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update

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This commit is contained in:
Thomas Chartron 2021-11-13 14:28:56 +01:00
parent 4fcf7e65a7
commit 7c2466a21a
1 changed files with 9 additions and 4 deletions
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13
src/js/page.js
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@ -7,23 +7,28 @@ document.addEventListener("DOMContentLoaded", function() {
// const navSections = new Array($('.toc').length);
window.addEventListener('scroll', activeTocItem)
let has_one_active_toc = false
// let has_one_active_toc = false
let current_selected_toc = null
const observer = new window.IntersectionObserver(entries => {
entries.forEach(entry => {
// Add 'active' class if observation target is inside viewport
// console.log(entry.isIntersecting)
// console.log(entry.intersectionRatio)
if (entry.isIntersecting && !has_one_active_toc) {
if (entry.isIntersecting) {
// has_one_active_toc = true
console.log(entry, 'active')
let res = findCorrespondingTocTitle(entry.target)
if (current_selected_toc !== null && current_selected_toc !== res) {
current_selected_toc.classList.remove('bg-blue-800');
current_selected_toc = res
}
console.log(res)
res.classList.add('bg-blue-800');
has_one_active_toc = true
} else {
// has_one_active_toc = false
console.log(entry, 'inactive')
let res = findCorrespondingTocTitle(entry.target)
res.classList.remove('bg-blue-800');
has_one_active_toc = false
}
})
}, {