TOC can be generated for github、jianshu.com、cnblogs.com and other sites
// ==UserScript==
// @name bc-SmartTOC
// @name:zh-CN bc-SmartTOC
// @icon data:image/png;base64,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
// @namespace BC
// @version 0.1
// @description TOC can be generated for github、jianshu.com、cnblogs.com and other sites
// @description:zh-cn 可以为github、简书、cnblog等网站生成TOC
// @collaborator ChandlerVer5
// @match http*://coursehunters.online/t/*
// @match *://docs.spring.io/*
// @match *flaviocopes.com/*
// @match http*://*/book/*
// @match http*://www.freecodecamp.org/news/*
// @match http*://www.cnblogs.com/*/p/*
// @match http*://*/doc*/*
// @match http*://blog.csdn.net/*
// @match http*://www.jianshu.com/p/*
// @match http*://juejin.im/post/*
// @match http*://sspai.com/*
// @match http*://zhuanlan.zhihu.com/p/*
// @match http*://mp.weixin.qq.com/s*
// @match http*://cnodejs.org/topic/*
// @match http*://div.io/topic/*
// @match http*://www.runoob.com/*/*
// @match http*://www.code4app.com/article/*
// @match http*://www.zcfy.cc/article/*
// @match http*://github.com/*
// @match http*://gist.github.com/*
// @grant none
// ==/UserScript==
(function () {
'use strict';
function getRootWindow() {
let w = window
while (w !== w.parent) {
w = w.parent
}
return w
}
function getMaster(root) {
const iframes = [].slice.apply(root.document.getElementsByTagName('iframe'))
if (iframes.length === 0) {
return root
} else {
const largestChild = iframes
.map(f => ({
elem: f,
area: f.offsetWidth * f.offsetHeight
}))
.sort((a, b) => b.area - a.area)[0]
const html = root.document.documentElement
return largestChild.area / (html.offsetWidth * html.offsetHeight) > 0.5
? largestChild.elem.contentWindow
: root
}
}
function isMasterFrame(w) {
const root = getRootWindow()
const master = getMaster(root)
return w === master
}
var toastCSS = "#smarttoc-toast {\n all: initial;\n}\n\n#smarttoc-toast * {\n all: unset;\n}\n\n#smarttoc-toast {\n display: none;\n position: fixed;\n right: 0;\n top: 0;\n margin: 1em 2em;\n padding: 1em;\n z-index: 10000;\n box-sizing: border-box;\n background-color: #fff;\n border: 1px solid rgba(158, 158, 158, 0.22);\n color: gray;\n font-size: calc(12px + 0.15vw);\n font-family: \"Helvetica Neue\", Helvetica, Arial, sans-serif;\n font-weight: normal;\n -webkit-font-smoothing: subpixel-antialiased;\n font-smoothing: subpixel-antialiased;\n transition: opacity 200ms ease-out, transform 200ms ease-out;\n}\n\n#smarttoc-toast.enter {\n display: block;\n opacity: 0.01;\n transform: translate3d(0, -2em, 0);\n}\n\n#smarttoc-toast.enter.enter-active {\n display: block;\n opacity: 1;\n transform: translate3d(0, 0, 0);\n}\n\n#smarttoc-toast.leave {\n display: block;\n opacity: 1;\n transform: translate3d(0, 0, 0);\n}\n\n#smarttoc-toast.leave.leave-active {\n display: block;\n opacity: 0.01;\n transform: translate3d(0, -2em, 0);\n}\n";
function log() {
if (false) {}
}
function draw(elem, color = 'red') {
if (false && elem) {}
}
function assert(condition, error) {
if (!condition) {
throw new Error(error)
}
}
// '12px' => 12
const num = (size = '0') =>
typeof size === 'number' ? size : +size.replace(/px/, '')
// '12px' <= 12
const px = (size = 0) => num(size) + 'px'
function throttle(fn, delay) {
if (delay) {
let timer
return function timerThrottled(...args) {
clearTimeout(timer)
timer = setTimeout(function() {
fn(...args)
}, delay)
}
} else {
let request
return function rafThrottled(...args) {
cancelAnimationFrame(request)
request = requestAnimationFrame(function() {
fn(...args)
})
}
}
}
const safe = str => str.replace(/\s+/g, '-')
const unique = (function uniqueGenerator() {
let set = new Set()
return function unique(str) {
let id = 1
while (set.has(str)) {
str = str.replace(/(\$\d+)?$/, '') + '$' + id
id++
}
set.add(str)
return str
}
})()
const getScroll = (elem, direction = 'top') => {
if (elem === document.body) {
return direction === 'top'
? document.documentElement.scrollTop || document.body.scrollTop
: document.documentElement.scrollLeft || document.body.scrollLeft
} else {
return direction === 'top' ? elem.scrollTop : elem.scrollLeft
}
}
const setScroll = (elem, val, direction = 'top') => {
if (elem === document.body) {
if (direction === 'top') {
document.documentElement.scrollTop = val
window.scrollTo(window.scrollX, val)
} else {
document.documentElement.scrollLeft = val
window.scrollTo(val, window.scrollY)
}
} else {
if (direction === 'top') {
elem.scrollTop = val
} else {
elem.scrollLeft = val
}
}
}
const scrollTo = (function scrollToFactory() {
let request
const easeOutQuad = function(t, b, c, d) {
t /= d
return -c * t * (t - 2) + b
}
return function scrollTo({
targetElem,
scrollElem,
topMargin = 0,
maxDuration = 300,
easeFn,
callback
}) {
cancelAnimationFrame(request)
let rect = targetElem.getBoundingClientRect()
let endScrollTop =
rect.top -
(scrollElem === document.body
? 0
: scrollElem.getBoundingClientRect().top) +
getScroll(scrollElem) -
topMargin
let startScrollTop = getScroll(scrollElem)
let distance = endScrollTop - startScrollTop
let startTime
let ease = easeFn || easeOutQuad
let distanceRatio = Math.min(Math.abs(distance) / 10000, 1)
let duration = Math.max(
maxDuration * distanceRatio * (2 - distanceRatio),
10
)
if (!maxDuration) {
setScroll(scrollElem, endScrollTop)
if (callback) {
callback()
}
} else {
requestAnimationFrame(update)
}
function update(timestamp) {
if (!startTime) {
startTime = timestamp
}
let progress = (timestamp - startTime) / duration
if (progress < 1) {
setScroll(
scrollElem,
ease(timestamp - startTime, startScrollTop, distance, duration)
)
requestAnimationFrame(update)
} else {
setScroll(scrollElem, endScrollTop)
if (callback) {
callback()
}
}
}
}
})()
function toDash(str) {
return str.replace(/([A-Z])/g, (match, p1) => '-' + p1.toLowerCase())
}
function applyStyle(elem, style = {}, reset = false) {
if (reset) {
elem.style = ''
}
if (typeof style === 'string') {
elem.style = style
} else {
for (let prop in style) {
if (typeof style[prop] === 'number') {
elem.style.setProperty(toDash(prop), px(style[prop]), 'important')
} else {
elem.style.setProperty(toDash(prop), style[prop], 'important')
}
}
}
}
function translate3d(x = 0, y = 0, z = 0) {
return `translate3d(${Math.round(x)}px, ${Math.round(y)}px, ${Math.round(
z
)}px)` // 0.5px => blurred text
}
function setClass(elem, names, delay) {
if (delay === undefined) {
elem.classList = names
} else {
return setTimeout(() => {
elem.classList = names
}, delay)
}
}
const toast = (function toastFactory() {
let timers = []
return function toast(msg) {
let toast
insertCSS(toastCSS, 'smarttoc-toast__css')
if (document.getElementById('smarttoc-toast')) {
toast = document.getElementById('smarttoc-toast')
} else {
toast = document.createElement('DIV')
toast.id = 'smarttoc-toast'
document.body.appendChild(toast)
}
toast.textContent = msg
timers.forEach(clearTimeout)
toast.classList = ''
const set = setClass.bind(null, toast)
toast.classList = 'enter'
timers = [
set('enter enter-active', 0),
set('leave', 3000),
set('leave leave-active', 3000),
set('', 3000 + 200)
]
}
})()
const insertCSS = function(css, id) {
if (!document.getElementById(id)) {
let style = document.createElement('STYLE')
style.type = 'text/css'
style.id = id
style.textContent = css
document.head.appendChild(style)
return
}
}
var tocCSS = "/* EVERYTHING HERE WILL BE '!IMPORTANT' */\n\n/* reset */\n\n#smarttoc {\n all: initial;\n}\n\n#smarttoc * {\n all: unset;\n}\n\n/* container */\n\n#smarttoc {\n display: flex;\n flex-direction: column;\n align-items: stretch;\n position: fixed;\n max-width: 22em;\n min-width: 14em;\n max-height: calc(100vh - 100px);\n z-index: 10000;\n box-sizing: border-box;\n background-color: #fff;\n color: gray;\n font-size: calc(12px + 0.1vw);\n font-family: \"Helvetica Neue\", Helvetica, Arial, sans-serif;\n line-height: 1.5;\n font-weight: normal;\n border: 1px solid rgba(158, 158, 158, 0.22);\n -webkit-font-smoothing: subpixel-antialiased;\n font-smoothing: subpixel-antialiased;\n overflow: hidden;\n will-change: transform, max-width;\n transition: max-width 0.3s;\n contain: content;\n}\n\n#smarttoc:hover {\n max-width: 33vw;\n}\n\n#smarttoc.hidden {\n display: none;\n}\n\n#smarttoc .handle {\n -webkit-user-select: none;\n user-select: none;\n\n border-bottom: 1px solid rgba(158, 158, 158, 0.22);\n padding: 0.1em 0.7em;\n font-variant-caps: inherit;\n font-variant: small-caps;\n font-size: 0.9em;\n color: #bbb;\n cursor: pointer;\n text-align: center;\n opacity: 0;\n will-change: opacity;\n transition: opacity 0.3s;\n}\n\n#smarttoc:hover .handle {\n max-width: 33vw;\n opacity: 1;\n}\n\n#smarttoc .handle:hover,\n#smarttoc .handle:active {\n cursor: move;\n}\n\n#smarttoc .handle:active {\n background: #f9f9f9;\n}\n\n#smarttoc > ul {\n flex-grow: 1;\n padding: 0 1.3em 1.3em 1em;\n overflow-y: auto;\n}\n\n/* all headings */\n\n#smarttoc ul,\n#smarttoc li {\n list-style: none;\n display: block;\n}\n\n#smarttoc a {\n text-decoration: none;\n color: gray;\n display: block;\n line-height: 1.3;\n padding-top: 0.2em;\n padding-bottom: 0.2em;\n text-overflow: ellipsis;\n overflow-x: hidden;\n white-space: nowrap;\n}\n\n#smarttoc a:hover,\n#smarttoc a:active {\n border-left-color: rgba(86, 61, 124, 0.5);\n color: #563d7c;\n}\n\n#smarttoc li.active > a {\n border-left-color: #563d7c;\n color: #563d7c;\n}\n\n/* heading level: 1 */\n\n#smarttoc ul {\n line-height: 2;\n}\n\n#smarttoc ul a {\n font-size: 1em;\n padding-left: 1.3em;\n cursor:pointer \n}\n\n#smarttoc ul a:hover,\n#smarttoc ul a:active,\n#smarttoc ul li.active > a {\n border-left-width: 3px;\n border-left-style: solid;\n padding-left: calc(1.3em - 3px);\n}\n\n#smarttoc ul li.active > a {\n font-weight: 700;\n}\n\n/* heading level: 2 (hidden only when there are too many headings) */\n\n#smarttoc ul ul {\n line-height: 1.8;\n}\n\n#smarttoc.lengthy ul ul {\n display: none;\n}\n\n#smarttoc.lengthy ul li.active > ul {\n display: block;\n}\n\n#smarttoc ul ul a {\n font-size: 1em;\n padding-left: 2.7em;\n}\n\n#smarttoc ul ul a:hover,\n#smarttoc ul ul a:active,\n#smarttoc ul ul li.active > a {\n border-left-width: 2px;\n border-left-style: solid;\n padding-left: calc(2.7em - 2px);\n font-weight: normal;\n}\n\n/* heading level: 3 (hidden unless parent is active) */\n\n#smarttoc ul ul ul {\n line-height: 1.7;\n display: none;\n}\n\n#smarttoc ul ul li.active > ul {\n display: block;\n}\n\n#smarttoc ul ul ul a {\n font-size: 1em;\n padding-left: 4em;\n}\n\n#smarttoc ul ul ul a:hover,\n#smarttoc ul ul ul a:active,\n#smarttoc ul ul ul li.active > a {\n border-left-width: 1px;\n border-left-style: solid;\n padding-left: calc(4em - 1px);\n font-weight: normal;\n}\n";
