feat: Implement ScrollViewerAutomationPeer

src/Uno.UI/Generated/3.0.0.0/Microsoft.UI.Xaml.Automation.Peers/ScrollBarAutomationPeer.cs

@@ -3,12 +3,12 @@
 #pragma warning disable 114 // new keyword hiding
 namespace Microsoft.UI.Xaml.Automation.Peers
 {
-#if __ANDROID__ || __IOS__ || IS_UNIT_TESTS || __WASM__ || __SKIA__ || __NETSTD_REFERENCE__ || __MACOS__
+#if false
 	[global::Uno.NotImplemented]
 #endif
 	public partial class ScrollBarAutomationPeer : global::Microsoft.UI.Xaml.Automation.Peers.RangeBaseAutomationPeer
 	{
-#if __ANDROID__ || __IOS__ || IS_UNIT_TESTS || __WASM__ || __SKIA__ || __NETSTD_REFERENCE__ || __MACOS__
+#if false
 		[global::Uno.NotImplemented("__ANDROID__", "__IOS__", "IS_UNIT_TESTS", "__WASM__", "__SKIA__", "__NETSTD_REFERENCE__", "__MACOS__")]
 		public ScrollBarAutomationPeer(global::Microsoft.UI.Xaml.Controls.Primitives.ScrollBar owner) : base(owner)
 		{

src/Uno.UI/UI/Xaml/Automation/Peers/ScrollBarAutomationPeer.cs

@@ -0,0 +1,86 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License. See LICENSE in the project root for license information.
+// MUX Reference ScrollBarAutomationPeer_Partial.cpp, tag winui3/release/1.4.2
+using DirectUI;
+using Windows.Foundation;
+
+namespace Microsoft.UI.Xaml.Automation.Peers;
+
+/// <summary>
+/// Exposes ScrollBar types to UI Automation.
+/// </summary>
+public partial class ScrollBarAutomationPeer : RangeBaseAutomationPeer
+{
+	private const string UIA_SCROLLBAR_HORIZONTAL = nameof(UIA_SCROLLBAR_HORIZONTAL);
+	private const string UIA_SCROLLBAR_VERTICAL = nameof(UIA_SCROLLBAR_VERTICAL);
+
+	public ScrollBarAutomationPeer(Controls.Primitives.ScrollBar owner) : base(owner)
+	{
+	}
+
+	protected override string GetClassNameCore() => nameof(Controls.Primitives.ScrollBar);
+
+	protected override AutomationControlType GetAutomationControlTypeCore()
+		=> AutomationControlType.ScrollBar;
+
+	protected override Point GetClickablePointCore()
+		=> new(DoubleUtil.NaN, DoubleUtil.NaN);
+
+	protected override AutomationOrientation GetOrientationCore()
+	{
+		var owner = Owner as Controls.Primitives.ScrollBar;
+
+		if (owner.Orientation == Controls.Orientation.Horizontal)
+		{
+			return AutomationOrientation.Horizontal;
+		}
+		else
+		{
+			return AutomationOrientation.Vertical;
+		}
+	}
+
+	protected override bool IsContentElementCore() => false;
+
+	private protected override bool ChildIsAcceptable(UIElement element)
+	{
+		var childIsAcceptable = base.ChildIsAcceptable(element);
+
+		if (childIsAcceptable)
+		{
+			var owner = Owner as Controls.Primitives.ScrollBar;
+
+			//UNO TODO: ElementHorizontalTemplate and ElementVerticalTemplate on ScrollBar
+			var elementHorizontalTemplate = owner.ElementHorizontalTemplate;
+			var elementVerticalTemplate = owner.ElementVerticalTemplate;
+
+			if (element == elementHorizontalTemplate || element == elementVerticalTemplate)
+			{
+				return element.Visibility == Visibility.Visible;
+			}
+		}
+
+		return childIsAcceptable;
+	}
+
+	protected override string GetNameCore()
+	{
+		var returnValue = base.GetNameCore();
+
+		if (string.IsNullOrEmpty(returnValue))
+		{
+			var owner = Owner as Controls.Primitives.ScrollBar;
+
+			if (owner.Orientation == Controls.Orientation.Horizontal)
+			{
+				return DXamlCore.Current.GetLocalizedResourceString(UIA_SCROLLBAR_HORIZONTAL);
+			}
+			else
+			{
+				return DXamlCore.Current.GetLocalizedResourceString(UIA_SCROLLBAR_VERTICAL);
+			}
+		}
+
+		return returnValue;
+	}
+}