Ce carrousel utilise l'ancrage de défilement CSS pour créer des transitions de diapositives fluides et performantes, qui n'entraînent pas de changements de mise en page.
Vous pouvez parcourir ce carrousel de différentes manières: en plus des commandes de navigation, il prend en charge la navigation au clavier et le balayage. Pour optimiser la facilité d'utilisation et la lisibilité, le carrousel arrête la transition automatique une fois que l'utilisateur passe la souris dans la zone du carrousel.
HTML
<div id="carousel">
<div id="slide-container">
<div class="slide" data-slideIndex="0">
<div class="slide-banner">Tour the Empire State Building! <a href="">Buy tickets now.</a></div>
<img width="1200" height="600" src="./newyork.jpg">
</div>
<div class="slide" data-slideIndex="1">
<div class="slide-banner">Ride the Shinkansen! <a href="">Buy tickets now.</a></div>
<img width="1200" height="600" src="./tokyo.jpg">
</div>
<div class="slide" data-slideIndex="2">
<div class="slide-banner">Discover relaxation! <a href="">Buy tickets now.</a></div>
<img width="1200" height="600" src="./beach.jpg">
</div>
<div class="slide" data-slideIndex="3">
<div class="slide-banner">See penguins! <a href="">Buy tickets now.</a></div>
<img width="1200" height="600" src="./penguins.jpg">
</div>
<div class="slide" data-slideIndex="4">
<div class="slide-banner">Take a ride on the wheel! <a href="">Buy tickets now.</a></div>
<img width="1200" height="600" src="./wheel.jpg">
</div>
</div>
<div id="back-button" class="arrow back">←</div>
<div id="forward-button" class="arrow forward">→</div>
<div class="slide-indicators">
<div class="slide-indicator active"></div>
<div class="slide-indicator"></div>
<div class="slide-indicator"></div>
<div class="slide-indicator"></div>
<div class="slide-indicator"></div>
</div>
</div>CSS
#carousel {
max-width: 1200px;
display: flex;
flex-direction: column;
margin: 0 auto;
position: relative;
}
.slide-indicators {
display: flex;
justify-content: center;
}
.slide-indicator {
height: 44px;
width: 50px;
display: flex;
justify-items: center;
cursor: pointer;
}
.slide-indicator:after {
content: "";
background-color: #878787;
height: 10px;
margin-top: 10px;
width: 40px;
}
.slide-indicator.active:after,
.slide-indicator:hover:after {
background-color: #000;
}
.slide-banner {
background-color: #000;
color: #fff;
position: absolute;
left: 0;
bottom: 20px;
padding: 15px;
font-size: 2.5vw;
}
.slide-banner a {
color: #fff;
}
#slide-container {
scroll-snap-type: x mandatory;
overflow-x: scroll;
overflow-y: hidden;
display: flex;
align-items: center;
height: 100%;
gap: 10px;
-webkit-overflow-scrolling: touch;
scroll-behavior: smooth;
}
.slide {
scroll-snap-align: center;
position: relative;
min-width: 100%;
padding-top: 50%;
}
.slide img {
height: 100%;
width: auto;
position: absolute;
top: 0;
left: 0;
}
.arrow {
color: #fff;
height: 20px;
width: 20px;
background-color: #000;
position: absolute;
padding: 10px;
opacity: .3;
cursor: pointer;
}
.arrow.back {
left: 10px;
top: 10px;
}
.arrow.forward {
right: 10px;
top: 10px;
}
.arrow:hover {
opacity: 1;
}
JS
function autoplayCarousel() {
const carouselEl = document.getElementById("carousel");
const slideContainerEl = carouselEl.querySelector("#slide-container");
const slideEl = carouselEl.querySelector(".slide");
let slideWidth = slideEl.offsetWidth;
// Add click handlers
document.querySelector("#back-button")
.addEventListener("click", () => navigate("backward"));
document.querySelector("#forward-button")
.addEventListener("click", () => navigate("forward"));
document.querySelectorAll(".slide-indicator")
.forEach((dot, index) => {
dot.addEventListener("click", () => navigate(index));
dot.addEventListener("mouseenter", () => clearInterval(autoplay));
});
// Add keyboard handlers
document.addEventListener('keydown', (e) => {
if (e.code === 'ArrowLeft') {
clearInterval(autoplay);
navigate("backward");
} else if (e.code === 'ArrowRight') {
clearInterval(autoplay);
navigate("forward");
}
});
// Add resize handler
window.addEventListener('resize', () => {
slideWidth = slideEl.offsetWidth;
});
// Autoplay
const autoplay = setInterval(() => navigate("forward"), 3000);
slideContainerEl.addEventListener("mouseenter", () => clearInterval(autoplay));
// Slide transition
const getNewScrollPosition = (arg) => {
const gap = 10;
const maxScrollLeft = slideContainerEl.scrollWidth - slideWidth;
if (arg === "forward") {
const x = slideContainerEl.scrollLeft + slideWidth + gap;
return x <= maxScrollLeft ? x : 0;
} else if (arg === "backward") {
const x = slideContainerEl.scrollLeft - slideWidth - gap;
return x >= 0 ? x : maxScrollLeft;
} else if (typeof arg === "number") {
const x = arg * (slideWidth + gap);
return x;
}
}
const navigate = (arg) => {
slideContainerEl.scrollLeft = getNewScrollPosition(arg);
}
// Slide indicators
const slideObserver = new IntersectionObserver((entries, observer) => {
entries.forEach(entry => {
if (entry.isIntersecting) {
const slideIndex = entry.target.dataset.slideindex;
carouselEl.querySelector('.slide-indicator.active').classList.remove('active');
carouselEl.querySelectorAll('.slide-indicator')[slideIndex].classList.add('active');
}
});
}, { root: slideContainerEl, threshold: .1 });
document.querySelectorAll('.slide').forEach((slide) => {
slideObserver.observe(slide);
});
}
autoplayCarousel();