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/*****************************************************************************
* Copyright (c) 2013 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:
* CEA LIST - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.cdo.internal.ui.hyperlink;
import java.util.List;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.Request;
import org.eclipse.gef.commands.Command;
import org.eclipse.gmf.runtime.diagram.ui.requests.DropObjectsRequest;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.cdo.internal.ui.dnd.CDOResourceURITransferData;
import org.eclipse.papyrus.commands.Activator;
import org.eclipse.papyrus.infra.gmfdiag.common.helper.SemanticElementHelper;
import org.eclipse.papyrus.infra.gmfdiag.dnd.strategy.TransactionalDropStrategy;
import org.eclipse.swt.graphics.Image;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
/**
* A drop strategy that extracts URIs of CDO resources from an Ecore representation of a {@link CDOResourceURITransferData} to create hyperlinks.
*/
public class CDOResourceURIDropStrategy extends TransactionalDropStrategy {
private static final String ID = Activator.PLUGIN_ID + ".cdoResourceURI"; //$NON-NLS-1$
public CDOResourceURIDropStrategy() {
super();
}
@Override
public String getLabel() {
return Messages.DropStrategy_label;
}
@Override
public String getDescription() {
return Messages.DropStrategy_desc;
}
@Override
public Image getImage() {
return null;
}
@Override
public String getID() {
return ID;
}
@Override
public int getPriority() {
return 0;
}
@Override
protected Command doGetCommand(Request request, EditPart targetEditPart) {
if(request instanceof DropObjectsRequest) {
View view = getTargetView(targetEditPart);
if(view == null) {
return null;
}
final View mainView = SemanticElementHelper.findPrimaryView(view);
if(mainView instanceof Diagram) {
// don't create hyperlinks on the diagram surface
return null;
}
final DropObjectsRequest dropRequest = (DropObjectsRequest)request;
List<URI> hyperlinkURIs = null;
for(EObject next : Iterables.filter(dropRequest.getObjects(), EObject.class)) {
if(CDOResourceURITransferData.isCDOResourceURITransferData(next)) {
if(hyperlinkURIs == null) {
hyperlinkURIs = Lists.newArrayListWithCapacity(dropRequest.getObjects().size());
}
hyperlinkURIs.addAll(CDOResourceURITransferData.fromEObject(next).getURIs());
}
}
if(hyperlinkURIs != null) {
final TransactionalEditingDomain domain = getTransactionalEditingDomain(targetEditPart);
final List<URI> _hyperlinkURIs = hyperlinkURIs;
return new Command() {
@Override
public void execute() {
for(URI next : _hyperlinkURIs) {
new CreateCDOResourceHyperlinkCommand(domain, mainView, next.lastSegment(), next, false).execute();
}
}
};
}
}
return null;
}
}
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