="{DynamicResource SystemAccentColor}" />
+          <SolidColorBrush x:Key="DataGridRowSelectedUnfocusedBackgroundBrush" Color="{DynamicResource SystemAccentColor}" />
+          <SolidColorBrush x:Key="DataGridRowSelectedHoveredUnfocusedBackgroundBrush" Color="{DynamicResource SystemAccentColor}" />
           <SolidColorBrush x:Key="DataGridCellFocusVisualPrimaryBrush" Color="{DynamicResource SystemBaseHighColor}" />
           <SolidColorBrush x:Key="DataGridCellFocusVisualSecondaryBrush" Color="{DynamicResource SystemAltMediumColor}" />
           <SolidColorBrush x:Key="DataGridCellInvalidBrush" Color="{DynamicResource SystemErrorTextColor}" />
@@ -34,6 +38,10 @@
           <SolidColorBrush x:Key="DataGridRowGroupHeaderHoveredBackgroundBrush" Color="{DynamicResource SystemListLowColor}" />
           <SolidColorBrush x:Key="DataGridRowHoveredBackgroundColor" Color="{DynamicResource SystemListLowColor}" />
           <SolidColorBrush x:Key="DataGridRowInvalidBrush" Color="{DynamicResource SystemErrorTextColor}" />
+          <SolidColorBrush x:Key="DataGridRowSelectedBackgroundBrush" Color="{DynamicResource SystemAccentColor}" />
+          <SolidColorBrush x:Key="DataGridRowSelectedHoveredBackgroundBrush" Color="{DynamicResource SystemAccentColor}" />
+          <SolidColorBrush x:Key="DataGridRowSelectedUnfocusedBackgroundBrush" Color="{DynamicResource SystemAccentColor}" />
+          <SolidColorBrush x:Key="DataGridRowSelectedHoveredUnfocusedBackgroundBrush" Color="{DynamicResource SystemAccentColor}" />
           <SolidColorBrush x:Key="DataGridCellFocusVisualPrimaryBrush" Color="{DynamicResource SystemBaseHighColor}" />
           <SolidColorBrush x:Key="DataGridCellFocusVisualSecondaryBrush" Color="{DynamicResource SystemAltMediumColor}" />
           <SolidColorBrush x:Key="DataGridCellInvalidBrush" Color="{DynamicResource SystemErrorTextColor}" />
@@ -53,13 +61,9 @@
     <StreamGeometry x:Key="DataGridRowGroupHeaderIconOpenedPath">M109 486 19 576 1024 1581 2029 576 1939 486 1024 1401z</StreamGeometry>
 
     <StaticResource x:Key="DataGridRowBackgroundBrush" ResourceKey="SystemControlTransparentBrush" />
-    <SolidColorBrush x:Key="DataGridRowSelectedBackgroundBrush" Color="{DynamicResource SystemAccentColor}" />
     <StaticResource x:Key="DataGridRowSelectedBackgroundOpacity" ResourceKey="ListAccentLowOpacity" />
-    <SolidColorBrush x:Key="DataGridRowSelectedHoveredBackgroundBrush" Color="{DynamicResource SystemAccentColor}" />
     <StaticResource x:Key="DataGridRowSelectedHoveredBackgroundOpacity" ResourceKey="ListAccentMediumOpacity" />
-    <SolidColorBrush x:Key="DataGridRowSelectedUnfocusedBackgroundBrush" Color="{DynamicResource SystemAccentColor}" />
     <StaticResource x:Key="DataGridRowSelectedUnfocusedBackgroundOpacity" ResourceKey="ListAccentLowOpacity" />
-    <SolidColorBrush x:Key="DataGridRowSelectedHoveredUnfocusedBackgroundBrush" Color="{DynamicResource SystemAccentColor}" />
     <StaticResource x:Key="DataGridRowSelectedHoveredUnfocusedBackgroundOpacity" ResourceKey="ListAccentMediumOpacity" />
     <StaticResource x:Key="DataGridCellBackgroundBrush" ResourceKey="SystemControlTransparentBrush" />
     <StaticResource x:Key="DataGridCurrencyVisualPrimaryBrush" ResourceKey="SystemControlTransparentBrush" />

src/Avalonia.Controls/ApplicationLifetimes/ActivatedEventArgs.cs

@@ -0,0 +1,23 @@
+using System;
+
+namespace Avalonia.Controls.ApplicationLifetimes;
+
+/// <summary>
+/// Event args for an Application Lifetime Activated or Deactivated events.
+/// </summary>
+public class ActivatedEventArgs : EventArgs
+{
+    /// <summary>
+    /// Ctor for ActivatedEventArgs
+    /// </summary>
+    /// <param name="kind">The <see cref="ActivationKind"/> that this event represents</param>
+    public ActivatedEventArgs(ActivationKind kind)
+    {
+        Kind = kind;
+    }
+      
+    /// <summary>
+    /// The <see cref="ActivationKind"/> that this event represents.
+    /// </summary>
+    public ActivationKind Kind { get; }
+}

src/Avalonia.Controls/ApplicationLifetimes/ActivationKind.cs

@@ -0,0 +1,25 @@
+namespace Avalonia.Controls.ApplicationLifetimes;
+
+public enum ActivationKind
+{
+    /// <summary>
+    /// When the application is passed a URI to open.
+    /// </summary>
+    OpenUri = 20, 
+    
+    /// <summary>
+    /// When the application is asked to reopen.
+    /// An example of this is on MacOS when all the windows are closed,
+    /// application continues to run in the background and the user clicks
+    /// the application's dock icon. 
+    /// </summary>
+    Reopen = 30,
+    
+    /// <summary>
+    /// When the application enters or leaves a background state.
+    /// An example is when on MacOS the user hides or shows and application (not window),
+    /// or when a browser application switchs tabs or when a mobile applications goes into
+    /// the background.
+    /// </summary>
+    Background = 40
+}

src/Avalonia.Controls/ApplicationLifetimes/ClassicDesktopStyleApplicationLifetime.cs

@@ -211,11 +211,16 @@ namespace Avalonia
         public static int StartWithClassicDesktopLifetime(
             this AppBuilder builder, string[] args, ShutdownMode shutdownMode = ShutdownMode.OnLastWindowClose)
         {
-            var lifetime = new ClassicDesktopStyleApplicationLifetime()
+            var lifetime = AvaloniaLocator.Current.GetService<ClassicDesktopStyleApplicationLifetime>();
+
+            if (lifetime == null)
             {
-                Args = args,
+                lifetime = new ClassicDesktopStyleApplicationLifetime();
-                ShutdownMode = shutdownMode
+            }
-            };
+
+            lifetime.Args = args;
+            lifetime.ShutdownMode = shutdownMode;
+
             builder.SetupWithLifetime(lifetime);
             return lifetime.Start(args);
         }

src/Avalonia.Controls/ApplicationLifetimes/IActivatableApplicationLifetime.cs

@@ -0,0 +1,35 @@
+using System;
+
+namespace Avalonia.Controls.ApplicationLifetimes;
+
+/// <summary>
+/// An interface for ApplicationLifetimes where the application can be Activated and Deactivated.
+/// </summary>
+public interface IActivatableApplicationLifetime
+{
+    /// <summary>
+    /// An event that is raised when the application is Activated for various reasons
+    /// as described by the <see cref="ActivationKind"/> enumeration.
+    /// </summary>
+    event EventHandler<ActivatedEventArgs> Activated;
+    
+    /// <summary>
+    /// An event that is raised when the application is Deactivated for various reasons
+    /// as described by the <see cref="ActivationKind"/> enumeration.
+    /// </summary>
+    event EventHandler<ActivatedEventArgs> Deactivated;
+
+    /// <summary>
+    /// Tells the application that it should attempt to leave its background state.
+    /// For example on OSX this would be [NSApp unhide]
+    /// </summary>
+    /// <returns>true if it was possible and the platform supports this. false otherwise</returns>
+    public bool TryLeaveBackground();
+
+    /// <summary>
+    /// Tells the application that it should attempt to enter its background state.
+    /// For example on OSX this would be [NSApp hide]
+    /// </summary>
+    /// <returns>true if it was possible and the platform supports this. false otherwise</returns>
+    public bool TryEnterBackground();
+}

src/Avalonia.Controls/ApplicationLifetimes/ProtocolActivatedEventArgs.cs

@@ -0,0 +1,13 @@
+using System;
+
+namespace Avalonia.Controls.ApplicationLifetimes;
+
+public class ProtocolActivatedEventArgs : ActivatedEventArgs
+{
+    public ProtocolActivatedEventArgs(ActivationKind kind, Uri uri) : base(kind)
+    {
+        Uri = uri;
+    }
+
+    public Uri Uri { get; }
+}

src/Avalonia.Controls/ContextMenu.cs

@@ -265,7 +265,7 @@ namespace Avalonia.Controls
             }
 
             control ??= _attachedControls![0];
-            Open(control, PlacementTarget ?? control, false);
+            Open(control, PlacementTarget ?? control, Placement);
         }
 
