org.eclipse.opencert.vocabulary.diagram/src/org/eclipse/opencert/vocabulary/diagram/part/VocabularyDiagramUpdateCommand.java

/*******************************************************************************
 * Copyright (c) 2016 KPIT Technologies.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/org/documents/epl-2.0/EPL-2.0.html
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *   Jan Mauersberger- initial API and implementation
 *   Sascha Baumgart- initial API and implementation
 *******************************************************************************/
/*
 * 
 */
package org.eclipse.opencert.vocabulary.diagram.part;

import java.util.Iterator;
import java.util.List;

import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.commands.IHandler;
import org.eclipse.core.commands.IHandlerListener;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gef.EditPart;
import org.eclipse.gmf.runtime.diagram.ui.editpolicies.CanonicalEditPolicy;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.PlatformUI;

/**
 * @generated
 */
public class VocabularyDiagramUpdateCommand implements IHandler {

	/**
	 * @generated
	 */
	public void addHandlerListener(IHandlerListener handlerListener) {
	}

	/**
	 * @generated
	 */
	public void dispose() {
	}

	/**
	 * @generated
	 */
	public Object execute(ExecutionEvent event) throws ExecutionException {
		ISelection selection = PlatformUI.getWorkbench()
				.getActiveWorkbenchWindow().getSelectionService()
				.getSelection();
		if (selection instanceof IStructuredSelection) {
			IStructuredSelection structuredSelection = (IStructuredSelection) selection;
			if (structuredSelection.size() != 1) {
				return null;
			}
			if (structuredSelection.getFirstElement() instanceof EditPart
					&& ((EditPart) structuredSelection.getFirstElement())
							.getModel() instanceof View) {
				EObject modelElement = ((View) ((EditPart) structuredSelection
						.getFirstElement()).getModel()).getElement();
				List editPolicies = CanonicalEditPolicy
						.getRegisteredEditPolicies(modelElement);
				for (Iterator it = editPolicies.iterator(); it.hasNext();) {
					CanonicalEditPolicy nextEditPolicy = (CanonicalEditPolicy) it
							.next();
					nextEditPolicy.refresh();
				}

			}
		}
		return null;
	}

	/**
	 * @generated
	 */
	public boolean isEnabled() {
		return true;
	}

	/**
	 * @generated
	 */
	public boolean isHandled() {
		return true;
	}

	/**
	 * @generated
	 */
	public void removeHandlerListener(IHandlerListener handlerListener) {
	}

}