Merge reset.css into core.css, and add settings page for specifying dark mode preferences

config/apache/standardebooks.org.conf

@@ -138,6 +138,14 @@ Define domain standardebooks.org
 		ProxySet connectiontimeout=5 timeout=240
 	</Proxy>
 
+	# In RewriteCond, RewriteRule gets evaluated BEFORE RewriteCond, so $1 refers to the first
+	# match in RewriteRule
+	# Rewrite POST /some/url -> POST /some/url/post.php
+	RewriteCond %{REQUEST_METHOD} ^POST$
+	RewriteCond %{DOCUMENT_ROOT}/$1/ -d
+	RewriteCond %{DOCUMENT_ROOT}/$1/post.php -f
+	RewriteRule ^([^\.]+)$				$1/post.php [L]
+
 	# In case of 404, serve the 404 page specified by ErrorDocument, not the default FPM error page.
 	# Note that we can't use `ProxyErrorOverride on` because that catches ALL 4xx and 5xx HTTP headers
 	# and serves the default Apache page for them.

config/apache/standardebooks.test.conf

@@ -137,6 +137,14 @@ Define domain standardebooks.test
 		ProxySet connectiontimeout=5 timeout=240
 	</Proxy>
 
+	# In RewriteCond, RewriteRule gets evaluated BEFORE RewriteCond, so $1 refers to the first
+	# match in RewriteRule
+	# Rewrite POST /some/url -> POST /some/url/post.php
+	RewriteCond %{REQUEST_METHOD} ^POST$
+	RewriteCond %{DOCUMENT_ROOT}/$1/ -d
+	RewriteCond %{DOCUMENT_ROOT}/$1/post.php -f
+	RewriteRule ^([^\.]+)$				$1/post.php [L]
+
 	# In case of 404, serve the 404 page specified by ErrorDocument, not the default FPM error page.
 	# Note that we can't use `ProxyErrorOverride on` because that catches ALL 4xx and 5xx HTTP headers
 	# and serves the default Apache page for them.

templates/Footer.php

@@ -12,6 +12,9 @@
 			<li>
 				<a href="/donate">Donate</a>
 			</li>
+			<li>
+				<a href="/settings">Settings</a>
+			</li>
 			<li>
 				<a href="https://github.com/standardebooks">GitHub</a>
 			</li>

templates/Header.php

@@ -16,6 +16,8 @@ if(!isset($manual)){
 	$manual = false;
 }
 
+$colorScheme = $_COOKIE['color-scheme'] ?? 'auto';
+
 # We hash with crc32 because it's faster than md5 and "good enough" for this simple cache-busting use case
 
 header('content-type: application/xhtml+xml');
@@ -28,8 +30,10 @@ print("\n");
 	<title><? if($title != ''){ ?><?= Formatter::ToPlainText($title) ?> - <? } ?>Standard Ebooks: Free and liberated ebooks, carefully produced for the true book lover.</title>
 	<? if($description != ''){ ?><meta content="<?= Formatter::ToPlainText($description) ?>" name="description"/><? } ?>
 	<meta content="width=device-width, initial-scale=1" name="viewport"/>
-	<link href="/css/reset.css" media="screen" rel="stylesheet" type="text/css"/>
 	<link href="/css/core.css?version=<?= crc32(file_get_contents(WEB_ROOT . '/css/core.css')) ?>" media="screen" rel="stylesheet" type="text/css"/>
+	<? if($colorScheme == 'auto' || $colorScheme == 'dark'){ ?>
+	<link href="/css/dark.css?version=<?= crc32(file_get_contents(WEB_ROOT . '/css/dark.css')) ?>" media="screen<? if($colorScheme == 'auto'){ ?> and (prefers-color-scheme: dark)<? } ?>" rel="stylesheet" type="text/css"/>
+	<? } ?>
 	<? if($manual){ ?>
 	<link href="/css/manual.css?version=<?= crc32(file_get_contents(WEB_ROOT . '/css/manual.css')) ?>" media="screen" rel="stylesheet" type="text/css"/>
 	<? } ?>

www/css/core.css

@@ -95,22 +95,85 @@
 	--link-highlight: var(--button);
 }
 
-@media(prefers-color-scheme: dark){
+/* Start CSS reset */
-	:root{
+/* Dont @import this, to prevent FOUC */
-		--body-text: var(--dark-body-text);
+html{
-		--header: var(--dark-header);
+	margin: 0;
-		--button: var(--dark-button);
+	padding: 0;
-		--button-highlight: var(--dark-button-highlight);
+	-ms-text-size-adjust: 100%;
-		--border: var(--dark-border);
+	-webkit-text-size-adjust: 100%;
-		--sub-text: var(--dark-sub-text);
-		--body-bg: var(--dark-body-bg);
-		--input-hover: var(--dark-input-hover);
-		--input-border: var(--dark-input-border);
-		--input-outline: var(--dark-input-outline);
-		--link-highlight: var(--button-highlight); /* lighter looks better in dark mode */
 }
+
+body{
+	margin: 0;
+	padding: 0;
 }
 
