feat: navigation + keyboard, gamepad, camera tests

package.json

@@ -16,6 +16,7 @@
 	},
 	"devDependencies": {
 		"@tsconfig/svelte": "^5.0.2",
+		"@types/debug": "^4.1.12",
 		"@types/eslint": "8.56.0",
 		"@types/lodash": "^4.14.202",
 		"@typescript-eslint/eslint-plugin": "^6.0.0",
@@ -39,6 +40,8 @@
 		"@sveltejs/adapter-static": "^3.0.1",
 		"@sveltejs/kit": "^2.0.0",
 		"@sveltejs/vite-plugin-svelte": "^3.0.0",
+		"@tabler/icons-webfont": "^2.47.0",
+		"debug": "^4.3.4",
 		"lodash": "^4.17.21",
 		"normalize.css": "^8.0.1",
 		"svelte": "^4.2.7",

pnpm-lock.yaml

@@ -20,6 +20,12 @@ dependencies:
   '@sveltejs/vite-plugin-svelte':
     specifier: ^3.0.0
     version: 3.0.2(svelte@4.2.9)(vite@5.0.12)
+  '@tabler/icons-webfont':
+    specifier: ^2.47.0
+    version: 2.47.0
+  debug:
+    specifier: ^4.3.4
+    version: 4.3.4
   lodash:
     specifier: ^4.17.21
     version: 4.17.21
@@ -43,6 +49,9 @@ devDependencies:
   '@tsconfig/svelte':
     specifier: ^5.0.2
     version: 5.0.2
+  '@types/debug':
+    specifier: ^4.1.12
+    version: 4.1.12
   '@types/eslint':
     specifier: 8.56.0
     version: 8.56.0
@@ -87,7 +96,7 @@ devDependencies:
     version: 3.6.3(postcss@8.4.33)(svelte@4.2.9)
   wait-on:
     specifier: ^7.2.0
-    version: 7.2.0
+    version: 7.2.0(debug@4.3.4)
 
 packages:
 
@@ -674,6 +683,16 @@ packages:
       - supports-color
     dev: false
 
+  /@tabler/icons-webfont@2.47.0:
+    resolution: {integrity: sha512-yfV9zDal0iYDmyGz4BS9IlhaaMydtLdyOrY2UAZToP65sVWj7AFIi6symNzsoBaX867xAZWVHdKcocah0BfSog==}
+    dependencies:
+      '@tabler/icons': 2.47.0
+    dev: false
+
+  /@tabler/icons@2.47.0:
+    resolution: {integrity: sha512-4w5evLh+7FUUiA1GucvGj2ReX2TvOjEr4ejXdwL/bsjoSkof6r1gQmzqI+VHrE2CpJpB3al7bCTulOkFa/RcyA==}
+    dev: false
+
   /@tootallnate/quickjs-emscripten@0.23.0:
     resolution: {integrity: sha512-C5Mc6rdnsaJDjO3UpGW/CQTHtCKaYlScZTly4JIu97Jxo/odCiH0ITnDXSJPTOrEKk/ycSZ0AOgTmkDtkOsvIA==}
     dev: true
@@ -686,6 +705,12 @@ packages:
     resolution: {integrity: sha512-4Kh9a6B2bQciAhf7FSuMRRkUWecJgJu9nPnx3yzpsfXX/c50REIqpHY4C82bXP90qrLtXtkDxTZosYO3UpOwlA==}
     dev: false
 
+  /@types/debug@4.1.12:
+    resolution: {integrity: sha512-vIChWdVG3LG1SMxEvI/AK+FWJthlrqlTu7fbrlywTkkaONwk/UAGaULXRlf8vkzFBLVm0zkMdCquhL5aOjhXPQ==}
+    dependencies:
+      '@types/ms': 0.7.34
+    dev: true
+
   /@types/eslint@8.56.0:
     resolution: {integrity: sha512-FlsN0p4FhuYRjIxpbdXovvHQhtlG05O1GG/RNWvdAxTboR438IOTwmrY/vLA+Xfgg06BTkP045M3vpFwTMv1dg==}
     dependencies:
@@ -704,6 +729,10 @@ packages:
     resolution: {integrity: sha512-OvlIYQK9tNneDlS0VN54LLd5uiPCBOp7gS5Z0f1mjoJYBrtStzgmJBxONW3U6OZqdtNzZPmn9BS/7WI7BFFcFQ==}
     dev: true
 
