/*******************************************************************************
 * Copyright (c) 2007 Chase Technology Ltd - http://www.chasetechnology.co.uk
 * 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:
 *     Doug Satchwell (Chase Technology Ltd) - initial API and implementation
 *******************************************************************************/
package org.eclipse.wst.xsl.xalan.debugger;

import java.util.ArrayList;
import java.util.List;
import java.util.Vector;

import org.apache.xalan.templates.ElemVariable;
import org.apache.xalan.templates.StylesheetRoot;
import org.apache.xalan.trace.TracerEvent;
import org.apache.xpath.VariableStack;
import org.eclipse.wst.xsl.debugger.Variable;

public class XalanRootStyleFrame extends XalanStyleFrame
{
	private final List globals = new ArrayList();

	public XalanRootStyleFrame(TracerEvent event)
	{
		super(null, event);
		fillGlobals(event);
	}

	protected List getGlobals()
	{
		return globals;
	}
	
	private void fillGlobals(TracerEvent event)
	{
		VariableStack vs = event.m_processor.getXPathContext().getVarStack();
	    StylesheetRoot sr = event.m_styleNode.getStylesheetRoot();
	    Vector vars = sr.getVariablesAndParamsComposed();
	    int i = vars.size();
	    while (--i >= 0)
		{
			ElemVariable variable = (ElemVariable) vars.elementAt(i);
			XalanVariable xvar = new XalanVariable(this,vs,Variable.GLOBAL_SCOPE,i,variable);
			globals.add(xvar);
		}
	}
}