| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.netbeans.modules.beans.beaninfo; |
| |
| import com.sun.source.util.SourcePositions; |
| import com.sun.source.util.TreePath; |
| import com.sun.source.util.Trees; |
| import java.io.IOException; |
| import java.util.Collection; |
| import javax.lang.model.element.Element; |
| import javax.swing.text.BadLocationException; |
| import javax.swing.text.Document; |
| import javax.swing.text.Position; |
| import javax.swing.text.StyledDocument; |
| import org.netbeans.api.editor.guards.GuardedSection; |
| import org.netbeans.api.editor.guards.GuardedSectionManager; |
| import org.netbeans.api.java.source.CompilationController; |
| import org.netbeans.api.java.source.JavaSource; |
| import org.netbeans.api.java.source.ModificationResult.Difference; |
| import org.netbeans.api.java.source.SourceUtils; |
| import org.netbeans.api.java.source.Task; |
| import org.netbeans.modules.refactoring.api.AbstractRefactoring; |
| import org.netbeans.modules.refactoring.api.Problem; |
| import org.netbeans.modules.refactoring.java.spi.DiffElement; |
| import org.netbeans.modules.refactoring.spi.GuardedBlockHandler; |
| import org.netbeans.modules.refactoring.spi.GuardedBlockHandlerFactory; |
| import org.netbeans.modules.refactoring.spi.RefactoringElementImplementation; |
| import org.netbeans.modules.refactoring.spi.Transaction; |
| import org.openide.filesystems.FileObject; |
| import org.openide.text.PositionBounds; |
| import org.openide.util.Exceptions; |
| |
| /** |
| * The handler allows to refactor {@link java.beans.PropertyEditor property editor} |
| * and other custom code. |
| * |
| * @author Jan Pokorsky |
| */ |
| @org.openide.util.lookup.ServiceProvider(service=org.netbeans.modules.refactoring.spi.GuardedBlockHandlerFactory.class) |
| public final class BIGuardedBlockHandlerFactory implements GuardedBlockHandlerFactory { |
| |
| public GuardedBlockHandler createInstance(AbstractRefactoring refactoring) { |
| return new BIGuardedBlockHandler(); |
| } |
| |
| private static final class BIGuardedBlockHandler implements GuardedBlockHandler { |
| |
| public Problem handleChange(RefactoringElementImplementation proposedChange, Collection<RefactoringElementImplementation> replacements, Collection<Transaction> transaction) { |
| if (proposedChange instanceof DiffElement) { |
| DiffElement diffel = (DiffElement) proposedChange; |
| FileObject fo = diffel.getParentFile(); |
| if (BIDataLoader.isBeanInfo(fo) && checkChange(fo, diffel.getPosition())) { |
| Difference diff = diffel.getLookup().lookup(Difference.class); |
| if (diff != null) { |
| diffel.setEnabled(true); |
| diff.setCommitToGuards(true); |
| replacements.add(proposedChange); |
| } |
| } |
| } |
| return null; |
| } |
| |
| private boolean checkChange(FileObject bifile, final PositionBounds span) { |
| final boolean[] result = new boolean[]{false}; |
| JavaSource js = JavaSource.forFileObject(bifile); |
| if (js != null) { |
| try { |
| js.runUserActionTask(new Task<CompilationController>() { |
| |
| public void run(CompilationController javac) throws Exception { |
| javac.toPhase(JavaSource.Phase.RESOLVED); |
| result[0] = checkChange(javac, span); |
| } |
| }, true); |
| } catch (IOException ex) { |
| // XXX create Problem? |
| Exceptions.printStackTrace(ex); |
| } |
| } |
| return result[0]; |
| } |
| |
| public void run(CompilationController javac) throws Exception { |
| |
| } |
| |
| private boolean checkChange(CompilationController javac, PositionBounds span) throws IOException, BadLocationException { |
| final int begin = span.getBegin().getOffset(); |
| final Trees trees = javac.getTrees(); |
| TreePath path = javac.getTreeUtilities().pathFor(begin + 1); |
| if (path == null) { |
| return false; |
| } |
| |
| Element element = trees.getElement(path); |
| if (element == null) { |
| return false; |
| } |
| |
| TreePath decl = trees.getPath(element); |
| if (decl != null) { |
| SourcePositions sourcePositions = trees.getSourcePositions(); |
| long declBegin = sourcePositions.getStartPosition(decl.getCompilationUnit(), decl.getLeaf()); |
| FileObject fo = SourceUtils.getFile(element, javac.getClasspathInfo()); |
| Document doc = javac.getDocument(); |
| GuardedSectionManager guards = GuardedSectionManager.getInstance((StyledDocument) doc); |
| |
| if (fo != javac.getFileObject() || guards != null && !isGuarded(guards, doc.createPosition((int) declBegin))) { |
| // tree being refactored is declared outside of this file |
| // or out of guarded sections. It should be safe to make change |
| return true; |
| } |
| } else { |
| // e.g. package; change is OK |
| return true; |
| } |
| return false; |
| } |
| |
| private boolean isGuarded(GuardedSectionManager guards, Position pos) { |
| for (GuardedSection guard : guards.getGuardedSections()) { |
| if (guard.contains(pos, true)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| } |
| |
| } |