+  /@types/ms@0.7.34:
+    resolution: {integrity: sha512-nG96G3Wp6acyAgJqGasjODb+acrI7KltPiRxzHPXnP3NgI28bpQDRv53olbqGXbfcgF5aiiHmO3xpwEpS5Ld9g==}
+    dev: true
+
   /@types/node@20.11.19:
     resolution: {integrity: sha512-7xMnVEcZFu0DikYjWOlRq7NTPETrm7teqUT2WkQjrTIkEgUyyGdWsj/Zg8bEJt5TNklzbPD1X3fqfsHw3SpapQ==}
     requiresBuild: true
@@ -947,10 +976,10 @@ packages:
     resolution: {integrity: sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==}
     dev: true
 
-  /axios@1.6.7:
+  /axios@1.6.7(debug@4.3.4):
     resolution: {integrity: sha512-/hDJGff6/c7u0hDkvkGxR/oy6CbCs8ziCsC7SqmhjfozqiJGc8Z11wrv9z9lYfY4K8l+H9TpjcMDX0xOZmx+RA==}
     dependencies:
-      follow-redirects: 1.15.5
+      follow-redirects: 1.15.5(debug@4.3.4)
       form-data: 4.0.0
       proxy-from-env: 1.1.0
     transitivePeerDependencies:
@@ -1618,7 +1647,7 @@ packages:
     resolution: {integrity: sha512-36yxDn5H7OFZQla0/jFJmbIKTdZAQHngCedGxiMmpNfEZM0sdEeT+WczLQrjK6D7o2aiyLYDnkw0R3JK0Qv1RQ==}
     dev: true
 
-  /follow-redirects@1.15.5:
+  /follow-redirects@1.15.5(debug@4.3.4):
     resolution: {integrity: sha512-vSFWUON1B+yAw1VN4xMfxgn5fTUiaOzAJCKBwIIgT/+7CuGy9+r+5gITvP62j3RmaD5Ph65UaERdOSRGUzZtgw==}
     engines: {node: '>=4.0'}
     peerDependencies:
@@ -1626,6 +1655,8 @@ packages:
     peerDependenciesMeta:
       debug:
         optional: true
+    dependencies:
+      debug: 4.3.4
     dev: true
 
   /form-data@4.0.0:
@@ -2880,12 +2911,12 @@ packages:
       vite: 5.0.12
     dev: false
 
-  /wait-on@7.2.0:
+  /wait-on@7.2.0(debug@4.3.4):
     resolution: {integrity: sha512-wCQcHkRazgjG5XoAq9jbTMLpNIjoSlZslrJ2+N9MxDsGEv1HnFoVjOCexL0ESva7Y9cu350j+DWADdk54s4AFQ==}
     engines: {node: '>=12.0.0'}
     hasBin: true
     dependencies:
-      axios: 1.6.7
+      axios: 1.6.7(debug@4.3.4)
       joi: 17.12.1
       lodash: 4.17.21
       minimist: 1.2.8

src/index.css

@@ -9,9 +9,45 @@ body, html {
   background-color: black;
 
   font-family: 'B612', 'IBM Plex Sans', 'Helvetica Neue', Arial, sans-serif;
-  font-size: 1.5vw;
+  font-size: min(1.5vw, 1.5vh);
 }
 
 * {
   box-sizing: border-box;
 }
+
+a {
+  color: white;
+}
+
+
+h1, h2, h3 {
+  margin-top: 0;
+}
+
+button, .button {
+  display: inline-flex;
+  align-items: center;
+  gap: 0.25em;
+  text-decoration: none;
+  border: 1px solid white;
+  cursor: pointer;
+
+  padding: 0.25em 0.5em;
+  border-radius: 0.25em;
+
+  background: black;
+  color: white;
+}
+
+select {
+  background: black;
+  color: white;
+  padding: 0.25em 0.5em;
+  border-radius: 0.25em;
+  border: 1px solid white;
+
+  &:disabled {
+    opacity: 0.7;
+  }
+}

src/lib/BackgroundGrid.svelte

@@ -16,7 +16,8 @@
 	let verticalMargin = MARGIN_SIZE;
 	let unloaded = true;
 
