Make OsuButton abstract

osu.Game.Tests/Visual/UserInterface/TestSceneOsuButton.cs

@@ -1,47 +0,0 @@
-// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
-// See the LICENCE file in the repository root for full licence text.
-
-#nullable disable
-
-using NUnit.Framework;
-using osu.Framework.Graphics;
-using osu.Game.Graphics.UserInterface;
-using osuTK;
-
-namespace osu.Game.Tests.Visual.UserInterface
-{
-    public partial class TestSceneOsuButton : OsuTestScene
-    {
-        [Test]
-        public void TestToggleEnabled()
-        {
-            OsuButton button = null;
-
-            AddStep("add button", () => Child = button = new OsuButton
-            {
-                Anchor = Anchor.Centre,
-                Origin = Anchor.Centre,
-                Size = new Vector2(200),
-                Text = "Button"
-            });
-
-            AddToggleStep("toggle enabled", toggle =>
-            {
-                for (int i = 0; i < 6; i++)
-                    button.Action = toggle ? () => { } : null;
-            });
-        }
-
-        [Test]
-        public void TestInitiallyDisabled()
-        {
-            AddStep("add button", () => Child = new OsuButton
-            {
-                Anchor = Anchor.Centre,
-                Origin = Anchor.Centre,
-                Size = new Vector2(200),
-                Text = "Button"
-            });
-        }
-    }
-}

osu.Game/Graphics/UserInterface/OsuButton.cs

@@ -19,7 +19,7 @@ namespace osu.Game.Graphics.UserInterface
     /// <summary>
     /// A button with added default sound effects.
     /// </summary>
-    public partial class OsuButton : Button
+    public abstract partial class OsuButton : Button
     {
         public LocalisableString Text
         {
@@ -73,7 +73,7 @@ namespace osu.Game.Graphics.UserInterface
 
         private readonly Box flashLayer;
 
-        public OsuButton(HoverSampleSet? hoverSounds = HoverSampleSet.Button)
+        protected OsuButton(HoverSampleSet? hoverSounds = HoverSampleSet.Button)
         {
             Height = 40;