| /******************************************************************************* |
| * Copyright (c) 2000, 2006 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.jdt.internal.ui.compare; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.Map; |
| import java.util.ResourceBundle; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.IStatus; |
| |
| import org.eclipse.core.filebuffers.FileBuffers; |
| import org.eclipse.core.filebuffers.ITextFileBuffer; |
| import org.eclipse.core.filebuffers.ITextFileBufferManager; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IFileState; |
| |
| import org.eclipse.swt.widgets.Shell; |
| |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.util.Assert; |
| import org.eclipse.jface.viewers.ISelection; |
| |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.TextUtilities; |
| |
| import org.eclipse.compare.EditionSelectionDialog; |
| import org.eclipse.compare.HistoryItem; |
| import org.eclipse.compare.IStreamContentAccessor; |
| import org.eclipse.compare.ITypedElement; |
| import org.eclipse.compare.ResourceNode; |
| |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.IJavaProject; |
| import org.eclipse.jdt.core.IMember; |
| import org.eclipse.jdt.core.ISourceRange; |
| import org.eclipse.jdt.core.dom.ASTNode; |
| import org.eclipse.jdt.core.dom.AnnotationTypeDeclaration; |
| import org.eclipse.jdt.core.dom.BodyDeclaration; |
| import org.eclipse.jdt.core.dom.CompilationUnit; |
| import org.eclipse.jdt.core.dom.EnumDeclaration; |
| import org.eclipse.jdt.core.dom.rewrite.ASTRewrite; |
| |
| import org.eclipse.jdt.internal.corext.SourceRange; |
| import org.eclipse.jdt.internal.corext.dom.ASTNodes; |
| import org.eclipse.jdt.internal.corext.dom.NodeFinder; |
| import org.eclipse.jdt.internal.corext.util.Resources; |
| |
| import org.eclipse.jdt.internal.ui.IJavaHelpContextIds; |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor; |
| import org.eclipse.jdt.internal.ui.util.ExceptionHandler; |
| |
| |
| /** |
| * Provides "Replace from local history" for Java elements. |
| */ |
| class JavaReplaceWithEditionActionImpl extends JavaHistoryActionImpl { |
| |
| private static final String BUNDLE_NAME= "org.eclipse.jdt.internal.ui.compare.ReplaceWithEditionAction"; //$NON-NLS-1$ |
| |
| protected boolean fPrevious= false; |
| |
| |
| JavaReplaceWithEditionActionImpl(boolean previous) { |
| super(true); |
| fPrevious= previous; |
| } |
| |
| public void run(ISelection selection) { |
| |
| String errorTitle= CompareMessages.ReplaceFromHistory_title; |
| String errorMessage= CompareMessages.ReplaceFromHistory_internalErrorMessage; |
| Shell shell= getShell(); |
| |
| IMember input= getEditionElement(selection); |
| if (input == null) { |
| String invalidSelectionMessage= CompareMessages.ReplaceFromHistory_invalidSelectionMessage; |
| MessageDialog.openInformation(shell, errorTitle, invalidSelectionMessage); |
| return; |
| } |
| |
| IFile file= getFile(input); |
| if (file == null) { |
| MessageDialog.openError(shell, errorTitle, errorMessage); |
| return; |
| } |
| |
| |
| IStatus status= Resources.makeCommittable(file, shell); |
| if (!status.isOK()) { |
| return; |
| } |
| |
| boolean inEditor= beingEdited(file); |
| |
| // get the document where to insert the text |
| IPath path= file.getFullPath(); |
| ITextFileBufferManager bufferManager= FileBuffers.getTextFileBufferManager(); |
| ITextFileBuffer textFileBuffer= null; |
| try { |
| bufferManager.connect(path, null); |
| textFileBuffer= bufferManager.getTextFileBuffer(path); |
| IDocument document= textFileBuffer.getDocument(); |
| |
| ResourceBundle bundle= ResourceBundle.getBundle(BUNDLE_NAME); |
| EditionSelectionDialog d= new EditionSelectionDialog(shell, bundle); |
| d.setHelpContextId(IJavaHelpContextIds.REPLACE_ELEMENT_WITH_HISTORY_DIALOG); |
| |
| ITypedElement target= new JavaTextBufferNode(file, document, inEditor); |
| |
| ITypedElement[] editions= buildEditions(target, file); |
| |
| ITypedElement ti= null; |
| if (fPrevious) { |
| ti= d.selectPreviousEdition(target, editions, input); |
| if (ti == null) { |
| MessageDialog.openInformation(shell, errorTitle, CompareMessages.ReplaceFromHistory_parsingErrorMessage); |
| return; |
| } |
| } else |
| ti= d.selectEdition(target, editions, input); |
| |
| if (ti instanceof IStreamContentAccessor) { |
| |
| String content= JavaCompareUtilities.readString((IStreamContentAccessor)ti); |
| String newContent= trimTextBlock(content, TextUtilities.getDefaultLineDelimiter(document), input.getJavaProject()); |
| if (newContent == null) { |
| MessageDialog.openError(shell, errorTitle, errorMessage); |
| return; |
| } |
| |
| ICompilationUnit compilationUnit= input.getCompilationUnit(); |
| CompilationUnit root= parsePartialCompilationUnit(compilationUnit); |
| |
| |
| final ISourceRange nameRange= input.getNameRange(); |
| // workaround for bug in getNameRange(): for AnnotationMembers length is negative |
| int length= nameRange.getLength(); |
| if (length < 0) |
| length= 1; |
| ASTNode node2= NodeFinder.perform(root, new SourceRange(nameRange.getOffset(), length)); |
| ASTNode node= ASTNodes.getParent(node2, BodyDeclaration.class); |
| if (node == null) |
| node= ASTNodes.getParent(node2, AnnotationTypeDeclaration.class); |
| if (node == null) |
| node= ASTNodes.getParent(node2, EnumDeclaration.class); |
| |
| //ASTNode node= getBodyContainer(root, input); |
| if (node == null) { |
| MessageDialog.openError(shell, errorTitle, errorMessage); |
| return; |
| } |
| |
| ASTRewrite rewriter= ASTRewrite.create(root.getAST()); |
| rewriter.replace(node, rewriter.createStringPlaceholder(newContent, node.getNodeType()), null); |
| |
| if (inEditor) { |
| JavaEditor je= getEditor(file); |
| if (je != null) |
| je.setFocus(); |
| } |
| |
| Map options= null; |
| IJavaProject javaProject= compilationUnit.getJavaProject(); |
| if (javaProject != null) |
| options= javaProject.getOptions(true); |
| applyChanges(rewriter, document, textFileBuffer, shell, inEditor, options); |
| |
| } |
| } catch(InvocationTargetException ex) { |
| ExceptionHandler.handle(ex, shell, errorTitle, errorMessage); |
| |
| } catch(InterruptedException ex) { |
| // shouldn't be called because is not cancelable |
| Assert.isTrue(false); |
| |
| } catch(CoreException ex) { |
| ExceptionHandler.handle(ex, shell, errorTitle, errorMessage); |
| |
| } finally { |
| try { |
| if (textFileBuffer != null) |
| bufferManager.disconnect(path, null); |
| } catch (CoreException e) { |
| JavaPlugin.log(e); |
| } |
| } |
| } |
| |
| protected ITypedElement[] buildEditions(ITypedElement target, IFile file, IFileState[] states) { |
| ITypedElement[] editions= new ITypedElement[states.length+1]; |
| editions[0]= new ResourceNode(file); |
| for (int i= 0; i < states.length; i++) |
| editions[i+1]= new HistoryItem(target, states[i]); |
| return editions; |
| } |
| } |