main.js

   1 // Written by Mike Frysinger <vapier@gmail.com>.  Released into the public domain.  Suck it.
   2
   3 /* Globals to allow easy manipulation via javascript console */
   4 var mpc;
   5 var tcpclient;
   6 var refresh_id = NaN;
   7
   8 function TcpClientSender(tcpclient) {
   9         this.tcpclient = tcpclient;
  10 }
  11 TcpClientSender.prototype.send = function(data, cb) {
  12         this.tcpclient.sendMessage(data, cb);
  13 }
  14 TcpClientSender.prototype.poll = function() {
  15         this.tcpclient.poll();
  16 }
  17
  18 function tramp_mpc_recv(data) {
  19         mpc.recv(data);
  20 }
  21
  22 function sync_storage(sync) {
  23         return sync ? chrome.storage.sync : chrome.storage.local;
  24 }
  25
  26 window.onload = function() {
  27         var local_keys = [
  28                 'sync',
  29         ];
  30         var sync_keys = [
  31                 'host', 'port', 'refresh',
  32         ];
  33         var options = {
  34                 'host': '192.168.0.2',
  35                 'port': 6600,
  36                 'sync': true,
  37                 'refresh': 5,
  38         };
  39
  40         chrome.storage.local.get(local_keys, function(settings) {
  41                 local_keys.forEach(function(key) {
  42                         if (key in settings)
  43                                 options[key] = settings[key]
  44                 });
  45
  46                 var storage = sync_storage(options['sync']);
  47                 storage.get(sync_keys, function(settings) {
  48                         sync_keys.forEach(function(key) {
  49                                 if (key in settings)
  50                                         options[key] = settings[key];
  51                         });
  52
  53                         init_ui(local_keys, sync_keys, options);
  54                         mpc_connect();
  55                 });
  56         });
  57 };
  58
  59 function mpc_refresh() {
  60         mpc.status();
  61 }
  62
  63 function mpc_connect(host, port) {
  64         if (typeof(host) != 'string') {
  65                 host = window['opts_host'].value;
  66                 port = parseInt(window['opts_port'].value);
  67         }
  68
  69         if (mpc != undefined) {
  70                 console.log('disconnecting');
  71                 update_ui('disconnect');
  72                 delete mpc;
  73                 tcpclient.disconnect();
  74                 delete tcpclient;
  75         }
  76
  77         update_ui('init');
  78         tcpclient = new TcpClient(host, port);
  79         tcpclient.connect(function() {
  80                 var mpc_sender = new TcpClientSender(tcpclient);
  81                 tcpclient.addResponseListener(tramp_mpc_recv);
  82                 mpc = new Mpc(mpc_sender, update_ui);
  83                 console.log('connected to ' + host + ':' + port);
  84                 console.log('protip: use the "mpc" object to poke mpd directly.\n' +
  85                             'you can also do mpc.set_debug(3) to see traffic');
  86                 mpc_refresh();
  87                 update_refresh_timer();
  88         });
  89 }
  90
  91 function tramp_mpc_consume() {
  92         var val = zo(!getToggleButton(this));
  93         mpc.consume(val);
  94         setToggleButton(this, val);
  95 }
  96 function tramp_mpc_next() { mpc.next(); }
  97 function tramp_mpc_pause() { mpc.pause(); }
  98 function tramp_mpc_play() { mpc.play(); }
  99 function tramp_mpc_previous() { mpc.previous(); }
 100 function tramp_mpc_random() {
 101         var val = zo(!getToggleButton(this));
 102         mpc.random(val);
 103         setToggleButton(this, val);
 104 }
 105 function tramp_mpc_repeat() {
 106         var val = zo(!getToggleButton(this));
 107         mpc.repeat(val);
 108         setToggleButton(this, val);
 109 }
 110 function tramp_mpc_seekcur() { mpc.seekcur(this.value); }
 111 function tramp_mpc_setvol() { mpc.setvol(this.value); }
 112 function tramp_mpc_single() {
 113         var val = zo(!getToggleButton(this));
 114         mpc.single(val);
 115         setToggleButton(this, val);
 116 }
 117 function tramp_mpc_stop() { mpc.stop(); }
 118
 119 function zo(val) {
 120         return val ? 1 : 0;
 121 }
 122 function szo(val) {
 123         return val == '0' ? 0 : 1;
 124 }
 125 function getToggleButton(btn) {
 126         return btn.style.borderStyle == 'inset';
 127 }
 128 function setToggleButton(btn, val) {
 129         if (val === undefined)
 130                 val = !getToggleButton(btn);
 131         btn.style.borderStyle = val ? 'inset' : '';
 132 }
 133
 134 function show_page(page) {
 135         if (typeof(page) != 'string')
 136                 page = this.id.split('.')[1];
 137
 138         switch (page) {
 139         case 'playlist':
 140                 mpc.playlistinfo();
 141                 // Fallthrough.