-	let transparent = false;
+	export let transparent = false;
+	export let subdued = false;
 
 	function updateCounts() {
 		const gridWidth = window.innerWidth - MARGIN_SIZE;
@@ -72,6 +73,7 @@
 	class="background"
 	class:unloaded
 	class:transparent
+	class:subdued
 	class:even-vertical={verticalCount % 2 === 0}
 	style="--horizontal-count: {horizontalCount};
 					 --vertical-count: {verticalCount};
@@ -266,6 +268,13 @@
 		}
 	}
 
+	.background.subdued {
+		& .edge,
+		& .corner {
+			opacity: 0.33;
+		}
+	}
+
 	.grid {
 		display: grid;
 		grid-template-columns: repeat(var(--horizontal-count), var(--block-size));

src/lib/Spinner.svelte

@@ -0,0 +1,22 @@
+<script>
+	import { IconSpiral } from '@tabler/icons-svelte';
+	export let size = 32;
+</script>
+
+<div class="spinner"><IconSpiral {size} class="spinner-icon" /></div>
+
+<style>
+	.spinner {
+		text-align: center;
+	}
+
+	:global(.spinner-icon) {
+		animation: spin 1s linear infinite;
+	}
+
+	@keyframes spin {
+		100% {
+			transform: rotate(360deg);
+		}
+	}
+</style>

src/lib/TestCard.svelte

@@ -4,7 +4,10 @@
 	import Axes from '$lib/Axes.svelte';
 	import ColorGradient from '$lib/ColorGradient.svelte';
 	import BrightnessGradient from '$lib/BrightnessGradient.svelte';
-	import { onMount } from 'svelte';
+	import { createEventDispatcher } from 'svelte';
+	const dispatch = createEventDispatcher<{ focus: void }>();
+
+	export let full = false;
 
 	let sizes = {
 		blockSize: 64,
@@ -20,16 +23,12 @@
 	$: circleBlocks =
 		2 * Math.floor((Math.min(sizes.horizontalCount, sizes.verticalCount) * 0.66) / 2) +
 		(sizes.horizontalCount % 2);
-
-	onMount(() => {
-		window.addEventListener('dblclick', () => {
-			document.body.requestFullscreen();
-		});
-	});
 </script>
 
+<!-- svelte-ignore a11y-no-static-element-interactions -->
 <div
 	class="test-card"
+	class:full
 	style="--block-size: {sizes.blockSize}px;
 				 --horizontal-margin: {sizes.horizontalMargin}px;
 				 --vertical-margin: {sizes.verticalMargin}px;
@@ -37,9 +36,13 @@
          --column-width: {columnWidth};
          --column-height: {columnHeight};
          --left-column: {leftColumn};"
+	on:dblclick={() => dispatch('focus') && document.body.requestFullscreen()}
 >
-	<BackgroundGrid on:change={(ev) => (sizes = ev.detail)} />
+	<BackgroundGrid on:change={(ev) => (sizes = ev.detail)} subdued={!full} />
+
+	<div class="axes">
 		<Axes />
+	</div>
 
 	<div class="outer"></div>
 	<div class="inner"></div>
@@ -137,4 +140,13 @@
 			flex-grow: 1;
 		}
 	}
+
+	.test-card:not(.full) {
+		& .info,
+		& .column,
+		& .axes,
+		& .inner {
+			display: none;
+		}
+	}
 </style>

