1 files changed, 110 insertions, 0 deletions
diff --git a/plugins/infra/nattable/org.eclipse.papyrus.infra.nattable/src/org/eclipse/papyrus/infra/nattable/helper/advice/TableContentsAdviceHelper.java b/plugins/infra/nattable/org.eclipse.papyrus.infra.nattable/src/org/eclipse/papyrus/infra/nattable/helper/advice/TableContentsAdviceHelper.java
new file mode 100644
index 00000000000..4bed241d348
--- /dev/null
+++ b/plugins/infra/nattable/org.eclipse.papyrus.infra.nattable/src/org/eclipse/papyrus/infra/nattable/helper/advice/TableContentsAdviceHelper.java
@@ -0,0 +1,110 @@
+/*****************************************************************************
+ * Copyright (c) 2012 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:
+ *  Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
+ *
+ *****************************************************************************/
+package org.eclipse.papyrus.infra.nattable.helper.advice;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Set;
+
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.transaction.TransactionalEditingDomain;
+import org.eclipse.gmf.runtime.common.core.command.ICommand;
+import org.eclipse.gmf.runtime.emf.core.util.CrossReferenceAdapter;
+import org.eclipse.gmf.runtime.emf.type.core.edithelper.AbstractEditHelperAdvice;
+import org.eclipse.gmf.runtime.emf.type.core.requests.DestroyDependentsRequest;
+import org.eclipse.papyrus.infra.core.services.ServiceException;
+import org.eclipse.papyrus.infra.emf.utils.ServiceUtilsForEObject;
+import org.eclipse.papyrus.infra.nattable.Activator;
+import org.eclipse.papyrus.infra.nattable.model.nattable.nattableaxis.NattableaxisPackage;
+import org.eclipse.papyrus.infra.nattable.model.nattable.nattablecell.ICellAxisWrapper;
+import org.eclipse.papyrus.infra.nattable.model.nattable.nattablecell.NattablecellPackage;
+
+/**
+ * 
+ * This helper allows to destroy table elements when a destroy element is referenced by a table
+ * 
+ */
+public class TableContentsAdviceHelper extends AbstractEditHelperAdvice {
+
+	/**
+	 * 
+	 * @see org.eclipse.gmf.runtime.emf.type.core.edithelper.AbstractEditHelperAdvice#getBeforeDestroyDependentsCommand(org.eclipse.gmf.runtime.emf.type.core.requests.DestroyDependentsRequest)
+	 * 
+	 * @param request
+	 * @return
+	 */
+	@Override
+	protected ICommand getBeforeDestroyDependentsCommand(DestroyDependentsRequest request) {
+		final EObject destroyedElement = request.getElementToDestroy();
+		return request.getDestroyDependentsCommand(getAssociatedElementToDestroy(destroyedElement));
+		//		return null;
+	}
+
+	@Override
+	protected ICommand getAfterDestroyDependentsCommand(DestroyDependentsRequest request) {
+		//		final EObject destroyedElement = request.getElementToDestroy();
+		//		return request.getDestroyDependentsCommand(getAssociatedElementToDestroy(destroyedElement));
+		return null;
+	}
+
+	/**
+	 * 
+	 * @param eobject
+	 *        the destroyed element
+	 * @return
+	 *         the associated element to destroy in the same time than the eobject
+	 */
+	protected List<EObject> getAssociatedElementToDestroy(final EObject eobject) {
+		final CrossReferenceAdapter adapter = getCrossReferenceAdapter(eobject);
+		Set<EObject> elementsToDestroy = adapter.getInverseReferencers(eobject, NattableaxisPackage.eINSTANCE.getEObjectAxis_Element(), NattableaxisPackage.eINSTANCE.getEObjectAxis());
+		elementsToDestroy.addAll(adapter.getInverseReferencers(eobject, NattablecellPackage.eINSTANCE.getEObjectAxisWrapper_Element(), NattablecellPackage.eINSTANCE.getEObjectAxisWrapper()));
+
+		if(eobject instanceof ICellAxisWrapper) {
+			elementsToDestroy.addAll(adapter.getInverseReferencers(eobject, NattablecellPackage.eINSTANCE.getCell_RowWrapper(), NattablecellPackage.eINSTANCE.getCell()));
+			elementsToDestroy.addAll(adapter.getInverseReferencers(eobject, NattablecellPackage.eINSTANCE.getCell_ColumnWrapper(), NattablecellPackage.eINSTANCE.getCell()));
+		}
+		//		for(final EObject current : cellWrapper) {
+		//			if(current instanceof ICellAxisWrapper) {
+		//				elementsToDestroy.add(current.eContainer());
+		//			}
+		//		}
+		return new ArrayList<EObject>(elementsToDestroy);
+	}
+
+	//Duplicated code from UML Diagram common
+	/**
+	 * Returns the {@link CrossReferenceAdapter} corresponding to an {@link EObject}
+	 * 
+	 * @param element
+	 *        the {@link EObject} element
+	 * @return the {@link CrossReferenceAdapter} corresponding to element
+	 */
+	public static CrossReferenceAdapter getCrossReferenceAdapter(final EObject element) {
+		CrossReferenceAdapter crossReferenceAdapter = CrossReferenceAdapter.getExistingCrossReferenceAdapter(element);
+		if(crossReferenceAdapter == null) {
+
+			TransactionalEditingDomain domain = null;
+			try {
+				domain = ServiceUtilsForEObject.getInstance().getService(TransactionalEditingDomain.class, element);
+			} catch (ServiceException e) {
+				Activator.log.error(e);
+			}
+			if(domain != null) {
+				crossReferenceAdapter = CrossReferenceAdapter.getCrossReferenceAdapter(domain.getResourceSet());
+			}
+		}
+
+		return crossReferenceAdapter;
+	}
+}