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Toc Bar, 自动生成文章大纲。知乎、微信公众号等阅读好伴侣

自动生成文章大纲目录，在页面右侧展示一个浮动的组件。覆盖常用在线阅读资讯站（技术向）。github/medium/MDN/掘金/简书等

当前为 2022-04-13 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name              Toc Bar, auto-generating table of content
  3. // @name:zh-CN        Toc Bar, 自动生成文章大纲。知乎、微信公众号等阅读好伴侣
  4. // @author            hikerpig
  5. // @namespace         https://github.com/hikerpig
  6. // @license           MIT
  7. // @description       A floating table of content widget
  8. // @description:zh-CN 自动生成文章大纲目录，在页面右侧展示一个浮动的组件。覆盖常用在线阅读资讯站（技术向）。github/medium/MDN/掘金/简书等
  9. // @version           1.9.3
  10. // @match             *://www.jianshu.com/p/*
  11. // @match             *://cdn2.jianshu.io/p/*
  12. // @match             *://zhuanlan.zhihu.com/p/*
  13. // @match             *://www.zhihu.com/pub/reader/*
  14. // @match             *://mp.weixin.qq.com/s*
  15. // @match             *://cnodejs.org/topic/*
  16. // @match             *://*zcfy.cc/article/*
  17. // @match             *://juejin.cn/post/*
  18. // @match             *://juejin.cn/book/*
  19. // @match             *://dev.to/*/*
  20. // @exclude           *://dev.to/settings/*
  21. // @match             *://web.dev/*
  22. // @match             *://medium.com/*
  23. // @exclude           *://medium.com/media/*
  24. // @match             *://itnext.io/*
  25. // @match             *://www.infoq.cn/article/*
  26. // @match             *://towardsdatascience.com/*
  27. // @match             *://hackernoon.com/*
  28. // @match             *://css-tricks.com/*
  29. // @match             *://www.smashingmagazine.com/*/*
  30. // @match             *://distill.pub/*
  31. // @match             *://github.com/*/*
  32. // @match             *://github.com/*/issues/*
  33. // @match             *://developer.mozilla.org/*/docs/*
  34. // @match             *://learning.oreilly.com/library/view/*
  35. // @match             *://developer.chrome.com/extensions/*
  36. // @match             *://app.getpocket.com/read/*
  37. // @match             *://indepth.dev/posts/*
  38. // @match             *://gitlab.com/*
  39. // @run-at            document-idle
  40. // @grant             GM_getResourceText
  41. // @grant             GM_addStyle
  42. // @grant             GM_setValue
  43. // @grant             GM_getValue
  44. // @require           https://cdnjs.cloudflare.com/ajax/libs/tocbot/4.11.1/tocbot.min.js
  45. // @icon              https://raw.githubusercontent.com/hikerpig/toc-bar-userscript/master/toc-logo.svg
  46. // @homepageURL       https://github.com/hikerpig/toc-bar-userscript
  47. // ==/UserScript==
  48.  
  49. (function () {
  50.   /**
  51.    * @typedef {Object} SiteSetting
  52.    * @property {string} contentSelector
  53.    * @property {string} siteName
  54.    * @property {Object} style
  55.    * @property {Number} scrollSmoothOffset
  56.    * @property {Number} initialTop
  57.    * @property {Number} headingsOffset
  58.    * @property {() => Boolean} shouldShow
  59.    * @property {(ele) => HTMLElement} findHeaderId
  60.    * @property {(e) => void} onClick
  61.    */
  62.  
