Add support for setting disabled color on ColoBlock

Author: sinai-dev

src/Core/Runtime/Il2Cpp/Il2CppProvider.cs

@@ -164,8 +164,10 @@ public static int GetRootCount(int handle)
         internal static PropertyInfo _normalColorProp;
         internal static PropertyInfo _highlightColorProp;
         internal static PropertyInfo _pressedColorProp;
+        internal static PropertyInfo _disabledColorProp;
 
-        public override void SetColorBlock(Selectable selectable, Color? normal = null, Color? highlighted = null, Color? pressed = null)
+        public override void SetColorBlock(Selectable selectable, Color? normal = null, Color? highlighted = null, Color? pressed = null, 
+            Color? disabled = null)
         {
             var colors = selectable.colors;
 
@@ -183,6 +185,8 @@ public override void SetColorBlock(Selectable selectable, Color? normal = null,
                     _highlightColorProp = high;
                 if (ReflectionUtility.GetPropertyInfo(typeof(ColorBlock), "pressedColor") is PropertyInfo pres && pres.CanWrite)
                     _pressedColorProp = pres;
+                if (ReflectionUtility.GetPropertyInfo(typeof(ColorBlock), "disabledColor") is PropertyInfo disa && disa.CanWrite)
+                    _disabledColorProp = disa;
             }
 
             try
@@ -210,6 +214,14 @@ public override void SetColorBlock(Selectable selectable, Color? normal = null,
                     else if (ReflectionUtility.GetFieldInfo(typeof(ColorBlock), "m_PressedColor") is FieldInfo fi)
                         fi.SetValue(boxed, (Color)pressed);
                 }
+
+                if (disabled != null)
+                {
+                    if (_disabledColorProp != null)
+                        _disabledColorProp.SetValue(boxed, (Color)disabled);
+                    else if (ReflectionUtility.GetFieldInfo(typeof(ColorBlock), "m_DisabledColor") is FieldInfo fi)
+                        fi.SetValue(boxed, (Color)disabled);
+                }
             }
             catch (Exception ex)
             {

src/Core/Runtime/Mono/MonoProvider.cs

@@ -86,7 +86,8 @@ public override int GetRootCount(Scene scene)
             return scene.rootCount;
         }
 
-        public override void SetColorBlock(Selectable selectable, Color? normal = null, Color? highlighted = null, Color? pressed = null)
+        public override void SetColorBlock(Selectable selectable, Color? normal = null, Color? highlighted = null, Color? pressed = null,
+            Color? disabled = null)
         {
             var colors = selectable.colors;
 
@@ -99,6 +100,9 @@ public override void SetColorBlock(Selectable selectable, Color? normal = null,
             if (pressed != null)
                 colors.pressedColor = (Color)pressed;
 
+            if (disabled != null)
+                colors.disabledColor = (Color)disabled;
+
             SetColorBlock(selectable, colors);
         }
 

src/Core/Runtime/RuntimeProvider.cs

@@ -64,7 +64,8 @@ public static void Init() =>
 
         public abstract void SetColorBlock(Selectable selectable, ColorBlock colors);
 
-        public abstract void SetColorBlock(Selectable selectable, Color? normal = null, Color? highlighted = null, Color? pressed = null);
+        public abstract void SetColorBlock(Selectable selectable, Color? normal = null, Color? highlighted = null, Color? pressed = null,
+            Color? disabled = null);
 
         public virtual void FindSingleton(string[] s_instanceNames, Type type, BindingFlags flags, List<object> instances)
         {