const proto = {
subscribe(cb, emitOnSubscribe = true) {
if (emitOnSubscribe && this.value !== undefined) {
cb(this.value)
}
this.listeners.push(cb)
},
addDependent(dependent) {
this.dependents.push(dependent)
},
update(val) {
this.value = val
this.changed = true
this.dependents.forEach(dep => dep.update(val))
},
flush() {
if (this.changed) {
this.changed = false
this.listeners.forEach(l => l(this.value))
this.dependents.forEach(dep => dep.flush())
}
},
unique() {
let lastValue = this.value
let $unique = Stream(lastValue)
this.subscribe(val => {
if (val !== lastValue) {
$unique(val)
lastValue = val
}
})
return $unique
},
map(f) {
return Stream.combine(this, f)
},
filter(f) {
return this.map(output => (f(output) ? output : undefined))
},
throttle(delay) {
let $throttled = Stream(this.value)
const emit = throttle($throttled, delay)
this.subscribe(emit)
return $throttled
},
log(name) {
this.subscribe(e => console.log(`[${name}]: `, e))
return this
}
}
function Stream(init) {
let s = function(val) {
if (val === undefined) return s.value
s.update(val)
s.flush(val)
}
s.value = init
s.changed = false
s.listeners = []
s.dependents = []
return Object.assign(s, proto)
}
Stream.combine = function(...streams) {
const combiner = streams.pop()
let cached = streams.map(s => s())
const combined = Stream(combiner(...cached))
streams.forEach((s, i) => {
const dependent = {
update(val) {
cached[i] = val
combined.update(combiner(...cached))
},
flush() {
combined.flush()
}
}
s.addDependent(dependent)
})
return combined
}
Stream.interval = function(int) {
let $interval = Stream()
setInterval(() => $interval(null), int)
return $interval
}
Stream.fromEvent = function(elem, type) {
let $event = Stream()
elem.addEventListener(type, $event)
return $event
}
var commonjsGlobal = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};
function createCommonjsModule(fn, module) {
return module = { exports: {} }, fn(module, module.exports), module.exports;
}
var mithril = createCommonjsModule(function (module) {
;(function() {
"use strict"
function Vnode(tag, key, attrs0, children, text, dom) {
return {tag: tag, key: key, attrs: attrs0, children: children, text: text, dom: dom, domSize: undefined, state: undefined, _state: undefined, events: undefined, instance: undefined, skip: false}
}
Vnode.normalize = function(node) {
if (Array.isArray(node)) return Vnode("[", undefined, undefined, Vnode.normalizeChildren(node), undefined, undefined)
if (node != null && typeof node !== "object") return Vnode("#", undefined, undefined, node === false ? "" : node, undefined, undefined)
return node
}
Vnode.normalizeChildren = function normalizeChildren(children) {
for (var i = 0; i < children.length; i++) {
children[i] = Vnode.normalize(children[i])
}
return children
}
var selectorParser = /(?:(^|#|\.)([^#\.\[\]]+))|(\[(.+?)(?:\s*=\s*("|'|)((?:\\["'\]]|.)*?)\5)?\])/g
var selectorCache = {}
var hasOwn = {}.hasOwnProperty
function compileSelector(selector) {
var match, tag = "div", classes = [], attrs = {}
while (match = selectorParser.exec(selector)) {
var type = match[1], value = match[2]
if (type === "" && value !== "") tag = value
else if (type === "#") attrs.id = value
else if (type === ".") classes.push(value)
else if (match[3][0] === "[") {
var attrValue = match[6]
if (attrValue) attrValue = attrValue.replace(/\\(["'])/g, "$1").replace(/\\\\/g, "\\")
if (match[4] === "class") classes.push(attrValue)
else attrs[match[4]] = attrValue === "" ? attrValue : attrValue || true
}
}
if (classes.length > 0) attrs.className = classes.join(" ")
return selectorCache[selector] = {tag: tag, attrs: attrs}
}
function execSelector(state, attrs, children) {
var hasAttrs = false, childList, text
var className = attrs.className || attrs.class
for (var key in state.attrs) {
if (hasOwn.call(state.attrs, key)) {
attrs[key] = state.attrs[key]
}
}
if (className !== undefined) {
if (attrs.class !== undefined) {
attrs.class = undefined
attrs.className = className
}
if (state.attrs.className != null) {
attrs.className = state.attrs.className + " " + className
}
}
for (let key in attrs) {
if (hasOwn.call(attrs, key) && key !== "key") {
hasAttrs = true
break
}
}
if (Array.isArray(children) && children.length === 1 && children[0] != null && children[0].tag === "#") {
text = children[0].children
} else {
childList = children
}
return Vnode(state.tag, attrs.key, hasAttrs ? attrs : undefined, childList, text)
}
function hyperscript(selector) {
// Because sloppy mode sucks
var attrs = arguments[1], start = 2, children
if (selector == null || typeof selector !== "string" && typeof selector !== "function" && typeof selector.view !== "function") {
throw Error("The selector must be either a string or a component.");
}
if (typeof selector === "string") {
var cached = selectorCache[selector] || compileSelector(selector)
}
if (attrs == null) {
attrs = {}
} else if (typeof attrs !== "object" || attrs.tag != null || Array.isArray(attrs)) {
attrs = {}
start = 1
}
if (arguments.length === start + 1) {
children = arguments[start]
if (!Array.isArray(children)) children = [children]
} else {
children = []
while (start < arguments.length) children.push(arguments[start++])
}
var normalized = Vnode.normalizeChildren(children)
if (typeof selector === "string") {
return execSelector(cached, attrs, normalized)
} else {
return Vnode(selector, attrs.key, attrs, normalized)
}
}
hyperscript.trust = function(html) {
if (html == null) html = ""
return Vnode("<", undefined, undefined, html, undefined, undefined)
}
hyperscript.fragment = function(attrs1, children) {
return Vnode("[", attrs1.key, attrs1, Vnode.normalizeChildren(children), undefined, undefined)
}
var m = hyperscript
/** @constructor */
var PromisePolyfill = function(executor) {
if (!(this instanceof PromisePolyfill)) throw new Error("Promise must be called with `new`")
if (typeof executor !== "function") throw new TypeError("executor must be a function")
var self = this, resolvers = [], rejectors = [], resolveCurrent = handler(resolvers, true), rejectCurrent = handler(rejectors, false)
var instance = self._instance = {resolvers: resolvers, rejectors: rejectors}
var callAsync = typeof setImmediate === "function" ? setImmediate : setTimeout
function handler(list, shouldAbsorb) {
return function execute(value) {
var then
try {
if (shouldAbsorb && value != null && (typeof value === "object" || typeof value === "function") && typeof (then = value.then) === "function") {
if (value === self) throw new TypeError("Promise can't be resolved w/ itself")
executeOnce(then.bind(value))
}
else {
callAsync(function() {
if (!shouldAbsorb && list.length === 0) console.error("Possible unhandled promise rejection:", value)
for (var i = 0; i < list.length; i++) list[i](value)
resolvers.length = 0, rejectors.length = 0
instance.state = shouldAbsorb
instance.retry = function() {execute(value)}
})
}
}
catch (e) {
rejectCurrent(e)
}
}
}
function executeOnce(then) {
var runs = 0
function run(fn) {
return function(value) {
if (runs++ > 0) return
fn(value)
}
}
var onerror = run(rejectCurrent)
try {then(run(resolveCurrent), onerror)} catch (e) {onerror(e)}
}
executeOnce(executor)
}
PromisePolyfill.prototype.then = function(onFulfilled, onRejection) {
var self = this, instance = self._instance
function handle(callback, list, next, state) {
list.push(function(value) {
if (typeof callback !== "function") next(value)
else try {resolveNext(callback(value))} catch (e) {if (rejectNext) rejectNext(e)}
})
if (typeof instance.retry === "function" && state === instance.state) instance.retry()
}
var resolveNext, rejectNext
var promise = new PromisePolyfill(function(resolve, reject) {resolveNext = resolve, rejectNext = reject})
handle(onFulfilled, instance.resolvers, resolveNext, true), handle(onRejection, instance.rejectors, rejectNext, false)
return promise
}
PromisePolyfill.prototype.catch = function(onRejection) {
return this.then(null, onRejection)
}
