Add 'automatic' dark theme, based on browser 'prefers-color-scheme: dark' media query

app/views/header.php

@@ -6,8 +6,12 @@
 	<meta http-equiv="cache-control" content="no-store" />
 	<meta http-equiv="Content-Security-Policy" content="script-src 'self'" />
 	<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1, user-scalable=1" />
-	<link rel="stylesheet" href="<?= $urlGenerator->assetUrl('css/app.min.css') ?>" />
-	<link rel="<?= $config->get('dark_theme') ? '' : 'alternate ' ?>stylesheet" title="Dark Theme" href="<?= $urlGenerator->assetUrl('css/dark.min.css') ?>" />
+	<?php if ($config->get('theme') !== 'auto'): ?>
+		<link rel="stylesheet" href="<?= $urlGenerator->assetUrl('css/app.min.css') ?>" />
+	<?php elseif ($config->get('theme') === 'auto'): ?>
+		<link rel="stylesheet" href="<?= $urlGenerator->assetUrl('css/dark-auto.min.css') ?>" />
+	<?php endif ?>
+	<link rel="<?= $config->get('theme') === 'dark' ? '' : 'alternate ' ?>stylesheet" title="Dark Theme" href="<?= $urlGenerator->assetUrl('css/dark.min.css') ?>" />
 	<link rel="icon" href="<?= $urlGenerator->assetUrl('images/icons/favicon.ico') ?>" />
 	<link rel="apple-touch-icon" sizes="57x57" href="<?= $urlGenerator->assetUrl('images/icons/apple-icon-57x57.png') ?>">
 	<link rel="apple-touch-icon" sizes="60x60" href="<?= $urlGenerator->assetUrl('images/icons/apple-icon-60x60.png') ?>">

