mpd.js

   1 urlbase="/cgi-bin/mpd.lua?"
   2 minScrollHeight=200
   3
   4 currentState=""
   5
   6 function GetFilename(url)
   7 {
   8    if (url)
   9    return url.split('/').pop().split('#')[0].split('?')[0];
  10 }
  11
  12 function EscapeStr(str) {
  13   res = str.replace(/'/g,"\\'");
  14   return res;
  15 }
  16
  17 function SetSize() {
  18   var w = window,
  19       d = document,
  20       e = d.documentElement,
  21       g = d.getElementsByTagName('body')[0],
  22       body_h = g.clientHeight,
  23       window_h = w.innerHeight|| e.clientHeight|| g.clientHeight,
  24       items = d.getElementById('items'),
  25       current_h = items.clientHeight,
  26       new_h=(window_h-body_h)+current_h;
  27       if (new_h>minScrollHeight) {
  28         items.style.height=new_h+"px";
  29       }
  30 }
  31
  32 function toHHMMSS(seconds) {
  33     var hours = Math.floor(seconds / 3600);
  34     seconds -= hours*3600;
  35     var minutes = Math.floor(seconds / 60);
  36     seconds -= minutes*60;
  37
  38     if (hours   < 10) {hours   = "0"+hours;}
  39     if (minutes < 10) {minutes = "0"+minutes;}
  40     if (seconds < 10) {seconds = "0"+seconds;}
  41     if (hours == 0) {
  42      return minutes+':'+seconds;
  43     } else {
  44      return hours+':'+minutes+':'+seconds;
  45     }
  46 }
  47
  48 function RefreshTime() {
  49   if (currentSeconds) {
  50     currentTime = toHHMMSS(currentSeconds)
  51     trackTime = toHHMMSS(trackSeconds)
  52     nowPlayingTime = currentTime+"/"+trackTime
  53   } else {
  54     nowPlayingTime = "-:--/-:--"
  55   }
  56   document.getElementById('nowplaying_tracklen').innerHTML=nowPlayingTime;
  57 }
  58
  59 function PeriodicRefreshTime() {
  60   if (currentState == "play") {
  61     nowTime = Date.now()
  62     delta = (nowTime - updateTime)/1000
  63     currentSeconds = updateSeconds + Math.round(delta)
  64     if (currentSeconds > trackSeconds) {
  65       currentSeconds = trackSeconds
  66     }
  67     RefreshTime()
  68   }
  69 }
  70
  71 function RefreshPageStatus() {
  72
  73   var req = new XMLHttpRequest();
  74
  75   req.onreadystatechange = function () {
  76     if (this.readyState != 4 || this.status != 200) return;
  77     var returnedData = JSON.parse(this.responseText);
  78     trackName = GetFilename(returnedData['current_playing']);
  79     trackNo = returnedData['song'];
  80     currentState = returnedData['state'];
  81     document.title='MPD Player: '+trackName;
  82     nowPlayingTrack = (1+Number(trackNo)) + '/' + returnedData['playlistlength'];
  83     nowPlayingName = trackName;
  84     playingTime = returnedData['time']
  85     if (playingTime) {
  86       var splits = playingTime.split(":")
  87       updateTime = Date.now()
  88       currentSeconds = Number(splits[0])
  89       updateSeconds = currentSeconds
  90       trackSeconds = Number(splits[1])
  91     } else {
  92       currentSeconds = null
  93     }
  94     if (currentState=='stop') {
  95       nowPlayingName = '<font color="gray">' + nowPlayingName+ '</font>'
  96     }
  97     document.getElementById('nowplaying_trackno').innerHTML=nowPlayingTrack;
  98     document.getElementById('nowplaying_trackname').innerHTML=nowPlayingName;
  99     RefreshTime()
 100     if (currentState=="play") {
 101       document.getElementById('playpausebutton').innerHTML="<span onclick=\"Command('pause')\"><img class=\"button\" title=\"Pause\" src=\"images/pause.svg\"></span>";
 102     } else {
 103       document.getElementById('playpausebutton').innerHTML="<span onclick=\"Command('play')\"><img class=\"button\" title=\"Play\" src=\"images/play-button.svg\"></span>";
 104     }
 105     if (currentState=="stop") {
 106       document.getElementById('stopbutton').innerHTML="<span><img class=\"button\" src=\"images/stopoff.svg\"></span>";
 107     } else {
 108       document.getElementById('stopbutton').innerHTML="<span onclick=\"Command('stop')\"><img class=\"button\" title=\"Stop\" src=\"images/stop.svg\"></span>";
 109     }
 110     if (returnedData["repeat"]=="1") {
