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/*****************************************************************************
* Copyright (c) 2011, 2014 CEA LIST and others.
*
* 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
* Christian W. Damus (CEA) - bug 413703
*
*****************************************************************************/
package org.eclipse.papyrus.views.modelexplorer.newchild;
import java.util.ArrayList;
import java.util.Iterator;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.jface.action.ContributionItem;
import org.eclipse.jface.action.IContributionItem;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ITreeSelection;
import org.eclipse.jface.viewers.TreePath;
import org.eclipse.papyrus.infra.emf.utils.EMFHelper;
import org.eclipse.papyrus.infra.emf.utils.ServiceUtilsForEObject;
import org.eclipse.papyrus.infra.newchild.CreationMenuFactory;
import org.eclipse.papyrus.infra.newchild.CreationMenuRegistry;
import org.eclipse.papyrus.infra.newchild.elementcreationmenumodel.Folder;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.ui.ISelectionService;
import org.eclipse.ui.PlatformUI;
/**
* This class has in charge to create menu from elementCreationMenuModel
*
*/
public class DynamicNewChild extends ContributionItem {
protected TransactionalEditingDomain editingDomain;
protected CreationMenuRegistry creationMenuRegistry;
/**
*
* Constructor.
*
*/
public DynamicNewChild() {
creationMenuRegistry = new CreationMenuRegistry();
}
/**
*
* Constructor.
*
* @param id
*/
public DynamicNewChild(String id) {
super(id);
}
protected IContributionItem[] getContributionItems() {
return new IContributionItem[0];
}
@Override
public boolean isDynamic() {
return true;
}
@Override
public void fill(Menu menu, int index) {
EObject eObject = getSelection();
if(eObject != null) {
CreationMenuFactory creationMenuFactory = new CreationMenuFactory(editingDomain);
ArrayList<Folder> folders = creationMenuRegistry.getRootFolder();
Iterator<Folder> iterFolder = folders.iterator();
while(iterFolder.hasNext()) {
Folder currentFolder = iterFolder.next();
boolean hasbeenBuild = creationMenuFactory.populateMenu(menu, currentFolder, eObject, index);
if(hasbeenBuild) {
index++;
}
}
} else {
super.fill(menu, index);
}
}
/**
* getSelected eObject in the model explorer
*
* @return eObject or null
*/
protected EObject getSelection() {
ISelectionService selectionService = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getSelectionService();
ISelection selection = selectionService.getSelection();
if(selection instanceof IStructuredSelection) {
Object selectedobject = ((IStructuredSelection)selection).getFirstElement();
EObject selectedEObject = EMFHelper.getEObject(selectedobject);
EObject editingDomainCitizen = selectedEObject;
if((editingDomainCitizen instanceof EReference) && (selection instanceof ITreeSelection)) {
// The user selected a reference in the Advanced presentation. Infer the editing domain from the parent node, which is the reference owner
ITreeSelection treeSel = (ITreeSelection)selection;
TreePath[] paths = treeSel.getPathsFor(selectedobject);
if((paths != null) && (paths.length > 0) && (paths[0].getSegmentCount() > 1)) {
editingDomainCitizen = EMFHelper.getEObject(paths[0].getSegment(paths[0].getSegmentCount() - 2));
}
}
try {
editingDomain = ServiceUtilsForEObject.getInstance().getService(org.eclipse.emf.transaction.TransactionalEditingDomain.class, editingDomainCitizen);
} catch (Exception ex) {
//Nothing to do. We can't handle this case
}
return selectedEObject;
}
return null;
}
}
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