cmpcj/src/de/schwarzrot/control/dnd/ListSelectionSourceTransferHandler.java


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/**
 * ======================== legal notice ======================
 * 
 * File: ListSelectionSourceTransferHandler.java Created: 13. June 2012, 04:57
 * Author: <a href="mailto:geronimo013@gmx.de">Geronimo</a> Project: cmpc - a
 * java frontend (client) part of compound media player uses external players to
 * play the media
 * 
 * CMP - compound media player
 * 
 * is a client/server mediaplayer intended to play any media from any
 * workstation without the need to export or mount shares. cmps is an easy to
 * use backend with a (ready to use) HTML-interface. Additionally the backend
 * supports authentication via HTTP-digest authorization. cmpc is a client with
 * vdr-like osd-menues.
 * 
 * Copyright (c) 2012 Reinhard Mantey, some rights reserved! published under
 * Creative Commons by-sa For details see
 * http://creativecommons.org/licenses/by-sa/3.0/
 * 
 * The cmp project's homepage is at
 * http://projects.vdr-developer.org/projects/cmp
 * 
 * --------------------------------------------------------------
 */
package de.schwarzrot.control.dnd;


import java.awt.datatransfer.Transferable;
import java.io.File;
import java.util.ArrayList;
import java.util.List;
import javax.swing.JComponent;
import javax.swing.TransferHandler;
import ca.odell.glazedlists.EventList;
import ca.odell.glazedlists.swing.DefaultEventSelectionModel;
import de.schwarzrot.media.domain.Media;


public class ListSelectionSourceTransferHandler extends TransferHandler {
    private static final long serialVersionUID = 713L;


    public ListSelectionSourceTransferHandler(DefaultEventSelectionModel<Media> selectionModel) {
        sm = selectionModel;
    }


    @Override
    public Transferable createTransferable(JComponent c) {
        if (sm.isSelectionEmpty())
            return null;
        EventList<Media> selection = sm.getSelected();
        List<File> transferList = new ArrayList<File>();

        selection.getReadWriteLock().readLock().lock();
        for (Media m : selection) {
            transferList.add(m.getRealPath());
        }
        selection.getReadWriteLock().readLock().unlock();

        return new FilelistTransferable(transferList);
    }


    @Override
    public int getSourceActions(JComponent c) {
        return TransferHandler.LINK;
    }

    private DefaultEventSelectionModel<Media> sm;
}