Deuxfleurs/site
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improved performance of the script for the loading of it and the scroll event listener

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This commit is contained in:
Adrian Rosin 2024-02-07 09:52:32 +01:00
parent efeeba4743
commit 013f315c50
1 changed files with 125 additions and 114 deletions
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25
static/script-bon.js
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@ -1,6 +1,7 @@
async function setupPage() {
// Checks if the user enabled prefers-reduced-motion // Checks if the user enabled prefers-reduced-motion
const prefersReducedMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches; const prefersReducedMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches;
// Dictionary to keep track of animation intervals // Dictionary to keep track of animation intervals
let animationIntervals = {}; let animationIntervals = {};
// Dictionary to keep track of delay count for each animation // Dictionary to keep track of delay count for each animation
@ -80,14 +81,12 @@ animate("rennes", 1000);
animate("orsay", 2000); animate("orsay", 2000);
animate("parterre", 1500); animate("parterre", 1500);
document.addEventListener('DOMContentLoaded', function() {
const toggleableElements = document.querySelectorAll('.toggleable, .img_top_toggleable'); const toggleableElements = document.querySelectorAll('.toggleable, .img_top_toggleable');
toggleableElements.forEach(function (element) { toggleableElements.forEach(function (element) {
element.addEventListener('click', function () { element.addEventListener('click', function () {
toggleAnimation(); toggleAnimation();
}); });
}); });
});
function toggleAnimation() { function toggleAnimation() {
const toggleable = document.querySelector('.toggleable'); const toggleable = document.querySelector('.toggleable');
@ -116,10 +115,13 @@ function toggleAnimation() {
} }
} }
let lastScrollTop = 0; // Last position of the scroll let lastScrollTop = 0;
let isScrolling = false;
window.addEventListener("scroll", function() { window.addEventListener("scroll", function() {
let currentPosition = window.pageYOffset || document.documentElement.scrollTop; if (!isScrolling) {
window.requestAnimationFrame(function() {
let currentPosition = window.scrollY || document.documentElement.scrollTop;
const toggleButton = document.querySelectorAll('.toggleButton'); const toggleButton = document.querySelectorAll('.toggleButton');
if (currentPosition > lastScrollTop) { if (currentPosition > lastScrollTop) {
@ -133,6 +135,15 @@ window.addEventListener("scroll", function() {
button.style.display = "block"; button.style.display = "block";
}); });
} }
lastScrollTop = currentPosition <= 0 ? 0 : currentPosition; // For Mobile or negative scrolling
}, false);
lastScrollTop = currentPosition <= 0 ? 0 : currentPosition; // For Mobile or negative scrolling
isScrolling = false;
});
isScrolling = true;
}
});
}
// Loads the script once the document is ready
document.addEventListener('DOMContentLoaded', setupPage);