  63.   /** @type {{[key: string]: Partial<SiteSetting>}} */
  64.   const SITE_SETTINGS = {
  65.     jianshu: {
  66.       contentSelector: '.ouvJEz',
  67.       style: {
  68.         top: '55px',
  69.         color: '#ea6f5a',
  70.       },
  71.     },
  72.     'zhuanlan.zhihu.com': {
  73.       contentSelector: 'article',
  74.       scrollSmoothOffset: -52,
  75.       shouldShow() {
  76.         return location.pathname.startsWith('/p/')
  77.       },
  78.     },
  79.     'www.zhihu.com': {
  80.       contentSelector: '.reader-chapter-content',
  81.       scrollSmoothOffset: -52,
  82.     },
  83.     zcfy: {
  84.       contentSelector: '.markdown-body',
  85.     },
  86.     qq: {
  87.       contentSelector: '.rich_media_content',
  88.     },
  89.     'juejin.cn': function() {
  90.       let contentSelector = '.article' // post
  91.       if (/\/book\//.test(location.pathname)) {
  92.         contentSelector = '.book-body'
  93.       }
  94.       return {
  95.         contentSelector,
  96.       }
  97.     },
  98.     'dev.to': {
  99.       contentSelector: 'article',
  100.       scrollSmoothOffset: -56,
  101.       shouldShow() {
  102.         return ['/search', '/top/'].every(s => !location.pathname.startsWith(s))
  103.       },
  104.     },
  105.     'medium.com': {
  106.       contentSelector: 'article'
  107.     },
  108.     'hackernoon.com': {
  109.       contentSelector: 'main',
  110.       scrollSmoothOffset: -80,
  111.     },
  112.     'towardsdatascience.com': {
  113.       contentSelector: 'article'
  114.     },
  115.     'css-tricks.com': {
  116.       contentSelector: 'main'
  117.     },
  118.     'distill.pub': {
  119.       contentSelector: 'body'
  120.     },
  121.     'smashingmagazine': {
  122.       contentSelector: 'article'
  123.     },
  124.     'web.dev': {
  125.       contentSelector: '#content'
  126.     },
  127.     'github.com': function () {
  128.       const README_SEL = '#readme'
  129.       const WIKI_CONTENT_SEL = '#wiki-body'
  130.       const ISSUE_CONTENT_SEL = '.comment .comment-body'
  131.  
  132.       const matchedSel = [README_SEL, ISSUE_CONTENT_SEL, WIKI_CONTENT_SEL].find((sel) => {
  133.         const c = document.querySelector(sel)
  134.         if (c) {
  135.           return true
  136.         }
  137.       })
  138.  
  139.       if (!matchedSel) {
  140.         return {
  141.           contentSelect: false,
  142.         }
  143.       }
  144.  
  145.       const isIssueDetail = /\/issues\//.test(location.pathname)
  146.       const ISSUE_DETAIL_HEADING_OFFSET = 60
  147.  
  148.       /** Ugly hack for github issues */
  149.       const onClick = isIssueDetail ? function (e) {
  150.         const href = e.target.getAttribute('href')
  151.         const header = document.body.querySelector(href)
  152.         if (header) {
  153.           const rect = header.getBoundingClientRect()
  154.           const currentWindowScrollTop = document.documentElement.scrollTop
  155.           const scrollY = rect.y + currentWindowScrollTop - ISSUE_DETAIL_HEADING_OFFSET
  156.  
  157.           window.scrollTo(0, scrollY)
  158.  
  159.           location.hash = href
  160.  
  161.           e.preventDefault()
  162.           e.stopPropagation()
  163.         }
  164.       }: null
  165.  
  166.       return {
  167.         siteName: 'github.com',
  168.         contentSelector: matchedSel,
  169.         hasInnerContainers: isIssueDetail ? true: false,
  170.         scrollSmoothOffset: isIssueDetail ? -ISSUE_DETAIL_HEADING_OFFSET: 0,
  171.         headingsOffset: isIssueDetail ? ISSUE_DETAIL_HEADING_OFFSET: 0,
  172.         initialTop: 500,
  173.         onClick,
  174.         findHeaderId(ele) {
  175.           let id
  176.           let anchor = ele.querySelector('.anchor')
  177.           if (anchor) id = anchor.getAttribute('id')
  178.  
  179.           if (!anchor) {
  180.             anchor = ele.querySelector('a')
  181.             if (anchor) id = anchor.hash.replace(/^#/, '')
  182.           }
  183.           return id
  184.         },
  185.       }
  186.     },
  187.     'developer.mozilla.org': {
  188.       contentSelector: '#content'
  189.     },
  190.     'learning.oreilly.com': {
  191.       contentSelector: '#sbo-rt-content'
  192.     },
  193.     'developer.chrome.com': {
  194.       contentSelector: 'article'
  195.     },
  196.     'www.infoq.cn': {
  197.       contentSelector: '.article-main',
  198.       scrollSmoothOffset: -107
  199.     },
  200.     'app.getpocket.com': {
  201.       contentSelector: '[role=main]',
  202.     },
  203.     'indepth.dev': {
  204.       contentSelector: '.content',
  205.     },
  206.     'gitlab.com': {
  207.       contentSelector:  '.file-content',
  208.       scrollSmoothOffset: -40
  209.     },
  210.   }
  211.  