         /// <summary>
@@ -303,7 +303,7 @@ namespace Avalonia.Controls
             remove => _popupHostChangedHandler -= value;
         }
 
-        private void Open(Control control, Control placementTarget, bool requestedByPointer)
+        private void Open(Control control, Control placementTarget, PlacementMode placement)
         {
             if (IsOpen)
             {
@@ -330,9 +330,7 @@ namespace Avalonia.Controls
                 ((ISetLogicalParent)_popup).SetParent(control);
             }
 
-            _popup.Placement = !requestedByPointer && Placement == PlacementMode.Pointer
+            _popup.Placement = placement;
-                ? PlacementMode.Bottom
-                : Placement;
 
             //Position of the line below is really important. 
             //All styles are being applied only when control has logical parent.
@@ -420,7 +418,10 @@ namespace Avalonia.Controls
                 && !contextMenu.CancelOpening())
             {
                 var requestedByPointer = e.TryGetPosition(null, out _);
-                contextMenu.Open(control, e.Source as Control ?? control, requestedByPointer);
+                contextMenu.Open(
+                    control, 
+                    e.Source as Control ?? control, 
+                    requestedByPointer ? contextMenu.Placement : PlacementMode.Bottom);
                 e.Handled = true;
             }
         }

src/Avalonia.Controls/Platform/INativeApplicationCommands.cs

@@ -5,6 +5,7 @@ namespace Avalonia.Controls.Platform
     /// </summary>
     internal interface INativeApplicationCommands
     {
+        void ShowApp();
         void HideApp();
         void ShowAll();
         void HideOthers();

src/Avalonia.Controls/Presenters/ContentPresenter.cs

@@ -169,7 +169,12 @@ namespace Avalonia.Controls.Presenters
         /// </summary>
         static ContentPresenter()
         {
-            AffectsRender<ContentPresenter>(BackgroundProperty, BorderBrushProperty, BorderThicknessProperty, CornerRadiusProperty);
+            AffectsRender<ContentPresenter>(
+                BackgroundProperty,
+                BorderBrushProperty,
+                BorderThicknessProperty,
+                CornerRadiusProperty,
+                BoxShadowProperty);
             AffectsArrange<ContentPresenter>(HorizontalContentAlignmentProperty, VerticalContentAlignmentProperty);
             AffectsMeasure<ContentPresenter>(BorderThicknessProperty, PaddingProperty);
         }

src/Avalonia.Controls/Presenters/TextPresenter.cs

@@ -595,12 +595,6 @@ namespace Avalonia.Controls.Presenters
             InvalidateMeasure();
         }
 
-        protected override void OnLoaded(RoutedEventArgs e)
-        {
-            base.OnLoaded(e);
-            EnsureTextSelectionLayer();
-        }
-
         protected override Size MeasureOverride(Size availableSize)
         {
             _constraint = availableSize;
@@ -894,8 +888,7 @@ namespace Avalonia.Controls.Presenters
 
             ResetCaretTimer();
 
-            if (TextSelectionHandleCanvas is { } canvas && _layer != null && !_layer.Children.Contains(canvas))
+            EnsureTextSelectionLayer();
-                _layer?.Add(TextSelectionHandleCanvas);
         }
 
         private void EnsureTextSelectionLayer()
@@ -903,10 +896,17 @@ namespace Avalonia.Controls.Presenters
             if (TextSelectionHandleCanvas == null)
             {
                 TextSelectionHandleCanvas = new TextSelectionHandleCanvas();
-                TextSelectionHandleCanvas.SetPresenter(this);
             }
+            TextSelectionHandleCanvas.SetPresenter(this);
             _layer = TextSelectorLayer.GetTextSelectorLayer(this);
-            if (_layer != null && !_layer.Children.Contains(TextSelectionHandleCanvas))
+            if (TextSelectionHandleCanvas.VisualParent is { } parent && parent != _layer)
+            {
+                if (parent is TextSelectorLayer l)
+                {
+                    l.Remove(TextSelectionHandleCanvas);
+                }
+            }
+            if (_layer != null && TextSelectionHandleCanvas.VisualParent != _layer)
                 _layer?.Add(TextSelectionHandleCanvas);
         }
 

src/Avalonia.Controls/Primitives/SelectingItemsControl.cs

@@ -1,6 +1,5 @@
 using System;
 using System.Collections;
-using System.Collections.Generic;
 using System.Collections.Specialized;
 using System.ComponentModel;
 using System.Diagnostics.CodeAnalysis;
@@ -8,7 +7,6 @@ using System.Linq;
 using Avalonia.Controls.Selection;
 using Avalonia.Data;
 using Avalonia.Input;
-using Avalonia.Input.Platform;
 using Avalonia.Interactivity;
 using Avalonia.Metadata;
 using Avalonia.Threading;
@@ -187,14 +185,21 @@ namespace Avalonia.Controls.Primitives
         /// </summary>
         public int SelectedIndex
         {
-            get =>
+            get
+            {
                 // When a Begin/EndInit/DataContext update is in place we return the value to be
                 // updated here, even though it's not yet active and the property changed notification
                 // has not yet been raised. If we don't do this then the old value will be written back
                 // to the source when two-way bound, and the update value will be lost.
-                _updateState?.SelectedIndex.HasValue == true ?
+                if (_updateState is not null)
-                    _updateState.SelectedIndex.Value :
+                {
-                    Selection.SelectedIndex;
+                    return _updateState.SelectedIndex.HasValue ?
+                        _updateState.SelectedIndex.Value :
+                        TryGetExistingSelection()?.SelectedIndex ?? -1;
+                }
+
+                return Selection.SelectedIndex;
+            }
             set
             {
                 if (_updateState is object)
@@ -213,11 +218,18 @@ namespace Avalonia.Controls.Primitives
         /// </summary>
         public object? SelectedItem
         {
-            get =>
+            get
-                // See SelectedIndex setter for more information.
+            {
-                _updateState?.SelectedItem.HasValue == true ?
+                // See SelectedIndex getter for more information.
-                    _updateState.SelectedItem.Value :
+                if (_updateState is not null)
-                    Selection.SelectedItem;
+                {
+                    return _updateState.SelectedItem.HasValue ?
+                        _updateState.SelectedItem.Value :
+                        TryGetExistingSelection()?.SelectedItem;
+                }
+
+                return Selection.SelectedItem;
+            }
             set
             {
                 if (_updateState is object)
@@ -270,6 +282,7 @@ namespace Avalonia.Controls.Primitives
                 {
                     return _updateState.SelectedItems.Value;
                 }
+
                 else if (Selection is InternalSelectionModel ism)
                 {
                     var result = ism.WritableSelectedItems;
@@ -456,10 +469,8 @@ namespace Avalonia.Controls.Primitives
         protected override void OnAttachedToVisualTree(VisualTreeAttachmentEventArgs e)
         {
             base.OnAttachedToVisualTree(e);
-            if (Selection?.AnchorIndex is int index)
+
-            {
+            AutoScrollToSelectedItemIfNecessary(GetAnchorIndex());
-                AutoScrollToSelectedItemIfNecessary(index);
-            }
         }
 
         /// <inheritdoc />
@@ -470,10 +481,8 @@ namespace Avalonia.Controls.Primitives
             void ExecuteScrollWhenLayoutUpdated(object? sender, EventArgs e)
             {
                 LayoutUpdated -= ExecuteScrollWhenLayoutUpdated;
-                if (Selection?.AnchorIndex is int index)
+
-                {
+                AutoScrollToSelectedItemIfNecessary(GetAnchorIndex());
-                    AutoScrollToSelectedItemIfNecessary(index);
-                }
             }
 
             if (AutoScrollToSelectedItem)
@@ -482,6 +491,15 @@ namespace Avalonia.Controls.Primitives
             }
         }
 
