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

/*

 * ListVFSFileTransferable.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.io.FileVFS;

import org.gjt.sp.jedit.io.VFSFile;



import java.awt.datatransfer.DataFlavor;

import java.awt.datatransfer.Transferable;

import java.awt.datatransfer.UnsupportedFlavorException;

import java.io.File;

import java.io.IOException;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collections;

import java.util.List;



/**

 * @author Matthieu Casanova

 * @since jEdit 4.4.x

 */

public class ListVFSFileTransferable implements Transferable

{

	public static final DataFlavor jEditFileList = new DataFlavor(List.class, "application/x-java-jEdit-list-vfsfile");

	public static final DataFlavor[] supported = {jEditFileList, DataFlavor.stringFlavor, DataFlavor.javaFileListFlavor};

	

	private final List<VFSFile> files;



	public ListVFSFileTransferable(VFSFile[] files)

	{

		this.files = Collections.unmodifiableList(Arrays.asList(files));

	}



	public DataFlavor[] getTransferDataFlavors()

	{

		return supported;

	}



	public boolean isDataFlavorSupported(DataFlavor flavor)

	{

		return jEditFileList.equals(flavor) || DataFlavor.stringFlavor.equals(flavor);

	}



	public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException

	{

		if (jEditFileList.equals(flavor))

		{

			return files;

		}

		else if (DataFlavor.stringFlavor.equals(flavor))

		{

			StringBuilder builder = new StringBuilder();

			for (int i = 0; i < files.size(); i++)

			{

				VFSFile vfsFile = files.get(i);

				if (i != 0)

					builder.append('\n');

				builder.append(vfsFile);

			}

			return builder.toString();

		}

		else if (DataFlavor.javaFileListFlavor.equals(flavor))

		{

			List<File> files = new ArrayList<File>(this.files.size());

			for (VFSFile file : this.files)

			{

				if (file.getVFS() instanceof FileVFS)

					files.add(new File(file.getPath()));

			}

			return files;

		}

		throw new UnsupportedFlavorException(flavor);

	}

}