| /****************************************************************************** |
| * 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.emf.type.core.requests; |
| |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.transaction.TransactionalEditingDomain; |
| import org.eclipse.gmf.runtime.emf.type.core.EditHelperContext; |
| import org.eclipse.gmf.runtime.emf.type.core.IClientContext; |
| import org.eclipse.gmf.runtime.emf.type.core.IElementType; |
| |
| /** |
| * Request to get the context for editing a model element. |
| * <P> |
| * The context is used to obtain the <code>IEditHelper</code> with which to |
| * perform the editing. |
| * |
| * @author ldamus |
| */ |
| public class GetEditContextRequest extends AbstractEditCommandRequest { |
| |
| /** |
| * The edit request. |
| */ |
| private final IEditCommandRequest editRequest; |
| |
| /** |
| * The edit helper context for this request. |
| */ |
| private final Object editHelperContext; |
| |
| /** |
| * The resulting edit context. |
| */ |
| private Object editContext; |
| |
| /** |
| * Constructs a new request. |
| * |
| * @param editingDomain |
| * the editing domain in which I am requesting to make model |
| * @param editRequest |
| * the edit request whose context is being requested |
| */ |
| public GetEditContextRequest(TransactionalEditingDomain editingDomain, |
| IEditCommandRequest editRequest, Object editHelperContext) { |
| |
| super(editingDomain); |
| this.editRequest = editRequest; |
| this.editHelperContext = editHelperContext; |
| addParameters(editRequest.getParameters()); |
| } |
| |
| /** |
| * Constructs a new request. The editing domain is derived from the |
| * <code>editRequest</code>. |
| * |
| * @param editRequest |
| * the edit request whose context is being requested |
| */ |
| public GetEditContextRequest(IEditCommandRequest editRequest, |
| Object editHelperContext) { |
| |
| this(editRequest.getEditingDomain(), editRequest, editHelperContext); |
| } |
| |
| |
| /** |
| * Gets the edit helper context for this request. |
| */ |
| public Object getEditHelperContext() { |
| IClientContext context = getClientContext(); |
| |
| if (context == null) { |
| return editHelperContext; |
| |
| } else if (editHelperContext instanceof EObject) { |
| return new EditHelperContext((EObject) editHelperContext, context); |
| |
| } else if (editHelperContext instanceof IElementType) { |
| return new EditHelperContext((IElementType) editHelperContext, |
| context); |
| } |
| |
| return editHelperContext; |
| } |
| |
| /** |
| * Gets the edit command request for which the edit context is being sought. |
| * |
| * @return the edit command request |
| */ |
| public IEditCommandRequest getEditCommandRequest() { |
| return editRequest; |
| } |
| |
| /** |
| * Gets the requested edit context. |
| * |
| * @return the edit context |
| */ |
| public Object getEditContext() { |
| return editContext; |
| } |
| |
| /** |
| * Sets the requested edit context. Clients asked to get a command for this |
| * request should also set the edit context if the command they will return |
| * will create or return a different context. |
| * |
| * @param editContext |
| * the new edit context |
| */ |
| public void setEditContext(Object editContext) { |
| this.editContext = editContext; |
| } |
| |
| } |