/**
 *
 *   Copyright 2015 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;

import java.util.Set;

import org.gwtopenmaps.openlayers.client.event.EventListener;
import org.gwtopenmaps.openlayers.client.event.EventListenerCollection;
import org.gwtopenmaps.openlayers.client.util.JSObject;

/**
 * Wrapper object for OpenLayer objects.
 *
 * @author Erdem Gunay
 * @author Edwin Commandeur
 *
 */
public class OpenLayersEObjectWrapper extends OpenLayersObjectWrapper {

    protected EventListenerCollection eventListeners = new EventListenerCollection();

    protected OpenLayersEObjectWrapper(JSObject openLayersObject) {
        super(openLayersObject);
    }

    public static OpenLayersEObjectWrapper narrowToOpenLayersEObjectWrapper(
            JSObject element) {
        return (element == null) ? null : new OpenLayersEObjectWrapper(element);
    }

    public void removeListener(EventListener listener) {
        eventListeners.removeListener(this, listener);
    }

    public Set<EventListener> getListeners() {
        return eventListeners.getListeners();
    }
}