Fixed empty drawer created from inspector code

Author: alelievr

Assets/com.alelievr.NodeGraphProcessor/Editor/Resources/GraphProcessorStyles/BaseNodeView.uss

@@ -190,6 +190,7 @@ ParameterNodeView #controls EnumField > VisualElement > VisualElement {
 
 #input-container > .port-input-element.empty {
     width: 0;
+    padding: 0;
 }
 
 .collapsed #input-container {

Assets/com.alelievr.NodeGraphProcessor/Editor/Views/BaseNodeView.cs

@@ -570,7 +570,7 @@ protected virtual void DrawDefaultInspector(bool fromInspector = false)
 				//skip if the field is not serializable
 				if(!field.IsPublic && field.GetCustomAttribute(typeof(SerializeField)) == null)
 				{
-					AddEmptyField(field);
+					AddEmptyField(field, fromInspector);
 					continue;
 				}
 
@@ -581,22 +581,22 @@ protected virtual void DrawDefaultInspector(bool fromInspector = false)
 				bool showAsDrawer			   = !fromInspector && field.GetCustomAttribute(typeof(ShowAsDrawer)) != null;
 				if (field.GetCustomAttribute(typeof(SerializeField)) == null && hasInputOrOutputAttribute && !showAsDrawer)
 				{
-					AddEmptyField(field);
+					AddEmptyField(field, fromInspector);
 					continue;
 				}
 
 				//skip if marked with NonSerialized or HideInInspector
 				if (field.GetCustomAttribute(typeof(System.NonSerializedAttribute)) != null || field.GetCustomAttribute(typeof(HideInInspector)) != null)
 				{
-					AddEmptyField(field);
+					AddEmptyField(field, fromInspector);
 					continue;
 				}
 
 				// Hide the field if we want to display in in the inspector
 				var showInInspector = field.GetCustomAttribute<ShowInInspector>();
 				if (showInInspector != null && !showInInspector.showInNode && !fromInspector)
 				{
-					AddEmptyField(field);
+					AddEmptyField(field, fromInspector);
 					continue;
 				}
 
@@ -618,9 +618,9 @@ protected virtual void DrawDefaultInspector(bool fromInspector = false)
 			}
 		}
 
-		private void AddEmptyField(FieldInfo field)
+		private void AddEmptyField(FieldInfo field, bool fromInspector)
 		{
-			if(field.GetCustomAttribute(typeof(InputAttribute)) == null) return;
+			if(field.GetCustomAttribute(typeof(InputAttribute)) == null || fromInspector) return;
 
 			var box = new VisualElement {name = field.Name};
 			box.AddToClassList("port-input-element");