Add dedicated automation peers for TreeView and TreeViewItem

src/Avalonia.Controls/Automation/Peers/TreeViewAutomationPeer.cs

@@ -0,0 +1,16 @@
+using Avalonia.Controls;
+
+namespace Avalonia.Automation.Peers;
+
+public class TreeViewAutomationPeer : ItemsControlAutomationPeer
+{
+ public TreeViewAutomationPeer(TreeView owner)
+ : base(owner)
+ {
+ }
+
+ protected override AutomationControlType GetAutomationControlTypeCore()
+ {
+ return AutomationControlType.Tree;
+ }
+}

src/Avalonia.Controls/Automation/Peers/TreeViewItemAutomationPeer.cs

@@ -0,0 +1,16 @@
+using Avalonia.Controls;
+
+namespace Avalonia.Automation.Peers;
+
+public class TreeViewItemAutomationPeer : ItemsControlAutomationPeer
+{
+ public TreeViewItemAutomationPeer(TreeViewItem owner)
+ : base(owner)
+ {
+ }
+
+ protected override AutomationControlType GetAutomationControlTypeCore()
+ {
+ return AutomationControlType.TreeItem;
+ }
+}

src/Avalonia.Controls/TreeView.cs

@@ -6,6 +6,7 @@
 using System.ComponentModel;
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
+using Avalonia.Automation.Peers;
 using Avalonia.Collections;
 using Avalonia.Controls.Generators;
 using Avalonia.Controls.Primitives;
@@ -298,6 +299,12 @@ static IEnumerable<Control> GetRealizedContainers(ItemsControl itemsControl)
  return TreeItemFromContainer(this, container);
  }
 
+ /// <inheritdoc />
+ protected override AutomationPeer OnCreateAutomationPeer()
+ {
+ return new TreeViewAutomationPeer(this);
+ }
+
  private protected override void OnItemsViewCollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
  {
  base.OnItemsViewCollectionChanged(sender, e);

src/Avalonia.Controls/TreeViewItem.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Collections.Specialized;
 using System.Linq;
+using Avalonia.Automation.Peers;
 using Avalonia.Controls.Metadata;
 using Avalonia.Controls.Mixins;
 using Avalonia.Controls.Primitives;
@@ -93,6 +94,12 @@ public int Level
 
  internal TreeView? TreeViewOwner => _treeView;
 
+ /// <inheritdoc />
+ protected override AutomationPeer OnCreateAutomationPeer()
+ {
+ return new TreeViewItemAutomationPeer(this);
+ }
+
  protected internal override Control CreateContainerForItemOverride(object? item, int index, object? recycleKey)
  {
  return EnsureTreeView().CreateContainerForItemOverride(item, index, recycleKey);