Rustdoc Redesign

Applies a modern look to rust documentation.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name         Rustdoc Redesign
// @namespace    http://tampermonkey.net/
// @version      2024-12-10
// @description  Applies a modern look to rust documentation.
// @author       exa04
// @match        *://*/*
// @icon         https://rustacean.net/assets/rustacean-orig-noshadow.png
// @grant        GM_addStyle
// @license      GPLv3
// ==/UserScript==

const STYLE = `
@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap');

:root {
  --gray-950: #09090b;
  --gray-900: #18181b;
  --gray-800: #27272a;
  --gray-700: #3f3f46;
  --gray-600: #52525b;
  --gray-500: #71717a;
  --gray-400: #a1a1aa;
  --gray-300: #d4d4d8;
  --gray-200: #e4e4e7;
  --gray-100: #f4f4f5;
  --gray-50:  #fafafa;

  --accent-darkened: #451a03;
  --accent-lightened: #fde68a;
}
:root[data-theme="dark"] {
  --accent: #f59e0b;

  --body-background-color: var(--gray-950);
  --sidebar-background-color: var(--gray-950);
  --main-background-color: var(--gray-900);
  --code-block-background-color: var(--gray-800);
  --link-color: var(--accent);
  --sidebar-link-color: var(--gray-400);
  --accent-bg: var(--accent-darkened);
  --text-color: var(--gray-200);
  --main-color: var(--gray-200);
  --text-faded: var(--gray-400);
  --text-muted: var(--gray-500);
  --border: var(--gray-700);
  --search-shadow: 0 24px 64px 0 black;
  --search-btn-background-color: var(--gray-800);

  --code-highlight-comment-color: var(--gray-500);
}
:root[data-theme="light"] {
  --accent: #b45309;

  --body-background-color: var(--gray-200);
  --sidebar-background-color: var(--gray-100);
  --main-background-color: var(--gray-50);
  --code-block-background-color: var(--gray-100);
  --link-color: var(--accent);
  --sidebar-link-color: var(--gray-600);
  --accent-bg: var(--accent-lightened);
  --text-color: var(--gray-900);
  --main-color: var(--gray-900);
  --text-faded: var(--gray-600);
  --text-muted: var(--gray-500);
  --border: var(--gray-300);
  --search-shadow: 0 24px 64px 0 rgba(0,0,0,0.2);
  --search-btn-background-color: var(--gray-300);

  --code-highlight-comment-color: var(--gray-500);
}
.rustdoc, .rustdoc-page {
  max-width: 1440px;
  margin: auto;
}
main {
  background-color: var(--main-background-color);
  padding-left: 3rem;
  padding-right: 3rem;
  padding-top: 1rem;
}
body {
  background-color: var(--body-background-color);
}
.width-limiter {
  margin: auto;
  max-width: 780px;
}
.rustdoc, .rustdoc-page, #crate-search, h1, h2, h3, h4, h5, h6, .sidebar, .mobile-topbar, .search-input, .search-results, .result-name, .item-name > a, .out-of-band, .sub-heading, span.since, a.src, rustdoc-toolbar, summary.hideme, .scraped-example-list, .rustdoc-breadcrumbs, ul.all-items {
  font-family: "Inter", "Helvetica", Arial, sans-serif;
}

.toc {
  width: 192px;
  flex-grow: 0;
  flex-shrink: 0;
  font-size: 0.875rem;
  height: 100vh;
  position: sticky;
  top: 0;
  padding-top: 1rem;
  padding-right: 0.5rem;
  overflow-y: auto;
  background-color: var(--sidebar-background-color);
}
.toc .heading {
  padding-left: var(--sidebar-elems-left-padding);
  margin-bottom: 0.5rem;
}
.toc h3 {
  padding: 0;
  margin: 0;
}
.toc h3 a{
  color: var(--text-color);
}
.toc .block {
  padding-left: 0.5rem;
}
.toc a {
  color: var(--text-faded);
}
.sidebar .rustdoc-breadcrumbs {
  font-size: 1rem;
  font-weight: bold;
  padding-left: var(--sidebar-elems-left-padding);
  color: var(--text-faded);
  margin-bottom: 1rem;
}
.sidebar > .version {
  color: var(--text-faded);
  font-ssize: 0.875rem;
  margin: 1rem 0;
}
.sidebar .search {
  background-color: var(--search-btn-background-color);
  color: var(--text-faded);
  width: calc(100% - 2.5rem);
  border: 0 none black;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  padding: 0.5rem 1rem;
  margin-left: 1.5rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  position: sticky;
  top: 8px;
  box-shadow: var(--search-shadow);
}
.sidebar .search .key {
  width: 1.25rem;
  height: 1.25rem;
  font-size: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.25rem;
  border: 1px solid var(--text-muted);
}
.sidebar .rustdoc-breadcrumbs a:last-child {
  color: var(--text-color);
}
.sidebar .rustdoc-breadcrumbs a:hover {
  background-color: transparent !important;
  text-decoration: underline;
}
.sidebar-elems h3 {
  font-size: 0.875rem;
}
.sidebar-elems a, .sidebar > h2 a {
  padding: 0.125rem 0;
  margin-left: 0;
}
.sidebar-elems {
  padding-left: 0;
}
.sidebar-elems .block {
  margin-bottom: 1.5rem;
}
.sidebar .block a {
  padding-left: 1rem;
}
.sidebar .current,
.sidebar .current a,
.sidebar-crate a.logo-container:hover + h2 a,
.sidebar a:hover:not(.logo-container) {
  color: var(--text-color);
  background: var(--accent-bg);
}
.sidebar-elems h2 {
  display: none;
}
.sidebar-crate {
  border-bottom: 2px solid var(--border);
  margin: 1rem;
  margin-left: var(--sidebar-elems-left-padding);
  padding-bottom: 1rem;
}
.sidebar-crate h2 {
  margin: 0;
}
.sidebar-crate h2 .version {
  color: var(--text-faded);
  font-size: 0.875rem;
}
.sidebar-crate h2 a {
  font-size: 1.25rem;
}
.section-header:not(.structfield) {
  font-size: 1.5rem;
  font-weight: bold;
  border-top: 2px solid var(--border);
  margin-top: 2rem;
  border-top: 2px solid var(--border);
  padding-top: 2.5rem;
}
.item-decl {
  margin-bottom: 2.5rem;
}

