/*******************************************************************************
* Copyright (c) 2004, 2010 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
* David Carver (Intalion) - Cleanup Repeated Conditional check in isXMLType method
*******************************************************************************/
package org.eclipse.wst.html.core.internal.cleanup;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import org.eclipse.jface.text.BadLocationException;
import org.eclipse.text.edits.InsertEdit;
import org.eclipse.text.edits.MultiTextEdit;
import org.eclipse.wst.css.core.internal.formatter.CSSSourceFormatter;
import org.eclipse.wst.css.core.internal.formatter.CSSSourceFormatterFactory;
import org.eclipse.wst.css.core.internal.provisional.adapters.IStyleDeclarationAdapter;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSModel;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSNode;
import org.eclipse.wst.html.core.internal.Logger;
import org.eclipse.wst.html.core.internal.preferences.HTMLCorePreferenceNames;
import org.eclipse.wst.sse.core.internal.cleanup.IStructuredCleanupHandler;
import org.eclipse.wst.sse.core.internal.provisional.INodeAdapter;
import org.eclipse.wst.sse.core.internal.provisional.INodeNotifier;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument;
import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion;
import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegion;
import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionContainer;
import org.eclipse.wst.sse.core.internal.provisional.text.ITextRegionList;
import org.eclipse.wst.sse.core.utils.StringUtils;
import org.eclipse.wst.xml.core.internal.contentmodel.CMAttributeDeclaration;
import org.eclipse.wst.xml.core.internal.contentmodel.CMElementDeclaration;
import org.eclipse.wst.xml.core.internal.contentmodel.CMNamedNodeMap;
import org.eclipse.wst.xml.core.internal.contentmodel.modelquery.ModelQuery;
import org.eclipse.wst.xml.core.internal.modelquery.ModelQueryUtil;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMAttr;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMDocument;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMElement;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMModel;
import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode;
import org.eclipse.wst.xml.core.internal.provisional.document.ISourceGenerator;
import org.eclipse.wst.xml.core.internal.regions.DOMRegionContext;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
// nakamori_TODO: check and remove CSS formatting
public class ElementNodeCleanupHandler extends AbstractNodeCleanupHandler {
/** Non-NLS strings */
protected static final String START_TAG_OPEN = "<"; //$NON-NLS-1$
protected static final String END_TAG_OPEN = "</"; //$NON-NLS-1$
protected static final String TAG_CLOSE = ">"; //$NON-NLS-1$
protected static final String EMPTY_TAG_CLOSE = "/>"; //$NON-NLS-1$
protected static final String SINGLE_QUOTES = "''"; //$NON-NLS-1$
protected static final String DOUBLE_QUOTES = "\"\""; //$NON-NLS-1$
protected static final char SINGLE_QUOTE = '\''; //$NON-NLS-1$
protected static final char DOUBLE_QUOTE = '\"'; //$NON-NLS-1$
public Node cleanup(Node node) {
IDOMNode renamedNode = (IDOMNode) cleanupChildren(node);
// call quoteAttrValue() first so it will close any unclosed attr
// quoteAttrValue() will return the new start tag if there is a
// structure change
renamedNode = quoteAttrValue(renamedNode);
// insert tag close if missing
// if node is not comment tag
// and not implicit tag
if (!((IDOMElement) renamedNode).isCommentTag() && (renamedNode.getStartStructuredDocumentRegion() != null)) {
IDOMModel structuredModel = renamedNode.getModel();
// save start offset before insertTagClose()
// or else renamedNode.getStartOffset() will be zero if
// renamedNode replaced by insertTagClose()
int startTagStartOffset = renamedNode.getStartOffset();
// for start tag
IStructuredDocumentRegion startTagStructuredDocumentRegion = renamedNode.getStartStructuredDocumentRegion();
insertTagClose(structuredModel, startTagStructuredDocumentRegion);
// update renamedNode and startTagStructuredDocumentRegion after
// insertTagClose()
renamedNode = (IDOMNode) structuredModel.getIndexedRegion(startTagStartOffset);
startTagStructuredDocumentRegion = renamedNode.getStartStructuredDocumentRegion();
// for end tag
IStructuredDocumentRegion endTagStructuredDocumentRegion = renamedNode.getEndStructuredDocumentRegion();
if (endTagStructuredDocumentRegion != startTagStructuredDocumentRegion)
insertTagClose(structuredModel, endTagStructuredDocumentRegion);
}
// call insertMissingTags() next, it will generate implicit tags if
// there are any
// insertMissingTags() will return the new missing start tag if one is
// missing
// then compress any empty element tags
// applyTagNameCase() will return the renamed node.