src/routes/+layout.svelte

@@ -0,0 +1,77 @@
+<script lang="ts">
+	import 'normalize.css/normalize.css';
+	import '@fontsource/b612';
+	import '@fontsource/b612/700.css';
+	import '@tabler/icons-webfont/tabler-icons.css';
+	import '../index.css';
+	import TestCard from '$lib/TestCard.svelte';
+	import { page } from '$app/stores';
+	import { onMount } from 'svelte';
+	import { goto } from '$app/navigation';
+
+	let idleTimeout: NodeJS.Timeout | undefined;
+	onMount(() => {
+		window.addEventListener('mousemove', () => {
+			clearTimeout(idleTimeout);
+			document.body.classList.remove('idle');
+			idleTimeout = setTimeout(() => {
+				document.body.classList.add('idle');
+			}, 3000);
+		});
+	});
+
+	$: onlyCard = $page.url.pathname === '/card';
+</script>
+
+<TestCard full={onlyCard} on:focus={() => goto('/card')} />
+<main class:content={!onlyCard} class:sub={$page.url.pathname !== '/' && !onlyCard}>
+	<a href="/" class="button button-back"><i class="ti ti-arrow-back" />Back</a>
+	<slot />
+</main>
+
+<style>
+	main.content {
+		position: absolute;
+		top: 50%;
+		left: 50%;
+		transform: translate(-50%, -50%);
+		background: rgba(0, 0, 0, 0.8);
+		border-radius: 0.5rem;
+		border: 1px solid white;
+
+		padding: 1rem;
+
+		display: flex;
+		flex-direction: column;
+	}
+
+	main.sub {
+		height: 90vh;
+		width: 90vw;
+	}
+
+	.button-back {
+		position: absolute;
+		top: 1rem;
+		right: 1rem;
+
+		opacity: 0.66;
+		transition: opacity 0.3s;
+		&:hover {
+			opacity: 1;
+		}
+	}
+
+	main:not(.sub) .button-back {
+		display: none;
+	}
+
+	:global(.hide-idle) {
+		transition: opacity 1s;
+		opacity: 1;
+	}
+
+	:global(body.idle .hide-idle) {
+		opacity: 0;
+	}
+</style>

src/routes/+page.svelte

@@ -1,9 +1,72 @@
 <script>
-	import 'normalize.css/normalize.css';
-	import '@fontsource/b612';
-	import '@fontsource/b612/700.css';
-	import '../index.css';
-	import TestCard from '$lib/TestCard.svelte';
 </script>
 
-<TestCard />
+<nav>
+	<h1>Universal Test Card</h1>
+
+	<div class="options">
+		<a href="card">
+			<i class="ti ti-device-desktop"></i>
+			Screen
+		</a>
+		<a href="audio" class="disabled">
+			<i class="ti ti-volume"></i>
+			Audio
+		</a>
+		<a href="keyboard">
+			<i class="ti ti-keyboard"></i>
+			Keyboard
+		</a>
+		<a href="mouse" class="disabled">
+			<i class="ti ti-mouse"></i>
+			Mouse
+		</a>
+		<a href="gamepad">
+			<i class="ti ti-device-gamepad"></i>
+			Gamepad
+		</a>
+		<a href="camera">
+			<i class="ti ti-camera"></i>
+			Camera
+		</a>
+		<a href="microphone" class="disabled">
+			<i class="ti ti-microphone"></i>
+			Microphone
+		</a>
+		<a href="sensors" class="disabled">
+			<i class="ti ti-cpu-2"></i>
+			Sensors
+		</a>
+	</div>
+</nav>
+
+<style>
+	h1 {
+		text-align: center;
+		font-size: 3rem;
+		margin: 1rem;
+		text-transform: uppercase;
+	}
+
+	.options {
+		display: flex;
+		justify-content: space-evenly;
+		align-items: center;
+		gap: 2em;
+
+		& a {
+			text-align: center;
+			text-decoration: none;
+
+			&.disabled {
+				pointer-events: none;
+				opacity: 0.5;
+			}
+		}
+
+		& .ti {
+			display: block;
+			font-size: 3rem;
+		}
+	}
+</style>

