| /******************************************************************************* |
| * Copyright (c) 2007 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.wst.xml.ui.internal; |
| |
| import java.util.LinkedList; |
| |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.TypedPosition; |
| import org.eclipse.jface.text.formatter.ContextBasedFormattingStrategy; |
| import org.eclipse.jface.text.formatter.FormattingContextProperties; |
| import org.eclipse.jface.text.formatter.IFormattingContext; |
| import org.eclipse.jface.text.formatter.IFormattingStrategyExtension; |
| import org.eclipse.text.edits.TextEdit; |
| import org.eclipse.wst.sse.core.StructuredModelManager; |
| import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel; |
| import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument; |
| import org.eclipse.wst.sse.ui.internal.Logger; |
| import org.eclipse.wst.xml.core.internal.formatter.DefaultXMLPartitionFormatter; |
| |
| public class XMLFormattingStrategy extends ContextBasedFormattingStrategy implements IFormattingStrategyExtension { |
| |
| /** Documents to be formatted by this strategy */ |
| private final LinkedList fDocuments = new LinkedList(); |
| /** Partitions to be formatted by this strategy */ |
| private final LinkedList fPartitions = new LinkedList(); |
| private IRegion fRegion; |
| private DefaultXMLPartitionFormatter formatter = new DefaultXMLPartitionFormatter(); |
| |
| /** |
| * @param formatProcessor |
| */ |
| public XMLFormattingStrategy() { |
| super(); |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.formatter.ContextBasedFormattingStrategy#format() |
| */ |
| public void format() { |
| super.format(); |
| |
| final IDocument document = (IDocument) fDocuments.removeFirst(); |
| final TypedPosition partition = (TypedPosition) fPartitions.removeFirst(); |
| |
| if (document != null && partition != null && fRegion != null) { |
| try { |
| if (document instanceof IStructuredDocument) { |
| IStructuredModel model = StructuredModelManager.getModelManager().getModelForEdit((IStructuredDocument) document); |
| if (model != null) { |
| try { |
| TextEdit edit = formatter.format(model, fRegion.getOffset(), fRegion.getLength()); |
| if (edit != null) { |
| try { |
| model.aboutToChangeModel(); |
| edit.apply(document); |
| } |
| finally { |
| model.changedModel(); |
| } |
| } |
| } |
| finally { |
| model.releaseFromEdit(); |
| } |
| } |
| } |
| } |
| catch (BadLocationException e) { |
| // log for now, unless we find reason not to |
| Logger.log(Logger.INFO, e.getMessage()); |
| } |
| } |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.formatter.ContextBasedFormattingStrategy#formatterStarts(org.eclipse.jface.text.formatter.IFormattingContext) |
| */ |
| public void formatterStarts(final IFormattingContext context) { |
| super.formatterStarts(context); |
| |
| fPartitions.addLast(context.getProperty(FormattingContextProperties.CONTEXT_PARTITION)); |
| fDocuments.addLast(context.getProperty(FormattingContextProperties.CONTEXT_MEDIUM)); |
| fRegion = (IRegion) context.getProperty(FormattingContextProperties.CONTEXT_REGION); |
| } |
| |
| /* |
| * @see org.eclipse.jface.text.formatter.ContextBasedFormattingStrategy#formatterStops() |
| */ |
| public void formatterStops() { |
| super.formatterStops(); |
| |
| fPartitions.clear(); |
| fDocuments.clear(); |
| } |
| } |