Address PR feeback

CommunityToolkit · Jul 22, 2021 · df40456 · df40456
1 parent 1298137
commit df40456
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diff --git a/Microsoft.Toolkit.Uwp.UI.Controls.Core/DropShadowPanel/DropShadowPanel.cs b/Microsoft.Toolkit.Uwp.UI.Controls.Core/DropShadowPanel/DropShadowPanel.cs
@@ -167,6 +167,8 @@ private void UpdateShadowMask()
             {
                 CompositionBrush mask = null;
 
+                // We check for IAlphaMaskProvider first, to ensure that we use the custom
+                // alpha mask even if Content happens to extend any of the other classes
                 if (Content is IAlphaMaskProvider maskedControl)
                 {
                     mask = maskedControl.GetAlphaMask();

diff --git a/...ore/DropShadowPanel/IAlphaMaskProvider.cs → ...lkit.Uwp.UI/Helpers/IAlphaMaskProvider.cs b/...ore/DropShadowPanel/IAlphaMaskProvider.cs → ...lkit.Uwp.UI/Helpers/IAlphaMaskProvider.cs