Questo pattern mostra come creare un componente delle impostazioni reattivo, che supporti più input del dispositivo e funzioni su più browser.
Articolo completo · Video su YouTube · Fonte su GitHub
HTML
<main>
<h1>Settings</h1>
<form>
<section>
<header>
<h2>Sound & vibration</h2>
<small>Adjust system volume channels</small>
</header>
<fieldset>
<div class="fieldset-item">
<picture aria-hidden="true">
<svg viewBox="0 0 24 24">
<title>A note icon</title>
<path d="M12 3v10.55c-.59-.34-1.27-.55-2-.55-2.21 0-4 1.79-4 4s1.79 4 4 4 4-1.79 4-4V7h4V3h-6z"/>
</svg>
</picture>
<div class="input-stack">
<label
for="media-volume"
id="media-volume"
aria-hidden="true">
Media volume
</label>
<input
name="media-volume"
aria-labelledby="media-volume"
type="range"
value="3"
max="10"
style="--track-fill: 30%"
>
</div>
</div>
<div class="fieldset-item">
<picture aria-hidden="true">
<title>A phone icon</title>
<svg viewBox="0 0 24 24">
<path d="M6.62 10.79c1.44 2.83 3.76 5.14 6.59 6.59l2.2-2.2c.27-.27.67-.36 1.02-.24 1.12.37 2.33.57 3.57.57.55 0 1 .45 1 1V20c0 .55-.45 1-1 1-9.39 0-17-7.61-17-17 0-.55.45-1 1-1h3.5c.55 0 1 .45 1 1 0 1.25.2 2.45.57 3.57.11.35.03.74-.25 1.02l-2.2 2.2z"/>
</svg>
</picture>
<div class="input-stack">
<label for="call-volume" id="call-volume" aria-hidden="true">Call volume</label>
<input
name="call-volume"
aria-labelledby="call-volume"
type="range"
value="7"
max="10"
style="--track-fill: 70%"
>
</div>
</div>
<div class="fieldset-item">
<picture aria-hidden="true">
<svg viewBox="0 0 24 24">
<title>A bell icon</title>
<path d="M12 22c1.1 0 2-.9 2-2h-4c0 1.1.89 2 2 2zm6-6v-5c0-3.07-1.64-5.64-4.5-6.32V4c0-.83-.67-1.5-1.5-1.5s-1.5.67-1.5 1.5v.68C7.63 5.36 6 7.92 6 11v5l-2 2v1h16v-1l-2-2z"/>
</svg>
</picture>
<div class="input-stack">
<label for="ring-volume" id="ring-volume" aria-hidden="true">Ring volume</label>
<input
name="ring-volume"
aria-labelledby="ring-volume"
type="range"
value="5"
max="10"
style="--track-fill: 50%"
>
</div>
</div>
<div class="fieldset-item">
<picture aria-hidden="true">
<svg viewBox="0 0 24 24">
<title>An alarm clock icon</title>
<path d="M22 5.72l-4.6-3.86-1.29 1.53 4.6 3.86L22 5.72zM7.88 3.39L6.6 1.86 2 5.71l1.29 1.53 4.59-3.85zM12.5 8H11v6l4.75 2.85.75-1.23-4-2.37V8zM12 4c-4.97 0-9 4.03-9 9s4.02 9 9 9c4.97 0 9-4.03 9-9s-4.03-9-9-9zm0 16c-3.87 0-7-3.13-7-7s3.13-7 7-7 7 3.13 7 7-3.13 7-7 7z"/>
</svg>
</picture>
<div class="input-stack">
<label for="alarm-volume" id="alarm-volume" aria-hidden="true">Alarm volume</label>
<input
name="alarm-volume"
aria-labelledby="alarm-volume"
type="range"
value="8"
max="10"
style="--track-fill: 80%"
>
</div>
</div>
</fieldset>
</section>
<section>
<header>
<h2>Notifications</h2>
<small>Turn specific channels on/off</small>
</header>
<fieldset>
<div class="fieldset-item">
<input
type="checkbox"
checked
id="text-notifications"
name="text-notifications"
>
<div class="input-stack">
<label for="text-notifications">
<h3>Text Messages</h3>
<small>Get notified about all text messages sent to your device</small>
</label>
</div>
</div>
<div class="fieldset-item">
<input
type="checkbox"
id="voice-notifications"
name="voice-notifications"
>
<div class="input-stack">
<label for="voice-notifications">
<h3>Voice Mail</h3>
<small>Get notified about all voice messages sent to your device</small>
</label>
</div>
</div>
<div class="fieldset-item">
