2 * The MIT License (MIT)
4 * Copyright (C) 2013 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 package org.apidesign.html.chatserver.client;
26 import net.java.html.json.ComputedProperty;
27 import net.java.html.json.Context;
28 import net.java.html.json.Function;
29 import net.java.html.json.Model;
30 import net.java.html.json.OnReceive;
31 import net.java.html.json.Property;
32 import org.apidesign.html.chatserver.model.Message;
33 import org.apidesign.html.chatserver.model.Query;
37 * @author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
39 @Model(className = "ChatModel", properties = {
40 @Property(name = "user", type = String.class),
41 @Property(name = "comment", type = String.class),
42 @Property(name = "msgs", type = Message.class, array = true)
46 static boolean sendEnabled(String user, String comment) {
47 boolean res = user != null && comment != null && !user.isEmpty() && !comment.isEmpty();
52 static void submit(ChatModel m) {
53 if (!sendEnabled(m.getUser(), m.getComment())) {
56 Message msg = new Message(CNTX);
57 msg.setUser(m.getUser());
58 msg.setComment(m.getComment());
62 @OnReceive(url = "/chat", method = "POST", data = Message.class)
63 static void postComment(ChatModel m, Message addedMessage) {
64 if (addedMessage.getComment().equals(m.getComment())) {
69 @OnReceive(url = "/chat?since=0")
70 static void initialRead(ChatModel m, Query q) {
72 m.getMsgs().addAll(q.getMessages());
76 @OnReceive(url = "/chat?since={since}")
77 static void updateMsgs(ChatModel m, Query q) {
78 m.getMsgs().addAll(q.getMessages());
82 private static void moreMessages(ChatModel m) {
84 for (Message msg : m.getMsgs()) {
85 if (now < msg.getSince()) {
89 m.updateMsgs("" + (now + 1));
92 static final Context CNTX = Context.findDefault(ChatClient.class);
94 ChatModel chm = new ChatModel(CNTX);
95 Message m = new Message(CNTX);
96 m.setComment("Waiting for messages from the server...");
101 // XXX: this should not be in static initializer -
102 // XXX: prevents unit testing!
104 } catch (Throwable ex) {