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/*******************************************************************************
* Copyright (c) 2001, 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
* Jens Lukowski/Innoopract - initial renaming/restructuring
*
*******************************************************************************/
package org.eclipse.wst.xml.ui;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Vector;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.Preferences;
import org.eclipse.jface.text.IAutoEditStrategy;
import org.eclipse.jface.text.contentassist.IContentAssistProcessor;
import org.eclipse.jface.text.formatter.IContentFormatter;
import org.eclipse.jface.text.formatter.MultiPassContentFormatter;
import org.eclipse.jface.text.source.ISourceViewer;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.wst.sse.core.text.IStructuredPartitions;
import org.eclipse.wst.sse.ui.StructuredTextViewerConfiguration;
import org.eclipse.wst.sse.ui.internal.format.StructuredFormattingStrategy;
import org.eclipse.wst.sse.ui.internal.provisional.style.LineStyleProvider;
import org.eclipse.wst.xml.core.internal.XMLCorePlugin;
import org.eclipse.wst.xml.core.internal.preferences.XMLCorePreferenceNames;
import org.eclipse.wst.xml.core.internal.provisional.contenttype.ContentTypeIdForXML;
import org.eclipse.wst.xml.core.internal.provisional.format.FormatProcessorXML;
import org.eclipse.wst.xml.core.internal.text.rules.StructuredTextPartitionerForXML;
import org.eclipse.wst.xml.core.text.IXMLPartitions;
import org.eclipse.wst.xml.ui.internal.autoedit.AutoEditStrategyForTabs;
import org.eclipse.wst.xml.ui.internal.contentassist.NoRegionContentAssistProcessor;
import org.eclipse.wst.xml.ui.internal.contentassist.XMLContentAssistProcessor;
import org.eclipse.wst.xml.ui.internal.contentoutline.JFaceNodeLabelProvider;
import org.eclipse.wst.xml.ui.internal.style.LineStyleProviderForXML;
import org.w3c.dom.Node;
/**
* Configuration for a source viewer which shows XML content.
* <p>
* Clients can subclass and override just those methods which must be specific
* to their needs.
* </p>
*
* @see org.eclipse.wst.sse.ui.StructuredTextViewerConfiguration
* @since 1.0
*/
public class StructuredTextViewerConfigurationXML extends StructuredTextViewerConfiguration {
/*
* One instance per configuration because not sourceviewer-specific and
* it's a String array
*/
private String[] fConfiguredContentTypes;
/*
* One instance per configuration
*/
private LineStyleProvider fLineStyleProviderForXML;
private ILabelProvider fStatusLineLabelProvider;
/**
* Create new instance of StructuredTextViewerConfigurationXML
*/
public StructuredTextViewerConfigurationXML() {
// Must have empty constructor to createExecutableExtension
super();
}
public IAutoEditStrategy[] getAutoEditStrategies(ISourceViewer sourceViewer, String contentType) {
List allStrategies = new ArrayList(0);
IAutoEditStrategy[] superStrategies = super.getAutoEditStrategies(sourceViewer, contentType);
for (int i = 0; i < superStrategies.length; i++) {
allStrategies.add(superStrategies[i]);
}
// be sure this is last, so it can modify any results form previous
// commands that might on on same partiion type.
