Rollup merge of rust-lang#102924 - notriddle:notriddle/sidebar-link-class, r=GuillaumeGomez

rustdoc: remove unused classes from sidebar links

Since rust-lang@98f05a0 removed separate colors from the currently-selected item, there's no need to have item classes on sidebar links.

Preview: https://notriddle.com/notriddle-rustdoc-demos/sidebar-link-class/std/vec/struct.Vec.html

While cleaning up the CSS to remove unneeded `.content` selectors, this PR changes the `h1.fqn a` CSS selector to just be `h1 a`, so that the header link color selector is less specific than the typed link at the end. Since rust-lang#89506 made docblocks start at `h2`, the main page link header should be the only h1 in the page now.

Author: Dylan-DPC

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

@@ -218,55 +218,55 @@ pre.rust a,
 .sidebar h2 a,
 .sidebar h3 a,
 .mobile-topbar h2 a,
-h1.fqn a,
+h1 a,
 .search-results a,
 .module-item .stab,
 .import-item .stab,
 .result-name .primitive > i, .result-name .keyword > i,
-.content .method .where,
-.content .fn .where,
-.content .where.fmt-newline {
+.method .where,
+.fn .where,
+.where.fmt-newline {
 	color: var(--main-color);
 }
 
-.content span.enum, .content a.enum,
-.content span.struct, .content a.struct,
-.content span.union, .content a.union,
-.content span.primitive, .content a.primitive,
-.content span.type, .content a.type,
-.content span.foreigntype, .content a.foreigntype {
+span.enum, a.enum,
+span.struct, a.struct,
+span.union, a.union,
+span.primitive, a.primitive,
+span.type, a.type,
+span.foreigntype, a.foreigntype {
 	color: var(--type-link-color);
 }
 
-.content span.trait, .content a.trait,
-.content span.traitalias, .content a.traitalias {
+span.trait, a.trait,
+span.traitalias, a.traitalias {
 	color: var(--trait-link-color);
 }
 
-.content span.associatedtype, .content a.associatedtype,
-.content span.constant, .content a.constant,
-.content span.static, .content a.static {
+span.associatedtype, a.associatedtype,
+span.constant, a.constant,
+span.static, a.static {
 	color: var(--assoc-item-link-color);
 }
 
-.content span.fn, .content a.fn,
-.content .fnname,
-.content span.method, .content a.method,
-.content span.tymethod, .content a.tymethod {
+span.fn, a.fn,
+.fnname,
+span.method, a.method,
+span.tymethod, a.tymethod {
 	color: var(--function-link-color);
 }
 
-.content span.attr, .content a.attr,
-.content span.derive, .content a.derive,
-.content span.macro, .content a.macro {
+span.attr, a.attr,
+span.derive, a.derive,
+span.macro, a.macro {
 	color: var(--macro-link-color);
 }
 
-.content span.mod, .content a.mod, .block a.current.mod {
+span.mod, a.mod {
 	color: var(--mod-link-color);
 }
 
-.content span.keyword, .content a.keyword {
+span.keyword, a.keyword {
 	color: var(--keyword-link-color);
 }
 
@@ -685,9 +685,9 @@ pre, .rustdoc.source .example-wrap {
 }
 
 /* Shift "where ..." part of method or fn definition down a line */
-.content .method .where,
-.content .fn .where,
-.content .where.fmt-newline {
+.method .where,
+.fn .where,
+.where.fmt-newline {
 	display: block;
 	font-size: 0.875rem;
 }

src/librustdoc/html/static/css/themes/ayu.css

@@ -56,7 +56,7 @@ input:focus + .slider {
 h1, h2, h3, h4 {
 	color: white;
 }
-h1.fqn  a {
+h1 a {
 	color: #fff;
 }
 h4 {

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

@@ -451,21 +451,19 @@ function loadCss(cssFileName) {
                 const name = item[0];
                 const desc = item[1]; // can be null
 
-                let klass = shortty;
                 let path;
                 if (shortty === "mod") {
                     path = name + "/index.html";
                 } else {
                     path = shortty + "." + name + ".html";
                 }
                 const current_page = document.location.href.split("/").pop();
-                if (path === current_page) {
-                    klass += " current";
-                }
                 const link = document.createElement("a");
                 link.href = path;
                 link.title = desc;
-                link.className = klass;
+                if (path === current_page) {
+                    link.className = "current";
+                }
                 link.textContent = name;
                 const li = document.createElement("li");
                 li.appendChild(link);