internal static bool Show(Vector2 position, IBrowsePopupProvider provider)
        {
            // If the window is already open, close it instead.
            UnityEngine.Object[] wins = Resources.FindObjectsOfTypeAll(typeof(BrowsePopup));
            if (wins.Length > 0)
            {
                try
                {
                    ((EditorWindow)wins[0]).Close();
                    return(false);
                }
                catch (Exception)
                {
                    s_FilterWindow = null;
                }
            }

            // We could not use realtimeSinceStartUp since it is set to 0 when entering/exitting playmode, we assume an increasing time when comparing time.
            long nowMilliSeconds = System.DateTime.Now.Ticks / System.TimeSpan.TicksPerMillisecond;
            bool justClosed      = nowMilliSeconds < s_LastClosedTime + 50;

            if (!justClosed)
            {
                Event.current.Use();
                if (s_FilterWindow == null)
                {
                    s_FilterWindow = ScriptableObject.CreateInstance <BrowsePopup>();
                }
                s_FilterWindow.Init(position, provider);
                return(true);
            }
            return(false);
        }
        void Init(Vector2 position, IBrowsePopupProvider provider)
        {
            m_Provider = provider;
            // Has to be done before calling Show / ShowWithMode
            Vector2 pos        = GUIUtility.GUIToScreenPoint(position);
            Rect    buttonRect = new Rect(pos.x - DefaultWidth + 16, pos.y + 16, DefaultWidth, 1);

            CreateComponentTree();

            ShowAsDropDown(buttonRect, new Vector2(buttonRect.width, kWindowHeight));

            Focus();

            wantsMouseMove = true;
        }