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YouTube Playlist Time

Adds a timestamp of all videos' time combined.

当前为 2015-08-15 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name        YouTube Playlist Time
  3. // @namespace   YouTube Playlist Time
  4. // @description Adds a timestamp of all videos' time combined.
  5. // @author      kriscross07
  6. // @include     *.youtube.com/*
  7. // @version     1.6
  8. // @grant       none
  9. // @run-at      document-start
  10. // ==/UserScript==
  11.  
  12. addEventListener('DOMContentLoaded',function(){
  13.   var time,mins=0,interval=true;
  14.  
  15.   addControls();
  16.   interval&&setInterval(addControls,100);
  17.   
  18.   function addControls(){
  19.     if(time&&document.contains(time)||!/^https:\/\/www.youtube.com\/playlist/.test(location.href))return;
  20.     
  21.     time=document.createElement('span');
  22.     
  23.     time.onclick=updateTime;
  24.     time.title=time.innerHTML='Click to update time.';
  25.     
  26.     document.querySelector('.playlist-actions').appendChild(time);
  27.     updateTime();
  28.   }
  29.   function updateTime(){
  30.     var stamps=document.querySelectorAll('.timestamp>span');
  31.     mins=0;
  32.     for(var i=0;i<stamps.length;i++){
  33.       var min=stamps[i].innerHTML.split(':');
  34.       mins+=min[1]>=30?parseInt(min[0])+1:parseInt(min[0]);
  35.     }
  36.     time.innerHTML=mins>60?(mins/60).toFixed(1)+' hours.':mins+' minutes.';
  37.   }
  38. });