From b0dc933d7829f9fc0ac8d3775e91f338a2f1bddd Mon Sep 17 00:00:00 2001
From: "Jessica B. Hamrick" <jhamrick@berkeley.edu>
Date: Wed, 28 Oct 2015 14:59:50 -0700
Subject: [PATCH] Ensure focus is kept when extending the marked region

---
 notebook/static/notebook/js/notebook.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/notebook/static/notebook/js/notebook.js b/notebook/static/notebook/js/notebook.js
index 27d3a49c1..91f4a7464 100644
--- a/notebook/static/notebook/js/notebook.js
+++ b/notebook/static/notebook/js/notebook.js
@@ -728,6 +728,8 @@ define(function (require) {
         var selectedIndex = Math.min(Math.max(this.get_selected_index() + offset, 0), this.ncells()-1);
         this.select(selectedIndex);
         this.get_selected_cell().marked = true;
+
+        this.ensure_focused();
     };
 
     // Cell selection.