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document.addEventListener('DOMContentLoaded', function () {
let blogNameWidth, menusWidth, searchWidth, $nav
let mobileSidebarOpen = false
const adjustMenu = (init) => {
if (init) {
blogNameWidth = document.getElementById('site-name').offsetWidth
const $menusEle = document.querySelectorAll('#menus .menus_item')
menusWidth = 0
$menusEle.length && $menusEle.forEach(i => { menusWidth += i.offsetWidth })
const $searchEle = document.querySelector('#search-button')
searchWidth = $searchEle ? $searchEle.offsetWidth : 0
$nav = document.getElementById('nav')
}
let hideMenuIndex = ''
if (window.innerWidth < 768) hideMenuIndex = true
else hideMenuIndex = blogNameWidth + menusWidth + searchWidth > $nav.offsetWidth - 120
if (hideMenuIndex) {
$nav.classList.add('hide-menu')
} else {
$nav.classList.remove('hide-menu')
}
}
// 初始化header
const initAdjust = () => {
adjustMenu(true)
$nav.classList.add('show')
}
// sidebar menus
const sidebarFn = {
open: () => {
btf.sidebarPaddingR()
document.body.style.overflow = 'hidden'
btf.animateIn(document.getElementById('menu-mask'), 'to_show 0.5s')
document.getElementById('sidebar-menus').classList.add('open')
mobileSidebarOpen = true
},
close: () => {
const $body = document.body
$body.style.overflow = ''
$body.style.paddingRight = ''
btf.animateOut(document.getElementById('menu-mask'), 'to_hide 0.5s')
document.getElementById('sidebar-menus').classList.remove('open')
mobileSidebarOpen = false
}
}
/**
* 首頁top_img底下的箭頭
*/
const scrollDownInIndex = () => {
const $scrollDownEle = document.getElementById('scroll-down')
$scrollDownEle && $scrollDownEle.addEventListener('click', function () {
btf.scrollToDest(document.getElementById('content-inner').offsetTop, 300)
})
}
/**
* 代碼
* 只適用於Hexo默認的代碼渲染
*/
const addHighlightTool = function () {
const highLight = GLOBAL_CONFIG.highlight
if (!highLight) return
const isHighlightCopy = highLight.highlightCopy
const isHighlightLang = highLight.highlightLang
const isHighlightShrink = GLOBAL_CONFIG_SITE.isHighlightShrink
const highlightHeightLimit = highLight.highlightHeightLimit
const isShowTool = isHighlightCopy || isHighlightLang || isHighlightShrink !== undefined
const $figureHighlight = highLight.plugin === 'highlighjs' ? document.querySelectorAll('figure.highlight') : document.querySelectorAll('pre[class*="language-"]')
if (!((isShowTool || highlightHeightLimit) && $figureHighlight.length)) return
const isPrismjs = highLight.plugin === 'prismjs'
let highlightShrinkEle = ''
let highlightCopyEle = ''
const highlightShrinkClass = isHighlightShrink === true ? 'closed' : ''
if (isHighlightShrink !== undefined) {
highlightShrinkEle = `<i class="fas fa-angle-down expand ${highlightShrinkClass}"></i>`
}
if (isHighlightCopy) {
highlightCopyEle = '<div class="copy-notice"></div><i class="fas fa-paste copy-button"></i>'
}
const copy = (text, ctx) => {
if (document.queryCommandSupported && document.queryCommandSupported('copy')) {
document.execCommand('copy')
if (GLOBAL_CONFIG.Snackbar !== undefined) {
btf.snackbarShow(GLOBAL_CONFIG.copy.success)
} else {
const prevEle = ctx.previousElementSibling
prevEle.innerText = GLOBAL_CONFIG.copy.success
prevEle.style.opacity = 1
setTimeout(() => { prevEle.style.opacity = 0 }, 700)
}
} else {
if (GLOBAL_CONFIG.Snackbar !== undefined) {
btf.snackbarShow(GLOBAL_CONFIG.copy.noSupport)
} else {
ctx.previousElementSibling.innerText = GLOBAL_CONFIG.copy.noSupport
}
}
}
// click events
const highlightCopyFn = (ele) => {
const $buttonParent = ele.parentNode
$buttonParent.classList.add('copy-true')
const selection = window.getSelection()