 111       document.getElementById('repeatstate').innerHTML="<img class=\"button\" title=\"Replay is on\" src=\"images/replay.svg\"></a>";
 112     } else {
 113       document.getElementById('repeatstate').innerHTML="<img class=\"button\" title=\"Replay is off\" src=\"images/replayoff.svg\"></a>";
 114     }
 115     document.getElementById('volume_total').innerHTML="<div id=\"volume_actual\" style=\"width:"+returnedData["volume"]+"%\">";
 116
 117     var items = document.getElementById('items');
 118     var table = items.getElementsByClassName('track');
 119     var current_track="track_"+trackNo;
 120     for (var i = 0; i < table.length; i++) {
 121       if (table[i].id==current_track) {
 122         table[i].classList.add("itemActive");
 123       } else {
 124         table[i].classList.remove("itemActive")
 125       }
 126     }
 127
 128   };
 129
 130   req.open("GET", urlbase+"status", true);
 131   req.send();
 132
 133 }
 134
 135 function RefreshPlaylist() {
 136
 137 var req = new XMLHttpRequest();
 138
 139 req.onreadystatechange = function () {
 140   if (this.readyState != 4 || this.status != 200) return;
 141   var returnedData = JSON.parse(this.responseText);
 142
 143   var playlistMenuText = "<table>\
 144   <tr>\
 145   <td><span onclick=\"EditPlayList()\"><img class=\"medium-button\" title=\"Files\" src=\"images/folder.svg\"></span><td>\
 146   <td><span onclick=\"LoadPlayList()\"><img class=\"medium-button\" title=\"Lists\" src=\"images/list.svg\"></span><td>\
 147   <td><span onclick=\"SavePlayList()\"><img class=\"medium-button\" title=\"Save current list\" src=\"images/download.svg\"></span><td>\
 148   <td><span onclick=\"return confirm('Clear current playlist, are you sure?') ? PlaylistCommand('clear') : false;\" ><img class=\"medium-button\" title=\"Clear current list\"  src=\"images/cancel.svg\"></span><td>\
 149   </tr>\
 150   </table>";
 151
 152   var itemsText="<table>\
 153   <tr id=\"items_heading\">\
 154   <td></td class=\"track_number\"><td class=\"file\">Title</td><td class=\"medium-button\" colspan=\"3\">Controls</td>\
 155   </tr>";
 156
 157   var even = 0;
 158   for (var key in returnedData) {
 159        var rec=returnedData[key];
 160        var name=GetFilename(rec["name"]);
 161        var id=rec["id"];
 162
 163        if (even) {
 164          evText="itemEven";
 165        } else {
 166          evText="itemOdd";
 167        };
 168
 169        even = ! even;
 170
 171        itemsText = itemsText + "<tr id=\"track_"+id+"\" class=\"track "+evText+"\">\
 172   <td class=\"track_number\">\
 173   <a name=\""+id+"\">"+(Number(id)+1)+"</a></td>\
 174   </td>\
 175   <td class=\"file\">\
 176   <span class=\"link\" onclick=\"PlaylistCommand('playitem',"+id+")\">"+name+"</span>\
 177   </td>\
 178   <td class=\"move\">\
 179   <span onclick=\"PlaylistCommand('moveup',"+id+")\"><img class=\"small-button\" title=\"Move up\" src=\"images/up-arrow.svg\"></span>\
 180   </td>\
 181   <td class=\"move\">\
 182   <span onclick=\"PlaylistCommand('movedown',"+id+")\"><img class=\"small-button\" title=\"Move down\" src=\"images/down-arrow.svg\"></span>\
 183   </td>\
 184   <td class=\"remove\">\
 185   <span onclick=\"PlaylistCommand('remove',"+id+")\"><img class=\"small-button\" title=\"Remove\" src=\"images/cancel.svg\"></span>\
 186   </td>\
 187   </tr>";
 188   }
 189
 190   itemsText = itemsText + "</table>";
 191
 192   document.getElementById('items').innerHTML=itemsText;
 193   document.getElementById('playlist_menu_top').innerHTML=playlistMenuText;
 194   document.getElementById('playlist_menu_bottom').innerHTML=playlistMenuText;
 195 };
 196
 197 req.open("GET", urlbase+"playlist", true);
 198 req.send();
 199
 200 }
 201
 202 function EditPlayList(dir) {
 203
 204 var req = new XMLHttpRequest();
 205
 206 req.onreadystatechange = function () {
 207   if (this.readyState != 4 || this.status != 200) return;
 208   var returnedData = JSON.parse(this.responseText);
 209
 210   var playlistMenuText = "<table>\
 211   <tr>\
