From 0eed37f5951fb9569ce53b66407edf0c387e210b Mon Sep 17 00:00:00 2001
From: Sergio Pedri <sergio0694@live.com>
Date: Fri, 14 Jun 2019 16:28:31 +0200
Subject: [PATCH] Added IsEnabled property to the acrylic brushes

---
 .../Base/XamlCompositionEffectBrushBase.cs    | 37 ++++++++++++++++++-
 1 file changed, 36 insertions(+), 1 deletion(-)

diff --git a/UICompositionAnimations/Brushes/Base/XamlCompositionEffectBrushBase.cs b/UICompositionAnimations/Brushes/Base/XamlCompositionEffectBrushBase.cs
index a967254..7bc90b1 100644
--- a/UICompositionAnimations/Brushes/Base/XamlCompositionEffectBrushBase.cs
+++ b/UICompositionAnimations/Brushes/Base/XamlCompositionEffectBrushBase.cs
@@ -22,12 +22,28 @@ public abstract class XamlCompositionEffectBrushBase : XamlCompositionBrushBase
         [MustUseReturnValue, NotNull]
         protected abstract PipelineBuilder OnBrushRequested();
 
+        private bool _IsEnabled = true;
+
+        /// <summary>
+        /// Gest or sets whether or not the current brush is using the provided pipeline, or the fallback color
+        /// </summary>
+        public bool IsEnabled
+        {
+            get => _IsEnabled;
+            set => OnEnabledToggled(value);
+        }
+
         /// <inheritdoc/>
         protected override async void OnConnected()
         {
             using (await ConnectedMutex.LockAsync())
+            {
                 if (CompositionBrush == null)
-                    CompositionBrush = await OnBrushRequested().BuildAsync();
+                {
+                    if (_IsEnabled) CompositionBrush = await OnBrushRequested().BuildAsync();
+                    else CompositionBrush = await PipelineBuilder.FromColor(FallbackColor).BuildAsync();
+                }
+            }
             base.OnConnected();
         }
 
@@ -44,5 +60,24 @@ protected override async void OnDisconnected()
             }
             base.OnDisconnected();
         }
+
+        /// <summary>
+        /// Updates the <see cref="XamlCompositionBrushBase.CompositionBrush"/> property depending on the input value
+        /// </summary>
+        /// <param name="value">The new value being set to the <see cref="IsEnabled"/> property</param>
+        protected async void OnEnabledToggled(bool value)
+        {
+            using (await ConnectedMutex.LockAsync())
+            {
+                if (_IsEnabled == value) return;
+                _IsEnabled = value;
+
+                if (CompositionBrush != null)
+                {
+                    if (_IsEnabled) CompositionBrush = await OnBrushRequested().BuildAsync();
+                    else CompositionBrush = await PipelineBuilder.FromColor(FallbackColor).BuildAsync();
+                }
+            }
+        }
     }
 }