From 99cca0573049a50f37cb9e0e7174693c3f16943a Mon Sep 17 00:00:00 2001
From: Giulio Gratta <giulio@giuliogratta.com>
Date: Thu, 1 Oct 2015 14:23:35 -0700
Subject: [PATCH] Disable submit button on save click

---
 common/lib/xmodule/xmodule/js/src/capa/display.coffee | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/common/lib/xmodule/xmodule/js/src/capa/display.coffee b/common/lib/xmodule/xmodule/js/src/capa/display.coffee
index b2130efff9..36fdad083d 100644
--- a/common/lib/xmodule/xmodule/js/src/capa/display.coffee
+++ b/common/lib/xmodule/xmodule/js/src/capa/display.coffee
@@ -412,11 +412,13 @@ class @Problem
       @save_internal()
 
   save_internal: =>
+    @enableCheckButton false
     Logger.log 'problem_save', @answers
     $.postWithPrefix "#{@url}/problem_save", @answers, (response) =>
       saveMessage = response.msg
       @gentle_alert saveMessage
       @updateProgress response
+      @enableCheckButton true
 
   refreshMath: (event, element) =>
     element = event.target unless element