MVP of Accessibility/UI automation support

.editorconfig

@@ -137,7 +137,7 @@ space_within_single_line_array_initializer_braces = true
 csharp_wrap_before_ternary_opsigns = false
 
 # Xaml files
-[*.xaml]
+[*.{xaml,axaml}]
 indent_size = 2
 
 # Xml project files

.ncrunch/Avalonia.IntegrationTests.Win32.v3.ncrunchproject

@@ -0,0 +1,5 @@
+<ProjectConfiguration>
+  <Settings>
+    <IgnoreThisComponentCompletely>True</IgnoreThisComponentCompletely>
+  </Settings>
+</ProjectConfiguration>

.ncrunch/IntegrationTestApp.v3.ncrunchproject

@@ -0,0 +1,5 @@
+<ProjectConfiguration>
+  <Settings>
+    <IgnoreThisComponentCompletely>True</IgnoreThisComponentCompletely>
+  </Settings>
+</ProjectConfiguration>

Avalonia.sln

@@ -226,11 +226,15 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Avalonia.ReactiveUI.Events"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sandbox", "samples\Sandbox\Sandbox.csproj", "{11BE52AF-E2DD-4CF0-B19A-05285ACAF571}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MicroComGenerator", "src\tools\MicroComGenerator\MicroComGenerator.csproj", "{AEC9031E-06EA-4A9E-9E7F-7D7C719404DD}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MicroComGenerator", "src\tools\MicroComGenerator\MicroComGenerator.csproj", "{AEC9031E-06EA-4A9E-9E7F-7D7C719404DD}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Avalonia.MicroCom", "src\Avalonia.MicroCom\Avalonia.MicroCom.csproj", "{FE2F3E5E-1E34-4972-8DC1-5C2C588E5ECE}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Avalonia.MicroCom", "src\Avalonia.MicroCom\Avalonia.MicroCom.csproj", "{FE2F3E5E-1E34-4972-8DC1-5C2C588E5ECE}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MiniMvvm", "samples\MiniMvvm\MiniMvvm.csproj", "{BC594FD5-4AF2-409E-A1E6-04123F54D7C5}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MiniMvvm", "samples\MiniMvvm\MiniMvvm.csproj", "{BC594FD5-4AF2-409E-A1E6-04123F54D7C5}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "IntegrationTestApp", "samples\IntegrationTestApp\IntegrationTestApp.csproj", "{676D6BFD-029D-4E43-BFC7-3892265CE251}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Avalonia.IntegrationTests.Win32", "tests\Avalonia.IntegrationTests.Win32\Avalonia.IntegrationTests.Win32.csproj", "{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}"
 EndProject
 Global
 	GlobalSection(SharedMSBuildProjectFiles) = preSolution
@@ -2142,6 +2146,54 @@ Global
 		{BC594FD5-4AF2-409E-A1E6-04123F54D7C5}.Release|iPhone.Build.0 = Release|Any CPU
 		{BC594FD5-4AF2-409E-A1E6-04123F54D7C5}.Release|iPhoneSimulator.ActiveCfg = Release|Any CPU
 		{BC594FD5-4AF2-409E-A1E6-04123F54D7C5}.Release|iPhoneSimulator.Build.0 = Release|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Ad-Hoc|Any CPU.ActiveCfg = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Ad-Hoc|Any CPU.Build.0 = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Ad-Hoc|iPhone.ActiveCfg = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Ad-Hoc|iPhone.Build.0 = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Ad-Hoc|iPhoneSimulator.ActiveCfg = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Ad-Hoc|iPhoneSimulator.Build.0 = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.AppStore|Any CPU.ActiveCfg = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.AppStore|Any CPU.Build.0 = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.AppStore|iPhone.ActiveCfg = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.AppStore|iPhone.Build.0 = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.AppStore|iPhoneSimulator.ActiveCfg = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.AppStore|iPhoneSimulator.Build.0 = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Debug|iPhone.ActiveCfg = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Debug|iPhone.Build.0 = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Debug|iPhoneSimulator.ActiveCfg = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Debug|iPhoneSimulator.Build.0 = Debug|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Release|Any CPU.Build.0 = Release|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Release|iPhone.ActiveCfg = Release|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Release|iPhone.Build.0 = Release|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Release|iPhoneSimulator.ActiveCfg = Release|Any CPU
+		{676D6BFD-029D-4E43-BFC7-3892265CE251}.Release|iPhoneSimulator.Build.0 = Release|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Ad-Hoc|Any CPU.ActiveCfg = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Ad-Hoc|Any CPU.Build.0 = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Ad-Hoc|iPhone.ActiveCfg = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Ad-Hoc|iPhone.Build.0 = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Ad-Hoc|iPhoneSimulator.ActiveCfg = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Ad-Hoc|iPhoneSimulator.Build.0 = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.AppStore|Any CPU.ActiveCfg = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.AppStore|Any CPU.Build.0 = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.AppStore|iPhone.ActiveCfg = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.AppStore|iPhone.Build.0 = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.AppStore|iPhoneSimulator.ActiveCfg = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.AppStore|iPhoneSimulator.Build.0 = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Debug|iPhone.ActiveCfg = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Debug|iPhone.Build.0 = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Debug|iPhoneSimulator.ActiveCfg = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Debug|iPhoneSimulator.Build.0 = Debug|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Release|iPhone.ActiveCfg = Release|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Release|iPhone.Build.0 = Release|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Release|iPhoneSimulator.ActiveCfg = Release|Any CPU
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A}.Release|iPhoneSimulator.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -2183,6 +2235,7 @@ Global
 		{29132311-1848-4FD6-AE0C-4FF841151BD3} = {9B9E3891-2366-4253-A952-D08BCEB71098}
 		{7D2D3083-71DD-4CC9-8907-39A0D86FB322} = {3743B0F2-CC41-4F14-A8C8-267F579BF91E}
 		{39D7B147-1A5B-47C2-9D01-21FB7C47C4B3} = {9B9E3891-2366-4253-A952-D08BCEB71098}
+		{86C53C40-57AA-45B8-AD42-FAE0EFDF0F2B} = {A689DEF5-D50F-4975-8B72-124C9EB54066}
 		{854568D5-13D1-4B4F-B50D-534DC7EFD3C9} = {86C53C40-57AA-45B8-AD42-FAE0EFDF0F2B}
 		{638580B0-7910-40EF-B674-DCB34DA308CD} = {A0CC0258-D18C-4AB3-854F-7101680FC3F9}
 		{CBC4FF2F-92D4-420B-BE21-9FE0B930B04E} = {B39A8919-9F95-48FE-AD7B-76E08B509888}
@@ -2203,6 +2256,8 @@ Global
 		{11BE52AF-E2DD-4CF0-B19A-05285ACAF571} = {9B9E3891-2366-4253-A952-D08BCEB71098}
 		{AEC9031E-06EA-4A9E-9E7F-7D7C719404DD} = {4ED8B739-6F4E-4CD4-B993-545E6B5CE637}
 		{BC594FD5-4AF2-409E-A1E6-04123F54D7C5} = {9B9E3891-2366-4253-A952-D08BCEB71098}
+		{676D6BFD-029D-4E43-BFC7-3892265CE251} = {9B9E3891-2366-4253-A952-D08BCEB71098}
+		{F2CE566B-E7F6-447A-AB1A-3F574A6FE43A} = {C5A00AC3-B34C-4564-9BDD-2DA473EF4D8B}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {87366D66-1391-4D90-8999-95A620AD786A}

