From a2e6408be1d6dfe74f633c44e4eebb508c439ce5 Mon Sep 17 00:00:00 2001
From: Axel Pirek <pirek.axel@gmail.com>
Date: Wed, 18 Jan 2017 13:27:11 +0100
Subject: [PATCH] Only render tooltip if position is in viewport

---
 public/app/plugins/panel/graph/graph_tooltip.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/public/app/plugins/panel/graph/graph_tooltip.js b/public/app/plugins/panel/graph/graph_tooltip.js
index 318b296bc02..ebf8c41c4bd 100644
--- a/public/app/plugins/panel/graph/graph_tooltip.js
+++ b/public/app/plugins/panel/graph/graph_tooltip.js
@@ -177,6 +177,11 @@ function ($, core) {
         }
         pos.pageX = elem.offset().left + pointOffset.left;
         pos.pageY = elem.offset().top + elem.height() * pos.panelRelY;
+        var isVisible = pos.pageY >= $(window).scrollTop() && pos.pageY <= $(window).innerHeight() + $(window).scrollTop();
+        if (!isVisible) {
+          self.clear(plot);
+          return;
+        }
         plot.setCrosshair(pos);
         allSeriesMode = true;