]>
git.wh0rd.org - chrome-ext/music-player-client.git/blob - js/mpc.js
ae013332e618a7700ae0e5a75f4d913c3f94f671
1 // Written by Mike Frysinger <vapier@gmail.com>. Released into the public domain. Suck it.
3 function Mpc(socket
, cb_update_state
, debug_enabled
) {
5 this._cb_update_state
= cb_update_state
;
6 this._debug_enabled
= debug_enabled
;
7 this._queue
= ['init'];
8 this._recv_buffer
= [];
9 this._recv_buffer_last
= 0;
13 Mpc
.prototype.log = function(lvl
, msg
, obj
) {
14 if (this._debug_enabled
& lvl
)
15 console
.log('mpc: ' + msg
, obj
);
18 Mpc
.prototype.err = function(msg
, obj
) {
19 console
.error('mpc: ' + msg
, obj
);
22 Mpc
.prototype.set_debug = function(val
) {
23 this._debug_enabled
= val
;
26 Mpc
.prototype.send = function(msg
) {
28 this._queue
.push(msg
);
29 this._socket
.send(msg
, function(x
) {
30 _this
.log(0x1, 'send: ' + msg
+ ':', x
);
34 Mpc
.prototype.recv_msg = function(lines
) {
35 curr
= this._queue
.shift();
36 this.log(0x2, 'recv: [' + curr
+ ']:', lines
.join('\n'));
37 if (lines
[0].substr(0, 4) == 'ACK ')
38 this.err(curr
, lines
.join('\n'));
39 curr
= curr
.split(' ');
42 // Needs to return a list of dicts (see above for dicts).
43 //case 'playlistinfo':
49 lines
.forEach(function(line
) {
50 i
= line
.indexOf(':');
52 return; // Ignores the OK line
53 key
= line
.substr(0, i
);
55 val
= line
.substr(i
+ 2);
59 // When mpd is stopped, it gives us back crap values for some things.
60 if ('state' in state
&& state
.state
== 'stop') {
61 if ('volume' in state
&& state
.volume
== '-1')
62 keys
.splice(keys
.indexOf('volume'), 1);
64 // Now merge the current state with the previous one so that we don't
65 // lose information like volume or song position.
66 curr_state
= this.state
;
67 keys
.forEach(function(key
) {
68 curr_state
[key
] = state
[key
];
71 this._cb_update_state(curr_state
);
74 this._cb_update_state(lines
, curr
);
79 Mpc
.prototype.recv = function(msg
) {
80 /* We can get back a bunch of responses in a row, so parse them out */
81 var lines
= this._recv_buffer
= this._recv_buffer
.concat(msg
.split('\n'));
83 while (i
< lines
.length
) {
84 if (lines
[i
] == 'OK' || lines
[i
].substr(0, 3) == 'OK ' ||
85 lines
[i
].substr(0, 4) == 'ACK ') {
86 this.recv_msg(lines
.splice(0, i
+ 1));
92 if (lines
.length
&& this._recv_buffer_last
!= lines
.length
) {
93 // Keep sucking in data so long as more exists.
94 this._recv_buffer_last
= lines
.length
;
97 this._recv_buffer_last
= lines
.length
;
101 * Command generator helpers.
104 Mpc
.__make_send_void = function(cmd
) {
105 return function() { this.send(cmd
); }
108 Mpc
.__make_send_arg1 = function(cmd
) {
109 return function(a1
) {
110 if (a1
=== undefined)
111 this.err(cmd
+ ': function requires one argument');
113 this.send(cmd
+ ' ' + a1
);
117 Mpc
.__make_send_arg2 = function(cmd
) {
118 return function(a1
, a2
) {
119 if (a1
=== undefined || a2
=== undefined)
120 this.err(cmd
+ ': function requires two arguments');
122 this.send(cmd
+ ' ' + a1
+ ' ' + a2
);
126 Mpc
.__make_send_arg3 = function(cmd
) {
127 return function(a1
, a2
, a3
) {
128 if (a1
=== undefined || a2
=== undefined || a3
== undefined)
129 this.err(cmd
+ ': function requires three arguments');
131 this.send(cmd
+ ' ' + a1
+ ' ' + a2
+ ' ' + a3
);
135 Mpc
.__make_send_opt = function(cmd
) {
136 return function(arg
) {
137 if (arg
=== undefined)
139 this.send(cmd
+ ' ' + arg
);
143 Mpc
.__make_send_range = function(cmd
, min
, max
, def
) {
144 return function(arg
) {
145 if (arg
=== undefined)
147 if (arg
>= min
&& arg
<= max
)
148 this.send(cmd
+ ' ' + arg
);
150 this.err(cmd
+ ': arg must be [' + min
+ ',' + max
+ '] but got "' + arg
+ '"');
155 * Querying MPD's status
156 * http://www.musicpd.org/doc/protocol/ch03.html#idp118752
160 Mpc
.prototype.clearerror
= Mpc
.__make_send_void('clearerror');
162 Mpc
.prototype.currentsong
= Mpc
.__make_send_void('currentsong');
163 // idle [SUBSYSTEMS...]