// The renamed/new node will be saved and returned to caller when all
// cleanup is done.
renamedNode = insertMissingTags(renamedNode);
renamedNode = compressEmptyElementTag(renamedNode);
renamedNode = insertRequiredAttrs(renamedNode);
renamedNode = applyTagNameCase(renamedNode);
applyAttrNameCase(renamedNode);
cleanupCSSAttrValue(renamedNode);
return renamedNode;
}
/**
* Checks if cleanup should modify case. Returns true case should be
* preserved, false otherwise.
*
* @param element
* @return true if element is case sensitive, false otherwise
*/
private boolean shouldPreserveCase(IDOMElement element) {
// case option can be applied to no namespace tags
return !element.isGlobalTag();
/*
* ModelQueryAdapter mqadapter = (ModelQueryAdapter)
* element.getAdapterFor(ModelQueryAdapter.class); ModelQuery mq =
* null; CMNode nodedecl = null; if (mqadapter != null) mq =
* mqadapter.getModelQuery(); if (mq != null) nodedecl =
* mq.getCMNode(node); // if a Node isn't recognized as HTML or is and
* cares about case, do not alter it // if (nodedecl == null ||
* (nodedecl instanceof HTMLCMNode && ((HTMLCMNode)
* nodedecl).shouldIgnoreCase())) if (!
* nodedecl.supports(HTMLCMProperties.SHOULD_IGNORE_CASE)) return
* false; return
* ((Boolean)cmnode.getProperty(HTMLCMProperties.SHOULD_IGNORE_CASE)).booleanValue();
*/
}
/**
* Checks if cleanup should force modifying element name to all lowercase.
*
* @param element
* @return true if cleanup should lowercase element name, false otherwise
*/
private boolean isXMLTag(IDOMElement element) {
return element.isXMLTag();
}
protected void applyAttrNameCase(IDOMNode node) {
IDOMElement element = (IDOMElement) node;
if (element.isCommentTag())
return; // do nothing
int attrNameCase = HTMLCorePreferenceNames.ASIS;
if (!shouldPreserveCase(element)) {
if (isXMLTag(element))
attrNameCase = HTMLCorePreferenceNames.LOWER;
else
attrNameCase = getCleanupPreferences().getAttrNameCase();
}
NamedNodeMap attributes = node.getAttributes();
int attributesLength = attributes.getLength();
for (int i = 0; i < attributesLength; i++) {
IDOMNode eachAttr = (IDOMNode) attributes.item(i);
if (hasNestedRegion(eachAttr.getNameRegion()))
continue;
String oldAttrName = eachAttr.getNodeName();
String newAttrName = oldAttrName;
/*
* 254961 - all HTML tag names and attribute names should be in
* English even for HTML files in other languages like Japanese or
* Turkish. English locale should be used to convert between
* uppercase and lowercase (otherwise "link" would be converted to
* Turkish "I Overdot Capital").
*/
if (attrNameCase == HTMLCorePreferenceNames.LOWER)
newAttrName = oldAttrName.toLowerCase(Locale.US);
else if (attrNameCase == HTMLCorePreferenceNames.UPPER)
newAttrName = oldAttrName.toUpperCase(Locale.US);
if (newAttrName.compareTo(oldAttrName) != 0) {
int attrNameStartOffset = eachAttr.getStartOffset();
int attrNameLength = oldAttrName.length();
IDOMModel structuredModel = node.getModel();
IStructuredDocument structuredDocument = structuredModel.getStructuredDocument();
replaceSource(structuredModel, structuredDocument, attrNameStartOffset, attrNameLength, newAttrName);
}
}
}
/**
* True if container has nested regions, meaning container is probably too
* complicated (like JSP regions) to validate with this validator.
