/*******************************************************************************
 * Copyright (c) 2008 Standards for Technology in Automotive Retail 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:
 *     David Carver - initial API and implementation, bug 212330
 *     
 *******************************************************************************/
package org.eclipse.wst.xml.ui.internal.handlers;

import java.util.Map;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.commands.IElementUpdater;
import org.eclipse.ui.menus.UIElement;
import org.eclipse.wst.xml.ui.internal.tabletree.IDesignViewer;
import org.eclipse.wst.xml.ui.internal.tabletree.XMLTableTreeViewer;

public class ExpandCollapseAllHandler extends AbstractHandler implements IElementUpdater {

	protected XMLTableTreeViewer viewer = null;

	/**
	 * Command handler for handling Expand and Collapse for Tree Viewer 
	 */
	public ExpandCollapseAllHandler() {
		super();
	}

	/* (non-Javadoc)
	 * @see org.eclipse.core.commands.AbstractHandler#execute(org.eclipse.core.commands.ExecutionEvent)
	 */
	public Object execute(ExecutionEvent event) throws ExecutionException {
		// Implementors to put their code here.
		
		return null;
	}
	
	protected XMLTableTreeViewer getTableTreeViewerForEditorPart(IEditorPart targetEditor) {
		XMLTableTreeViewer result = null;
		Object object = targetEditor.getAdapter(IDesignViewer.class);
		if (object instanceof XMLTableTreeViewer) {
			result = (XMLTableTreeViewer) object;
		}
		return result;
	}
	
	public void updateElement(UIElement element, Map parameters) {
		// TODO Auto-generated method stub
		
	}
}