+        internal int GetAnchorIndex()
+        {
+            var selection = _updateState is not null ? TryGetExistingSelection() : Selection;
+            return selection?.AnchorIndex ?? -1;
+        }
+
+        private ISelectionModel? TryGetExistingSelection()
+            => _updateState?.Selection.HasValue == true ? _updateState.Selection.Value : _selection;
+
         protected internal override void PrepareContainerForItemOverride(Control container, object? item, int index)
         {
             // Ensure that the selection model is created at this point so that accessing it in 
@@ -634,10 +652,7 @@ namespace Avalonia.Controls.Primitives
 
             if (change.Property == AutoScrollToSelectedItemProperty)
             {
-                if (Selection?.AnchorIndex is int index)
+                AutoScrollToSelectedItemIfNecessary(GetAnchorIndex());
-                {
-                    AutoScrollToSelectedItemIfNecessary(index);
-                }
             }
             else if (change.Property == SelectionModeProperty && _selection is object)
             {
@@ -671,7 +686,7 @@ namespace Avalonia.Controls.Primitives
                     return;
                 }
 
-                var value = change.GetNewValue<IBinding>();
+                var value = change.GetNewValue<IBinding?>();
                 if (value is null)
                 {
                     // Clearing SelectedValueBinding makes the SelectedValue the item itself
@@ -921,11 +936,10 @@ namespace Avalonia.Controls.Primitives
             if (e.PropertyName == nameof(ISelectionModel.AnchorIndex))
             {
                 _hasScrolledToSelectedItem = false;
-                if (Selection?.AnchorIndex is int index)
+
-                {
+                var anchorIndex = GetAnchorIndex();
-                    KeyboardNavigation.SetTabOnceActiveElement(this, ContainerFromIndex(index));
+                KeyboardNavigation.SetTabOnceActiveElement(this, ContainerFromIndex(anchorIndex));
-                    AutoScrollToSelectedItemIfNecessary(index);
+                AutoScrollToSelectedItemIfNecessary(anchorIndex);
-                }
             }
             else if (e.PropertyName == nameof(ISelectionModel.SelectedIndex) && _oldSelectedIndex != SelectedIndex)
             {
@@ -1279,9 +1293,17 @@ namespace Avalonia.Controls.Primitives
                         state.SelectedItem = item;
                 }
 
+                // SelectedIndex vs SelectedItem:
+                // - If only one has a value, use it
+                // - If both have a value, prefer the one having a "non-empty" value, e.g. not -1 nor null
+                // - If both have a "non-empty" value, prefer the index
                 if (state.SelectedIndex.HasValue)
                 {
-                    SelectedIndex = state.SelectedIndex.Value;
+                    var selectedIndex = state.SelectedIndex.Value;
+                    if (selectedIndex >= 0 || !state.SelectedItem.HasValue)
+                        SelectedIndex = selectedIndex;
+                    else
+                        SelectedItem = state.SelectedItem.Value;
                 }
                 else if (state.SelectedItem.HasValue)
                 {
@@ -1338,39 +1360,12 @@ namespace Avalonia.Controls.Primitives
         // - Both the old and new SelectionModels have the incorrect Source
         private class UpdateState
         {
-            private Optional<int> _selectedIndex;
-            private Optional<object?> _selectedItem;
-            private Optional<object?> _selectedValue;
-
             public int UpdateCount { get; set; }
             public Optional<ISelectionModel> Selection { get; set; }
             public Optional<IList?> SelectedItems { get; set; }
-
+            public Optional<int> SelectedIndex { get; set; }
-            public Optional<int> SelectedIndex
+            public Optional<object?> SelectedItem { get; set; }
-            {
+            public Optional<object?> SelectedValue { get; set; }
-                get => _selectedIndex;
-                set
-                {
-                    _selectedIndex = value;
-                    _selectedItem = default;
-                }
-            }
-
-            public Optional<object?> SelectedItem
-            {
-                get => _selectedItem;
-                set
-                {
-                    _selectedItem = value;
-                    _selectedIndex = default;
-                }
-            }
-
-            public Optional<object?> SelectedValue
-            {
-                get => _selectedValue;
-                set => _selectedValue = value;
-            }
         }
 
         /// <summary>

src/Avalonia.Controls/Primitives/TextSelectionCanvas.cs

@@ -250,6 +250,8 @@ namespace Avalonia.Controls.Primitives
 
         internal void SetPresenter(TextPresenter? textPresenter)
         {
+            if (_presenter == textPresenter)
+                return;
             _presenter = textPresenter;
             if (_presenter != null)
             {

src/Avalonia.Controls/Remote/RemoteWidget.cs

@@ -26,7 +26,7 @@ namespace Avalonia.Controls.Remote
             Mode = SizingMode.Local;
 
             _connection = connection;
-            _connection.OnMessage += (t, msg) => Dispatcher.UIThread.Post(() => OnMessage(msg));
+            _connection.OnMessage += (t, msg) => Dispatcher.UIThread.Post(OnMessage, msg);
             _connection.Send(new ClientSupportedPixelFormatsMessage
             {
                 Formats = new[]
@@ -39,7 +39,7 @@ namespace Avalonia.Controls.Remote
 
         public SizingMode Mode { get; set; }
 
-        private void OnMessage(object msg)
+        private void OnMessage(object? msg)
         {
             if (msg is FrameMessage frame)
             {

src/Avalonia.Controls/Shapes/Shape.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using Avalonia.Collections;
 using Avalonia.Media;
 using Avalonia.Media.Immutable;
@@ -62,14 +63,7 @@ namespace Avalonia.Controls.Shapes
         private Matrix _transform = Matrix.Identity;
         private Geometry? _definingGeometry;
         private Geometry? _renderedGeometry;
-
+        private IPen? _strokePen;
-        static Shape()
-        {
-            AffectsMeasure<Shape>(StretchProperty, StrokeThicknessProperty);
-
-            AffectsRender<Shape>(FillProperty, StrokeProperty, StrokeDashArrayProperty, StrokeDashOffsetProperty,
-                StrokeThicknessProperty, StrokeLineCapProperty, StrokeJoinProperty);
-        }
 
         /// <summary>
         /// Gets a value that represents the <see cref="Geometry"/> of the shape.
@@ -199,30 +193,7 @@ namespace Avalonia.Controls.Shapes
 
             if (geometry != null)
             {
-                var stroke = Stroke;
+                context.DrawGeometry(Fill, _strokePen, geometry);
-
-                ImmutablePen? pen = null;
-
-                if (stroke != null)
-                {
-                    var strokeDashArray = StrokeDashArray;
-
-                    ImmutableDashStyle? dashStyle = null;
-
-                    if (strokeDashArray != null && strokeDashArray.Count > 0)
-                    {
-                        dashStyle = new ImmutableDashStyle(strokeDashArray, StrokeDashOffset);
-                    }
-
-                    pen = new ImmutablePen(
-                        stroke.ToImmutable(),
-                        StrokeThickness,
-                        dashStyle,
-                        StrokeLineCap,
-                        StrokeJoin);
-                }
-
-                context.DrawGeometry(Fill, pen, geometry);
             }
         }
 
@@ -266,6 +237,34 @@ namespace Avalonia.Controls.Shapes
             InvalidateMeasure();
         }
 
+        protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
+        {
+            base.OnPropertyChanged(change);
+
+            if (change.Property == StrokeProperty
+                || change.Property == StrokeThicknessProperty
+                || change.Property == StrokeDashArrayProperty
+                || change.Property == StrokeDashOffsetProperty
+                || change.Property == StrokeLineCapProperty
+                || change.Property == StrokeJoinProperty)
+            {
+                if (change.Property == StrokeProperty
+                    || change.Property == StrokeThicknessProperty)
+                {
+                    InvalidateMeasure();
+                }
+                
+                if (!Pen.TryModifyOrCreate(ref _strokePen, Stroke, StrokeThickness, StrokeDashArray, StrokeDashOffset, StrokeLineCap, StrokeJoin))
+                {
+                    InvalidateVisual();
+                }
+            }
+            else if (change.Property == FillProperty)
+            {
+                InvalidateVisual();
+            }
+        }
+
         protected override Size MeasureOverride(Size availableSize)
         {
             if (DefiningGeometry is null)

src/Avalonia.Controls/TextBox.cs

@@ -1307,13 +1307,13 @@ namespace Avalonia.Controls
                 {
                     case Key.Left:
                         selection = DetectSelection();
-                        MoveHorizontal(-1, hasWholeWordModifiers, selection);
+                        MoveHorizontal(-1, hasWholeWordModifiers, selection, true);
                         movement = true;
                         break;
 
                     case Key.Right:
                         selection = DetectSelection();
-                        MoveHorizontal(1, hasWholeWordModifiers, selection);
+                        MoveHorizontal(1, hasWholeWordModifiers, selection, true);
                         movement = true;
                         break;
 