PromisePolyfill.resolve = function(value) {
if (value instanceof PromisePolyfill) return value
return new PromisePolyfill(function(resolve) {resolve(value)})
}
PromisePolyfill.reject = function(value) {
return new PromisePolyfill(function(resolve, reject) {reject(value)})
}
PromisePolyfill.all = function(list) {
return new PromisePolyfill(function(resolve, reject) {
var total = list.length, count = 0, values = []
if (list.length === 0) resolve([])
else for (var i = 0; i < list.length; i++) {
(function(i) {
function consume(value) {
count++
values[i] = value
if (count === total) resolve(values)
}
if (list[i] != null && (typeof list[i] === "object" || typeof list[i] === "function") && typeof list[i].then === "function") {
list[i].then(consume, reject)
}
else consume(list[i])
})(i)
}
})
}
PromisePolyfill.race = function(list) {
return new PromisePolyfill(function(resolve, reject) {
for (var i = 0; i < list.length; i++) {
list[i].then(resolve, reject)
}
})
}
if (typeof window !== "undefined") {
if (typeof window.Promise === "undefined") window.Promise = PromisePolyfill
let PromisePolyfill = window.Promise
} else if (typeof commonjsGlobal !== "undefined") {
if (typeof commonjsGlobal.Promise === "undefined") commonjsGlobal.Promise = PromisePolyfill
let PromisePolyfill = commonjsGlobal.Promise
} else {
}
var buildQueryString = function(object) {
if (Object.prototype.toString.call(object) !== "[object Object]") return ""
var args = []
for (var key0 in object) {
destructure(key0, object[key0])
}
return args.join("&")
function destructure(key0, value) {
if (Array.isArray(value)) {
for (var i = 0; i < value.length; i++) {
destructure(key0 + "[" + i + "]", value[i])
}
}
else if (Object.prototype.toString.call(value) === "[object Object]") {
for (let i in value) {
destructure(key0 + "[" + i + "]", value[i])
}
}
else args.push(encodeURIComponent(key0) + (value != null && value !== "" ? "=" + encodeURIComponent(value) : ""))
}
}
var FILE_PROTOCOL_REGEX = new RegExp("^file://", "i")
var _8 = function($window, Promise) {
var callbackCount = 0
var oncompletion
function setCompletionCallback(callback) {oncompletion = callback}
function finalizer() {
var count = 0
function complete() {if (--count === 0 && typeof oncompletion === "function") oncompletion()}
return function finalize(promise0) {
var then0 = promise0.then
promise0.then = function() {
count++
var next = then0.apply(promise0, arguments)
next.then(complete, function(e) {
complete()
if (count === 0) throw e
})
return finalize(next)
}
return promise0
}
}
function normalize(args, extra) {
if (typeof args === "string") {
var url = args
args = extra || {}
if (args.url == null) args.url = url
}
return args
}
function request(args, extra) {
var finalize = finalizer()
args = normalize(args, extra)
var promise0 = new Promise(function(resolve, reject) {
if (args.method == null) args.method = "GET"
args.method = args.method.toUpperCase()
var useBody = (args.method === "GET" || args.method === "TRACE") ? false : (typeof args.useBody === "boolean" ? args.useBody : true)
if (typeof args.serialize !== "function") args.serialize = typeof FormData !== "undefined" && args.data instanceof FormData ? function(value) {return value} : JSON.stringify
if (typeof args.deserialize !== "function") args.deserialize = deserialize
if (typeof args.extract !== "function") args.extract = extract
args.url = interpolate(args.url, args.data)
if (useBody) args.data = args.serialize(args.data)
else args.url = assemble(args.url, args.data)
var xhr = new $window.XMLHttpRequest(),
aborted = false,
_abort = xhr.abort
xhr.abort = function abort() {
aborted = true
_abort.call(xhr)
}
xhr.open(args.method, args.url, typeof args.async === "boolean" ? args.async : true, typeof args.user === "string" ? args.user : undefined, typeof args.password === "string" ? args.password : undefined)
if (args.serialize === JSON.stringify && useBody) {
xhr.setRequestHeader("Content-Type", "application/json; charset=utf-8")
}
if (args.deserialize === deserialize) {
xhr.setRequestHeader("Accept", "application/json, text/*")
}
if (args.withCredentials) xhr.withCredentials = args.withCredentials
for (var key in args.headers) if ({}.hasOwnProperty.call(args.headers, key)) {
xhr.setRequestHeader(key, args.headers[key])
}
if (typeof args.config === "function") xhr = args.config(xhr, args) || xhr
xhr.onreadystatechange = function() {
// Don't throw errors on xhr.abort().
if(aborted) return
if (xhr.readyState === 4) {
try {
var response = (args.extract !== extract) ? args.extract(xhr, args) : args.deserialize(args.extract(xhr, args))
if ((xhr.status >= 200 && xhr.status < 300) || xhr.status === 304 || FILE_PROTOCOL_REGEX.test(args.url)) {
resolve(cast(args.type, response))
}
else {
var error = new Error(xhr.responseText)
for (var key in response) error[key] = response[key]
reject(error)
}
}
catch (e) {
reject(e)
}
}
}
if (useBody && (args.data != null)) xhr.send(args.data)
else xhr.send()
})
return args.background === true ? promise0 : finalize(promise0)
}
function jsonp(args, extra) {
var finalize = finalizer()
args = normalize(args, extra)
var promise0 = new Promise(function(resolve, reject) {
var callbackName = args.callbackName || "_mithril_" + Math.round(Math.random() * 1e16) + "_" + callbackCount++
var script = $window.document.createElement("script")
$window[callbackName] = function(data) {
script.parentNode.removeChild(script)
resolve(cast(args.type, data))
delete $window[callbackName]
}
script.onerror = function() {
script.parentNode.removeChild(script)
reject(new Error("JSONP request failed"))
delete $window[callbackName]
}
if (args.data == null) args.data = {}
args.url = interpolate(args.url, args.data)
args.data[args.callbackKey || "callback"] = callbackName
script.src = assemble(args.url, args.data)
$window.document.documentElement.appendChild(script)
})
return args.background === true? promise0 : finalize(promise0)
}
function interpolate(url, data) {
if (data == null) return url
var tokens = url.match(/:[^\/]+/gi) || []
for (var i = 0; i < tokens.length; i++) {
var key = tokens[i].slice(1)
if (data[key] != null) {
url = url.replace(tokens[i], data[key])
}
}
return url
}
function assemble(url, data) {
var querystring = buildQueryString(data)
if (querystring !== "") {
var prefix = url.indexOf("?") < 0 ? "?" : "&"
url += prefix + querystring
}
return url
}
function deserialize(data) {
try {return data !== "" ? JSON.parse(data) : null}
catch (e) {throw new Error(data)}
}
function extract(xhr) {return xhr.responseText}
function cast(type0, data) {
if (typeof type0 === "function") {
if (Array.isArray(data)) {
for (var i = 0; i < data.length; i++) {
data[i] = new type0(data[i])
}
}
else return new type0(data)
}
return data
}
return {request: request, jsonp: jsonp, setCompletionCallback: setCompletionCallback}
}
var requestService = _8(window, PromisePolyfill)
var coreRenderer = function($window) {
var $doc = $window.document
var $emptyFragment = $doc.createDocumentFragment()
var nameSpace = {
svg: "http://www.w3.org/2000/svg",
math: "http://www.w3.org/1998/Math/MathML"
}
var onevent
function setEventCallback(callback) {return onevent = callback}
function getNameSpace(vnode) {
return vnode.attrs && vnode.attrs.xmlns || nameSpace[vnode.tag]
}
//create
function createNodes(parent, vnodes, start, end, hooks, nextSibling, ns) {
for (var i = start; i < end; i++) {
var vnode = vnodes[i]
if (vnode != null) {
createNode(parent, vnode, hooks, ns, nextSibling)
}
}
}
function createNode(parent, vnode, hooks, ns, nextSibling) {
var tag = vnode.tag
if (typeof tag === "string") {
vnode.state = {}
if (vnode.attrs != null) initLifecycle(vnode.attrs, vnode, hooks)
switch (tag) {
case "#": return createText(parent, vnode, nextSibling)
case "<": return createHTML(parent, vnode, nextSibling)
case "[": return createFragment(parent, vnode, hooks, ns, nextSibling)
default: return createElement(parent, vnode, hooks, ns, nextSibling)
}
}
else return createComponent(parent, vnode, hooks, ns, nextSibling)
}
function createText(parent, vnode, nextSibling) {
vnode.dom = $doc.createTextNode(vnode.children)
insertNode(parent, vnode.dom, nextSibling)
return vnode.dom
}
function createHTML(parent, vnode, nextSibling) {
var match1 = vnode.children.match(/^\s*?<(\w+)/im) || []
var parent1 = {caption: "table", thead: "table", tbody: "table", tfoot: "table", tr: "tbody", th: "tr", td: "tr", colgroup: "table", col: "colgroup"}[match1[1]] || "div"
var temp = $doc.createElement(parent1)
temp.innerHTML = vnode.children
vnode.dom = temp.firstChild
vnode.domSize = temp.childNodes.length
var fragment = $doc.createDocumentFragment()
var child
while (child = temp.firstChild) {
fragment.appendChild(child)
}
insertNode(parent, fragment, nextSibling)
return fragment
}
function createFragment(parent, vnode, hooks, ns, nextSibling) {
var fragment = $doc.createDocumentFragment()
if (vnode.children != null) {
var children = vnode.children
createNodes(fragment, children, 0, children.length, hooks, null, ns)
}
vnode.dom = fragment.firstChild
vnode.domSize = fragment.childNodes.length
insertNode(parent, fragment, nextSibling)
return fragment
}
function createElement(parent, vnode, hooks, ns, nextSibling) {
var tag = vnode.tag
var attrs2 = vnode.attrs
var is = attrs2 && attrs2.is
ns = getNameSpace(vnode) || ns
var element = ns ?
