// Written by Mike Frysinger <vapier@gmail.com>. Released into the public domain. Suck it.
-function Mpc(socket, cb_update_state) {
+function Mpc(socket, cb_update_state, debug_enabled) {
this._socket = socket;
this._cb_update_state = cb_update_state;
+ this._debug_enabled = debug_enabled;
this._queue = ['init'];
+ this._recv_buffer = [];
+ this._recv_buffer_last = 0;
this.state = {};
}
-Mpc.log = function(msg, obj) {
- console.log('mpc: ' + msg, obj);
+Mpc.prototype.log = function(lvl, msg, obj) {
+ if (this._debug_enabled & lvl)
+ console.log('mpc: ' + msg, obj);
+}
+
+Mpc.prototype.err = function(msg, obj) {
+ console.error('mpc: ' + msg, obj);
+}
+
+Mpc.prototype.set_debug = function(val) {
+ this._debug_enabled = val;
}
Mpc.prototype.send = function(msg) {
+ var _this = this;
this._queue.push(msg);
this._socket.send(msg, function(x) {
- Mpc.log('send: ' + msg + ':', x);
+ _this.log(0x1, 'send: ' + msg + ':', x);
+ });
+}
+
+Mpc.prototype._parse_result = function(lines) {
+ var state = {};
+ var keys = [];
+ var key, val, i;
+
+ lines.forEach(function(line) {
+ i = line.indexOf(':');
+ if (i == -1)
+ return; // Ignores the OK line
+ key = line.substr(0, i);
+ keys.push(key);
+ val = line.substr(i + 2);
+ state[key] = val;
});
+
+ return {
+ 'state': state,
+ 'keys': keys,
+ };
}
Mpc.prototype.recv_msg = function(lines) {
- curr = this._queue.shift();
- Mpc.log('recv: [' + curr + ']:', lines.join('\n'));
+ var state, keys, ret;
+ var curr = this._queue.shift();
+ this.log(0x2, 'recv: [' + curr + ']:', lines.join('\n'));
+ if (lines[0].substr(0, 4) == 'ACK ')
+ this.err(curr, lines.join('\n'));
curr = curr.split(' ');
switch (curr[0]) {
- // Needs to return a list of dicts (see above for dicts).
- //case 'playlistinfo':
+ case 'playlistinfo':
+ var i = 2, playlist = [], song;
+ while (i < lines.length) {
+ if (lines[i].substr(0, 5) == 'file:') {
+ song = this._parse_result(lines.splice(0, i + 1)).state;
+ playlist = playlist.concat(song);
+ i = 0;
+ } else
+ ++i;
+ }
+ this.state.Playlist = playlist;
+ this._cb_update_state(this.state);
+ break;
+
case 'currentsong':
+ this.state.Currentsong = this._parse_result(lines).state;
+ this._cb_update_state(this.state);
+ break;
+
case 'stats':
case 'status':
- state = {};
- lines.forEach(function(line) {
- i = line.indexOf(':');
- if (i == -1)
- return; // Ignores the OK line
- key = line.substr(0, i);
- val = line.substr(i + 2);
- state[key] = val;
+ ret = this._parse_result(lines);
+ state = ret.state;
+ keys = ret.keys;
+
+ // When mpd is stopped, it gives us back crap values for some things.
+ if ('state' in state && state.state == 'stop') {
+ if ('volume' in state && state.volume == '-1')
+ keys.splice(keys.indexOf('volume'), 1);
+ }
+ // Now merge the current state with the previous one so that we don't
+ // lose information like volume or song position.
+ var curr_state = this.state;
+ keys.forEach(function(key) {
+ curr_state[key] = state[key];
});
- this.state = state;
- this._cb_update_state(state);
+
+ this._cb_update_state(curr_state);
break;
+
default:
this._cb_update_state(lines, curr);
break;
Mpc.prototype.recv = function(msg) {
/* We can get back a bunch of responses in a row, so parse them out */
- /* XXX: Do we have to handle partial reads ? like long playlists ... */
- lines = msg.split('\n');
+ var lines = this._recv_buffer = this._recv_buffer.concat(msg.split('\n'));
var i = 0;
while (i < lines.length) {
- if (lines[i] == 'OK' || lines[i].substr(0, 3) == 'OK ') {
+ if (lines[i] == 'OK' || lines[i].substr(0, 3) == 'OK ' ||
+ lines[i].substr(0, 4) == 'ACK ') {
this.recv_msg(lines.splice(0, i + 1));
i = 0;
} else
++i;
}
+
+ if (lines.length && this._recv_buffer_last != lines.length) {
+ // Keep sucking in data so long as more exists.