@@ -1781,7 +1781,7 @@ namespace Avalonia.Controls
         /// </summary>
         public void Clear() => SetCurrentValue(TextProperty, string.Empty);
 
-        private void MoveHorizontal(int direction, bool wholeWord, bool isSelecting)
+        private void MoveHorizontal(int direction, bool wholeWord, bool isSelecting, bool moveCaretPosition)
         {
             if (_presenter == null)
             {
@@ -1836,10 +1836,13 @@ namespace Avalonia.Controls
                 }
 
                 SetCurrentValue(SelectionEndProperty, SelectionEnd + offset);
+                
+                if (moveCaretPosition)
+                {
+                    _presenter.MoveCaretToTextPosition(SelectionEnd);
+                }
 
-                _presenter.MoveCaretToTextPosition(SelectionEnd);
+                if (!isSelecting && moveCaretPosition)
-
-                if (!isSelecting)
                 {
                     SetCurrentValue(CaretIndexProperty, SelectionEnd);
                 }
@@ -1976,7 +1979,7 @@ namespace Avalonia.Controls
 
                 _presenter?.MoveCaretToTextPosition(start);
 
-                SetCurrentValue(CaretIndexProperty, start);
+                SetCurrentValue(SelectionStartProperty, start);
 
                 ClearSelection();
 
@@ -2066,9 +2069,16 @@ namespace Avalonia.Controls
 
         private void SetSelectionForControlBackspace()
         {
+            var text = Text ?? string.Empty;
             var selectionStart = CaretIndex;
 
-            MoveHorizontal(-1, true, false);
+            MoveHorizontal(-1, true, false, false);
+            
+            if (SelectionEnd > 0 && 
+                selectionStart < text.Length && text[selectionStart] == ' ')
+            {
+                SetCurrentValue(SelectionEndProperty, SelectionEnd - 1);
+            }
 
             SetCurrentValue(SelectionStartProperty, selectionStart);
         }
@@ -2083,7 +2093,7 @@ namespace Avalonia.Controls
 
             SetCurrentValue(SelectionStartProperty, CaretIndex);
 
-            MoveHorizontal(1, true, true);
+            MoveHorizontal(1, true, true, false);
 
             if (SelectionEnd < textLength && Text![SelectionEnd] == ' ')
             {

src/Avalonia.Controls/TopLevel.cs

@@ -291,6 +291,7 @@ namespace Avalonia.Controls
                             KeyModifiers = (KeyModifiers)rawKeyEventArgs.Modifiers,
                             Key = rawKeyEventArgs.Key,
                             PhysicalKey = rawKeyEventArgs.PhysicalKey,
+                            KeyDeviceType= rawKeyEventArgs.KeyDeviceType,
                             KeySymbol = rawKeyEventArgs.KeySymbol
                         };
 

src/Avalonia.Controls/Utils/BorderRenderHelper.cs

@@ -17,6 +17,7 @@ namespace Avalonia.Controls.Utils
         private Thickness _borderThickness;
         private CornerRadius _cornerRadius;
         private bool _initialized;
+        private IPen? _cachedPen;
 
 
         void Update(Size finalSize, Thickness borderThickness, CornerRadius cornerRadius)
@@ -87,22 +88,17 @@ namespace Avalonia.Controls.Utils
 
         public void Render(DrawingContext context,
             Size finalSize, Thickness borderThickness, CornerRadius cornerRadius,
-            IBrush? background, IBrush? borderBrush, BoxShadows boxShadows, double borderDashOffset = 0,
+            IBrush? background, IBrush? borderBrush, BoxShadows boxShadows)
-            PenLineCap borderLineCap = PenLineCap.Flat, PenLineJoin borderLineJoin = PenLineJoin.Miter,
-            AvaloniaList<double>? borderDashArray = null)
         {
             if (_size != finalSize
                 || _borderThickness != borderThickness
                 || _cornerRadius != cornerRadius
                 || !_initialized)
                 Update(finalSize, borderThickness, cornerRadius);
-            RenderCore(context, background, borderBrush, boxShadows, borderDashOffset, borderLineCap, borderLineJoin,
+            RenderCore(context, background, borderBrush, boxShadows);
-                borderDashArray);
         }
 
-        void RenderCore(DrawingContext context, IBrush? background, IBrush? borderBrush, BoxShadows boxShadows,
+        void RenderCore(DrawingContext context, IBrush? background, IBrush? borderBrush, BoxShadows boxShadows)
-            double borderDashOffset, PenLineCap borderLineCap, PenLineJoin borderLineJoin,
-            AvaloniaList<double>? borderDashArray)
         {
             if (_useComplexRendering)
             {
@@ -121,26 +117,8 @@ namespace Avalonia.Controls.Utils
             else
             {
                 var borderThickness = _borderThickness.Top;
-                IPen? pen = null;
-
-
-                ImmutableDashStyle? dashStyle = null;
-
-                if (borderDashArray != null && borderDashArray.Count > 0)
-                {
-                    dashStyle = new ImmutableDashStyle(borderDashArray, borderDashOffset);
-                }
-
-                if (borderBrush != null && borderThickness > 0)
-                {
-                    pen = new ImmutablePen(
-                        borderBrush.ToImmutable(),
-                        borderThickness,
-                        dashStyle,
-                        borderLineCap,
-                        borderLineJoin);
-                }
 
+                Pen.TryModifyOrCreate(ref _cachedPen, borderBrush, borderThickness);
 
                 var rect = new Rect(_size);
                 if (!MathUtilities.IsZero(borderThickness))
@@ -148,7 +126,7 @@ namespace Avalonia.Controls.Utils
                 var rrect = new RoundedRect(rect, _cornerRadius.TopLeft, _cornerRadius.TopRight,
                     _cornerRadius.BottomRight, _cornerRadius.BottomLeft);
 
-                context.DrawRectangle(background, pen, rrect, boxShadows);
+                context.DrawRectangle(background, _cachedPen, rrect, boxShadows);
             }
         }
 

src/Avalonia.DesignerSupport/Remote/RemoteDesignerEntryPoint.cs

@@ -202,24 +202,24 @@ namespace Avalonia.DesignerSupport.Remote
         }
 
         private static Window s_currentWindow;
-        private static void OnTransportMessage(IAvaloniaRemoteTransportConnection transport, object obj) => Dispatcher.UIThread.Post(() =>
+        private static void OnTransportMessage(IAvaloniaRemoteTransportConnection transport, object obj) => Dispatcher.UIThread.Post(static arg =>
         {
-            if (obj is ClientSupportedPixelFormatsMessage formats)
+            if (arg is ClientSupportedPixelFormatsMessage formats)
             {
                 s_supportedPixelFormats = formats;
                 RebuildPreFlight();
             }
-            if (obj is ClientRenderInfoMessage renderInfo)
+            if (arg is ClientRenderInfoMessage renderInfo)
             {
                 s_renderInfoMessage = renderInfo;
                 RebuildPreFlight();
             }
-            if (obj is ClientViewportAllocatedMessage viewport)
+            if (arg is ClientViewportAllocatedMessage viewport)
             {
                 s_viewportAllocatedMessage = viewport;
                 RebuildPreFlight();
             }
-            if (obj is UpdateXamlMessage xaml)
+            if (arg is UpdateXamlMessage xaml)
             {
                 if (s_currentWindow is not null)
                     s_lastRenderScaling = s_currentWindow.RenderScaling;
@@ -247,6 +247,6 @@ namespace Avalonia.DesignerSupport.Remote
                     });
                 }
             }
-        });
+        }, obj);
     }
 }

src/Avalonia.Diagnostics/Diagnostics/DevToolsOptions.cs

@@ -52,5 +52,10 @@ namespace Avalonia.Diagnostics
         /// Get or set Focus Highlighter <see cref="Brush"/>
         /// </summary>
         public IBrush? FocusHighlighterBrush { get; set; }
+
+        /// <summary>
+        /// Set the <see cref="DevToolsViewKind">kind</see> of diagnostic view that show at launch of DevTools
+        /// </summary>
+        public DevToolsViewKind LaunchView { get; init; }
     }
 }