is ? $doc.createElementNS(ns, tag, {is: is}) : $doc.createElementNS(ns, tag) :
is ? $doc.createElement(tag, {is: is}) : $doc.createElement(tag)
vnode.dom = element
if (attrs2 != null) {
setAttrs(vnode, attrs2, ns)
}
insertNode(parent, element, nextSibling)
if (vnode.attrs != null && vnode.attrs.contenteditable != null) {
setContentEditable(vnode)
}
else {
if (vnode.text != null) {
if (vnode.text !== "") element.textContent = vnode.text
else vnode.children = [Vnode("#", undefined, undefined, vnode.text, undefined, undefined)]
}
if (vnode.children != null) {
var children = vnode.children
createNodes(element, children, 0, children.length, hooks, null, ns)
setLateAttrs(vnode)
}
}
return element
}
function initComponent(vnode, hooks) {
var sentinel
if (typeof vnode.tag.view === "function") {
vnode.state = Object.create(vnode.tag)
sentinel = vnode.state.view
if (sentinel.$$reentrantLock$$ != null) return $emptyFragment
sentinel.$$reentrantLock$$ = true
} else {
vnode.state = void 0
sentinel = vnode.tag
if (sentinel.$$reentrantLock$$ != null) return $emptyFragment
sentinel.$$reentrantLock$$ = true
vnode.state = (vnode.tag.prototype != null && typeof vnode.tag.prototype.view === "function") ? new vnode.tag(vnode) : vnode.tag(vnode)
}
vnode._state = vnode.state
if (vnode.attrs != null) initLifecycle(vnode.attrs, vnode, hooks)
initLifecycle(vnode._state, vnode, hooks)
vnode.instance = Vnode.normalize(vnode._state.view.call(vnode.state, vnode))
if (vnode.instance === vnode) throw Error("A view cannot return the vnode it received as argument")
sentinel.$$reentrantLock$$ = null
}
function createComponent(parent, vnode, hooks, ns, nextSibling) {
initComponent(vnode, hooks)
if (vnode.instance != null) {
var element = createNode(parent, vnode.instance, hooks, ns, nextSibling)
vnode.dom = vnode.instance.dom
vnode.domSize = vnode.dom != null ? vnode.instance.domSize : 0
insertNode(parent, element, nextSibling)
return element
}
else {
vnode.domSize = 0
return $emptyFragment
}
}
//update
function updateNodes(parent, old, vnodes, recycling, hooks, nextSibling, ns) {
if (old === vnodes || old == null && vnodes == null) return
else if (old == null) createNodes(parent, vnodes, 0, vnodes.length, hooks, nextSibling, ns)
else if (vnodes == null) removeNodes(old, 0, old.length, vnodes)
else {
if (old.length === vnodes.length) {
var isUnkeyed = false
for (var i = 0; i < vnodes.length; i++) {
if (vnodes[i] != null && old[i] != null) {
isUnkeyed = vnodes[i].key == null && old[i].key == null
break
}
}
if (isUnkeyed) {
for (let i = 0; i < old.length; i++) {
if (old[i] === vnodes[i]) continue
else if (old[i] == null && vnodes[i] != null) createNode(parent, vnodes[i], hooks, ns, getNextSibling(old, i + 1, nextSibling))
else if (vnodes[i] == null) removeNodes(old, i, i + 1, vnodes)
else updateNode(parent, old[i], vnodes[i], hooks, getNextSibling(old, i + 1, nextSibling), recycling, ns)
}
return
}
}
recycling = recycling || isRecyclable(old, vnodes)
if (recycling) {
var pool = old.pool
old = old.concat(old.pool)
}
var oldStart = 0, start = 0, oldEnd = old.length - 1, end = vnodes.length - 1, map
while (oldEnd >= oldStart && end >= start) {
var o = old[oldStart], v = vnodes[start]
if (o === v && !recycling) oldStart++, start++
else if (o == null) oldStart++
else if (v == null) start++
else if (o.key === v.key) {
var shouldRecycle = (pool != null && oldStart >= old.length - pool.length) || ((pool == null) && recycling)
oldStart++, start++
updateNode(parent, o, v, hooks, getNextSibling(old, oldStart, nextSibling), shouldRecycle, ns)
if (recycling && o.tag === v.tag) insertNode(parent, toFragment(o), nextSibling)
}
else {
let o = old[oldEnd]
if (o === v && !recycling) oldEnd--, start++
else if (o == null) oldEnd--
else if (v == null) start++
else if (o.key === v.key) {
let shouldRecycle = (pool != null && oldEnd >= old.length - pool.length) || ((pool == null) && recycling)
updateNode(parent, o, v, hooks, getNextSibling(old, oldEnd + 1, nextSibling), shouldRecycle, ns)
if (recycling || start < end) insertNode(parent, toFragment(o), getNextSibling(old, oldStart, nextSibling))
oldEnd--, start++
}
else break
}
}
while (oldEnd >= oldStart && end >= start) {
let o = old[oldEnd], v = vnodes[end]
if (o === v && !recycling) oldEnd--, end--
else if (o == null) oldEnd--
else if (v == null) end--
else if (o.key === v.key) {
let shouldRecycle = (pool != null && oldEnd >= old.length - pool.length) || ((pool == null) && recycling)
updateNode(parent, o, v, hooks, getNextSibling(old, oldEnd + 1, nextSibling), shouldRecycle, ns)
if (recycling && o.tag === v.tag) insertNode(parent, toFragment(o), nextSibling)
if (o.dom != null) nextSibling = o.dom
oldEnd--, end--
}
else {
if (!map) map = getKeyMap(old, oldEnd)
if (v != null) {
var oldIndex = map[v.key]
if (oldIndex != null) {
let movable = old[oldIndex]
let shouldRecycle = (pool != null && oldIndex >= old.length - pool.length) || ((pool == null) && recycling)
updateNode(parent, movable, v, hooks, getNextSibling(old, oldEnd + 1, nextSibling), recycling, ns)
insertNode(parent, toFragment(movable), nextSibling)
old[oldIndex].skip = true
if (movable.dom != null) nextSibling = movable.dom
}
else {
var dom = createNode(parent, v, hooks, ns, nextSibling)
nextSibling = dom
}
}
end--
}
if (end < start) break
}
createNodes(parent, vnodes, start, end + 1, hooks, nextSibling, ns)
removeNodes(old, oldStart, oldEnd + 1, vnodes)
}
}
function updateNode(parent, old, vnode, hooks, nextSibling, recycling, ns) {
var oldTag = old.tag, tag = vnode.tag
if (oldTag === tag) {
vnode.state = old.state
vnode._state = old._state
vnode.events = old.events
if (!recycling && shouldNotUpdate(vnode, old)) return
if (typeof oldTag === "string") {
if (vnode.attrs != null) {
if (recycling) {
vnode.state = {}
initLifecycle(vnode.attrs, vnode, hooks)
}
else updateLifecycle(vnode.attrs, vnode, hooks)
}
switch (oldTag) {
case "#": updateText(old, vnode); break
case "<": updateHTML(parent, old, vnode, nextSibling); break
case "[": updateFragment(parent, old, vnode, recycling, hooks, nextSibling, ns); break
default: updateElement(old, vnode, recycling, hooks, ns)
}
}
else updateComponent(parent, old, vnode, hooks, nextSibling, recycling, ns)
}
else {
removeNode(old, null)
createNode(parent, vnode, hooks, ns, nextSibling)
}
}
function updateText(old, vnode) {
if (old.children.toString() !== vnode.children.toString()) {
old.dom.nodeValue = vnode.children
}
vnode.dom = old.dom
}
function updateHTML(parent, old, vnode, nextSibling) {
if (old.children !== vnode.children) {
toFragment(old)
createHTML(parent, vnode, nextSibling)
}
else vnode.dom = old.dom, vnode.domSize = old.domSize
}
function updateFragment(parent, old, vnode, recycling, hooks, nextSibling, ns) {
updateNodes(parent, old.children, vnode.children, recycling, hooks, nextSibling, ns)
var domSize = 0, children = vnode.children
vnode.dom = null
if (children != null) {
for (var i = 0; i < children.length; i++) {
var child = children[i]
if (child != null && child.dom != null) {
if (vnode.dom == null) vnode.dom = child.dom
domSize += child.domSize || 1
}
}
if (domSize !== 1) vnode.domSize = domSize
}
}
function updateElement(old, vnode, recycling, hooks, ns) {
var element = vnode.dom = old.dom
ns = getNameSpace(vnode) || ns
if (vnode.tag === "textarea") {
if (vnode.attrs == null) vnode.attrs = {}
if (vnode.text != null) {
vnode.attrs.value = vnode.text //FIXME handle0 multiple children
vnode.text = undefined
}
}
updateAttrs(vnode, old.attrs, vnode.attrs, ns)
if (vnode.attrs != null && vnode.attrs.contenteditable != null) {
setContentEditable(vnode)
}
else if (old.text != null && vnode.text != null && vnode.text !== "") {
if (old.text.toString() !== vnode.text.toString()) old.dom.firstChild.nodeValue = vnode.text
}
else {
if (old.text != null) old.children = [Vnode("#", undefined, undefined, old.text, undefined, old.dom.firstChild)]
if (vnode.text != null) vnode.children = [Vnode("#", undefined, undefined, vnode.text, undefined, undefined)]
updateNodes(element, old.children, vnode.children, recycling, hooks, null, ns)
}
}
function updateComponent(parent, old, vnode, hooks, nextSibling, recycling, ns) {
if (recycling) {
initComponent(vnode, hooks)
} else {
vnode.instance = Vnode.normalize(vnode._state.view.call(vnode.state, vnode))
if (vnode.instance === vnode) throw Error("A view cannot return the vnode it received as argument")
if (vnode.attrs != null) updateLifecycle(vnode.attrs, vnode, hooks)
updateLifecycle(vnode._state, vnode, hooks)
}
if (vnode.instance != null) {
if (old.instance == null) createNode(parent, vnode.instance, hooks, ns, nextSibling)
else updateNode(parent, old.instance, vnode.instance, hooks, nextSibling, recycling, ns)
vnode.dom = vnode.instance.dom
vnode.domSize = vnode.instance.domSize
}
else if (old.instance != null) {
removeNode(old.instance, null)
vnode.dom = undefined
vnode.domSize = 0
}
else {
vnode.dom = old.dom
vnode.domSize = old.domSize
}
}
function isRecyclable(old, vnodes) {
if (old.pool != null && Math.abs(old.pool.length - vnodes.length) <= Math.abs(old.length - vnodes.length)) {
var oldChildrenLength = old[0] && old[0].children && old[0].children.length || 0
var poolChildrenLength = old.pool[0] && old.pool[0].children && old.pool[0].children.length || 0