+a{
+	outline: 0;
+}
+
+blockquote{
+	margin: 0;
+	quotes: none;
+}
+
+p{
+	margin: 0;
+}
+
+ol{
+	margin: 0;
+	padding: 0;
+}
+
+ul{
+	margin: 0;
+	padding: 0;
+}
+
+h1{
+	margin: 0;
+}
+
+h2{
+	margin: 0;
+}
+
+h3{
+	margin: 0;
+}
+
+h4{
+	margin: 0;
+}
+
+h5{
+	margin: 0;
+}
+
+h6{
+	margin: 0;
+}
+
+figure{
+	margin: 0;
+}
+
+table {
+	border-collapse: collapse;
+	border-spacing: 0;
+}
+
+q{
+	quotes: none;
+}
+
+button::-moz-focus-inner{
+	border: 0;
+}
+/* End reset */
+
 html{
 	color: var(--body-text);
 	font-family: "Crimson Pro", Georgia, serif;
@@ -539,6 +602,11 @@ form button{
 	hyphens: none;
 }
 
+form button{
+	line-height: 1;
+	margin-left: 1rem;
+}
+
 .ebooks nav li.highlighted a:focus,
 a.button:focus,
 input[type="search"]:focus,
@@ -1480,6 +1548,10 @@ select[multiple] option:last-child{
 	margin-bottom: 1rem; /* needed for firefox */
 }
 
+form[action="/settings"]{
+	margin: 0 1rem;
+}
+
 form[action="/ebooks"] label{
 	max-width: 100%;
 }
@@ -1932,7 +2004,7 @@ article.ebook section aside.donation p::after{
 		display: inline;
 	}
 
-	footer ul li:nth-child(3)::after{
+	footer ul li:nth-child(4)::after{
 		content: "\A"; /* This is a line break */
 		white-space: pre;
 		margin: 0;
@@ -2051,6 +2123,24 @@ article.ebook section aside.donation p::after{
 	main.ebooks > ol{
 		grid-template-columns: repeat(2, 1fr);
 	}
+
+	footer ul li:nth-child(2)::after{
+		content: "\A"; /* This is a line break */
+		white-space: pre;
+		margin: 0;
+	}
+
+	footer ul li:nth-child(4)::after{
+		content: "\b7";
+		white-space: normal;
+		margin: 0 10px;
+	}
+
+	footer ul li:nth-child(5)::after{
+		content: "\A"; /* This is a line break */
+		white-space: pre;
+		margin: 0;
+	}
 }
 
 @media(max-width: 680px){
@@ -2242,10 +2332,16 @@ article.ebook section aside.donation p::after{
 		text-align: left;
 	}
 
-	footer ul li:nth-child(5)::after{
+	form[action="/settings"] button{
-		content: "\A"; /* This is a line break */
+		display: block;
-		white-space: pre;
+		margin-top: 1rem;
-		margin: 0;
+		margin-left: 0;
+	}
+
+	form[action="/settings"] button,
+	form[action="/settings"] span,
+	form[action="/settings"] select{
+		width: 100%;
 	}
 }
 
@@ -2259,16 +2355,6 @@ article.ebook section aside.donation p::after{
 	.masthead ol li img.contact{
 		height: .75rem;
 	}
-}
-
-@media(max-width: 380px){
-	main.front-page h1{
-		font-size: 2rem;
-	}
-
-	h1,h2,h3,h4,h5,h6,code,.ebook h1 + p{
-		hyphens: auto;
-	}
 
 	body > footer{
 		padding-top: 0;
@@ -2282,6 +2368,16 @@ article.ebook section aside.donation p::after{
 	footer ul li::after{
 		display: none;
 	}
+}
+
+@media(max-width: 380px){
+	main.front-page h1{
+		font-size: 2rem;
+	}
+
+	h1,h2,h3,h4,h5,h6,code,.ebook h1 + p{
+		hyphens: auto;
+	}
 
 	main.ebooks > ol{
 		grid-template-columns: 1fr;
@@ -2308,7 +2404,6 @@ article.ebook section aside.donation p::after{
 		grid-row: 6;
 	}
 
