From 591498a05641216d4e1e7584a49b3575030a5691 Mon Sep 17 00:00:00 2001
From: Brian Gough <bjg@network-theory.co.uk>
Date: Tue, 20 Jan 2015 16:20:12 +0000
Subject: [PATCH] fix dom position calculation in pdf viewer

---
 .../web/public/coffee/ide/pdfng/directives/pdfViewer.coffee   | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/services/web/public/coffee/ide/pdfng/directives/pdfViewer.coffee b/services/web/public/coffee/ide/pdfng/directives/pdfViewer.coffee
index 1fef6962af..b36d96c1bf 100644
--- a/services/web/public/coffee/ide/pdfng/directives/pdfViewer.coffee
+++ b/services/web/public/coffee/ide/pdfng/directives/pdfViewer.coffee
@@ -245,8 +245,8 @@ define [
 					scope.document.renderPages(pages)
 
 				getVisiblePages = () ->
-					top = element[0].offsetTop
-					bottom = top + element[0].clientHeight
+					top = element[0].scrollTop;
+					bottom = top + element[0].clientHeight;
 					isVisible = (pageElement) ->
 						pageTop = pageElement.offsetTop
 						pageBottom = pageTop + pageElement.clientHeight