From 5dfa076c1071f09bf4a9d8f84b1da0b0a91cf4ed Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Fri, 12 Jun 2015 13:58:17 +0200
Subject: [PATCH] Implement PerspexReadOnlyListView.PropertyChanged.

---
 .../Collections/PerspexReadOnlyListView.cs     | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/Perspex.Base/Collections/PerspexReadOnlyListView.cs b/Perspex.Base/Collections/PerspexReadOnlyListView.cs
index b12e52efbb..be0e31beac 100644
--- a/Perspex.Base/Collections/PerspexReadOnlyListView.cs
+++ b/Perspex.Base/Collections/PerspexReadOnlyListView.cs
@@ -29,6 +29,7 @@ namespace Perspex.Collections
             if (source != null)
             {
                 this.source.CollectionChanged += this.SourceCollectionChanged;
+                this.source.PropertyChanged += this.SourcePropertyChanged;
             }
         }
 
@@ -53,6 +54,7 @@ namespace Perspex.Collections
                 if (this.source != null)
                 {
                     this.source.CollectionChanged -= this.SourceCollectionChanged;
+                    this.source.PropertyChanged -= this.SourcePropertyChanged;
 
                     if (this.CollectionChanged != null)
                     {
@@ -69,6 +71,7 @@ namespace Perspex.Collections
                 if (this.source != null)
                 {
                     this.source.CollectionChanged += this.SourceCollectionChanged;
+                    this.source.PropertyChanged += this.SourcePropertyChanged;
 
                     if (this.CollectionChanged != null)
                     {
@@ -90,6 +93,7 @@ namespace Perspex.Collections
         public void Dispose()
         {
             this.source.CollectionChanged -= this.SourceCollectionChanged;
+            this.source.PropertyChanged -= this.SourcePropertyChanged;
         }
 
         public IEnumerator<T> GetEnumerator()
@@ -139,6 +143,11 @@ namespace Perspex.Collections
                 this.CollectionChanged(this, ev);
             }
         }
+
+        private void SourcePropertyChanged(object sender, PropertyChangedEventArgs e)
+        {
+            this.PropertyChanged?.Invoke(this, e);
+        }
     }
 
     public class PerspexReadOnlyListView<TIn, TOut> : IPerspexReadOnlyList<TOut>, IDisposable
@@ -160,6 +169,7 @@ namespace Perspex.Collections
             if (source != null)
             {
                 this.source.CollectionChanged += this.SourceCollectionChanged;
+                this.source.PropertyChanged += this.SourcePropertyChanged;
             }
         }
 
@@ -184,6 +194,7 @@ namespace Perspex.Collections
                 if (this.source != null)
                 {
                     this.source.CollectionChanged -= this.SourceCollectionChanged;
+                    this.source.PropertyChanged -= this.SourcePropertyChanged;
 
                     if (this.CollectionChanged != null)
                     {
@@ -200,6 +211,7 @@ namespace Perspex.Collections
                 if (this.source != null)
                 {
                     this.source.CollectionChanged += this.SourceCollectionChanged;
+                    this.source.PropertyChanged += this.SourcePropertyChanged;
 
                     if (this.CollectionChanged != null)
                     {
@@ -228,6 +240,7 @@ namespace Perspex.Collections
             if (this.source != null)
             {
                 this.source.CollectionChanged -= this.SourceCollectionChanged;
+                this.source.PropertyChanged -= this.SourcePropertyChanged;
             }
         }
 
@@ -288,5 +301,10 @@ namespace Perspex.Collections
                 this.CollectionChanged(this, ev);
             }
         }
+
+        private void SourcePropertyChanged(object sender, PropertyChangedEventArgs e)
+        {
+            this.PropertyChanged?.Invoke(this, e);
+        }
     }
 }