*/
private boolean hasNestedRegion(ITextRegion container) {
if (!(container instanceof ITextRegionContainer))
return false;
ITextRegionList regions = ((ITextRegionContainer) container).getRegions();
if (regions == null)
return false;
return true;
}
protected IDOMNode applyTagNameCase(IDOMNode node) {
IDOMElement element = (IDOMElement) node;
if (element.isCommentTag())
return node; // do nothing
int tagNameCase = HTMLCorePreferenceNames.ASIS;
if (!shouldPreserveCase(element)) {
if (isXMLTag(element))
tagNameCase = HTMLCorePreferenceNames.LOWER;
else
tagNameCase = getCleanupPreferences().getTagNameCase();
}
String oldTagName = node.getNodeName();
String newTagName = oldTagName;
IDOMNode newNode = node;
/*
* 254961 - all HTML tag names and attribute names should be in
* English even for HTML files in other languages like Japanese or
* Turkish. English locale should be used to convert between uppercase
* and lowercase (otherwise "link" would be converted to Turkish "I
* Overdot Capital").
*/
if (tagNameCase == HTMLCorePreferenceNames.LOWER)
newTagName = oldTagName.toLowerCase(Locale.US);
else if (tagNameCase == HTMLCorePreferenceNames.UPPER)
newTagName = oldTagName.toUpperCase(Locale.US);
IDOMModel structuredModel = node.getModel();
IStructuredDocument structuredDocument = structuredModel.getStructuredDocument();
IStructuredDocumentRegion startTagStructuredDocumentRegion = node.getStartStructuredDocumentRegion();
if (startTagStructuredDocumentRegion != null) {
ITextRegionList regions = startTagStructuredDocumentRegion.getRegions();
if (regions != null && regions.size() > 0) {
ITextRegion startTagNameRegion = regions.get(1);
int startTagNameStartOffset = startTagStructuredDocumentRegion.getStartOffset(startTagNameRegion);
int startTagNameLength = startTagStructuredDocumentRegion.getTextEndOffset(startTagNameRegion) - startTagNameStartOffset;
if (!newTagName.equals(oldTagName))
replaceSource(structuredModel, structuredDocument, startTagNameStartOffset, startTagNameLength, newTagName);
newNode = (IDOMNode) structuredModel.getIndexedRegion(startTagNameStartOffset); // save
// new
// node
}
}
IStructuredDocumentRegion endTagStructuredDocumentRegion = node.getEndStructuredDocumentRegion();
if (endTagStructuredDocumentRegion != null) {
ITextRegionList regions = endTagStructuredDocumentRegion.getRegions();
if (regions != null && regions.size() > 0) {
ITextRegion endTagNameRegion = regions.get(1);
int endTagNameStartOffset = endTagStructuredDocumentRegion.getStartOffset(endTagNameRegion);
int endTagNameLength = endTagStructuredDocumentRegion.getTextEndOffset(endTagNameRegion) - endTagNameStartOffset;
if (startTagStructuredDocumentRegion != endTagStructuredDocumentRegion && !newTagName.equals(oldTagName))
replaceSource(structuredModel, structuredDocument, endTagNameStartOffset, endTagNameLength, newTagName);
}
}
return newNode;
}
protected Node cleanupChildren(Node node) {
Node parentNode = node;
if (node != null) {
Node childNode = node.getFirstChild();
HTMLCleanupHandlerFactory factory = HTMLCleanupHandlerFactory.getInstance();
while (childNode != null) {
// cleanup this child node
IStructuredCleanupHandler cleanupHandler = factory.createHandler(childNode, getCleanupPreferences());
childNode = cleanupHandler.cleanup(childNode);
// get new parent node
parentNode = childNode.getParentNode();
// get next child node
childNode = childNode.getNextSibling();
}
}
return parentNode;
}
/**
*/
protected void cleanupCSSAttrValue(IDOMNode node) {
if (node == null || node.getNodeType() != Node.ELEMENT_NODE)
return;
IDOMElement element = (IDOMElement) node;
if (!element.isGlobalTag())
return;
Attr attr = element.getAttributeNode("style"); //$NON-NLS-1$
if (attr == null)
return;
String value = getCSSValue(attr);
if (value == null)
return;
String oldValue = ((IDOMNode) attr).getValueSource();
if (oldValue != null && value.equals(oldValue))