  212.   function getSiteInfo() {
  213.     let siteName
  214.     if (SITE_SETTINGS[location.hostname]) {
  215.       siteName = location.hostname
  216.     } else {
  217.       const match = location.href.match(
  218.         /([\d\w]+)\.(com|cn|net|org|im|io|cc|site|tv)/i
  219.       )
  220.       siteName = match ? match[1] : null
  221.     }
  222.     if (siteName && SITE_SETTINGS[siteName]) {
  223.       return {
  224.         siteName,
  225.         siteSetting: SITE_SETTINGS[siteName],
  226.       }
  227.     }
  228.   }
  229.  
  230.   function getPageTocOptions() {
  231.     let siteInfo = getSiteInfo()
  232.     if (siteInfo) {
  233.       if (typeof siteInfo.siteSetting === 'function') {
  234.         return siteInfo.siteSetting()
  235.       }
  236.  
  237.       let siteSetting = { ...siteInfo.siteSetting }
  238.       if (siteSetting.shouldShow && !siteSetting.shouldShow()) {
  239.         return
  240.       }
  241.       if (typeof siteSetting.contentSelector === 'function') {
  242.         const contentSelector = siteSetting.contentSelector()
  243.         if (!contentSelector) return
  244.         siteSetting = {...siteSetting, contentSelector}
  245.       }
  246.       if (typeof siteSetting.scrollSmoothOffset === 'function') {
  247.         siteSetting.scrollSmoothOffset = siteSetting.scrollSmoothOffset()
  248.       }
  249.  
  250.       console.log('[toc-bar] found site info for', siteInfo.siteName)
  251.       return siteSetting
  252.     }
  253.   }
  254.  
  255.   function guessThemeColor() {
  256.     const meta = document.head.querySelector('meta[name="theme-color"]')
  257.     if (meta) {
  258.       return meta.getAttribute('content')
  259.     }
  260.   }
  261.  
  262.   /**
  263.    * @param {String} content
  264.    * @return {String}
  265.    */
  266.   function doContentHash(content) {
  267.     const val = content.split('').reduce((prevHash, currVal) => (((prevHash << 5) - prevHash) + currVal.charCodeAt(0))|0, 0);
  268.     return val.toString(32)
  269.   }
  270.  
  271.   const POSITION_STORAGE = {
  272.     cache: null,
  273.     checkCache() {
  274.       if (!POSITION_STORAGE.cache) {
  275.         POSITION_STORAGE.cache = GM_getValue('tocbar-positions', {})
  276.       }
  277.     },
  278.     get(k) {
  279.       k = k || location.host
  280.       POSITION_STORAGE.checkCache()
  281.       return POSITION_STORAGE.cache[k]
  282.     },
  283.     set(k, position) {
  284.       k = k || location.host
  285.       POSITION_STORAGE.checkCache()
  286.       POSITION_STORAGE.cache[k] = position
  287.       GM_setValue('tocbar-positions', POSITION_STORAGE.cache)
  288.     },
  289.   }
  290.  
  291.   function isEmpty(input) {
  292.     if (input) {
  293.       return Object.keys(input).length === 0
  294.     }
  295.     return true
  296.   }
  297.  
  298.   /** 宽度，也用于计算拖动时的最小 right */
  299.   const TOC_BAR_WIDTH = 340
  300.  
  301.   const TOC_BAR_DEFAULT_ACTIVE_COLOR = '#54BC4B';
  302.  
  303.   // ---------------- TocBar ----------------------
  304.   const TOC_BAR_STYLE = `
  305. .toc-bar {
  306.   --toc-bar-active-color: ${TOC_BAR_DEFAULT_ACTIVE_COLOR};
  307.   --toc-bar-text-color: #333;
  308.   --toc-bar-background-color: #FEFEFE;
  309.  
  310.   position: fixed;
  311.   z-index: 9000;
  312.   right: 5px;
  313.   top: 80px;
  314.   width: ${TOC_BAR_WIDTH}px;
  315.   font-size: 14px;
  316.   box-sizing: border-box;
  317.   padding: 0 10px 10px 0;
  318.   box-shadow: 0 1px 3px #DDD;
  319.   border-radius: 4px;
  320.   transition: width 0.2s ease;
  321.   color: var(--toc-bar-text-color);
  322.   background: var(--toc-bar-background-color);
  323.  
  324.   user-select:none;
  325.   -moz-user-select:none;
  326.   -webkit-user-select: none;
  327.   -ms-user-select: none;
  328. }
  329.  
