A floating table of content widget
// ==UserScript==
// @name Toc Bar, auto-generating table of content
// @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
// @author hikerpig
// @namespace https://github.com/hikerpig
// @license MIT
// @description A floating table of content widget
// @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
// @version 1.9.6
// @match *://www.jianshu.com/p/*
// @match *://cdn2.jianshu.io/p/*
// @match *://zhuanlan.zhihu.com/p/*
// @match *://www.zhihu.com/pub/reader/*
// @match *://mp.weixin.qq.com/s*
// @match *://cnodejs.org/topic/*
// @match *://*zcfy.cc/article/*
// @match *://juejin.cn/post/*
// @match *://juejin.cn/book/*
// @match *://dev.to/*/*
// @exclude *://dev.to/settings/*
// @match *://web.dev/*
// @match *://medium.com/*
// @exclude *://medium.com/media/*
// @match *://itnext.io/*
// @match *://python-patterns.guide/*
// @match *://www.mysqltutorial.org/*
// @match *://en.wikipedia.org/*
// @match *://vuejs.org/*
// @match *://docs.python.org/*
// @match *://packaging.python.org/*
// @match *://*.readthedocs.io/*
// @match *://docs.djangoproject.com/*
// @match *://www.cnblogs.com/*
// @match *://bigsearcher.com/*
// @match *://ffmpeg.org/*
// @match *://www.ruanyifeng.com/*
// @match *://stackoverflow.blog/*
// @match *://realpython.com/*
// @match *://www.infoq.cn/article/*
// @match *://towardsdatascience.com/*
// @match *://hackernoon.com/*
// @match *://css-tricks.com/*
// @match *://www.smashingmagazine.com/*/*
// @match *://distill.pub/*
// @match *://github.com/*/*
// @match *://github.com/*/issues/*
// @match *://developer.mozilla.org/*/docs/*
// @match *://learning.oreilly.com/library/view/*
// @match *://developer.chrome.com/extensions/*
// @match *://app.getpocket.com/read/*
// @match *://indepth.dev/posts/*
// @match *://gitlab.com/*
// @run-at document-idle
// @grant GM_getResourceText
// @grant GM_addStyle
// @grant GM_setValue
// @grant GM_getValue
// @require https://cdnjs.cloudflare.com/ajax/libs/tocbot/4.18.2/tocbot.min.js
// @icon https://raw.githubusercontent.com/hikerpig/toc-bar-userscript/master/toc-logo.svg
// @homepageURL https://github.com/hikerpig/toc-bar-userscript
// ==/UserScript==
(function () {
/**
* @typedef {Object} SiteSetting
* @property {string} contentSelector
* @property {string} siteName
* @property {Object} style
* @property {Number} scrollSmoothOffset
* @property {Number} initialTop
* @property {Number} headingsOffset
* @property {() => Boolean} shouldShow
* @property {(ele) => HTMLElement} findHeaderId
* @property {(e) => void} onClick
* @property {(tocBar: TocBar) => void} onInit
*/
/** @type {{[key: string]: Partial<SiteSetting>}} */
const SITE_SETTINGS = {
jianshu: {
contentSelector: '.ouvJEz',
style: {
top: '55px',
color: '#ea6f5a',
},
},
'zhuanlan.zhihu.com': {
contentSelector: 'article',
scrollSmoothOffset: -52,
shouldShow() {
return location.pathname.startsWith('/p/')
},
},
'www.zhihu.com': {
contentSelector: '.reader-chapter-content',
scrollSmoothOffset: -52,
},
zcfy: {
contentSelector: '.markdown-body',
},
qq: {
contentSelector: '.rich_media_content',
},
'juejin.cn': function() {
let contentSelector = '.article' // post
if (/\/book\//.test(location.pathname)) {
contentSelector = '.book-body'
}
return {
contentSelector,
}
},
'dev.to': {
contentSelector: 'article',
scrollSmoothOffset: -56,
shouldShow() {
return ['/search', '/top/'].every(s => !location.pathname.startsWith(s))
},
},
'medium.com': {
