linda.min.js

// Linda.js v1.1.0 (rocketio v0.3.3)
// https://github.com/shokai/sinatra-rocketio-linda
// (c) 2013 Sho Hashimoto <hashimoto@shokai.org>
// The MIT License
var Linda=function(io,opts){var self=this;this.io=null;if(io===null||typeof io==="undefined"){this.io=(new RocketIO).connect()}else{this.io=io}this.opts=opts||{};this.TupleSpace=function(name){if(name===null||typeof name!=="string")name="__default__";this.name=name;this.linda=self;var space=this;var make_callback_id=function(){return new Date-0+"_"+Math.floor(Math.random()*1e6)};this.write=function(tuple,opts){if(tuple===null||typeof tuple!=="object")return;if(opts===null||typeof opts==="undefined")opts={};self.io.push("__linda_write",[space.name,tuple,opts])};this.read=function(tuple,callback){if(tuple===null||typeof tuple!=="object")return;if(typeof callback!=="function")return;var callback_id=make_callback_id();self.io.once("__linda_read_callback_"+callback_id,function(data){callback(data.tuple,data.info)});self.io.push("__linda_read",[space.name,tuple,callback_id])};this.take=function(tuple,callback){if(tuple===null||typeof tuple!=="object")return;if(typeof callback!=="function")return;var callback_id=make_callback_id();self.io.once("__linda_take_callback_"+callback_id,function(data){callback(data.tuple,data.info)});self.io.push("__linda_take",[space.name,tuple,callback_id])};this.watch=function(tuple,callback){if(tuple===null||typeof tuple!=="object")return;if(typeof callback!=="function")return;var callback_id=make_callback_id();self.io.on("__linda_watch_callback_"+callback_id,function(data){callback(data.tuple,data.info)});self.io.push("__linda_watch",[space.name,tuple,callback_id])};this.list=function(tuple,callback){if(tuple===null||typeof tuple!=="object")return;if(typeof callback!=="function")return;var callback_id=make_callback_id();self.io.on("__linda_list_callback_"+callback_id,function(list){callback(list)});self.io.push("__linda_list",[space.name,tuple,callback_id])}}};var RocketIO=function(opts){(new EventEmitter).apply(this);if(typeof opts==="undefined"||opts===null)opts={};this.type=opts.type||null;this.session=opts.session||null;this.channel=null;if(typeof opts.channel!=="undefined"&&opts.channel!==null){this.channel=""+opts.channel}var setting={};this.io=null;var self=this;var ws_close_timer=null;self.on("__connect",function(session_id){self.session=session_id;self.io.push("__channel_id",self.channel);self.emit("connect")});this.connect=function(url){if(typeof url==="string"){$.getJSON(url+"/rocketio/settings",function(res){setting=res;connect_io()});return self}else{return connect_io()}};var connect_io=function(){self.io=function(){if(self.type==="comet")return;if(typeof WebSocketIO!=="function")return;var io=new WebSocketIO;if(typeof setting.websocket==="string")io.url=setting.websocket;io.session=self.session;return io.connect()}()||function(){if(typeof CometIO!=="function")return;var io=new CometIO;if(typeof setting.comet==="string")io.url=setting.comet;io.session=self.session;return io.connect()}();if(typeof self.io==="undefined"){setTimeout(function(){self.emit("error","WebSocketIO and CometIO are not available")},100);return self}if(self.io.url.match(/^ws:\/\/.+/))self.type="websocket";else if(self.io.url.match(/cometio/))self.type="comet";else self.type="unknown";self.io.on("*",function(event_name,args){if(event_name==="connect")event_name="__connect";self.emit(event_name,args)});ws_close_timer=setTimeout(function(){self.close();self.type="comet";connect_io()},3e3);self.once("connect",function(){if(ws_close_timer)clearTimeout(ws_close_timer);ws_close_timer=null});return self};this.close=function(){self.io.close()};this.push=function(type,data){self.io.push(type,data)}};var CometIO=function(url,opts){(new EventEmitter).apply(this);if(typeof opts==="undefined"||opts===null)opts={};this.url=url||"";this.session=opts.session||null;var