From 1f3cb4fa00dfc6e443d92a1658517653c039066b Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Mon, 7 Feb 2022 16:29:39 +0100
Subject: [PATCH] Invalidate parent measure when child visibility changes.

Fixes #7552 but breaks `ListBoxTests.LayoutManager_Should_Measure_Arrange_All`.
---
 src/Avalonia.Layout/Layoutable.cs | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/Avalonia.Layout/Layoutable.cs b/src/Avalonia.Layout/Layoutable.cs
index 09e0c4263a..516a70c3c9 100644
--- a/src/Avalonia.Layout/Layoutable.cs
+++ b/src/Avalonia.Layout/Layoutable.cs
@@ -141,7 +141,6 @@ namespace Avalonia.Layout
         static Layoutable()
         {
             AffectsMeasure<Layoutable>(
-                IsVisibleProperty,
                 WidthProperty,
                 HeightProperty,
                 MinWidthProperty,
@@ -781,6 +780,17 @@ namespace Avalonia.Layout
         {
         }
 
+        protected override void OnPropertyChanged<T>(AvaloniaPropertyChangedEventArgs<T> change)
+        {
+            base.OnPropertyChanged(change);
+
+            if (change.Property == IsVisibleProperty)
+            {
+                DesiredSize = default;
+                this.GetVisualParent<ILayoutable>()?.ChildDesiredSizeChanged(this);
+            }
+        }
+
         /// <inheritdoc/>
         protected sealed override void OnVisualParentChanged(IVisual? oldParent, IVisual? newParent)
         {