Java tutorial
/* * * Copyright (C) 2007-2015 Licensed to the Comunes Association (CA) under * one or more contributor license agreements (see COPYRIGHT for details). * The CA licenses this file to you under the GNU Affero General Public * License version 3, (the "License"); you may not use this file except in * compliance with the License. This file is part of kune. * * 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 cc.kune.core.client.init; import org.waveprotocol.wave.client.common.util.UserAgent; import cc.kune.common.client.log.Log; import cc.kune.common.client.notify.NotifyLevel; import cc.kune.common.client.notify.NotifyUser; import cc.kune.common.client.notify.ProgressHideEvent; import cc.kune.common.client.notify.UserNotifyEvent; import cc.kune.common.client.resources.CommonResources; import cc.kune.common.client.utils.WindowUtils; import cc.kune.common.shared.utils.SimpleResponseCallback; import cc.kune.common.shared.utils.TextUtils; import cc.kune.core.client.events.AppStartEvent; import cc.kune.core.client.events.AppStopEvent; import cc.kune.core.client.rpcservices.SiteServiceAsync; import cc.kune.core.client.state.Session; import cc.kune.core.client.state.SiteParameters; import cc.kune.core.shared.CoreConstants; import cc.kune.core.shared.dto.InitDataDTO; import com.google.web.bindery.event.shared.EventBus; import com.google.gwt.user.client.Timer; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.Window.ClosingEvent; import com.google.gwt.user.client.Window.ClosingHandler; import com.google.gwt.user.client.Window.Navigator; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.RootPanel; import com.google.inject.Inject; // TODO: Auto-generated Javadoc /** * The Class AppStarterDefault. * * @author danigb@gmail.com * @author vjrj@ourproject.org (Vicente J. Ruiz Jurado) */ public class AppStarterDefault implements AppStarter { /** The event bus. */ private final EventBus eventBus; /** The prefetch utilities. */ private final PrefetchUtilities prefetchUtilities; /** The res. */ private final CommonResources res; /** The session. */ private final Session session; /** The site service. */ private final SiteServiceAsync siteService; /** * Instantiates a new app starter default. * * @param session * the session * @param siteService * the site service * @param eventBus * the event bus * @param prefetchUtilities * the prefetch utilities * @param res * the res */ @Inject public AppStarterDefault(final Session session, final SiteServiceAsync siteService, final EventBus eventBus, final PrefetchUtilities prefetchUtilities, final CommonResources res) { this.session = session; this.siteService = siteService; this.eventBus = eventBus; this.prefetchUtilities = prefetchUtilities; this.res = res; Window.addWindowClosingHandler(new ClosingHandler() { @Override public void onWindowClosing(final ClosingEvent event) { eventBus.fireEvent(new AppStopEvent()); } }); } /** * Check navigator compatibility. * * @param navSupport * the nav support */ private void checkNavigatorCompatibility(final NavigatorSupport navSupport) { if (!SiteParameters.checkUA()) { // htmlunit server parsing navSupport.onSupported(); } else { // http://www.useragentstring.com/pages/useragentstring.php final String userAgent = Navigator.getUserAgent().toLowerCase(); Log.info("User agent: " + userAgent); if (UserAgent.isFirefox() || UserAgent.isWebkit() || UserAgent.isAndroid() || UserAgent.isChrome() || UserAgent.isSafari() || UserAgent.isMobileWebkit()) { navSupport.onSupported(); } else { navSupport.onNotSupported(); } } } /** * Gets the inits the data. * * @return the inits the data */ private void getInitData() { siteService.getInitData(session.getUserHash(), new AsyncCallback<InitDataDTO>() { private void continueStart(final InitDataDTO initData) { eventBus.fireEvent(new AppStartEvent(initData)); } private void hideInitialPanels() { final RootPanel loadingElement = RootPanel.get("k-home-loading"); if (loadingElement != null) { loadingElement.setVisible(false); } } @Override public void onFailure(final Throwable error) { eventBus.fireEvent(new ProgressHideEvent()); eventBus.fireEvent( new UserNotifyEvent(NotifyLevel.error, "Error fetching initial data from Kune server")); Log.debug(error.getMessage()); hideInitialPanels(); } @Override public void onSuccess(final InitDataDTO initData) { session.setInitData(initData); session.setCurrentUserInfo(initData.getUserInfo(), null); hideInitialPanels(); checkNavigatorCompatibility(new NavigatorSupport() { @Override public void onNotSupported() { NotifyUser.askConfirmation(res.important32(), "Your browser is currently unsupported", "Please, use a free/libre modern navigator like " + TextUtils .generateHtmlLink(CoreConstants.MOZILLA_FF_LINK, "Mozilla Firefox") + " instead. Continue anyway?", new SimpleResponseCallback() { @Override public void onCancel() { WindowUtils.changeHref(CoreConstants.MOZILLA_FF_LINK); } @Override public void onSuccess() { continueStart(initData); } }); } @Override public void onSupported() { continueStart(initData); } }); } }); } /* * (non-Javadoc) * * @see cc.kune.core.client.init.AppStarter#start() */ @Override public void start() { prefetchUtilities.preFetchImpImages(); getInitData(); final Timer prefetchTimer = new Timer() { @Override public void run() { prefetchUtilities.doTasksDeferred(); } }; prefetchTimer.schedule(20000); } }