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pdp-product-image-with-thumbnails.html
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pdp-product-image-with-thumbnails.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>Slick Slider - PDP product images with thumbnails accessible boilerplate</title>
<link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/kenwheeler/slick@1.8.1/slick/slick.css">
<link rel="stylesheet" type="text/css" href="https://cdn.jsdelivr.net/gh/kenwheeler/slick@1.8.1/slick/slick-theme.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.3/css/all.min.css">
<meta name="description" content="Pre-built code sample for a large PDP image with an accessible carousel of product thumbnails using Slick Slider.">
<meta name="keywords" content="accessible, accessibility, WCAG, carousel, slider, Slick, jQuery, PDP, thumbnails, template, boilerplate">
<!-- Open Graph -->
<meta property="og:title" content="Slick Slider - PDP product images with thumbnails accessible boilerplate">
<meta property="og:description" content="Pre-built code sample for a large PDP image with an accessible carousel of product thumbnails using Slick Slider.">
<meta property="og:type" content="website">
<!-- Twitter Card -->
<meta name="twitter:card" content="summary">
<meta name="twitter:title" content="Slick Slider - PDP product images with thumbnails accessible boilerplate">
<meta name="twitter:description" content="Pre-built code sample for a large PDP image with an accessible carousel of product thumbnails using Slick Slider.">
<meta name="twitter:creator" content="Accessible_360">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=yes">
</head>
<body>
<main>
<section class="carousel" aria-label="carousel with product images">
<p class="sr-only">This is a carousel with one large image and a track of thumbnails below. Select any of the image buttons to change the main image above.</p>
<!-- Large, currently-active image -->
<div class="current-image">
<a href="https://accessible360.com">
<img src="../images/blanca-paloma-sanchez-500x500.jpg" alt="Succulents 1">
</a>
</div>
<!-- Thumbnail track -->
<div class="thumbnails-track">
<!-- Previous button -->
<button class="button previous-button">
<span class="fas fa-angle-left" aria-hidden="true"></span>
<span class="sr-only">Previous images</span>
</button>
<!-- Thumbnails -->
<div class="thumbnails">
<div class="thumbnail">
<button class="thumbnail-button" aria-current="true">
<img src="../images/blanca-paloma-sanchez-500x500.jpg" alt="image 1 of 5" data-full-alt="Succulents 1">
</button>
</div>
<div class="thumbnail">
<button class="thumbnail-button">
<img src="../images/erol-ahmed-500x500.jpg" alt="image 2 of 5" data-full-alt="Succulents 2">
</button>
</div>
<div class="thumbnail">
<button class="thumbnail-button">
<img src="../images/armando-castillejo-500x500.jpg" alt="image 3 of 5" data-full-alt="Succulents 3">
</button>
</div>
<div class="thumbnail">
<button class="thumbnail-button">
<img src="../images/calle-macarone-500x500.jpg" alt="image 4 of 5" data-full-alt="Succulents 4">
</button>
</div>
<div class="thumbnail">
<button class="thumbnail-button">
<img src="../images/annie-spratt-500x500.jpg" alt="image 5 of 5" data-full-alt="Succulents 5">
</button>
</div>
</div>
<!-- Next button -->
<button class="button next-button">
<span class="fas fa-angle-right" aria-hidden="true"></span>
<span class="sr-only">Next images</span>
</button>
</div>
</section>
<a href="https://accessible360.com" class="credits" target="_blank">
Built by <b><u>Accessible360</u></b> <img src="https://assets.codepen.io/3609497/accessible360-logo-black.png" alt="">
</a>
</main>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script src="https://cdn.jsdelivr.net/gh/kenwheeler/slick@1.8.1/slick/slick.min.js"></script>
<script>
var currentImage;
var thumbnails, thumbnailButtons;
window.addEventListener('DOMContentLoaded', function(e) {
currentImage = document.querySelector('.current-image');
/**
When Slick is initialized, retrieve the relevant DOM elements and watch for activation of the thumbnail buttons
*/
$('.carousel .thumbnails').on('init', function(e, slick) {
thumbnails = document.querySelectorAll('.thumbnails .thumbnail');
thumbnailButtons = document.querySelectorAll('.thumbnails .thumbnail .thumbnail-button');
// Ensure that all non-visible slides are impossible to reach
hideNonVisibleSlides();
// Update the large image each time a thumbnail is activated
thumbnailButtons.forEach(function(thumbnailButton) {
thumbnailButton.addEventListener('click', function(e) {
activateThumbnail(thumbnailButton);
});
});
});
/**
When a transition happens, make sure non-visible slides are fully hidden
*/
$('.carousel .thumbnails').on('afterChange', function(e, slick, currentSlide) {
hideNonVisibleSlides();
});
/**
Initialize Slick Slider with recommended configuration options
*/
$('.carousel .thumbnails').slick({
// This removes the inappropriate tabpanel and tab roles and disables arrow key navigation.
// NOTE: if you want to use arrow key navigation, you should implement that separately without enabling this option. The usability benefits of key navigation don't outweigh the accessibility impact of the tab implementation.
accessibility: false,
// Use highly-accessible custom elements for prev/next buttons.
