VisitTutorialSiteAction.java

//    This file is part of Penn TotalRecall <http://memory.psych.upenn.edu/TotalRecall>.
//
//    TotalRecall is free software: you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation, version 3 only.
//
//    TotalRecall is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with TotalRecall.  If not, see <http://www.gnu.org/licenses/>.

package behaviors.singleact;


import info.Constants;

import java.awt.event.ActionEvent;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;

import util.GiveMessage;

/**
 * Attempts to bring the user to the program's tutorial website.
 * 
 * @author Yuvi Masory
 */
public class VisitTutorialSiteAction extends IdentifiedSingleAction {

	public VisitTutorialSiteAction() {
	}

	/**
	 * Attempts to guide the user's web browser to the program tutorial website.
	 *  
	 * If the user cannot be brought to the program's tutorial site in the web browser, a dialog
	 * is launched containing the URL.
	 */
	public void actionPerformed(ActionEvent e) {
		try {
			//requires Java 6 API
			if(java.awt.Desktop.isDesktopSupported()) {
				if(java.awt.Desktop.getDesktop().isSupported(java.awt.Desktop.Action.BROWSE)) {
					java.awt.Desktop.getDesktop().browse(new URI(Constants.tutorialSite));
				}

			}
			return;
		}
		catch (IOException e1) {
			e1.printStackTrace();
		} 
		catch (URISyntaxException e1) {
			e1.printStackTrace();
		}
		catch(NoClassDefFoundError e1) {
			System.err.println("Without Java 6 your browser cannot be launched");
			e1.printStackTrace();
		}

		//in case Java 6 classes not available
		GiveMessage.infoMessage(Constants.tutorialSite + "\n\n" + Constants.orgName + "\n" + Constants.orgAffiliationName);
	}
	
	/**
	 * <code>VisitTutorialSiteAction</code> is always enabled.
	 */
	@Override
	public void update() {}
}