| /******************************************************************************* |
| * Copyright (c) 2010 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.wst.xsd.ui.internal.refactor; |
| |
| |
| import org.eclipse.core.expressions.PropertyTester; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.wst.xsd.ui.internal.adapters.XSDBaseAdapter; |
| import org.eclipse.xsd.XSDConcreteComponent; |
| import org.eclipse.xsd.XSDSchema; |
| import org.w3c.dom.Node; |
| |
| |
| public abstract class RefactorEnablementTester extends PropertyTester |
| { |
| |
| public boolean test(Object receiver, String property, Object[] args, Object expectedValue) |
| { |
| IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); |
| if (window == null) |
| { |
| return false; |
| } |
| |
| IWorkbenchPage activePage = window.getActivePage(); |
| if (activePage == null) |
| { |
| return false; |
| } |
| |
| IEditorPart editor = activePage.getActiveEditor(); |
| if (editor == null) |
| { |
| return false; |
| } |
| |
| XSDSchema schema = (XSDSchema)editor.getAdapter(XSDSchema.class); |
| |
| if (receiver instanceof IStructuredSelection) |
| { |
| IStructuredSelection fStructuredSelection = (IStructuredSelection)receiver; |
| receiver = fStructuredSelection.getFirstElement(); |
| |
| if (receiver instanceof XSDBaseAdapter) |
| { |
| receiver = ((XSDBaseAdapter)receiver).getTarget(); |
| } |
| |
| if (receiver instanceof XSDConcreteComponent) |
| { |
| return canEnable((XSDConcreteComponent)receiver, schema); |
| } |
| else if (receiver instanceof Node) |
| { |
| Node node = (Node)receiver; |
| if (schema != null) |
| { |
| XSDConcreteComponent concreteComponent = schema.getCorrespondingComponent(node); |
| return canEnable(concreteComponent, schema); |
| } |
| } |
| |
| return true; |
| } |
| return false; |
| } |
| |
| protected abstract boolean canEnable(XSDConcreteComponent selectedObject, XSDSchema schema); |
| |
| } |