bundles/org.eclipse.wst.html.core/src/org/eclipse/wst/html/core/internal/text/StructuredTextPartitionerForHTML.java - sourceediting/webtools.sourceediting - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004 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.text;

 import java.util.Locale;

 import org.eclipse.jface.text.IDocumentPartitioner;
 import org.eclipse.wst.css.core.internal.provisional.text.ICSSPartitionTypes;
 import org.eclipse.wst.html.core.internal.provisional.HTML40Namespace;
 import org.eclipse.wst.html.core.internal.provisional.text.IHTMLPartitionTypes;
 import org.eclipse.wst.sse.core.internal.parser.ForeignRegion;
 import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
 import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredTextPartitioner;
 import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion;
 import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionList;
 import org.eclipse.wst.sse.core.internal.text.rules.IStructuredTypedRegion;
 import org.eclipse.wst.sse.core.internal.util.ScriptLanguageKeys;
 import org.eclipse.wst.sse.core.internal.util.StringUtils;
 import org.eclipse.wst.xml.core.internal.regions.DOMRegionContext;
 import org.eclipse.wst.xml.core.internal.text.rules.StructuredTextPartitionerForXML;

 /**
  * Document partitioner for HTML. Client-side scripts of type JavaScript are
  * reported as ST_SCRIPT, all others for <script language="foo" type="foo2">
  * as SCRIPT.language:FOO and SCRIPT.type:FOO2.
  */
 public class StructuredTextPartitionerForHTML extends StructuredTextPartitionerForXML implements IStructuredTextPartitioner {

 	private final static String[] configuredContentTypes = new String[]{IHTMLPartitionTypes.HTML_DEFAULT, IHTMLPartitionTypes.HTML_DECLARATION, IHTMLPartitionTypes.HTML_COMMENT, IHTMLPartitionTypes.SCRIPT, ICSSPartitionTypes.STYLE};

 	public static final String JAVASCRIPT = "javascript"; //$NON-NLS-1$
 	public static final String JAVASCRIPT_APPLICATION = "application/x-javascript"; //$NON-NLS-1$

 	public StructuredTextPartitionerForHTML() {
 		super();
 	}

 	public IStructuredTypedRegion createPartition(int offset, int length, String type) {
 		if (type == IHTMLPartitionTypes.SCRIPT) {
 			IStructuredDocumentRegion node = fStructuredDocument.getRegionAtCharacterOffset(offset);
 			if (node != null) {
 				String stype = getScriptingPartitionType(node);
 				return super.createPartition(offset, length, stype);
 			}
 		}
 		return super.createPartition(offset, length, type);
 	}

 	protected void setInternalPartition(int offset, int length, String type) {
 		String localType = type;
 		if (type == IHTMLPartitionTypes.SCRIPT) {
 			IStructuredDocumentRegion node = fStructuredDocument.getRegionAtCharacterOffset(offset);
 			if (node != null) {
 				localType = getScriptingPartitionType(node);
 			}
 		}
 		super.setInternalPartition(offset, length, localType);
 	}

 	private String getScriptingPartitionType(IStructuredDocumentRegion coreNode) {
 		String language = null;
 		String type = null;
 		String result = IHTMLPartitionTypes.SCRIPT;
 		IStructuredDocumentRegion node = coreNode;
 		ITextRegion attrNameRegion = null;
 		while (node != null && isValidScriptingRegionType(node.getType())) {
 			node = node.getPrevious();
 		}

 		ITextRegionList regions = node.getRegions();
 		if (regions.size() > 4 && regions.get(1).getType() == DOMRegionContext.XML_TAG_NAME) {
 			ITextRegion potentialLanguageRegion = regions.get(1);
 			String potentialLanguageString = node.getText(potentialLanguageRegion);
 			if (potentialLanguageString.equalsIgnoreCase(HTML40Namespace.ElementName.SCRIPT)) {
 				for (int i = 0; i < regions.size(); i++) {
 					ITextRegion region = regions.get(i);
 					String regionType = region.getType();
 					if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_NAME)
 						attrNameRegion = region;
 					else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE) {
 						String attrName = node.getText(attrNameRegion);
 						if (attrName.equalsIgnoreCase(HTML40Namespace.ATTR_NAME_LANGUAGE))
 							language = StringUtils.strip(node.getText(region));
 						else if (attrName.equalsIgnoreCase(HTML40Namespace.ATTR_NAME_TYPE)) {
 							type = StringUtils.strip(node.getText(region));
 							break;
 						}
 						attrNameRegion = null;
 					}
 				}
 			}
 		}
 		if (type != null)
 			result = lookupScriptType(type);
 		else if (language != null)
 			result = lookupScriptLanguage(language);
 		return result;
 	}