return;
attr.setValue(value);
}
/**
*/
private ICSSModel getCSSModel(Attr attr) {
if (attr == null)
return null;
INodeNotifier notifier = (INodeNotifier) attr.getOwnerElement();
if (notifier == null)
return null;
INodeAdapter adapter = notifier.getAdapterFor(IStyleDeclarationAdapter.class);
if (adapter == null)
return null;
if (!(adapter instanceof IStyleDeclarationAdapter))
return null;
IStyleDeclarationAdapter styleAdapter = (IStyleDeclarationAdapter) adapter;
return styleAdapter.getModel();
}
/**
*/
private String getCSSValue(Attr attr) {
ICSSModel model = getCSSModel(attr);
if (model == null)
return null;
ICSSNode document = model.getDocument();
if (document == null)
return null;
INodeNotifier notifier = (INodeNotifier) document;
CSSSourceFormatter formatter = (CSSSourceFormatter) notifier.getAdapterFor(CSSSourceFormatter.class);
// try another way to get formatter
if (formatter == null)
formatter = CSSSourceFormatterFactory.getInstance().getSourceFormatter(notifier);
if (formatter == null)
return null;
StringBuffer buffer = formatter.cleanup(document);
if (buffer == null)
return null;
return buffer.toString();
}
private boolean isEmptyElement(IDOMElement element) {
Document document = element.getOwnerDocument();
if (document == null)
// undefined tag, return default
return false;
ModelQuery modelQuery = ModelQueryUtil.getModelQuery(document);
if (modelQuery == null)
// undefined tag, return default
return false;
CMElementDeclaration decl = modelQuery.getCMElementDeclaration(element);
if (decl == null)
// undefined tag, return default
return false;
return (decl.getContentType() == CMElementDeclaration.EMPTY);
}
protected IDOMNode insertEndTag(IDOMNode node) {
IDOMElement element = (IDOMElement) node;
int startTagStartOffset = node.getStartOffset();
IDOMModel structuredModel = node.getModel();
IDOMNode newNode = null;
if (element.isCommentTag()) {
// do nothing
}
else if (isEmptyElement(element)) {
IStructuredDocument structuredDocument = structuredModel.getStructuredDocument();
IStructuredDocumentRegion startStructuredDocumentRegion = node.getStartStructuredDocumentRegion();
ITextRegionList regions = startStructuredDocumentRegion.getRegions();
ITextRegion lastRegion = regions.get(regions.size() - 1);
replaceSource(structuredModel, structuredDocument, startStructuredDocumentRegion.getStartOffset(lastRegion), lastRegion.getLength(), EMPTY_TAG_CLOSE);
if (regions.size() > 1) {
ITextRegion regionBeforeTagClose = regions.get(regions.size() - 1 - 1);
// insert a space separator before tag close if the previous
// region does not have extra spaces
if (regionBeforeTagClose.getTextLength() == regionBeforeTagClose.getLength())
replaceSource(structuredModel, structuredDocument, startStructuredDocumentRegion.getStartOffset(lastRegion), 0, " "); //$NON-NLS-1$
}
}
else {
String tagName = node.getNodeName();
String endTag = END_TAG_OPEN.concat(tagName).concat(TAG_CLOSE);
IDOMNode lastChild = (IDOMNode) node.getLastChild();
int endTagStartOffset = 0;
if (lastChild != null)
// if this node has children, insert the end tag after the
// last child
endTagStartOffset = lastChild.getEndOffset();
else
// if this node does not has children, insert the end tag
// after the start tag
endTagStartOffset = node.getEndOffset();
IStructuredDocument structuredDocument = structuredModel.getStructuredDocument();
replaceSource(structuredModel, structuredDocument, endTagStartOffset, 0, endTag);
}
newNode = (IDOMNode) structuredModel.getIndexedRegion(startTagStartOffset); // save
// new
// node
return newNode;
}
protected IDOMNode insertMissingTags(IDOMNode node) {
boolean insertMissingTags = getCleanupPreferences().getInsertMissingTags();
IDOMNode newNode = node;
if (insertMissingTags) {
IStructuredDocumentRegion startTagStructuredDocumentRegion = node.getStartStructuredDocumentRegion();