var vnodesChildrenLength = vnodes[0] && vnodes[0].children && vnodes[0].children.length || 0
if (Math.abs(poolChildrenLength - vnodesChildrenLength) <= Math.abs(oldChildrenLength - vnodesChildrenLength)) {
return true
}
}
return false
}
function getKeyMap(vnodes, end) {
var map = {}, i = 0
for (let i = 0; i < end; i++) {
let vnode = vnodes[i]
if (vnode != null) {
let key2 = vnode.key
if (key2 != null) map[key2] = i
}
}
return map
}
function toFragment(vnode) {
var count0 = vnode.domSize
if (count0 != null || vnode.dom == null) {
var fragment = $doc.createDocumentFragment()
if (count0 > 0) {
var dom = vnode.dom
while (--count0) fragment.appendChild(dom.nextSibling)
fragment.insertBefore(dom, fragment.firstChild)
}
return fragment
}
else return vnode.dom
}
function getNextSibling(vnodes, i, nextSibling) {
for (; i < vnodes.length; i++) {
if (vnodes[i] != null && vnodes[i].dom != null) return vnodes[i].dom
}
return nextSibling
}
function insertNode(parent, dom, nextSibling) {
if (nextSibling && nextSibling.parentNode) parent.insertBefore(dom, nextSibling)
else parent.appendChild(dom)
}
function setContentEditable(vnode) {
var children = vnode.children
if (children != null && children.length === 1 && children[0].tag === "<") {
var content = children[0].children
if (vnode.dom.innerHTML !== content) vnode.dom.innerHTML = content
}
else if (vnode.text != null || children != null && children.length !== 0) throw new Error("Child node of a contenteditable must be trusted")
}
//remove
function removeNodes(vnodes, start, end, context) {
for (var i = start; i < end; i++) {
var vnode = vnodes[i]
if (vnode != null) {
if (vnode.skip) vnode.skip = false
else removeNode(vnode, context)
}
}
}
function removeNode(vnode, context) {
var expected = 1, called = 0
if (vnode.attrs && typeof vnode.attrs.onbeforeremove === "function") {
var result = vnode.attrs.onbeforeremove.call(vnode.state, vnode)
if (result != null && typeof result.then === "function") {
expected++
result.then(continuation, continuation)
}
}
if (typeof vnode.tag !== "string" && typeof vnode._state.onbeforeremove === "function") {
let result = vnode._state.onbeforeremove.call(vnode.state, vnode)
if (result != null && typeof result.then === "function") {
expected++
result.then(continuation, continuation)
}
}
continuation()
function continuation() {
if (++called === expected) {
onremove(vnode)
if (vnode.dom) {
var count0 = vnode.domSize || 1
if (count0 > 1) {
var dom = vnode.dom
while (--count0) {
removeNodeFromDOM(dom.nextSibling)
}
}
removeNodeFromDOM(vnode.dom)
if (context != null && vnode.domSize == null && !hasIntegrationMethods(vnode.attrs) && typeof vnode.tag === "string") { //TODO test custom elements
if (!context.pool) context.pool = [vnode]
else context.pool.push(vnode)
}
}
}
}
}
function removeNodeFromDOM(node) {
var parent = node.parentNode
if (parent != null) parent.removeChild(node)
}
function onremove(vnode) {
if (vnode.attrs && typeof vnode.attrs.onremove === "function") vnode.attrs.onremove.call(vnode.state, vnode)
if (typeof vnode.tag !== "string" && typeof vnode._state.onremove === "function") vnode._state.onremove.call(vnode.state, vnode)
if (vnode.instance != null) onremove(vnode.instance)
else {
var children = vnode.children
if (Array.isArray(children)) {
for (var i = 0; i < children.length; i++) {
var child = children[i]
if (child != null) onremove(child)
}
}
}
}
//attrs2
function setAttrs(vnode, attrs2, ns) {
for (var key2 in attrs2) {
setAttr(vnode, key2, null, attrs2[key2], ns)
}
}
function setAttr(vnode, key2, old, value, ns) {
var element = vnode.dom
if (key2 === "key" || key2 === "is" || (old === value && !isFormAttribute(vnode, key2)) && typeof value !== "object" || typeof value === "undefined" || isLifecycleMethod(key2)) return
var nsLastIndex = key2.indexOf(":")
if (nsLastIndex > -1 && key2.substr(0, nsLastIndex) === "xlink") {
element.setAttributeNS("http://www.w3.org/1999/xlink", key2.slice(nsLastIndex + 1), value)
}
else if (key2[0] === "o" && key2[1] === "n" && typeof value === "function") updateEvent(vnode, key2, value)
else if (key2 === "style") updateStyle(element, old, value)
else if (key2 in element && !isAttribute(key2) && ns === undefined && !isCustomElement(vnode)) {
if (key2 === "value") {
var normalized0 = "" + value // eslint-disable-line no-implicit-coercion
//setting input[value] to same value by typing on focused element moves cursor to end in Chrome
if ((vnode.tag === "input" || vnode.tag === "textarea") && vnode.dom.value === normalized0 && vnode.dom === $doc.activeElement) return
//setting select[value] to same value while having select open blinks select dropdown in Chrome
if (vnode.tag === "select") {
if (value === null) {
if (vnode.dom.selectedIndex === -1 && vnode.dom === $doc.activeElement) return
} else {
if (old !== null && vnode.dom.value === normalized0 && vnode.dom === $doc.activeElement) return
}
}
//setting option[value] to same value while having select open blinks select dropdown in Chrome
if (vnode.tag === "option" && old != null && vnode.dom.value === normalized0) return
}
// If you assign an input type1 that is not supported by IE 11 with an assignment expression, an error0 will occur.
if (vnode.tag === "input" && key2 === "type") {
element.setAttribute(key2, value)
return
}
element[key2] = value
}
else {
if (typeof value === "boolean") {
if (value) element.setAttribute(key2, "")
else element.removeAttribute(key2)
}
else element.setAttribute(key2 === "className" ? "class" : key2, value)
}
}
function setLateAttrs(vnode) {
var attrs2 = vnode.attrs
if (vnode.tag === "select" && attrs2 != null) {
if ("value" in attrs2) setAttr(vnode, "value", null, attrs2.value, undefined)
if ("selectedIndex" in attrs2) setAttr(vnode, "selectedIndex", null, attrs2.selectedIndex, undefined)
}
}
function updateAttrs(vnode, old, attrs2, ns) {
if (attrs2 != null) {
for (let key2 in attrs2) {
setAttr(vnode, key2, old && old[key2], attrs2[key2], ns)
}
}
if (old != null) {
for (var key2 in old) {
if (attrs2 == null || !(key2 in attrs2)) {
if (key2 === "className") key2 = "class"
if (key2[0] === "o" && key2[1] === "n" && !isLifecycleMethod(key2)) updateEvent(vnode, key2, undefined)
else if (key2 !== "key") vnode.dom.removeAttribute(key2)
}
}
}
}
function isFormAttribute(vnode, attr) {
return attr === "value" || attr === "checked" || attr === "selectedIndex" || attr === "selected" && vnode.dom === $doc.activeElement
}
function isLifecycleMethod(attr) {
return attr === "oninit" || attr === "oncreate" || attr === "onupdate" || attr === "onremove" || attr === "onbeforeremove" || attr === "onbeforeupdate"
}
function isAttribute(attr) {
return attr === "href" || attr === "list" || attr === "form" || attr === "width" || attr === "height"// || attr === "type"
}
function isCustomElement(vnode){
return vnode.attrs.is || vnode.tag.indexOf("-") > -1
}
function hasIntegrationMethods(source) {
return source != null && (source.oncreate || source.onupdate || source.onbeforeremove || source.onremove)
}
//style
function updateStyle(element, old, style) {
if (old === style) element.style.cssText = "", old = null
if (style == null) element.style.cssText = ""
else if (typeof style === "string") element.style.cssText = style
else {
if (typeof old === "string") element.style.cssText = ""
for (var key2 in style) {
element.style[key2] = style[key2]
}
if (old != null && typeof old !== "string") {
for (var key3 in old) {
if (!(key3 in style)) element.style[key3] = ""
}
}
}
}
//event
function updateEvent(vnode, key2, value) {
var element = vnode.dom
var callback = typeof onevent !== "function" ? value : function(e) {
var result = value.call(element, e)
onevent.call(element, e)
return result
}
if (key2 in element) element[key2] = typeof value === "function" ? callback : null
else {
var eventName = key2.slice(2)
if (vnode.events === undefined) vnode.events = {}
if (vnode.events[key2] === callback) return
if (vnode.events[key2] != null) element.removeEventListener(eventName, vnode.events[key2], false)
if (typeof value === "function") {
vnode.events[key2] = callback
element.addEventListener(eventName, vnode.events[key2], false)
}
}
}
//lifecycle
function initLifecycle(source, vnode, hooks) {
if (typeof source.oninit === "function") source.oninit.call(vnode.state, vnode)
if (typeof source.oncreate === "function") hooks.push(source.oncreate.bind(vnode.state, vnode))
}
function updateLifecycle(source, vnode, hooks) {
if (typeof source.onupdate === "function") hooks.push(source.onupdate.bind(vnode.state, vnode))
}
function shouldNotUpdate(vnode, old) {
var forceVnodeUpdate, forceComponentUpdate
if (vnode.attrs != null && typeof vnode.attrs.onbeforeupdate === "function") forceVnodeUpdate = vnode.attrs.onbeforeupdate.call(vnode.state, vnode, old)
if (typeof vnode.tag !== "string" && typeof vnode._state.onbeforeupdate === "function") forceComponentUpdate = vnode._state.onbeforeupdate.call(vnode.state, vnode, old)
if (!(forceVnodeUpdate === undefined && forceComponentUpdate === undefined) && !forceVnodeUpdate && !forceComponentUpdate) {
vnode.dom = old.dom
vnode.domSize = old.domSize
vnode.instance = old.instance
return true
}
return false
}
function render(dom, vnodes) {
if (!dom) throw new Error("Ensure the DOM element being passed to m.route/m.mount/m.render is not undefined.")
