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/**
* Copyright (c) 2011 Atos.
*
* 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:
* Atos - Initial API and implementation
*
*/
package org.eclipse.papyrus.infra.gmfdiag.modelexplorer.queries;
import java.util.Iterator;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.gmf.runtime.notation.Diagram;
import org.eclipse.papyrus.emf.facet.efacet.core.IFacetManager;
import org.eclipse.papyrus.emf.facet.efacet.core.exception.DerivedTypedElementException;
import org.eclipse.papyrus.emf.facet.query.java.core.IJavaQuery2;
import org.eclipse.papyrus.emf.facet.query.java.core.IParameterValueList2;
import org.eclipse.papyrus.infra.gmfdiag.common.utils.DiagramUtils;
import org.eclipse.papyrus.views.modelexplorer.NavigatorUtils;
import org.eclipse.papyrus.views.modelexplorer.queries.AbstractEditorContainerQuery;
public class IsDiagramContainer extends AbstractEditorContainerQuery implements IJavaQuery2<EObject, Boolean> {
/**
* Return true if the element is a Diagram Container
*/
public Boolean evaluate(EObject source, IParameterValueList2 parameterValues, IFacetManager facetManager) throws DerivedTypedElementException {
Iterator<EObject> roots = NavigatorUtils.getNotationRoots(source);
if(roots != null) {
while(roots.hasNext()) {
EObject root = roots.next();
if(root instanceof Diagram) {
if(EcoreUtil.equals(DiagramUtils.getOwner((Diagram)root), source)) {
return true;
}
}
}
}
return false; //Return super...
}
}
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