const range = document.createRange()
if (isPrismjs) range.selectNodeContents($buttonParent.querySelectorAll('pre code')[0])
else range.selectNodeContents($buttonParent.querySelectorAll('table .code pre')[0])
selection.removeAllRanges()
selection.addRange(range)
const text = selection.toString()
copy(text, ele.lastChild)
selection.removeAllRanges()
$buttonParent.classList.remove('copy-true')
}
const highlightShrinkFn = (ele) => {
const $nextEle = [...ele.parentNode.children].slice(1)
ele.firstChild.classList.toggle('closed')
if (btf.isHidden($nextEle[$nextEle.length - 1])) {
$nextEle.forEach(e => { e.style.display = 'block' })
} else {
$nextEle.forEach(e => { e.style.display = 'none' })
}
}
const highlightToolsFn = function (e) {
const $target = e.target.classList
if ($target.contains('expand')) highlightShrinkFn(this)
else if ($target.contains('copy-button')) highlightCopyFn(this)
}
const expandCode = function () {
this.classList.toggle('expand-done')
}
function createEle (lang, item, service) {
const fragment = document.createDocumentFragment()
if (isShowTool) {
const hlTools = document.createElement('div')
hlTools.className = `highlight-tools ${highlightShrinkClass}`
hlTools.innerHTML = highlightShrinkEle + lang + highlightCopyEle
hlTools.addEventListener('click', highlightToolsFn)
fragment.appendChild(hlTools)
}
if (highlightHeightLimit && item.offsetHeight > highlightHeightLimit + 30) {
const ele = document.createElement('div')
ele.className = 'code-expand-btn'
ele.innerHTML = '<i class="fas fa-angle-double-down"></i>'
ele.addEventListener('click', expandCode)
fragment.appendChild(ele)
}
if (service === 'hl') {
item.insertBefore(fragment, item.firstChild)
} else {
item.parentNode.insertBefore(fragment, item)
}
}
if (isHighlightLang) {
if (isPrismjs) {
$figureHighlight.forEach(function (item) {
const langName = item.getAttribute('data-language') ? item.getAttribute('data-language') : 'Code'
const highlightLangEle = `<div class="code-lang">${langName}</div>`
btf.wrap(item, 'figure', { class: 'highlight' })
createEle(highlightLangEle, item)
})
} else {
$figureHighlight.forEach(function (item) {
let langName = item.getAttribute('class').split(' ')[1]
if (langName === 'plain' || langName === undefined) langName = 'Code'
const highlightLangEle = `<div class="code-lang">${langName}</div>`
createEle(highlightLangEle, item, 'hl')
})
}
} else {
if (isPrismjs) {
$figureHighlight.forEach(function (item) {
btf.wrap(item, 'figure', { class: 'highlight' })
createEle('', item)
})
} else {
$figureHighlight.forEach(function (item) {
createEle('', item, 'hl')
})
}
}
}
/**
* PhotoFigcaption
*/
function addPhotoFigcaption () {
document.querySelectorAll('#article-container img').forEach(function (item) {
const parentEle = item.parentNode
const altValue = item.title || item.alt
if (altValue && !parentEle.parentNode.classList.contains('justified-gallery')) {
const ele = document.createElement('div')
ele.className = 'img-alt is-center'
ele.textContent = altValue
parentEle.insertBefore(ele, item.nextSibling)
}
})
}
/**
* Lightbox
*/
const runLightbox = () => {
btf.loadLightbox(document.querySelectorAll('#article-container img:not(.no-lightbox)'))
}
/**
* justified-gallery 圖庫排版
*/
const runJustifiedGallery = function (ele) {
ele.forEach(item => {
const $imgList = item.querySelectorAll('img')
$imgList.forEach(i => {
const dataLazySrc = i.getAttribute('data-lazy-src')
if (dataLazySrc) i.src = dataLazySrc
btf.wrap(i, 'div', { class: 'fj-gallery-item' })
})
})
if (window.fjGallery) {
setTimeout(() => { btf.initJustifiedGallery(ele) }, 100)
return
}
const newEle = document.createElement('link')
