| /******************************************************************************* |
| * Copyright (c) 2005 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 |
| * Matt Chapman - initial version |
| *******************************************************************************/ |
| package org.eclipse.ajdt.internal.ui.editor; |
| |
| import org.eclipse.ajdt.core.javaelements.AJCompilationUnit; |
| import org.eclipse.ajdt.core.javaelements.AJCompilationUnitManager; |
| import org.eclipse.ajdt.core.javaelements.PointcutUtilities; |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.internal.ui.actions.SelectionConverter; |
| import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor; |
| import org.eclipse.jdt.internal.ui.javaeditor.JavaElementHyperlink; |
| import org.eclipse.jdt.ui.actions.SelectionDispatchAction; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.jface.text.Region; |
| import org.eclipse.jface.text.hyperlink.IHyperlink; |
| import org.eclipse.jface.text.hyperlink.IHyperlinkDetector; |
| import org.eclipse.ui.texteditor.ITextEditor; |
| |
| public class PointcutElementHyperlinkDetector implements IHyperlinkDetector { |
| private ITextEditor fTextEditor; |
| |
| /** |
| * Creates a new Java element hyperlink detector. |
| * |
| * @param editor |
| * the editor in which to detect the hyperlink |
| */ |
| public PointcutElementHyperlinkDetector(ITextEditor editor) { |
| Assert.isNotNull(editor); |
| fTextEditor = editor; |
| } |
| |
| public IHyperlink[] detectHyperlinks(ITextViewer textViewer, |
| IRegion region, boolean canShowMultipleHyperlinks) { |
| if (region == null || canShowMultipleHyperlinks |
| || !(fTextEditor instanceof AspectJEditor)) { |
| return null; |
| } |
| IAction openAction = fTextEditor.getAction("OpenEditor"); //$NON-NLS-1$ |
| if (openAction == null) { |
| return null; |
| } |
| int offset = region.getOffset(); |
| |
| IJavaElement input = SelectionConverter |
| .getInput((JavaEditor) fTextEditor); |
| if (input instanceof ICompilationUnit) { |
| input = AJCompilationUnitManager.mapToAJCompilationUnit((ICompilationUnit)input); |
| } |
| if (input instanceof AJCompilationUnit) { |
| String source = PointcutUtilities.isInPointcutContext((AJCompilationUnit)input,offset); |
| if (source != null) { |
| IRegion reg = selectWord(source, offset); |
| if (reg != null) { |
| return new IHyperlink[] { |
| new JavaElementHyperlink(reg, (SelectionDispatchAction) openAction, input, false) }; |
| } |
| } |
| } |
| return null; |
| } |
| |
| private IRegion selectWord(String document, int anchor) { |
| int offset = anchor; |
| char c; |
| |
| while (offset >= 0) { |
| c = document.charAt(offset); |
| if (!Character.isJavaIdentifierPart(c)) |
| break; |
| --offset; |
| } |
| |
| int start = offset; |
| |
| offset = anchor; |
| int length = document.length(); |
| |
| while (offset < length) { |
| c = document.charAt(offset); |
| if (!Character.isJavaIdentifierPart(c)) |
| break; |
| ++offset; |
| } |
| |
| int end = offset; |
| |
| if (start == end) { |
| return null; |
| } |
| if (PointcutUtilities.isAjPointcutKeyword(document.substring(start + 1, end))) { |
| return null; |
| } |
| return new Region(start + 1, end - start - 1); |
| } |
| |
| } |