From 35f6d841d115915a684b1ecdc38c5df4556b367b Mon Sep 17 00:00:00 2001
From: Jonathan Wilkes <jon.w.wilkes@gmail.com>
Date: Wed, 21 Jun 2017 21:32:04 -0400
Subject: [PATCH] Don't scroll in the document window when the dropdown_menu is
 being scrolled

---
 pd/nw/pd_canvas.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pd/nw/pd_canvas.js b/pd/nw/pd_canvas.js
index 046617fff..6eeabd766 100644
--- a/pd/nw/pd_canvas.js
+++ b/pd/nw/pd_canvas.js
@@ -524,9 +524,10 @@ var canvas_events = (function() {
                         li = li.nextElementSibling ||
                              li.parentElement.firstElementChild;
                         dropdown_highlight_elem(li);
+                        break;
                     default:
                 }
-
+                evt.preventDefault();
             },
             dropdown_menu_keypress: function(evt) {
                 var li_nodes = document.querySelectorAll("#dropdown_list li"),
-- 
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