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/*******************************************************************************
* 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.css.core.internal.metamodel.util;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.eclipse.wst.css.core.internal.metamodel.CSSMMDescriptor;
import org.eclipse.wst.css.core.internal.metamodel.CSSMMNode;
import org.eclipse.wst.css.core.internal.metamodel.CSSMMProperty;
import org.eclipse.wst.css.core.internal.metamodel.CSSMetaModel;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSNode;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSStyleDeclItem;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSStyleDeclaration;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSStyleRule;
import org.w3c.dom.css.CSSFontFaceRule;
public class CSSMetaModelUtil {
public CSSMetaModelUtil(CSSMetaModel metamodel) {
super();
fMetaModel = metamodel;
}
public Iterator getProperties() {
return collectNodesByType(CSSMMNode.TYPE_PROPERTY);
}
public Iterator getDescriptors() {
return collectNodesByType(CSSMMNode.TYPE_DESCRIPTOR);
}
public Iterator collectNodesByType(String type) {
CSSMMTypeCollector collector = new CSSMMTypeCollector();
collector.apply(fMetaModel, type);
return collector.getNodes();
}
public CSSMMProperty getProperty(String propertyName) {
Iterator iProperty = getProperties();
while (iProperty.hasNext()) {
CSSMMNode node = (CSSMMNode) iProperty.next();
if (node.getName().equalsIgnoreCase(propertyName)) {
return (CSSMMProperty) node;
}
}
return null;
}
public CSSMMDescriptor getDescriptor(String descriptorName) {
Iterator iDescriptor = getDescriptors();
while (iDescriptor.hasNext()) {
CSSMMNode node = (CSSMMNode) iDescriptor.next();
if (node.getName().equalsIgnoreCase(descriptorName)) {
return (CSSMMDescriptor) node;
}
}
return null;
}
public CSSMMNode getMetaModelNodeFor(ICSSNode node) {
if (node instanceof ICSSStyleDeclaration) {
node = node.getParentNode();
}
if (node instanceof ICSSStyleDeclItem) {
ICSSNode parent = node.getParentNode();
if (parent != null) {
parent = parent.getParentNode();
}
if (parent instanceof ICSSStyleRule) {
return getProperty(((ICSSStyleDeclItem) node).getPropertyName());
}
else if (parent instanceof CSSFontFaceRule) {
return getDescriptor(((ICSSStyleDeclItem) node).getPropertyName());
}
}
if (node == null) {
return null;
}
if (fTypeMap == null) {
fTypeMap = new HashMap();
fTypeMap.put(new Short(ICSSNode.STYLERULE_NODE), CSSMMNode.TYPE_STYLE_RULE);
fTypeMap.put(new Short(ICSSNode.FONTFACERULE_NODE), CSSMMNode.TYPE_FONT_FACE_RULE);
fTypeMap.put(new Short(ICSSNode.PAGERULE_NODE), CSSMMNode.TYPE_PAGE_RULE);
}
String nodeType = (String) fTypeMap.get(new Short(node.getNodeType()));
if (nodeType == null) {
return null;
}
Iterator iNodes = collectNodesByType(nodeType);
if (iNodes.hasNext()) {
CSSMMNode targetNode = (CSSMMNode) iNodes.next();
if (!iNodes.hasNext()) { // it's only one
return targetNode;
}
}
return null;
}
public CSSMetaModel getMetaModel() {
return fMetaModel;
}
private CSSMetaModel fMetaModel = null;
private Map fTypeMap = null;
}
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