org.glom.web.client.mvp.DataActivityMapper.java Source code

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Here is the source code for org.glom.web.client.mvp.DataActivityMapper.java

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/*
 * 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.activity.ReportActivity;
import org.glom.web.client.place.DetailsPlace;
import org.glom.web.client.place.HasRecordsPlace;
import org.glom.web.client.place.ListPlace;
import org.glom.web.client.place.ReportPlace;

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

/**
 *
 */
public class DataActivityMapper implements ActivityMapper {

    private final ClientFactory clientFactory;

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

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

        return null;
    }

}