+ this._recv_buffer_last = lines.length;
+ this._socket.poll();
+ } else
+ this._recv_buffer_last = lines.length;
}
/*
Mpc.__make_send_arg1 = function(cmd) {
return function(a1) {
if (a1 === undefined)
- Mpc.log(cmd + ': function requires one argument');
+ this.err(cmd + ': function requires one argument');
else
this.send(cmd + ' ' + a1);
}
Mpc.__make_send_arg2 = function(cmd) {
return function(a1, a2) {
if (a1 === undefined || a2 === undefined)
- Mpc.log(cmd + ': function requires two arguments');
+ this.err(cmd + ': function requires two arguments');
else
this.send(cmd + ' ' + a1 + ' ' + a2);
}
}
+Mpc.__make_send_arg3 = function(cmd) {
+ return function(a1, a2, a3) {
+ if (a1 === undefined || a2 === undefined || a3 == undefined)
+ this.err(cmd + ': function requires three arguments');
+ else
+ this.send(cmd + ' ' + a1 + ' ' + a2 + ' ' + a3);
+ }
+}
+
Mpc.__make_send_opt = function(cmd) {
return function(arg) {
if (arg === undefined)
if (arg >= min && arg <= max)
this.send(cmd + ' ' + arg);
else
- Mpc.log(cmd + ': arg must be [' + min + ',' + max + '] but got "' + arg + '"');
+ this.err(cmd + ': arg must be [' + min + ',' + max + '] but got "' + arg + '"');
};
}
// consume {STATE}
Mpc.prototype.consume = Mpc.__make_send_range('consume', 0, 1, 1);
// crossfade {SECONDS}
-Mpc.prototype.consume = Mpc.__make_send_arg1('crossfade');
+Mpc.prototype.crossfade = Mpc.__make_send_arg1('crossfade');
// mixrampdb {deciBels}
Mpc.prototype.mixrampdb = Mpc.__make_send_arg1('mixrampdb');
// mixrampdelay {SECONDS|nan}
// seekid {SONGID} {TIME}
Mpc.prototype.seekid = Mpc.__make_send_arg2('seekid');
// seekcur {TIME}
-Mpc.prototype.seekcur = Mpc.__make_send_arg1('seek');
+Mpc.prototype.seekcur = Mpc.__make_send_arg1('seekcur');
// stop
Mpc.prototype.stop = Mpc.__make_send_void('stop');
+/*
+ * The current playlist
+ * http://www.musicpd.org/doc/protocol/ch03s04.html
+ */
+
+// add {URI}
+Mpc.prototype.add = Mpc.__make_send_arg1('add');
+// addid {URI} [POSITION]
+// TODO: handle position
+Mpc.prototype.addid = Mpc.__make_send_arg1('addid');
+// clear
+Mpc.prototype.clear = Mpc.__make_send_void('clear');
+// delete [{POS} | {START:END}]
+Mpc.prototype.delete = Mpc.__make_send_arg1('delete');
+// deleteid {SONGID}
+Mpc.prototype.deleteid = Mpc.__make_send_arg1('deleteid');
+// move [{FROM} | {START:END}] {TO}
+Mpc.prototype.move = Mpc.__make_send_arg2('move');
+// moveid {FROM} {TO}
+Mpc.prototype.moveid = Mpc.__make_send_arg2('moveid');
+// playlist
+Mpc.prototype.playlist = Mpc.__make_send_void('playlist');
+// playlistfind {TAG} {NEEDLE}
+Mpc.prototype.playlistfind = Mpc.__make_send_arg2('playlistfind');
+// playlistid {SONGID}
+Mpc.prototype.playlistid = Mpc.__make_send_arg1('playlistid');
+// playlistinfo [[SONGPOS] | [START:END]]
+Mpc.prototype.playlistinfo = Mpc.__make_send_opt('playlistinfo');
+// playlistsearch {TAG} {NEEDLE}
+Mpc.prototype.playlistsearch = Mpc.__make_send_arg2('playlistsearch');
+// plchanges {VERSION}
+Mpc.prototype.plchanges = Mpc.__make_send_arg1('plchanges');
+// plchangesposid {VERSION}
+Mpc.prototype.plchangesposid = Mpc.__make_send_arg1('plchangesposid');
+// prio {PRIORITY} {START:END...}
+Mpc.prototype.prio = Mpc.__make_send_arg2('prio');