166 Mpc
.prototype.status
= Mpc
.__make_send_void('status');
168 Mpc
.prototype.stats
= Mpc
.__make_send_void('stats');
172 * http://www.musicpd.org/doc/protocol/ch03s02.html
176 Mpc
.prototype.consume
= Mpc
.__make_send_range('consume', 0, 1, 1);
177 // crossfade {SECONDS}
178 Mpc
.prototype.crossfade
= Mpc
.__make_send_arg1('crossfade');
179 // mixrampdb {deciBels}
180 Mpc
.prototype.mixrampdb
= Mpc
.__make_send_arg1('mixrampdb');
181 // mixrampdelay {SECONDS|nan}
182 // Note: Probably should handle javascript NaN here.
183 Mpc
.prototype.mixrampdelay
= Mpc
.__make_send_arg1('mixrampdelay');
185 Mpc
.prototype.random
= Mpc
.__make_send_range('random', 0, 1, 1);
187 Mpc
.prototype.repeat
= Mpc
.__make_send_range('repeat', 0, 1, 1);
189 Mpc
.prototype.setvol
= Mpc
.__make_send_range('setvol', 0, 100);
191 Mpc
.prototype.single
= Mpc
.__make_send_range('single', 0, 1, 1);
192 // replay_gain_mode {MODE}
193 Mpc
.prototype.replay_gain_mode
= Mpc
.__make_send_arg1('replay_gain_mode');
194 // replay_gain_status
197 * Controlling playback
198 * http://www.musicpd.org/doc/protocol/ch03s03.html
202 Mpc
.prototype.next
= Mpc
.__make_send_void('next');
204 Mpc
.prototype.pause
= Mpc
.__make_send_range('pause', 0, 1, 1);
206 Mpc
.prototype.play
= Mpc
.__make_send_opt('play');
208 Mpc
.prototype.playid
= Mpc
.__make_send_opt('playid');
210 Mpc
.prototype.previous
= Mpc
.__make_send_void('previous');
211 // seek {SONGPOS} {TIME}
212 Mpc
.prototype.seek
= Mpc
.__make_send_arg2('seek');
213 // seekid {SONGID} {TIME}
214 Mpc
.prototype.seekid
= Mpc
.__make_send_arg2('seekid');
216 Mpc
.prototype.seekcur
= Mpc
.__make_send_arg1('seek');
218 Mpc
.prototype.stop
= Mpc
.__make_send_void('stop');
221 * The current playlist
222 * http://www.musicpd.org/doc/protocol/ch03s04.html
226 Mpc
.prototype.add
= Mpc
.__make_send_arg1('add');
227 // addid {URI} [POSITION]
228 // TODO: handle position
229 Mpc
.prototype.addid
= Mpc
.__make_send_arg1('addid');
231 Mpc
.prototype.clear
= Mpc
.__make_send_void('clear');
232 // delete [{POS} | {START:END}]
233 Mpc
.prototype.delete = Mpc
.__make_send_arg1('delete');
235 Mpc
.prototype.deleteid
= Mpc
.__make_send_arg1('deleteid');
236 // move [{FROM} | {START:END}] {TO}
237 Mpc
.prototype.move = Mpc
.__make_send_arg2('move');
238 // moveid {FROM} {TO}
239 Mpc
.prototype.moveid
= Mpc
.__make_send_arg2('moveid');
241 Mpc
.prototype.playlist
= Mpc
.__make_send_void('playlist');
242 // playlistfind {TAG} {NEEDLE}
243 Mpc
.prototype.playlistfind
= Mpc
.__make_send_arg2('playlistfind');
244 // playlistid {SONGID}
245 Mpc
.prototype.playlistid
= Mpc
.__make_send_arg1('playlistid');
246 // playlistinfo [[SONGPOS] | [START:END]]
247 Mpc
.prototype.playlistinfo
= Mpc
.__make_send_opt('playlistinfo');
248 // playlistsearch {TAG} {NEEDLE}
249 Mpc
.prototype.playlistsearch
= Mpc
.__make_send_arg2('playlistsearch');
250 // plchanges {VERSION}
251 Mpc
.prototype.plchanges
= Mpc
.__make_send_arg1('plchanges');
252 // plchangesposid {VERSION}
253 Mpc
.prototype.plchangesposid
= Mpc
.__make_send_arg1('plchangesposid');
254 // prio {PRIORITY} {START:END...}
255 Mpc
.prototype.prio
= Mpc
