From 9d190c922adbd3ee804a8fa4d0f85be96f649cd1 2013-05-01 13:13:53
From: Jean-Philippe Lang <jp_lang@yahoo.fr>
Date: 2013-05-01 13:13:53
Subject: [PATCH] Pevents duplicate accesskeys (#12684).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11754 e93f8b46-1217-0410-a6f0-8f06a7374b81

---

diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 7c9aef0..148780d 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -471,7 +471,11 @@ module ApplicationHelper
   end
 
   def accesskey(s)
-    Redmine::AccessKeys.key_for s
+    @used_accesskeys ||= []
+    key = Redmine::AccessKeys.key_for(s)
+    return nil if @used_accesskeys.include?(key)
+    @used_accesskeys << key
+    key
   end
 
   # Formats text according to system settings.