Add narration support to NavigationViewItem

src/Wpf.Ui/Controls/NavigationView/NavigationViewItem.cs

@@ -8,8 +8,10 @@
 using System.Collections;
 using System.Collections.ObjectModel;
 using System.Collections.Specialized;
+using System.Windows.Automation.Peers;
 using System.Windows.Controls;
 using System.Windows.Input;
+using Wpf.Ui.Controls.NavigationView;
 
 // ReSharper disable once CheckNamespace
 namespace Wpf.Ui.Controls;
@@ -438,6 +440,11 @@ protected override void OnMouseDown(MouseButtonEventArgs e)
         e.Handled = true;
     }
 
+    protected override AutomationPeer OnCreateAutomationPeer()
+    {
+        return new NavigationViewItemAutomationPeer(this);
+    }
+
     private void OnMenuItems_CollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
     {
         SetValue(HasMenuItemsPropertyKey, MenuItems.Count > 0);

src/Wpf.Ui/Controls/NavigationView/NavigationViewItemAutomationPeer.cs

@@ -0,0 +1,72 @@
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file, You can obtain one at https://opensource.org/licenses/MIT.
+// Copyright (C) Leszek Pomianowski and WPF UI Contributors.
+// All Rights Reserved.
+
+using System.Windows.Automation;
+using System.Windows.Automation.Peers;
+
+namespace Wpf.Ui.Controls;
+
+internal class NavigationViewItemAutomationPeer : FrameworkElementAutomationPeer
+{
+    private readonly NavigationViewItem _owner;
+
+    public NavigationViewItemAutomationPeer(NavigationViewItem owner)
+        : base(owner)
+    {
+        _owner = owner;
+    }
+
+    protected override string GetClassNameCore()
+    {
+        return "NavigationItem";
+    }
+
+    protected override AutomationControlType GetAutomationControlTypeCore()
+    {
+        return AutomationControlType.TabItem;
+    }
+
+    public override object GetPattern(PatternInterface patternInterface)
+    {
+        if (patternInterface == PatternInterface.ItemContainer)
+        {
+            return this;
+        }
+
+        return base.GetPattern(patternInterface);
+    }
+
+    protected override AutomationPeer GetLabeledByCore()
+    {
+        if (_owner.Content is UIElement element)
+        {
+            return CreatePeerForElement(element);
+        }
+
+        return base.GetLabeledByCore();
+    }
+
+    protected override string GetNameCore()
+    {
+        var result = base.GetNameCore() ?? string.Empty;
+
+        if (result == string.Empty)
+        {
+            result = AutomationProperties.GetName(_owner);
+        }
+
+        if (result == string.Empty && _owner.Content is DependencyObject d)
+        {
+            result = AutomationProperties.GetName(d);
+        }
+
+        if (result == string.Empty && _owner.Content is string s)
+        {
+            result = s;
+        }
+
+        return result;
+    }
+}