.__make_send_arg2('prio');
256 // prioid {PRIORITY} {ID...}
257 Mpc
.prototype.prioid
= Mpc
.__make_send_arg2('prioid');
258 // shuffle [START:END]
259 Mpc
.prototype.shuffle
= Mpc
.__make_send_opt('shuffle');
260 // swap {SONG1} {SONG2}
261 Mpc
.prototype.swap
= Mpc
.__make_send_arg2('swap');
262 // swapid {SONG1} {SONG2}
263 Mpc
.prototype.swapid
= Mpc
.__make_send_arg2('swapid');
267 * http://www.musicpd.org/doc/protocol/ch03s05.html
270 // listplaylist {NAME}
271 Mpc
.prototype.listplaylist
= Mpc
.__make_send_arg1('listplaylist');
272 // listplaylistinfo {NAME}
273 Mpc
.prototype.listplaylistinfo
= Mpc
.__make_send_arg1('listplaylistinfo');
275 Mpc
.prototype.listplaylists
= Mpc
.__make_send_void('listplaylists');
276 // load {NAME} [START:END]
277 // TODO: handle optional start:end
278 Mpc
.prototype.load
= Mpc
.__make_send_arg1('load');
279 // playlistadd {NAME} {URI}
280 Mpc
.prototype.playlistadd
= Mpc
.__make_send_arg2('playlistadd');
281 // playlistclear {NAME}
282 Mpc
.prototype.playlistclear
= Mpc
.__make_send_arg1('playlistclear');
283 // playlistdelete {NAME} {SONGPOS}
284 Mpc
.prototype.playlistdelete
= Mpc
.__make_send_arg2('playlistdelete');
285 // playlistmove {NAME} {SONGID} {SONGPOS}
286 Mpc
.prototype.playlistmove
= Mpc
.__make_send_arg3('playlistmove');
287 // rename {NAME} {NEW_NAME}
288 Mpc
.prototype.rename
= Mpc
.__make_send_arg2('rename');
290 Mpc
.prototype.rm
= Mpc
.__make_send_arg1('rm');
292 Mpc
.prototype.save
= Mpc
.__make_send_arg1('save');
296 * http://www.musicpd.org/doc/protocol/ch03s06.html
300 * Connection settings
301 * http://www.musicpd.org/doc/protocol/ch03s08.html
305 Mpc
.prototype.close
= Mpc
.__make_send_void('close');
307 Mpc
.prototype.kill
= Mpc
.__make_send_void('kill');
308 // password {PASSWORD}
309 Mpc
.prototype.password
= Mpc
.__make_send_arg1('password');
311 Mpc
.prototype.ping
= Mpc
.__make_send_void('ping');
314 * Audio output devices
315 * http://www.musicpd.org/doc/protocol/ch03s09.html
318 // disableoutput {ID}
319 Mpc
.prototype.disableoutput
= Mpc
.__make_send_arg1('disableoutput');
321 Mpc
.prototype.enableoutput
= Mpc
.__make_send_arg1('enableoutput');
323 Mpc
.prototype.outputs
= Mpc
.__make_send_void('outputs');
327 * http://www.musicpd.org/doc/protocol/ch03s10.html
331 Mpc
.prototype.config
= Mpc
.__make_send_void('config');
333 Mpc
.prototype.commands
= Mpc
.__make_send_void('commands');
335 Mpc
.prototype.notcommands
= Mpc
.__make_send_void('notcommands');
337 Mpc
.prototype.tagtypes
= Mpc
.__make_send_void('tagtypes');
339 Mpc
.prototype.urlhandlers
= Mpc
.__make_send_void('urlhandlers');
341 Mpc
.prototype.decoders
= Mpc
.__make_send_void('decoders');
345 * http://www.musicpd.org/doc/protocol/ch03s11.html
349 Mpc
.prototype.subscribe
= Mpc
.__make_send_arg1('subscribe');
350 // unsubscribe {NAME}
351 Mpc
.prototype.unsubscribe
= Mpc
.__make_send_arg1('unsubscribe');
353 Mpc
.prototype.channels
= Mpc
.__make_send_void('channels');
355 Mpc
.prototype.readmessages
= Mpc
.__make_send_void('readmessages');
356 // sendmessage {CHANNEL} {TEXT}
357 Mpc
.prototype.sendmessage
= Mpc
.__make_send_arg2('sendmessage');