newEle.rel = 'stylesheet'
newEle.href = GLOBAL_CONFIG.source.justifiedGallery.css
document.body.appendChild(newEle)
getScript(`${GLOBAL_CONFIG.source.justifiedGallery.js}`).then(() => { btf.initJustifiedGallery(ele) })
}
/**
* 滾動處理
*/
const scrollFn = function () {
const $rightside = document.getElementById('rightside')
const innerHeight = window.innerHeight + 56
// 當滾動條小于 56 的時候
if (document.body.scrollHeight <= innerHeight) {
$rightside.style.cssText = 'opacity: 1; transform: translateX(-58px)'
return
}
// find the scroll direction
function scrollDirection (currentTop) {
const result = currentTop > initTop // true is down & false is up
initTop = currentTop
return result
}
let initTop = 0
let isChatShow = true
const $header = document.getElementById('page-header')
const isChatBtnHide = typeof chatBtnHide === 'function'
const isChatBtnShow = typeof chatBtnShow === 'function'
window.scrollCollect = () => {
return btf.throttle(function (e) {
const currentTop = window.scrollY || document.documentElement.scrollTop
const isDown = scrollDirection(currentTop)
if (currentTop > 56) {
if (isDown) {
if ($header.classList.contains('nav-visible')) $header.classList.remove('nav-visible')
if (isChatBtnShow && isChatShow === true) {
chatBtnHide()
isChatShow = false
}
} else {
if (!$header.classList.contains('nav-visible')) $header.classList.add('nav-visible')
if (isChatBtnHide && isChatShow === false) {
chatBtnShow()
isChatShow = true
}
}
$header.classList.add('nav-fixed')
if (window.getComputedStyle($rightside).getPropertyValue('opacity') === '0') {
$rightside.style.cssText = 'opacity: 0.8; transform: translateX(-58px)'
}
} else {
if (currentTop === 0) {
$header.classList.remove('nav-fixed', 'nav-visible')
}
$rightside.style.cssText = "opacity: ''; transform: ''"
}
if (document.body.scrollHeight <= innerHeight) {
$rightside.style.cssText = 'opacity: 0.8; transform: translateX(-58px)'
}
}, 200)()
}
window.addEventListener('scroll', scrollCollect)
}
/**
* toc,anchor
*/
const scrollFnToDo = function () {
const isToc = GLOBAL_CONFIG_SITE.isToc
const isAnchor = GLOBAL_CONFIG.isAnchor
const $article = document.getElementById('article-container')
if (!($article && (isToc || isAnchor))) return
let $tocLink, $cardToc, scrollPercent, autoScrollToc, isExpand
if (isToc) {
const $cardTocLayout = document.getElementById('card-toc')
$cardToc = $cardTocLayout.getElementsByClassName('toc-content')[0]
$tocLink = $cardToc.querySelectorAll('.toc-link')
const $tocPercentage = $cardTocLayout.querySelector('.toc-percentage')
isExpand = $cardToc.classList.contains('is-expand')
scrollPercent = currentTop => {
const docHeight = $article.clientHeight
const winHeight = document.documentElement.clientHeight
const headerHeight = $article.offsetTop
const contentMath = (docHeight > winHeight) ? (docHeight - winHeight) : (document.documentElement.scrollHeight - winHeight)
const scrollPercent = (currentTop - headerHeight) / (contentMath)
const scrollPercentRounded = Math.round(scrollPercent * 100)
const percentage = (scrollPercentRounded > 100) ? 100 : (scrollPercentRounded <= 0) ? 0 : scrollPercentRounded
$tocPercentage.textContent = percentage
}
window.mobileToc = {
open: () => {
$cardTocLayout.style.cssText = 'animation: toc-open .3s; opacity: 1; right: 55px'
},
close: () => {
$cardTocLayout.style.animation = 'toc-close .2s'
setTimeout(() => {
$cardTocLayout.style.cssText = "opacity:''; animation: ''; right: ''"
}, 100)
}
}
// toc元素點擊
$cardToc.addEventListener('click', e => {
e.preventDefault()
const target = e.target.classList
if (target.contains('toc-content')) return
const $target = target.contains('toc-link')
