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 window.onkeypress = function(e) {
  60         switch (e.keyCode) {
  61         case 49: // 1
  62                 show_page('controls');
  63                 break;
  64         case 50: // 1
  65                 show_page('metadata');
  66                 break;
  67         case 51: // 1
  68                 show_page('playlist');
  69                 break;
  70         case 52: // 1
  71                 show_page('options');
  72                 break;
  73         }
  74 };
  75
  76 function mpc_refresh() {
  77         mpc.status();
  78 }
  79
  80 function mpc_connect(host, port) {
  81         if (typeof(host) != 'string') {
  82                 host = window['opts_host'].value;
  83                 port = parseInt(window['opts_port'].value);
  84         }
  85
  86         if (mpc != undefined) {
  87                 console.log('disconnecting');
  88                 update_ui('disconnect');
  89                 delete mpc;
  90                 tcpclient.disconnect();
  91                 delete tcpclient;
  92         }
  93
  94         update_ui('init');
  95         tcpclient = new TcpClient(host, port);
  96         tcpclient.connect(function() {
  97                 var mpc_sender = new TcpClientSender(tcpclient);
  98                 tcpclient.addResponseListener(tramp_mpc_recv);
  99                 mpc = new Mpc(mpc_sender, update_ui);
 100                 console.log('connected to ' + host + ':' + port);
 101                 console.log('protip: use the "mpc" object to poke mpd directly.\n' +
 102                             'you can also do mpc.set_debug(3) to see traffic');
 103                 mpc_refresh();
 104                 update_refresh_timer();
 105         });
 106 }
 107
 108 function tramp_mpc_consume() {
 109         var val = zo(!getToggleButton(this));
 110         mpc.consume(val);
 111         setToggleButton(this, val);
 112 }
 113 function tramp_mpc_next() { mpc.next(); }
 114 function tramp_mpc_pause() { mpc.pause(); }
 115 function tramp_mpc_play() { mpc.play(); }
 116 function tramp_mpc_previous() { mpc.previous(); }
 117 function tramp_mpc_random() {
 118         var val = zo(!getToggleButton(this));
 119         mpc.random(val);
 120         setToggleButton(this, val);
 121 }
 122 function tramp_mpc_repeat() {
 123         var val = zo(!getToggleButton(this));
 124         mpc.repeat(val);
 125         setToggleButton(this, val);
 126 }
 127 function tramp_mpc_seekcur() { mpc.seekcur(this.value); }
 128 function tramp_mpc_setvol() { mpc.setvol(this.value); }
 129 function tramp_mpc_single() {
 130         var val = zo(!getToggleButton(this));
 131         mpc.single(val);
 132         setToggleButton(this, val);
 133 }
 134 function tramp_mpc_stop() { mpc.stop(); }
 135
 136 function zo(val) {
 137         return val ? 1 : 0;
 138 }
 139 function szo(val) {
 140         return val == '0' ? 0 : 1;
 141 }
 142 function getToggleButton(btn) {
 143         return btn.style.borderStyle == 'inset';
 144 }
 145 function setToggleButton(btn, val) {
 146         if (val === undefined)
 147                 val = !getToggleButton(btn);
 148         btn.style.borderStyle = val ? 'inset' : '';
 149 }
 150
 151 function show_page(page) {
 152         if (typeof(page) != 'string')
 153                 page = this.id.split('.')[1];
 154
 155         switch (page) {
 156         case 'playlist':
 157                 mpc.playlistinfo();
 158                 // Fallthrough.
 159         case 'metadata':
 160                 mpc.currentsong();
 161                 break;
 162         }
 163
 164         var eles = document.getElementsByClassName('main');
 165         for (var i = 0; i < eles.length; ++i) {
 166                 var ele = eles[i];
 167                 var dis = 'none';
 168                 var cls = '';
 169                 if (ele.id == 'main.' + page) {
 170                         dis = '';
 171                         cls = 'selected';
 172                 }
 173                 ele.style.display = dis;
 174                 document.getElementById('tab.' + ele.id.split('.')[1]).className = cls;
 175         }
 176 }
 177
 178 function do_refresh() {
 179         mpc_refresh();
 180         refresh_id = window.setTimeout(do_refresh, window['opts_refresh'].value * 1000);
 181 }
 182
 183 function update_refresh_timer() {
 184         if (!isNaN(refresh_id))
 185                 window.clearTimeout(refresh_id);
 186         var rate = window['opts_refresh'].value * 1000;
 187         if (rate > 0)
 188                 refresh_id = window.setTimeout(do_refresh, rate);
 189 }
 190
 191 function update_local_settings() {
 192         var setting = {};
 193         setting[this.id] = this.checked;
 194         chrome.storage.local.set(setting);
 195 }
 196
 197 function update_sync_settings() {
 198         var setting = {};
 199         setting[this.id] = this.value;
 200         var storage = sync_storage(window['opts_sync'].checked);
 201         storage.set(setting);
 202
 203         switch (this.id) {
 204         case 'refresh':
 205                 update_refresh_timer();
 206                 break;
 207         }
 208 }
 209
 210 function init_ui(local_keys, sync_keys, options) {
 211         var ele, i;
 212
 213         /* Setup footer */
 214         i = 1;
 215         [
 216                 'controls', 'metadata', 'playlist', 'options',
 217         ].forEach(function(id) {
 218                 var ele = document.getElementById('tab.' + id);
 219                 ele.onclick = show_page;
 220                 ele.title = id + ' [' + i + ']';
 221                 ++i;
 222         });
 223