var hooks = []
var active = $doc.activeElement
var namespace = dom.namespaceURI
// First time0 rendering into a node clears it out
if (dom.vnodes == null) dom.textContent = ""
if (!Array.isArray(vnodes)) vnodes = [vnodes]
updateNodes(dom, dom.vnodes, Vnode.normalizeChildren(vnodes), false, hooks, null, namespace === "http://www.w3.org/1999/xhtml" ? undefined : namespace)
dom.vnodes = vnodes
for (var i = 0; i < hooks.length; i++) hooks[i]()
if ($doc.activeElement !== active) active.focus()
}
return {render: render, setEventCallback: setEventCallback}
}
function throttle(callback) {
//60fps translates to 16.6ms, round it down since setTimeout requires int
var time = 16
var last = 0, pending = null
var timeout = typeof requestAnimationFrame === "function" ? requestAnimationFrame : setTimeout
return function() {
var now = Date.now()
if (last === 0 || now - last >= time) {
last = now
callback()
}
else if (pending === null) {
pending = timeout(function() {
pending = null
callback()
last = Date.now()
}, time - (now - last))
}
}
}
var _11 = function($window) {
var renderService = coreRenderer($window)
renderService.setEventCallback(function(e) {
if (e.redraw === false) e.redraw = undefined
else redraw()
})
var callbacks = []
function subscribe(key1, callback) {
unsubscribe(key1)
callbacks.push(key1, throttle(callback))
}
function unsubscribe(key1) {
var index = callbacks.indexOf(key1)
if (index > -1) callbacks.splice(index, 2)
}
function redraw() {
for (var i = 1; i < callbacks.length; i += 2) {
callbacks[i]()
}
}
return {subscribe: subscribe, unsubscribe: unsubscribe, redraw: redraw, render: renderService.render}
}
var redrawService = _11(window)
requestService.setCompletionCallback(redrawService.redraw)
var _16 = function(redrawService0) {
return function(root, component) {
if (component === null) {
redrawService0.render(root, [])
redrawService0.unsubscribe(root)
return
}
if (component.view == null && typeof component !== "function") throw new Error("m.mount(element, component) expects a component, not a vnode")
var run0 = function() {
redrawService0.render(root, Vnode(component))
}
redrawService0.subscribe(root, run0)
redrawService0.redraw()
}
}
m.mount = _16(redrawService)
var Promise = PromisePolyfill
var parseQueryString = function(string) {
if (string === "" || string == null) return {}
if (string.charAt(0) === "?") string = string.slice(1)
var entries = string.split("&"), data0 = {}, counters = {}
for (var i = 0; i < entries.length; i++) {
var entry = entries[i].split("=")
var key5 = decodeURIComponent(entry[0])
var value = entry.length === 2 ? decodeURIComponent(entry[1]) : ""
if (value === "true") value = true
else if (value === "false") value = false
var levels = key5.split(/\]\[?|\[/)
var cursor = data0
if (key5.indexOf("[") > -1) levels.pop()
for (var j = 0; j < levels.length; j++) {
var level = levels[j], nextLevel = levels[j + 1]
var isNumber = nextLevel == "" || !isNaN(parseInt(nextLevel, 10))
var isValue = j === levels.length - 1
if (level === "") {
var key6 = levels.slice(0, j).join()
if (counters[key6] == null) counters[key6] = 0
level = counters[key6]++
}
if (cursor[level] == null) {
cursor[level] = isValue ? value : isNumber ? [] : {}
}
cursor = cursor[level]
}
}
return data0
}
var coreRouter = function($window) {
var supportsPushState = typeof $window.history.pushState === "function"
var callAsync0 = typeof setImmediate === "function" ? setImmediate : setTimeout
function normalize1(fragment0) {
var data = $window.location[fragment0].replace(/(?:%[a-f89][a-f0-9])+/gim, decodeURIComponent)
if (fragment0 === "pathname" && data[0] !== "/") data = "/" + data
return data
}
var asyncId
function debounceAsync(callback0) {
return function() {
if (asyncId != null) return
asyncId = callAsync0(function() {
asyncId = null
callback0()
})
}
}
function parsePath(path, queryData, hashData) {
var queryIndex = path.indexOf("?")
var hashIndex = path.indexOf("#")
var pathEnd = queryIndex > -1 ? queryIndex : hashIndex > -1 ? hashIndex : path.length
if (queryIndex > -1) {
var queryEnd = hashIndex > -1 ? hashIndex : path.length
var queryParams = parseQueryString(path.slice(queryIndex + 1, queryEnd))
for (var key4 in queryParams) queryData[key4] = queryParams[key4]
}
if (hashIndex > -1) {
var hashParams = parseQueryString(path.slice(hashIndex + 1))
for (var key5 in hashParams) hashData[key5] = hashParams[key5]
}
return path.slice(0, pathEnd)
}
var router = {prefix: "#!"}
router.getPath = function() {
var type2 = router.prefix.charAt(0)
switch (type2) {
case "#": return normalize1("hash").slice(router.prefix.length)
case "?": return normalize1("search").slice(router.prefix.length) + normalize1("hash")
default: return normalize1("pathname").slice(router.prefix.length) + normalize1("search") + normalize1("hash")
}
}
router.setPath = function(path, data, options) {
var queryData = {}, hashData = {}
path = parsePath(path, queryData, hashData)
if (data != null) {
for (var key4 in data) queryData[key4] = data[key4]
path = path.replace(/:([^\/]+)/g, function(match2, token) {
delete queryData[token]
return data[token]
})
}
var query = buildQueryString(queryData)
if (query) path += "?" + query
var hash = buildQueryString(hashData)
if (hash) path += "#" + hash
if (supportsPushState) {
var state = options ? options.state : null
var title = options ? options.title : null
$window.onpopstate()
if (options && options.replace) $window.history.replaceState(state, title, router.prefix + path)
else $window.history.pushState(state, title, router.prefix + path)
}
else $window.location.href = router.prefix + path
}
router.defineRoutes = function(routes, resolve, reject) {
function resolveRoute() {
var path = router.getPath()
var params = {}
var pathname = parsePath(path, params, params)
var state = $window.history.state
if (state != null) {
for (var k in state) params[k] = state[k]
}
for (var route0 in routes) {
var matcher = new RegExp("^" + route0.replace(/:[^\/]+?\.{3}/g, "(.*?)").replace(/:[^\/]+/g, "([^\\/]+)") + "\/?$")
if (matcher.test(pathname)) {
pathname.replace(matcher, function() {
var keys = route0.match(/:[^\/]+/g) || []
var values = [].slice.call(arguments, 1, -2)
for (var i = 0; i < keys.length; i++) {
params[keys[i].replace(/:|\./g, "")] = decodeURIComponent(values[i])
}
resolve(routes[route0], params, path, route0)
})
return
}
}
reject(path, params)
}
if (supportsPushState) $window.onpopstate = debounceAsync(resolveRoute)
else if (router.prefix.charAt(0) === "#") $window.onhashchange = resolveRoute
resolveRoute()
}
return router
}
var _20 = function($window, redrawService0) {
var routeService = coreRouter($window)
var identity = function(v) {return v}
var render1, component, attrs3, currentPath, lastUpdate
var route = function(root, defaultRoute, routes) {
if (root == null) throw new Error("Ensure the DOM element that was passed to `m.route` is not undefined")
var run1 = function() {
if (render1 != null) redrawService0.render(root, render1(Vnode(component, attrs3.key, attrs3)))
}
var bail = function(path) {
if (path !== defaultRoute) routeService.setPath(defaultRoute, null, {replace: true})
else throw new Error("Could not resolve default route " + defaultRoute)
}
routeService.defineRoutes(routes, function(payload, params, path) {
var update = lastUpdate = function(routeResolver, comp) {
if (update !== lastUpdate) return
component = comp != null && (typeof comp.view === "function" || typeof comp === "function")? comp : "div"
attrs3 = params, currentPath = path, lastUpdate = null
render1 = (routeResolver.render || identity).bind(routeResolver)
run1()
}
if (payload.view || typeof payload === "function") update({}, payload)
else {
if (payload.onmatch) {
Promise.resolve(payload.onmatch(params, path)).then(function(resolved) {
update(payload, resolved)
}, bail)
}
else update(payload, "div")
}
}, bail)
redrawService0.subscribe(root, run1)
}
route.set = function(path, data, options) {
if (lastUpdate != null) {
options = options || {}
options.replace = true
}
lastUpdate = null
routeService.setPath(path, data, options)
}
route.get = function() {return currentPath}
route.prefix = function(prefix0) {routeService.prefix = prefix0}
route.link = function(vnode1) {
vnode1.dom.setAttribute("href", routeService.prefix + vnode1.attrs.href)
vnode1.dom.onclick = function(e) {
if (e.ctrlKey || e.metaKey || e.shiftKey || e.which === 2) return
e.preventDefault()
e.redraw = false
var href = this.getAttribute("href")
if (href.indexOf(routeService.prefix) === 0) href = href.slice(routeService.prefix.length)
route.set(href, undefined, undefined)
}
}
route.param = function(key3) {
if(typeof attrs3 !== "undefined" && typeof key3 !== "undefined") return attrs3[key3]
return attrs3
}
return route
}
m.route = _20(window, redrawService)
m.withAttr = function(attrName, callback1, context) {
return function(e) {
callback1.call(context || this, attrName in e.currentTarget ? e.currentTarget[attrName] : e.currentTarget.getAttribute(attrName))
}
}
var _28 = coreRenderer(window)
m.render = _28.render
m.redraw = redrawService.redraw
m.request = requestService.request
m.jsonp = requestService.jsonp
m.parseQueryString = parseQueryString
m.buildQueryString = buildQueryString
m.version = "1.1.3"
m.vnode = Vnode
if ('object' !== "undefined") module["exports"] = m
else {}
}());
});
const restrictScroll = function(e) {
const toc = e.currentTarget
const maxScroll = toc.scrollHeight - toc.offsetHeight
if (toc.scrollTop + e.deltaY < 0) {
toc.scrollTop = 0
e.preventDefault()
} else if (toc.scrollTop + e.deltaY > maxScroll) {
toc.scrollTop = maxScroll
e.preventDefault()
}
e.redraw = false
}
const TOC = function({ $headings, $activeHeading, onClickHeading }) {
// $activeHeading.subscribe(activeIndex => {})
const toTree = function(headings) {
let i = 0
let tree = { level: 0, children: [] }
let stack = [tree]