src/Avalonia.Diagnostics/Diagnostics/DevToolsViewKind.cs

@@ -0,0 +1,20 @@
+namespace Avalonia.Diagnostics;
+
+/// <summary>
+/// Kinds of diagnostic views available in DevTools
+/// </summary>
+public enum DevToolsViewKind
+{
+    /// <summary>
+    /// The Logical Tree diagnostic view
+    /// </summary>
+    LogicalTree,
+    /// <summary>
+    /// The Visual Tree diagnostic view
+    /// </summary>
+    VisualTree,
+    /// <summary>
+    /// Events diagnostic view
+    /// </summary>
+    Events,
+}

src/Avalonia.Diagnostics/Diagnostics/ViewModels/MainViewModel.cs

@@ -338,6 +338,7 @@ namespace Avalonia.Diagnostics.ViewModels
             StartupScreenIndex = options.StartupScreenIndex;
             ShowImplementedInterfaces = options.ShowImplementedInterfaces;
             FocusHighlighter = options.FocusHighlighterBrush;
+            SelectedTab = (int)options.LaunchView;
         }
 
         public bool ShowImplementedInterfaces

src/Avalonia.FreeDesktop/Avalonia.FreeDesktop.csproj

@@ -13,7 +13,7 @@
 
   <ItemGroup>
     <PackageReference Include="Tmds.DBus.Protocol" Version="0.15.0" />
-    <PackageReference Include="Tmds.DBus.SourceGenerator" Version="0.0.11" PrivateAssets="All" />
+    <PackageReference Include="Tmds.DBus.SourceGenerator" Version="0.0.13" PrivateAssets="All" />
   </ItemGroup>
 
   <ItemGroup>

src/Avalonia.FreeDesktop/DBusIme/DBusTextInputMethodBase.cs

@@ -179,12 +179,23 @@ namespace Avalonia.FreeDesktop.DBusIme
                 _disposables.Add(d);
         }
 
-        public void Dispose()
+        public async void Dispose()
         {
             foreach(var d in _disposables)
                 d.Dispose();
             _disposables.Clear();
-            _ = DisconnectAsync();
+            if (!IsConnected)
+                return;
+            try
+            {
+                await DisconnectAsync();
+            }
+            catch (Exception ex)
+            {
+                Logger.TryGet(LogEventLevel.Error, "IME")
+                    ?.Log(this, "Error while destroying the context:\n" + ex);
+            }
+
             _currentName = null;
         }
 

src/Avalonia.Native/AvaloniaNativeApplicationPlatform.cs

@@ -13,6 +13,38 @@ namespace Avalonia.Native
         void IAvnApplicationEvents.FilesOpened(IAvnStringArray urls)
         {
             ((IApplicationPlatformEvents)Application.Current).RaiseUrlsOpened(urls.ToStringArray());
+
+            if (Application.Current?.ApplicationLifetime is MacOSClassicDesktopStyleApplicationLifetime lifetime)
+            {
+                foreach (var url in urls.ToStringArray())
+                {
+                    lifetime.RaiseUrl(new Uri(url));
+                }
+            }
+        }
+
+        void IAvnApplicationEvents.OnReopen()
+        {
+            if (Application.Current?.ApplicationLifetime is MacOSClassicDesktopStyleApplicationLifetime lifetime)
+            {
+                lifetime.RaiseActivated(ActivationKind.Reopen);    
+            }
+        }
+
+        void IAvnApplicationEvents.OnHide()
+        {
+            if (Application.Current?.ApplicationLifetime is MacOSClassicDesktopStyleApplicationLifetime lifetime)
+            {
+                lifetime.RaiseDeactivated(ActivationKind.Background);    
+            }
+        }
+
+        void IAvnApplicationEvents.OnUnhide()
+        {
+            if (Application.Current?.ApplicationLifetime is MacOSClassicDesktopStyleApplicationLifetime lifetime)
+            {
+                lifetime.RaiseActivated(ActivationKind.Background);    
+            }
         }
 
         public int TryShutdown()

src/Avalonia.Native/AvaloniaNativeMenuExporter.cs

@@ -146,6 +146,8 @@ namespace Avalonia.Native
             appMenu.Add(quitItem);
         }
 
+        private void DoLayoutReset() => DoLayoutReset(false);
+
         private void DoLayoutReset(bool forceUpdate = false)
         {
             var macOpts = AvaloniaLocator.Current.GetService<MacOSPlatformOptions>() ?? new MacOSPlatformOptions();
@@ -195,7 +197,7 @@ namespace Avalonia.Native
             if (_resetQueued)
                 return;
             _resetQueued = true;
-            Dispatcher.UIThread.Post(() => DoLayoutReset(), DispatcherPriority.Background);
+            Dispatcher.UIThread.Post(DoLayoutReset, DispatcherPriority.Background);
         }
 
         private void SetMenu(NativeMenu menu)
@@ -252,9 +254,9 @@ namespace Avalonia.Native
             {
                 _nativeMenu = __MicroComIAvnMenuProxy.Create(_factory);
 
-                _nativeMenu.Initialize(this, menu, "");     
+                _nativeMenu.Initialize(this, menu, "");
 
-                setMenu = true;           
+                setMenu = true;
             }
 
             _nativeMenu.Update(_factory, menu);
@@ -273,9 +275,9 @@ namespace Avalonia.Native
             {
                 _nativeMenu = __MicroComIAvnMenuProxy.Create(_factory);
 
-                _nativeMenu.Initialize(this, menu, "");     
+                _nativeMenu.Initialize(this, menu, "");
 
-                setMenu = true;           
+                setMenu = true;
             }
 
             _nativeMenu.Update(_factory, menu);

src/Avalonia.Native/AvaloniaNativePlatformExtensions.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
 using Avalonia.Native;
 
 namespace Avalonia
@@ -24,6 +25,9 @@ namespace Avalonia
                     });
             });
 
+            AvaloniaLocator.CurrentMutable.Bind<ClassicDesktopStyleApplicationLifetime>()
+                .ToConstant(new MacOSClassicDesktopStyleApplicationLifetime());
+
             return builder;
         }
     }

src/Avalonia.Native/MacOSClassicDesktopStyleApplicationLifetime.cs

@@ -0,0 +1,50 @@
+using System;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Controls.Platform;
+
+namespace Avalonia.Native;
+
+#nullable enable
+
+internal class MacOSClassicDesktopStyleApplicationLifetime : ClassicDesktopStyleApplicationLifetime,
+    IActivatableApplicationLifetime
+{
+    /// <inheritdoc />
+    public event EventHandler<ActivatedEventArgs>? Activated;
+    
+    /// <inheritdoc />
+    public event EventHandler<ActivatedEventArgs>? Deactivated;
+
+    /// <inheritdoc />
+    public bool TryLeaveBackground()
+    {
+        var nativeApplicationCommands = AvaloniaLocator.Current.GetService<INativeApplicationCommands>();
+        nativeApplicationCommands?.ShowApp();
+
+        return true;
+    }
+
+    /// <inheritdoc />
+    public bool TryEnterBackground()
+    {
+        var nativeApplicationCommands = AvaloniaLocator.Current.GetService<INativeApplicationCommands>();
+        nativeApplicationCommands?.HideApp();
+
+        return true;
+    }
+
+    internal void RaiseUrl(Uri uri)
+    {
+        Activated?.Invoke(this, new ProtocolActivatedEventArgs(ActivationKind.OpenUri, uri));
+    }
+    
+    internal void RaiseActivated(ActivationKind kind)
+    {
+        Activated?.Invoke(this, new ActivatedEventArgs(kind));
+    }
+
+    internal void RaiseDeactivated(ActivationKind kind)
+    {
+        Deactivated?.Invoke(this, new ActivatedEventArgs(kind));
+    }
+}

src/Avalonia.Native/MacOSNativeMenuCommands.cs

@@ -13,6 +13,11 @@ namespace Avalonia.Native
             _commands = commands;
         }
 
+        public void ShowApp()
+        {
+            _commands.UnhideApp();
+        }
+
         public void HideApp()
         {
             _commands.HideApp();
@@ -28,7 +33,6 @@ namespace Avalonia.Native
             _commands.HideOthers();
         }
 
-
         public static readonly AttachedProperty<bool> IsServicesSubmenuProperty =
             AvaloniaProperty.RegisterAttached<MacOSNativeMenuCommands, NativeMenu, bool>("IsServicesSubmenu", false);
     }

src/Avalonia.Native/WindowImplBase.cs

@@ -10,10 +10,8 @@ using Avalonia.Input;
 using Avalonia.Input.Platform;
 using Avalonia.Input.Raw;
 using Avalonia.Native.Interop;
-using Avalonia.OpenGL;
 using Avalonia.Platform;
 using Avalonia.Platform.Storage;
-using Avalonia.Rendering;
 using Avalonia.Rendering.Composition;
 using Avalonia.Threading;
 