 	private boolean isValidScriptingRegionType(String type) {
 		return type == DOMRegionContext.BLOCK_TEXT || type == DOMRegionContext.XML_CDATA_OPEN || type == DOMRegionContext.XML_CDATA_TEXT || type == DOMRegionContext.XML_CDATA_CLOSE;
 	}

 	protected void initLegalContentTypes() {
 		fSupportedTypes = getConfiguredContentTypes();
 	}

 	private String lookupScriptType(String type) {
 		for (int i = 0; i < ScriptLanguageKeys.JAVASCRIPT_MIME_TYPE_KEYS.length; i++)
 			if (ScriptLanguageKeys.JAVASCRIPT_MIME_TYPE_KEYS[i].equalsIgnoreCase(type))
 				return IHTMLPartitionTypes.SCRIPT;
 		return IHTMLPartitionTypes.SCRIPT + ".type." + type.toUpperCase(Locale.ENGLISH); //$NON-NLS-1$
 	}

 	private String lookupScriptLanguage(String language) {
 		for (int i = 0; i < ScriptLanguageKeys.JAVASCRIPT_LANGUAGE_KEYS.length; i++)
 			if (ScriptLanguageKeys.JAVASCRIPT_LANGUAGE_KEYS[i].equalsIgnoreCase(language))
 				return IHTMLPartitionTypes.SCRIPT;
 		return IHTMLPartitionTypes.SCRIPT + ".language." + language.toUpperCase(Locale.ENGLISH); //$NON-NLS-1$
 	}

 	public String getPartitionType(ITextRegion region, int offset) {
 		String result = null;
 		if (region.getType() == DOMRegionContext.XML_COMMENT_TEXT || region.getType() == DOMRegionContext.XML_COMMENT_OPEN)
 			result = IHTMLPartitionTypes.HTML_COMMENT;
 		else if (region.getType() == DOMRegionContext.XML_DOCTYPE_DECLARATION || region.getType() == DOMRegionContext.XML_DECLARATION_OPEN)
 			result = IHTMLPartitionTypes.HTML_DECLARATION;
 		else
 			result = super.getPartitionType(region, offset);
 		return result;
 	}

 	public String getPartitionTypeBetween(IStructuredDocumentRegion previousNode, IStructuredDocumentRegion nextNode) {

 		ITextRegion previousStartTagNameRegion = null;
 		ITextRegion nextEndTagNameRegion = null;

 		ITextRegion[] regions = previousNode.getRegions().toArray();
 		for (int i = 0; i < regions.length; i++) {
 			if(regions[i].getType() == DOMRegionContext.XML_TAG_NAME) {
 				previousStartTagNameRegion = regions[i];
 				break;
 			}
 		}
 		regions = nextNode.getRegions().toArray();
 		for (int i = 0; i < regions.length; i++) {
 			if(regions[i].getType() == DOMRegionContext.XML_TAG_NAME) {
 				nextEndTagNameRegion = regions[i];
 				break;
 			}
 		}

 		if(previousStartTagNameRegion == null || nextEndTagNameRegion == null)
 			return IHTMLPartitionTypes.HTML_DEFAULT;

 		String name1 = previousNode.getText(previousStartTagNameRegion);
 		String name2 = nextNode.getText(nextEndTagNameRegion);
 		if (name1.equalsIgnoreCase(HTML40Namespace.ElementName.SCRIPT) && name2.equalsIgnoreCase(HTML40Namespace.ElementName.SCRIPT))
 			//			return ST_SCRIPT;
 			return getScriptingPartitionType(fStructuredDocument.getRegionAtCharacterOffset(previousNode.getStartOffset(previousStartTagNameRegion)));
 		else if (name1.equalsIgnoreCase(HTML40Namespace.ElementName.STYLE) && name2.equalsIgnoreCase(HTML40Namespace.ElementName.STYLE))
 			return ICSSPartitionTypes.STYLE;
 		return super.getPartitionTypeBetween(previousNode, nextNode);
 	}


 	protected String getPartitionType(ForeignRegion region, int offset) {
 		String tagname = region.getSurroundingTag();
 		String result = null;
 		// tagname should not be null,
 		// but see https://w3.opensource.ibm.com/bugzilla/show_bug.cgi?id=4911
 		if (tagname == null) {
 			result = getUnknown();
 		}
 		else if (tagname.equalsIgnoreCase(HTML40Namespace.ElementName.SCRIPT))
 			result = IHTMLPartitionTypes.SCRIPT;
 		else if (tagname.equalsIgnoreCase(HTML40Namespace.ElementName.STYLE))
 			result = ICSSPartitionTypes.STYLE;
 		else
 			result = super.getPartitionType(region, offset);

 		return result;
 	}

 	public String getDefaultPartitionType() {
 		return IHTMLPartitionTypes.HTML_DEFAULT;
 	}

 	public IDocumentPartitioner newInstance() {
 		return new StructuredTextPartitionerForHTML();
 	}

