Swipe Scroller for Svelte

Horizontal card slider for the modern web. Requires minimum JavaScript. Demo

Features

• Performant - scrolling and snapping are powered by CSS, not JS.
• Accessible - control with touch, scroll, click¹, and keyboard².
• Customizable - override the provided buttons and the <noscript>.

Browser Support

Tested on the latest evergreen browsers.

	Chrome	Safari	Firefox	Safari (iOS)	Samsung Internet
CSS Scroll Snap	69	11	68	11	10.1
CSS Scroll-behavior	61	15.4	36	15.4	8.2

Quick Start

npm create svelte@latest
npm i swipe-scroller -D

Following code is based on SvelteKit v1.

<!-- src/routes/+layout.svelte -->

<script>
  import 'swipe-scroller/style';
</script>

<div class="container-outer" style="position: fixed; inset: 0;" />

<div style="position: relative; overflow-x: hidden;">
  <slot />
</div>

<!-- src/routes/+page.svelte -->

<script>
  import Scroller from 'swipe-scroller/Scroller.svelte';
</script>

<div class="container-inner">
  <h1>Swipe Scroller</h1>
</div>

<Scroller>
  {#each { length: 5 } as _, index}
    <a href="#{index}" class="card">
      <img src="https://picsum.photos/572?random={index}" draggable="false" alt="" />
      <div>Card No. {index + 1}</div>
    </a>
  {/each}
</Scroller>

<style>
  .card {
    text-decoration: none;
    color: white;
    background-color: gray;
    width: 80%;
    min-width: 224px;
    max-width: 296px;
    overflow: hidden;
  }

  .card > img {
    display: block;
    aspect-ratio: 1;
    width: 100%;
  }

  .card > div {
    padding: 1rem;
    text-align: center;
  }
</style>

Reference how it works for an in-depth explanation.

Events

The following DOM events are forwarded to the component.

• scroll
• scrollend - limited browser support

<!-- Provide custom callbacks if needed. -->
<Scroller on:scroll on:scrollend />

Options

// Optional Component Props

/** Width and height of the clickable control buttons. */
export let buttonWidth = '2.5rem';
/** Horizontal gap between the provided card components. */
export let cardGap = '1.25rem';

/** Hang control buttons on the outer container border. */
export let hangButtons = true;
/** Invert the scroll direction of the control buttons. */
export let invertButtons = false;

Slots

<!-- Optional Named Slots -->

<slot name="noscript" />
<slot name="button-prev" />
<slot name="button-next" />

Limitations

• JavaScript is required to enable horizontal scroll.
• Card components should have identical width.

Footnotes

1. The buttons are shown only when hovered with @media (pointer: fine) such as a mouse cursor. ↩

2. For accessibility, wrap the card component with tabbable elements such as <a> or <button>. ↩