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/*******************************************************************************
* Copyright (c) 2004, 2005 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.util;
import java.util.Iterator;
import java.util.Vector;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSNode;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSSelector;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSSelectorList;
import org.eclipse.wst.css.core.internal.provisional.document.ICSSStyleRule;
/**
*
*/
public class SelectorsCollector extends AbstractCssTraverser {
protected Vector selectors = new Vector();
protected Vector selectorsToAvoid = null;
/**
*
*/
public SelectorsCollector() {
super();
setTraverseImported(false);
}
/**
*
*/
public void addSelectorToAvoid(ICSSSelector selToAvoid) {
if (selToAvoid == null)
return;
if (selectorsToAvoid == null)
selectorsToAvoid = new Vector();
if (!selectorsToAvoid.contains(selToAvoid))
selectorsToAvoid.add(selToAvoid);
}
/**
*
*/
public void addSelectorToAvoid(ICSSStyleRule rule) {
ICSSSelectorList list = rule.getSelectors();
Iterator it = list.getIterator();
while (it.hasNext()) {
ICSSSelector sel = (ICSSSelector) it.next();
addSelectorToAvoid(sel);
}
}
/**
*
*/
public java.util.List getSelectors() {
return selectors;
}
/**
*
*/
protected short preNode(ICSSNode node) {
if (node.getNodeType() == ICSSNode.STYLERULE_NODE) {
ICSSStyleRule rule = (ICSSStyleRule) node;
ICSSSelectorList list = rule.getSelectors();
Iterator it = list.getIterator();
while (it.hasNext()) {
Object obj = it.next();
if (selectorsToAvoid != null && selectorsToAvoid.contains(obj))
continue;
if (!selectors.contains(obj))
selectors.add(obj);
}
return TRAV_PRUNE;
}
else if (node.getNodeType() == ICSSNode.STYLESHEET_NODE) {
return TRAV_CONT;
}
return TRAV_PRUNE;
}
/**
*
*/
public void setSelectorsToAvoid(java.util.Vector newSelectorsToAvoid) {
selectorsToAvoid = newSelectorsToAvoid;
}
}
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