handleMapPostrender may get a null frameState

2013-07-09 10:06:01 +02:00
parent ccf6aa10ac
commit 44a9c181aa
1 changed files with 5 additions and 0 deletions
--- a/src/ol/control/zoomslidercontrol.js
+++ b/src/ol/control/zoomslidercontrol.js
@@ -159,6 +159,11 @@ ol.control.ZoomSlider.prototype.initSlider_ = function() {
 * @inheritDoc
 */
 ol.control.ZoomSlider.prototype.handleMapPostrender = function(mapEvent) {
+  if (goog.isNull(mapEvent.frameState)) {
+    return;
+  }
+  goog.asserts.assert(
+      goog.isDefAndNotNull(mapEvent.frameState.view2DState));
  if (!this.sliderInitialized_) {
    this.initSlider_();
  }