/*******************************************************************************
* Copyright (c) 2004, 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.wst.html.core.internal.encoding;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.core.resources.IFile;
import org.eclipse.jface.text.IDocumentPartitioner;
import org.eclipse.wst.html.core.internal.contenttype.EncodingGuesser;
import org.eclipse.wst.html.core.internal.document.HTMLDocumentTypeAdapterFactory;
import org.eclipse.wst.html.core.internal.document.HTMLModelParserAdapterFactory;
import org.eclipse.wst.html.core.internal.htmlcss.HTMLStyleSelectorAdapterFactory;
import org.eclipse.wst.html.core.internal.htmlcss.StyleAdapterFactory;
import org.eclipse.wst.html.core.internal.modelquery.ModelQueryAdapterFactoryForHTML;
import org.eclipse.wst.html.core.internal.provisional.contenttype.ContentTypeIdForHTML;
import org.eclipse.wst.html.core.internal.text.StructuredTextPartitionerForHTML;
import org.eclipse.wst.sse.core.internal.PropagatingAdapter;
import org.eclipse.wst.sse.core.internal.document.AbstractDocumentLoader;
import org.eclipse.wst.sse.core.internal.document.IDocumentCharsetDetector;
import org.eclipse.wst.sse.core.internal.document.IDocumentLoader;
import org.eclipse.wst.sse.core.internal.document.StructuredDocumentFactory;
import org.eclipse.wst.sse.core.internal.encoding.ContentTypeEncodingPreferences;
import org.eclipse.wst.sse.core.internal.ltk.parser.BlockMarker;
import org.eclipse.wst.sse.core.internal.ltk.parser.RegionParser;
import org.eclipse.wst.sse.core.internal.provisional.INodeAdapterFactory;
import org.eclipse.wst.sse.core.internal.provisional.INodeNotifier;
import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel;
import org.eclipse.wst.sse.core.internal.provisional.document.IEncodedDocument;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument;
import org.eclipse.wst.sse.core.internal.text.BasicStructuredDocument;
import org.eclipse.wst.xml.core.internal.parser.XMLSourceParser;
import org.eclipse.wst.xml.core.internal.parser.XMLStructuredDocumentReParser;
import org.eclipse.wst.xml.core.internal.propagate.PropagatingAdapterFactoryImpl;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel;
import org.eclipse.wst.xml.core.internal.regions.DOMRegionContext;
public class HTMLDocumentLoader extends AbstractDocumentLoader {
public HTMLDocumentLoader() {
super();
}
/**
* Convenience method to add tag names using BlockMarker object
*/
protected void addHTMLishTag(XMLSourceParser parser, String tagname) {
BlockMarker bm = new BlockMarker(tagname, null, DOMRegionContext.BLOCK_TEXT, false);
parser.addBlockMarker(bm);
}
/**
* Default encoding. For HTML, there is no spec.
*/
protected String getSpecDefaultEncoding() {
return null;
}
/**
* @return java.lang.String
* @param string
* byte[]
* @param length
* int
*
* Do automatic encoding detection by guess
*/
protected String getEncodingNameByGuess(byte[] string, int length) {
final String ianaEnc = EncodingGuesser.guessEncoding(string, length);
return ianaEnc;
}
/*
* @see AbstractLoader#createNewStructuredDocument()
*/
protected IEncodedDocument newEncodedDocument() {
IStructuredDocument structuredDocument = StructuredDocumentFactory.getNewStructuredDocumentInstance(getParser());
((BasicStructuredDocument) structuredDocument).setReParser(new XMLStructuredDocumentReParser());
return structuredDocument;
}
/*
* @see IModelLoader#getParser()
*/
public RegionParser getParser() {
XMLSourceParser parser = new XMLSourceParser();
// for the "static HTML" case, we need to initialize
// Blocktags here.
addHTMLishTag(parser, "script"); //$NON-NLS-1$
addHTMLishTag(parser, "style"); //$NON-NLS-1$
return parser;
}
/**
* This method must return those factories which must be attached to the
* structuredModel before content is applied.
*/
public List getAdapterFactories() {
List result = new ArrayList();
INodeAdapterFactory factory = null;
factory = StyleAdapterFactory.getInstance();
result.add(factory);
factory = HTMLStyleSelectorAdapterFactory.getInstance();
result.add(factory);
factory = new HTMLDocumentTypeAdapterFactory();
result.add(factory);
factory = HTMLModelParserAdapterFactory.getInstance();
result.add(factory);
//
factory = new ModelQueryAdapterFactoryForHTML();
result.add(factory);
factory = new PropagatingAdapterFactoryImpl();
result.add(factory);
return result;
}
protected String getPreferredNewLineDelimiter(IFile file) {
String delimiter = ContentTypeEncodingPreferences.getPreferredNewLineDelimiter(ContentTypeIdForHTML.ContentTypeID_HTML);
if (delimiter == null)
delimiter = super.getPreferredNewLineDelimiter(file);
return delimiter;
}
public IDocumentCharsetDetector getDocumentEncodingDetector() {
if (fDocumentEncodingDetector == null) {
fDocumentEncodingDetector = new HTMLDocumentCharsetDetector();
}
return fDocumentEncodingDetector;
}
protected void preLoadAdapt(IStructuredModel structuredModel) {
// DMW: just added this preload on 8/16/2002
// I noticed the ProagatingAdapterFactory was being added,
// that that the ProagatingAdapterAdapter was not being
// preload adapted -- I'm assuing it ALWAYS has to be.
IDOMModel domModel = (IDOMModel) structuredModel;
// if there is a model in the adapter, this will adapt it to
// first node. After that the PropagatingAdater spreads over the
// children being
// created. Each time that happends, a side effect is to
// also "spread" sprecific registered adapters,
// they two can propigate is needed.
((INodeNotifier) domModel.getDocument()).getAdapterFor(PropagatingAdapter.class);
}
public IDocumentPartitioner getDefaultDocumentPartitioner() {
return new StructuredTextPartitionerForHTML();
}
public IDocumentLoader newInstance() {
return new HTMLDocumentLoader();
}
}