contentSelector: 'article'
},
'docs.djangoproject.com': {
contentSelector: '#docs-content'
},
'hackernoon.com': {
contentSelector: 'main',
scrollSmoothOffset: -80,
},
'towardsdatascience.com': {
contentSelector: 'article'
},
'css-tricks.com': {
contentSelector: 'main'
},
'distill.pub': {
contentSelector: 'body'
},
'smashingmagazine': {
contentSelector: 'article'
},
'web.dev': {
contentSelector: '#content'
},
'python-patterns.guide': {
contentSelector: '.section',
},
'www.mysqltutorial.org': {
contentSelector: 'article',
},
'github.com': function () {
const README_SEL = '.entry-content'
const WIKI_CONTENT_SEL = '#wiki-body'
const ISSUE_CONTENT_SEL = '.comment .comment-body'
const matchedSel = [README_SEL, ISSUE_CONTENT_SEL, WIKI_CONTENT_SEL].find((sel) => {
const c = document.querySelector(sel)
if (c) {
return true
}
})
if (!matchedSel) {
return {
contentSelect: false,
}
}
const isIssueDetail = /\/issues\//.test(location.pathname)
const ISSUE_DETAIL_HEADING_OFFSET = 60
/** Ugly hack for github issues */
const onClick = isIssueDetail ? function (e) {
const href = e.target.getAttribute('href')
const header = document.body.querySelector(href)
if (header) {
const rect = header.getBoundingClientRect()
const currentWindowScrollTop = document.documentElement.scrollTop
const scrollY = rect.y + currentWindowScrollTop - ISSUE_DETAIL_HEADING_OFFSET
window.scrollTo(0, scrollY)
location.hash = href
e.preventDefault()
e.stopPropagation()
}
}: null
return {
siteName: 'github.com',
contentSelector: matchedSel,
hasInnerContainers: isIssueDetail ? true: false,
scrollSmoothOffset: isIssueDetail ? -ISSUE_DETAIL_HEADING_OFFSET: 0,
headingsOffset: isIssueDetail ? ISSUE_DETAIL_HEADING_OFFSET: 0,
initialTop: 500,
onClick,
findHeaderId(ele) {
let id
let anchor = ele.querySelector('.anchor')
if (anchor) id = anchor.getAttribute('id')
if (!anchor) {
anchor = ele.querySelector('a')
if (anchor) id = anchor.hash.replace(/^#/, '')
}
return id
},
}
},
'developer.mozilla.org': {
contentSelector: '#content',
onInit() {
setTimeout(() => {
tocbot.refresh()
}, 2000)
}
},
'learning.oreilly.com': {
contentSelector: '#sbo-rt-content'
},
'developer.chrome.com': {
contentSelector: 'article'
},
'www.infoq.cn': {
contentSelector: '.article-main',
scrollSmoothOffset: -107
},
'app.getpocket.com': {
contentSelector: '[role=main]',
},
'indepth.dev': {
contentSelector: '.content',
},
'gitlab.com': {
contentSelector: '.file-content',
scrollSmoothOffset: -40
},
'docs.celeryproject.org': {
contentSelector: '[role=main]',
},
'docs.python.org': {
contentSelector: '[role=main]',
},
'packaging.python.org': {
contentSelector: '[role=main]',
},
'readthedocs.io': {
contentSelector: '[role=main]',
},
'bigsearcher.com': {
contentSelector: 'body',
},
'ffmpeg.org': {
contentSelector: '#page-content-wrapper',
},
'www.ruanyifeng.com': {
contentSelector: 'article',
},
'realpython.com': {
contentSelector: '.main-content',
},
'en.wikipedia.org': {
contentSelector: '#content',
},
'www.cnblogs.com': {
contentSelector: '#main',
},
'stackoverflow.blog': {
contentSelector: 'article',
},
'vuejs.org': {
contentSelector: 'main > div',
},
}
function getSiteInfo() {
let siteName
if (SITE_SETTINGS[location.hostname]) {
siteName = location.hostname;
} else if (location.hostname.indexOf('readthedocs.io') > -1) {
siteName = 'readthedocs.io';
} else {
const match = location.href.match(
/([\d\w]+)\.(com|cn|net|org|im|io|cc|site|tv)/i
)
siteName = match ? match[1] : null
}
if (siteName && SITE_SETTINGS[siteName]) {
