package org.argeo.cms.ui.fs;
   
   import java.io.IOException;
   import java.io.InputStream;
   
   import org.apache.commons.logging.Log;
   import org.apache.commons.logging.LogFactory;
   import org.argeo.eclipse.ui.specific.FileDropAdapter;
   import org.eclipse.swt.dnd.DND;
  import org.eclipse.swt.dnd.DropTarget;
  import org.eclipse.swt.dnd.DropTargetEvent;
  import org.eclipse.swt.widgets.Control;
  
  /** Allows a control to receive file drops. */
  public class FileDrop {
  	private final static Log log = LogFactory.getLog(FileDrop.class);
  
  	public void createDropTarget(Control control) {
  		FileDropAdapter fileDropAdapter = new FileDropAdapter() {
  			@Override
  			protected void processUpload(InputStream in, String fileName, String contentType) throws IOException {
  				if (log.isDebugEnabled())
  					log.debug("Process upload of " + fileName + " (" + contentType + ")");
  				processFileUpload(in, fileName, contentType);
  			}
  		};
  		DropTarget dropTarget = new DropTarget(control, DND.DROP_MOVE | DND.DROP_COPY);
  		fileDropAdapter.prepareDropTarget(control, dropTarget);
  	}
  
  	public void handleFileDrop(Control control, DropTargetEvent event) {
  	}
  
  	/** Executed in UI thread */
  	protected void processFileUpload(InputStream in, String fileName, String contentType) throws IOException {
  
  	}
  }