for Drrr

repeat_drrr.js

// press F12 and click the console, paste the code below to the console, then enter.

var ordering = false;
var order_song = function (name) {
  return function(link){
    ordering = true;
    console.log('lnk is:')
    console.log(link);
    $('#form-room-music-url').val(link);
    $('#form-room-music-name').val(name);
    document.getElementsByName('play')[0].click();
  }
}

var progress = '';

/* use funcs below to impl a music auto player */
var monitMusic = function(callback_next){
  return function(){
    try{
      var cur = $("#musicBox > div > div.progress-music.active")[0].style.width;
      if(progress === cur){
        if(!ordering){
          console.log('next');
          callback_next();
        }
      }
      else{
        if(ordering) ordering = false;
        cur = progress;
        console.log('moniting');
      }
    }
    catch(err){
      if(!ordering){
        console.log('cannot get progress, begin.');
        callback_next();
      }
    }
  }
}

function Repeater(title, url){
  this.title = title;
  this.url = url;
  this.interval = undefined;
  this.start = function(){
    this.interval = setInterval(
      monitMusic(() => order_song(this.title)(this.url)),
      2000
    );
  }
  this.stop = function(){
    clearInterval(this.interval);
  }
}

var repeater = new Repeater('', "http://music.163.com/#/song?id=1349303599");
repeater.start();