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 TcpClientSender.prototype.reconnect = function() {
  18         this.tcpclient.disconnect();
  19         this.tcpclient.connect();
  20 }
  21
  22 function tramp_mpc_recv(data) {
  23         mpc.recv(data);
  24 }
  25
  26 function sync_storage(sync) {
  27         return sync ? chrome.storage.sync : chrome.storage.local;
  28 }
  29
  30 window.onload = function() {
  31         var local_keys = [
  32                 'sync',
  33         ];
  34         var sync_keys = [
  35                 'host', 'port', 'refresh',
  36         ];
  37         var options = {
  38                 'host': '192.168.0.2',
  39                 'port': 6600,
  40                 'sync': true,
  41                 'refresh': 5,
  42         };
  43
  44         chrome.storage.local.get(local_keys, function(settings) {
  45                 local_keys.forEach(function(key) {
  46                         if (key in settings)
  47                                 options[key] = settings[key]
  48                 });
  49
  50                 var storage = sync_storage(options['sync']);
  51                 storage.get(sync_keys, function(settings) {
  52                         sync_keys.forEach(function(key) {
  53                                 if (key in settings)
  54                                         options[key] = settings[key];
  55                         });
  56
  57                         init_ui(local_keys, sync_keys, options);
  58                         mpc_connect();
  59                 });
  60         });
  61 };
  62
  63 window.onkeypress = function(e) {
  64         switch (e.keyCode) {
  65         case 49: // 1
  66                 show_page('controls');
  67                 break;
  68         case 50: // 1
  69                 show_page('metadata');
  70                 break;
  71         case 51: // 1
  72                 show_page('playlist');
  73                 break;
  74         case 52: // 1
  75                 show_page('options');
  76                 break;
  77         }
  78 };
  79
  80 function mpc_refresh() {
  81         mpc.status();
  82 }
  83
  84 function mpc_connect(host, port) {
  85         if (typeof(host) != 'string') {
  86                 host = window['opts_host'].value;
  87                 port = parseInt(window['opts_port'].value);
  88         }
  89
  90         if (mpc != undefined) {
  91                 console.log('disconnecting');
  92                 update_ui('disconnect');
  93                 delete mpc;
  94                 tcpclient.disconnect();
  95                 delete tcpclient;
  96         }
  97
  98         update_ui('init');
  99         tcpclient = new TcpClient(host, port);
 100         tcpclient.connect(function() {
 101                 var mpc_sender = new TcpClientSender(tcpclient);
 102                 tcpclient.addResponseListener(tramp_mpc_recv);
 103                 mpc = new Mpc(mpc_sender, update_ui);
 104                 console.log('connected to ' + host + ':' + port);
 105                 console.log('protip: use the "mpc" object to poke mpd directly.\n' +
 106                             'you can also do mpc.set_debug(3) to see traffic');
 107                 mpc_refresh();
 108                 update_refresh_timer();
 109         });
 110 }
 111
 112 function tramp_mpc_consume() {
 113         var val = zo(!getToggleButton(this));
 114         mpc.consume(val);
 115         setToggleButton(this, val);
 116 }
 117 function tramp_mpc_deleteid() { mpc.deleteid(this.title); }
 118 function tramp_mpc_next() { mpc.next(); }
 119 function tramp_mpc_pause() { mpc.pause(); }
 120 function tramp_mpc_play() { mpc.play(); }
 121 function tramp_mpc_previous() { mpc.previous(); }
 122 function tramp_mpc_random() {
 123         var val = zo(!getToggleButton(this));
 124         mpc.random(val);
 125         setToggleButton(this, val);
 126 }
 127 function tramp_mpc_repeat() {
 128         var val = zo(!getToggleButton(this));
 129         mpc.repeat(val);
 130         setToggleButton(this, val);
 131 }
 132 function tramp_mpc_seekcur() { mpc.seekcur(this.value); }
 133 function tramp_mpc_setvol() { mpc.setvol(this.value); }
 134 function tramp_mpc_single() {
 135         var val = zo(!getToggleButton(this));
 136         mpc.single(val);
 137         setToggleButton(this, val);
 138 }
 139 function tramp_mpc_stop() { mpc.stop(); }
 140
 141 function zo(val) {
 142         return val ? 1 : 0;
 143 }
 144 function szo(val) {
 145         return val == '0' ? 0 : 1;
 146 }
 147 function getToggleButton(btn) {
 148         return btn.style.borderStyle == 'inset';
 149 }
 150 function setToggleButton(btn, val) {
 151         if (val === undefined)
 152                 val = !getToggleButton(btn);
 153         btn.style.borderStyle = val ? 'inset' : '';
 154 }
 155
 156 function show_page(page) {
 157         if (typeof(page) != 'string')
 158                 page = this.id.split('.')[1];
 159
 160         switch (page) {
 161         case 'playlist':
 162                 mpc.playlistinfo();
 163                 // Fallthrough.