@@ -58,7 +56,6 @@ namespace Avalonia.Native
         private readonly IKeyboardDevice _keyboard;
         private readonly ICursorFactory _cursorFactory;
         private Size _savedLogicalSize;
-        private Size _lastRenderedLogicalSize;
         private double _savedScaling;
         private NativeControlHostImpl _nativeControlHost;
         private IStorageProvider _storageProvider;
@@ -172,7 +169,6 @@ namespace Avalonia.Native
                         if (_parent._native != null && _target != null)
                         {
                             cb(_parent._native);
-                            _parent._lastRenderedLogicalSize = _parent._savedLogicalSize;
                         }
                     }
                 }, (int)w, (int)h, new Vector(dpi, dpi));

src/Avalonia.Native/avn.idl

@@ -1087,11 +1087,15 @@ interface IAvnApplicationEvents : IUnknown
 {
      void FilesOpened (IAvnStringArray* urls);
      bool TryShutdown();
+     void OnReopen ();
+     void OnHide ();
+     void OnUnhide ();
 }
 
 [uuid(b4284791-055b-4313-8c2e-50f0a8c72ce9)]
 interface IAvnApplicationCommands : IUnknown
 {
+    HRESULT UnhideApp();
     HRESULT HideApp();
     HRESULT ShowAll();
     HRESULT HideOthers();

src/Avalonia.OpenGL/Controls/OpenGlControlBase.cs

@@ -220,15 +220,15 @@ namespace Avalonia.OpenGL.Controls
 
         [Obsolete("Use RequestNextFrameRendering()"), EditorBrowsable(EditorBrowsableState.Never)]
         // ReSharper disable once MemberCanBeProtected.Global
-        public new void InvalidateVisual() => RequestNextFrameRendering(); 
+        public new void InvalidateVisual() => RequestNextFrameRendering();
-        
+
         public void RequestNextFrameRendering()
         {
             if ((_initialization == null || _initialization is { Status: TaskStatus.RanToCompletion }) &&
-                !_updateQueued)
+                !_updateQueued && _compositor != null)
             {
                 _updateQueued = true;
-                _compositor?.RequestCompositionUpdate(_update);
+                _compositor.RequestCompositionUpdate(_update);
             }
         }
 

src/Avalonia.OpenGL/Egl/EglContext.cs

@@ -154,7 +154,7 @@ namespace Avalonia.OpenGL.Egl
                 ShareWith = _sharedWith ?? this
             });
 
-        public bool IsCurrent => _egl.GetCurrentDisplay() == _disp.Handle && _egl.GetCurrentContext() == Context;
+        public bool IsCurrent => _context != default && _egl.GetCurrentDisplay() == _disp.Handle && _egl.GetCurrentContext() == _context;
 
         public void Dispose()
         {

src/Avalonia.Themes.Fluent/Accents/FluentControlResources.xaml

@@ -385,6 +385,9 @@
       <StaticResource x:Key="CalendarViewNavigationButtonBorderBrushPointerOver"
                       ResourceKey="SystemControlHighlightTransparentBrush" />
       <StaticResource x:Key="CalendarViewNavigationButtonBorderBrush" ResourceKey="SystemControlTransparentBrush" />
+      <x:Double x:Key="CalendarFontSize">20</x:Double>
+      <x:Double x:Key="CalendarDayButtonFontSize">12</x:Double>
+      <FontWeight x:Key="CalendarViewTodayFontWeight">SemiBold</FontWeight>
 
       <!-- Resources for Expander.xaml -->
       <!-- Expander:Header -->
@@ -1180,6 +1183,9 @@
       <StaticResource x:Key="CalendarViewNavigationButtonBorderBrushPointerOver"
                       ResourceKey="SystemControlHighlightTransparentBrush" />
       <StaticResource x:Key="CalendarViewNavigationButtonBorderBrush" ResourceKey="SystemControlTransparentBrush" />
+      <x:Double x:Key="CalendarFontSize">20</x:Double>
+      <x:Double x:Key="CalendarDayButtonFontSize">12</x:Double>
+      <FontWeight x:Key="CalendarViewTodayFontWeight">SemiBold</FontWeight>
 
       <!-- Resources for Expander.xaml -->
       <!-- Expander:Header -->

src/Avalonia.Themes.Fluent/Controls/AutoCompleteBox.xaml

@@ -28,7 +28,6 @@
       <Setter Property="BorderBrush" Value="{DynamicResource TextControlBorderBrush}" />
       <Setter Property="BorderThickness" Value="{DynamicResource TextControlBorderThemeThickness}" />
       <Setter Property="CornerRadius" Value="{DynamicResource ControlCornerRadius}" />
-      <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
       <Setter Property="Padding" Value="{DynamicResource TextControlThemePadding}" />
       <Setter Property="MaxDropDownHeight" Value="{DynamicResource AutoCompleteListMaxHeight}" />
       <Setter Property="Template">
@@ -43,9 +42,6 @@
                      BorderThickness="{TemplateBinding BorderThickness}"
                      CornerRadius="{TemplateBinding CornerRadius}"
                      CaretIndex="{TemplateBinding CaretIndex, Mode=TwoWay}"
-                     FontSize="{TemplateBinding FontSize}"
-                     FontFamily="{TemplateBinding FontFamily}"
-                     FontWeight="{TemplateBinding FontWeight}"
                      Padding="{TemplateBinding Padding}"
                      Margin="0"
                      DataValidationErrors.Errors="{TemplateBinding (DataValidationErrors.Errors)}" />

src/Avalonia.Themes.Fluent/Controls/ButtonSpinner.xaml

@@ -79,7 +79,6 @@
     <Setter Property="CornerRadius" Value="{DynamicResource ControlCornerRadius}" />
     <Setter Property="MinHeight" Value="{DynamicResource TextControlThemeMinHeight}" />
     <Setter Property="MinWidth" Value="{DynamicResource TextControlThemeMinWidth}" />
-    <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
     <Setter Property="HorizontalContentAlignment" Value="Stretch" />
     <Setter Property="VerticalContentAlignment" Value="Center" />
     <Setter Property="Focusable" Value="True"/>
@@ -104,7 +103,6 @@
                               VerticalAlignment="Stretch"
                               VerticalContentAlignment="Center"
                               Foreground="{TemplateBinding Foreground}"
-                              FontSize="{TemplateBinding FontSize}"
                               MinWidth="34">
                   <PathIcon Width="16"
                             Height="8"
@@ -119,7 +117,6 @@
                               VerticalAlignment="Stretch"
                               VerticalContentAlignment="Center"
                               Foreground="{TemplateBinding Foreground}"
-                              FontSize="{TemplateBinding FontSize}"
                               MinWidth="34">
                   <PathIcon Width="16"
                             Height="8"

src/Avalonia.Themes.Fluent/Controls/Calendar.xaml

@@ -21,6 +21,7 @@
     <Setter Property="BorderThickness" Value="1" />
     <Setter Property="HorizontalAlignment" Value="Left" />
     <Setter Property="VerticalAlignment" Value="Center" />
+    <Setter Property="FontSize" Value="{DynamicResource CalendarFontSize}" />
     <Setter Property="Template">
       <ControlTemplate>
         <StackPanel

src/Avalonia.Themes.Fluent/Controls/CalendarButton.xaml

@@ -26,7 +26,6 @@
     <Setter Property="Background" Value="{DynamicResource CalendarViewCalendarItemRevealBackground}" />
     <Setter Property="BorderBrush" Value="{DynamicResource CalendarViewCalendarItemRevealBorderBrush}" />
     <Setter Property="BorderThickness" Value="2" />
-    <Setter Property="FontSize" Value="20" />
     <Setter Property="ClipToBounds" Value="False" />
     <Setter Property="HorizontalContentAlignment" Value="Center" />
     <Setter Property="VerticalContentAlignment" Value="Center" />
@@ -41,7 +40,6 @@
                               Content="{TemplateBinding Content}"
                               HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                               VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
-                              FontSize="{TemplateBinding FontSize}"
                               Margin="{TemplateBinding Padding}" />
           </Border>
 