? e.target
: e.target.parentElement
btf.scrollToDest(btf.getEleTop(document.getElementById(decodeURI($target.getAttribute('href')).replace('#', ''))), 300)
if (window.innerWidth < 900) {
window.mobileToc.close()
}
})
autoScrollToc = item => {
const activePosition = item.getBoundingClientRect().top
const sidebarScrollTop = $cardToc.scrollTop
if (activePosition > (document.documentElement.clientHeight - 100)) {
$cardToc.scrollTop = sidebarScrollTop + 150
}
if (activePosition < 100) {
$cardToc.scrollTop = sidebarScrollTop - 150
}
}
}
// find head position & add active class
const list = $article.querySelectorAll('h1,h2,h3,h4,h5,h6')
let detectItem = ''
const findHeadPosition = function (top) {
if (top === 0) {
return false
}
let currentId = ''
let currentIndex = ''
list.forEach(function (ele, index) {
if (top > btf.getEleTop(ele) - 80) {
const id = ele.id
currentId = id ? '#' + encodeURI(id) : ''
currentIndex = index
}
})
if (detectItem === currentIndex) return
if (isAnchor) btf.updateAnchor(currentId)
detectItem = currentIndex
if (isToc) {
$cardToc.querySelectorAll('.active').forEach(i => { i.classList.remove('active') })
if (currentId === '') {
return
}
const currentActive = $tocLink[currentIndex]
currentActive.classList.add('active')
setTimeout(() => {
autoScrollToc(currentActive)
}, 0)
if (isExpand) return
let parent = currentActive.parentNode
for (; !parent.matches('.toc'); parent = parent.parentNode) {
if (parent.matches('li')) parent.classList.add('active')
}
}
}
// main of scroll
window.tocScrollFn = function () {
return btf.throttle(function () {
const currentTop = window.scrollY || document.documentElement.scrollTop
isToc && scrollPercent(currentTop)
findHeadPosition(currentTop)
}, 100)()
}
window.addEventListener('scroll', tocScrollFn)
}
/**
* Rightside
*/
const rightSideFn = {
switchReadMode: () => { // read-mode
const $body = document.body
$body.classList.add('read-mode')
const newEle = document.createElement('button')
newEle.type = 'button'
newEle.className = 'fas fa-sign-out-alt exit-readmode'
$body.appendChild(newEle)
function clickFn () {
$body.classList.remove('read-mode')
newEle.remove()
newEle.removeEventListener('click', clickFn)
}
newEle.addEventListener('click', clickFn)
},
switchDarkMode: () => { // Switch Between Light And Dark Mode
const nowMode = document.documentElement.getAttribute('data-theme') === 'dark' ? 'dark' : 'light'
if (nowMode === 'light') {
activateDarkMode()
saveToLocal.set('theme', 'dark', 2)
GLOBAL_CONFIG.Snackbar !== undefined && btf.snackbarShow(GLOBAL_CONFIG.Snackbar.day_to_night)
} else {
activateLightMode()
saveToLocal.set('theme', 'light', 2)
GLOBAL_CONFIG.Snackbar !== undefined && btf.snackbarShow(GLOBAL_CONFIG.Snackbar.night_to_day)
}
// handle some cases
typeof utterancesTheme === 'function' && utterancesTheme()
typeof changeGiscusTheme === 'function' && changeGiscusTheme()
typeof FB === 'object' && window.loadFBComment()
typeof runMermaid === 'function' && window.runMermaid()
},
showOrHideBtn: (e) => { // rightside 點擊設置 按鈕 展開
const rightsideHideClassList = document.getElementById('rightside-config-hide').classList
rightsideHideClassList.toggle('show')
if (e.classList.contains('show')) {
rightsideHideClassList.add('status')
setTimeout(() => {
rightsideHideClassList.remove('status')
}, 300)
}
e.classList.toggle('show')
},
scrollToTop: () => { // Back to top
btf.scrollToDest(0, 500)
},
hideAsideBtn: () => { // Hide aside
const $htmlDom = document.documentElement.classList
$htmlDom.contains('hide-aside')
? saveToLocal.set('aside-status', 'show', 2)
: saveToLocal.set('aside-status', 'hide', 2)