 212   <td><span onclick=\"RefreshPlaylist()\"><img class=\"medium-button\" title=\"Home\" src=\"images/list.svg\"></span><td>\
 213   <td><span onclick=\"return confirm('Add all to the list, are you sure?') ? PlaylistEditCommand('add','"+EscapeStr(dir)+"') : false;\" ><img class=\"medium-button\" title=\"Add all\" src=\"images/plus.svg\"></span><td>\
 214   </tr>\
 215   </table>";
 216
 217   var itemsText= "<table>\
 218   <tr id=\"items_heading\">\
 219   <td></td class=\"track_number\"><td class=\"file\">Title</td><td colspan=\"2\">Controls</td>\
 220   </tr>";
 221
 222   var even = 0;
 223   if (dir) {
 224     var lastSlash=dir.lastIndexOf("/");
 225     if (lastSlash>0) {
 226       var upperLevel=dir.slice(0,lastSlash);
 227     } else {
 228       var upperLevel="";
 229     }
 230     even = ! even;
 231     var itemsText = itemsText + "<tr class=\"itemOdd\">\
 232   <td class=\"track_number\"></td>\
 233   <td class=\"file\"><span class=\"link\" onclick=\"EditPlayList('"+upperLevel+"')\">..</span></td>\
 234   <td></td><td></td>";
 235   }
 236
 237   var i = 0;
 238   for (var key in returnedData) {
 239        var rec=returnedData[key];
 240        var type=rec["type"];
 241        var name=rec["name"];
 242        var lastSlash=name.lastIndexOf("/");
 243        if (lastSlash>0) {
 244          var tailName=name.slice(lastSlash+1);
 245        } else {
 246          var tailName=name
 247        };
 248
 249        if (type == "directory" || type == "file") {
 250          if (even) {
 251            evText="itemEven";
 252          } else {
 253            evText="itemOdd";
 254          };
 255
 256          i = i + 1;
 257          even = ! even;
 258
 259          itemsText = itemsText + "<tr class=\""+evText+"\">\
 260            <td class=\"track_number\">\
 261            <a name=\""+i+"\"></a></td>\
 262            </td>";
 263
 264          if (type == "directory") {
 265            itemsText = itemsText + "<td class=\"file\">\
 266              <span class=\"link\" onclick=\"EditPlayList('"+EscapeStr(name)+"')\">"+tailName+"</span></td><td>\
 267              <span onclick=\"PlaylistEditCommand('add','"+EscapeStr(name)+"')\"><img class=\"small-button\" title=\"Add\" src=\"images/plus.svg\"></span></td>";
 268          };
 269
 270          if (type == "file") {
 271            itemsText = itemsText + "<td class=\"file\">\
 272              <span class=\"link\" onclick=\"PlaylistEditCommand('add','"+EscapeStr(name)+"')\">"+tailName+"</span></td><td>\
 273              <span onclick=\"PlaylistEditCommand('add','"+EscapeStr(name)+"')\"><img class=\"small-button\" title=\"Add\" src=\"images/plus.svg\"></span></td>";
 274          };
 275
 276          itemsText = itemsText + "</tr>";
 277
 278        }
 279
 280   }
 281
 282   var itemsText = itemsText+"</table>";
 283   document.getElementById('items').innerHTML=itemsText;
 284   document.getElementById('playlist_menu_top').innerHTML=playlistMenuText;
 285   document.getElementById('playlist_menu_bottom').innerHTML=playlistMenuText;
 286 };
 287
 288 if (!dir) { dir = ''; };
 289
 290 req.open("GET", urlbase+"lists|edit|"+dir, true);
 291 req.send();
 292
 293 }
 294
 295 function LoadPlayList() {
 296
 297 var req = new XMLHttpRequest();
 298
 299 req.onreadystatechange = function () {
 300   if (this.readyState != 4 || this.status != 200) return;
 301   var returnedData = JSON.parse(this.responseText);
 302   playlistMenuText="<table>\
 303     <tr>\
 304       <td><span onclick=\"RefreshPlaylist()\"><img class=\"medium-button\" title=\"Home\" src=\"images/list.svg\"></span><td>\
 305       <td><span onclick=\"confirm('Clear current playlist, are you sure?') ? PlaylistCommandRefStatus('clear') : false;\" ><img class=\"medium-button\" title=\"Clear all\" src=\"images/cancel.svg\"></span><td>\
 306     </tr>\
 307     </table>";
 308   itemsText="<table>\
 309     <tr id=\"items_heading\">\
 310       <td class=\"track_number\"></td><td class=\"file\">Name</td><td>Controls</td>\
 311     </tr>";
 312
 313   var even = 0;
 314   for (var key in returnedData) {
 315        var name=returnedData[key];
