From a75d3b0175ee551fcf3e062a46e54b93d70ba86f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tom=C3=A1=C5=A1=20Ml=C3=A1dek?= <t@mldk.cz>
Date: Tue, 27 Feb 2024 18:27:58 +0100
Subject: [PATCH] style: stereo channel test on main audio page

---
 src/index.css                                 |  2 +-
 src/routes/audio/(channels)/+layout.svelte    | 35 +-----------
 .../(channels)/channels-stereo/+page.svelte   | 14 -----
 .../audio/(channels)/cycle-button.svelte      | 53 +++++++++++++++++++
 src/routes/audio/(channels)/speaker.svelte    | 27 +++++++++-
 .../audio/(channels)/stereo-test.svelte       | 34 ++++++++++++
 src/routes/audio/+page.svelte                 | 37 +++++++++----
 7 files changed, 143 insertions(+), 59 deletions(-)
 delete mode 100644 src/routes/audio/(channels)/channels-stereo/+page.svelte
 create mode 100644 src/routes/audio/(channels)/cycle-button.svelte
 create mode 100644 src/routes/audio/(channels)/stereo-test.svelte

diff --git a/src/index.css b/src/index.css
index 9a82237..232fced 100644
--- a/src/index.css
+++ b/src/index.css
@@ -21,7 +21,7 @@ a {
 }
 
 
-h1, h2, h3 {
+h1, h2, h3, h4 {
   margin-top: 0;
 }
 
diff --git a/src/routes/audio/(channels)/+layout.svelte b/src/routes/audio/(channels)/+layout.svelte
index 278afb2..fe422ed 100644
--- a/src/routes/audio/(channels)/+layout.svelte
+++ b/src/routes/audio/(channels)/+layout.svelte
@@ -1,45 +1,14 @@
 <script lang="ts">
-	import { onDestroy } from 'svelte';
+	import CycleButton from './cycle-button.svelte';
 
 	let channelsEl: HTMLDivElement;
-
-	let cycling = false;
-	async function cycleChannels() {
-		cycling = true;
-		const buttons = channelsEl.querySelectorAll('button');
-		buttons.forEach((button) => (button.disabled = true));
-		const channels = channelsEl.querySelectorAll('audio');
-		while (cycling) {
-			for (const channel of channels) {
-				await channel.play();
-				await new Promise((resolve) => {
-					channel.onended = resolve;
-				});
-				if (!cycling) {
-					break;
-				}
-			}
-		}
-		buttons.forEach((button) => (button.disabled = false));
-	}
-
-	function startCycle() {
-		cycling = !cycling;
-		if (cycling) {
-			cycleChannels();
-		}
-	}
-
-	onDestroy(() => {
-		cycling = false;
-	});
 </script>
 
 <div class="channels" bind:this={channelsEl}>
 	<slot />
 </div>
 <div class="controls">
-	<button on:click={startCycle}>Cycle all</button>
+	<CycleButton element={channelsEl} />
 </div>
 
 <style>
diff --git a/src/routes/audio/(channels)/channels-stereo/+page.svelte b/src/routes/audio/(channels)/channels-stereo/+page.svelte
deleted file mode 100644
index d3e7bc4..0000000
--- a/src/routes/audio/(channels)/channels-stereo/+page.svelte
+++ /dev/null
@@ -1,14 +0,0 @@
-<script lang="ts">
-	import Speaker from '../speaker.svelte';
-	import leftUrl from '@assets/audio/stereo/Left.mp3';
-	import centerUrl from '@assets/audio/stereo/Center.mp3';
-	import rightUrl from '@assets/audio/stereo/Right.mp3';
-</script>
-
-<div class="row">
-	<Speaker src={leftUrl} left>Left</Speaker>
-	<div class="center">
-		<Speaker src={centerUrl} center>Center</Speaker>
-	</div>
-	<Speaker src={rightUrl} right>Right</Speaker>
-</div>
diff --git a/src/routes/audio/(channels)/cycle-button.svelte b/src/routes/audio/(channels)/cycle-button.svelte
new file mode 100644
index 0000000..0078e6b
--- /dev/null
+++ b/src/routes/audio/(channels)/cycle-button.svelte
@@ -0,0 +1,53 @@
+<script lang="ts">
+	import { onDestroy } from 'svelte';
+
+	export let element: HTMLElement;
+
+	let cycling = false;
+	let currentChannel: HTMLAudioElement | undefined;
+	async function cycleChannels() {
+		cycling = true;
+		const buttons = element.querySelectorAll('button');
+		buttons.forEach((button) => (button.disabled = true));
+		const channels = element.querySelectorAll('audio');
+		while (cycling) {
+			for (const channel of channels) {
+				currentChannel = channel;
+				await channel.play();
+				await new Promise((resolve) => {
+					channel.onended = resolve;
+				});
+				if (!cycling) {
+					break;
+				}
+			}
+		}
+		buttons.forEach((button) => (button.disabled = false));
+	}
+
+	function onClick() {
+		cycling = !cycling;
+		if (cycling) {
+			cycleChannels();
+		} else {
+			if (currentChannel) {
+				currentChannel.pause();
+				currentChannel.currentTime = 0;
+			}
+		}
+	}
+
+	onDestroy(() => {
+		cycling = false;
+		currentChannel?.pause();
+	});
+</script>
+
+<button on:click={onClick}>
+	<i class="ti ti-refresh"></i>
+	{#if cycling}
+		Stop Cycling
+	{:else}
+		Cycle through
+	{/if}
+</button>
diff --git a/src/routes/audio/(channels)/speaker.svelte b/src/routes/audio/(channels)/speaker.svelte
index 919c724..f0ef3a9 100644
--- a/src/routes/audio/(channels)/speaker.svelte
+++ b/src/routes/audio/(channels)/speaker.svelte
@@ -4,6 +4,7 @@
 	export let center = false;
 	export let right = false;
 	export let lfe = false;
+	export let inline = false;
 