$htmlDom.toggle('hide-aside')
},
runMobileToc: () => {
if (window.getComputedStyle(document.getElementById('card-toc')).getPropertyValue('opacity') === '0') window.mobileToc.open()
else window.mobileToc.close()
}
}
document.getElementById('rightside').addEventListener('click', function (e) {
const $target = e.target.id ? e.target : e.target.parentNode
switch ($target.id) {
case 'go-up':
rightSideFn.scrollToTop()
break
case 'rightside_config':
rightSideFn.showOrHideBtn($target)
break
case 'mobile-toc-button':
rightSideFn.runMobileToc()
break
case 'readmode':
rightSideFn.switchReadMode()
break
case 'darkmode':
rightSideFn.switchDarkMode()
break
case 'hide-aside-btn':
rightSideFn.hideAsideBtn()
break
default:
break
}
})
/**
* menu
* 側邊欄sub-menu 展開/收縮
*/
const clickFnOfSubMenu = () => {
document.querySelectorAll('#sidebar-menus .site-page.group').forEach(function (item) {
item.addEventListener('click', function () {
this.classList.toggle('hide')
})
})
}
/**
* 複製時加上版權信息
*/
const addCopyright = () => {
const copyright = GLOBAL_CONFIG.copyright
document.body.oncopy = (e) => {
e.preventDefault()
let textFont; const copyFont = window.getSelection(0).toString()
if (copyFont.length > copyright.limitCount) {
textFont = copyFont + '\n' + '\n' + '\n' +
copyright.languages.author + '\n' +
copyright.languages.link + window.location.href + '\n' +
copyright.languages.source + '\n' +
copyright.languages.info
} else {
textFont = copyFont
}
if (e.clipboardData) {
return e.clipboardData.setData('text', textFont)
} else {
return window.clipboardData.setData('text', textFont)
}
}
}
/**
* 網頁運行時間
*/
const addRuntime = () => {
const $runtimeCount = document.getElementById('runtimeshow')
if ($runtimeCount) {
const publishDate = $runtimeCount.getAttribute('data-publishDate')
$runtimeCount.innerText = btf.diffDate(publishDate) + ' ' + GLOBAL_CONFIG.runtime
}
}
/**
* 最後一次更新時間
*/
const addLastPushDate = () => {
const $lastPushDateItem = document.getElementById('last-push-date')
if ($lastPushDateItem) {
const lastPushDate = $lastPushDateItem.getAttribute('data-lastPushDate')
$lastPushDateItem.innerText = btf.diffDate(lastPushDate, true)
}
}
/**
* table overflow
*/
const addTableWrap = () => {
const $table = document.querySelectorAll('#article-container :not(.highlight) > table, #article-container > table')
if ($table.length) {
$table.forEach(item => {
btf.wrap(item, 'div', { class: 'table-wrap' })
})
}
}
/**
* tag-hide
*/
const clickFnOfTagHide = function () {
const $hideInline = document.querySelectorAll('#article-container .hide-button')
if ($hideInline.length) {
$hideInline.forEach(function (item) {
item.addEventListener('click', function (e) {
const $this = this
$this.classList.add('open')
const $fjGallery = $this.nextElementSibling.querySelectorAll('.fj-gallery')
$fjGallery.length && btf.initJustifiedGallery($fjGallery)
})
})
}
}
const tabsFn = {
clickFnOfTabs: function () {
document.querySelectorAll('#article-container .tab > button').forEach(function (item) {
item.addEventListener('click', function (e) {
const $this = this
const $tabItem = $this.parentNode
if (!$tabItem.classList.contains('active')) {
const $tabContent = $tabItem.parentNode.nextElementSibling
const $siblings = btf.siblings($tabItem, '.active')[0]
$siblings && $siblings.classList.remove('active')
$tabItem.classList.add('active')
const tabId = $this.getAttribute('data-href').replace('#', '')
const childList = [...$tabContent.children]
childList.forEach(item => {
if (item.id === tabId) item.classList.add('active')
else item.classList.remove('active')
})
const $isTabJustifiedGallery = $tabContent.querySelectorAll(`#${tabId} .fj-gallery`)
