LanguageBean.java

/*
 * This file is part of gwap, an open platform for games with a purpose
 *
 * Copyright (C) 2013
 * Project play4science
 * Lehr- und Forschungseinheit für Programmier- und Modellierungssprachen
 * Ludwig-Maximilians-Universität München
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program 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 Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package gwap.widget;

import gwap.game.GameSessionBean;
import gwap.game.GameSessionBeanNew;
import gwap.model.Person;

import java.io.Serializable;

import javax.persistence.EntityManager;

import org.jboss.seam.ScopeType;
import org.jboss.seam.annotations.In;
import org.jboss.seam.annotations.Name;
import org.jboss.seam.annotations.Out;
import org.jboss.seam.annotations.Scope;
import org.jboss.seam.annotations.web.RequestParameter;
import org.jboss.seam.international.LocaleSelector;

@Name("languageBean")
@Scope(ScopeType.STATELESS)
public class LanguageBean implements Serializable {

	private static final long serialVersionUID = 1L;
	
	@In                      private LocaleSelector localeSelector;
	@In                      private EntityManager entityManager;
	@In(required=false)@Out(required=false)
	                         private Person person;
	@In(required=false)      private GameSessionBean gameSessionBean;
	@In(required=false)      private GameSessionBeanNew gameSessionBeanNew;
	
	@RequestParameter		private String language;

	public void setLanguage() {
		setLanguage(language);
	}
	
	public void setLanguage(String language) {
		localeSelector.setLanguage(language);
		if (person != null) {
			person = entityManager.find(Person.class, person.getId());
			person.setLanguage(language);
		}
	}
	
	public boolean isLanguageChangeDisabled() {
		return gameSessionBean != null || gameSessionBeanNew != null;
	}
	
	public String getClass(String language) {
		return localeSelector.getLanguage().equals(language) ? "active" : "inactive";
	}
}