  330. .toc-bar[colorscheme="dark"] {
  331.   --toc-bar-text-color: #fafafa;
  332.   --toc-bar-background-color: #333;
  333. }
  334. .toc-bar[colorscheme="dark"] svg {
  335.   fill: var(--toc-bar-text-color);
  336.   stroke: var(--toc-bar-text-color);
  337. }
  338.  
  339. .toc-bar.toc-bar--collapsed {
  340.   width: 30px;
  341.   height: 30px;
  342.   padding: 0;
  343.   overflow: hidden;
  344. }
  345.  
  346. .toc-bar--collapsed .toc {
  347.   display: none;
  348. }
  349.  
  350. .toc-bar--collapsed .hidden-when-collapsed {
  351.   display: none;
  352. }
  353.  
  354. .toc-bar__header {
  355.   font-weight: bold;
  356.   padding-bottom: 5px;
  357.   display: flex;
  358.   justify-content: space-between;
  359.   align-items: center;
  360.   cursor: move;
  361. }
  362.  
  363. .toc-bar__refresh {
  364.   position: relative;
  365.   top: -2px;
  366. }
  367.  
  368. .toc-bar__icon-btn {
  369.   height: 1em;
  370.   width: 1em;
  371.   cursor: pointer;
  372.   transition: transform 0.2s ease;
  373. }
  374.  
  375. .toc-bar__icon-btn:hover {
  376.   opacity: 0.7;
  377. }
  378.  
  379. .toc-bar__icon-btn svg {
  380.   max-width: 100%;
  381.   max-height: 100%;
  382.   vertical-align: top;
  383. }
  384.  
  385. .toc-bar__actions {
  386.   align-items: center;
  387. }
  388. .toc-bar__actions .toc-bar__icon-btn {
  389.   margin-left: 1em;
  390. }
  391.  
  392. .toc-bar__scheme {
  393.   transform: translateY(-1px) scale(1.1);
  394. }
  395.  
  396. .toc-bar__header-left {
  397.   align-items: center;
  398. }
  399.  
  400. .toc-bar__toggle {
  401.   cursor: pointer;
  402.   padding: 8px 8px;
  403.   box-sizing: content-box;
  404.   transition: transform 0.2s ease;
  405. }
  406.  
  407. .toc-bar__title {
  408.   margin-left: 5px;
  409. }
  410.  
  411. .toc-bar a.toc-link {
  412.   overflow: hidden;
  413.   text-overflow: ellipsis;
  414.   white-space: nowrap;
  415.   display: block;
  416.   line-height: 1.6;
  417. }
  418.  
  419. .flex {
  420.   display: flex;
  421. }
  422.  
  423. /* tocbot related */
  424. .toc-bar__toc {
  425.   max-height: 80vh;
  426.   overflow-y: auto;
  427. }
  428.  
  429. .toc-list-item > a:hover {
  430.   text-decoration: underline;
  431. }
  432.  
  433. .toc-list {
  434.   padding-inline-start: 0;
  435. }
  436.  
  437. .toc-bar__toc > .toc-list {
  438.   margin: 0;
  439.   overflow: hidden;
  440.   position: relative;
  441.   padding-left: 5px;
  442. }
  443.  
  444. .toc-bar__toc>.toc-list li {
  445.   list-style: none;
  446.   padding-left: 8px;
  447.   position: static;
  448. }
  449.  
  450. a.toc-link {
  451.   color: currentColor;
  452.   height: 100%;
  453. }
  454.  
  455. .is-collapsible {
  456.   max-height: 1000px;
  457.   overflow: hidden;
  458.   transition: all 300ms ease-in-out;
  459. }
  460.  
  461. .is-collapsed {
  462.   max-height: 0;
  463. }
  464.  
  465. .is-position-fixed {
  466.   position: fixed !important;
  467.   top: 0;
  468. }
  469.  
  470. .is-active-link {
  471.   font-weight: 700;
  472. }
  473.  
  474. .toc-link::before {
  475.   background-color: var(--toc-bar-background-color);
  476.   content: ' ';
  477.   display: inline-block;
  478.   height: inherit;
  479.   left: 0;
  480.   margin-top: -1px;
  481.   position: absolute;
  482.   width: 2px;
  483. }
  484.  
  485. .is-active-link::before {
  486.   background-color: var(--toc-bar-active-color);
  487. }
  488.  
