jaroslav@931: /**
jaroslav@931:  * Back 2 Browser Bytecode Translator
jaroslav@931:  * Copyright (C) 2012 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jaroslav@931:  *
jaroslav@931:  * This program is free software: you can redistribute it and/or modify
jaroslav@931:  * it under the terms of the GNU General Public License as published by
jaroslav@931:  * the Free Software Foundation, version 2 of the License.
jaroslav@931:  *
jaroslav@931:  * This program is distributed in the hope that it will be useful,
jaroslav@931:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jaroslav@931:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jaroslav@931:  * GNU General Public License for more details.
jaroslav@931:  *
jaroslav@931:  * You should have received a copy of the GNU General Public License
jaroslav@931:  * along with this program. Look for COPYING file in the top folder.
jaroslav@931:  * If not, see http://opensource.org/licenses/GPL-2.0.
jaroslav@931:  */
jaroslav@931: package org.apidesign.bck2brwsr.demo.twitter;
jaroslav@931: 
jaroslav@931: import java.util.Arrays;
jaroslav@931: import java.util.List;
jaroslav@931: import org.apidesign.bck2brwsr.htmlpage.api.*;
jaroslav@931: import org.apidesign.bck2brwsr.htmlpage.api.Page;
jaroslav@931: import org.apidesign.bck2brwsr.htmlpage.api.Property;
jaroslav@931: import org.apidesign.bck2brwsr.htmlpage.api.ComputedProperty;
jaroslav@931: 
jaroslav@931: /** Controller class for access to Twitter.
jaroslav@931:  * 
jaroslav@931:  * @author Jaroslav Tulach
jaroslav@931:  */
jaroslav@931: @Page(xhtml="index.html", className="TwitterModel", properties={
jaroslav@931:     @Property(name="savedLists", type=TwitterClient.Twttrs.class, array = true),
jaroslav@931:     @Property(name="activeTweetersName", type=String.class),
jaroslav@931:     @Property(name="modifiedList", type=TwitterClient.Twttrs.class),
jaroslav@931:     @Property(name="userNameToAdd", type=String.class),
jaroslav@947:     @Property(name="currentTweets", type=TwitterClient.Twt.class, array = true)
jaroslav@931: })
jaroslav@931: public class TwitterClient {
jaroslav@931:     @Model(className = "Tweeters", properties = {
jaroslav@931:         @Property(name="name", type = String.class),
jaroslav@931:         @Property(name="userNames", type = String.class, array = true)
jaroslav@931:     })
jaroslav@931:     static class Twttrs {
jaroslav@931:     }
jaroslav@947:     @Model(className = "Tweet", properties = {
jaroslav@947:         @Property(name = "from_user", type = String.class),
jaroslav@947:         @Property(name = "from_user_id", type = int.class),
jaroslav@947:         @Property(name = "profile_image_url", type = String.class),
jaroslav@947:         @Property(name = "text", type = String.class),
jaroslav@948:         @Property(name = "created_at", type = String.class),
jaroslav@947:     })
jaroslav@947:     static final class Twt {
jaroslav@947:     }
jaroslav@947:     @Model(className = "TwitterQuery", properties = {
jaroslav@947:         @Property(array = true, name = "results", type = Twt.class)
jaroslav@947:     })
jaroslav@947:     public static final class TwttrQr {
jaroslav@947:     }
jaroslav@947:     
jaroslav@954:     @OnReceive(url="{root}/search.json?{query}&callback={me}", jsonp="me")
jaroslav@947:     static void queryTweets(TwitterModel page, TwitterQuery q) {
jaroslav@947:         page.getCurrentTweets().clear();
jaroslav@947:         page.getCurrentTweets().addAll(q.getResults());
jaroslav@947:     }
jaroslav@947:     
jaroslav@949:     @OnPropertyChange("activeTweeters")
jaroslav@947:     static void refreshTweets(TwitterModel model) {
jaroslav@947:         Tweeters people = model.getActiveTweeters();
jaroslav@947:         StringBuilder sb = new StringBuilder();
jaroslav@954:         sb.append("rpp=25&q=");
jaroslav@947:         String sep = "";
jaroslav@947:         for (String p : people.getUserNames()) {
jaroslav@947:             sb.append(sep);
jaroslav@947:             sb.append("from:");
jaroslav@947:             sb.append(p);
jaroslav@947:             sep = " OR ";
jaroslav@947:         }
jaroslav@954:         model.queryTweets("http://search.twitter.com", sb.toString());
jaroslav@947:     }
jaroslav@931:     
jaroslav@931:     private static Tweeters tweeters(String listName, String... userNames) {
jaroslav@931:         Tweeters t = new Tweeters();
jaroslav@931:         t.setName(listName);
jaroslav@931:         t.getUserNames().addAll(Arrays.asList(userNames));
jaroslav@931:         return t;
jaroslav@931:     }
jaroslav@931:     
jaroslav@931:     static {