return {
siteName,
siteSetting: SITE_SETTINGS[siteName],
}
}
}
function getPageTocOptions() {
let siteInfo = getSiteInfo()
if (siteInfo) {
if (typeof siteInfo.siteSetting === 'function') {
return siteInfo.siteSetting()
}
let siteSetting = { ...siteInfo.siteSetting }
if (siteSetting.shouldShow && !siteSetting.shouldShow()) {
return
}
if (typeof siteSetting.contentSelector === 'function') {
const contentSelector = siteSetting.contentSelector()
if (!contentSelector) return
siteSetting = {...siteSetting, contentSelector}
}
if (typeof siteSetting.scrollSmoothOffset === 'function') {
siteSetting.scrollSmoothOffset = siteSetting.scrollSmoothOffset()
}
console.log('[toc-bar] found site info for', siteInfo.siteName)
return siteSetting
}
}
function guessThemeColor() {
const meta = document.head.querySelector('meta[name="theme-color"]')
if (meta) {
return meta.getAttribute('content')
}
}
/**
* @param {String} content
* @return {String}
*/
function doContentHash(content) {
const val = content.split('').reduce((prevHash, currVal) => (((prevHash << 5) - prevHash) + currVal.charCodeAt(0))|0, 0);
return val.toString(32)
}
const POSITION_STORAGE = {
cache: null,
checkCache() {
if (!POSITION_STORAGE.cache) {
POSITION_STORAGE.cache = GM_getValue('tocbar-positions', {})
}
},
get(k) {
k = k || location.host
POSITION_STORAGE.checkCache()
return POSITION_STORAGE.cache[k]
},
set(k, position) {
k = k || location.host
POSITION_STORAGE.checkCache()
POSITION_STORAGE.cache[k] = position
GM_setValue('tocbar-positions', POSITION_STORAGE.cache)
},
}
function isEmpty(input) {
if (input) {
return Object.keys(input).length === 0
}
return true
}
/** 宽度，也用于计算拖动时的最小 right */
const TOC_BAR_WIDTH = 340
const TOC_BAR_DEFAULT_ACTIVE_COLOR = '#54BC4B';
// ---------------- TocBar ----------------------
const TOC_BAR_STYLE = `
.toc-bar {
--toc-bar-active-color: ${TOC_BAR_DEFAULT_ACTIVE_COLOR};
--toc-bar-text-color: #333;
--toc-bar-background-color: #FEFEFE;
position: fixed;
z-index: 9000;
right: 5px;
top: 80px;
width: ${TOC_BAR_WIDTH}px;
font-size: 14px;
box-sizing: border-box;
padding: 0 10px 10px 0;
box-shadow: 0 1px 3px #DDD;
border-radius: 4px;
transition: width 0.2s ease;
color: var(--toc-bar-text-color);
background: var(--toc-bar-background-color);
user-select:none;
-moz-user-select:none;
-webkit-user-select: none;
-ms-user-select: none;
}
.toc-bar[colorscheme="dark"] {
--toc-bar-text-color: #fafafa;
--toc-bar-background-color: #333;
}
.toc-bar[colorscheme="dark"] svg {
fill: var(--toc-bar-text-color);
stroke: var(--toc-bar-text-color);
}
.toc-bar.toc-bar--collapsed {
width: 30px;
height: 30px;
padding: 0;
overflow: hidden;
}
.toc-bar--collapsed .toc {
display: none;
}
.toc-bar--collapsed .hidden-when-collapsed {
display: none;
}
.toc-bar__header {
font-weight: bold;
padding-bottom: 5px;
display: flex;
justify-content: space-between;
align-items: center;
cursor: move;
}
.toc-bar__refresh {
position: relative;
top: -2px;
}
.toc-bar__icon-btn {
height: 1em;
width: 1em;
cursor: pointer;
transition: transform 0.2s ease;
}
.toc-bar__icon-btn:hover {
opacity: 0.7;
}
.toc-bar__icon-btn svg {
max-width: 100%;
max-height: 100%;
vertical-align: top;
}
.toc-bar__actions {
align-items: center;
}
.toc-bar__actions .toc-bar__icon-btn {
margin-left: 1em;
}
.toc-bar__scheme {
transform: translateY(-1px) scale(1.1);
}
.toc-bar__header-left {
align-items: center;
}
.toc-bar__toggle {
cursor: pointer;
padding: 8px 8px;
box-sizing: content-box;
transition: transform 0.2s ease;
