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.wave.client.kspecific.inboxcount; import org.waveprotocol.box.webclient.search.Digest; import org.waveprotocol.box.webclient.search.Search; import org.waveprotocol.box.webclient.search.Search.Listener; import org.waveprotocol.box.webclient.search.SimpleSearch; import cc.kune.common.client.log.Log; import cc.kune.core.client.events.InboxUnreadUpdatedEvent; import cc.kune.core.client.events.NewUserRegisteredEvent; import cc.kune.core.client.events.SndClickEvent; import cc.kune.core.client.events.UserSignInOrSignOutEvent; import cc.kune.core.client.events.UserSignInOrSignOutEvent.UserSignInOrSignOutHandler; import cc.kune.core.client.state.Session; import cc.kune.wave.client.kspecific.WaveClientProvider; import com.google.gwt.user.client.Timer; import com.google.inject.Inject; import com.google.web.bindery.event.shared.EventBus; // TODO: Auto-generated Javadoc /** * The Class InboxCountPresenter. * * @author vjrj@ourproject.org (Vicente J. Ruiz Jurado) */ public class InboxCountPresenter { /** * The Interface InboxCountView. * * @author vjrj@ourproject.org (Vicente J. Ruiz Jurado) */ public interface InboxCountView { /** * Blink. */ void blink(); /** * Sets the total. * * @param total * the new total */ void setTotal(int total); /** * Show count. * * @param show * the show */ void showCount(boolean show); } /** The current total. */ private int currentTotal; /** The event bus. */ private final EventBus eventBus; protected SimpleSearch search; /** The search listener. */ private final Listener searchListener; /** The session. */ private final Session session; // private final Session session; /** The update timer. */ private final Timer updateTimer; /** The view. */ private final InboxCountView view; /** * Instantiates a new inbox count presenter. * * @param view * the view * @param session * the session * @param eventBus * the event bus */ @Inject public InboxCountPresenter(final InboxCountView view, final Session session, final EventBus eventBus, final WaveClientProvider waveView) { this.view = view; this.session = session; this.eventBus = eventBus; currentTotal = Search.UNKNOWN_SIZE; updateTimer = new Timer() { @Override public void run() { update(search); } }; searchListener = new Listener() { private void log(final int index, final Digest diggest, final String msg) { // Log.info(msg + index + " - " + diggest.getTitle() + ": unread: " + // diggest.getUnreadCount()); } @Override public void onDigestAdded(final int index, final Digest diggest) { log(index, diggest, "Diggest added: "); shouldUpdate(); } @Override public void onDigestReady(final int index, final Digest diggest) { log(index, diggest, "Diggest ready: "); shouldUpdate(); } @Override public void onDigestRemoved(final int index, final Digest diggest) { log(index, diggest, "Diggest removed: "); shouldUpdate(); } @Override public void onStateChanged() { shouldUpdate(); } @Override public void onTotalChanged(final int total) { shouldUpdate(); } private void shouldUpdate() { updateTimer.schedule(3000); } }; session.onUserSignInOrSignOut(true, new UserSignInOrSignOutHandler() { @Override public void onUserSignInOrSignOut(final UserSignInOrSignOutEvent event) { final boolean logged = event.isLogged(); view.showCount(logged); if (logged) { search = waveView.get().getSearch(); search.addListener(searchListener); update(search); } else { if (search != null) search.removeListener(searchListener); } } }); eventBus.addHandler(NewUserRegisteredEvent.getType(), new NewUserRegisteredEvent.NewUserRegisteredHandler() { @Override public void onNewUserRegistered(final NewUserRegisteredEvent event) { sendNoticeToUser(); } }); } /** * Send notice to user. */ private void sendNoticeToUser() { view.blink(); SndClickEvent.fire(eventBus); } /** * Sets the total. * * @param total * the new total */ private void setTotal(final int total) { view.setTotal(total); final boolean show = session.isLogged() && total != Search.UNKNOWN_SIZE && total > 0; view.showCount(show); Log.info("Inbox count: Previous total: " + currentTotal + ", now total: " + total); final boolean greater = total > currentTotal; if (show && greater) { sendNoticeToUser(); } InboxUnreadUpdatedEvent.fire(eventBus, total, greater); currentTotal = total; } protected void update(final SimpleSearch search) { int total = 0; for (int i = 0, size = search.getMinimumTotal(); i < size; i++) { if (search.getState() == org.waveprotocol.box.webclient.search.Search.State.READY) { final Digest digest = search.getDigest(i); if (digest == null) { continue; } total += digest.getUnreadCount(); } else { // We are doing a search, so better not to update return; } } setTotal(total); } }