<input
type="checkbox"
id="email-notifications"
name="email-notifications"
>
<div class="input-stack">
<label for="email-notifications">
<h3>Emails</h3>
<small>Get notified about all text messages to your device</small>
</label>
</div>
</div>
</fieldset>
</section>
</form>
</main>CSS
@custom-media --motionOK (prefers-reduced-motion: no-preference);
:root {
--surface1: lch(10 0 0);
--surface2: lch(15 0 0);
--surface3: lch(20 0 0);
--surface4: lch(25 0 0);
--text1: lch(95 0 0);
--text2: lch(75 0 0);
--brand: lch(64 20 237);
--brand-bg1: lch(70 64 349);
--brand-bg2: lch(60 84 300);
--brand-bg-gradient: linear-gradient(
to bottom,
var(--brand-bg1),
var(--brand-bg2)
);
--thumb-highlight-color: lch(100 0 0 / 20%);
--space-xxs: .25rem;
--space-xs: .5rem;
--space-sm: 1rem;
--space-md: 1.5rem;
--space-lg: 2rem;
--space-xl: 3rem;
--space-xxl: 6rem;
--isLTR: 1;
--isRTL: -1;
&:dir(rtl) {
--isLTR: -1;
--isRTL: 1;
}
@media (prefers-color-scheme: light) {
& {
--surface1: lch(90 0 0);
--surface2: lch(100 0 0);
--surface3: lch(98 0 0);
--surface4: lch(85 0 0);
--text1: lch(20 0 0);
--text2: lch(40 0 0);
--brand: lch(64 40 237);
--brand-bg1: lch(50 64 349);
--brand-bg2: lch(40 84 300);
--thumb-highlight-color: lch(0 0 0 / 20%);
}
}
}
html {
block-size: 100%;
inline-size: 100%;
}
body {
min-block-size: 100%;
min-inline-size: 100%;
box-sizing: border-box;
margin: 0;
padding-block: var(--space-xs);
background: var(--surface1);
color: var(--text1);
font-family: system-ui, sans-serif;
}
h1,h2,h3 {
margin: 0;
font-weight: 500;
}
main {
display: grid;
gap: var(--space-xl);
place-content: center;
padding: var(--space-sm);
@media (width >= 540px) {
padding: var(--space-lg);
}
@media (width >= 800px) {
padding: var(--space-xl);
}
}
form {
max-width: 89vw;
display: grid;
gap: var(--space-xl) var(--space-xxl);
--repeat: auto-fit;
grid-template-columns:
repeat(var(--repeat), minmax(min(10ch, 100%), 35ch));
align-items: flex-start;
@media (orientation: landscape) and (width >= 640px) {
--repeat: 2;
}
}
section {
display: grid;
gap: var(--space-md);
}
header {
display: grid;
gap: var(--space-xxs);
}
fieldset {
border: 1px solid var(--surface4);
background: var(--surface4);
padding: 0;
margin: 0;
display: grid;
gap: 1px;
border-radius: var(--space-sm);
overflow: hidden;
transition: box-shadow .3s ease;
&:focus-within {
box-shadow: 0 5px 20px -10px hsl(0 0% 0% / 50%);
}
}
input[type="range"] {
--track-height: .5ex;
--track-fill: 0%;
--thumb-size: 3ex;
--thumb-offset: -1.25ex;
--thumb-highlight-size: 0px;
display: block;
inline-size: 100%;
margin: 1ex 0;
appearance: none;
background: transparent;
outline-offset: 5px;
@media (hover: none) {
--thumb-size: 30px;
--thumb-offset: -14px;
}
&::-webkit-slider-runnable-track {
appearance: none;
block-size: var(--track-height);
border-radius: 5ex;
background:
linear-gradient(
to right,
transparent var(--track-fill),
var(--surface1) 0%
),
var(--brand-bg-gradient) fixed;
}
&::-moz-range-track {
appearance: none;
block-size: var(--track-height);
border-radius: 5ex;
background:
linear-gradient(
to right,
transparent var(--track-fill),
var(--surface1) 0%
),
var(--brand-bg-gradient) fixed;
}
&::-webkit-slider-thumb {
appearance: none;
cursor: ew-resize;
border: 3px solid var(--surface3);
block-size: var(--thumb-size);
inline-size: var(--thumb-size);
margin-block-start: var(--thumb-offset);