 	/**
 	 * @return
 	 */
 	public static String[] getConfiguredContentTypes() {
 		return configuredContentTypes;
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2004 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.text;

	import java.util.Locale;

	import org.eclipse.jface.text.IDocumentPartitioner;
	import org.eclipse.wst.css.core.internal.provisional.text.ICSSPartitionTypes;
	import org.eclipse.wst.html.core.internal.provisional.HTML40Namespace;
	import org.eclipse.wst.html.core.internal.provisional.text.IHTMLPartitionTypes;
	import org.eclipse.wst.sse.core.internal.parser.ForeignRegion;
	import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
	import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredTextPartitioner;
	import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion;
	import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionList;
	import org.eclipse.wst.sse.core.internal.text.rules.IStructuredTypedRegion;
	import org.eclipse.wst.sse.core.internal.util.ScriptLanguageKeys;
	import org.eclipse.wst.sse.core.internal.util.StringUtils;
	import org.eclipse.wst.xml.core.internal.regions.DOMRegionContext;
	import org.eclipse.wst.xml.core.internal.text.rules.StructuredTextPartitionerForXML;

	/**
	* Document partitioner for HTML. Client-side scripts of type JavaScript are
	* reported as ST_SCRIPT, all others for <script language="foo" type="foo2">
	* as SCRIPT.language:FOO and SCRIPT.type:FOO2.
	*/
	public class StructuredTextPartitionerForHTML extends StructuredTextPartitionerForXML implements IStructuredTextPartitioner {

	private final static String[] configuredContentTypes = new String[]{IHTMLPartitionTypes.HTML_DEFAULT, IHTMLPartitionTypes.HTML_DECLARATION, IHTMLPartitionTypes.HTML_COMMENT, IHTMLPartitionTypes.SCRIPT, ICSSPartitionTypes.STYLE};

	public static final String JAVASCRIPT = "javascript"; //$NON-NLS-1$
	public static final String JAVASCRIPT_APPLICATION = "application/x-javascript"; //$NON-NLS-1$

	public StructuredTextPartitionerForHTML() {
	super();
	}

	public IStructuredTypedRegion createPartition(int offset, int length, String type) {
	if (type == IHTMLPartitionTypes.SCRIPT) {
	IStructuredDocumentRegion node = fStructuredDocument.getRegionAtCharacterOffset(offset);
	if (node != null) {
	String stype = getScriptingPartitionType(node);
	return super.createPartition(offset, length, stype);
	}
	}
	return super.createPartition(offset, length, type);
	}

	protected void setInternalPartition(int offset, int length, String type) {
	String localType = type;
	if (type == IHTMLPartitionTypes.SCRIPT) {
	IStructuredDocumentRegion node = fStructuredDocument.getRegionAtCharacterOffset(offset);
	if (node != null) {
	localType = getScriptingPartitionType(node);
	}
	}
	super.setInternalPartition(offset, length, localType);
	}

	private String getScriptingPartitionType(IStructuredDocumentRegion coreNode) {
	String language = null;
	String type = null;
	String result = IHTMLPartitionTypes.SCRIPT;
	IStructuredDocumentRegion node = coreNode;
	ITextRegion attrNameRegion = null;
	while (node != null && isValidScriptingRegionType(node.getType())) {
	node = node.getPrevious();
	}

	ITextRegionList regions = node.getRegions();
	if (regions.size() > 4 && regions.get(1).getType() == DOMRegionContext.XML_TAG_NAME) {
	ITextRegion potentialLanguageRegion = regions.get(1);
	String potentialLanguageString = node.getText(potentialLanguageRegion);
	if (potentialLanguageString.equalsIgnoreCase(HTML40Namespace.ElementName.SCRIPT)) {
	for (int i = 0; i < regions.size(); i++) {
	ITextRegion region = regions.get(i);
	String regionType = region.getType();
	if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_NAME)
	attrNameRegion = region;
	else if (regionType == DOMRegionContext.XML_TAG_ATTRIBUTE_VALUE) {
	String attrName = node.getText(attrNameRegion);
	if (attrName.equalsIgnoreCase(HTML40Namespace.ATTR_NAME_LANGUAGE))
	language = StringUtils.strip(node.getText(region));
	else if (attrName.equalsIgnoreCase(HTML40Namespace.ATTR_NAME_TYPE)) {
	type = StringUtils.strip(node.getText(region));
	break;
	}
	attrNameRegion = null;
	}
	}
	}
	}
	if (type != null)
	result = lookupScriptType(type);
	else if (language != null)
	result = lookupScriptLanguage(language);
	return result;
	}