if (startTagStructuredDocumentRegion == null) {
// implicit start tag; generate tag for it
newNode = insertStartTag(node);
startTagStructuredDocumentRegion = newNode.getStartStructuredDocumentRegion();
}
IStructuredDocumentRegion endTagStructuredDocumentRegion = newNode.getEndStructuredDocumentRegion();
ITextRegionList regionList = startTagStructuredDocumentRegion.getRegions();
if (startTagStructuredDocumentRegion != null && regionList != null && regionList.get(regionList.size() - 1).getType() == DOMRegionContext.XML_EMPTY_TAG_CLOSE) {
}
else {
if (startTagStructuredDocumentRegion == null) {
// start tag missing
if (isStartTagRequired(newNode))
newNode = insertStartTag(newNode);
}
else if (endTagStructuredDocumentRegion == null) {
// end tag missing
if (isEndTagRequired(newNode))
newNode = insertEndTag(newNode);
}
}
}
return newNode;
}
protected IDOMNode insertStartTag(IDOMNode node) {
IDOMElement element = (IDOMElement) node;
if (element.isCommentTag())
return node; // do nothing
IDOMNode newNode = null;
String tagName = node.getNodeName();
String startTag = START_TAG_OPEN.concat(tagName).concat(TAG_CLOSE);
int startTagStartOffset = node.getStartOffset();
IDOMModel structuredModel = node.getModel();
IStructuredDocument structuredDocument = structuredModel.getStructuredDocument();
replaceSource(structuredModel, structuredDocument, startTagStartOffset, 0, startTag);
newNode = (IDOMNode) structuredModel.getIndexedRegion(startTagStartOffset); // save
// new
// node
return newNode;
}
protected void insertTagClose(IDOMModel structuredModel, IStructuredDocumentRegion flatNode) {
if ((flatNode != null) && (flatNode.getRegions() != null)) {
ITextRegionList regionList = flatNode.getRegions();
ITextRegion lastRegion = regionList.get(regionList.size() - 1);
if (lastRegion != null) {
String regionType = lastRegion.getType();
if ((regionType != DOMRegionContext.XML_EMPTY_TAG_CLOSE) && (regionType != DOMRegionContext.XML_TAG_CLOSE)) {
IStructuredDocument structuredDocument = structuredModel.getStructuredDocument();
// insert ">" after lastRegion of flatNode
// as in "<a</a>" if flatNode is for start tag, or in
// "<a></a" if flatNode is for end tag
replaceSource(structuredModel, structuredDocument, flatNode.getTextEndOffset(lastRegion), 0, ">"); //$NON-NLS-1$
}
}
}
}
protected boolean isEndTagRequired(IDOMNode node) {
if (node == null)
return false;
return node.isContainer();
}
/**
* The end tags of HTML EMPTY content type, such as IMG, and HTML
* undefined tags are parsed separately from the start tags. So inserting
* the missing start tag is useless and even harmful.
*/
protected boolean isStartTagRequired(IDOMNode node) {
if (node == null)
return false;
return node.isContainer();
}
protected boolean isXMLType(IDOMModel structuredModel) {
boolean result = false;
if (structuredModel != null) {
IDOMDocument document = structuredModel.getDocument();
if (document != null)
result = document.isXMLType();
}
return result;
}
protected IDOMNode quoteAttrValue(IDOMNode node) {
IDOMElement element = (IDOMElement) node;
if (element.isCommentTag())
return node; // do nothing
boolean quoteAttrValues = getCleanupPreferences().getQuoteAttrValues();
IDOMNode newNode = node;
if (quoteAttrValues) {
NamedNodeMap attributes = newNode.getAttributes();
int attributesLength = attributes.getLength();
ISourceGenerator generator = node.getModel().getGenerator();
for (int i = 0; i < attributesLength; i++) {
attributes = newNode.getAttributes();
attributesLength = attributes.getLength();
IDOMAttr eachAttr = (IDOMAttr) attributes.item(i);
// ITextRegion oldAttrValueRegion = eachAttr.getValueRegion();
String oldAttrValue = eachAttr.getValueRegionText();
if (oldAttrValue == null) {
IDOMModel structuredModel = node.getModel();
if (isXMLType(structuredModel)) {
// TODO: Kit, please check. Is there any way to not
// rely on getting regions from attributes?
