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Handle undefined properties

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This commit is contained in:
Tom Payne
2012-07-13 19:13:17 +02:00
parent bb1e81b72a
commit 8279e79818
1 changed files with 4 additions and 3 deletions
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src/ol/maprenderer.js
+4 -3
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@@ -161,13 +161,14 @@ ol.MapRenderer.prototype.handleCameraChanged = function() {
this.cameraListenerKeys_ = null; this.cameraListenerKeys_ = null;
} }
var camera = this.getCamera(); var camera = this.getCamera();
if (!goog.isNull(camera)) { if (goog.isDefAndNotNull(camera)) {
this.cameraListenerKeys_ = goog.array.map( this.cameraListenerKeys_ = goog.array.map(
goog.object.getValues(ol.CameraProperty), goog.object.getValues(ol.CameraProperty),
function(cameraProperty) { function(cameraProperty) {
return goog.events.listen(camera, cameraProperty, return goog.events.listen(camera, cameraProperty,
this.handleCameraPropertyChanged, false, this); this.handleCameraPropertyChanged, false, this);
}); },
this);
} }
}; };
@@ -245,7 +246,7 @@ ol.MapRenderer.prototype.handleLayersChanged = function() {
this.layersListenerKeys_ = null; this.layersListenerKeys_ = null;
} }
var layers = this.getLayers(); var layers = this.getLayers();
if (!goog.isNull(layers)) { if (goog.isDefAndNotNull(layers)) {
this.layersListenerKeys_ = [ this.layersListenerKeys_ = [
goog.events.listen(layers, ol.ArrayEventType.INSERT_AT, goog.events.listen(layers, ol.ArrayEventType.INSERT_AT,
this.handleLayersInsertAt, false, this), this.handleLayersInsertAt, false, this),