From 05da0ceaab92bc3d477c8cecbcf6161ecd38890a Mon Sep 17 00:00:00 2001
From: Marc Jansen <jansen@terrestris.de>
Date: Wed, 23 Sep 2015 13:18:03 +0200
Subject: [PATCH] Use ol.isDef when testing options.duration

---
 src/ol/animation.js | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/ol/animation.js b/src/ol/animation.js
index 9539d7c27b..c0f4986afd 100644
--- a/src/ol/animation.js
+++ b/src/ol/animation.js
@@ -1,5 +1,6 @@
 goog.provide('ol.animation');
 
+goog.require('ol');
 goog.require('ol.PreRenderFunction');
 goog.require('ol.ViewHint');
 goog.require('ol.coordinate');
@@ -16,7 +17,7 @@ goog.require('ol.easing');
 ol.animation.bounce = function(options) {
   var resolution = options.resolution;
   var start = options.start ? options.start : goog.now();
-  var duration = options.duration ? options.duration : 1000;
+  var duration = ol.isDef(options.duration) ? options.duration : 1000;
   var easing = options.easing ?
       options.easing : ol.easing.upAndDown;
   return (
@@ -54,7 +55,7 @@ ol.animation.pan = function(options) {
   var start = options.start ? options.start : goog.now();
   var sourceX = source[0];
   var sourceY = source[1];
-  var duration = options.duration ? options.duration : 1000;
+  var duration = ol.isDef(options.duration) ? options.duration : 1000;
   var easing = options.easing ?
       options.easing : ol.easing.inAndOut;
   return (
@@ -92,7 +93,7 @@ ol.animation.pan = function(options) {
 ol.animation.rotate = function(options) {
   var sourceRotation = options.rotation ? options.rotation : 0;
   var start = options.start ? options.start : goog.now();
-  var duration = options.duration ? options.duration : 1000;
+  var duration = ol.isDef(options.duration) ? options.duration : 1000;
   var easing = options.easing ?
       options.easing : ol.easing.inAndOut;
   var anchor = options.anchor ?
@@ -138,7 +139,7 @@ ol.animation.rotate = function(options) {
 ol.animation.zoom = function(options) {
   var sourceResolution = options.resolution;
   var start = options.start ? options.start : goog.now();
-  var duration = options.duration ? options.duration : 1000;
+  var duration = ol.isDef(options.duration) ? options.duration : 1000;
   var easing = options.easing ?
       options.easing : ol.easing.inAndOut;
   return (