ch.sebastienzurfluh.swissmuseum.parcours.client.control.AppPresenter.java Source code

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Here is the source code for ch.sebastienzurfluh.swissmuseum.parcours.client.control.AppPresenter.java

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/*
 * Copyright 2012-2013 Sebastien Zurfluh
 * 
 * This file is part of "Parcours".
 * 
 * "Parcours" 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, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * "Parcours" 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 "Parcours".  If not, see <http://www.gnu.org/licenses/>.
 */

package ch.sebastienzurfluh.swissmuseum.parcours.client.control;

import ch.sebastienzurfluh.swissmuseum.core.client.control.eventbus.EventBus;
import ch.sebastienzurfluh.swissmuseum.core.client.control.eventbus.PageRequestEventHandler;
import ch.sebastienzurfluh.swissmuseum.core.client.control.eventbus.ResourceRequestEventHandler;
import ch.sebastienzurfluh.swissmuseum.core.client.control.eventbus.events.PageChangeRequest;
import ch.sebastienzurfluh.swissmuseum.core.client.model.Model;
import ch.sebastienzurfluh.swissmuseum.core.client.model.io.IOConnector;
import ch.sebastienzurfluh.swissmuseum.core.client.model.structure.DataReference;
import ch.sebastienzurfluh.swissmuseum.parcours.client.control.eventbus.PageRequestHistory;
import ch.sebastienzurfluh.swissmuseum.parcours.client.view.View;

import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Panel;
import com.googlecode.gwtphonegap.client.PhoneGapAvailableEvent;
import com.googlecode.gwtphonegap.client.PhoneGapAvailableHandler;
import com.googlecode.gwtphonegap.client.PhoneGapTimeoutEvent;
import com.googlecode.gwtphonegap.client.PhoneGapTimeoutHandler;

/**
 * This class creates the web app and adds it to the given panel.
 * @author Sebastien Zurfluh
 */
public class AppPresenter {
    private Panel parent;
    private EventBus eventBus;
    private Model model;

    public AppPresenter(Panel parent) {
        this.parent = parent;
    }

    /**
     * Does what's needed before the app starts.
     * Loads and display the application in the panel defined at construction.
     * 
     * This method is asynchronuous.
     */
    public void start() {
        PhoneGapHandle.getInstance().addHandler(new PhoneGapAvailableHandler() {
            @Override
            public void onPhoneGapAvailable(PhoneGapAvailableEvent event) {
                System.out.println("AppPresenter: " + "PhoneGap available");
                startAfterPhoneGapLoad();
            }
        });

        PhoneGapHandle.getInstance().addHandler(new PhoneGapTimeoutHandler() {

            @Override
            public void onPhoneGapTimeout(PhoneGapTimeoutEvent event) {
                // we do the same if phonegap doesn't work
                System.out.println("AppPresenter: " + "PhoneGap NOT available");
                startAfterPhoneGapLoad();
            }
        });

        PhoneGapHandle.getInstance().initializePhoneGap();
    }

    private void startAfterPhoneGapLoad() {
        eventBus = new EventBus();

        AsyncConnectorFactory.createConnector(new ParcoursConfig(), new AsyncCallback<IOConnector>() {

            @Override
            public void onSuccess(IOConnector result) {
                model = new Model(result);

                PageRequestEventHandler pageRequestHandler = new PageRequestEventHandler(eventBus, model);
                ResourceRequestEventHandler resourceRequestHandler = new ResourceRequestEventHandler(eventBus,
                        model);
                PageRequestHistory pageRequestHistory = new PageRequestHistory(eventBus, model);

                View view = new View(eventBus, model, pageRequestHandler, resourceRequestHandler);

                parent.add(view);

                // Start the app
                eventBus.fireEvent(new PageChangeRequest(DataReference.SUPER));
            }

            @Override
            public void onFailure(Throwable caught) {
                Window.alert("The app failed to initialise.");
            }
        });

    }
}