 142         case 'metadata':
 143                 mpc.currentsong();
 144                 break;
 145         }
 146
 147         var eles = document.getElementsByClassName('main');
 148         for (var i = 0; i < eles.length; ++i) {
 149                 var ele = eles[i];
 150                 var dis = 'none';
 151                 var cls = '';
 152                 if (ele.id == 'main.' + page) {
 153                         dis = '';
 154                         cls = 'selected';
 155                 }
 156                 ele.style.display = dis;
 157                 document.getElementById('tab.' + ele.id.split('.')[1]).className = cls;
 158         }
 159 }
 160
 161 function do_refresh() {
 162         mpc_refresh();
 163         refresh_id = window.setTimeout(do_refresh, window['opts_refresh'].value * 1000);
 164 }
 165
 166 function update_refresh_timer() {
 167         if (!isNaN(refresh_id))
 168                 window.clearTimeout(refresh_id);
 169         var rate = window['opts_refresh'].value * 1000;
 170         if (rate > 0)
 171                 refresh_id = window.setTimeout(do_refresh, rate);
 172 }
 173
 174 function update_local_settings() {
 175         var setting = {};
 176         setting[this.id] = this.checked;
 177         chrome.storage.local.set(setting);
 178 }
 179
 180 function update_sync_settings() {
 181         var setting = {};
 182         setting[this.id] = this.value;
 183         var storage = sync_storage(window['opts_sync'].checked);
 184         storage.set(setting);
 185
 186         switch (this.id) {
 187         case 'refresh':
 188                 update_refresh_timer();
 189                 break;
 190         }
 191 }
 192
 193 function init_ui(local_keys, sync_keys, options) {
 194         /* Setup footer */
 195         [
 196                 'controls', 'metadata', 'options', 'playlist',
 197         ].forEach(function(id) {
 198                 document.getElementById('tab.' + id).onclick = show_page;
 199         });
 200
 201         /* Setup control tab */
 202         ui_mpc_status = document.getElementById('status');
 203         [
 204                 'consume', 'next', 'pause', 'play', 'previous', 'random', 'repeat',
 205                 'seekcur', 'setvol', 'single', 'stop',
 206         ].forEach(function(id) {
 207                 var ele = window['ui_mpc_' + id] = document.getElementById(id);
 208                 ele.onchange = ele.onclick = window['tramp_mpc_' + id];
 209                 ele.title = id;
 210         });
 211         window['ui_mpc_currtime'] = document.getElementById('currtime');
 212
 213         /* Setup metadata tab */
 214         [
 215                 'album', 'artist', 'date', 'file', 'title',
 216         ].forEach(function(id) {
 217                 window['ui_mpc_metadata_' + id] = document.getElementById('metadata.' + id);
 218         });
 219
 220         /* Setup playlist tab */
 221         window['ui_mpc_playlist'] = document.getElementById('playlist');
 222
 223         /* Setup options tab */
 224         document.getElementById('connect').onclick = mpc_connect;
 225         local_keys.forEach(function(id) {
 226                 var ele = window['opts_' + id] = document.getElementById(id);
 227                 ele.checked = options[id];
 228                 ele.onchange = update_local_settings;
 229         });
 230         sync_keys.forEach(function(id) {
 231                 var ele = window['opts_' + id] = document.getElementById(id);
 232                 ele.value = options[id];
 233                 ele.oninput = update_sync_settings;
 234         });
 235 }
 236
 237 function pretty_time(time) {
 238         var sec, min, hrs, ret = '';
 239         time = parseInt(time);
 240         sec = time % 60;
 241         min = parseInt((time / 60) % 60);