@@ -73,7 +71,7 @@
 
       <Style Selector="^ /template/ ContentPresenter#Content">
         <Setter Property="Foreground" Value="{DynamicResource CalendarViewTodayForeground}" />
-        <Setter Property="FontWeight" Value="SemiBold" />
+        <Setter Property="FontWeight" Value="{DynamicResource CalendarViewTodayFontWeight}" />
       </Style>
 
       <Style Selector="^:pointerover">

src/Avalonia.Themes.Fluent/Controls/CalendarDayButton.xaml

@@ -26,7 +26,6 @@
     <Setter Property="Background" Value="{DynamicResource CalendarViewCalendarItemRevealBackground}" />
     <Setter Property="BorderBrush" Value="{DynamicResource CalendarViewCalendarItemRevealBorderBrush}" />
     <Setter Property="BorderThickness" Value="2" />
-    <Setter Property="FontSize" Value="20" />
     <Setter Property="ClipToBounds" Value="False" />
     <Setter Property="HorizontalContentAlignment" Value="Center" />
     <Setter Property="VerticalContentAlignment" Value="Center" />
@@ -42,7 +41,6 @@
                             Content="{TemplateBinding Content}"
                             HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
                             VerticalAlignment="{TemplateBinding VerticalContentAlignment}"
-                            FontSize="{TemplateBinding FontSize}"
                             Margin="{TemplateBinding Padding}" />
 
           </Border>

src/Avalonia.Themes.Fluent/Controls/CalendarItem.xaml

@@ -27,7 +27,6 @@
     <Setter Property="HorizontalAlignment" Value="Stretch" />
     <Setter Property="VerticalAlignment" Value="Stretch" />
     <Setter Property="VerticalContentAlignment" Value="Center" />
-    <Setter Property="FontSize" Value="20" />
     <Setter Property="Background" Value="{DynamicResource CalendarViewNavigationButtonBackground}" />
     <Setter Property="Template">
       <ControlTemplate>
@@ -61,7 +60,7 @@
         <TextBlock Text="{Binding}"
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
-                   FontSize="12" />
+                   FontSize="{DynamicResource CalendarDayButtonFontSize}" />
       </Template>
     </Setter>
 

src/Avalonia.Themes.Fluent/Controls/CheckBox.xaml

@@ -18,7 +18,6 @@
     <Setter Property="VerticalAlignment" Value="Center" />
     <Setter Property="HorizontalContentAlignment" Value="Left" />
     <Setter Property="VerticalContentAlignment" Value="Center" />
-    <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
     <Setter Property="CornerRadius" Value="{DynamicResource ControlCornerRadius}" />
     <Setter Property="MinHeight" Value="32" />
     <Setter Property="Foreground" Value="{DynamicResource CheckBoxForegroundUnchecked}" />

src/Avalonia.Themes.Fluent/Controls/ComboBox.xaml

@@ -53,7 +53,6 @@
     <Setter Property="VerticalContentAlignment" Value="Center" />
     <Setter Property="HorizontalAlignment" Value="Left" />
     <Setter Property="VerticalAlignment" Value="Top" />
-    <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
     <Setter Property="PlaceholderForeground" Value="{DynamicResource ComboBoxPlaceHolderForeground}" />
     <Setter Property="Template">
       <ControlTemplate>

src/Avalonia.Themes.Fluent/Controls/ContextMenu.xaml

@@ -42,8 +42,6 @@
     <Setter Property="MinHeight" Value="{DynamicResource MenuFlyoutThemeMinHeight}" />
     <Setter Property="Padding" Value="{DynamicResource MenuFlyoutPresenterThemePadding}" />
     <Setter Property="HorizontalAlignment" Value="Stretch" />
-    <Setter Property="TextBlock.FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
-    <Setter Property="TextBlock.FontWeight" Value="Normal" />
     <Setter Property="WindowManagerAddShadowHint" Value="False" />
     <Setter Property="Template">
       <ControlTemplate>

src/Avalonia.Themes.Fluent/Controls/DatePicker.xaml

@@ -72,7 +72,6 @@
   </ControlTheme>
   
   <ControlTheme x:Key="{x:Type DatePicker}" TargetType="DatePicker">
-    <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
     <Setter Property="Foreground" Value="{DynamicResource DatePickerButtonForeground}" />
     <Setter Property="Background" Value="{DynamicResource DatePickerButtonBackground}"/>
     <Setter Property="BorderBrush" Value="{DynamicResource DatePickerButtonBorderBrush}"/>
@@ -99,20 +98,11 @@
                     TemplatedControl.IsTemplateFocusTarget="True">
               <Grid Name="PART_ButtonContentGrid" ColumnDefinitions="78*,Auto,132*,Auto,78*">
                 <TextBlock Name="PART_DayTextBlock" Text="day" HorizontalAlignment="Center"
-                           Padding="{DynamicResource DatePickerHostPadding}"
+                           Padding="{DynamicResource DatePickerHostPadding}"/>
-                           FontFamily="{TemplateBinding FontFamily}"
-                           FontWeight="{TemplateBinding FontWeight}"
-                           FontSize="{TemplateBinding FontSize}"/>
                 <TextBlock Name="PART_MonthTextBlock" Text="month" TextAlignment="Left"
-                           Padding="{DynamicResource DatePickerHostMonthPadding}"
+                           Padding="{DynamicResource DatePickerHostMonthPadding}"/>
-                           FontFamily="{TemplateBinding FontFamily}"
-                           FontWeight="{TemplateBinding FontWeight}"
-                           FontSize="{TemplateBinding FontSize}"/>
                 <TextBlock Name="PART_YearTextBlock" Text="year" HorizontalAlignment="Center"
-                           Padding="{DynamicResource DatePickerHostPadding}"
+                           Padding="{DynamicResource DatePickerHostPadding}"/>
-                           FontFamily="{TemplateBinding FontFamily}"
-                           FontWeight="{TemplateBinding FontWeight}"
-                           FontSize="{TemplateBinding FontSize}"/>
                 <Rectangle x:Name="PART_FirstSpacer"
                       Fill="{DynamicResource DatePickerSpacerFill}"
                       HorizontalAlignment="Center"
@@ -156,8 +146,6 @@
     <Setter Property="Width" Value="296" />
     <Setter Property="MinWidth" Value="296" />
     <Setter Property="MaxHeight" Value="398" />
-    <Setter Property="FontWeight" Value="Normal" />
-    <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
     <Setter Property="Background" Value="{DynamicResource DatePickerFlyoutPresenterBackground}" />
     <Setter Property="BorderBrush" Value="{DynamicResource DatePickerFlyoutPresenterBorderBrush}" />
     <Setter Property="BorderThickness" Value="{DynamicResource DateTimeFlyoutBorderThickness}" />

src/Avalonia.Themes.Fluent/Controls/HeaderedContentControl.xaml

@@ -19,10 +19,6 @@
                               ContentTemplate="{TemplateBinding HeaderTemplate}"
                               HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                               VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
-                              FontSize="{TemplateBinding FontSize}"
-                              FontWeight="{TemplateBinding FontWeight}"
-                              FontFamily="{TemplateBinding FontFamily}"
-                              FontStyle="{TemplateBinding FontStyle}"
                               Grid.Row="0" />
             <ContentPresenter Name="PART_ContentPresenter"
                               ContentTemplate="{TemplateBinding ContentTemplate}"
@@ -30,10 +26,6 @@
                               RecognizesAccessKey="True"
                               VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
                               HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
-                              FontSize="{TemplateBinding FontSize}"
-                              FontWeight="{TemplateBinding FontWeight}"
-                              FontFamily="{TemplateBinding FontFamily}"
-                              FontStyle="{TemplateBinding FontStyle}"
                               Grid.Row="1" />
           </Grid>
         </Border>

src/Avalonia.Themes.Fluent/Controls/ListBox.xaml

@@ -21,7 +21,6 @@
     <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto" />
     <Setter Property="ScrollViewer.IsScrollChainingEnabled" Value="True" />
     <Setter Property="ScrollViewer.IsScrollInertiaEnabled" Value="True" />
-    <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
     <Setter Property="Template">
       <ControlTemplate>
         <Border Name="border"