  489. @media print {
  490.   .toc-bar__no-print { display: none !important; }
  491. }
  492. /* end tocbot related */
  493. `
  494.  
  495.   const TOCBOT_CONTAINTER_CLASS = 'toc-bar__toc'
  496.  
  497.   const DARKMODE_KEY = 'tocbar-darkmode'
  498.  
  499.   /**
  500.    * @typedef {Object} TocBarOptions
  501.    * @property {String} [siteName]
  502.    * @property {Number} [initialTop]
  503.    */
  504.  
  505.   /**
  506.    * @class
  507.    * @param {TocBarOptions} options
  508.    */
  509.   function TocBar(options={}) {
  510.     this.options = options
  511.  
  512.     // inject style
  513.     GM_addStyle(TOC_BAR_STYLE)
  514.  
  515.     this.element = document.createElement('div')
  516.     this.element.id = 'toc-bar'
  517.     this.element.classList.add('toc-bar', 'toc-bar__no-print')
  518.     document.body.appendChild(this.element)
  519.  
  520.     /** @type {Boolean} */
  521.     this.visible = true
  522.  
  523.     this.initHeader()
  524.  
  525.     // create a container tocbot
  526.     const tocElement = document.createElement('div')
  527.     this.tocElement = tocElement
  528.     tocElement.classList.add(TOCBOT_CONTAINTER_CLASS)
  529.     this.element.appendChild(tocElement)
  530.  
  531.     POSITION_STORAGE.checkCache()
  532.     const cachedPosition = POSITION_STORAGE.get(options.siteName)
  533.     if (!isEmpty(cachedPosition)) {
  534.       this.element.style.top = `${Math.max(0, cachedPosition.top)}px`
  535.       this.element.style.right = `${cachedPosition.right}px`
  536.     } else if (options.hasOwnProperty('initialTop')) {
  537.       this.element.style.top = `${options.initialTop}px`
  538.     }
  539.  
  540.     if (GM_getValue('tocbar-hidden', false)) {
  541.       this.toggle(false)
  542.     }
  543.  
  544.     const isDark = Boolean(window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches);
  545.     /** @type {Boolean} */
  546.     this.isDarkMode = isDark
  547.  
  548.     if (GM_getValue(DARKMODE_KEY, false)) {
  549.       this.toggleScheme(true)
  550.     }
  551.   }
  552.  
  553.   const REFRESH_ICON = `<svg t="1593614403764" class="icon" viewBox="0 0 1024 1024" version="1.1" xmlns="http://www.w3.org/2000/svg" p-id="5002" width="200" height="200"><path d="M918 702.8 918 702.8c45.6-98.8 52-206 26-303.6-30-112.4-104-212.8-211.6-273.6L780 23.2l-270.8 70.8 121.2 252.4 50-107.6c72.8 44.4 122.8 114.4 144 192.8 18.8 70.8 14.4 147.6-18.8 219.6-42 91.2-120.8 153.6-210.8 177.6-13.2 3.6-26.4 6-39.6 8l56 115.6c5.2-1.2 10.4-2.4 16-4C750.8 915.2 860 828.8 918 702.8L918 702.8M343.2 793.2c-74-44.4-124.8-114.8-146-194-18.8-70.8-14.4-147.6 18.8-219.6 42-91.2 120.8-153.6 210.8-177.6 14.8-4 30-6.8 45.6-8.8l-55.6-116c-7.2 1.6-14.8 3.2-22 5.2-124 33.2-233.6 119.6-291.2 245.6-45.6 98.8-52 206-26 303.2l0 0.4c30.4 113.2 105.2 214 213.6 274.8l-45.2 98 270.4-72-122-252L343.2 793.2 343.2 793.2M343.2 793.2 343.2 793.2z" p-id="5003"></path></svg>`
  554.  
  555.   const TOC_ICON = `
  556. <?xml version="1.0" encoding="utf-8"?>
  557. <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
  558.     viewBox="0 0 1024 1024" style="enable-background:new 0 0 1024 1024;" xml:space="preserve">
  559. <g>
  560.   <g>
  561.     <path d="M835.2,45.9H105.2v166.8l93.2,61.5h115.8H356h30.6v-82.8H134.2v-24.9h286.2v107.6h32.2V141.6H134.2V118h672.1v23.6H486.4
  562.       v132.5h32V166.5h287.8v24.9H553.8v82.8h114.1H693h225.6V114.5L835.2,45.9z M806.2,93.2H134.2V67.2h672.1v26.1H806.2z"/>
  563.     <polygon points="449.3,1008.2 668,1008.2 668,268.9 553.8,268.9 553.8,925.4 518.4,925.4 518.4,268.9 486.4,268.9 486.4,925.4
  564.       452.6,925.4 452.6,268.9 420.4,268.9 420.4,925.4 386.6,925.4 386.6,268.9 356,268.9 356,946.7 		"/>
  565.   </g>
  566. </g>
  567. </svg>
  568. `
  569.  
