/*******************************************************************************
 * Copyright (c) 2010 SAP AG.
 * 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:
 *    Mathias Kinzler (SAP AG) - initial implementation
 *******************************************************************************/
package org.eclipse.egit.ui.internal.commands.shared;

import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.egit.ui.internal.UIText;
import org.eclipse.egit.ui.internal.dialogs.NonBlockingWizardDialog;
import org.eclipse.egit.ui.internal.fetch.FetchGerritChangeWizard;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jgit.lib.Repository;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.handlers.HandlerUtil;

/**
 * Fetch a change from Gerrit
 */
public class FetchChangeFromGerritCommand extends AbstractSharedCommandHandler {
	@Override
	public Object execute(ExecutionEvent event) throws ExecutionException {
		Repository repository = getRepository(event);
		if (repository == null) {
			Shell shell = getShell(event);
			MessageDialog
					.openInformation(
							shell,
							UIText.FetchChangeFromGerritCommand_noRepositorySelectedTitle,
							UIText.FetchChangeFromGerritCommand_noRepositorySelectedMessage);

			return null;
		}

		FetchGerritChangeWizard wiz = new FetchGerritChangeWizard(repository);
		NonBlockingWizardDialog dlg = new NonBlockingWizardDialog(
				HandlerUtil.getActiveShellChecked(event), wiz);
		dlg.setHelpAvailable(false);
		dlg.open();
		return null;
	}
}