com.lisedex.volinfoman.client.MainPagePresenter.java Source code

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Here is the source code for com.lisedex.volinfoman.client.MainPagePresenter.java

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/**
 *    Copyright 2010 John Schutz <john@lisedex.com>
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 **/
package com.lisedex.volinfoman.client;

import com.allen_sauer.gwt.log.client.Log;
import com.google.gwt.user.client.Cookies;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.HTMLPanel;
import com.google.gwt.user.client.ui.Widget;
import com.lisedex.volinfoman.client.data.UserServiceAsync;
import com.mvp4g.client.annotation.InjectService;
import com.mvp4g.client.annotation.Presenter;
import com.mvp4g.client.presenter.BasePresenter;

/**
 * @author John Schutz <john@lisedex.com>
 * 
 */
@Presenter(view = MainPageView.class)
public class MainPagePresenter extends BasePresenter<MainPagePresenter.MainPageViewInterface, VolinfomanEventBus> {

    /**
     * @author John Schutz <john@lisedex.com>
     * 
     */
    public interface MainPageViewInterface {
        public void setContent(Widget w);
    }

    private static final String LOADING_MESSAGE = "<h2>Loading...</h2>";
    private static final String RPC_FAILURE_MESSAGE = "<h2>Failed to contact login server.  Please try again.</h2>";
    private static final String NOT_AUTHENTICATED_MESSAGE = "<h2>You have not logged in.  Redirecting to login page...</h2>";
    // private static final String HOME_PAGE_URL =
    // "http://lisedexvolinfomantest.appspot.com";
    private static final String HOME_PAGE_URL = "/index.html";

    private UserServiceAsync userService = null;

    @InjectService
    public void setService(UserServiceAsync service) {
        Log.debug("setService() " + service);
        this.userService = service;
    }

    public MainPagePresenter() {
        Log.debug("constructor()");
    }

    @Override
    public void bind() {
        Log.debug("bind()");
        view.setContent(new HTMLPanel(LOADING_MESSAGE));

        userService.isAuthenticated(Cookies.getCookie(Volinfoman.SESSION_COOKIE), new AsyncCallback<Boolean>() {
            @Override
            public void onSuccess(Boolean result) {
                if (result.booleanValue() == true) {
                    view.setContent(new HTMLPanel("<h1>AUTHENTICATED</h1>"));
                } else {
                    view.setContent(new HTMLPanel(NOT_AUTHENTICATED_MESSAGE));
                    Window.Location.replace(HOME_PAGE_URL);
                }
            }

            @Override
            public void onFailure(Throwable caught) {
                view.setContent(new HTMLPanel(RPC_FAILURE_MESSAGE));
            }
        });
    }
}