| /******************************************************************************* |
| * Copyright (c) 2007 Borland Software Corporation |
| * |
| * 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: |
| * Borland Software Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.m2m.internal.qvt.oml.editor.ui.hyperlinks; |
| |
| |
| import org.eclipse.emf.common.util.URI; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.Region; |
| import org.eclipse.jface.text.hyperlink.IHyperlink; |
| import org.eclipse.m2m.internal.qvt.oml.cst.ImportCS; |
| import org.eclipse.ocl.cst.CSTNode; |
| import org.eclipse.ocl.cst.PathNameCS; |
| |
| /** |
| * @author vrepeshko |
| */ |
| public class ImportHyperlinkDetector implements IHyperlinkDetectorHelper { |
| |
| public IHyperlink detectHyperlink(IDetectionContext context) { |
| CSTNode syntaxElement = context.getSyntaxElement(); |
| |
| URI sourceFileURI = findDefinition(syntaxElement); |
| if(sourceFileURI != null) { |
| IRegion destRegion = new Region(0, 0); // point to the beginning |
| |
| ImportCS importCS = getImport(syntaxElement); |
| CSTNode linkNodeCS = (importCS != null) ? importCS.getPathNameCS() : null; |
| if(linkNodeCS == null) { |
| linkNodeCS = syntaxElement; |
| } |
| |
| IRegion hlinkReg = HyperlinkUtil.createRegion(linkNodeCS); |
| return new QvtFileHyperlink(hlinkReg, sourceFileURI, destRegion, destRegion); |
| } |
| |
| return null; |
| } |
| |
| public static URI findDefinition(CSTNode syntaxElement) { |
| ImportCS importCS = getImport(syntaxElement); |
| if(importCS != null && importCS.getAst() instanceof URI) { |
| return (URI) importCS.getAst(); |
| } |
| |
| return null; |
| } |
| |
| private static ImportCS getImport(CSTNode syntaxElement) { |
| ImportCS importCS = null; |
| if ((syntaxElement instanceof ImportCS)) { |
| importCS = (ImportCS) syntaxElement; |
| } else if(syntaxElement instanceof PathNameCS && syntaxElement.eContainer() instanceof ImportCS) { |
| importCS = (ImportCS) syntaxElement.eContainer(); |
| } |
| return importCS; |
| } |
| |
| } |