// add auto edit strategy that handles when tab key is pressed
allStrategies.add(new AutoEditStrategyForTabs());
return (IAutoEditStrategy[]) allStrategies.toArray(new IAutoEditStrategy[allStrategies.size()]);
}
public String[] getConfiguredContentTypes(ISourceViewer sourceViewer) {
if (fConfiguredContentTypes == null) {
String[] xmlTypes = StructuredTextPartitionerForXML.getConfiguredContentTypes();
fConfiguredContentTypes = new String[xmlTypes.length + 2];
fConfiguredContentTypes[0] = IStructuredPartitions.DEFAULT_PARTITION;
fConfiguredContentTypes[1] = IStructuredPartitions.UNKNOWN_PARTITION;
int index = 0;
System.arraycopy(xmlTypes, 0, fConfiguredContentTypes, index += 2, xmlTypes.length);
}
return fConfiguredContentTypes;
}
protected IContentAssistProcessor[] getContentAssistProcessors(ISourceViewer sourceViewer, String partitionType) {
IContentAssistProcessor[] processors = null;
if ((partitionType == IStructuredPartitions.DEFAULT_PARTITION) || (partitionType == IXMLPartitions.XML_DEFAULT)) {
processors = new IContentAssistProcessor[]{new XMLContentAssistProcessor()};
}
else if (partitionType == IStructuredPartitions.UNKNOWN_PARTITION) {
processors = new IContentAssistProcessor[]{new NoRegionContentAssistProcessor()};
}
return processors;
}
public IContentFormatter getContentFormatter(ISourceViewer sourceViewer) {
final MultiPassContentFormatter formatter = new MultiPassContentFormatter(getConfiguredDocumentPartitioning(sourceViewer), IXMLPartitions.XML_DEFAULT);
formatter.setMasterStrategy(new StructuredFormattingStrategy(new FormatProcessorXML()));
return formatter;
}
public String[] getIndentPrefixes(ISourceViewer sourceViewer, String contentType) {
Vector vector = new Vector();
// prefix[0] is either '\t' or ' ' x tabWidth, depending on preference
Preferences preferences = XMLCorePlugin.getDefault().getPluginPreferences();
int indentationWidth = preferences.getInt(XMLCorePreferenceNames.INDENTATION_SIZE);
String indentCharPref = preferences.getString(XMLCorePreferenceNames.INDENTATION_CHAR);
boolean useSpaces = XMLCorePreferenceNames.SPACE.equals(indentCharPref);
for (int i = 0; i <= indentationWidth; i++) {
StringBuffer prefix = new StringBuffer();
boolean appendTab = false;
if (useSpaces) {
for (int j = 0; j + i < indentationWidth; j++) {
prefix.append(' ');
}
if (i != 0) {
appendTab = true;
}
}
else {
for (int j = 0; j < i; j++) {
prefix.append(' ');
}
if (i != indentationWidth) {
appendTab = true;
}
}
if (appendTab) {
prefix.append('\t');
vector.add(prefix.toString());
// remove the tab so that indentation - tab is also an indent
// prefix
prefix.deleteCharAt(prefix.length() - 1);
}
vector.add(prefix.toString());
}
vector.add(""); //$NON-NLS-1$
return (String[]) vector.toArray(new String[vector.size()]);
}
public LineStyleProvider[] getLineStyleProviders(ISourceViewer sourceViewer, String partitionType) {
LineStyleProvider[] providers = null;
if ((partitionType == IXMLPartitions.XML_DEFAULT) || (partitionType == IXMLPartitions.XML_CDATA) || (partitionType == IXMLPartitions.XML_COMMENT) || (partitionType == IXMLPartitions.XML_DECLARATION) || (partitionType == IXMLPartitions.XML_PI)) {
providers = new LineStyleProvider[]{getLineStyleProviderForXML()};
}
return providers;
}
private LineStyleProvider getLineStyleProviderForXML() {
if (fLineStyleProviderForXML == null) {
fLineStyleProviderForXML = new LineStyleProviderForXML();
}
return fLineStyleProviderForXML;
}
public ILabelProvider getStatusLineLabelProvider(ISourceViewer sourceViewer) {
if (fStatusLineLabelProvider == null) {
fStatusLineLabelProvider = new JFaceNodeLabelProvider() {
public String getText(Object element) {
if (element == null)
return null;
StringBuffer s = new StringBuffer();
Node node = (Node) element;
while (node != null) {
if (node.getNodeType() != Node.DOCUMENT_NODE) {
s.insert(0, super.getText(node));
}
node = node.getParentNode();
if (node != null && node.getNodeType() != Node.DOCUMENT_NODE) {
s.insert(0, IPath.SEPARATOR);
}
}
return s.toString();
}
};
}
return fStatusLineLabelProvider;
}
protected Map getHyperlinkDetectorTargets(ISourceViewer sourceViewer) {
Map targets = super.getHyperlinkDetectorTargets(sourceViewer);
targets.put(ContentTypeIdForXML.ContentTypeID_XML, null);
return targets;
}
}
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