if ($isTabJustifiedGallery.length > 0) {
btf.initJustifiedGallery($isTabJustifiedGallery)
}
}
})
})
},
backToTop: () => {
document.querySelectorAll('#article-container .tabs .tab-to-top').forEach(function (item) {
item.addEventListener('click', function () {
btf.scrollToDest(btf.getEleTop(btf.getParents(this, '.tabs')), 300)
})
})
}
}
const toggleCardCategory = function () {
const $cardCategory = document.querySelectorAll('#aside-cat-list .card-category-list-item.parent i')
if ($cardCategory.length) {
$cardCategory.forEach(function (item) {
item.addEventListener('click', function (e) {
e.preventDefault()
const $this = this
$this.classList.toggle('expand')
const $parentEle = $this.parentNode.nextElementSibling
if (btf.isHidden($parentEle)) {
$parentEle.style.display = 'block'
} else {
$parentEle.style.display = 'none'
}
})
})
}
}
const switchComments = function () {
let switchDone = false
const $switchBtn = document.querySelector('#comment-switch > .switch-btn')
$switchBtn && $switchBtn.addEventListener('click', function () {
this.classList.toggle('move')
document.querySelectorAll('#post-comment > .comment-wrap > div').forEach(function (item) {
if (btf.isHidden(item)) {
item.style.cssText = 'display: block;animation: tabshow .5s'
} else {
item.style.cssText = "display: none;animation: ''"
}
})
if (!switchDone && typeof loadOtherComment === 'function') {
switchDone = true
loadOtherComment()
}
})
}
const addPostOutdateNotice = function () {
const data = GLOBAL_CONFIG.noticeOutdate
const diffDay = btf.diffDate(GLOBAL_CONFIG_SITE.postUpdate)
if (diffDay >= data.limitDay) {
const ele = document.createElement('div')
ele.className = 'post-outdate-notice'
ele.textContent = data.messagePrev + ' ' + diffDay + ' ' + data.messageNext
const $targetEle = document.getElementById('article-container')
if (data.position === 'top') {
$targetEle.insertBefore(ele, $targetEle.firstChild)
} else {
$targetEle.appendChild(ele)
}
}
}
const lazyloadImg = () => {
window.lazyLoadInstance = new LazyLoad({
elements_selector: 'img',
threshold: 0,
data_src: 'lazy-src'
})
}
const relativeDate = function (selector) {
selector.forEach(item => {
const $this = item
const timeVal = $this.getAttribute('datetime')
$this.innerText = btf.diffDate(timeVal, true)
$this.style.display = 'inline'
})
}
const unRefreshFn = function () {
window.addEventListener('resize', () => {
adjustMenu(false)
btf.isHidden(document.getElementById('toggle-menu')) && mobileSidebarOpen && sidebarFn.close()
})
document.getElementById('menu-mask').addEventListener('click', e => { sidebarFn.close() })
clickFnOfSubMenu()
GLOBAL_CONFIG.islazyload && lazyloadImg()
GLOBAL_CONFIG.copyright !== undefined && addCopyright()
}
window.refreshFn = function () {
initAdjust()
if (GLOBAL_CONFIG_SITE.isPost) {
GLOBAL_CONFIG.noticeOutdate !== undefined && addPostOutdateNotice()
GLOBAL_CONFIG.relativeDate.post && relativeDate(document.querySelectorAll('#post-meta time'))
} else {
GLOBAL_CONFIG.relativeDate.homepage && relativeDate(document.querySelectorAll('#recent-posts time'))
GLOBAL_CONFIG.runtime && addRuntime()
addLastPushDate()
toggleCardCategory()
}
scrollFnToDo()
GLOBAL_CONFIG_SITE.isHome && scrollDownInIndex()
addHighlightTool()
GLOBAL_CONFIG.isPhotoFigcaption && addPhotoFigcaption()
scrollFn()
const $jgEle = document.querySelectorAll('#article-container .fj-gallery')
$jgEle.length && runJustifiedGallery($jgEle)
runLightbox()
addTableWrap()
clickFnOfTagHide()
tabsFn.clickFnOfTabs()
tabsFn.backToTop()
switchComments()
document.getElementById('toggle-menu').addEventListener('click', () => { sidebarFn.open() })
}
refreshFn()
unRefreshFn()
})