1 files changed, 85 insertions, 0 deletions
diff --git a/Assets/Plugins/AdvancedInspector/Attributes/RuntimeResolve.cs b/Assets/Plugins/AdvancedInspector/Attributes/RuntimeResolve.cs
new file mode 100644
index 00000000..16a56fc4
--- /dev/null
+++ b/Assets/Plugins/AdvancedInspector/Attributes/RuntimeResolve.cs
@@ -0,0 +1,85 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Reflection;
+
+using UnityEngine;
+
+namespace AdvancedInspector
+{
+    /// <summary>
+    /// Forces a field to display a FieldEditor related to its current runtime type instead of the field type.
+    /// The Runtime version supply the type itself. Useful when the field value is null or for an unknown object picker.
+    /// </summary>
+    [AttributeUsage(AttributeTargets.Field | AttributeTargets.Property)]
+    public class RuntimeResolveAttribute : Attribute, IListAttribute, IRuntimeAttribute<Type>
+    {
+        public delegate Type RuntimeResolveDelegate();
+        public delegate Type RuntimeResolveStaticDelegate(RuntimeResolveAttribute runtimeResolve, object instance, object value);
+
+        #region IRuntime Implementation
+        private string methodName = "";
+
+        public string MethodName
+        {
+            get { return methodName; }
+        }
+
+        public Type Template
+        {
+            get { return typeof(RuntimeResolveDelegate); }
+        }
+
+        public Type TemplateStatic
+        {
+            get { return typeof(RuntimeResolveStaticDelegate); }
+        }
+
+        private List<Delegate> delegates = new List<Delegate>();
+
+        public List<Delegate> Delegates
+        {
+            get { return delegates; }
+            set { delegates = value; }
+        }
+
+        public Type Invoke(int index, object instance, object value)
+        {
+            if (delegates.Count == 0 || index >= delegates.Count)
+                return null;
+
+            try
+            {
+                if (delegates[index].Target == null)
+                {
+                    return delegates[index].DynamicInvoke(this, instance, value) as Type;
+                }
+                else
+                {
+                    return delegates[index].DynamicInvoke() as Type;
+                }
+            }
+            catch (Exception e)
+            {
+                if (e is TargetInvocationException)
+                    e = ((TargetInvocationException)e).InnerException;
+
+                Debug.LogError(string.Format("Invoking a method from a RuntimeResolve attribute failed. The exception was \"{0}\".", e.Message));
+                return null;
+            }
+        }
+        #endregion
+
+        public RuntimeResolveAttribute() { }
+
+        public RuntimeResolveAttribute(string methodName)
+        {
+            this.methodName = methodName;
+        }
+
+        public RuntimeResolveAttribute(Delegate method)
+        {
+            this.delegates.Add(method);
+        }
+    }
+}
+\ No newline at end of file