Refactor the wayland hack to IWindow.PositionAccurate

Author: Susko3

osu.Framework/Input/UserInputManager.cs

@@ -10,7 +10,6 @@
 using osu.Framework.Input.StateChanges;
 using osu.Framework.Input.StateChanges.Events;
 using osu.Framework.Platform;
-using osu.Framework.Platform.SDL3;
 using osuTK;
 using osuTK.Input;
 using RectangleF = osu.Framework.Graphics.Primitives.RectangleF;
@@ -91,10 +90,7 @@ private bool mouseOutsideAllDisplays(Vector2 mousePosition)
             switch (Host.Window.WindowMode.Value)
             {
                 case WindowMode.Windowed:
-                    // The window location on wayland is always reported as the top-left corner of the current display,
-                    // which would erroniously prevent the mouse from exiting over the top and left edge.
-                    // In windowed, always consider the mouse as inside the displays to fix this.
-                    if (Host.Window is SDL3Window sdlWindow && sdlWindow.IsWayland)
+                    if (!Host.Window.PositionAccurate)
                         return false;
 
                     windowLocation = Host.Window.Position;

osu.Framework/Platform/IWindow.cs

@@ -272,6 +272,11 @@ public interface IWindow : IDisposable
         /// </summary>
         Point Position { get; }
 
+        /// <summary>
+        /// Whether the current <see cref="Position"/> is accurate.
+        /// </summary>
+        bool PositionAccurate { get; }
+
         /// <summary>
         /// The size of the window in scaled pixels (excluding any window decoration/border).
         /// </summary>

osu.Framework/Platform/SDL2/SDL2Window_Windowing.cs

@@ -165,6 +165,8 @@ public Point Position
             }
         }
 
+        public bool PositionAccurate => true;
+
         private bool resizable = true;
 
         /// <summary>

osu.Framework/Platform/SDL3/SDL3Window_Windowing.cs

@@ -169,6 +169,10 @@ public unsafe Point Position
             }
         }
 
+        // On Wayland, the window position is always reported as the top-left corner of the current display,
+        // making it inaccurate in windowed mode.
+        public bool PositionAccurate => !(IsWayland && WindowMode.Value == Configuration.WindowMode.Windowed);
+
         private bool resizable = true;
 
         /// <summary>