| /****************************************************************************** |
| * Copyright (c) 2005, 2006 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| ****************************************************************************/ |
| |
| package org.eclipse.gmf.runtime.diagram.ui.actions.internal; |
| |
| import java.util.Iterator; |
| |
| import org.eclipse.ui.PlatformUI; |
| |
| import org.eclipse.core.runtime.IAdaptable; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.transaction.TransactionalEditingDomain; |
| import org.eclipse.emf.transaction.util.TransactionUtil; |
| import org.eclipse.gmf.runtime.common.core.service.IOperation; |
| import org.eclipse.gmf.runtime.emf.ui.services.action.AbstractModelActionFilterProvider; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| |
| /** |
| * An action filter provider for the Diagram UI Actions plugin. |
| * |
| * @author cmahoney |
| */ |
| public class DiagramActionFilterProvider |
| extends AbstractModelActionFilterProvider { |
| |
| /** |
| * This string from XML is used to identify this provider |
| */ |
| private static final String CAN_DUPLICATE = "canDuplicate"; //$NON-NLS-1$ |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.gmf.runtime.emf.ui.services.action.AbstractModelActionFilterProvider#doTestAttribute(java.lang.Object, |
| * java.lang.String, java.lang.String) |
| */ |
| protected boolean doTestAttribute(Object target, String name, String value) { |
| if (CAN_DUPLICATE.equals(name)) { |
| return DuplicateActionDelegate.canDuplicate(getStructuredSelection(), PlatformUI.getWorkbench() |
| .getActiveWorkbenchWindow().getPartService().getActivePart()); |
| } |
| return false; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.gmf.runtime.emf.ui.services.action.AbstractModelActionFilterProvider#doProvides(org.eclipse.gmf.runtime.common.core.service.IOperation) |
| */ |
| protected boolean doProvides(IOperation operation) { |
| return true; |
| } |
| |
| /** |
| * Finds my editing domain by adating the current selection to |
| * <code>EObject</code>. |
| */ |
| protected TransactionalEditingDomain getEditingDomain(Object target) { |
| |
| TransactionalEditingDomain result = null; |
| IStructuredSelection selection = getStructuredSelection(); |
| |
| if (selection != null && !selection.isEmpty()) { |
| |
| for (Iterator i = selection.iterator(); i.hasNext() |
| && result == null;) { |
| Object next = i.next(); |
| |
| if (next instanceof IAdaptable) { |
| EObject element = (EObject) ((IAdaptable) next) |
| .getAdapter(EObject.class); |
| |
| if (element != null) { |
| result = TransactionUtil.getEditingDomain(element); |
| } |
| } |
| } |
| } |
| |
| return result; |
| } |
| |
| } |