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/*****************************************************************************
* Copyright (c) 2010 CEA LIST.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.customization.properties.editor;
import java.util.Collection;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.ui.dnd.EditingDomainViewerDropAdapter;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.papyrus.customization.properties.util.ActionUtil;
import org.eclipse.papyrus.infra.emf.utils.EMFHelper;
import org.eclipse.swt.widgets.Widget;
/**
* An adapter for Drag & Drop in the Context editor. The default Ecore drag & drop
* is not compatible with the EMF Facet Tree Elements
*
* @author Camille Letavernier
*/
public class MoDiscoDropAdapter extends EditingDomainViewerDropAdapter {
/**
*
* Constructor.
*
* @param domain
* The Editing domain for this Drop Adapter
* @param viewer
* The Viewer for this Drop Adapter
*/
public MoDiscoDropAdapter(EditingDomain domain, Viewer viewer) {
super(domain, viewer);
}
@Override
protected Collection<?> extractDragSource(Object object) {
if(object instanceof ISelection) {
return super.extractDragSource(ActionUtil.getAdaptedSelection((ISelection)object));
} else {
return super.extractDragSource(object);
}
}
@Override
protected Object extractDropTarget(Widget item) {
Object dropTarget = super.extractDropTarget(item);
EObject eObject = EMFHelper.getEObject(dropTarget);
if(eObject != null) {
return eObject;
}
return dropTarget;
}
}
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