  570.   const LIGHT_ICON = `
  571.   <?xml version="1.0" encoding="iso-8859-1"?>
  572.   <!-- Generator: Adobe Illustrator 18.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
  573.   <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
  574.   <svg version="1.1" id="Capa_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
  575.      viewBox="0 0 181.328 181.328" style="enable-background:new 0 0 181.328 181.328;" xml:space="preserve" style="transform: translateY(-1px);">
  576.   <g>
  577.     <path d="M118.473,46.308V14.833c0-4.142-3.358-7.5-7.5-7.5H70.357c-4.142,0-7.5,3.358-7.5,7.5v31.474
  578.       C51.621,54.767,44.34,68.214,44.34,83.331c0,25.543,20.781,46.324,46.324,46.324s46.324-20.781,46.324-46.324
  579.       C136.988,68.215,129.708,54.769,118.473,46.308z M77.857,22.333h25.615v16.489c-4.071-1.174-8.365-1.815-12.809-1.815
  580.       c-4.443,0-8.736,0.642-12.807,1.814V22.333z M90.664,114.655c-17.273,0-31.324-14.052-31.324-31.324
  581.       c0-17.272,14.052-31.324,31.324-31.324s31.324,14.052,31.324,31.324C121.988,100.604,107.937,114.655,90.664,114.655z"/>
  582.     <path d="M40.595,83.331c0-4.142-3.358-7.5-7.5-7.5H7.5c-4.142,0-7.5,3.358-7.5,7.5c0,4.142,3.358,7.5,7.5,7.5h25.595
  583.       C37.237,90.831,40.595,87.473,40.595,83.331z"/>
  584.     <path d="M173.828,75.831h-25.595c-4.142,0-7.5,3.358-7.5,7.5c0,4.142,3.358,7.5,7.5,7.5h25.595c4.142,0,7.5-3.358,7.5-7.5
  585.       C181.328,79.189,177.97,75.831,173.828,75.831z"/>
  586.     <path d="M44.654,47.926c1.464,1.465,3.384,2.197,5.303,2.197c1.919,0,3.839-0.732,5.303-2.197c2.929-2.929,2.929-7.678,0-10.606
  587.       L37.162,19.222c-2.929-2.93-7.678-2.929-10.606,0c-2.929,2.929-2.929,7.678,0,10.606L44.654,47.926z"/>
  588.     <path d="M136.674,118.735c-2.93-2.929-7.678-2.928-10.607,0c-2.929,2.929-2.928,7.678,0,10.607l18.1,18.098
  589.       c1.465,1.464,3.384,2.196,5.303,2.196c1.919,0,3.839-0.732,5.304-2.197c2.929-2.929,2.928-7.678,0-10.607L136.674,118.735z"/>
  590.     <path d="M44.654,118.736l-18.099,18.098c-2.929,2.929-2.929,7.677,0,10.607c1.464,1.465,3.384,2.197,5.303,2.197
  591.       c1.919,0,3.839-0.732,5.303-2.197l18.099-18.098c2.929-2.929,2.929-7.677,0-10.606C52.332,115.807,47.583,115.807,44.654,118.736z"
  592.       />
  593.     <path d="M131.371,50.123c1.919,0,3.839-0.732,5.303-2.196l18.1-18.098c2.929-2.929,2.929-7.678,0-10.607
  594.       c-2.929-2.928-7.678-2.929-10.607-0.001l-18.1,18.098c-2.929,2.929-2.929,7.678,0,10.607
  595.       C127.532,49.391,129.452,50.123,131.371,50.123z"/>
  596.     <path d="M90.664,133.4c-4.142,0-7.5,3.358-7.5,7.5v25.595c0,4.142,3.358,7.5,7.5,7.5c4.142,0,7.5-3.358,7.5-7.5V140.9
  597.       C98.164,136.758,94.806,133.4,90.664,133.4z"/>
  598.   </g>
  599.   </svg>
  600. `
  601.  
