1 /*******************************************************************************

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

     3  * All rights reserved. This program and the accompanying materials

     4  * are made available under the terms of the Eclipse Public License v1.0

     5  * which accompanies this distribution, and is available at

     6  * http://www.eclipse.org/legal/epl-v10.html

     7  *

     8  * Contributors:

     9  *     Nokia Corporation - initial implementation

    10  *******************************************************************************/

    11 

    12 package org.eclipse.swt.internal.qt;

    13 

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

    15 import org.eclipse.swt.widgets.Display;

    16 import org.eclipse.swt.widgets.Internal_PackageSupport;

    17 import org.eclipse.swt.widgets.Shell;

    18 

    19 /**

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

    21  * loop to the application. 

    22  */

    23 public final class UIThreadHandOverManager {

    24 

    25     /**

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

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

    28      * in the UI thread. 

    29      * 

    30      * @param runnable

    31      *            The Runnable to call in the UI thread.

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

    33      *         will be called.

    34      */

    35     public static boolean startInUIThread(Runnable runnable) {

    36         if(!UIThreadLauncher.startInUIThread(runnable)) {

    37             return false;

    38         }

    39         

    40         return true;

    41     }

    42 }