}
.toc-bar__title {
margin-left: 5px;
}
.toc-bar a.toc-link {
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
display: block;
line-height: 1.6;
}
.flex {
display: flex;
}
/* tocbot related */
.toc-bar__toc {
max-height: 80vh;
overflow-y: auto;
}
.toc-list-item > a:hover {
text-decoration: underline;
}
.toc-list {
padding-inline-start: 0;
}
.toc-bar__toc > .toc-list {
margin: 0;
overflow: hidden;
position: relative;
padding-left: 5px;
}
.toc-bar__toc>.toc-list li {
list-style: none;
padding-left: 8px;
position: static;
}
a.toc-link {
color: currentColor;
height: 100%;
}
.is-collapsible {
max-height: 1000px;
overflow: hidden;
transition: all 300ms ease-in-out;
}
.is-collapsed {
max-height: 0;
}
.is-position-fixed {
position: fixed !important;
top: 0;
}
.is-active-link {
font-weight: 700;
}
.toc-link::before {
background-color: var(--toc-bar-background-color);
content: ' ';
display: inline-block;
height: inherit;
left: 0;
margin-top: -1px;
position: absolute;
width: 2px;
}
.is-active-link::before {
background-color: var(--toc-bar-active-color);
}
.toc-list-item,
.toc-link {
font-size: 1em; /* reset font size */
}
@media print {
.toc-bar__no-print { display: none !important; }
}
/* end tocbot related */
`
const TOCBOT_CONTAINTER_CLASS = 'toc-bar__toc'
const DARKMODE_KEY = 'tocbar-darkmode'
/**
* @typedef {Object} TocBarOptions
* @property {String} [siteName]
* @property {Number} [initialTop]
*/
/**
* @class
* @param {TocBarOptions} options
*/
function TocBar(options={}) {
this.options = options
// inject style
GM_addStyle(TOC_BAR_STYLE)
this.element = document.createElement('div')
this.element.id = 'toc-bar'
this.element.classList.add('toc-bar', 'toc-bar__no-print')
document.body.appendChild(this.element)
/** @type {Boolean} */
this.visible = true
this.initHeader()
// create a container tocbot
const tocElement = document.createElement('div')
this.tocElement = tocElement
tocElement.classList.add(TOCBOT_CONTAINTER_CLASS)
this.element.appendChild(tocElement)
POSITION_STORAGE.checkCache()
const cachedPosition = POSITION_STORAGE.get(options.siteName)
if (!isEmpty(cachedPosition)) {
this.element.style.top = `${Math.max(0, cachedPosition.top)}px`
this.element.style.right = `${cachedPosition.right}px`
} else if (options.hasOwnProperty('initialTop')) {
this.element.style.top = `${options.initialTop}px`
}
if (GM_getValue('tocbar-hidden', false)) {
this.toggle(false)
}
const isDark = Boolean(window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches);
/** @type {Boolean} */
this.isDarkMode = isDark
if (GM_getValue(DARKMODE_KEY, false)) {
this.toggleScheme(true)
}
}
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>`
const TOC_ICON = `
<?xml version="1.0" encoding="utf-8"?>
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
viewBox="0 0 1024 1024" style="enable-background:new 0 0 1024 1024;" xml:space="preserve">
<g>
<g>
<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
v132.5h32V166.5h287.8v24.9H553.8v82.8h114.1H693h225.6V114.5L835.2,45.9z M806.2,93.2H134.2V67.2h672.1v26.1H806.2z"/>
<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
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 "/>
</g>
</g>
</svg>
`
const LIGHT_ICON = `
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- Generator: Adobe Illustrator 18.0.0, SVG Export Plug-In . SVG Version: 6.00 Build 0) -->
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<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"
