[NUI][ATSPI] Accessibility support for AppBar

SetAccessibilityConstructor() is added in OnIintialize().
AccessibilityHighlightable is set to be true in Initialize().

diff --git a/src/Tizen.NUI.Components/Controls/Navigation/AppBar.cs b/src/Tizen.NUI.Components/Controls/Navigation/AppBar.cs
index c182e77..14936c2 100755 (executable)
--- a/src/Tizen.NUI.Components/Controls/Navigation/AppBar.cs
+++ b/src/Tizen.NUI.Components/Controls/Navigation/AppBar.cs
@@ -465,6 +465,15 @@ namespace Tizen.NUI.Components
             }
         }
 
+        /// <inheritdoc/>
+        [EditorBrowsable(EditorBrowsableState.Never)]
+        public override void OnInitialize()
+        {
+            base.OnInitialize();
+
+            SetAccessibilityConstructor(Role.TitleBar);
+        }
+
         /// <summary>
         /// Applies style to AppBar.
         /// </summary>