hexo-theme-keep/source/js/post-helper.js

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JavaScript
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/* global KEEP */
function initToggleShowToc() {
KEEP.utils.postHelper = {
postPageContainerDom: document.querySelector('.post-page-container'),
toggleShowTocBtnDom: document.querySelector('.toggle-show-toc'),
toggleShowTocIcon: document.querySelector('.toggle-show-toc i'),
mainContentDom: document.querySelector('.main-content'),
postToolsDom: document.querySelector('.post-tools'),
goToCommentsDom: document.querySelector('.post-tools .go-to-comments'),
isShowToc: false,
initToggleToc() {
this.toggleShowTocBtnDom &&
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this.toggleShowTocBtnDom.addEventListener('click', () => {
this.isShowToc = !this.isShowToc
KEEP.styleStatus.isShowToc = this.isShowToc
KEEP.setStyleStatus()
this.handleToggleToc(this.isShowToc)
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})
},
handleToggleToc(isOpen) {
if (isOpen) {
this.postPageContainerDom.classList.add('show-toc')
document.body.classList.add('has-toc')
} else {
this.postPageContainerDom.classList.remove('show-toc')
document.body.classList.remove('has-toc')
}
},
hasToc(isOpen) {
this.toggleShowTocBtnDom.style.display = 'flex'
this.isShowToc = isOpen
this.handleToggleToc(isOpen)
},
setPostToolsLeft() {
const winWidth = window.innerWidth
const mcWidth = this.mainContentDom.getBoundingClientRect().width.toFixed(0)
let offsetX = 5
if (winWidth <= 800) {
offsetX = 3
}
this.postToolsDom.style.opacity = `1`
this.postToolsDom.style.left = `calc((100vw - ${mcWidth}px) / 2 - ${offsetX}rem)`
},
initSetPostToolsLeft() {
setTimeout(() => {
this.setPostToolsLeft()
}, 150)
window.addEventListener('resize', () => {
this.setPostToolsLeft()
})
},
// go comment anchor
goToComments() {
if (this.goToCommentsDom) {
const commentsAnchor = document.querySelector('#comments-anchor')
this.goToCommentsDom.addEventListener('click', () => {
commentsAnchor && commentsAnchor.scrollIntoView()
})
}
},
// watch comments count
watchPostCommentsCount() {
const commentsCountDom = this.postToolsDom.querySelector('.post-comments-count')
const config = { attributes: true, childList: true }
const callback = function (mutationsList) {
mutationsList.forEach((item) => {
if (item.type === 'childList') {
const count = Number(item.target.innerHTML)
if (count > 0) {
commentsCountDom.style.display = 'flex'
if (count > 99) {
commentsCountDom.innerHTML = '99+'
observer.disconnect()
}
}
}
})
}
const observer = new MutationObserver(callback)
observer.observe(commentsCountDom, config)
}
}
KEEP.utils.postHelper.initToggleToc()
KEEP.utils.postHelper.initSetPostToolsLeft()
KEEP.utils.postHelper.goToComments()
KEEP.utils.postHelper.watchPostCommentsCount()
}
if (KEEP.theme_config.pjax.enable === true && KEEP.utils) {
initToggleShowToc()
} else {
window.addEventListener('DOMContentLoaded', initToggleShowToc)
}