src/routes/camera/+page.svelte

@@ -0,0 +1,259 @@
+<script lang="ts">
+	import { onDestroy, onMount } from 'svelte';
+	import { browser } from '$app/environment';
+	import debug from 'debug';
+	const dbg = debug('app:camera');
+
+	let video: HTMLVideoElement;
+	let devices: MediaDeviceInfo[] = [];
+	let currentDevice: string | undefined;
+
+	let requestResolution: [number, number] | 'auto' = 'auto';
+	let requestFramerate: number | 'auto' = 'auto';
+	let deviceInfo: {
+		resolution?: string;
+		frameRate?: number;
+	} = {};
+	let snapshot: string | undefined;
+	let flipped = false;
+
+	$: dbg('devices %O', devices);
+	$: dbg('currentDevice %s', currentDevice);
+
+	onMount(() => {
+		refreshDevices();
+		video.addEventListener('playing', () => {
+			if (browser && video?.srcObject instanceof MediaStream) {
+				deviceInfo = {
+					resolution: `${video.videoWidth}x${video.videoHeight}`,
+					frameRate: video?.srcObject?.getVideoTracks()[0]?.getSettings().frameRate
+				};
+			}
+		});
+	});
+
+	onDestroy(() => {
+		if (browser && video?.srcObject instanceof MediaStream) {
+			video.srcObject.getTracks().forEach((t) => t.stop());
+		}
+	});
+
+	async function refreshDevices() {
+		devices = (await navigator.mediaDevices.enumerateDevices()).filter(
+			(d) => d.kind === 'videoinput'
+		);
+		if (!currentDevice) {
+			currentDevice = devices[0]?.deviceId;
+		}
+	}
+
+	$: if (currentDevice) {
+		navigator.mediaDevices
+			.getUserMedia({
+				video: {
+					deviceId: currentDevice,
+					width: requestResolution === 'auto' ? undefined : requestResolution[0],
+					height: requestResolution === 'auto' ? undefined : requestResolution[1],
+					frameRate: requestFramerate === 'auto' ? undefined : requestFramerate
+				}
+			})
+			.then((stream) => {
+				video.srcObject = stream;
+				refreshDevices();
+			});
+	}
+
+	async function takeSnapshot() {
+		const canvas = document.createElement('canvas');
+		canvas.width = video.videoWidth;
+		canvas.height = video.videoHeight;
+		const ctx = canvas.getContext('2d');
+		if (!ctx) return;
+		if (flipped) {
+			ctx.scale(-1, 1);
+			ctx.translate(-canvas.width, 0);
+		}
+		ctx.drawImage(video, 0, 0, canvas.width, canvas.height);
+		snapshot = canvas.toDataURL('image/png');
+	}
+</script>
+
+<h2><i class="ti ti-camera"></i> Camera test</h2>
+
+<div class="controls">
+	<label>
+		Device
+		<select bind:value={currentDevice} disabled={!devices.length}>
+			{#each devices as device}
+				<option value={device.deviceId}>{device.label || '???'}</option>
+			{:else}
+				<option>No camera found</option>
+			{/each}
+		</select>
+	</label>
+	<button on:click={refreshDevices}>
+		<i class="ti ti-refresh"></i>
+		Refresh
+	</button>
+	<div class="separator"></div>
+	<label>
+		Resolution
+		<select bind:value={requestResolution}>
+			<option value="auto">Auto</option>
+			<option value={[4096, 2160]}>4096x2160</option>
+			<option value={[3840, 2160]}>3840x2160</option>
+			<option value={[1920, 1080]}>1920x1080</option>
