Make settings more modular

osu.Desktop.Tests/Visual/TestCaseKeyConfiguration.cs

@@ -0,0 +1,44 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using osu.Game.Overlays;
+using osu.Game.Overlays.Settings;
+using System.Collections.Generic;
+using osu.Game.Graphics;
+
+namespace osu.Desktop.Tests.Visual
+{
+    public class TestCaseKeyConfiguration : OsuTestCase
+    {
+        private readonly KeyConfiguration configuration;
+
+        public override string Description => @"Key configuration";
+
+        public TestCaseKeyConfiguration()
+        {
+            Child = configuration = new KeyConfiguration();
+        }
+
+        protected override void LoadComplete()
+        {
+            base.LoadComplete();
+
+            configuration.Show();
+        }
+    }
+
+    public class KeyConfiguration : SettingsOverlay
+    {
+        protected override IEnumerable<SettingsSection> CreateSections() => new[]
+        {
+            new BindingsSection(),
+            new BindingsSection()
+        };
+    }
+
+    public class BindingsSection : SettingsSection
+    {
+        public override FontAwesome Icon => FontAwesome.fa_osu_mod_nofail;
+        public override string Header => "Header";
+    }
+}