From d602cbc9858e1210367396ebee9934a41cb8b4cc Mon Sep 17 00:00:00 2001
From: Tyler Goodlet <jgbt@protonmail.com>
Date: Fri, 1 Jan 2021 12:59:31 -0500
Subject: [PATCH] Avoid active_plot race

---
 piker/ui/_graphics/_cursor.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/piker/ui/_graphics/_cursor.py b/piker/ui/_graphics/_cursor.py
index 83f0ee96..d5d4575a 100644
--- a/piker/ui/_graphics/_cursor.py
+++ b/piker/ui/_graphics/_cursor.py
@@ -31,6 +31,10 @@ from .._style import (
     _font,
 )
 from .._axes import YAxisLabel, XAxisLabel
+from ...log import get_logger
+
+
+log = get_logger(__name__)
 
 # XXX: these settings seem to result in really decent mouse scroll
 # latency (in terms of perceived lag in cross hair) so really be sure
@@ -295,6 +299,7 @@ class CrossHair(pg.GraphicsObject):
         return cursor
 
     def mouseAction(self, action, plot):  # noqa
+        log.debug(f"{(action, plot.name)}")
         if action == 'Enter':
             self.active_plot = plot
 
@@ -303,7 +308,6 @@ class CrossHair(pg.GraphicsObject):
             self.graphics[plot]['yl'].show()
 
         else:  # Leave
-            self.active_plot = None
 
             # hide horiz line and y-label
             self.graphics[plot]['hl'].hide()