build/XUnit.props

@@ -1,14 +1,14 @@
 <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
-    <PackageReference Include="xunit" Version="2.3.0" />
-    <PackageReference Include="xunit.abstractions" Version="2.0.1" />
-    <PackageReference Include="xunit.assert" Version="2.3.0" />
-    <PackageReference Include="xunit.core" Version="2.3.0" />
-    <PackageReference Include="xunit.extensibility.core" Version="2.3.0" />
-    <PackageReference Include="xunit.extensibility.execution" Version="2.3.0" />
-    <PackageReference Include="xunit.runner.console" Version="2.3.0" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.3.0" />
-    <PackageReference Include="Xunit.SkippableFact" Version="1.3.6" />
+    <PackageReference Include="xunit" Version="2.4.1" />
+    <PackageReference Include="xunit.abstractions" Version="2.0.3" />
+    <PackageReference Include="xunit.assert" Version="2.4.1" />
+    <PackageReference Include="xunit.core" Version="2.4.1" />
+    <PackageReference Include="xunit.extensibility.core" Version="2.4.1" />
+    <PackageReference Include="xunit.extensibility.execution" Version="2.4.1" />
+    <PackageReference Include="xunit.runner.console" Version="2.4.1" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
+    <PackageReference Include="Xunit.SkippableFact" Version="1.4.13" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.7.0" />
   </ItemGroup>
   <PropertyGroup>

