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Ruler

Inspired by https://www.v2ex.com/t/878358

  1. // ==UserScript==
  2. // @name        Ruler
  3. // @namespace   Violentmonkey Scripts
  4. // @include *
  5. // @grant       none
  6. // @version     1.0
  7. // @license     MIT
  8. // @author      fuckduanluan
  9. // @description Inspired by https://www.v2ex.com/t/878358
  10. // ==/UserScript==
  11.  
  12.  
  13. window.addEventListener('load', () => {
  14.   const dec = decodeURIComponent,
  15.       enc = encodeURIComponent,
  16.       decode = function decode(s) {
  17.     return s.replace(/(%[0-9A-Z]{2})+/g, dec);
  18.   };
  19.  
  20.   function setCookie(key, value, _temp) {
  21.     let _ref = _temp === void 0 ? {} : _temp,
  22.         expires = _ref.expires,
  23.         domain = _ref.domain,
  24.         secure = _ref.secure,
  25.         _ref$path = _ref.path,
  26.         path = _ref$path === void 0 ? '/' : _ref$path;
  27.  
  28.     if (typeof value !== 'string') {
  29.  
  30.       value = String(value);
  31.     }
  32.  
  33.  
  34.     key = enc(key.replace(/%(23|24|26|2B|3A|3C|3E|3D|2F|3F|40|5B|5D|5E|60|7B|7D|7C)/g, dec));
  35.  
  36.  
  37.     value = enc(value.replace(/%(23|24|26|2B|5E|60|7C)/g, dec).replace(/[\\]/g, escape));
  38.     let text = key + "=" + value;
  39.     text += "; path=" + path.split(';')[0];
  40.  
  41.     typeof expires === 'number' && (expires = new Date(Date.now() + expires * 36e5)); 
  42.  
  43.  
  44.     expires instanceof Date && (text += "; expires=" + expires.toUTCString());
  45.     typeof domain === 'string' && (text += "; domain=" + domain.split(';')[0]);
  46.     secure && (text += '; secure');
  47.     return document.cookie = text;
  48.   }
  49.  
  50.   function getCookie(key) {
  51.     const cookies = document.cookie ? document.cookie.split('; ') : [],
  52.         rst = [];
  53.  
  54.     for (let i = 0, len = cookies.length; i < len; ++i) {
  55.       let part = cookies[i].split('='),
  56.           name = decode(part[0]),
  57.           value = decode(part.slice(1).join('='));
  58.       name === key && rst.push(value);
  59.     }
  60.  
  61.     return rst.length ? rst.length === 1 ? rst[0] : rst : null;
  62.   }
  63.   if (getCookie('hasBanner')) return;
  64.   
  65.   const banner = document.createElement('div');
  66.   banner.style.cssText = `
  67.     color: #eee;
  68.     font-size: 24px;
  69.     text-shadow: 0 3px 3px #666;
  70.     line-height: 22px;
  71.     padding: 8px;
  72.     font-family: "Microsoft Yahei";
  73.     text-align: center;
  74.     cursor: pointer;
  75.     position: fixed;
  76.     top: 0px;
  77.     left: 0px;
  78.     right: 0px;
  79.     z-index: 9999;
  80.     background: linear-gradient(-45deg, #0057b7 25%, #ffd700 0, #ffd700 50%, #0057b7 0, #0057b7 75%, #ffd700 0);
  81.     background-size: 100px 100px;
  82.     box-shadow: 0 3px 10px #aaa;
  83.   `;
  84.   banner.textContent = '我们终将在没有黑暗的地方相见';
  85.   banner.addEventListener('click', function() {
  86.     this.style.display = 'none';
  87.     setCookie('hasBanner', 1, { expires: 24 * 7 });
  88.   });
  89.   document.body.appendChild(banner);
  90. });