Rollup merge of rust-lang#115812 - GuillaumeGomez:merge-settings-into-rustdoc-css, r=notriddle

Merge settings.css into rustdoc.css

There aren't that many CSS rules in `settings.css`, however quite some code is needed around it, making it more costly than useful. I think it's better to merge into `rustdoc.css` to simplify this.

r? `@notriddle`

Author: matthiaskrgr

src/librustdoc/html/render/context.rs

@@ -714,8 +714,6 @@ impl<'tcx> FormatRenderer<'tcx> for Context<'tcx> {
                             You need to enable JavaScript be able to update your settings.\
                         </section>\
                      </noscript>\
-                     <link rel=\"stylesheet\" \
-                         href=\"{static_root_path}{settings_css}\">\
                      <script defer src=\"{static_root_path}{settings_js}\"></script>\
                      <link rel=\"preload\" href=\"{static_root_path}{theme_light_css}\" \
                          as=\"style\">\
@@ -724,7 +722,6 @@ impl<'tcx> FormatRenderer<'tcx> for Context<'tcx> {
                      <link rel=\"preload\" href=\"{static_root_path}{theme_ayu_css}\" \
                          as=\"style\">",
                     static_root_path = page.get_static_root_path(),
-                    settings_css = static_files::STATIC_FILES.settings_css,
                     settings_js = static_files::STATIC_FILES.settings_js,
                     theme_light_css = static_files::STATIC_FILES.theme_light_css,
                     theme_dark_css = static_files::STATIC_FILES.theme_dark_css,

src/librustdoc/html/static/css/rustdoc.css

@@ -925,6 +925,70 @@ so that we can apply CSS-filters to change the arrow color in themes */
 	top: -5px;
 }
 
+.setting-line {
+	margin: 1.2em 0.6em;
+}
+
+.setting-radio input, .setting-check input {
+	margin-right: 0.3em;
+	height: 1.2rem;
+	width: 1.2rem;
+	border: 2px solid var(--settings-input-border-color);
+	outline: none;
+	-webkit-appearance: none;
+	cursor: pointer;
+}
+.setting-radio input {
+	border-radius: 50%;
+}
+
+.setting-radio span, .setting-check span {
+	padding-bottom: 1px;
+}
+
+.setting-radio {
+	margin-top: 0.1em;
+	margin-bottom: 0.1em;
+	min-width: 3.8em;
+	padding: 0.3em;
+	display: inline-flex;
+	align-items: center;
+	cursor: pointer;
+}
+.setting-radio + .setting-radio {
+	margin-left: 0.5em;
+}
+
+.setting-check {
+	margin-right: 20px;
+	display: flex;
+	align-items: center;
+	cursor: pointer;
+}
+
+.setting-radio input:checked {
+	box-shadow: inset 0 0 0 3px var(--main-background-color);
+	background-color: var(--settings-input-color);
+}
+.setting-check input:checked {
+	background-color: var(--settings-input-color);
+	border-width: 1px;
+	content: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 40 40">\
+		<path d="M7,25L17,32L33,12" fill="none" stroke="black" stroke-width="5"/>\
+		<path d="M7,23L17,30L33,10" fill="none" stroke="white" stroke-width="5"/></svg>');
+}
+.setting-radio input:focus, .setting-check input:focus {
+	box-shadow: 0 0 1px 1px var(--settings-input-color);
+}
+/* In here we combine both `:focus` and `:checked` properties. */
+.setting-radio input:checked:focus {
+	box-shadow: inset 0 0 0 3px var(--main-background-color),
+		0 0 2px 2px var(--settings-input-color);
+}
+.setting-radio input:hover, .setting-check input:hover {
+	border-color: var(--settings-input-color) !important;
+}
+
 /* use larger max-width for help popover, but not for help.html */
 #help.popover {
 	max-width: 600px;

src/librustdoc/html/static/css/settings.css

@@ -176,13 +176,6 @@ function browserSupportsHistoryApi() {
     return window.history && typeof window.history.pushState === "function";
 }
 
-function loadCss(cssUrl) {
-    const link = document.createElement("link");
-    link.href = cssUrl;
-    link.rel = "stylesheet";
-    document.getElementsByTagName("head")[0].appendChild(link);
-}
-
 function preLoadCss(cssUrl) {
     // https://developer.mozilla.org/en-US/docs/Web/HTML/Link_types/preload
     const link = document.createElement("link");
@@ -210,7 +203,6 @@ function preLoadCss(cssUrl) {
         event.preventDefault();
         // Sending request for the CSS and the JS files at the same time so it will
         // hopefully be loaded when the JS will generate the settings content.
-        loadCss(getVar("static-root-path") + getVar("settings-css"));
         loadScript(getVar("static-root-path") + getVar("settings-js"));
         preLoadCss(getVar("static-root-path") + getVar("theme-light-css"));
         preLoadCss(getVar("static-root-path") + getVar("theme-dark-css"));

src/librustdoc/html/static/js/main.js

@@ -91,7 +91,6 @@ macro_rules! static_files {
 
 static_files! {
     rustdoc_css => "static/css/rustdoc.css",
-    settings_css => "static/css/settings.css",
     noscript_css => "static/css/noscript.css",
     normalize_css => "static/css/normalize.css",
     main_js => "static/js/main.js",

src/librustdoc/html/static_files.rs

@@ -33,7 +33,6 @@
          data-channel="{{rust_channel}}" {#+ #}
          data-search-js="{{files.search_js}}" {#+ #}
          data-settings-js="{{files.settings_js}}" {#+ #}
-         data-settings-css="{{files.settings_css}}" {#+ #}
          data-theme-light-css="{{files.theme_light_css}}" {#+ #}
          data-theme-dark-css="{{files.theme_dark_css}}" {#+ #}
          data-theme-ayu-css="{{files.theme_ayu_css}}" {#+ #}