viewBox="0 0 181.328 181.328" style="enable-background:new 0 0 181.328 181.328;" xml:space="preserve" style="transform: translateY(-1px);">
<g>
<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
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
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
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
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"/>
<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
C37.237,90.831,40.595,87.473,40.595,83.331z"/>
<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
C181.328,79.189,177.97,75.831,173.828,75.831z"/>
<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
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"/>
<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
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"/>
<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
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"
/>
<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
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
C127.532,49.391,129.452,50.123,131.371,50.123z"/>
<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
C98.164,136.758,94.806,133.4,90.664,133.4z"/>
</g>
</svg>
`
TocBar.prototype = {
/**
* @method TocBar
*/
initHeader() {
const header = document.createElement('div')
header.classList.add('toc-bar__header')
header.innerHTML = `
<div class="flex toc-bar__header-left">
<div class="toc-bar__toggle toc-bar__icon-btn" title="Toggle TOC Bar">
${TOC_ICON}
</div>
<div class="toc-bar__title hidden-when-collapsed">TOC Bar</div>
</div>
<div class="toc-bar__actions flex hidden-when-collapsed">
<div class="toc-bar__scheme toc-bar__icon-btn" title="Toggle Light/Dark Mode">
${LIGHT_ICON}
</div>
<div class="toc-bar__refresh toc-bar__icon-btn" title="Refresh TOC">
${REFRESH_ICON}
</div>
</div>
`
const toggleElement = header.querySelector('.toc-bar__toggle')
toggleElement.addEventListener('click', () => {
this.toggle()
GM_setValue('tocbar-hidden', !this.visible)
})
this.logoSvg = toggleElement.querySelector('svg')
const refreshElement = header.querySelector('.toc-bar__refresh')
refreshElement.addEventListener('click', () => {
try {
tocbot.refresh()
} catch (error) {
console.warn('error in tocbot.refresh', error)
}
})
const toggleSchemeElement = header.querySelector('.toc-bar__scheme')
toggleSchemeElement.addEventListener('click', () => {
this.toggleScheme()
})
// ---------------- header drag ----------------------
const dragState = {
startMouseX: 0,
startMouseY: 0,
startPositionX: 0,
startPositionY: 0,
startElementDisToRight: 0,
isDragging: false,
curRight: 0,
curTop: 0,
}
const onMouseMove = (e) => {
if (!dragState.isDragging) return
const deltaX = e.pageX - dragState.startMouseX
const deltaY = e.pageY - dragState.startMouseY
// 要换算为 right 数字
const newRight = Math.max(30 - TOC_BAR_WIDTH, dragState.startElementDisToRight - deltaX)
const newTop = Math.max(0, dragState.startPositionY + deltaY)
Object.assign(dragState, {
curTop: newTop,
curRight: newRight,
})
// console.table({ newRight, newTop})
this.element.style.right = `${newRight}px`
this.element.style.top = `${newTop}px`
}
const onMouseUp = () => {
Object.assign(dragState, {
isDragging: false,
})
document.body.removeEventListener('mousemove', onMouseMove)
document.body.removeEventListener('mouseup', onMouseUp)
POSITION_STORAGE.set(this.options.siteName, {
top: dragState.curTop,
right: dragState.curRight,
})
}
header.addEventListener('mousedown', (e) => {