public/css/dark.min.css

@@ -1 +1 @@
-a{color:#1978e2;text-shadow:var(--link-shadow)}a:hover{color:#9e34fd}body,legend,nav ul li a{background:#333;color:#eee}nav a:hover,nav li.selected a{border-color:#fff}header button{background:transparent}table{-webkit-box-shadow:none;box-shadow:none}td,th{border-color:#111}thead td,thead th{background:#333;color:#eee}tbody>tr:nth-child(2n){background:#555;color:#eee}tbody>tr:nth-child(odd){background:#333}footer,hr,legend{border-color:#ddd}small{color:#fff}input,input[type],select,textarea{border-color:#bbb;color:#bbb;background:#333;padding:.8em}button{background:#444;background:-webkit-gradient(linear,left top,left bottom,from(#666),color-stop(#555),color-stop(#444),color-stop(#555),to(#666));background:linear-gradient(#666,#555,#444,#555,#666);border-radius:.5em;margin:0;text-transform:none}button,button:hover{border-color:#ddd;color:#ddd}button:hover{background:#222;background:-webkit-gradient(linear,left top,left bottom,from(#444),color-stop(#333),color-stop(#222),color-stop(#333),to(#444));background:linear-gradient(#444,#333,#222,#333,#444)}button:active{background:#333;background:-webkit-gradient(linear,left top,left bottom,from(#333),to(#333));background:linear-gradient(#333,#333)}.media:hover button{background:-webkit-gradient(linear,left top,left bottom,from(#666),color-stop(#555),color-stop(#444),color-stop(#555),to(#666));background:linear-gradient(#666,#555,#444,#555,#666)}.media:hover button:hover{background:-webkit-gradient(linear,left top,left bottom,from(#444),color-stop(#555),color-stop(#666),color-stop(#555),to(#444));background:linear-gradient(#444,#555,#666,#555,#444)}.message,.static-message{text-shadow:var(--white-link-shadow)}.message.success,.static-message.success{background:#1f8454;border-color:#70dda9}.message.error,.static-message.error{border-color:#f3e6e6;background:#924949}.message.info,.static-message.info{border-color:#ffc;background:#bfbe3a}.invisible tbody>tr:nth-child(2n),.invisible tbody>tr:nth-child(odd),.invisible td,.invisible th,.invisible tr{background:transparent}#main-nav{border-bottom:.1rem solid #ddd}.tabs,.vertical-tabs{background:#333}.tabs>label,.vertical-tabs .tab label{background:#222;border:0;color:#eee}.vertical-tabs .tab label{width:100%}.tabs>label:hover,.vertical-tabs .tab>label:hover{background:#888}.tabs>label:active,.vertical-tabs .tab>label:active{background:#999}.tabs>[type=radio]:checked+label,.tabs>[type=radio]:checked+label+.content,.vertical-tabs [type=radio]:checked+label,.vertical-tabs [type=radio]:checked~.content{border:0;background:#666;color:#eee}.vertical-tabs{background:#222;border:1px solid #444}.vertical-tabs .tab{background:#666;border-bottom:1px solid #444}.streaming-logo{-webkit-filter:drop-shadow(0 0 2px #fff);filter:url('data:image/svg+xml;charset=utf-8,<svg xmlns="http://www.w3.org/2000/svg"><filter id="filter"><feGaussianBlur in="SourceAlpha" stdDeviation="2" /><feOffset dx="1" dy="1" result="offsetblur" /><feFlood flood-color="rgba(255,255,255,1)" /><feComposite in2="offsetblur" operator="in" /><feMerge><feMergeNode /><feMergeNode in="SourceGraphic" /></feMerge></filter></svg>#filter');filter:drop-shadow(0 0 2px #fff)}
+a{color:#1978e2;text-shadow:var(--link-shadow)}a:hover{color:#9e34fd}body,legend,nav ul li a{background:#333;color:#eee}nav a:hover,nav li.selected a{border-color:#fff}header button{background:transparent}table{box-shadow:none}td,th{border-color:#111}thead td,thead th{background:#333;color:#eee}tbody>tr:nth-child(2n){background:#555;color:#eee}tbody>tr:nth-child(odd){background:#333}footer,hr,legend{border-color:#ddd}small{color:#fff}input,input[type],select,textarea{border-color:#bbb;color:#bbb;background:#333;padding:.8em}button{background:#444;background:linear-gradient(#666,#555,#444,#555,#666);border-radius:.5em;margin:0;text-transform:none}button,button:hover{border-color:#ddd;color:#ddd}button:hover{background:#222;background:linear-gradient(#444,#333,#222,#333,#444)}button:active{background:#333;background:linear-gradient(#333,#333)}.media:hover button{background:linear-gradient(#666,#555,#444,#555,#666)}.media:hover button:hover{background:linear-gradient(#444,#555,#666,#555,#444)}.message,.static-message{text-shadow:var(--white-link-shadow)}.message.success,.static-message.success{background:#1f8454;border-color:#70dda9}.message.error,.static-message.error{border-color:#f3e6e6;background:#924949}.message.info,.static-message.info{border-color:#ffc;background:#bfbe3a}.invisible tbody>tr:nth-child(2n),.invisible tbody>tr:nth-child(odd),.invisible td,.invisible th,.invisible tr{background:transparent}#main-nav{border-bottom:.1rem solid #ddd}.tabs,.vertical-tabs{background:#333}.tabs>label,.vertical-tabs .tab label{background:#222;border:0;color:#eee}.vertical-tabs .tab label{width:100%}.tabs>label:hover,.vertical-tabs .tab>label:hover{background:#888}.tabs>label:active,.vertical-tabs .tab>label:active{background:#999}.tabs>[type=radio]:checked+label,.tabs>[type=radio]:checked+label+.content,.vertical-tabs [type=radio]:checked+label,.vertical-tabs [type=radio]:checked~.content{border:0;background:#666;color:#eee}.vertical-tabs{background:#222;border:1px solid #444}.vertical-tabs .tab{background:#666;border-bottom:1px solid #444}.streaming-logo{-webkit-filter:drop-shadow(0 0 2px #fff);filter:drop-shadow(0 0 2px #fff)}

public/css/src/dark-automatic.css

@@ -0,0 +1,5 @@
+@import './all.css';
+
+@media (prefers-color-scheme: dark) {
+	@import './dark-override.css';
+}

public/css/src/responsive.css

@@ -133,4 +133,5 @@
 		cursor: default;
 		color: #000;
 	}
-}
+}
+

public/package.json

@@ -10,13 +10,12 @@
 	},
 	"devDependencies": {
 		"@ampproject/rollup-plugin-closure-compiler": "^0.9.0",
-		"concurrently": "^4.0.1",
-		"cssnano": "^4.0.5",
-		"postcss-cachify": "^1.3.1",
-		"postcss-cssnext": "^3.0.0",
-		"postcss-import": "^12.0.0",
-		"rollup": "^1.11.3",
-		"rollup-plugin-closure-compiler-js": "^1.0.6",
+		"concurrently": "^4.1.1",
+		"cssnano": "^4.1.10",
+		"postcss": "^7.0.17",
+		"postcss-import": "^12.0.1",
+		"postcss-preset-env": "^6.7.0",
+		"rollup": "^1.16.7",
 		"watch": "^1.0.2"
 	}
 }

public/tools/css.js

@@ -4,46 +4,53 @@
 const fs = require('fs');
 const postcss = require('postcss');
 const atImport = require('postcss-import');
-const cssNext = require('postcss-cssnext');
+const cssNext = require('postcss-preset-env');
 const cssNano = require('cssnano');
 
