From 3173ddbb5fb9fa6ea6b6aa0fa00160a4876ef52b Mon Sep 17 00:00:00 2001
From: Paul Spencer <paul@pagameba.com>
Date: Wed, 16 Oct 2013 08:59:35 -0400
Subject: [PATCH] Fix a bug when frameState is null which occurs in offline
 mobile devices

---
 src/ol/map.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/ol/map.js b/src/ol/map.js
index 90a4bf488b..36526aba47 100644
--- a/src/ol/map.js
+++ b/src/ol/map.js
@@ -733,14 +733,15 @@ ol.Map.prototype.handlePostRender = function() {
   if (!tileQueue.isEmpty()) {
     var maxTotalLoading = 16;
     var maxNewLoads = maxTotalLoading;
+    var tileSourceCount = 0;
     if (!goog.isNull(frameState)) {
       var hints = frameState.viewHints;
       if (hints[ol.ViewHint.ANIMATING] || hints[ol.ViewHint.INTERACTING]) {
         maxTotalLoading = 8;
         maxNewLoads = 2;
       }
+      tileSourceCount = goog.object.getCount(frameState.wantedTiles);
     }
-    var tileSourceCount = goog.object.getCount(frameState.wantedTiles);
     maxTotalLoading *= tileSourceCount;
     maxNewLoads *= tileSourceCount;
     if (tileQueue.getTilesLoading() < maxTotalLoading) {