/*******************************************************************************
* 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.jsdt.web.ui.views.provisional.contentoutline;
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.CMDataType;
import org.eclipse.wst.xml.core.internal.contentmodel.CMElementDeclaration;
import org.eclipse.wst.xml.core.internal.contentmodel.modelquery.ModelQuery;
import org.eclipse.wst.xml.core.internal.modelquery.ModelQueryUtil;
import org.eclipse.wst.xml.ui.internal.contentoutline.JFaceNodeLabelProvider;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
/**
*
* Provisional API: This class/interface is part of an interim API that is still under development and expected to
* change significantly before reaching stability. It is being made available at this early stage to solicit feedback
* from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
* (repeatedly) as the API evolves.
*/
public class XMLLabelProvider extends JFaceNodeLabelProvider {
boolean fShowAttributes = false;
public String getText(Object o) {
StringBuffer text = new StringBuffer(super.getText(o));
if (o instanceof Node) {
Node node = (Node) o;
if ((node.getNodeType() == Node.ELEMENT_NODE) && fShowAttributes) {
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=88444
if (node.hasAttributes()) {
Element element = (Element) node;
NamedNodeMap attributes = element.getAttributes();
Node idTypedAttribute = null;
Node requiredAttribute = null;
boolean hasId = false;
boolean hasName = false;
Node shownAttribute = null;
// try to get content model element
// declaration
CMElementDeclaration elementDecl = null;
ModelQuery mq = ModelQueryUtil.getModelQuery(element.getOwnerDocument());
if (mq != null) {
elementDecl = mq.getCMElementDeclaration(element);
}
// find an attribute of type (or just named)
// ID
if (elementDecl != null) {
int i = 0;
while ((i < attributes.getLength()) && (idTypedAttribute == null)) {
Node attr = attributes.item(i);
String attrName = attr.getNodeName();
CMAttributeDeclaration attrDecl = (CMAttributeDeclaration) elementDecl.getAttributes().getNamedItem(attrName);
if (attrDecl != null) {
if ((attrDecl.getAttrType() != null) && (CMDataType.ID.equals(attrDecl.getAttrType().getDataTypeName()))) {
idTypedAttribute = attr;
} else if ((attrDecl.getUsage() == CMAttributeDeclaration.REQUIRED) && (requiredAttribute == null)) {
// as a backup, keep tabs on
// any required
// attributes
requiredAttribute = attr;
} else {
hasId = hasId || attrName.equals("id"); //$NON-NLS-1$
hasName = hasName || attrName.equals("name"); //$NON-NLS-1$
}
}
++i;
}
}
/*
* If no suitable attribute was found, try using a
* required attribute, if none, then prefer "id" or
* "name", otherwise just use first attribute
*/
if (idTypedAttribute != null) {
shownAttribute = idTypedAttribute;
} else if (requiredAttribute != null) {
shownAttribute = requiredAttribute;
} else if (hasId) {
shownAttribute = attributes.getNamedItem("id"); //$NON-NLS-1$
} else if (hasName) {
shownAttribute = attributes.getNamedItem("name"); //$NON-NLS-1$
}
if (shownAttribute == null) {
shownAttribute = attributes.item(0);
}
// display the attribute and value (without quotes)
String attributeName = shownAttribute.getNodeName();
if ((attributeName != null) && (attributeName.length() > 0)) {
text.append(" " + attributeName); //$NON-NLS-1$
String attributeValue = shownAttribute.getNodeValue();
if ((attributeValue != null) && (attributeValue.length() > 0)) {
text.append("=" + StringUtils.strip(attributeValue)); //$NON-NLS-1$
}
}
}
}
}
return text.toString();
}
}