samples/IntegrationTestApp/App.axaml

@@ -0,0 +1,7 @@
+<Application xmlns="https://github.com/avaloniaui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             x:Class="IntegrationTestApp.App">
+    <Application.Styles>
+        <FluentTheme Mode="Light"/>
+    </Application.Styles>
+</Application>

samples/IntegrationTestApp/App.axaml.cs

@@ -0,0 +1,24 @@
+using Avalonia;
+using Avalonia.Controls.ApplicationLifetimes;
+using Avalonia.Markup.Xaml;
+
+namespace IntegrationTestApp
+{
+    public class App : Application
+    {
+        public override void Initialize()
+        {
+            AvaloniaXamlLoader.Load(this);
+        }
+
+        public override void OnFrameworkInitializationCompleted()
+        {
+            if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
+            {
+                desktop.MainWindow = new MainWindow();
+            }
+
+            base.OnFrameworkInitializationCompleted();
+        }
+    }
+}

samples/IntegrationTestApp/IntegrationTestApp.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+  <Import Project="..\..\build\BuildTargets.targets" />
+  <Import Project="..\..\build\SampleApp.props" />
+  <Import Project="..\..\build\ReferenceCoreLibraries.props" />
+  <ItemGroup>
+    <ProjectReference Include="..\..\src\Avalonia.Diagnostics\Avalonia.Diagnostics.csproj" />
+  </ItemGroup>
+</Project>

samples/IntegrationTestApp/MainWindow.axaml

@@ -0,0 +1,68 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="IntegrationTestApp.MainWindow"
+        Title="IntegrationTestApp">
+  <DockPanel>
+    <Menu DockPanel.Dock="Top">
+      <MenuItem Name="FileMenu" Header="_File">
+        <MenuItem Name="OpenMenu" Header="_Open..." InputGesture="Ctrl+O"/>
+      </MenuItem>
+    </Menu>
+    <TabControl TabStripPlacement="Left" Name="MainTabs">
+      <TabItem Header="Automation">
+        <StackPanel>
+          <TextBlock Name="TextBlockWithName">TextBlockWithName</TextBlock>
+          <TextBlock Name="NotTheAutomationId" AutomationProperties.AutomationId="TextBlockWithNameAndAutomationId">
+            TextBlockWithNameAndAutomationId
+          </TextBlock>
+          <TextBlock Name="TextBlockAsLabel">Label for TextBox</TextBlock>
+          <TextBox Name="LabeledByTextBox" AutomationProperties.LabeledBy="{Binding #TextBlockAsLabel}">
+            Foo
+          </TextBox>
+        </StackPanel>
+      </TabItem>
+      <TabItem Header="Button">
+        <StackPanel>
+          <Button Name="DisabledButton" IsEnabled="False">
+            Disabled Button
+          </Button>
+          <Button Name="BasicButton">
+            Basic Button
+          </Button>
+          <Button Name="ButtonWithTextBlock">
+            <TextBlock>Button with TextBlock</TextBlock>
+          </Button>
+          <Button Name="ButtonWithAcceleratorKey" HotKey="Ctrl+B">Button with Accelerator Key</Button>
+        </StackPanel>
+      </TabItem>
+
+      <TabItem Header="CheckBox">
+        <StackPanel>
+          <CheckBox Name="UncheckedCheckBox">Unchecked</CheckBox>
+          <CheckBox Name="CheckedCheckBox" IsChecked="True">Checked</CheckBox>
+          <CheckBox Name="ThreeStateCheckBox" IsThreeState="True" IsChecked="{x:Null}">ThreeState</CheckBox>
+        </StackPanel>
+      </TabItem>
+
+      <TabItem Header="ComboBox">
+        <StackPanel>
+          <ComboBox Name="UnselectedComboBox">
+            <ComboBoxItem>Foo</ComboBoxItem>
+            <ComboBoxItem>Bar</ComboBoxItem>
+          </ComboBox>
+          <ComboBox Name="SelectedIndex0ComboBox" SelectedIndex="0">
+            <ComboBoxItem>Foo</ComboBoxItem>
+            <ComboBoxItem>Bar</ComboBoxItem>
+          </ComboBox>
+          <ComboBox Name="SelectedIndex1ComboBox" SelectedIndex="1">
+            <ComboBoxItem>Foo</ComboBoxItem>
+            <ComboBoxItem>Bar</ComboBoxItem>
+          </ComboBox>
+        </StackPanel>
+      </TabItem>
+    </TabControl>
+  </DockPanel>
+</Window>

