From 2cb7bc8356aa45050d42b7848adfeadf19209d22 Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Fri, 6 Nov 2015 19:58:00 +0100
Subject: [PATCH] Added attached/detached events to IVisual.

---
 src/Perspex.SceneGraph/IVisual.cs | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/Perspex.SceneGraph/IVisual.cs b/src/Perspex.SceneGraph/IVisual.cs
index 0491d63fad..3acb3ac27c 100644
--- a/src/Perspex.SceneGraph/IVisual.cs
+++ b/src/Perspex.SceneGraph/IVisual.cs
@@ -1,6 +1,7 @@
 // Copyright (c) The Perspex Project. All rights reserved.
 // Licensed under the MIT license. See licence.md file in the project root for full license information.
 
+using System;
 using Perspex.Collections;
 using Perspex.Media;
 using Perspex.VisualTree;
@@ -20,6 +21,16 @@ namespace Perspex
     /// </remarks>
     public interface IVisual
     {
+        /// <summary>
+        /// Raised when the control is attached to a rooted visual tree.
+        /// </summary>
+        event EventHandler<VisualTreeAttachmentEventArgs> AttachedToVisualTree;
+
+        /// <summary>
+        /// Raised when the control is detached from a rooted visual tree.
+        /// </summary>
+        event EventHandler<VisualTreeAttachmentEventArgs> DetachedFromVisualTree;
+
         /// <summary>
         /// Gets the bounds of the scene graph node relative to its parent.
         /// </summary>