+// prioid {PRIORITY} {ID...}
+Mpc.prototype.prioid = Mpc.__make_send_arg2('prioid');
+// shuffle [START:END]
+Mpc.prototype.shuffle = Mpc.__make_send_opt('shuffle');
+// swap {SONG1} {SONG2}
+Mpc.prototype.swap = Mpc.__make_send_arg2('swap');
+// swapid {SONG1} {SONG2}
+Mpc.prototype.swapid = Mpc.__make_send_arg2('swapid');
+
+/*
+ * Stored playlists
+ * http://www.musicpd.org/doc/protocol/ch03s05.html
+ */
+
+// listplaylist {NAME}
+Mpc.prototype.listplaylist = Mpc.__make_send_arg1('listplaylist');
+// listplaylistinfo {NAME}
+Mpc.prototype.listplaylistinfo = Mpc.__make_send_arg1('listplaylistinfo');
+// listplaylists
+Mpc.prototype.listplaylists = Mpc.__make_send_void('listplaylists');
+// load {NAME} [START:END]
+// TODO: handle optional start:end
+Mpc.prototype.load = Mpc.__make_send_arg1('load');
+// playlistadd {NAME} {URI}
+Mpc.prototype.playlistadd = Mpc.__make_send_arg2('playlistadd');
+// playlistclear {NAME}
+Mpc.prototype.playlistclear = Mpc.__make_send_arg1('playlistclear');
+// playlistdelete {NAME} {SONGPOS}
+Mpc.prototype.playlistdelete = Mpc.__make_send_arg2('playlistdelete');
+// playlistmove {NAME} {SONGID} {SONGPOS}
+Mpc.prototype.playlistmove = Mpc.__make_send_arg3('playlistmove');
+// rename {NAME} {NEW_NAME}
+Mpc.prototype.rename = Mpc.__make_send_arg2('rename');
+// rm {NAME}
+Mpc.prototype.rm = Mpc.__make_send_arg1('rm');
+// save {NAME}
+Mpc.prototype.save = Mpc.__make_send_arg1('save');
+
+/*
+ * The music database
+ * http://www.musicpd.org/doc/protocol/ch03s06.html
+ */
+
/*
* Connection settings
* http://www.musicpd.org/doc/protocol/ch03s08.html
Mpc.prototype.password = Mpc.__make_send_arg1('password');
// ping
Mpc.prototype.ping = Mpc.__make_send_void('ping');
+
+/*
+ * Audio output devices
+ * http://www.musicpd.org/doc/protocol/ch03s09.html
+ */
+
+// disableoutput {ID}
+Mpc.prototype.disableoutput = Mpc.__make_send_arg1('disableoutput');
+// enableoutput {ID}
+Mpc.prototype.enableoutput = Mpc.__make_send_arg1('enableoutput');
+// outputs
+Mpc.prototype.outputs = Mpc.__make_send_void('outputs');
+
+/*
+ * Reflection
+ * http://www.musicpd.org/doc/protocol/ch03s10.html
+ */
+
+// config
+Mpc.prototype.config = Mpc.__make_send_void('config');
+// commands
+Mpc.prototype.commands = Mpc.__make_send_void('commands');
+// notcommands
+Mpc.prototype.notcommands = Mpc.__make_send_void('notcommands');
+// tagtypes
+Mpc.prototype.tagtypes = Mpc.__make_send_void('tagtypes');
+// urlhandlers
+Mpc.prototype.urlhandlers = Mpc.__make_send_void('urlhandlers');
+// decoders
+Mpc.prototype.decoders = Mpc.__make_send_void('decoders');
+
+/*
+ * Client to client
+ * http://www.musicpd.org/doc/protocol/ch03s11.html
+ */
+
+// subscribe {NAME}
+Mpc.prototype.subscribe = Mpc.__make_send_arg1('subscribe');
+// unsubscribe {NAME}
+Mpc.prototype.unsubscribe = Mpc.__make_send_arg1('unsubscribe');
+// channels
+Mpc.prototype.channels = Mpc.__make_send_void('channels');
+// readmessages
+Mpc.prototype.readmessages = Mpc.__make_send_void('readmessages');
+// sendmessage {CHANNEL} {TEXT}
+Mpc.prototype.sendmessage = Mpc.__make_send_arg2('sendmessage');
git.wh0rd.org / chrome-ext / music-player-client.git / blobdiff