Started refactor and work on textfield for typing command name in block editor

Assets/Fungus/Scripts/Editor/BlockEditor.cs

@@ -38,6 +38,7 @@ namespace Fungus.EditorUtils
         protected Texture2D addIcon;
         protected Texture2D duplicateIcon;
         protected Texture2D deleteIcon;
+        protected string commandTextFieldContents = string.Empty;
 
         static List<System.Type> commandTypes;
         static List<System.Type> eventHandlerTypes;
@@ -308,6 +309,8 @@ namespace Fungus.EditorUtils
 
             GUILayout.FlexibleSpace();
 
+            commandTextFieldContents = GUILayout.TextField(commandTextFieldContents, GUILayout.MinWidth(20), GUILayout.MaxWidth(200));
+
             // Add Button
             if (GUILayout.Button(addIcon))
             {
@@ -747,10 +750,18 @@ namespace Fungus.EditorUtils
             return filteredAttributes.Values.ToList<KeyValuePair<System.Type, CommandInfoAttribute>>();
         }
 
+        //Used by GenericMenu Delegate
         protected static void AddCommandCallback(object obj)
         {
             AddCommandOperation commandOperation = obj as AddCommandOperation;
+            if (commandOperation != null)
+            {
+                AddCommandCallback(commandOperation);
+            }
+        }
 
+        protected static void AddCommandCallback(AddCommandOperation commandOperation)
+        {
             var block = commandOperation.block;
             if (block == null)
             {