Inspired by https://www.v2ex.com/t/878358
// ==UserScript==
// @name Ruler
// @namespace Violentmonkey Scripts
// @include *
// @grant none
// @version 1.0
// @license MIT
// @author fuckduanluan
// @description Inspired by https://www.v2ex.com/t/878358
// ==/UserScript==
window.addEventListener('load', () => {
const dec = decodeURIComponent,
enc = encodeURIComponent,
decode = function decode(s) {
return s.replace(/(%[0-9A-Z]{2})+/g, dec);
};
function setCookie(key, value, _temp) {
let _ref = _temp === void 0 ? {} : _temp,
expires = _ref.expires,
domain = _ref.domain,
secure = _ref.secure,
_ref$path = _ref.path,
path = _ref$path === void 0 ? '/' : _ref$path;
if (typeof value !== 'string') {
value = String(value);
}
key = enc(key.replace(/%(23|24|26|2B|3A|3C|3E|3D|2F|3F|40|5B|5D|5E|60|7B|7D|7C)/g, dec));
value = enc(value.replace(/%(23|24|26|2B|5E|60|7C)/g, dec).replace(/[\\]/g, escape));
let text = key + "=" + value;
text += "; path=" + path.split(';')[0];
typeof expires === 'number' && (expires = new Date(Date.now() + expires * 36e5));
expires instanceof Date && (text += "; expires=" + expires.toUTCString());
typeof domain === 'string' && (text += "; domain=" + domain.split(';')[0]);
secure && (text += '; secure');
return document.cookie = text;
}
function getCookie(key) {
const cookies = document.cookie ? document.cookie.split('; ') : [],
rst = [];
for (let i = 0, len = cookies.length; i < len; ++i) {
let part = cookies[i].split('='),
name = decode(part[0]),
value = decode(part.slice(1).join('='));
name === key && rst.push(value);
}
return rst.length ? rst.length === 1 ? rst[0] : rst : null;
}
if (getCookie('hasBanner')) return;
const banner = document.createElement('div');
banner.style.cssText = `
color: #eee;
font-size: 24px;
text-shadow: 0 3px 3px #666;
line-height: 22px;
padding: 8px;
font-family: "Microsoft Yahei";
text-align: center;
cursor: pointer;
position: fixed;
top: 0px;
left: 0px;
right: 0px;
z-index: 9999;
background: linear-gradient(-45deg, #0057b7 25%, #ffd700 0, #ffd700 50%, #0057b7 0, #0057b7 75%, #ffd700 0);
background-size: 100px 100px;
box-shadow: 0 3px 10px #aaa;
`;
banner.textContent = '我们终将在没有黑暗的地方相见';
banner.addEventListener('click', function() {
this.style.display = 'none';
setCookie('hasBanner', 1, { expires: 24 * 7 });
});
document.body.appendChild(banner);
});