 224         /* Setup control tab */
 225         ui_mpc_status = document.getElementById('status');
 226         [
 227                 'consume', 'next', 'pause', 'play', 'previous', 'random', 'repeat',
 228                 'seekcur', 'setvol', 'single', 'stop',
 229         ].forEach(function(id) {
 230                 var ele = window['ui_mpc_' + id] = document.getElementById(id);
 231                 ele.onchange = ele.onclick = window['tramp_mpc_' + id];
 232                 ele.title = id;
 233                 if (ele.accessKey)
 234                         ele.title += ' [' + ele.accessKey + ']'
 235         });
 236         window['ui_mpc_currtime'] = document.getElementById('currtime');
 237
 238         /* Setup metadata tab */
 239         [
 240                 'album', 'artist', 'date', 'file', 'title',
 241         ].forEach(function(id) {
 242                 window['ui_mpc_metadata_' + id] = document.getElementById('metadata.' + id);
 243         });
 244
 245         /* Setup playlist tab */
 246         window['ui_mpc_playlist'] = document.getElementById('playlist');
 247
 248         /* Setup options tab */
 249         document.getElementById('connect').onclick = mpc_connect;
 250         local_keys.forEach(function(id) {
 251                 var ele = window['opts_' + id] = document.getElementById(id);
 252                 ele.checked = options[id];
 253                 ele.onchange = update_local_settings;
 254         });
 255         sync_keys.forEach(function(id) {
 256                 var ele = window['opts_' + id] = document.getElementById(id);
 257                 ele.value = options[id];
 258                 ele.oninput = update_sync_settings;
 259         });
 260 }
 261
 262 function pretty_time(time) {
 263         var sec, min, hrs, ret = '';
 264         time = parseInt(time);
 265         sec = time % 60;
 266         min = parseInt((time / 60) % 60);
 267         hrs = parseInt((time / 3600) % 3600);
 268         if (hrs)
 269                 ret = hrs + ':' + ("00" + min).substr(-2) + ':';
 270         else
 271                 ret = min + ':';
 272         return ret + ("00" + sec).substr(-2);
 273 }
 274
 275 function update_ui(state, cmd) {
 276         if (typeof(state) == 'string') {
 277                 ui_mpc_status.innerText = ({
 278                         'disconnect': 'Disconnecting...',
 279                         'init': 'Connecting...',
 280                 })[state];
 281                 return;
 282         }
 283
 284         if (Array.isArray(state)) {
 285                 /*
 286                 switch (cmd[0]) {
 287                 case 'setvol':
 288                 case 'seekcur':
 289                         break;
 290                 default:
 291                         mpc_refresh();
 292                 }
 293                 */
 294                 return;
 295         }
 296
 297         /* Update the metadata tab. */
 298         var currentsong = {};
 299         if ('Currentsong' in state)
 300                 currentsong = state.Currentsong;
 301         ui_mpc_metadata_album.innerText = currentsong.Album;
 302         ui_mpc_metadata_artist.innerText = currentsong.Artist;
 303         ui_mpc_metadata_title.innerText = currentsong.Title;
 304         ui_mpc_metadata_date.innerText = currentsong.Date;
 305         ui_mpc_metadata_file.innerText = currentsong.file;
 306
 307         /* Update the playlist tab. */
 308         var playlist = [];
 309         if ('Playlist' in state)
 310                 playlist = state.Playlist;
 311         ui_mpc_playlist.innerHTML = '';
 312         playlist.forEach(function(song) {
 313                 var cell, row = ui_mpc_playlist.insertRow(-1);
 314                 if (song.Pos == currentsong.Pos)
 315                         row.style.fontWeight = 'bold';
 316
 317                 cell = row.insertCell(-1);
 318                 cell.innerText = song.Pos;
 319                 cell.style.textAlign = 'right';
 320
 321                 if ('Artist' in song) {
 322                         row.insertCell(-1).innerText = song.Artist;
 323                         row.insertCell(-1).innerText = song.Album;
 324                         row.insertCell(-1).innerText = song.Title;
 325                 } else {
 326                         cell = row.insertCell(-1);
 327                         cell.innerText = song.file;
 328                         cell.colSpan = 3;
 329                 }
 330                 row.insertCell(-1).innerText = pretty_time(song.Time);
 331         });
 332
 333         /* Update the status tab. */
 334         var time;
 335         if ('time' in state)
 336                 // When stopped, there is no time field at all.
 337                 time = state.time.split(':');
 338         else
 339                 time = [0, 0];
 340         ui_mpc_seekcur.max = time[1];
 341         ui_mpc_seekcur.value = time[0];
 342         percent = Math.floor((0.0 + time[0]) * 100 / (0.0 + time[1]));
 343         ui_mpc_seekcur.title = 'seekcur (' + percent + '%)';
 344         ui_mpc_currtime.innerText = [pretty_time(time[0]), pretty_time(time[1]), percent + '%'].join(' / ');
 345
 346         ui_mpc_setvol.value = state.volume;
 347         ui_mpc_setvol.title = 'setvol (' + state.volume + '%)';
 348
 349         [
 350                 'consume', 'random', 'repeat', 'single',
 351         ].forEach(function(id) {
 352                 setToggleButton(window['ui_mpc_' + id], szo(state[id]));
 353         });
 354
 355         ui_mpc_status.innerText = ({
 356                 'play': 'Playing',
 357                 'pause': 'Paused',
 358                 'stop': 'Stopped',
 359         })[state.state];
 360 }