Property attribute control

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Data/Nodes/PropertyNode.cs

 using System;
 using System.Linq;
+using UnityEditor.MaterialGraph.Drawing.Controls;
 using UnityEngine.Graphing;
 
 namespace UnityEngine.MaterialGraph
             return edges.Count == 0;
         }
 
-
+        [PropertyControl]
         public Guid propertyGuid
         {
             get { return m_PropertyGuid; }

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Presenters/MaterialGraphPresenter.cs

  //           typeMapper[typeof(TextureLODNode)] = typeof(TextureLODNodePresenter);
    //         typeMapper[typeof(CubemapNode)] = typeof(CubeNodePresenter);
      //       typeMapper[typeof(ToggleNode)] = typeof(ToggleNodePresenter);
-            typeMapper[typeof(PropertyNode)] = typeof(PropertyNodePresenter);
-
             /* typeMapper[typeof(ScaleOffsetNode)] = typeof(AnyNodePresenter);         // anything derived from AnyNode should use the AnyNodePresenter
              typeMapper[typeof(RadialShearNode)] = typeof(AnyNodePresenter);         // anything derived from AnyNode should use the AnyNodePresenter
              typeMapper[typeof(SphereWarpNode)] = typeof(AnyNodePresenter);          // anything derived from AnyNode should use the AnyNodePresenter

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Controls/PropertyControl.cs

+using System;
+using System.Linq;
+using System.Reflection;
+using UnityEngine.Experimental.UIElements;
+using UnityEngine.MaterialGraph;
+
+namespace UnityEditor.MaterialGraph.Drawing.Controls
+{
+    [AttributeUsage(AttributeTargets.Property)]
+    public class PropertyControlAttribute : Attribute, IControlAttribute
+    {
+        public VisualElement InstantiateControl(AbstractMaterialNode node, PropertyInfo propertyInfo)
+        {
+            return new PropertyControlView(node);
+        }
+    }
+
+    public class PropertyControlView : VisualElement
+    {
+        PropertyNode m_Node;
+
+        public PropertyControlView(AbstractMaterialNode node)
+        {
+            m_Node = (PropertyNode) node;
+
+            Add(new IMGUIContainer(OnGUIHandler));
+        }
+
+        void OnGUIHandler()
+        {
+            var graph = m_Node.owner as AbstractMaterialGraph;
+            var currentGUID = m_Node.propertyGuid;
+            var properties = graph.properties.ToList();
+            var propertiesGUID = properties.Select(x => x.guid).ToList();
+            var currentSelectedIndex = propertiesGUID.IndexOf(currentGUID);
+            using (var changeCheckScope = new EditorGUI.ChangeCheckScope())
+            {
+                var value = EditorGUILayout.Popup("Property", currentSelectedIndex, properties.Select(x => x.displayName).ToArray());
+                if (changeCheckScope.changed)
+                    m_Node.propertyGuid = propertiesGUID[value];
+            }
+        }
+    }
+}

MaterialGraphProject/Assets/UnityShaderEditor/Editor/Drawing/Controls/PropertyControl.cs.meta

+fileFormatVersion: 2
+guid: bb1167be0ec94c0a849394d34df45a98
+timeCreated: 1507819549