running=false;var self=this;var post_queue=[];var flush=function(){if(!running||post_queue.length<1)return;var post_data={json:JSON.stringify({session:self.session,events:post_queue})};$.ajax({url:self.url,data:post_data,success:function(data){},error:function(req,stat,e){self.emit("error","CometIO push error")},complete:function(e){},type:"POST",dataType:"json",timeout:1e4});post_queue=[]};setInterval(flush,1e3);this.push=function(type,data){if(!running||!self.session){self.emit("error","CometIO not connected");return}post_queue.push({type:type,data:data})};this.connect=function(){if(running)return self;self.on("__session_id",function(session){self.session=session;self.emit("connect",self.session)});running=true;get();return self};this.close=function(){running=false;self.removeListener("__session_id")};var get=function(){if(!running)return;$.ajax({url:self.url+"?"+(new Date-0),data:{session:self.session},success:function(data_arr){if(data_arr!==null&&typeof data_arr=="object"&&!!data_arr.length){for(var i=0;i<data_arr.length;i++){var data=data_arr[i];if(data)self.emit(data.type,data.data)}}get()},error:function(req,stat,e){self.emit("error","CometIO get error");setTimeout(get,1e4)},complete:function(e){},type:"GET",dataType:"json",timeout:13e4})}};var WebSocketIO=function(url,opts){(new EventEmitter).apply(this);if(typeof opts==="undefined"||opts===null)opts={};this.url=url||"";this.session=opts.session||null;this.websocket=null;this.connecting=false;var reconnect_timer_id=null;var running=false;var self=this;self.on("__session_id",function(session_id){self.session=session_id;self.emit("connect",self.session)});this.connect=function(){if(typeof WebSocket==="undefined"){self.emit("error","websocket not exists in this browser");return null}self.running=true;var url=self.session?self.url+"/session="+self.session:self.url;self.websocket=new WebSocket(url);self.websocket.onmessage=function(e){var data_=null;try{data_=JSON.parse(e.data)}catch(e){self.emit("error","WebSocketIO data parse error")}if(!!data_)self.emit(data_.type,data_.data)};self.websocket.onclose=function(){if(self.connecting){self.connecting=false;self.emit("disconnect")}if(self.running){reconnect_timer_id=setTimeout(self.connect,1e4)}};self.websocket.onopen=function(){self.connecting=true};return self};this.close=function(){clearTimeout(reconnect_timer_id);self.running=false;self.websocket.close()};this.push=function(type,data){if(!self.connecting){self.emit("error","websocket not connected");return}self.websocket.send(JSON.stringify({type:type,data:data,session:self.session}))}};var EventEmitter=function(){var self=this;this.apply=function(target,prefix){if(!prefix)prefix="";for(var func in self){if(self.hasOwnProperty(func)&&func!=="apply"){target[prefix+func]=this[func]}}};this.__events=new Array;this.on=function(type,listener,opts){if(typeof listener!=="function")return;var event_id=self.__events.length>0?1+self.__events[self.__events.length-1].id:0;var params={id:event_id,type:type,listener:listener};for(i in opts){if(!params[i])params[i]=opts[i]}self.__events.push(params);return event_id};this.once=function(type,listener){self.on(type,listener,{once:true})};this.emit=function(type,data){for(var i=0;i<self.__events.length;i++){var e=self.__events[i];switch(e.type){case type:e.listener(data);if(e.once)e.type=null;break;case"*":e.listener(type,data);if(e.once)e.type=null;break}}self.removeListener()};this.removeListener=function(id_or_type){for(var i=self.__events.length-1;i>=0;i--){var e=self.__events[i];switch(typeof id_or_type){case"number":if(e.id===id_or_type)self.__events.splice(i,1);break;case"string":case"object":if(e.type===id_or_type)self.__events.splice(i,1);break}}}};if(typeof module!=="undefined"&&typeof module.exports!=="undefined"){module.exports=EventEmitter}