border-radius: 50%;
background: var(--brand-bg-gradient) fixed;
box-shadow: 0 0 0 var(--thumb-highlight-size) var(--thumb-highlight-color);
@media (--motionOK) {
transition: box-shadow .1s ease;
}
@nest .fieldset-item:focus-within & {
border-color: var(--surface2);
}
}
&::-moz-range-thumb {
appearance: none;
cursor: ew-resize;
border: 3px solid var(--surface3);
block-size: var(--thumb-size);
inline-size: var(--thumb-size);
margin-block-start: var(--thumb-offset);
border-radius: 50%;
background: var(--brand-bg-gradient) fixed;
box-shadow: 0 0 0 var(--thumb-highlight-size) var(--thumb-highlight-color);
@media (--motionOK) {
transition: box-shadow .1s ease;
}
@nest .fieldset-item:focus-within & {
border-color: var(--surface2);
}
}
&:is(:hover,:active) {
--thumb-highlight-size: 10px;
}
}
input[type="checkbox"] {
inline-size: var(--space-sm);
block-size: var(--space-sm);
margin: 0;
outline-offset: 5px;
accent-color: var(--brand);
position: relative;
transform-style: preserve-3d;
cursor: pointer;
&:hover::before {
--thumb-scale: 1;
}
@media (hover: none) {
inline-size: var(--space-md);
block-size: var(--space-md);
}
&::before {
--thumb-scale: .01;
--thumb-highlight-size: var(--space-xl);
content: "";
inline-size: var(--thumb-highlight-size);
block-size: var(--thumb-highlight-size);
clip-path: circle(50%);
position: absolute;
inset-block-start: 50%;
inset-inline-start: 50%;
background: var(--thumb-highlight-color);
transform-origin: center center;
transform:
translateX(calc(var(--isRTL) * 50%))
translateY(-50%)
translateZ(-1px)
scale(var(--thumb-scale))
;
will-change: transform;
@media (--motionOK) {
transition: transform .2s ease;
}
}
}
.fieldset-item {
background: var(--surface3);
transition: background .2s ease;
display: grid;
grid-template-columns: var(--space-lg) 1fr;
gap: var(--space-md);
padding-block: var(--space-sm);
padding-inline: var(--space-md);
@media (width >= 540px) {
grid-template-columns: var(--space-xxl) 1fr;
gap: var(--space-xs);
padding-block: var(--space-md);
padding-inline: 0 var(--space-xl);
}
&:focus-within {
background: var(--surface2);
& svg {
fill: white;
}
& picture {
clip-path: circle(50%);
background: var(--brand-bg-gradient) fixed;
}
}
& > :is(.input-stack, label) {
display: grid;
gap: var(--space-xs);
}
& > .input-stack > label {
display: contents;
}
& > picture {
block-size: var(--space-xl);
inline-size: var(--space-xl);
clip-path: circle(40%);
display: inline-grid;
place-content: center;
background: var(--surface3) fixed;
@media (--motionOK) {
transition: clip-path .3s ease;
}
}
& svg {
fill: var(--text2);
block-size: var(--space-md);
}
& > :is(picture, input[type="checkbox"]) {
place-self: center;
}
}
small {
color: var(--text2);
line-height: 1.5;
}
JS
const form = document.querySelector('form')
const sliders = document.querySelectorAll('input[type="range"]')
const rangeToPercent = slider => {
const max = slider.getAttribute('max') || 10
const percent = slider.value / max * 100
return `${parseInt(percent)}%`
}
sliders.forEach(slider => {
slider.style.setProperty('--track-fill', rangeToPercent(slider))
slider.addEventListener('input', e => {
e.target.style.setProperty('--track-fill', rangeToPercent(e.target))
})
})
form.addEventListener('input', e => {
const formData = Object.fromEntries(new FormData(form))
console.table(formData)
})