SaveHandler.java example

Explorer
eclipse.platform.ui-master
/*******************************************************************************
 * Copyright (c) 2009, 2010 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.e4.demo.contacts.handlers;

import java.lang.reflect.InvocationTargetException;
import javax.inject.Named;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.e4.core.contexts.ContextInjectionFactory;
import org.eclipse.e4.core.contexts.IEclipseContext;
import org.eclipse.e4.core.di.annotations.CanExecute;
import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.e4.core.di.annotations.Optional;
import org.eclipse.e4.ui.di.Persist;
import org.eclipse.e4.ui.model.application.ui.basic.MPart;
import org.eclipse.e4.ui.services.IServiceConstants;
import org.eclipse.e4.ui.services.IStylingEngine;
import org.eclipse.e4.ui.workbench.modeling.EPartService;
import org.eclipse.jface.dialogs.ProgressMonitorDialog;
import org.eclipse.jface.operation.IRunnableWithProgress;
import org.eclipse.swt.widgets.Shell;

public class SaveHandler {

	@CanExecute
	public boolean canExecute(EPartService partService) {
		MPart details = partService.findPart("DetailsView");
		return details.isDirty();
	}

	@Execute
	public void execute(
			IEclipseContext context, @Optional IStylingEngine engine,
			@Named(IServiceConstants.ACTIVE_SHELL) Shell shell,
			final EPartService partService)
			throws InvocationTargetException, InterruptedException {
		final MPart details = partService.findPart("DetailsView");
		final IEclipseContext pmContext = context.createChild();

		ProgressMonitorDialog dialog = new ProgressMonitorDialog(shell);
		dialog.open();

		ThemeUtil.applyDialogStyles(engine, dialog.getShell());

		dialog.run(true, true, new IRunnableWithProgress() {
			public void run(IProgressMonitor monitor)
					throws InvocationTargetException, InterruptedException {
				pmContext.set(IProgressMonitor.class.getName(), monitor);
				Object clientObject = details.getObject();
				ContextInjectionFactory.invoke(clientObject, Persist.class,
						pmContext, null);
			}
		});

		if (pmContext != null)
			pmContext.dispose();
	}

}