51 lines
2.1 KiB
Java
51 lines
2.1 KiB
Java
/*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership.
|
|
* The ASF licenses this file to You 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.
|
|
*
|
|
* $Header:$
|
|
*/
|
|
package org.apache.beehive.controls.api.events;
|
|
|
|
import java.lang.reflect.InvocationTargetException;
|
|
|
|
import org.apache.beehive.controls.api.context.ControlContainerContext;
|
|
import org.apache.beehive.controls.api.context.ControlHandle;
|
|
import org.apache.beehive.controls.api.context.ControlThreadContext;
|
|
|
|
/**
|
|
* The EventDispatchHelper class is a simple implementation of the EventDispatcher interface
|
|
* that is suitable for use <b>inside</b> the execution context of a control container. It
|
|
* assumes that you are already running inside the target container instance, and all that is
|
|
* required is the correct routing of the event to the correct control.
|
|
*/
|
|
public class EventDispatchHelper implements EventDispatcher
|
|
{
|
|
public Object dispatchEvent(ControlHandle target, EventRef event, Object [] args)
|
|
throws IllegalAccessException, IllegalArgumentException, InvocationTargetException
|
|
{
|
|
//
|
|
// Obtain the current active control container context
|
|
//
|
|
ControlContainerContext context = ControlThreadContext.getContext();
|
|
if (context == null)
|
|
throw new IllegalStateException("No active control container context");
|
|
|
|
//
|
|
// Dispatch the event using it.
|
|
//
|
|
return context.dispatchEvent(target, event, args);
|
|
}
|
|
}
|