misc: Canary-specific naming & other small changes I had that I need to push.

src/Ryujinx/Common/Markup/BasicMarkupExtension.cs

@@ -2,19 +2,38 @@
 using Avalonia.Markup.Xaml;
 using Avalonia.Markup.Xaml.MarkupExtensions;
 using Avalonia.Markup.Xaml.MarkupExtensions.CompiledBindings;
+using Gommon;
 using System;
+// ReSharper disable VirtualMemberNeverOverridden.Global
+// ReSharper disable MemberCanBeProtected.Global
+// ReSharper disable MemberCanBePrivate.Global
+
+#nullable enable
 
 namespace Ryujinx.Ava.Common.Markup
 {
-    internal abstract class BasicMarkupExtension : MarkupExtension 
+    internal abstract class BasicMarkupExtension<T> : MarkupExtension
     {
-        protected abstract ClrPropertyInfo PropertyInfo { get; }
-        
-        public override object ProvideValue(IServiceProvider serviceProvider) =>
-            new CompiledBindingExtension(
-                new CompiledBindingPathBuilder()
-                    .Property(PropertyInfo, PropertyInfoAccessorFactory.CreateInpcPropertyAccessor)
-                    .Build()
-            ).ProvideValue(serviceProvider);
+        public virtual string Name => "Item";
+        public virtual Action<object, T?>? Setter => null;
+
+        protected abstract T? GetValue();
+
+        protected virtual void ConfigureBindingExtension(CompiledBindingExtension _) { }
+
+        private ClrPropertyInfo PropertyInfo =>
+            new(Name,
+                _ => GetValue(),
+                Setter as Action<object, object?>,
+                typeof(T));
+
+        public override object ProvideValue(IServiceProvider serviceProvider) 
+            => new CompiledBindingExtension(
+                    new CompiledBindingPathBuilder()
+                        .Property(PropertyInfo, PropertyInfoAccessorFactory.CreateInpcPropertyAccessor)
+                        .Build()
+                    )
+                .Apply(ConfigureBindingExtension)
+                .ProvideValue(serviceProvider);
     }
 }