Remove MouseDevice from the TopLevel

src/Avalonia.Base/Input/IInputRoot.cs

@@ -27,10 +27,5 @@ namespace Avalonia.Input
         /// Gets or sets a value indicating whether access keys are shown in the window.
         /// </summary>
         bool ShowAccessKeys { get; set; }
-
-        /// <summary>
-        /// Gets associated mouse device
-        /// </summary>
-        IMouseDevice? MouseDevice { get; }
     }
 }

src/Avalonia.Controls/Platform/ITopLevelImpl.cs

@@ -6,7 +6,6 @@ using Avalonia.Input.Raw;
 using Avalonia.Layout;
 using Avalonia.Metadata;
 using Avalonia.Rendering;
-using JetBrains.Annotations;
 
 namespace Avalonia.Platform
 {
@@ -151,13 +150,7 @@ namespace Avalonia.Platform
         /// Gets or sets a method called when the input focus is lost.
         /// </summary>
         Action? LostFocus { get; set; }
-
-        /// <summary>
-        /// Gets a mouse device associated with toplevel
-        /// </summary>
-        [CanBeNull]
-        IMouseDevice MouseDevice { get; }
-
+        
         IPopupImpl? CreatePopup();
 
         /// <summary>

src/Avalonia.Controls/TopLevel.cs

@@ -304,9 +304,6 @@ namespace Avalonia.Controls
             set { SetValue(PointerOverElementProperty, value); }
         }
 
-        /// <inheritdoc/>
-        IMouseDevice? IInputRoot.MouseDevice => PlatformImpl?.MouseDevice;
-
         /// <summary>
         /// Gets or sets a value indicating whether access keys are shown in the window.
         /// </summary>

tests/Avalonia.UnitTests/MockWindowingPlatform.cs

@@ -34,7 +34,6 @@ namespace Avalonia.UnitTests
             windowImpl.Setup(x => x.RenderScaling).Returns(1);
             windowImpl.Setup(x => x.Screen).Returns(CreateScreenMock().Object);
             windowImpl.Setup(x => x.Position).Returns(() => position);
-            SetupToplevel(windowImpl);
 
             windowImpl.Setup(x => x.CreatePopup()).Returns(() =>
             {
@@ -100,8 +99,6 @@ namespace Avalonia.UnitTests
             {
                 popupImpl.Object.Closed?.Invoke();
             });
-
-            SetupToplevel(popupImpl);
             
             return popupImpl;
         }
@@ -144,10 +141,5 @@ namespace Avalonia.UnitTests
         {
             return null;
         }
-
-        private static void SetupToplevel<T>(Mock<T> mock) where T : class, ITopLevelImpl
-        {
-            mock.SetupGet(x => x.MouseDevice).Returns(new MouseDevice());
-        }
     }
 }

tests/Avalonia.UnitTests/TestRoot.cs

@@ -58,9 +58,7 @@ namespace Avalonia.UnitTests
         public IKeyboardNavigationHandler KeyboardNavigationHandler => null;
 
         public IInputElement PointerOverElement { get; set; }
-
-        public IMouseDevice MouseDevice { get; set; }
-
+        
         public bool ShowAccessKeys { get; set; }
 
         public IStyleHost StylingParent { get; set; }