 316
 317        if (even) {
 318          evText="itemEven";
 319        } else {
 320          evText="itemOdd";
 321        };
 322
 323        even = ! even;
 324
 325        itemsText = itemsText + "<tr class=\""+evText+"\">\
 326       <td class=\"track_number\"><a name=\"0\"></a></td>\
 327       <td class=\"file\"><span class=\"link\" onclick=\"PlaylistEditCommandRefFull('load','"+EscapeStr(name)+"')\">"+name+"</td>\
 328       <td class=\"controls\"><span onclick=\"confirm('Delete playlist "+name+", are you sure?') ? DelPlayList('"+EscapeStr(name)+"') : false;\"><img class=\"small-button\" title=\"Delete\" src=\"images/minus.svg\"></span></td>\
 329     </tr>";
 330   }
 331
 332   itemsText=itemsText+"</table>";
 333   document.getElementById('items').innerHTML=itemsText;
 334   document.getElementById('playlist_menu_top').innerHTML=playlistMenuText;
 335   document.getElementById('playlist_menu_bottom').innerHTML=playlistMenuText;
 336 };
 337
 338 req.open("GET", urlbase+"lists|load", true);
 339 req.send();
 340
 341 }
 342
 343 function SavePlayList() {
 344
 345 var name=window.prompt('List name','');
 346
 347 var req = new XMLHttpRequest();
 348
 349 req.onreadystatechange = function () {
 350   if (this.readyState != 4 || this.status != 200) return;
 351   if (this.responseText != 'OK') {
 352     window.alert(this.responseText);
 353   }
 354 };
 355
 356 req.open("GET", urlbase+"lists|save|"+name, true);
 357 req.send();
 358
 359 }
 360
 361 function DelPlayList(item) {
 362
 363 var req = new XMLHttpRequest();
 364
 365 req.onreadystatechange = function () {
 366   if (this.readyState != 4 || this.status != 200) return;
 367   LoadPlayList();
 368   RefreshPageStatus();
 369 };
 370
 371 req.open("GET", urlbase+"lists|delete|"+item, true);
 372 req.send();
 373
 374 }
 375
 376 function RefreshPageContent() {
 377   RefreshPlaylist();
 378   RefreshPageStatus();
 379 }
 380
 381 function Command(cmd) {
 382
 383 var req = new XMLHttpRequest();
 384
 385 req.onreadystatechange = function () {
 386   if (this.readyState != 4 || this.status != 200) return;
 387   RefreshPageStatus();
 388 };
 389
 390 req.open("GET", urlbase+cmd, true);
 391 req.send();
 392
 393 }
 394
 395 function PlaylistCommand(cmd,item) {
 396
 397 var req = new XMLHttpRequest();
 398
 399 req.onreadystatechange = function () {
 400   if (this.readyState != 4 || this.status != 200) return;
 401   RefreshPageContent();
 402 };
 403
 404 req.open("GET", urlbase+"cpl|"+cmd+"|"+item, true);
 405 req.send();
 406
 407 }
 408
 409 function PlaylistCommandRefStatus(cmd,item) {
 410
 411 var req = new XMLHttpRequest();
 412
 413 req.onreadystatechange = function () {
 414   if (this.readyState != 4 || this.status != 200) return;
 415   RefreshPageStatus();
 416 };
 417
 418 req.open("GET", urlbase+"cpl|"+cmd+"|"+item, true);
 419 req.send();
 420
 421 }
 422
 423 function PlaylistEditCommand(cmd,item) {
 424
 425 var req = new XMLHttpRequest();
 426
 427 req.onreadystatechange = function () {
 428   if (this.readyState != 4 || this.status != 200) return;
 429   RefreshPageStatus();
 430 };
 431
 432 req.open("GET", urlbase+"lists|"+cmd+"|"+item, true);
 433 req.send();
 434
 435 }
 436
 437 function PlaylistEditCommandRefFull(cmd,item) {
 438
 439 var req = new XMLHttpRequest();
 440
 441 req.onreadystatechange = function () {
 442   if (this.readyState != 4 || this.status != 200) return;
 443   RefreshPageContent();
 444 };
 445
 446 req.open("GET", urlbase+"lists|"+cmd+"|"+item, true);
 447 req.send();
 448
 449 }
 450
 451 function subscribe_status() {
 452   var xhr = new XMLHttpRequest();
 453
 454   xhr.onreadystatechange = function() {
 455     if (this.readyState != 4) return;
 456     if (this.status == 200) {
 457       RefreshPageStatus()
 458       setTimeout(subscribe_status,1000)
 459     } else {
 460       setTimeout(subscribe_status,15000)
 461     }
 462   }
 463   xhr.open("GET", urlbase+"idle", true);
 464   xhr.send();
 465 }
 466
 467 setTimeout(subscribe_status,5000)
 468 setInterval(PeriodicRefreshTime, 1000);