String newAttrValue = "=\"" + eachAttr.getNameRegionText() + "\""; //$NON-NLS-1$ //$NON-NLS-2$
IStructuredDocument structuredDocument = structuredModel.getStructuredDocument();
replaceSource(structuredModel, structuredDocument, eachAttr.getNameRegionEndOffset(), 0, newAttrValue);
newNode = (IDOMNode) structuredModel.getIndexedRegion(node.getStartOffset()); // save
// new
// node
}
}
else {
char quote = StringUtils.isQuoted(oldAttrValue) ? oldAttrValue.charAt(0) : DOUBLE_QUOTE;
String newAttrValue = generator.generateAttrValue(eachAttr, quote);
// There is a problem in
// StructuredDocumentRegionUtil.getAttrValue(ITextRegion)
// when the region is instanceof ContextRegion.
// Workaround for now...
if (oldAttrValue.length() == 1) {
char firstChar = oldAttrValue.charAt(0);
if (firstChar == SINGLE_QUOTE)
newAttrValue = SINGLE_QUOTES;
else if (firstChar == DOUBLE_QUOTE)
newAttrValue = DOUBLE_QUOTES;
}
if (newAttrValue != null) {
if (newAttrValue.compareTo(oldAttrValue) != 0) {
int attrValueStartOffset = eachAttr.getValueRegionStartOffset();
int attrValueLength = oldAttrValue.length();
int startTagStartOffset = node.getStartOffset();
IDOMModel structuredModel = node.getModel();
IStructuredDocument structuredDocument = structuredModel.getStructuredDocument();
replaceSource(structuredModel, structuredDocument, attrValueStartOffset, attrValueLength, newAttrValue);
newNode = (IDOMNode) structuredModel.getIndexedRegion(startTagStartOffset); // save
// new
// node
}
}
}
}
}
return newNode;
}
private IDOMNode insertRequiredAttrs(IDOMNode node) {
boolean insertRequiredAttrs = getCleanupPreferences().getInsertRequiredAttrs();
IDOMNode newNode = node;
if (insertRequiredAttrs) {
List requiredAttrs = getRequiredAttrs(newNode);
if (requiredAttrs.size() > 0) {
NamedNodeMap currentAttrs = node.getAttributes();
List insertAttrs = new ArrayList();
if (currentAttrs.getLength() == 0)
insertAttrs.addAll(requiredAttrs);
else {
for (int i = 0; i < requiredAttrs.size(); i++) {
String requiredAttrName = ((CMAttributeDeclaration) requiredAttrs.get(i)).getAttrName();
boolean found = false;
for (int j = 0; j < currentAttrs.getLength(); j++) {
String currentAttrName = currentAttrs.item(j).getNodeName();
if (requiredAttrName.compareToIgnoreCase(currentAttrName) == 0) {
found = true;
break;
}
}
if (!found)
insertAttrs.add(requiredAttrs.get(i));
}
}
if (insertAttrs.size() > 0) {
IStructuredDocumentRegion startStructuredDocumentRegion = newNode.getStartStructuredDocumentRegion();
int index = startStructuredDocumentRegion.getEndOffset();
ITextRegion lastRegion = startStructuredDocumentRegion.getLastRegion();
if (lastRegion.getType() == DOMRegionContext.XML_TAG_CLOSE) {
index--;
lastRegion = startStructuredDocumentRegion.getRegionAtCharacterOffset(index - 1);
}
else if (lastRegion.getType() == DOMRegionContext.XML_EMPTY_TAG_CLOSE) {
index = index - 2;
lastRegion = startStructuredDocumentRegion.getRegionAtCharacterOffset(index - 1);
}
MultiTextEdit multiTextEdit = new MultiTextEdit();
try {
for (int i = insertAttrs.size() - 1; i >= 0; i--) {
CMAttributeDeclaration attrDecl = (CMAttributeDeclaration) insertAttrs.get(i);
String requiredAttributeName = attrDecl.getAttrName();
String defaultValue = attrDecl.getDefaultValue();
if (defaultValue == null)
defaultValue = ""; //$NON-NLS-1$
String nameAndDefaultValue = " "; //$NON-NLS-1$
if (i == 0 && lastRegion.getLength() > lastRegion.getTextLength())
nameAndDefaultValue = ""; //$NON-NLS-1$
nameAndDefaultValue += requiredAttributeName + "=\"" + defaultValue + "\""; //$NON-NLS-1$ //$NON-NLS-2$
multiTextEdit.addChild(new InsertEdit(index, nameAndDefaultValue));
// BUG3381: MultiTextEdit applies all child
// TextEdit's basing on offsets
// in the document before the first TextEdit, not
// after each
// child TextEdit. Therefore, do not need to
// advance the index.