 164         case 'metadata':
 165                 mpc.currentsong();
 166                 break;
 167         }
 168
 169         var eles = document.getElementsByClassName('main');
 170         for (var i = 0; i < eles.length; ++i) {
 171                 var ele = eles[i];
 172                 var dis = 'none';
 173                 var cls = '';
 174                 if (ele.id == 'main.' + page) {
 175                         dis = '';
 176                         cls = 'selected';
 177                 }
 178                 ele.style.display = dis;
 179                 document.getElementById('tab.' + ele.id.split('.')[1]).className = cls;
 180         }
 181 }
 182
 183 function do_refresh() {
 184         mpc_refresh();
 185         refresh_id = window.setTimeout(do_refresh, window['opts_refresh'].value * 1000);
 186 }
 187
 188 function update_refresh_timer() {
 189         if (!isNaN(refresh_id))
 190                 window.clearTimeout(refresh_id);
 191         var rate = window['opts_refresh'].value * 1000;
 192         if (rate > 0)
 193                 refresh_id = window.setTimeout(do_refresh, rate);
 194 }
 195
 196 function update_local_settings() {
 197         var setting = {};
 198         setting[this.id] = this.checked;
 199         chrome.storage.local.set(setting);
 200 }
 201
 202 function update_sync_settings() {
 203         var setting = {};
 204         setting[this.id] = this.value;
 205         var storage = sync_storage(window['opts_sync'].checked);
 206         storage.set(setting);
 207
 208         switch (this.id) {
 209         case 'refresh':
 210                 update_refresh_timer();
 211                 break;
 212         }
 213 }
 214
 215 function init_ui(local_keys, sync_keys, options) {
 216         var ele, i;
 217
 218         /* Setup footer */
 219         i = 1;
 220         [
 221                 'controls', 'metadata', 'playlist', 'options',
 222         ].forEach(function(id) {
 223                 var ele = document.getElementById('tab.' + id);
 224                 ele.onclick = show_page;
 225                 ele.title = id + ' [' + i + ']';
 226                 ++i;
 227         });
 228
 229         /* Setup control tab */
 230         ui_mpc_status = document.getElementById('status');
 231         [
 232                 'consume', 'next', 'pause', 'play', 'previous', 'random', 'repeat',
 233                 'seekcur', 'setvol', 'single', 'stop',
 234         ].forEach(function(id) {
 235                 var ele = window['ui_mpc_' + id] = document.getElementById(id);
 236                 ele.onchange = ele.onclick = window['tramp_mpc_' + id];
 237                 ele.title = id;
 238                 if (ele.accessKey)
 239                         ele.title += ' [' + ele.accessKey + ']'
 240         });
 241         window['ui_mpc_currtime'] = document.getElementById('currtime');
 242
 243         /* Setup metadata tab */
 244         [
 245                 'album', 'artist', 'date', 'file', 'title',
 246         ].forEach(function(id) {
 247                 window['ui_mpc_metadata_' + id] = document.getElementById('metadata.' + id);
 248         });
 249
 250         /* Setup playlist tab */
 251         window['ui_mpc_playlist'] = document.getElementById('playlist');
 252
 253         /* Setup options tab */
 254         document.getElementById('connect').onclick = mpc_connect;
 255         local_keys.forEach(function(id) {
 256                 var ele = window['opts_' + id] = document.getElementById(id);
 257                 ele.checked = options[id];
 258                 ele.onchange = update_local_settings;
 259         });
 260         sync_keys.forEach(function(id) {
 261                 var ele = window['opts_' + id] = document.getElementById(id);
 262                 ele.value = options[id];
 263                 ele.oninput = update_sync_settings;
 264         });
 265 }
 266
 267 function pretty_time(time) {
 268         var sec, min, hrs, ret = '';
 269         time = parseInt(time);
 270         sec = time % 60;
 271         min = parseInt((time / 60) % 60);
 272         hrs = parseInt((time / 3600) % 3600);
 273         if (hrs)
 274                 ret = hrs + ':' + ("00" + min).substr(-2) + ':';
 275         else
 276                 ret = min + ':';
 277         return ret + ("00" + sec).substr(-2);
 278 }
 279
 280 function playlist_del() {
 281         mpc.deleteid(this.song_id);
 282         this.parentNode.remove();
 283 }
 284
 285 function playlist_play() {
 286         mpc.playid(this.song_id);
 287         this.parentNode.style.fontWeight = 'bold';
 288 }
 289