 	let currentTime = 0;
 	let paused = true;
@@ -19,6 +20,7 @@
 	class:right
 	class:center
 	class:lfe
+	class:inline
 	class:playing={!paused}
 	on:click={play}
 >
@@ -27,7 +29,7 @@
 	{:else}
 		<i class="ti ti-wave-sine"></i>
 	{/if}
-	<label><slot /></label>
+	<span><slot /></span>
 	<audio bind:currentTime bind:paused {src}></audio>
 </button>
 
@@ -68,5 +70,28 @@
 		transition:
 			transform 0.2s ease,
 			opacity 0.2s ease;
+
+		&.inline {
+			flex-direction: row;
+			align-items: center;
+			justify-content: center;
+			background: black;
+			border: 1px solid white;
+
+			opacity: 1;
+
+			& .ti {
+				font-size: 1.5em;
+			}
+
+			&.playing {
+				transform: scale(1);
+				opacity: 0.8;
+			}
+		}
+
+		&:active {
+			transform: scale(1);
+		}
 	}
 </style>
diff --git a/src/routes/audio/(channels)/stereo-test.svelte b/src/routes/audio/(channels)/stereo-test.svelte
new file mode 100644
index 0000000..55c5236
--- /dev/null
+++ b/src/routes/audio/(channels)/stereo-test.svelte
@@ -0,0 +1,34 @@
+<script lang="ts">
+	import leftUrl from '@assets/audio/stereo/Left.mp3';
+	import centerUrl from '@assets/audio/stereo/Center.mp3';
+	import rightUrl from '@assets/audio/stereo/Right.mp3';
+	import Speaker from './speaker.svelte';
+	import CycleButton from './cycle-button.svelte';
+
+	let speakersEl: HTMLElement;
+</script>
+
+<div class="test">
+	<div class="speakers" bind:this={speakersEl}>
+		<Speaker src={leftUrl} left inline>Left</Speaker>
+		<Speaker src={centerUrl} center inline>Center</Speaker>
+		<Speaker src={rightUrl} right inline>Right</Speaker>
+	</div>
+	<CycleButton element={speakersEl} />
+</div>
+
+<style>
+	.test {
+		display: flex;
+		gap: 1em;
+		align-items: center;
+		margin: 0.5em 0;
+	}
+
+	.speakers {
+		display: flex;
+		gap: 1em;
+		font-size: 1.25em;
+		margin-right: 1em;
+	}
+</style>
diff --git a/src/routes/audio/+page.svelte b/src/routes/audio/+page.svelte
index cd6e3d8..1bb0fd7 100644
--- a/src/routes/audio/+page.svelte
+++ b/src/routes/audio/+page.svelte
@@ -1,20 +1,37 @@
-<h3>Channel tests</h3>
-<ul>
-	<li><a href="channels-stereo">Stereo</a></li>
-	<li><a href="channels-5.1">5.1 Surround</a></li>
-	<li><a href="channels-7.1">7.1 Surround</a></li>
-</ul>
+<script lang="ts">
+	import StereoTest from './(channels)/stereo-test.svelte';
+</script>
+
+<article>
+	<h3>Channel tests</h3>
+	<h4>Stereo</h4>
+	<section>
+		<StereoTest />
+	</section>
+	<h4>Surround audio</h4>
+	<section>
+		<ul>
+			<li><a class="button" href="channels-5.1">5.1 Surround</a></li>
+			<li><a class="button" href="channels-7.1">7.1 Surround</a></li>
+		</ul>
+	</section>
+</article>
 
 <style>
+	h4 {
+		margin-bottom: 0;
+	}
+
 	ul {
 		list-style-type: none;
 		padding: 0;
 		margin: 0;
 
-		display: flex;
-		gap: 1rem;
+		display: inline-flex;
+		gap: 1em;
 	}
-	li {
-		margin-bottom: 10px;
+
+	section {
+		margin: 1em 0;
 	}
 </style>