/jEdit/tags/jedit-4-5-pre1/org/gjt/sp/jedit/datatransfer/TransferHandler.java

/*

 * TransferHandler.java

 * :tabSize=8:indentSize=8:noTabs=false:

 * :folding=explicit:collapseFolds=1:

 *

 * Copyright (C) 2010 Matthieu Casanova

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

 */

package org.gjt.sp.jedit.datatransfer;



import org.gjt.sp.jedit.textarea.TextArea;



import java.awt.datatransfer.DataFlavor;

import java.awt.datatransfer.Transferable;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;



/**

 * @author Matthieu Casanova

 * @since jEdit 4.4.x

 */

public class TransferHandler

{

	private static final TransferHandler instance = new TransferHandler();



	private final List<JEditTransferableService> services;



	private TransferHandler()

	{

		services = new ArrayList<JEditTransferableService>();

	}



	public static TransferHandler getInstance()

	{

		return instance;

	}



	public void registerTransferableService(JEditTransferableService transferableService)

	{

		if (!services.contains(transferableService))

			services.add(transferableService);

	}



	public Transferable getTransferable(TextArea textArea, String text)

	{

		Map<DataFlavor, Transferable> flavors = new HashMap<DataFlavor, Transferable>();

		for (JEditTransferableService service : services)

		{

			if (service.accept(textArea, text))

			{

				Transferable t = service.getTransferable(textArea, text);

				DataFlavor[] supportedDataFlavor = t.getTransferDataFlavors();

				for (DataFlavor dataFlavor : supportedDataFlavor)

				{

					flavors.put(dataFlavor, t);

				}

			}

		}

		 Transferable transferable = new JEditTransferable(flavors);



		return transferable;

	}

}