updates to SceneView Tests.

Assets/UIWidgets/Tests/Menu.cs

             EditorWindow.GetWindow(typeof(Widgets));
         }
         
-        [MenuItem("UIWidgetsTests/ScrollViews")]
-        public static void renderScrollViews() {
-            EditorWindow.GetWindow(typeof(ScrollViews));
-        }
-        
         [MenuItem("UIWidgetsTests/Show SceneViewTests")]
         public static void showSceneView() {
             SceneViewTests.show();

Assets/UIWidgets/Tests/SceneViewTests.cs

 using System;
 using System.Linq;
+using System.Reflection;
 using UIWidgets.editor;
 using UIWidgets.painting;
 using UIWidgets.rendering;
 namespace UIWidgets.Tests {
     public class SceneViewTests {
         public static void show() {
+            onPreSceneGUIDelegate += OnPreSceneGUI;
             SceneView.onSceneGUIDelegate += OnSceneGUI;
             EditorApplication.update += Update;
             
         }
 
         public static void hide() {
+            onPreSceneGUIDelegate -= OnPreSceneGUI;
+        public static SceneView.OnSceneFunc onPreSceneGUIDelegate {
+            get {
+                var field = typeof(SceneView).GetField("onPreSceneGUIDelegate",
+                    BindingFlags.Static | BindingFlags.NonPublic);
+
+                return (SceneView.OnSceneFunc) field.GetValue(null);
+            }
+
+            set {
+                var field = typeof(SceneView).GetField("onPreSceneGUIDelegate",
+                    BindingFlags.Static | BindingFlags.NonPublic);
+
+                field.SetValue(null, value);
+            }
+        }
+
         private static Func<Widget>[] _options;
         
         private static string[] _optionStrings;
         [NonSerialized] private static bool hasInvoked = false;
 
+        private static EventType _lastEventType; 
+        
+        private static void OnPreSceneGUI(SceneView sceneView) {
+            _lastEventType = Event.current.rawType;
+        }
+        
-            HandleUtility.AddDefaultControl(GUIUtility.GetControlID(FocusType.Passive));
+            //HandleUtility.AddDefaultControl(GUIUtility.GetControlID(FocusType.Passive));
             Handles.BeginGUI();
             
             if (windowAdapter == null) {
                 windowAdapter.attachRootWidget(widget);
             }
 
-            windowAdapter.OnGUI();
+            if (Event.current.type == EventType.Used) {
+                Event.current.type = SceneViewTests._lastEventType;
+                windowAdapter.OnGUI();
+                Event.current.type = EventType.Used;
+            } else {
+                windowAdapter.OnGUI();
+            }
 
             Handles.EndGUI();
         }

Assets/UIWidgets/Tests/Widgets.cs

         Widget _buildHeader(BuildContext context) {
             return new Container(
                 padding: EdgeInsets.only(left: 16.0, right: 8.0),
-                color: CLColors.blue,
+              //  color: CLColors.blue,
                 height: headerHeight - _offsetY,
                 child: new Row(
                     children: new List<Widget> {
                 },
                 child: new Flexible(
                     child: new Container(
-                        color: CLColors.green,
+                      //  color: CLColors.green,
                         child: ListView.builder(
                             itemCount: 20,
                             itemExtent: 100,
 
         public override Widget build(BuildContext context) {
             var container = new Container(
-                color: CLColors.background1,
+              //  color: CLColors.background1,
-                    color: CLColors.background1,
+                  //  color: CLColors.background1,
                     child: new Column(
                         children: new List<Widget> {
                             this._buildHeader(context),

Assets/UIWidgets/Tests/ScrollViews.cs

-using System;
-using System.Linq;
-using UIWidgets.editor;
-using UIWidgets.painting;
-using UIWidgets.widgets;
-using UnityEditor;
-using UnityEngine;
-using Color = UIWidgets.ui.Color;
-
-namespace UIWidgets.Tests {
-    public class ScrollViews : EditorWindow {
-        private readonly Func<Widget>[] _options;
-
-        private readonly string[] _optionStrings;
-
-        private int _selected;
-
-        ScrollViews() {
-            this._options = new Func<Widget>[] {
-                this.none,
-                this.listView,
-            };
-            this._optionStrings = this._options.Select(x => x.Method.Name).ToArray();
-            this._selected = 0;
-
-            this.titleContent = new GUIContent("ScrollViews");
-        }
-
-        private WindowAdapter windowAdapter;
-
-        [NonSerialized] private bool hasInvoked = false;
-
-        void OnGUI() {
-            var selected = EditorGUILayout.Popup("test case", this._selected, this._optionStrings);
-            if (selected != this._selected || !this.hasInvoked) {
-                this._selected = selected;
-                this.hasInvoked = true;
-
-                var widget = this._options[this._selected]();
-                if (this.windowAdapter != null) {
-                    this.windowAdapter.attachRootWidget(widget);
-                }
-            }
-
-            if (this.windowAdapter != null) {
-                this.windowAdapter.OnGUI();
-            }
-        }
-
-        void Update() {
-            if (this.windowAdapter != null) {
-                this.windowAdapter.Update();
-            }
-        }
-
-        private void OnEnable() {
-            this.windowAdapter = new WindowAdapter(this);
-        }
-
-        void OnDestroy() {
-            this.windowAdapter = null;
-        }
-
-        Widget none() {
-            return null;
-        }
-
-        Widget listView() {
-            return ListView.builder(
-                itemExtent: 20.0,
-                itemBuilder: (context, index) => {
-                    return new Container(
-                        color: Color.fromARGB(255, (index * 10) % 256, (index * 10) % 256, (index * 10) % 256)
-                    );
-                }
-            );
-        }
-    }
-}

Assets/UIWidgets/Tests/ScrollViews.cs.meta

-fileFormatVersion: 2
-guid: b14d32b9a23040969ca3316c86d899c3
-timeCreated: 1537352615