src/Avalonia.Themes.Fluent/Controls/ListBoxItem.xaml

@@ -14,12 +14,9 @@
     </Border>
   </Design.PreviewWith>
   <Thickness x:Key="ListBoxItemPadding">12,9,12,12</Thickness>
-  <FontWeight x:Key="ListBoxItemFontWeight">Normal</FontWeight>
   <ControlTheme x:Key="{x:Type ListBoxItem}" TargetType="ListBoxItem">
     <Setter Property="Background" Value="Transparent" />
     <Setter Property="Padding" Value="{DynamicResource ListBoxItemPadding}" />
-    <Setter Property="FontWeight" Value="{DynamicResource ListBoxItemFontWeight}" />
-    <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
     <Setter Property="Template">
       <ControlTemplate>
         <ContentPresenter Name="PART_ContentPresenter"
@@ -29,8 +26,6 @@
                           CornerRadius="{TemplateBinding CornerRadius}"
                           ContentTemplate="{TemplateBinding ContentTemplate}"
                           Content="{TemplateBinding Content}"
-                          FontWeight="{TemplateBinding FontWeight}"
-                          FontSize="{TemplateBinding FontSize}"
                           Padding="{TemplateBinding Padding}"
                           VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
                           HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" />

src/Avalonia.Themes.Fluent/Controls/Menu.xaml

@@ -17,7 +17,6 @@
     <Setter Property="Background" Value="{DynamicResource MenuFlyoutItemBackground}" />
     <Setter Property="Foreground" Value="{DynamicResource MenuFlyoutItemForeground}" />
     <!--  Narrow padding should be used for mouse input, when non-narrow one should be used for touch input in future.  -->
-    <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
     <Setter Property="Padding" Value="{DynamicResource MenuBarItemPadding}" />
     <Setter Property="Template">
       <ControlTemplate>

src/Avalonia.Themes.Fluent/Controls/MenuItem.xaml

@@ -60,7 +60,6 @@
     <Setter Property="Foreground" Value="{DynamicResource MenuFlyoutItemForeground}" />
     <!--  Narrow padding should be used for mouse input, when non-narrow one should be used for touch input in future.  -->
     <Setter Property="Padding" Value="{DynamicResource MenuFlyoutItemThemePaddingNarrow}" />
-    <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
     <Setter Property="Template">
       <ControlTemplate>
         <Panel>
@@ -81,15 +80,11 @@
                                   SharedSizeGroup="MenuItemChevron" />
               </Grid.ColumnDefinitions>
 
-              <Viewbox Name="PART_IconPresenter"
+              <ContentControl x:Name="PART_IconPresenter"
-                       Margin="{DynamicResource MenuIconPresenterMargin}"
+                              Theme="{StaticResource FluentMenuItemIconTheme}"
-                       StretchDirection="DownOnly"
+                              Content="{TemplateBinding Icon}"
-                       HorizontalAlignment="Center"
+                              IsVisible="False"
-                       VerticalAlignment="Center"
+                              Margin="{DynamicResource MenuIconPresenterMargin}" />
-                       IsVisible="False"
-                       Width="16" Height="16">
-                <ContentPresenter Content="{TemplateBinding Icon}"/>
-              </Viewbox>
 
               <ContentPresenter Name="PART_HeaderPresenter"
                                 Content="{TemplateBinding Header}"
@@ -143,7 +138,7 @@
       </ControlTemplate>
     </Setter>
 
-    <Style Selector="^:icon /template/ Viewbox#PART_IconPresenter">
+    <Style Selector="^:icon /template/ ContentControl#PART_IconPresenter">
       <Setter Property="IsVisible" Value="True" />
     </Style>
     <Style Selector="^:selected">
@@ -210,4 +205,21 @@
     <Setter Property="Padding" Value="{DynamicResource HorizontalMenuFlyoutItemThemePaddingNarrow}" />
     <Setter Property="Margin" Value="{DynamicResource HorizontalMenuFlyoutItemMargin}" />
   </ControlTheme>
+  <ControlTheme x:Key="FluentMenuItemIconTheme"
+                TargetType="ContentControl">
+    <Setter Property="Width"
+            Value="16" />
+    <Setter Property="Height"
+            Value="16" />
+    <Setter Property="Template">
+      <ControlTemplate>
+        <Viewbox
+          StretchDirection="DownOnly"
+          HorizontalAlignment="Center"
+          VerticalAlignment="Center">
+          <ContentPresenter x:Name="PART_ContentPresenter" Content="{TemplateBinding Content}" />
+        </Viewbox>
+      </ControlTemplate>
+    </Setter>
+  </ControlTheme>
 </ResourceDictionary>

src/Avalonia.Themes.Fluent/Controls/NotificationCard.xaml

@@ -9,7 +9,6 @@
   <ControlTheme x:Key="{x:Type NotificationCard}" TargetType="NotificationCard">
     <Setter Property="UseLayoutRounding" Value="True"/>
     <Setter Property="Width" Value="350"/>
-    <Setter Property="FontSize" Value="14"/>
     <Setter Property="Foreground" Value="{DynamicResource NotificationCardForegroundBrush}"/>
     <Setter Property="RenderTransformOrigin" Value="50%,75%"/>
     <Setter Property="BorderThickness" Value="0" />

src/Avalonia.Themes.Fluent/Controls/NumericUpDown.xaml

@@ -26,7 +26,6 @@
     <Setter Property="BorderBrush" Value="{DynamicResource TextControlBorderBrush}" />
     <Setter Property="MinHeight" Value="{DynamicResource TextControlThemeMinHeight}" />
     <Setter Property="MinWidth" Value="{DynamicResource TextControlThemeMinWidth}" />
-    <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
     <Setter Property="Padding" Value="{DynamicResource TextControlThemePadding}" />
     <Setter Property="CornerRadius" Value="{DynamicResource ControlCornerRadius}" />
     <Setter Property="Template">
@@ -51,7 +50,6 @@
                    Padding="{TemplateBinding Padding}"
                    MinWidth="0"
                    Foreground="{TemplateBinding Foreground}"
-                   FontSize="{TemplateBinding FontSize}"
                    Watermark="{TemplateBinding Watermark}"
                    IsReadOnly="{TemplateBinding IsReadOnly}"
                    VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"

src/Avalonia.Themes.Fluent/Controls/OverlayPopupHost.xaml

@@ -5,7 +5,7 @@
     <Setter Property="Foreground" Value="{DynamicResource SystemControlForegroundBaseHighBrush}"/>
     <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}"/>
     <Setter Property="FontFamily" Value="{DynamicResource ContentControlThemeFontFamily}" />
-    <Setter Property="FontWeight" Value="400" />
+    <Setter Property="FontWeight" Value="Normal" />
     <Setter Property="FontStyle" Value="Normal" />
     <Setter Property="Template">
       <ControlTemplate>

src/Avalonia.Themes.Fluent/Controls/PopupRoot.xaml

@@ -7,7 +7,7 @@
     <Setter Property="Foreground" Value="{DynamicResource SystemControlForegroundBaseHighBrush}" />
     <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
     <Setter Property="FontFamily" Value="{DynamicResource ContentControlThemeFontFamily}" />
-    <Setter Property="FontWeight" Value="400" />
+    <Setter Property="FontWeight" Value="Normal" />
     <Setter Property="FontStyle" Value="Normal" />
     <Setter Property="Template">
       <ControlTemplate>

src/Avalonia.Themes.Fluent/Controls/RadioButton.xaml

@@ -21,7 +21,6 @@
     <Setter Property="VerticalAlignment" Value="Center" />
     <Setter Property="HorizontalContentAlignment" Value="Left" />
     <Setter Property="VerticalContentAlignment" Value="Center" />
-    <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
     <Setter Property="Template">
       <ControlTemplate TargetType="RadioButton">
         <Border

src/Avalonia.Themes.Fluent/Controls/RepeatButton.xaml

@@ -20,8 +20,6 @@
     <Setter Property="Padding" Value="{StaticResource ButtonPadding}" />
     <Setter Property="HorizontalAlignment" Value="Left" />
     <Setter Property="VerticalAlignment" Value="Center" />
-    <Setter Property="FontWeight" Value="Normal" />
-    <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
     <Setter Property="RenderTransform" Value="none" />
     <Setter Property="Template">
       <ControlTemplate>

src/Avalonia.Themes.Fluent/Controls/Slider.xaml

@@ -91,7 +91,6 @@
     <Setter Property="Background" Value="{DynamicResource SliderTrackFill}" />
     <Setter Property="BorderThickness" Value="{DynamicResource SliderBorderThemeThickness}" />
     <Setter Property="Foreground" Value="{DynamicResource SliderTrackValueFill}" />
-    <Setter Property="FontSize" Value="{DynamicResource ControlContentThemeFontSize}" />
     <Style Selector="^:horizontal">
       <Setter Property="Template">
         <ControlTemplate>