  602.   TocBar.prototype = {
  603.     /**
  604.      * @method TocBar
  605.      */
  606.     initHeader() {
  607.       const header = document.createElement('div')
  608.       header.classList.add('toc-bar__header')
  609.       header.innerHTML = `
  610.     <div class="flex toc-bar__header-left">
  611.       <div class="toc-bar__toggle toc-bar__icon-btn" title="Toggle TOC Bar">
  612.         ${TOC_ICON}
  613.       </div>
  614.       <div class="toc-bar__title hidden-when-collapsed">TOC Bar</div>
  615.     </div>
  616.     <div class="toc-bar__actions flex hidden-when-collapsed">
  617.       <div class="toc-bar__scheme toc-bar__icon-btn" title="Toggle Light/Dark Mode">
  618.         ${LIGHT_ICON}
  619.       </div>
  620.       <div class="toc-bar__refresh toc-bar__icon-btn" title="Refresh TOC">
  621.         ${REFRESH_ICON}
  622.       </div>
  623.     </div>
  624.     `
  625.       const toggleElement = header.querySelector('.toc-bar__toggle')
  626.       toggleElement.addEventListener('click', () => {
  627.         this.toggle()
  628.         GM_setValue('tocbar-hidden', !this.visible)
  629.       })
  630.       this.logoSvg = toggleElement.querySelector('svg')
  631.  
  632.       const refreshElement = header.querySelector('.toc-bar__refresh')
  633.       refreshElement.addEventListener('click', () => {
  634.         try {
  635.           tocbot.refresh()
  636.         } catch (error) {
  637.           console.warn('error in tocbot.refresh', error)
  638.         }
  639.       })
  640.  
  641.       const toggleSchemeElement = header.querySelector('.toc-bar__scheme')
  642.       toggleSchemeElement.addEventListener('click', () => {
  643.         this.toggleScheme()
  644.       })
  645.       // ---------------- header drag ----------------------
  646.       const dragState = {
  647.         startMouseX: 0,
  648.         startMouseY: 0,
  649.         startPositionX: 0,
  650.         startPositionY: 0,
  651.         startElementDisToRight: 0,
  652.         isDragging: false,
  653.         curRight: 0,
  654.         curTop: 0,
  655.       }
  656.  
  657.       const onMouseMove = (e) => {
  658.         if (!dragState.isDragging) return
  659.         const deltaX = e.pageX - dragState.startMouseX
  660.         const deltaY = e.pageY - dragState.startMouseY
  661.         // 要换算为 right 数字
  662.         const newRight = Math.max(30 - TOC_BAR_WIDTH, dragState.startElementDisToRight - deltaX)
  663.         const newTop = Math.max(0, dragState.startPositionY + deltaY)
  664.         Object.assign(dragState, {
  665.           curTop: newTop,
  666.           curRight: newRight,
  667.         })
  668.         // console.table({ newRight, newTop})
  669.         this.element.style.right = `${newRight}px`
  670.         this.element.style.top = `${newTop}px`
  671.       }
  672.  
  673.       const onMouseUp = () => {
  674.         Object.assign(dragState, {
  675.           isDragging: false,
  676.         })
  677.         document.body.removeEventListener('mousemove', onMouseMove)
  678.         document.body.removeEventListener('mouseup', onMouseUp)
  679.  
  680.         POSITION_STORAGE.set(this.options.siteName, {
  681.           top: dragState.curTop,
  682.           right: dragState.curRight,
  683.         })
  684.       }
  685.  
  686.       header.addEventListener('mousedown', (e) => {
  687.         if (e.target === toggleElement) return
  688.         const bbox = this.element.getBoundingClientRect()
  689.         Object.assign(dragState, {
  690.           isDragging: true,
  691.           startMouseX: e.pageX,
  692.           startMouseY: e.pageY,
  693.           startPositionX: bbox.x,
  694.           startPositionY: bbox.y,
  695.           startElementDisToRight: document.body.clientWidth - bbox.right,
  696.         })
  697.         document.body.addEventListener('mousemove', onMouseMove)
  698.         document.body.addEventListener('mouseup', onMouseUp)
  699.       })
  700.       // ----------------end header drag -------------------
  701.  
  702.       this.element.appendChild(header)
  703.     },
  704.     /**
  705.      * @method TocBar
  706.      */
  707.     initTocbot(options) {
  708.       const me = this
  709.  
