DropFavouriteListener.java

package com.isencia.passerelle.workbench.model.editor.ui.palette;

import org.eclipse.gef.dnd.TemplateTransfer;
import org.eclipse.gef.requests.CreationFactory;
import org.eclipse.gef.ui.palette.PaletteViewer;
import org.eclipse.swt.dnd.DropTargetAdapter;
import org.eclipse.swt.dnd.DropTargetEvent;

public class DropFavouriteListener extends DropTargetAdapter {
	private PaletteViewer paletteViewer;

	public DropFavouriteListener(PaletteViewer paletteViewer) {
		super();
		this.paletteViewer = paletteViewer;
	}

	public void drop(DropTargetEvent event) {

		PaletteBuilder builder = PaletteBuilder.getInstance();
		builder.setSelectedItem(config);

	}

	private CreationFactory config;

	@Override
	public void dragEnter(DropTargetEvent event) {

		super.dragEnter(event);
	}

	@Override
	public void dragLeave(DropTargetEvent event) {
		// TODO Auto-generated method stub
		super.dragLeave(event);
	}

	@Override
	public void dragOperationChanged(DropTargetEvent event) {
		// TODO Auto-generated method stub
		super.dragOperationChanged(event);
	}

	@Override
	public void dragOver(DropTargetEvent event) {
		super.dragOver(event);
	}

	@Override
	public void dropAccept(DropTargetEvent event) {
		// TODO Auto-generated method stub
		CreationFactory fact = getFactory(TemplateTransfer.getInstance().getTemplate());
		if (fact != null) {
			config = fact;
		}
	}

	protected CreationFactory getFactory(Object template) {
		if (template instanceof CreationFactory)
			return ((CreationFactory) template);
		else
			return null;
	}

}