☰

LeetCode Focus Mode

just focus!

As of 2020-11-02. See the latest version.

  1. // ==UserScript==
  2. // @name         LeetCode Focus Mode
  3. // @namespace    http://tampermonkey.net/
  4. // @version      1.1
  5. // @description  just focus!
  6. // @author       litt1e-p
  7. // @homepage     https://github.com/litt1e-p/TampermonkeyScripts/tree/master/leetcode-focus-mode
  8. // @match        https://leetcode-cn.com/problemset/*
  9. // @match        https://leetcode-cn.com/problems/*
  10. // @match        https://leetcode-cn.com/contest/*/problems/*
  11. // @match        https://leetcode.com/problemset/*
  12. // @match        https://leetcode.com/problems/*
  13. // @match        https://leetcode.com/contest/*/problems/*
  14. // @grant        none
  15. // @run-at       document-idle
  16. // ==/UserScript==
  17. (function(){
  18.     function insertStyle() {
  19.         const style = document.createElement('style');
  20.         style.innerHTML = `
  21.         .lc-nav-func-btn {
  22.             width: 72px;
  23.             height: 35px;
  24.             line-height: 29px;
  25.             background: #fff;
  26.             border: 1px solid #ddd;
  27.             color: #333;
  28.             font-size: 16px;
  29.             z-index: 999999;
  30.             position: absolute;
  31.             right: 20px;
  32.             top: 5px;
  33.         }
  34.         .lc-focus-full {
  35.             width: 96% !important;
  36.         }
  37.         `
  38.         document.body.appendChild(style);
  39.     }
  40.     function insertBtn() {
  41.       var el = document.createElement('button');
  42.       el.setAttribute('class', 'lc-nav-func-btn');
  43.       el.addEventListener('click', btnEvent)
  44.       document.body.appendChild(el);
  45.     }
  46.     function toggleBtn(active = true) {
  47.       var el = document.querySelector('.lc-nav-func-btn');
  48.       if (!el) return;
  49.       el.innerText = active ? 'hide' : 'show';
  50.     }
  51.     function findNav() {
  52.         let rs;
  53.         const divs = [...document.querySelectorAll('div')];
  54.         for(let i = 0, l = divs.length; i < l; i++) {
  55.             const e = divs[i];
  56.             const m = Object.assign({}, e.dataset);         
  57.             if (m.hasOwnProperty('isLoading') && m.hasOwnProperty('status')) {
  58.                 rs = e;
  59.                 break;
  60.             }
  61.         }
  62.         return rs;
  63.     }
  64.     function els () {
  65.       var usNav = '#navbar-root';
  66.       var cat = '.category-group-base';
  67.       var sid = '.blog-sidebar';
  68.       var cnNav = '#noj-navbar';
  69.       var flo = '.floating-layer-container';
  70.       var els = [usNav, cnNav, cat, sid, flo];
  71.       var rs = [];
  72.       for (var i = 0, l = els.length; i < l; i++) {
  73.         const el = document.querySelector(els[i]);
  74.         if (el) rs.push(el);
  75.       }
  76.       const nav2 = findNav();
  77.       return nav2 ? rs.concat([nav2]) : rs;
  78.     }
  79.     function toggleEls(show = true) {
  80.       var ls = els();
  81.       for (let i = 0, l = ls.length; i < l; i++) {
  82.         ls[i].style.display = (show ? 'block' : 'none');
  83.       }
  84.     }
  85.     function toggleFullPage(show = true) {
  86.         const el = document.querySelector('.blog-main');
  87.         if (!el) return;
  88.         if (show) {
  89.             el.classList.remove('lc-focus-full')
  90.         } else {
  91.             el.classList.add('lc-focus-full')
  92.         }
  93.     }
  94.     function btnEvent(e) {
  95.       var el = e.target;
  96.       var s = el.innerText === 'show';
  97.       toggleState(s);
  98.       syncState(s);
  99.     }
  100.     function toggleState(s) {
  101.       setTimeout(() => {
  102.         toggleBtn(s);
  103.         toggleEls(s);
  104.         toggleFullPage(s);
  105.       }, 20);
  106.     }
  107.     function syncState(show = false) {
  108.       window.localStorage.setItem('lc-focus-show#', show ? 1 : 0)
  109.     }
  110.     function savedState() {
  111.       return window.localStorage.getItem('lc-focus-show#')
  112.     }
  113.     function initState() {
  114.       let s = savedState();
  115.       if (s === null) return;
  116.       window.onload = function(){
  117.           toggleState(+s)
  118.       };
  119.     }
  120.     function main() {
  121.       insertStyle();
  122.       insertBtn();
  123.       toggleBtn();
  124.       initState();
  125.     }
  126.     main();
  127. })();