 242         hrs = parseInt((time / 3600) % 3600);
 243         if (hrs)
 244                 ret = hrs + ':' + ("00" + min).substr(-2) + ':';
 245         else
 246                 ret = min + ':';
 247         return ret + ("00" + sec).substr(-2);
 248 }
 249
 250 function update_ui(state, cmd) {
 251         if (typeof(state) == 'string') {
 252                 ui_mpc_status.innerText = ({
 253                         'disconnect': 'Disconnecting...',
 254                         'init': 'Connecting...',
 255                 })[state];
 256                 return;
 257         }
 258
 259         if (Array.isArray(state)) {
 260                 /*
 261                 switch (cmd[0]) {
 262                 case 'setvol':
 263                 case 'seekcur':
 264                         break;
 265                 default:
 266                         mpc_refresh();
 267                 }
 268                 */
 269                 return;
 270         }
 271
 272         /* Update the metadata tab. */
 273         var currentsong = {};
 274         if ('Currentsong' in state)
 275                 currentsong = state.Currentsong;
 276         ui_mpc_metadata_album.innerText = currentsong.Album;
 277         ui_mpc_metadata_artist.innerText = currentsong.Artist;
 278         ui_mpc_metadata_title.innerText = currentsong.Title;
 279         ui_mpc_metadata_date.innerText = currentsong.Date;
 280         ui_mpc_metadata_file.innerText = currentsong.file;
 281
 282         /* Update the playlist tab. */
 283         var playlist = [];
 284         if ('Playlist' in state)
 285                 playlist = state.Playlist;
 286         ui_mpc_playlist.innerHTML = '';
 287         playlist.forEach(function(song) {
 288                 var cell, row = ui_mpc_playlist.insertRow(-1);
 289                 if (song.Pos == currentsong.Pos)
 290                         row.style.fontWeight = 'bold';
 291
 292                 cell = row.insertCell(-1);
 293                 cell.innerText = song.Pos;
 294                 cell.style.textAlign = 'right';
 295
 296                 if ('Artist' in song) {
 297                         row.insertCell(-1).innerText = song.Artist;
 298                         row.insertCell(-1).innerText = song.Album;
 299                         row.insertCell(-1).innerText = song.Title;
 300                 } else {
 301                         cell = row.insertCell(-1);
 302                         cell.innerText = song.file;
 303                         cell.colSpan = 3;
 304                 }
 305                 row.insertCell(-1).innerText = pretty_time(song.Time);
 306         });
 307
 308         /* Update the status tab. */
 309         var time;
 310         if ('time' in state)
 311                 // When stopped, there is no time field at all.
 312                 time = state.time.split(':');
 313         else
 314                 time = [0, 0];
 315         ui_mpc_seekcur.max = time[1];
 316         ui_mpc_seekcur.value = time[0];
 317         percent = Math.floor((0.0 + time[0]) * 100 / (0.0 + time[1]));
 318         ui_mpc_seekcur.title = 'seekcur (' + percent + '%)';
 319         ui_mpc_currtime.innerText = [pretty_time(time[0]), pretty_time(time[1]), percent + '%'].join(' / ');
 320
 321         ui_mpc_setvol.value = state.volume;
 322         ui_mpc_setvol.title = 'setvol (' + state.volume + '%)';
 323
 324         [
 325                 'consume', 'random', 'repeat', 'single',
 326         ].forEach(function(id) {
 327                 setToggleButton(window['ui_mpc_' + id], szo(state[id]));
 328         });
 329
 330         ui_mpc_status.innerText = ({
 331                 'play': 'Playing',
 332                 'pause': 'Paused',
 333                 'stop': 'Stopped',
 334         })[state.state];
 335 }