+			<option value={[1280, 720]}>1280x720</option>
+			<option value={[640, 480]}>640x480</option>
+			<option value={[320, 240]}>320x240</option>
+		</select>
+	</label>
+	<label>
+		Frame rate
+		<select bind:value={requestFramerate}>
+			<option value="auto">Auto</option>
+			<option value={120}>120 fps</option>
+			<option value={60}>60 fps</option>
+			<option value={30}>30 fps</option>
+			<option value={15}>15 fps</option>
+			<option value={10}>10 fps</option>
+			<option value={5}>5 fps</option>
+		</select>
+	</label>
+</div>
+
+<div class="display" class:snapshot={Boolean(snapshot)}>
+	<!-- svelte-ignore a11y-media-has-caption -->
+	<video class:flipped bind:this={video} autoplay class:unloaded={!currentDevice}></video>
+	{#if snapshot}
+		<!-- svelte-ignore a11y-missing-attribute -->
+		<!--suppress HtmlRequiredAltAttribute -->
+		<img src={snapshot} />
+		<button on:click={() => (snapshot = undefined)}><i class="ti ti-x"></i></button>
+	{/if}
+</div>
+
+<footer>
+	{#if !currentDevice}
+		<span class="subdued">No camera selected</span>
+	{:else}
+		<ul>
+			{#key currentDevice}
+				<li>
+					Resolution: <strong>{deviceInfo.resolution || '???'}</strong>
+				</li>
+				<li>
+					Frame rate: <strong>{deviceInfo.frameRate || '???'}</strong>
+				</li>
+			{/key}
+		</ul>
+		<div class="controls">
+			<button on:click={takeSnapshot}>
+				<i class="ti ti-camera"></i>
+				Take picture
+			</button>
+			<button on:click={() => (flipped = !flipped)}>
+				<i class="ti ti-flip-vertical"></i>
+				{#if flipped}
+					Unflip image
+				{:else}
+					Flip image
+				{/if}
+			</button>
+		</div>
+	{/if}
+</footer>
+
+<style>
+	.controls {
+		display: flex;
+		align-items: end;
+		justify-content: stretch;
+		gap: 1em;
+
+		& label:first-child {
+			flex-grow: 1;
+			min-width: 0;
+		}
+	}
+
+	select {
+		background: black;
+		color: white;
+		padding: 0.25em 0.5em;
+		border-radius: 0.25em;
+		border: 1px solid white;
+	}
+
+	label {
+		display: flex;
+		flex-direction: column;
+		gap: 0.2em;
+
+		font-size: 0.8em;
+		& select {
+			font-size: initial;
+		}
+	}
+
+	.display {
+		position: relative;
+		display: flex;
+		flex-direction: column;
+		min-height: 0;
+		flex-grow: 1;
+		justify-content: center;
+
+		& img {
+			object-fit: contain;
+		}
+
+		& button {
+			position: absolute;
+			top: 1em;
+			right: 1em;
+		}
+
+		&.snapshot {
+			& video {
+				display: none;
+			}
+		}
+	}
+
+	video {
+		min-width: 0;
+		min-height: 0;
+		max-width: 100%;
+		max-height: 100%;
+
+		margin: 1em 0;
+
+		&.unloaded {
+			background: repeating-linear-gradient(45deg, gray, gray 20px, darkgray 20px, darkgray 40px);
+			flex-grow: 1;
+		}
+
+		&.flipped {
+			transform: scaleX(-1);
+		}
+	}
+
+	footer {
+		display: flex;
+		justify-content: space-between;
+		align-items: center;
+	}
+
+	ul {
+		list-style: none;
+		margin: 0;
+		padding: 0;
+		display: inline-flex;
+		gap: 1rem;
+	}
+
+	.subdued {
+		opacity: 0.8;
+	}
+</style>