if (e.target === toggleElement) return
const bbox = this.element.getBoundingClientRect()
Object.assign(dragState, {
isDragging: true,
startMouseX: e.pageX,
startMouseY: e.pageY,
startPositionX: bbox.x,
startPositionY: bbox.y,
startElementDisToRight: document.body.clientWidth - bbox.right,
})
document.body.addEventListener('mousemove', onMouseMove)
document.body.addEventListener('mouseup', onMouseUp)
})
// ----------------end header drag -------------------
this.element.appendChild(header)
},
/**
* @method TocBar
* @param {SiteSetting} options
*/
initTocbot(options) {
const me = this
/**
* records for existing ids to prevent id conflict (when there are headings of same content)
* @type {Object} {[key: string]: number}
**/
this._tocContentCountCache = {}
const tocbotOptions = Object.assign(
{},
{
tocSelector: `.${TOCBOT_CONTAINTER_CLASS}`,
scrollSmoothOffset: options.scrollSmoothOffset || 0,
headingObjectCallback(obj, ele) {
// if there is no id on the header element, add one that derived from hash of header title
// remove ¶ and # notation in headers text
obj.textContent = obj.textContent.replace(/¶|#/g, '');
if (!ele.id) {
let newId
if (options.findHeaderId) {
newId = options.findHeaderId(ele)
}
if (!newId) {
newId = me.generateHeaderId(obj, ele)
ele.setAttribute('id', newId)
}
if (newId) obj.id = newId
}
return obj
},
headingSelector: 'h1, h2, h3, h4, h5',
collapseDepth: 4,
},
options
)
// console.log('tocbotOptions', tocbotOptions);
try {
tocbot.init(tocbotOptions)
if (options.onInit) {
options.onInit(this)
}
} catch (error) {
console.warn('error in tocbot.init', error)
}
},
generateHeaderId(obj, ele) {
const hash = doContentHash(obj.textContent)
let count = 1
let resultHash = hash
if (this._tocContentCountCache[hash]) {
count = this._tocContentCountCache[hash] + 1
resultHash = doContentHash(`${hash}-${count}`)
}
this._tocContentCountCache[hash] = count
return `tocbar-${resultHash}`
},
/**
* @method TocBar
*/
toggle(shouldShow = !this.visible) {
const HIDDEN_CLASS = 'toc-bar--collapsed'
const LOGO_HIDDEN_CLASS = 'toc-logo--collapsed'
if (shouldShow) {
this.element.classList.remove(HIDDEN_CLASS)
this.logoSvg && this.logoSvg.classList.remove(LOGO_HIDDEN_CLASS)
} else {
this.element.classList.add(HIDDEN_CLASS)
this.logoSvg && this.logoSvg.classList.add(LOGO_HIDDEN_CLASS)
const right = parseInt(this.element.style.right)
if (right && right < 0) {
this.element.style.right = "0px"
const cachedPosition = POSITION_STORAGE.cache
if (!isEmpty(cachedPosition)) {
POSITION_STORAGE.set(null, {...cachedPosition, right: 0 })
}
}
}
this.visible = shouldShow
},
/**
* Toggle light/dark scheme
* @method TocBar
*/
toggleScheme(isDark) {
const isDarkMode = typeof isDark === 'undefined' ? !this.isDarkMode: isDark
this.element.setAttribute('colorscheme', isDarkMode ? 'dark': 'light')
console.log('[toc-bar] toggle scheme', isDarkMode)
this.isDarkMode = isDarkMode
GM_setValue(DARKMODE_KEY, isDarkMode)
this.refreshStyle()
},
refreshStyle() {
const themeColor = guessThemeColor()
if (themeColor && !this.isDarkMode) {
this.element.style.setProperty('--toc-bar-active-color', themeColor);
} else if (this.isDarkMode) {
this.element.style.setProperty('--toc-bar-active-color', TOC_BAR_DEFAULT_ACTIVE_COLOR);
}
},
}
// ----------------end TocBar -------------------
function main() {
const options = getPageTocOptions()
if (options) {
const tocBar = new TocBar(options)
tocBar.initTocbot(options)
tocBar.refreshStyle()
}
}
main()
})()