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server.js
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var io = require('socket.io'),
express = require('express'),
objects = [],
ACTION_TYPE = {'REQUEST_CREATE' : 'REQUEST_CREATE', // クライアントからの作成要求
'CREATE' : 'CREATE' , // クラインとへの作成指示(REQUEST_CREATE後)
'REQUEST_LOCK' : 'REQUEST_LOCK' , // サーバへのロック要求
'LOCK' : 'LOCK' , // クラインとへのロック指示(REQUEST_EDIT)要求クライアント以外に送るもの
'REQUEST_EDIT' : 'REQUEST_EDIT' , // サーバへの編集要求
'EDIT' : 'EDIT' // クライントへの編集指示(REQUEST_EDIT後)
};
var app = express.createServer();
app.configure(function(){
app.set('views', __dirname + '/views')
.use(express.static(__dirname + '/public'))
.set("view options", { layout: false })
.get('/', function(req, res) {
res.render('svg.ejs');
});
});
app.listen(8000);
var socket = io.listen(app);
socket.on('connection', function(client){
client.on('message', function(msg) {onMessage(msg, client);});
client.on('disconnect', function() {onDisconnect(client)});
});
function addMessage(msg)
{
msg.id = objects.length + 1;
msg.createdAt = nowDate();
if (msg.option.color == '') {
msg.option.color = 'black';
}
objects.push(msg);
return msg;
}
function onDisconnect(client)
{
msg = {"data" : client. sessionId+"が切断されました",
"type" : ACTION_TYPE.STGING,
"option" : {"color" : "red"},
"createdAt" : nowDate()} ;
}
function onMessage(msg, client)
{
/* サーバ側のオブジェクトのstatus、attrかえる処理未実装 */
switch (msg.action) {
case ACTION_TYPE.REQUEST_CREATE:
var obj = {"id" : objects.length + 1,
"action" : ACTION_TYPE.CREATE,
"type" : msg.type,
"status" : '',
"clientId" : client. sessionId};
objects.push(obj);
client.send(obj);
break;
case ACTION_TYPE.REQUEST_LOCK:
// fix me
var obj = {"action" : ACTION_TYPE.LOCK,
"id" : msg.id};
break;
case ACTION_TYPE.REQUEST_EDIT:
var obj = {"action": ACTION_TYPE.EDIT,
"attr" : msg.attr,
"id" : msg.id};
break;
}
client.broadcast(obj);
}
function nowDate(){
d = new Date();
return d.getFullYear() + "-" + (d.getMonth()+1) + "-" + d.getDate()+ " "+ d.getHours()+':' +d.getMinutes()+':' + d.getSeconds();
}
//}}}