samples/IntegrationTestApp/MainWindow.axaml.cs

@@ -0,0 +1,20 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Markup.Xaml;
+
+namespace IntegrationTestApp
+{
+    public class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+            this.AttachDevTools();
+        }
+
+        private void InitializeComponent()
+        {
+            AvaloniaXamlLoader.Load(this);
+        }
+    }
+}

samples/IntegrationTestApp/Program.cs

@@ -0,0 +1,22 @@
+using System;
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Controls.ApplicationLifetimes;
+
+namespace IntegrationTestApp
+{
+    class Program
+    {
+        // Initialization code. Don't use any Avalonia, third-party APIs or any
+        // SynchronizationContext-reliant code before AppMain is called: things aren't initialized
+        // yet and stuff might break.
+        public static void Main(string[] args) => BuildAvaloniaApp()
+            .StartWithClassicDesktopLifetime(args);
+
+        // Avalonia configuration, don't remove; also used by visual designer.
+        public static AppBuilder BuildAvaloniaApp()
+            => AppBuilder.Configure<App>()
+                .UsePlatformDetect()
+                .LogToTrace();
+    }
+}

samples/IntegrationTestApp/nuget.config

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!-- 
+  To use the Avalonia CI feed to get unstable packages, move this file to the root of your solution.
+-->
+
+<configuration>
+  <packageSources>
+    <add key="AvaloniaCI" value="https://www.myget.org/F/avalonia-ci/api/v2" />
+  </packageSources>
+</configuration>

src/Avalonia.Controls/Automation/AutomationElementIdentifiers.cs

@@ -0,0 +1,28 @@
+using Avalonia.Automation.Peers;
+
+namespace Avalonia.Automation
+{
+    /// <summary>
+    /// Contains values used as automation property identifiers by UI Automation providers.
+    /// </summary>
+    public static class AutomationElementIdentifiers
+    {
+        /// <summary>
+        /// Identifies the bounding rectangle automation property. The bounding rectangle property
+        /// value is returned by the <see cref="AutomationPeer.GetBoundingRectangle"/> method.
+        /// </summary>
+        public static AutomationProperty BoundingRectangleProperty { get; } = new AutomationProperty();
+
+        /// <summary>
+        /// Identifies the class name automation property. The class name property value is returned
+        /// by the <see cref="AutomationPeer.GetClassName"/> method.
+        /// </summary>
+        public static AutomationProperty ClassNameProperty { get; } = new AutomationProperty();
+
+        /// <summary>
+        /// Identifies the name automation property. The class name property value is returned
+        /// by the <see cref="AutomationPeer.GetName"/> method.
+        /// </summary>
+        public static AutomationProperty NameProperty { get; } = new AutomationProperty();
+    }
+}

src/Avalonia.Controls/Automation/AutomationLiveSetting.cs

@@ -0,0 +1,28 @@
+namespace Avalonia.Automation
+{
+    /// <summary>
+    /// Describes the notification characteristics of a particular live region
+    /// </summary>
+    public enum AutomationLiveSetting
+    {
+        /// <summary>
+        /// The element does not send notifications if the content of the live region has changed.
+        /// </summary>
+        Off = 0,
+
+        /// <summary>
+        /// The element sends non-interruptive notifications if the content of the live region has
+        /// changed. With this setting, UI Automation clients and assistive technologies are expected 
+        /// to not interrupt the user to inform of changes to the live region.
+        /// </summary>
+        Polite = 1,
+
+        /// <summary>
+        /// The element sends interruptive notifications if the content of the live region has changed. 
+        /// With this setting, UI Automation clients and assistive technologies are expected to interrupt 
+        /// the user to inform of changes to the live region.
+        /// </summary>
+        Assertive = 2,
+    }
+}
+