/*
* Copyright 2017 OmniFaces
*
* 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.omnifaces.eventlistener;
import javax.faces.component.UIViewRoot;
import javax.faces.event.SystemEvent;
import javax.faces.event.SystemEventListener;
/**
* Default implementation for the SystemEventListener interface that's used for the subset of system events
* that are registered as "view event" on the component tree's view root.
*
* @see org.omnifaces.util.Events#subscribeToViewEvent(Class, SystemEventListener)
* @see UIViewRoot#subscribeToViewEvent(Class, SystemEventListener)
*
* @author Arjan Tijms
* @since 1.2
*/
public abstract class DefaultViewEventListener implements SystemEventListener {
@Override
public void processEvent(SystemEvent event) {
// NOOP
}
@Override
public boolean isListenerForSource(Object source) {
return source instanceof UIViewRoot;
}
}