/**
*
* Copyright 2013 sourceforge.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.gwtopenmaps.openlayers.client.event;
import org.gwtopenmaps.openlayers.client.control.WMSGetFeatureInfo;
import org.gwtopenmaps.openlayers.client.feature.VectorFeature;
import org.gwtopenmaps.openlayers.client.util.JSObject;
/**
* @author Dave Potts
* @author Lukas Johansson
*/
public interface GetFeatureInfoListener extends EventListener
{
public void onGetFeatureInfo(GetFeatureInfoEvent eventObject);
class GetFeatureInfoEvent extends EventObject
{
public GetFeatureInfoEvent(EventObject eventObject)
{
super(eventObject.getJSObject());
}
public WMSGetFeatureInfo getSource()
{
JSObject object = getSourceJSObject();
return (object != null) ? WMSGetFeatureInfo.narrowToWMSGetFeatureInfo(object) : null;
}
public String getText()
{
return getJSObject().getPropertyAsString("text");
}
/**
* Get the features returned by the request
* If infoFormat was set to GML WmsGetFeatureInfo parses the result and populates
* an array with the returned features. This method simple returns that array
* @return array of features
*/
public VectorFeature[] getFeatures()
{
JSObject[] jsArr = getJSObject().getPropertyAsArray("features");
if (jsArr.length == 0)
{
return null;
}
// In some cases the parser seems to produces an array with length=1 but with null as element
if (jsArr[0] == null)
{
return null;
}
VectorFeature[] result = new VectorFeature[jsArr.length];
for (int i = 0; i < jsArr.length; i++)
{
VectorFeature vf = VectorFeature.narrowToVectorFeature(jsArr[i]);
result[i] = vf;
}
return result;
}
}
}