Slight modification to *Mapper comments.

[online-glom:gwt-glom.git] / src / main / java / org / glom / web / client / mvp / DataActivityMapper.java

/*
 * Copyright (C) 2011 Openismus GmbH
 *
 * This file is part of GWT-Glom.
 *
 * GWT-Glom is free software: you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 *
 * GWT-Glom 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 Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with GWT-Glom.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.glom.web.client.mvp;

import org.glom.web.client.ClientFactory;
import org.glom.web.client.activity.DetailsActivity;
import org.glom.web.client.activity.ListActivity;
import org.glom.web.client.place.DetailsPlace;
import org.glom.web.client.place.ListPlace;

import com.google.gwt.activity.shared.Activity;
import com.google.gwt.activity.shared.ActivityMapper;
import com.google.gwt.place.shared.Place;

/**
 * @author Ben Konrath <ben@bagu.org>
 * 
 */
public class DataActivityMapper implements ActivityMapper {

        private ClientFactory clientFactory;

        /**
         * ActivityMapper associates each Place with its corresponding {@link Activity}
         * 
         * @param clientFactory
         *            Factory to be passed to activities
         */
        public DataActivityMapper(ClientFactory clientFactory) {
                this.clientFactory = clientFactory;
        }

        /**
         * Map each Place to its corresponding Activity.
         */
        @Override
        public Activity getActivity(Place place) {
                if (place instanceof ListPlace)
                        return new ListActivity((ListPlace) place, clientFactory);
                if (place instanceof DetailsPlace)
                        return new DetailsActivity((DetailsPlace) place, clientFactory);

                return null;
        }

}