	private boolean isValidScriptingRegionType(String type) {
	return type == DOMRegionContext.BLOCK_TEXT \|\| type == DOMRegionContext.XML_CDATA_OPEN \|\| type == DOMRegionContext.XML_CDATA_TEXT \|\| type == DOMRegionContext.XML_CDATA_CLOSE;
	}

	protected void initLegalContentTypes() {
	fSupportedTypes = getConfiguredContentTypes();
	}

	private String lookupScriptType(String type) {
	for (int i = 0; i < ScriptLanguageKeys.JAVASCRIPT_MIME_TYPE_KEYS.length; i++)
	if (ScriptLanguageKeys.JAVASCRIPT_MIME_TYPE_KEYS[i].equalsIgnoreCase(type))
	return IHTMLPartitionTypes.SCRIPT;
	return IHTMLPartitionTypes.SCRIPT + ".type." + type.toUpperCase(Locale.ENGLISH); //$NON-NLS-1$
	}

	private String lookupScriptLanguage(String language) {
	for (int i = 0; i < ScriptLanguageKeys.JAVASCRIPT_LANGUAGE_KEYS.length; i++)
	if (ScriptLanguageKeys.JAVASCRIPT_LANGUAGE_KEYS[i].equalsIgnoreCase(language))
	return IHTMLPartitionTypes.SCRIPT;
	return IHTMLPartitionTypes.SCRIPT + ".language." + language.toUpperCase(Locale.ENGLISH); //$NON-NLS-1$
	}

	public String getPartitionType(ITextRegion region, int offset) {
	String result = null;
	if (region.getType() == DOMRegionContext.XML_COMMENT_TEXT \|\| region.getType() == DOMRegionContext.XML_COMMENT_OPEN)
	result = IHTMLPartitionTypes.HTML_COMMENT;
	else if (region.getType() == DOMRegionContext.XML_DOCTYPE_DECLARATION \|\| region.getType() == DOMRegionContext.XML_DECLARATION_OPEN)
	result = IHTMLPartitionTypes.HTML_DECLARATION;
	else
	result = super.getPartitionType(region, offset);
	return result;
	}

	public String getPartitionTypeBetween(IStructuredDocumentRegion previousNode, IStructuredDocumentRegion nextNode) {

	ITextRegion previousStartTagNameRegion = null;
	ITextRegion nextEndTagNameRegion = null;

	ITextRegion[] regions = previousNode.getRegions().toArray();
	for (int i = 0; i < regions.length; i++) {
	if(regions[i].getType() == DOMRegionContext.XML_TAG_NAME) {
	previousStartTagNameRegion = regions[i];
	break;
	}
	}
	regions = nextNode.getRegions().toArray();
	for (int i = 0; i < regions.length; i++) {
	if(regions[i].getType() == DOMRegionContext.XML_TAG_NAME) {
	nextEndTagNameRegion = regions[i];
	break;
	}
	}

	if(previousStartTagNameRegion == null \|\| nextEndTagNameRegion == null)
	return IHTMLPartitionTypes.HTML_DEFAULT;

	String name1 = previousNode.getText(previousStartTagNameRegion);
	String name2 = nextNode.getText(nextEndTagNameRegion);
	if (name1.equalsIgnoreCase(HTML40Namespace.ElementName.SCRIPT) && name2.equalsIgnoreCase(HTML40Namespace.ElementName.SCRIPT))
	// return ST_SCRIPT;
	return getScriptingPartitionType(fStructuredDocument.getRegionAtCharacterOffset(previousNode.getStartOffset(previousStartTagNameRegion)));
	else if (name1.equalsIgnoreCase(HTML40Namespace.ElementName.STYLE) && name2.equalsIgnoreCase(HTML40Namespace.ElementName.STYLE))
	return ICSSPartitionTypes.STYLE;
	return super.getPartitionTypeBetween(previousNode, nextNode);
	}


	protected String getPartitionType(ForeignRegion region, int offset) {
	String tagname = region.getSurroundingTag();
	String result = null;
	// tagname should not be null,
	// but see https://w3.opensource.ibm.com/bugzilla/show_bug.cgi?id=4911
	if (tagname == null) {
	result = getUnknown();
	}
	else if (tagname.equalsIgnoreCase(HTML40Namespace.ElementName.SCRIPT))
	result = IHTMLPartitionTypes.SCRIPT;
	else if (tagname.equalsIgnoreCase(HTML40Namespace.ElementName.STYLE))
	result = ICSSPartitionTypes.STYLE;
	else
	result = super.getPartitionType(region, offset);

	return result;
	}

	public String getDefaultPartitionType() {
	return IHTMLPartitionTypes.HTML_DEFAULT;
	}

	public IDocumentPartitioner newInstance() {
	return new StructuredTextPartitionerForHTML();
	}

	/**
	* @return
	*/
	public static String[] getConfiguredContentTypes() {
	return configuredContentTypes;
	}

	}