 290 function update_ui(state, cmd) {
 291         if (typeof(state) == 'string') {
 292                 ui_mpc_status.innerText = ({
 293                         'disconnect': 'Disconnecting...',
 294                         'init': 'Connecting...',
 295                 })[state];
 296                 return;
 297         }
 298
 299         if (Array.isArray(state)) {
 300                 /*
 301                 switch (cmd[0]) {
 302                 case 'setvol':
 303                 case 'seekcur':
 304                         break;
 305                 default:
 306                         mpc_refresh();
 307                 }
 308                 */
 309                 return;
 310         }
 311
 312         /* Update the metadata tab only when things have changed. */
 313         if ('Currentsong' in state && ui_mpc_metadata_file.lastUpdate != state.Currentsong.lastUpdate) {
 314                 var currentsong = state.Currentsong;
 315                 ui_mpc_metadata_album.innerText = currentsong.Album;
 316                 ui_mpc_metadata_artist.innerText = currentsong.Artist;
 317                 ui_mpc_metadata_title.innerText = currentsong.Title;
 318                 ui_mpc_metadata_date.innerText = currentsong.Date;
 319                 ui_mpc_metadata_file.innerText = currentsong.file;
 320         }
 321
 322         /* Update the playlist tab only when things have changed. */
 323         if ('Playlist' in state && ui_mpc_playlist.lastUpdate != state.Playlist.lastUpdate) {
 324                 var playlist = state.Playlist;
 325
 326                 ui_mpc_playlist.innerHTML = '';
 327                 playlist.forEach(function(song) {
 328                         var cell, row = ui_mpc_playlist.insertRow(-1);
 329                         if (song.Pos == currentsong.Pos)
 330                                 row.style.fontWeight = 'bold';
 331
 332                         cell = row.insertCell(-1);
 333                         cell.id = 'playlist_del';
 334                         cell.innerHTML = '&#164;';
 335                         cell.song_id = song.Id;
 336                         cell.title = 'delete';
 337                         cell.onclick = playlist_del;
 338
 339                         cell = row.insertCell(-1);
 340                         cell.innerText = song.Pos;
 341                         cell.style.textAlign = 'right';
 342                         cell.song_id = song.Id;
 343                         cell.title = 'play';
 344                         cell.onclick = playlist_play;
 345
 346                         if ('Artist' in song) {
 347                                 row.insertCell(-1).innerText = song.Artist;
 348                                 row.insertCell(-1).innerText = song.Album;
 349                                 row.insertCell(-1).innerText = song.Title;
 350                         } else {
 351                                 cell = row.insertCell(-1);
 352                                 cell.innerText = song.file;
 353                                 cell.colSpan = 3;
 354                         }
 355                         row.insertCell(-1).innerText = pretty_time(song.Time);
 356                 });
 357
 358                 ui_mpc_playlist.lastUpdate = playlist.lastUpdate;
 359         }
 360
 361         /* Update the status tab. */
 362         var time, percent;
 363         if ('time' in state) {
 364                 // When stopped, there is no time field at all.
 365                 time = state.time.split(':');
 366                 percent = Math.floor((0.0 + time[0]) * 100 / (0.0 + time[1]));
 367         } else {
 368                 time = [0, 0];
 369                 percent = 0;
 370         }
 371         ui_mpc_seekcur.max = time[1];
 372         ui_mpc_seekcur.value = time[0];
 373         ui_mpc_seekcur.title = 'seekcur (' + percent + '%)';
 374         ui_mpc_currtime.innerText = [pretty_time(time[0]), pretty_time(time[1]), percent + '%'].join(' / ');
 375
 376         ui_mpc_setvol.title = 'setvol';
 377         if ('volume' in state) {
 378                 ui_mpc_setvol.value = state.volume;
 379                 ui_mpc_setvol.title += ' (' + state.volume + '%)';
 380         }
 381
 382         [
 383                 'consume', 'random', 'repeat', 'single',
 384         ].forEach(function(id) {
 385                 setToggleButton(window['ui_mpc_' + id], szo(state[id]));
 386         });
 387
 388         ui_mpc_status.innerText = ({
 389                 'play': 'Playing',
 390                 'pause': 'Paused',
 391                 'stop': 'Stopped',
 392         })[state.state];
 393 }