const top = arr => arr.slice(-1)[0]
while (i < headings.length) {
let { level, isActive } = headings[i]
if (level === stack.length) {
const node = {
heading: headings[i],
children: []
}
top(stack).children.push(node)
stack.push(node)
if (isActive) {
stack.forEach(node => {
if (node.heading) {
node.heading.isActive = true
}
})
}
i++
} else if (level < stack.length) {
stack.pop()
} else if (level > stack.length) {
const node = {
heading: null,
children: []
}
top(stack).children.push(node)
stack.push(node)
}
}
return tree
}
const UL = (children, { isRoot = false } = {}) =>
mithril(
'ul',
{ onwheel: isRoot && restrictScroll, onclick: isRoot && onClickHeading },
children.map(LI)
)
const LI = ({ heading, children }, index) =>
mithril(
'li',
{ class: heading && heading.isActive ? 'active' : '', key: index },
[
heading &&
mithril('a', { href: `#${heading.anchor}` }, heading.node.textContent),
children && children.length && UL(children)
].filter(Boolean)
)
return {
oncreate({ dom }) {
// scroll to heading if out of view
$activeHeading.subscribe(index => {
const target = [].slice.apply(dom.querySelectorAll('.active')).pop()
if (target) {
const targetRect = target.getBoundingClientRect()
const containerRect = dom.getBoundingClientRect()
const outOfView =
targetRect.top > containerRect.bottom ||
targetRect.bottom < containerRect.top
if (outOfView) {
scrollTo({
targetElem: target,
scrollElem: dom,
maxDuration: 0,
topMargin: dom.offsetHeight / 2 - target.offsetHeight / 2
})
}
}
})
Stream.combine($headings, $activeHeading, () => null).subscribe(_ =>
mithril.redraw()
)
},
view() {
$headings().forEach((h, i) => (h.isActive = i === $activeHeading()))
const tree = toTree($headings())
return UL(tree.children, { isRoot: true })
}
}
}
const stop = e => {
e.stopPropagation()
e.preventDefault()
}
const Handle = function({ $userOffset }) {
let [sClientX, sClientY] = [0, 0]
let [sOffsetX, sOffsetY] = [0, 0]
const onDrag = throttle(e => {
stop(e)
let [dX, dY] = [e.clientX - sClientX, e.clientY - sClientY]
$userOffset([sOffsetX + dX, sOffsetY + dY])
e.redraw = false
})
const onDragEnd = e => {
window.removeEventListener('mousemove', onDrag)
window.removeEventListener('mouseup', onDragEnd)
e.redraw = false
}
const onDragStart = e => {
if (e.button === 0) {
stop(e)
sClientX = e.clientX
sClientY = e.clientY
sOffsetX = $userOffset()[0]
sOffsetY = $userOffset()[1]
window.addEventListener('mousemove', onDrag)
window.addEventListener('mouseup', onDragEnd)
}
e.redraw = false
}
return {
view() {
return mithril(
'.handle',
{
onmousedown: onDragStart
},
'table of contents'
)
}
}
}
const ARTICLE_TOC_GAP = 150
const makeSticky = function(options) {
let {
ref,
scrollable,
popper,
direction,
gap,
$refChange,
$scroll,
$offset,
$topMargin
} = options
let $refRect = Stream.combine($refChange, () => {
let refRect = ref.getBoundingClientRect()
let refStyle = window.getComputedStyle(ref)
let scrollTop = getScroll(scrollable, 'top')
let scrollLeft = getScroll(scrollable, 'left')
let refFullRect = {
top: refRect.top - scrollTop,
right: refRect.right - scrollLeft,
bottom: refRect.bottom - scrollTop,
left: refRect.left - scrollLeft,
width: refRect.width,
height: refRect.height
}
if (refStyle['box-sizing'] === 'border-box') {
refFullRect.left += num(refStyle['padding-left'])
refFullRect.right -= num(refStyle['padding-right'])
refFullRect.width -=
num(refStyle['padding-left']) + num(refStyle['padding-right'])
}
return refFullRect
})
let popperMetric = popper.getBoundingClientRect()
const scrollableTop =
scrollable === document.body ? 0 : scrollable.getBoundingClientRect().top
return Stream.combine(
$refRect,
$scroll,
$offset,
$topMargin,
(ref, [scrollX, scrollY], [offsetX, offsetY], topMargin) => {
let x =
direction === 'right'
? ref.right + gap
: ref.left - gap - popperMetric.width
x = Math.min(Math.max(0, x), window.innerWidth - popperMetric.width) // restrict to visible area
let y = Math.max(scrollableTop + topMargin, ref.top - scrollY)
return {
position: 'fixed',
left: 0,
top: 0,
transform: translate3d(x + offsetX, y + offsetY)
}
}
)
}
const getOptimalContainerPos = function(article) {
const {
top,
left,
right,
bottom,
height,
width
} = article.getBoundingClientRect()
const depthOf = function(elem) {
let depth = 0
while (elem) {
elem = elem.parentElement
depth++
}
return depth
}
const depthOfPoint = function([x, y]) {
const elem = document.elementFromPoint(x, y)
return elem && depthOf(elem)
}
const gap = ARTICLE_TOC_GAP
const testWidth = 200
const testHeight = 400
const leftSlotTestPoints = [
left - gap - testWidth,
left - gap - testWidth / 2,
left - gap
]
.map(x => [top, top + testHeight / 2, top + testHeight].map(y => [x, y]))
.reduce((prev, cur) => prev.concat(cur), [])
const rightSlotTestPoints = [
right + gap,
right + gap + testWidth / 2,
right + gap + testWidth
]
.map(x => [top, top + testHeight / 2, top + testHeight].map(y => [x, y]))
.reduce((prev, cur) => prev.concat(cur), [])
const leftDepths = leftSlotTestPoints.map(depthOfPoint).filter(Boolean)
const rightDepths = rightSlotTestPoints.map(depthOfPoint).filter(Boolean)
const leftAvgDepth = leftDepths.length
? leftDepths.reduce((a, b) => a + b, 0) / leftDepths.length
: null
const rightAvgDepth = rightDepths.length
? rightDepths.reduce((a, b) => a + b, 0) / rightDepths.length
: null
if (!leftAvgDepth) return { direction: 'right' }
if (!rightAvgDepth) return { direction: 'left' }
const spaceDiff = document.documentElement.offsetWidth - right - left
const scoreDiff =
spaceDiff * 1 + (rightAvgDepth - leftAvgDepth) * 9 * -10 + 20 // I do like right better
return scoreDiff > 0 ? { direction: 'right' } : { direction: 'left' }
}
const Container = function({
article,
scrollable,
$headings,
theme,
$activeHeading,
$isShow,
$userOffset,
$relayout,
$scroll,
$topbarHeight,
onClickHeading
}) {
const handle = Handle({ $userOffset })
const toc = TOC({ $headings, $activeHeading, onClickHeading })
return {
oncreate({ dom }) {
const { direction } = getOptimalContainerPos(article)
this.$style = makeSticky({
ref: article,
scrollable: scrollable,
popper: dom,
direction: direction,
gap: ARTICLE_TOC_GAP,
$topMargin: $topbarHeight.map(h => (h || 0) + 50),
$refChange: $relayout,
$scroll: $scroll,
$offset: $userOffset
})
this.$style.subscribe(_ => mithril.redraw())
},
view() {
return mithril(
'#smarttoc',
{
class: [
theme || 'light',
$headings().filter(h => h.level <= 2).length > 50 && 'lengthy',
$isShow() ? '' : 'hidden'
]
.filter(Boolean)
.join(' '),
style: this.$style && this.$style()
},
[mithril(handle), mithril(toc)]
)
}
}
}
const Extender = function({ $headings, scrollable, $isShow, $relayout }) {
const $extender = Stream()
// toc: extend body height so we can scroll to the last heading
let extender = document.createElement('DIV')
extender.id = 'smarttoc-extender'
Stream.combine($isShow, $relayout, $headings, (isShow, _, headings) => {
setTimeout(() => {
// some delay to ensure page is stable ?
let lastHeading = headings.slice(-1)[0].node
let lastRect = lastHeading.getBoundingClientRect()
let extenderHeight = 0
if (scrollable === document.body) {
let heightBelowLastRect =
document.documentElement.scrollHeight -
(lastRect.bottom + document.documentElement.scrollTop) -
num(extender.style.height) // in case we are there already
extenderHeight = isShow
? Math.max(
window.innerHeight - lastRect.height - heightBelowLastRect,
0
)
: 0
} else {
let scrollRect = scrollable.getBoundingClientRect()
let heightBelowLastRect =
scrollRect.top +
scrollable.scrollHeight -
getScroll(scrollable) - // bottom of scrollable relative to viewport
lastRect.bottom -
num(extender.style.height) // in case we are there already
extenderHeight = isShow
? Math.max(
scrollRect.height - lastRect.height - heightBelowLastRect,
0
)
: 0
}
$extender({
height: extenderHeight
})
}, 300)
})
$extender.subscribe(style => applyStyle(extender, style))
return extender
}
const relayoutStream = function(article, $resize, $isShow) {
const readableStyle = function(article) {
let computed = window.getComputedStyle(article)
let fontSize = num(computed.fontSize)
let bestWidth = Math.min(Math.max(fontSize, 12), 16) * 66
if (computed['box-sizing'] === 'border-box') {
bestWidth +=
num(computed['padding-left']) + num(computed['padding-right'])
}
return Object.assign(
num(computed.marginLeft) || num(computed.marginRight)
? {}
: {
marginLeft: 'auto',
marginRight: 'auto'
},
num(computed.maxWidth)
? {}
: {
maxWidth: bestWidth
}
)
}
let oldStyle = article.style.cssText
let newStyle = readableStyle(article)
let $relayout = $isShow.map(isShow => {
if (isShow) {
applyStyle(article, newStyle)
return article
} else {
applyStyle(article, oldStyle)
}
})
return Stream.combine($relayout, $resize, () => null)
}
const addAnchors = function(headings) {
const anchoredHeadings = headings.map(function({ node, level, anchor }) {
if (!anchor) {
anchor =
node.id ||
[].slice
.apply(node.children)
.filter(elem => elem.tagName === 'A')
.map(a => {
let href = a.getAttribute('href') || ''
return href.startsWith('#') ? href.substr(1) : a.id
})
.filter(Boolean)[0]
if (!anchor) {
anchor = node.id = unique(safe(node.textContent))
} else {
anchor = unique(anchor)
}
}
return { node, level, anchor }
})
return anchoredHeadings
}
const getScrollParent = function(elem) {
const canScroll = el =>
['auto', 'scroll'].includes(window.getComputedStyle(el).overflowY) &&
el.clientHeight + 1 < el.scrollHeight
while (elem && elem !== document.body && !canScroll(elem)) {
elem = elem.parentElement
}
log('scrollable', elem)
draw(elem, 'purple')
return elem
}
const scrollStream = function(scrollable, $isShow) {
let $scroll = Stream([getScroll(scrollable, 'left'), getScroll(scrollable)])
let source = scrollable === document.body ? window : scrollable
Stream.fromEvent(source, 'scroll')
.filter(() => $isShow())
.throttle()
.subscribe(() => {
$scroll([getScroll(scrollable, 'left'), getScroll(scrollable)])