  710.       /**
  711.        * records for existing ids to prevent id conflict (when there are headings of same content)
  712.        * @type {Object} {[key: string]: number}
  713.        **/
  714.       this._tocContentCountCache = {}
  715.  
  716.       const tocbotOptions = Object.assign(
  717.         {},
  718.         {
  719.           tocSelector: `.${TOCBOT_CONTAINTER_CLASS}`,
  720.           scrollSmoothOffset: options.scrollSmoothOffset || 0,
  721.           headingObjectCallback(obj, ele) {
  722.             // if there is no id on the header element, add one that derived from hash of header title
  723.             if (!ele.id) {
  724.               let newId
  725.               if (options.findHeaderId) {
  726.                 newId = options.findHeaderId(ele)
  727.               }
  728.               if (!newId) {
  729.                 newId = me.generateHeaderId(obj, ele)
  730.                 ele.setAttribute('id', newId)
  731.               }
  732.               if (newId) obj.id = newId
  733.             }
  734.             return obj
  735.           },
  736.           headingSelector: 'h1, h2, h3, h4, h5',
  737.           collapseDepth: 4,
  738.         },
  739.         options
  740.       )
  741.       // console.log('tocbotOptions', tocbotOptions);
  742.       try {
  743.         tocbot.init(tocbotOptions)
  744.       } catch (error) {
  745.         console.warn('error in tocbot.init', error)
  746.       }
  747.     },
  748.     generateHeaderId(obj, ele) {
  749.       const hash = doContentHash(obj.textContent)
  750.       let count = 1
  751.       let resultHash = hash
  752.       if (this._tocContentCountCache[hash]) {
  753.         count = this._tocContentCountCache[hash] + 1
  754.         resultHash = doContentHash(`${hash}-${count}`)
  755.       }
  756.       this._tocContentCountCache[hash] = count
  757.       return `tocbar-${resultHash}`
  758.     },
  759.     /**
  760.      * @method TocBar
  761.      */
  762.     toggle(shouldShow = !this.visible) {
  763.       const HIDDEN_CLASS = 'toc-bar--collapsed'
  764.       const LOGO_HIDDEN_CLASS = 'toc-logo--collapsed'
  765.       if (shouldShow) {
  766.         this.element.classList.remove(HIDDEN_CLASS)
  767.         this.logoSvg && this.logoSvg.classList.remove(LOGO_HIDDEN_CLASS)
  768.       } else {
  769.         this.element.classList.add(HIDDEN_CLASS)
  770.         this.logoSvg && this.logoSvg.classList.add(LOGO_HIDDEN_CLASS)
  771.  
  772.         const right = parseInt(this.element.style.right)
  773.         if (right && right < 0) {
  774.           this.element.style.right = "0px"
  775.           const cachedPosition = POSITION_STORAGE.cache
  776.           if (!isEmpty(cachedPosition)) {
  777.             POSITION_STORAGE.set(null, {...cachedPosition, right: 0 })
  778.           }
  779.         }
  780.       }
  781.       this.visible = shouldShow
  782.     },
  783.     /**
  784.      * Toggle light/dark scheme
  785.      * @method TocBar
  786.      */
  787.     toggleScheme(isDark) {
  788.       const isDarkMode = typeof isDark === 'undefined' ? !this.isDarkMode: isDark
  789.       this.element.setAttribute('colorscheme', isDarkMode ? 'dark': 'light')
  790.       console.log('[toc-bar] toggle scheme', isDarkMode)
  791.       this.isDarkMode = isDarkMode
  792.  
  793.       GM_setValue(DARKMODE_KEY, isDarkMode)
  794.       this.refreshStyle()
  795.     },
  796.     refreshStyle() {
  797.       const themeColor = guessThemeColor()
  798.       if (themeColor && !this.isDarkMode) {
  799.         this.element.style.setProperty('--toc-bar-active-color', themeColor);
  800.       } else if (this.isDarkMode) {
  801.         this.element.style.setProperty('--toc-bar-active-color', TOC_BAR_DEFAULT_ACTIVE_COLOR);
  802.       }
  803.     },
  804.   }
  805.   // ----------------end TocBar -------------------
  806.  
  807.   function main() {
  808.     const options = getPageTocOptions()
  809.  
  810.     if (options) {
  811.       const tocBar = new TocBar(options)
  812.       tocBar.initTocbot(options)
  813.       tocBar.refreshStyle()
  814.     }
  815.   }
  816.  
  817.   main()
  818. })()