// index += nameAndDefaultValue.length();
}
multiTextEdit.apply(newNode.getStructuredDocument());
}
catch (BadLocationException e) {
// log or now, unless we find reason not to
Logger.log(Logger.INFO, e.getMessage());
}
}
}
}
return newNode;
}
protected ModelQuery getModelQuery(Node node) {
ModelQuery result = null;
if (node.getNodeType() == Node.DOCUMENT_NODE) {
result = ModelQueryUtil.getModelQuery((Document) node);
}
else {
result = ModelQueryUtil.getModelQuery(node.getOwnerDocument());
}
return result;
}
protected List getRequiredAttrs(Node node) {
List result = new ArrayList();
ModelQuery modelQuery = getModelQuery(node);
if (modelQuery != null) {
CMElementDeclaration elementDecl = modelQuery.getCMElementDeclaration((Element) node);
if (elementDecl != null) {
CMNamedNodeMap attrMap = elementDecl.getAttributes();
Iterator it = attrMap.iterator();
CMAttributeDeclaration attr = null;
while (it.hasNext()) {
attr = (CMAttributeDeclaration) it.next();
if (attr.getUsage() == CMAttributeDeclaration.REQUIRED) {
result.add(attr);
}
}
}
}
return result;
}
/**
* <p>Compress empty element tags if the prefence is set to do so</p>
*
* @copyof org.eclipse.wst.xml.core.internal.cleanup.ElementNodeCleanupHandler#compressEmptyElementTag
*
* @param node the {@link IDOMNode} to possible compress
* @return the compressed node if the given node should be compressed, else the node as it was given
*/
private IDOMNode compressEmptyElementTag(IDOMNode node) {
boolean compressEmptyElementTags = getCleanupPreferences().getCompressEmptyElementTags();
IDOMNode newNode = node;
IStructuredDocumentRegion startTagStructuredDocumentRegion = newNode.getFirstStructuredDocumentRegion();
IStructuredDocumentRegion endTagStructuredDocumentRegion = newNode.getLastStructuredDocumentRegion();
//only compress tags if they are empty
if ((compressEmptyElementTags && startTagStructuredDocumentRegion != endTagStructuredDocumentRegion &&
startTagStructuredDocumentRegion != null)) {
//only compress end tags if its XHTML or not a container
if(isXMLTag((IDOMElement)newNode) || !newNode.isContainer()) {
ITextRegionList regions = startTagStructuredDocumentRegion.getRegions();
ITextRegion lastRegion = regions.get(regions.size() - 1);
// format children and end tag if not empty element tag
if (lastRegion.getType() != DOMRegionContext.XML_EMPTY_TAG_CLOSE) {
NodeList childNodes = newNode.getChildNodes();
if (childNodes == null || childNodes.getLength() == 0 || (childNodes.getLength() == 1 && (childNodes.item(0)).getNodeType() == Node.TEXT_NODE && ((childNodes.item(0)).getNodeValue().trim().length() == 0))) {
IDOMModel structuredModel = newNode.getModel();
IStructuredDocument structuredDocument = structuredModel.getStructuredDocument();
int startTagStartOffset = newNode.getStartOffset();
int offset = endTagStructuredDocumentRegion.getStart();
int length = endTagStructuredDocumentRegion.getLength();
structuredDocument.replaceText(structuredDocument, offset, length, ""); //$NON-NLS-1$
newNode = (IDOMNode) structuredModel.getIndexedRegion(startTagStartOffset); // save
offset = startTagStructuredDocumentRegion.getStart() + lastRegion.getStart();
structuredDocument.replaceText(structuredDocument, offset, 0, "/"); //$NON-NLS-1$
newNode = (IDOMNode) structuredModel.getIndexedRegion(startTagStartOffset); // save
}
}
}
}
return newNode;
}
}