Content of file ECPDropAdapter.java

/*******************************************************************************
 * Copyright (c) 2011-2012 EclipseSource Muenchen GmbH and others.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 * Eugen Neufeld - initial API and implementation
 ******************************************************************************/
package org.eclipse.emf.ecp.ui.common.dnd;

import org.eclipse.emf.ecp.core.ECPProject;
import org.eclipse.emf.ecp.core.util.ECPUtil;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.ui.dnd.EditingDomainViewerDropAdapter;
import org.eclipse.jface.viewers.Viewer;

/**
 * @author Eugen Neufeld
 *
 */
public abstract class ECPDropAdapter extends EditingDomainViewerDropAdapter {

	/**
	 * Default constructor for drop adapters initialized by extension point.
	 */
	public ECPDropAdapter() {
		this(null, null);
	}

	/**
	 * Constructor.
	 *
	 * @param domain the {@link EditingDomain} to use
	 * @param viewer the Viewer this {@link EditingDomainViewerDropAdapter} is applied to
	 */
	public ECPDropAdapter(EditingDomain domain, Viewer viewer) {
		super(domain, viewer);
	}

	/**
	 *
	 * @param editingDomain Th {@link EditingDomain} to be used.
	 */
	public void setEditingDomain(EditingDomain editingDomain) {
		domain = editingDomain;
	}

	/**
	 *
	 * @param viewer The {@link Viewer}, this drop adapter operates on
	 */
	public void setViewer(Viewer viewer) {
		this.viewer = viewer;
	}

	/**
	 * Helper method to find the editing domain the provided object belongs to.
	 *
	 * @param object the {@link Object} to find the {@link EditingDomain} for
	 * @return the EditingDomain of this Object or null
	 */
	protected EditingDomain getProjectDomain(Object object) {
		final ECPProject project = ECPUtil.getECPProjectManager().getProject(object);
		if (project != null) {
			return project.getEditingDomain();
		}
		return null;
	}
}