-const css = fs.readFileSync('css/all.css', 'utf-8');
-const darkCss = fs.readFileSync('css/dark-override.css', 'utf-8');
+const css = fs.readFileSync('css/src/all.css', 'utf-8');
+const darkCss = fs.readFileSync('css/src/dark-override.css', 'utf-8');
 
-// Basic theme
-postcss()
-	.use(atImport())
-	.use(cssNext())
-	.use(cssNano({
-		autoprefixer: false,
-		colormin: false,
-		minifyFontValues: false,
-		options: {
-			sourcemap: false
-		}
-	}))
-	.process(css, {
-		from: 'css/all.css',
-		to: 'css/app.min.css'
-	}).then(result => {
-	fs.writeFileSync('css/app.min.css', result.css);
-});
+const minOptions = {
+	autoprefixer: false,
+	colormin: false,
+	minifyFontValues: false,
+	options: {
+		sourcemap: false
+	}
+};
 
-// Dark theme
-postcss()
-	.use(atImport())
-	.use(cssNext())
-	.use(cssNano({
-		autoprefixer: false,
-		colormin: false,
-		minifyFontValues: false,
-		options: {
-			sourcemap: false
-		}
-	}))
-	.process(darkCss, {
-		from: 'css/dark-override.css',
-		to: 'css/dark.min.css'
-	}).then(result => {
-	fs.writeFileSync('css/dark.min.css', result.css);
-});
+const processOptions = {
+	browser: '> 0.5%',
+	features: {
+		'custom-properties': true,
+	},
+	stage: 0,
+};
+
+(async () => {
+	// Basic theme
+	const light = await postcss()
+			.use(atImport())
+			.use(cssNext(processOptions))
+			.use(cssNano(minOptions))
+			.process(css, {
+				from: 'css/src/all.css',
+				to: 'css/app.min.css',
+			});
+	fs.writeFileSync('css/app.min.css', light);
+
+	// Dark theme
+	const dark = await postcss()
+		.use(atImport())
+		.use(cssNext(processOptions))
+		.use(cssNano(minOptions))
+		.process(darkCss, {
+			from: 'css/dark-override.css',
+			to: 'css/dark.min.css',
+		});
+	fs.writeFileSync('css/dark.min.css', dark);
+
+	const autoDarkCss = `${light} @media (prefers-color-scheme: dark) { ${dark} }`
+	fs.writeFileSync('css/dark-auto.min.css', autoDarkCss)
+
+})();

src/Types/Config.php

@@ -24,7 +24,7 @@ class Config extends AbstractType {
 
 	// Settings in config.toml
 	public $asset_path; // Path to public folder for urls
-	public $dark_theme;
+	public $dark_theme; /* Deprecated */
 	public $default_anime_list_path;
 	public $default_list;
 	public $default_manga_list_path;
@@ -33,6 +33,7 @@ class Config extends AbstractType {
 	public $secure_urls = TRUE;
 	public $show_anime_collection;
 	public $show_manga_collection;
+	public $theme;
 	public $whose_list;
 
 	// Application config

src/constants.php

@@ -152,12 +152,23 @@ const SETTINGS_MAP = [
 			'default' => 'Somebody',
 			'description' => 'Name of the owner of the list data.',
 		],
-		'dark_theme' => [
+		'theme' => [
+			'type' => 'select',
+			'title' => 'Theme',
+			'default' => 'auto',
+			'description' => 'Which color scheme to use?',
+			'options' => [
+				'Automatically match OS theme' => 'auto',
+				'Original Light Theme' => 'light',
+				'Dark Theme' => 'dark',
+			]
+		],
+		/* 'dark_theme' => [
 			'type' => 'boolean',
 			'title' => 'Use Dark Theme',
 			'default' => FALSE,
 			'description' => 'Use a darker background theme?',
-		],
+		],*/
 		'show_anime_collection' => [
 			'type' => 'boolean',
 			'title' => 'Show Anime Collection',