// NOTE: You can also define the elements here as strings, if you prefer
prevArrow: document.querySelector('.carousel .previous-button'),
nextArrow: document.querySelector('.carousel .next-button'),
// Show multiple slides
slidesToShow: 3,
// Disable infinite looping
infinite: false,
// Disable mouse-based dragging
draggable: false,
// Not necessary for accessibility, but these setting breakpoints help with our embeds look nicer
responsive: [
{
breakpoint: 575,
settings: {
slidesToShow: 2
}
},
{
breakpoint: 375,
settings: {
slidesToShow: 1
}
}
]
});
});
/**
Fully hide non-visible thumbnails by adding tabindex="-1" when they go out of view
*/
function hideNonVisibleSlides() {
var hiddenThumbnails = document.querySelectorAll('.thumbnails .thumbnail[aria-hidden="true"] .thumbnail-button');
// Reset tabindex for all thumbnail buttons
thumbnailButtons.forEach(function(thumbnailButton) {
thumbnailButton.removeAttribute('tabindex');
});
// Make hidden thumbnail buttons impossible to reach via keyboard
hiddenThumbnails.forEach(function(hiddenThumbnailButton) {
hiddenThumbnailButton.setAttribute('tabindex', -1);
});
}
/**
Update the large current image when a thumbnail button is activated.
*/
function activateThumbnail(thumbnailButton) {
// Swap the current image based to match the thumbnail
// - If you'd like to use separate images, like higher-res versions, consider using the index to pick an appropriate src string from an array, or storing the URI of the higher-res image in a custom data attribute on the thumbnail.
var newImageSrc = thumbnailButton.querySelector('img').getAttribute('src');
var newImageAlt = thumbnailButton.querySelector('img').getAttribute('data-full-alt');
currentImage.querySelector('img').setAttribute('src', newImageSrc);
currentImage.querySelector('img').setAttribute('alt', newImageAlt);
// Remove aria-current from any previously-activated thumbnail
thumbnailButtons.forEach(function(button) {
button.removeAttribute('aria-current');
});
// Indicate to screen readers which thumbnail is selected using aria-current
thumbnailButton.setAttribute('aria-current', true);
}
</script>
<style>
/**
Setup for code demo only
*/
:root {
--current-image-height: 300px;
--thumbnails-track-height: 90px;
--thumbnail-width: 100px;
}
body {
margin: 10px;
}
/** Container */
.carousel {
max-width: 400px;
}
/** Current image */
.current-image {
margin-bottom: 1px;
}
.current-image a {
display: block;
height: var(--current-image-height);
overflow: hidden;
position: relative;
}
.current-image a:before {
content: '';
position: absolute;
left: 0;
width: 100%;
height: 100%;
z-index: 1;
transition: box-shadow .1s linear;
}
.current-image a:focus {
outline: 0;
}
.current-image a:focus:before {
box-shadow: inset 0 0 0 1px black,
inset 0 0 0 4px white;
}
.current-image img {
display: block;
object-fit: cover;
width: 100%;
height: 100%;
}
/** Previous and next buttons */
.button {
background: none;
border: 0;
cursor: pointer;
font-size: 30px;
color: rgba(0,0,0,.7);
padding: 0;
margin: 0 1px;
flex: 0 0 25px;
transition: all .2s linear;
}
.button:hover {
background-color: rgba(0,0,0,.1);
color: black;
}
.button:focus {
outline: none;
background-color: royalblue;
color: rgba(255,255,255,1);
}
.button[aria-disabled="true"] {
opacity: .3;
}
/**
Thumbnails container
*/
.thumbnails-track {
display: flex;
}
.thumbnails {
overflow: hidden;
}
.slick-track {
display: flex;
}
/** Single thumbnail */
.thumbnail {
flex: 0 0 var(--thumbnail-width);
margin-right: 1px;
position: relative;
}
.thumbnail-button {
display: block;
padding: 0;
height: var(--thumbnails-track-height);
cursor: pointer;
border: 0;
background: none;
background-color: rgba(0,0,0,.4);
transition: opacity .1s linear;
}
.thumbnail-button:before {
content: '';
position: absolute;
left: 0;
width: 100%;
height: 100%;
z-index: 1;
transition: box-shadow .1s linear;
}
.thumbnail-button:focus {
outline: 0;
}
.thumbnail-button:focus:before {
box-shadow: inset 0 0 0 1px black,
inset 0 0 0 4px white;
}
.thumbnail-button:focus img,
.thumbnail-button:hover img,
.thumbnail-button[aria-current="true"] img {
opacity: 1;
filter: grayscale(0);
}
.thumbnail-button img {
display: block;
width: 100%;
height: 100%;
object-fit: cover;
opacity: .5;
filter: grayscale(.6);
transition: all .1s linear;
}
/** Credits at bottom */
.credits {
display: inline-block;
margin-top: 15px;
padding: 10px;
font-size: 14px;
color: black;
text-decoration: none;
opacity: .7;
}
.credits img {
height: 30px;
margin-left: 5px;
margin-top: -2px;
vertical-align: middle;
}
.credits:hover,
.credits:focus {
opacity: 1;
}
</style>
</body>
</html>