/*
* Created on Jun 24, 2008
*
* 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.
*
* Copyright @2008-2010 the original author or authors.
*/
package org.fest.swing.input;
import static java.awt.event.WindowEvent.WINDOW_CLOSED;
import static java.awt.event.WindowEvent.WINDOW_CLOSING;
import java.awt.AWTEvent;
import java.awt.Window;
import java.awt.event.WindowEvent;
import java.util.Map;
import java.util.WeakHashMap;
/**
* Verifies that a notification of the disposal of a <code>{@link Window}</code> is not duplicated.
*
* @author Alex Ruiz
*/
class DisposedWindowMonitor {
final Map<Window, Boolean> disposedWindows = new WeakHashMap<Window, Boolean>();
// We want to ignore consecutive event indicating window disposal; it needs to be an intervening SHOWN/OPEN before
// we're interested again.
boolean isDuplicateDispose(AWTEvent event) {
if (!(event instanceof WindowEvent)) return false;
WindowEvent windowEvent = (WindowEvent) event;
int eventId = windowEvent.getID();
if (eventId == WINDOW_CLOSING) return false;
if (eventId == WINDOW_CLOSED) {
Window w = windowEvent.getWindow();
if (disposedWindows.containsKey(w)) return true;
disposedWindows.put(w, true);
// execute(addComponentListenerTask(w, new DisposalMonitor(disposedWindows)));
w.addComponentListener(new DisposalMonitor(disposedWindows));
return false;
}
disposedWindows.remove(windowEvent.getWindow());
return false;
}
}