NonUIThreadProgressMonitorPart.java

/*******************************************************************************
 * Copyright (c) 2016 Red Hat Inc., 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:
 *     Mickael Istria (Red Hat Inc.) - initial API and implementation
 ******************************************************************************/
package org.eclipse.ui.internal.wizards.datatransfer;

import org.eclipse.jface.wizard.ProgressMonitorPart;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Layout;

/**
 * Similar to {@link ProgressMonitorPart} but that can be used by non-UI jobs.
 * UI operations are wrapped in a {@link Runnable} sent to {@link Display} when
 * necessary.
 *
 * @since 3.12
 *
 */
public class NonUIThreadProgressMonitorPart extends ProgressMonitorPart {

	/**
	 * @param parent
	 * @param layout
	 * @param createStopButton
	 */
	public NonUIThreadProgressMonitorPart(Composite parent, Layout layout, boolean createStopButton) {
		super(parent, layout, createStopButton);
	}

	@Override
	public void updateLabel() {
		if (Display.getCurrent() != null) {
			super.updateLabel();
		} else {
			fLabel.getDisplay().asyncExec(() -> {
				if (!fLabel.isDisposed()) {
					super.updateLabel();
				}
			});
		}
	}

	@Override
	public void internalWorked(double work) {
		if (Display.getCurrent() != null) {
			super.internalWorked(work);
		} else {
			fLabel.getDisplay().asyncExec(() -> {
				if (!fLabel.isDisposed()) {
					super.internalWorked(work);
				}
			});
		}
	}
}