/*******************************************************************************
 * Copyright (c) 2007 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.ui.internal.handlers;

import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPartReference;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.handlers.HandlerUtil;
import org.eclipse.ui.presentations.IStackPresentationSite;

/**
 * @since 3.4
 * 
 */
public class MinimizePartHandler extends AbstractHandler {

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
	 */
	public Object execute(ExecutionEvent event) throws ExecutionException {
		IWorkbenchWindow activeWorkbenchWindow = HandlerUtil
				.getActiveWorkbenchWindow(event);
		if (activeWorkbenchWindow != null) {
			IWorkbenchPage page = activeWorkbenchWindow.getActivePage();
			if (page != null) {
				IWorkbenchPartReference partRef = page.getActivePartReference();
				if (partRef != null) {
					page.setPartState(partRef,
							IStackPresentationSite.STATE_MINIMIZED);
				}
			}
		}
		return null;
	}

}