eldonilo/mpd: lib.js annotate

annotate lib.js @ 0:363600705376 default tip

Initial commit.

author	Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date	Tue, 23 Aug 2011 18:43:15 -0700
parents
children

rev	line source
0 363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	1 var net = require('net');
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	2 var sys = require('sys');
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	3
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	4 function MPD(server, port) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	5 if (!port) port = '6600';
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	6 if (!server) server = '::';
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	7
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	8 this.connect(port, server);
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	9 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	10
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	11 MPD.prototype = {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	12 stream: null,
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	13 is_connected: false,
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	14 updateTimer: null,
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	15
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	16 status: {},
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	17 cs: {},
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	18
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	19 _callbacks: {},
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	20
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	21 _callback: function() {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	22 this._callback = null;
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	23 },
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	24
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	25 close: function() {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	26 this.stream.end();
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	27 this.is_connected = false;
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	28 },
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	29
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	30 connect: function(port, server) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	31 if (this.is_connected == true) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	32 this.close();
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	33 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	34
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	35 this.stream = net.createConnection(port, server);
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	36
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	37 this.stream.setEncoding('utf8');
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	38
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	39 this.stream.on('connect', this.connected());
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	40 this.stream.on('data', this.data());
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	41 this.stream.on('close', this.closed());
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	42
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	43 this.stream.on('end', function() {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	44 this.end();
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	45 });
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	46 },
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	47
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	48 connected: function() {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	49 var self = this;
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	50
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	51 return function() {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	52 self.is_connected = true;
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	53 if (self.debug) console.log('MPD connection opened');
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	54
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	55 /*self.updateTimer = setInterval(function() {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	56 if (self.is_connected == true) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	57 self.send('currentsong', function(cs) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	58 for (var v in cs) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	59 if (self.cs[v] != cs[v]) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	60 self.callback(v, cs[v]);
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	61 self.cs[v] = cs[v];
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	62 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	63 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	64 });
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	65
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	66 self.send('status', function(status) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	67 for (var v in status) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	68 if (self.status[v] != status[v]) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	69 self.callback(v, status[v]);
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	70 self.status[v] = status[v];
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	71 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	72 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	73 });
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	74 } else {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	75 clearInterval(self.updateTimer);
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	76 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	77 }, 1000);*/
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	78
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	79 self.callback('connect');
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	80 };
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	81 },
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	82
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	83 data: function() {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	84 var self = this;
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	85
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	86 var packet = [];
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	87
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	88 return function(data) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	89 var data = data.toString();
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	90 var commands = data.split('\n');
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	91
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	92 for (var i = 0; i < commands.length; i++) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	93 if (commands[i].length >= 2) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	94 packet.push(commands[i]);
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	95
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	96 var command = commands[i].split(' ');
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	97
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	98 switch (command[0]) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	99 case 'ACK':
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	100 case 'OK':
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	101 if (command[1] == 'MPD') {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	102 self.version = command[2];
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	103 } else {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	104 self._callback.call(self, self._parsePacket(packet));
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	105 packet = [];
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	106 this._callback = null;
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	107 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	108 break;
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	109 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	110 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	111 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	112 };
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	113 },
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	114
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	115 closed: function() {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	116 var self = this;
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	117
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	118 return function(had_error) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	119 if (self.debug) console.log('MPD connection closed');
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	120 self.callback('close');
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	121 };
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	122 },
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	123
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	124 _parsePacket: function(packet) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	125 var p = {};
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	126
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	127 for (var i = 0; i < packet.length; i++) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	128 var regx = /^(\w+):\s?(.*)$/i;
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	129 var result = regx.exec(packet[i]);
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	130
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	131 if (result !== null) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	132 p[result[1]] = result[2];
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	133 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	134 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	135
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	136 return p;
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	137 },
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	138
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	139 send: function(str, cb) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	140 this._callback = cb;
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	141 this.stream.write(str + '\n');
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	142 },
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	143
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	144 on: function(type, cb) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	145 if (!this._callbacks[type]) this._callbacks[type] = [];
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	146
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	147 this._callbacks[type].push(cb);
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	148 },
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	149
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	150 callback: function(type, data) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	151 if (this._callbacks[type]) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	152 for (var c = 0; c < this._callbacks[type].length; c++) {
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	153 this._callbacks[type][c].call(this, data);
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	154 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	155 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	156 }
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	157 };
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	158
363600705376 Initial commit. Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> parents: diff changeset	159 module.exports = MPD;