| /* |
| * 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.refactoring.java.spi; |
| |
| import java.io.IOException; |
| import java.lang.ref.WeakReference; |
| import javax.swing.text.Position; |
| import org.netbeans.api.java.source.ModificationResult; |
| import org.netbeans.api.java.source.ModificationResult.Difference; |
| import org.netbeans.modules.refactoring.java.ui.tree.ElementGripFactory; |
| import org.netbeans.modules.refactoring.spi.SimpleRefactoringElementImplementation; |
| import org.openide.filesystems.FileObject; |
| import org.openide.text.PositionBounds; |
| import org.openide.text.PositionRef; |
| import org.openide.util.Exceptions; |
| import org.openide.util.Lookup; |
| import org.openide.util.NbBundle; |
| import org.openide.util.lookup.Lookups; |
| |
| /** |
| * Implementatation of RefactoringElementImplementation specific to refactoring |
| * in java files. |
| * |
| * @author Jan Becicka |
| */ |
| public final class DiffElement extends SimpleRefactoringElementImplementation { |
| private PositionBounds bounds; |
| private String displayText; |
| private FileObject parentFile; |
| private Difference diff; |
| private ModificationResult modification; |
| private WeakReference<String> newFileContent; |
| |
| private DiffElement(Difference diff, PositionBounds bounds, FileObject parentFile, ModificationResult modification) { |
| this.bounds = bounds; |
| final String description = diff.getDescription(); |
| if (description == null) { |
| displayText = NbBundle.getMessage(DiffElement.class, "LBL_NotAvailable"); |
| } else { |
| this.displayText = description; |
| } |
| this.parentFile = parentFile; |
| this.diff = diff; |
| this.modification = modification; |
| } |
| |
| @Override |
| public String getDisplayText() { |
| return displayText; |
| } |
| |
| @Override |
| public Lookup getLookup() { |
| Object composite = null; |
| if (bounds!=null) { |
| composite = ElementGripFactory.getDefault().get(parentFile, bounds.getBegin().getOffset()); |
| } |
| if (composite==null) { |
| composite = parentFile; |
| } |
| return Lookups.fixed(composite, diff); |
| } |
| |
| @Override |
| public void setEnabled(boolean enabled) { |
| diff.exclude(!enabled); |
| newFileContent = null; |
| super.setEnabled(enabled); |
| } |
| |
| @Override |
| public PositionBounds getPosition() { |
| return bounds; |
| } |
| |
| @Override |
| public String getText() { |
| return displayText; |
| } |
| |
| @Override |
| public void performChange() { |
| } |
| |
| @Override |
| public FileObject getParentFile() { |
| if (diff.getKind() == Difference.Kind.CREATE) { |
| return parentFile.getParent(); |
| } |
| return parentFile; |
| } |
| |
| @Override |
| protected String getNewFileContent() { |
| String result; |
| if (newFileContent !=null) { |
| result = newFileContent.get(); |
| if (result!=null) { |
| return result; |
| } |
| } |
| try { |
| if (diff.getKind()==Difference.Kind.CREATE) { |
| result = diff.getNewText(); |
| } else { |
| result = modification.getResultingSource(parentFile); |
| } |
| } catch (IOException ex) { |
| Exceptions.printStackTrace(ex); |
| return null; |
| } |
| newFileContent = new WeakReference<String>(result); |
| return result; |
| } |
| |
| /** |
| * Factory method for DiffElement |
| * @param diff diff instance corresponding to thid Element |
| * @param fileObject fileObject corresponding to this Element |
| * @param modification |
| * @return ModificationResult corresponding to this change |
| */ |
| public static DiffElement create(Difference diff, FileObject fileObject, ModificationResult modification) { |
| Position start = diff.getStartPosition(); |
| Position end = diff.getEndPosition(); |
| PositionBounds bounds = null; |
| if (diff.getKind() != Difference.Kind.CREATE) { |
| // FIXME - unnecessary dependency on openide.text |
| bounds = new PositionBounds((PositionRef)start, (PositionRef)end); |
| } |
| return new DiffElement(diff, bounds, fileObject, modification); |
| } |
| } |