})
return $scroll
}
const activeHeadingStream = function(
$headings,
scrollable,
$scroll,
$relayout,
$topbarHeight
) {
const $headingScrollYs = Stream.combine(
$relayout,
$headings,
(_, headings) => {
const scrollableTop =
(scrollable === document.body
? 0
: scrollable.getBoundingClientRect().top) -
getScroll(scrollable, 'top')
return headings.map(
({ node }) => node.getBoundingClientRect().top - scrollableTop
)
}
)
let $curIndex = Stream.combine(
$headingScrollYs,
$scroll,
$topbarHeight,
function(headingScrollYs, [scrollX, scrollY], topbarHeight = 0) {
let i = 0
for (let len = headingScrollYs.length; i < len; i++) {
if (headingScrollYs[i] > scrollY + topbarHeight + 20) {
break
}
}
return Math.max(0, i - 1)
}
)
return $curIndex.unique()
}
const scrollToHeading = function(
{ node },
scrollElem,
onScrollEnd,
topMargin = 0
) {
scrollTo({
targetElem: node,
scrollElem: scrollElem,
topMargin: topMargin,
maxDuration: 300,
callback: onScrollEnd && onScrollEnd.bind(null, node)
})
}
const getTopBarHeight = function(topElem) {
const findFixedParent = function(elem) {
const isFixed = elem => {
let { position, zIndex } = window.getComputedStyle(elem)
return position === 'fixed' && zIndex
}
while (elem !== document.body && !isFixed(elem)) {
elem = elem.parentElement
}
return elem === document.body ? null : elem
}
let { left, right, top } = topElem.getBoundingClientRect()
let leftTopmost = document.elementFromPoint(left + 1, top + 1)
let rightTopmost = document.elementFromPoint(right - 1, top + 1)
if (
leftTopmost &&
rightTopmost &&
leftTopmost !== topElem &&
rightTopmost !== topElem
) {
let leftFixed = findFixedParent(leftTopmost)
let rightFixed = findFixedParent(rightTopmost)
if (leftFixed && leftFixed === rightFixed) {
return leftFixed.offsetHeight
} else {
return 0
}
} else {
return 0
}
}
const getTheme = function(article) {
let elem = article
try {
const parseColor = str =>
str.replace(/rgba?\(/, '').replace(/\).*/, '').split(/, ?/)
const getBgColor = elem =>
parseColor(window.getComputedStyle(elem)['background-color'])
const isTransparent = ([r, g, b, a]) => a === 0
const isLight = ([r, g, b, a]) => r + g + b > 255 / 2 * 3
while (elem && elem.parentElement) {
const color = getBgColor(elem)
if (isTransparent(color)) {
elem = elem.parentElement
} else {
return isLight(color) ? 'light' : 'dark'
}
}
return 'light'
} catch (e) {
return 'light'
}
}
const getRoot = function() {
let root = document.getElementById('smarttoc_wrapper')
if (!root) {
root = document.body.appendChild(document.createElement('DIV'))
root.id = 'smarttoc_wrapper'
}
return root
}
// 生成目录
function createTOC({
article,
$headings: $headings_,
userOffset = [0, 0]
}) {
const $headings = $headings_.map(addAnchors)
insertCSS(tocCSS, 'smarttoc__css')
const scrollable = getScrollParent(article)
const theme = getTheme(article)
log('theme', theme)
const $isShow = Stream(true)
const $topbarHeight = Stream()
const $resize = Stream.combine(
Stream.fromEvent(window, 'resize'),
Stream.fromEvent(document, 'readystatechange'),
Stream.fromEvent(document, 'load'),
Stream.fromEvent(document, 'DOMContentLoaded'),
() => null
)
.filter(() => $isShow())
.throttle()
const $scroll = scrollStream(scrollable, $isShow)
const $relayout = relayoutStream(article, $resize, $isShow)
const $activeHeading = activeHeadingStream(
$headings,
scrollable,
$scroll,
$relayout,
$topbarHeight
)
const $userOffset = Stream(userOffset)
/*
scrollable.appendChild(
Extender({ $headings, scrollable, $isShow, $relayout })
)
*/
const onScrollEnd = function(node) {
if ($topbarHeight() == null) {
setTimeout(() => {
$topbarHeight(getTopBarHeight(node))
log('topBarHeight', $topbarHeight())
if ($topbarHeight()) {
scrollToHeading({ node }, scrollable, null, $topbarHeight() + 10)
}
}, 300)
}
}
const onClickHeading = function(e) {
e.preventDefault()
e.stopPropagation()
const anchor = e.target.getAttribute('href').substr(1)
const heading = $headings().find(heading => heading.anchor === anchor)
scrollToHeading(
heading,
scrollable,
onScrollEnd,
($topbarHeight() || 0) + 10
)
}
mithril.mount(
getRoot(),
Container({
article,
scrollable,
$headings,
theme,
$activeHeading,
$isShow,
$userOffset,
$relayout,
$scroll,
$topbarHeight,
onClickHeading
})
)
// now show what we've found
if (article.getBoundingClientRect().top > window.innerHeight - 50) {
scrollToHeading(
$headings()[0],
scrollable,
onScrollEnd,
($topbarHeight() || 0) + 10
)
}
return {
isValid: () =>
document.body.contains(article) && article.contains($headings()[0].node),
isShow: () => $isShow(),
toggle: () => $isShow(!$isShow()),
next: () => {
if ($isShow()) {
let nextIdx = Math.min($headings().length - 1, $activeHeading() + 1)
scrollToHeading(
$headings()[nextIdx],
scrollable,
onScrollEnd,
($topbarHeight() || 0) + 10
)
}
},
prev: () => {
if ($isShow()) {
let prevIdx = Math.max(0, $activeHeading() - 1)
scrollToHeading(
$headings()[prevIdx],
scrollable,
onScrollEnd,
($topbarHeight() || 0) + 10
)
}
},
dispose: () => {
log('dispose')
$isShow(false)
mithril.render(getRoot(), mithril(''))
return { userOffset: $userOffset() }
}
}
}
const pathToTop = function(elem, maxLvl = -1) {
assert(elem, 'no element given')
const path = []
while (elem && maxLvl--) {
path.push(elem)
elem = elem.parentElement
}
return path
}
const isStrongAlsoHeading = function(rootElement = document) {
return false
// return rootElement.querySelectorAll('p > strong:only-child').length > 3
}
const extractArticle = function(rootElement = document) {
log('extracting article')
const scores = new Map()
function addScore(elem, inc) {
scores.set(elem, (scores.get(elem) || 0) + inc)
}
function updateScore(elem, weight) {
let path = pathToTop(elem, weight.length)
path.forEach((elem, distance) => addScore(elem, weight[distance]))
}
// weigh nodes by factor: "selector", "distance from this node"
const weights = {
h1: [0, 100, 60, 40, 30, 25, 22].map(s => s * 0.4),
h2: [0, 100, 60, 40, 30, 25, 22],
h3: [0, 100, 60, 40, 30, 25, 22].map(s => s * 0.5),
h4: [0, 100, 60, 40, 30, 25, 22].map(s => s * 0.5 * 0.5),
h5: [0, 100, 60, 40, 30, 25, 22].map(s => s * 0.5 * 0.5 * 0.5),
h6: [0, 100, 60, 40, 30, 25, 22].map(s => s * 0.5 * 0.5 * 0.5 * 0.5),
article: [500],
'.article': [500],
'.content': [101],
sidebar: [-500],
'.sidebar': [-500],
aside: [-500],
'.aside': [-500],
nav: [-500],
'.nav': [-500],
'.navigation': [-500],
'.toc': [-500],
'.table-of-contents': [-500]
}
const selectors = Object.keys(weights)
selectors
.map(selector => ({
selector: selector,
elems: [].slice.apply(rootElement.querySelectorAll(selector))
}))
.forEach(({ selector, elems }) =>
elems.forEach(elem => updateScore(elem, weights[selector]))
)
const sorted = [...scores].sort((a, b) => b[1] - a[1])
// reweigh top 5 nodes by factor: "take-lots-vertical-space", "contain-less-links", "too-narrow"
let candicates = sorted
.slice(0, 5)
.filter(Boolean)
.map(([elem, score]) => ({ elem, score }))
let isTooNarrow = e => e.scrollWidth < 400 // rule out sidebars
candicates.forEach(c => {
if (isTooNarrow(c.elem)) {
c.isNarrow = true
candicates.forEach(parent => {
if (parent.elem.contains(c.elem)) {
parent.score *= 0.7
}
})
}
})
candicates = candicates.filter(c => !c.isNarrow)
const reweighted = candicates
.map(({ elem, score }) => [
elem,
score *
Math.log(
elem.scrollHeight *
elem.scrollHeight /
(elem.querySelectorAll('a').length || 1)
),
elem.scrollHeight,
elem.querySelectorAll('a').length
])
.sort((a, b) => b[1] - a[1])
const article = reweighted.length ? reweighted[0][0] : null
return article
}
const extractHeadings = function(article) {
log('extracting heading')
// what to be considered as headings
const tags = ['H1', 'H2', 'H3', 'H4', 'H5', 'H6'].concat(
isStrongAlsoHeading(article) ? 'STRONG' : []
)
const tagWeight = tag =>
({ H1: 4, H2: 9, H3: 9, H4: 10, H5: 10, H6: 10, STRONG: 10 }[tag])
const isVisible = elem => elem.offsetHeight !== 0
const isGroupVisible = headings =>
headings.filter(isVisible).length >= headings.length * 0.5
const headingGroup = tags
.map(tag => [].slice.apply(article.getElementsByTagName(tag)))
.map((headings, i) => ({
elems: headings,
tag: tags[i],
score: headings.length * tagWeight(tags[i])
}))
.filter(heading => heading.score >= 10)
.filter(heading => isGroupVisible(heading.elems))
.slice(0, 3)
// use document sequence
const validTags = headingGroup.map(headings => headings.tag)
const acceptNode = node =>
validTags.includes(node.tagName) && isVisible(node)
? NodeFilter.FILTER_ACCEPT
: NodeFilter.FILTER_SKIP
const treeWalker = document.createTreeWalker(
article,
NodeFilter.SHOW_ELEMENT,
{ acceptNode }
)
const headings = []
while (treeWalker.nextNode()) {
let node = treeWalker.currentNode
headings.push({
node,
level: validTags.indexOf(node.tagName) + 1
})
}
if (false) {}
return headings
}
function extract() {
const article = extractArticle(document)
let $headings
if (article) {
$headings = Stream(extractHeadings(article))
const $articleChange = Stream(null)
const observer = new MutationObserver(_ => $articleChange(null))
observer.observe(article, { childList: true })
$articleChange.throttle(200).subscribe(_ => {
let headings = extractHeadings(article)
if (headings && headings.length) {
$headings(headings)
}
})
}
return [article, $headings]
}
if (isMasterFrame(window)) {
let toc
const generate = function(option = {}) {
let [article, $headings] = extract()
if (article && $headings && $headings().length) {
return createTOC(Object.assign({ article, $headings }, option))
} else {
toast('No article/headings are detected.')
return null
}
}
toc = generate()
setInterval(() => {
if (toc && !toc.isValid()) {
let lastState = toc.dispose()
toc = generate(lastState)
}
}, 3000)
/*chrome.runtime.onMessage.addListener(function(request, sender, sendResponse) {
try {
if (toc) {
toc[request]()
} else {
toc = generate()
}
} catch (e) {
console.error(e)
}
sendResponse(true)
})*/
}
}());