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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.util;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.wst.css.core.document.ICSSNode;
import org.eclipse.wst.sse.core.IndexedRegion;
/**
*/
public class SelectionCollector extends org.eclipse.wst.css.core.util.AbstractCssTraverser {
int start, end;
List selectedNodes;
/**
* SelectionCollector constructor comment.
*/
public SelectionCollector() {
super();
}
/**
*/
protected void begin(ICSSNode node) {
selectedNodes = new ArrayList();
}
/**
*/
public List getSelectedNodes() {
if (selectedNodes == null)
return new ArrayList();
else
return new ArrayList(selectedNodes);
}
/**
*/
protected short preNode(ICSSNode node) {
IndexedRegion iNode = (IndexedRegion) node;
if (iNode.getStartOffset() <= end && start < iNode.getEndOffset()) {
if (node.getNodeType() != ICSSNode.STYLESHEET_NODE) {
IndexedRegion iFirstChild = (IndexedRegion) node.getFirstChild();
IndexedRegion iLastChild = (IndexedRegion) node.getLastChild();
if (iFirstChild == null || start < iFirstChild.getStartOffset() || iLastChild.getEndOffset() <= end)
selectedNodes.add(node);
}
return TRAV_CONT;
}
if (iNode.getStartOffset() > end)
return TRAV_STOP;
else
return TRAV_PRUNE;
}
/**
*/
public void setRegion(int newStart, int newEnd) {
start = newStart;
end = newEnd;
}
}
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