/*******************************************************************************

 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

 * 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:

 *     Nokia Corporation - initial implementation

 *******************************************************************************/

package org.eclipse.swt.internal.qt;

import org.eclipse.swt.internal.qt.midp.UIThreadLauncher;

import org.eclipse.swt.widgets.Display;

import org.eclipse.swt.widgets.Internal_PackageSupport;

import org.eclipse.swt.widgets.Shell;

/**

 * A class that manages the UI thread hand-over from the internal UI event 

 * loop to the application. 

 */

public final class UIThreadHandOverManager {

    /**

     * Called indirectly by the application when it's requesting the UI thread. 

     * Application will pass a Runnable as a parameter and expects it to get called

     * in the UI thread. 

     * 

     * @param runnable

     *            The Runnable to call in the UI thread.

     * @return True if obtaining the UI thread was successful and the runnable

     *         will be called.

     */

    public static boolean startInUIThread(Runnable runnable) {

        if(!UIThreadLauncher.startInUIThread(runnable)) {

            return false;

        }

        return true;

    }

}