src/routes/card/+page.svelte

@@ -0,0 +1,25 @@
+<script>
+</script>
+
+<a href="/" class="hide-idle"><i class="ti ti-arrow-back"></i> Back</a>
+
+<style>
+	a {
+		position: absolute;
+		top: 2rem;
+		right: 2rem;
+
+		background: black;
+		border: 1px solid white;
+		border-radius: 0.2em;
+		padding: 0.5em 1em;
+
+		box-shadow: 0 0 0.5em rgba(255, 255, 255, 0.5);
+
+		display: flex;
+		gap: 0.5em;
+		align-items: center;
+
+		text-decoration: none;
+	}
+</style>

src/routes/gamepad/+page.svelte

@@ -0,0 +1,163 @@
+<script lang="ts">
+	import { onMount } from 'svelte';
+	import { browser } from '$app/environment';
+	import debug from 'debug';
+	const dbg = debug('app:camera');
+
+	let gamepads: Gamepad[] = [];
+	let currentGamepad: Gamepad | undefined;
+	let buttons: GamepadButton[] = [];
+	let axes: number[] = [];
+
+	$: {
+		if (currentGamepad) {
+			function update() {
+				buttons = currentGamepad?.buttons.concat() || [];
+				axes = currentGamepad?.axes.concat() || [];
+				requestAnimationFrame(update);
+			}
+			update();
+		}
+	}
+
+	$: dbg('Gamepads %O', gamepads);
+	$: dbg('Current gamepad %s', currentGamepad);
+
+	$: currentGamepad?.vibrationActuator?.playEffect('dual-rumble', {
+		duration: 1000
+	});
+
+	onMount(() => {
+		refreshGamepads();
+	});
+
+	async function refreshGamepads() {
+		gamepads = browser ? (navigator.getGamepads().filter(Boolean) as Gamepad[]) : [];
+		currentGamepad = gamepads[0];
+	}
+
+	onMount(() => {
+		window.addEventListener('gamepadconnected', (e) => {
+			dbg('Gamepad connected', e);
+			refreshGamepads();
+		});
+
+		window.addEventListener('gamepaddisconnected', (e) => {
+			dbg('Gamepad disconnected', e);
+			refreshGamepads();
+		});
+	});
+</script>
+
+<h2><i class="ti ti-device-gamepad"></i> Gamepad & Joystick Tests</h2>
+<div class="controls">
+	<label>
+		Device
+		<select disabled={!gamepads.length}>
+			{#each gamepads as gamepad}
+				<option value={gamepad.index}>{gamepad.id}</option>
+			{:else}
+				<option>No gamepads detected. (Try pressing a button)</option>
+			{/each}
+		</select>
+	</label>
+	<button on:click={refreshGamepads}>
+		<i class="ti ti-refresh"></i>
+		Refresh
+	</button>
+</div>
+
+{#if currentGamepad}
+	<section>
+		<h3>Buttons</h3>
+		<ul class="buttons">
+			{#each buttons as button, i}
+				<li class:pressed={button.pressed}>{i}</li>
+			{/each}
+		</ul>
+	</section>
+	<section>
+		<h3>Axes</h3>
+		<div class="axes">
+			{#each axes as axis, i (i)}
+				<div class="axis">
+					<div>
+						<span>{i}</span>
+						<progress value={axis + 1} max="2"></progress>
+						<span>{axis.toFixed(2)}</span>
+					</div>
+				</div>
+			{/each}
+		</div>
+	</section>
+{/if}
+
+<style>
+	.controls {
+		display: flex;
+		align-items: end;
+		justify-content: stretch;
+		gap: 1em;
+
+		& label:first-child {
+			flex-grow: 1;
+			min-width: 0;
+		}
+	}
+
+	label {
+		display: flex;
+		flex-direction: column;
+		gap: 0.2em;
+
+		font-size: 0.8em;
+		& select {
+			font-size: initial;
+		}
+	}
+
+	h3 {
+		margin-top: 2em;
+		text-align: center;
+	}
+
+	.buttons {
+		list-style: none;
+		margin: 0;
+		padding: 0;
+
+		display: flex;
+		flex-wrap: wrap;
+		justify-content: space-evenly;
+
+		& li {
+			display: block;
+			width: 2em;
+			height: 2em;
+			border: 1px solid white;
+			border-radius: 0.75em;
+			text-align: center;
+			line-height: 2em;
+
+			&.pressed {
+				background-color: darkred;
+				color: white;
+			}
+		}
+	}
+
+	.axes {
+		display: grid;
+		grid-template-columns: repeat(2, 1fr);
+		gap: 0.5em 2em;
+
+		& .axis div {
+			display: flex;
+			gap: 0.25em;
+
+			& progress {
+				flex-grow: 1;
+			}
+		}
+	}
+</style>

src/routes/keyboard/+page.svelte

@@ -0,0 +1,59 @@
+<script lang="ts">
+	import { onMount } from 'svelte';
+
+	let key: string;
+	let code: string;
+	let pressedKeys: string[] = [];
+	onMount(() => {
+		document.addEventListener('keydown', (event) => {
+			key = event.key;
+			code = event.code;
+			pressedKeys = [...pressedKeys, event.key];
+			pressedKeys = pressedKeys.slice(-50);
+		});
+	});
+</script>
+
+<h2>Keyboard testing</h2>
+<p>Press a key on the keyboard to see the event object and the key code.</p>
+<div class="current">
+	{#if key}
+		<span>{key}</span>
+	{/if}
+	{#if code}
+		<span class="code">({code})</span>
+	{/if}
+</div>
+
+<p>Pressed keys:</p>
+<ul>
+	{#each pressedKeys as key}
+		<li>{key}</li>
+	{/each}
+</ul>
+
+<style>
+	.current {
+		display: flex;
+	}
+
+	.code {
+		margin-left: 1em;
+		opacity: 0.8;
+	}
+
+	ul {
+		list-style: none;
+		padding: 0;
+
+		display: flex;
+		flex-wrap: wrap;
+		gap: 0.2em;
+	}
+
+	li {
+		margin: 0;
+		padding: 0;
+		display: inline-block;
+	}
+</style>