ExitDialog.java

package com.example.e4.rcp.todo.contribute.dialogs;

import javax.inject.Inject;
import javax.inject.Named;

import org.eclipse.e4.ui.services.IServiceConstants;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;

public class ExitDialog extends Dialog {
	@Inject
	public ExitDialog(@Named(IServiceConstants.ACTIVE_SHELL) Shell shell) {
		super(shell);
	}

	@Override
	protected Control createDialogArea(Composite parent) {
		Label label = new Label(parent, SWT.NONE);
		label.setText("Closing this application may result in data loss. "
				+ "Are you sure you want that?");
		return parent;
	}

}