jaroslav@931:         final TwitterModel model = new TwitterModel();
jaroslav@931:         final List<Tweeters> svdLst = model.getSavedLists();
jaroslav@931:         svdLst.add(tweeters("API Design", "JaroslavTulach"));
jaroslav@931:         svdLst.add(tweeters("Celebrities", "JohnCleese", "MCHammer", "StephenFry", "algore", "StevenSanderson"));
jaroslav@931:         svdLst.add(tweeters("Microsoft people", "BillGates", "shanselman", "ScottGu"));
jaroslav@931:         svdLst.add(tweeters("NetBeans", "GeertjanW","monacotoni", "NetBeans"));
jaroslav@931:         svdLst.add(tweeters("Tech pundits", "Scobleizer", "LeoLaporte", "techcrunch", "BoingBoing", "timoreilly", "codinghorror"));
jaroslav@931: 
jaroslav@931:         model.setActiveTweetersName("NetBeans");
jaroslav@947: 
jaroslav@931:         model.applyBindings();
jaroslav@931:     }
jaroslav@931:     
jaroslav@931:     @ComputedProperty
jaroslav@931:     static Tweeters activeTweeters(String activeTweetersName, List<Tweeters> savedLists, Tweeters modifiedList) {
jaroslav@931:         if (modifiedList != null && modifiedList.getName() != null) {
jaroslav@931:             if (modifiedList.getName().equals(activeTweetersName)) {
jaroslav@931:                 return modifiedList;
jaroslav@931:             }
jaroslav@931:         }
jaroslav@931:         return findByName(savedLists, activeTweetersName);
jaroslav@931:     }
jaroslav@931:     
jaroslav@950:     @OnPropertyChange("activeTweetersName")
jaroslav@950:     static void clearModifiedList(TwitterModel m) {
jaroslav@950:         m.setModifiedList(null);
jaroslav@950:     }
jaroslav@950:     
jaroslav@931:     @ComputedProperty
jaroslav@931:     static boolean hasUnsavedChanges(Tweeters modifiedList) {
jaroslav@931:         return modifiedList != null;
jaroslav@931:     }
jaroslav@931:     
jaroslav@931:     @ComputedProperty
jaroslav@931:     static boolean userNameToAddIsValid(String userNameToAdd, String activeTweetersName, List<Tweeters> savedLists, Tweeters modifiedList) {
jaroslav@931:         Tweeters editingList = activeTweeters(activeTweetersName, savedLists, modifiedList);
jaroslav@931:         return editingList != null && userNameToAdd != null && 
jaroslav@931:             userNameToAdd.matches("[a-zA-Z0-9_]{1,15}") &&
jaroslav@931:             !editingList.getUserNames().contains(userNameToAdd);
jaroslav@931:     }
jaroslav@931:     
jaroslav@931:     @OnFunction
jaroslav@931:     static void deleteList(TwitterModel model) {
jaroslav@931:         final List<Tweeters> sl = model.getSavedLists();
jaroslav@931:         sl.remove(model.getActiveTweeters());
jaroslav@931:         if (sl.isEmpty()) {
jaroslav@931:             final Tweeters t = new Tweeters();
jaroslav@931:             t.setName("New");
jaroslav@931:             sl.add(t);
jaroslav@931:         }
jaroslav@931:         model.setActiveTweetersName(sl.get(0).getName());
jaroslav@931:     }
jaroslav@931:     
jaroslav@931:     @OnFunction
jaroslav@931:     static void saveChanges(TwitterModel model) {
jaroslav@931:         Tweeters t = findByName(model.getSavedLists(), model.getActiveTweetersName());
jaroslav@931:         int indx = model.getSavedLists().indexOf(t);
jaroslav@931:         assert indx != -1;
jaroslav@931:         model.getSavedLists().set(indx, model.getModifiedList());
jaroslav@931:         model.setModifiedList(null);
jaroslav@931:     }
jaroslav@931:     
jaroslav@931:     @OnFunction
jaroslav@931:     static void addUser(TwitterModel model) {
jaroslav@931:         String n = model.getUserNameToAdd();
jaroslav@931:         findModifiedList(model).getUserNames().add(n);
jaroslav@931:     }
jaroslav@931:     @OnFunction
jaroslav@931:     static void removeUser(String data, TwitterModel model) {
jaroslav@931:         findModifiedList(model).getUserNames().remove(data);
jaroslav@931:     }
jaroslav@931:     
jaroslav@931:     private static Tweeters findModifiedList(TwitterModel model) {
jaroslav@931:         if (model.getModifiedList() == null || model.getModifiedList().getName() == null) {
jaroslav@931:             model.setModifiedList(model.getActiveTweeters().clone());
jaroslav@931:         }
jaroslav@931:         return model.getModifiedList();
jaroslav@931:     }
jaroslav@931:     private static Tweeters findByName(List<Tweeters> list, String name) {
jaroslav@931:         for (Tweeters l : list) {
jaroslav@931:             if (l.getName() != null && l.getName().equals(name)) {
jaroslav@931:                 return l;
jaroslav@931:             }
jaroslav@931:         }
jaroslav@931:         return list.isEmpty() ? null : list.get(0);
jaroslav@931:     }
jaroslav@931: }