-
 	body > header ul li:nth-child(2n)::after{
 		display: none;
 	}
@@ -2321,7 +2416,6 @@ article.ebook section aside.donation p::after{
 		display: none;
 	}
 
-
 	body > header ul li:nth-child(2) ~ li,
 	body > header ul li + li{
 		margin-top: 1rem;
@@ -2341,73 +2435,3 @@ article.ebook section aside.donation p::after{
 		text-align: left;
 	}
 }
-
-@media(prefers-color-scheme: dark){
-
-
-	main.front-page > section > section figure img{
-		box-shadow: 3px 3px 1px rgba(0, 0, 0, .5);
-	}
-
-	body > header > a:focus{
-		/* Since we use invert() to change the color of the SE logo,
-		we must specify the light outline (which is dark)
-		so that it inverts to white */
-		outline: 1px dashed var(--light-input-outline);
-	}
-
-	article.ebook section#read-online a::before,
-	article.ebook section#download ul li a[class]::before,
-	article.ebook section#details ul li a[class]::before,
-	footer p:last-child a::before,
-	main.front-page > section > section figure.oss img + img,
-	main.front-page > section > h2::before,
-	main.front-page > section > h2::after{
-		filter: invert() grayscale(100%) brightness(120%) drop-shadow(3px 3px 1px rgba(0, 0, 0, .25)); /* grayscale and brightness makes it hit about #eeeeee */
-	}
-
-	.masthead img[src*="portrait.svg"],
-	.masthead img.contact{
-		filter: invert();
-	}
-
-	.masthead img[src*="portrait.svg"]{
-		border-color: var(--border-light);
-	}
-
-	aside.donation,
-	article.ebook section aside.donation{
-		background: rgba(0, 0, 0, .25);
-	}
-
-	aside.donation,
-	article.ebook section aside.donation{
-		box-shadow: none;
-	}
-
-	select,
-	input[type="search"]{
-		box-shadow: 1px 1px 0 rgba(0, 0, 0, .5) inset;
-	}
-
-	input::placeholder{
-		color: rgba(255, 255, 255, .75);
-	}
-
-	main.ebooks > ol img:hover{
-		box-shadow: 3px 3px 1px rgba(0, 0, 0, .5);
-	}
-
-	article.ebook #more-ebooks img:hover{
-		box-shadow: 3px 3px 1px rgba(0, 0, 0, .5);
-	}
-
-	label.select > span + span::after,
-	label.search::before{
-		text-shadow: 1px 1px 0 #000;
-	}
-
-	h1,h2,h3,h4,h5,h6{
-		text-shadow: 2px 2px 0 rgba(0, 0, 0, .75);
-	}
-}

www/css/dark.css

@@ -0,0 +1,79 @@
+:root{
+	--body-text: var(--dark-body-text);
+	--header: var(--dark-header);
+	--button: var(--dark-button);
+	--button-highlight: var(--dark-button-highlight);
+	--border: var(--dark-border);
+	--sub-text: var(--dark-sub-text);
+	--body-bg: var(--dark-body-bg);
+	--input-hover: var(--dark-input-hover);
+	--input-border: var(--dark-input-border);
+	--input-outline: var(--dark-input-outline);
+	--link-highlight: var(--button-highlight); /* lighter looks better in dark mode */
+}
+
+main.front-page > section > section figure img{
+	box-shadow: 3px 3px 1px rgba(0, 0, 0, .5);
+}
+
+body > header > a:focus{
+	/* Since we use invert() to change the color of the SE logo,
+	we must specify the light outline (which is dark)
+	so that it inverts to white */
+	outline: 1px dashed var(--light-input-outline);
+}
+
+article.ebook section#read-online a::before,
+article.ebook section#download ul li a[class]::before,
+article.ebook section#details ul li a[class]::before,
+footer p:last-child a::before,
+main.front-page > section > section figure.oss img + img,
+main.front-page > section > h2::before,
+main.front-page > section > h2::after{
+	filter: invert() grayscale(100%) brightness(120%) drop-shadow(3px 3px 1px rgba(0, 0, 0, .25)); /* grayscale and brightness makes it hit about #eeeeee */
+}
+
+.masthead img[src*="portrait.svg"],
+.masthead img.contact{
+	filter: invert();
+}
+
+.masthead img[src*="portrait.svg"]{
+	border-color: var(--border-light);
+}
+
+aside.donation,
+article.ebook section aside.donation{
+	background: rgba(0, 0, 0, .25);
+}
+
+aside.donation,
+article.ebook section aside.donation{
+	box-shadow: none;
+}
+
+select,
+input[type="search"]{
+	box-shadow: 1px 1px 0 rgba(0, 0, 0, .5) inset;
+}
+
+input::placeholder{
+	color: rgba(255, 255, 255, .75);
+}
+
+main.ebooks > ol img:hover{
+	box-shadow: 3px 3px 1px rgba(0, 0, 0, .5);
+}
+
+article.ebook #more-ebooks img:hover{
+	box-shadow: 3px 3px 1px rgba(0, 0, 0, .5);
+}
+
+label.select > span + span::after,
+label.search::before{
+	text-shadow: 1px 1px 0 #000;
+}
+
+h1,h2,h3,h4,h5,h6{
+	text-shadow: 2px 2px 0 rgba(0, 0, 0, .75);
+}

