//------------------------------------------------------------------------------
// Copyright (c) 2005, 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 implementation
//------------------------------------------------------------------------------
//------------------------------------------------------------------------------
// Copyright (c) 2005, 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 implementation
//------------------------------------------------------------------------------
package org.eclipse.epf.diagram.core.services;

import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;

/**
 * Synchronizes the document with external resource changes.
 * 
 * @author Phong Nguyen Le
 *
 * @since 1.2
 */
public class FileSynchronizer extends org.eclipse.epf.library.persistence.util.FileSynchronizer {
	/**
	 * Posts the update code "behind" the running operation.
	 *
	 * @param runnable the update code
	 */
	protected void update(Runnable runnable) {
		IWorkbench workbench= PlatformUI.getWorkbench();
		IWorkbenchWindow[] windows= workbench.getWorkbenchWindows();
		if (windows != null && windows.length > 0) {
			Display display= windows[0].getShell().getDisplay();
			display.asyncExec(runnable);
		} else {
			runnable.run();
		}
	}
}