/*
* Copyright 2003,2004,2005 Colin Crist
*
* 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 hermes.swing.actions;
import java.awt.Toolkit;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.FlavorEvent;
import java.awt.datatransfer.FlavorListener;
import java.awt.datatransfer.Transferable;
import javax.swing.Action;
/**
* @author colincrist@hermesjms.com
* @version $Id: ClipboardFlavourListener.java,v 1.1 2006/08/08 18:01:19 colincrist Exp $
*/
public class ClipboardFlavourListener implements FlavorListener
{
private Action action ;
private DataFlavor flavor ;
public ClipboardFlavourListener(Action action,DataFlavor flavor)
{
this.action = action ;
this.flavor = flavor ;
}
public void flavorsChanged(FlavorEvent arg0)
{
try
{
if (Toolkit.getDefaultToolkit().getSystemClipboard().isDataFlavorAvailable(flavor))
{
final Transferable clipboardContent = Toolkit.getDefaultToolkit().getSystemClipboard().getContents(null);
action.setEnabled(clipboardContent != null && clipboardContent.isDataFlavorSupported(flavor));
}
else
{
action.setEnabled(false);
}
}
catch (IllegalStateException ex)
{
action.setEnabled(false);
}
}
}