hugo-toha/assets/scripts/features/toc/index.js
2023-01-04 18:18:16 -08:00

48 lines
1.5 KiB
JavaScript

import { getDeviceState } from '../../core'
// Toggle Table of Contents on click. Here, class "hide" open the toc
function toggleTOC () {
const toc = document.getElementById('toc-section')
if (toc == null) {
return
}
if (toc.classList.contains('hide')) {
toc.classList.remove('hide')
} else {
// if sidebar-section is open, then close it first
const sidebar = document.getElementById('sidebar-section')
if (sidebar != null && sidebar.classList.contains('hide')) {
sidebar.classList.remove('hide')
}
// add "hide" class
toc.classList.add('hide')
// if it is mobile device. then scroll to top.
const { isMobile } = getDeviceState()
if (isMobile && toc.classList.contains('hide')) {
document.body.scrollTop = 0
document.documentElement.scrollTop = 0
}
}
if (document.getElementById('hero-area') != null) {
document.getElementById('hero-area').classList.toggle('hide')
}
}
window.addEventListener('DOMContentLoaded', () => {
// bind click event to #toc-toggle in navbar-2.html
const toggle = document.getElementById('toc-toggler')
if (toggle) toggle.addEventListener('click', toggleTOC)
// hide TOC when user clicks on a TOC link.
// Only applies if it's mobile.
const toc = document.getElementById('TableOfContents')
if (toc) {
toc.addEventListener('click', (event) => {
const { isMobile } = getDeviceState()
if (isMobile && event.target.nodeName === 'A') {
toggleTOC()
}
})
}
})