www/css/reset.css

@@ -1,94 +0,0 @@
-/* Dont @import this, to prevent FOUC */
-html{
-	margin: 0;
-	padding: 0;
-	-ms-text-size-adjust: 100%;
-	-webkit-text-size-adjust: 100%;
-}
-
-body{
-	margin: 0;
-	padding: 0;
-}
-
-a{
-	outline: 0;
-}
-
-blockquote{
-	margin: 0;
-	quotes: none;
-}
-
-p{
-	margin: 0;
-}
-
-ol{
-	margin: 0;
-	padding: 0;
-}
-
-ul{
-	margin: 0;
-	padding: 0;
-}
-
-h1{
-	margin: 0;
-}
-
-h2{
-	margin: 0;
-}
-
-h3{
-	margin: 0;
-}
-
-h4{
-	margin: 0;
-}
-
-h5{
-	margin: 0;
-}
-
-h6{
-	margin: 0;
-}
-
-table {
-	border-collapse: collapse;
-	border-spacing: 0;
-}
-
-q{
-	quotes: none;
-}
-
-figure{
-	margin: 0;
-}
-
-button::-moz-focus-inner{
-	border: 0;
-}
-
-/* ie 11 compatibility */
-header{
-	display: block;
-}
-
-nav{
-	display: block;
-}
-
-main{
-	display: block;
-}
-
-footer{
-	display: block;
-}
-/* end ie 11 compatibility */

www/settings/index.php

@@ -0,0 +1,23 @@
+<?
+require_once('Core.php');
+
+$colorScheme = $_COOKIE['color-scheme'] ?? 'auto';
+
+?><?= Template::Header(['title' => 'Website Settings', 'description' => 'Adjust your settings for viewing the Standard Ebooks website.']) ?>
+<main>
+	<h1>Website Settings</h1>
+	<form action="/settings" method="post">
+		<label class="select">
+			<span>Color scheme</span>
+			<span>
+				<select name="color-scheme">
+					<option value="auto"<? if($colorScheme == 'auto'){ ?> selected="selected"<? } ?>>Automatic</option>
+					<option value="light"<? if($colorScheme == 'light'){ ?> selected="selected"<? } ?>>Light</option>
+					<option value="dark"<? if($colorScheme == 'dark'){ ?> selected="selected"<? } ?>>Dark</option>
+				</select>
+			</span>
+		</label>
+		<button>Apply</button>
+	</form>
+</main>
+<?= Template::Footer() ?>

www/settings/post.php

@@ -0,0 +1,21 @@
+<?
+require_once('Core.php');
+
+$colorScheme = $_POST['color-scheme'] ?? 'auto';
+
+if($colorScheme !== 'dark' && $colorScheme !== 'light' && $colorScheme !== 'auto'){
+	$colorScheme = 'auto';
+}
+
+if($colorScheme == 'auto'){
+	// Delete the cookie; auto is the default
+	setcookie('color-scheme', null, ['expires' => 0, 'path' => '/', 'secure' => true, 'httponly' => true]);
+}
+else{
+	setcookie('color-scheme', $colorScheme, ['expires' => strtotime('+10 years'), 'path' => '/', 'secure' => true, 'httponly' => true]);
+}
+
+// HTTP 303, See other
+http_response_code(303);
+header('Location: /settings');
+?>