.rustdoc-breadcrumbs {
  display: flex;
  gap: 0.25rem;
  color: var(--text-muted);
}
.rustdoc-breadcrumbs wbr {
  display: none;
}
.rustdoc-breadcrumbs a {
  color: var(--text-muted);
}
.main-heading {
  padding-bottom: 0;
  margin: 0;
}
.main-heading h1 {
  font-size: 1.125rem;
  margin-top: 1rem;
  color: var(--text-faded);
}
.main-heading h1 > span {
  font-size: 2rem;
  display: block;
  font-weight: bold;
}
.docblock>*:first-child {
  margin-top: 0 !important;
}
.content h2, .top-doc .docblock > h3, .top-doc .docblock > h4 {
  border-bottom: none;
}
.top-doc .docblock h2 {
  font-size: 1.5rem;
  font-weight: bold;
  margin-bottom: 0;
  margin-top: 2rem;
  padding: 0;
}
.top-doc .docblock h3 {
  line-height: 1.25rem;
  font-size: 1.25rem;
  margin-bottom: 1rem;
  margin-top: 2rem;
  padding-bottom: 0;
  font-weight: bold;
}
.example-wrap {
  margin: 1rem 0;
}
main p {
  margin: 0.75rem 0;
}
.docblock code, .docblock-short code {
  background: none;
}
main .top-doc {
  margin-left: -24px;
}
.code-header {
  color: var(--text-muted);
}
.code-header > *:not(.fn) {
  color: var(--text-faded);
}
.code-header .fn {
  color: var(--accent);
}
.impl > .code-header .trait {
  color: var(--trait-link-color);
}
main p.leading {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  margin-top: 0.5rem;
}
.impl-items {
  padding-left: 2rem;
}
#trait-implementations-list .impl-items > .toggle:not(:last-child), #synthetic-implementations-list .impl-items > .toggle:not(:last-child), #blanket-implementations-list .impl-items > .toggle:not(:last-child){
  margin: 1.5rem 0;
}
#main-content.hidden {
  display: block !important;
}

#alternative-display rustdoc-toolbar {
  display: none;
}
#alternative-display {
  position: fixed;
  z-index: 100;
  top: 20vh;
  left: 50%;
  transform: translateX(-50%);
  width: 80vw;
  max-width: 800px;
  background: var(--sidebar-background-color);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0 1rem;
  box-shadow: var(--search-shadow);
}
#alternative-display #search {
  height: 100%;
  display: flex;
  flex-direction: column;
  height: 720px;
  max-height: 70vh;
}
#alternative-display #search #results {
  flex-shrink: 1;
  height: 0;
  flex-grow: 1;
  overflow-y: scroll;
}
#search #search-tabs {
  margin-bottom: 0;
}
#search .search-results-title {
  margin-top: 0;
}

.width-limiter:has(#alternative-display.hidden) rustdoc-search,
.width-limiter:not(:has(#alternative-display)) rustdoc-search {
}

.width-limiter:has(#alternative-display:not(.hidden)) rustdoc-search,
rustdoc-search:has(:focus) {
  pointer-events: auto !important;
  opacity: 1.0 !important;
}

rustdoc-search {
  position: fixed;
  z-index: 100;
  top: calc(20vh - 3.5rem);
  left: 50%;
  transform: translateX(-50%);
  width: 80vw;
  max-width: 800px;
  pointer-events: none;
  opacity: 0;
}
rustdoc-search .search-input {
  background: var(--main-background-color);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: var(--text-color);
  font-size: 1.25rem;
  padding: 0 1rem;
  height: 3rem;
}
nav.sub {
  margin-top: 0;
}

/* TODO */

.code-header .where {
  display: none;
}
#copy-path {
  display: none;
}
.sidebar-resizer {
  display: none;
}
`;

(function() {
    'use strict';

    if(!document.body.classList.contains('rustdoc')
      && !document.body.classList.contains('rustdoc-page')) {
        return;
    }

    GM_addStyle(STYLE);

    const mainContent = document.querySelector("#main-content");
    const title = document.querySelector("#main-content > .main-heading");
    const docblock = document.querySelector(".docblock");

    if(title && docblock) {
        let leading = docblock.firstChild;

        if(leading) {
            if(leading.nodeName == "#text") {
                const leading_text = leading;
                leading = document.createElement("p");
                leading.append(leading_text);
            }

            leading.classList.add("leading");
            mainContent.insertBefore(leading, title.nextSibling);

            if(docblock.children.length == 0) {
                document.querySelector(".top-doc").remove();
            }
        }
    }

    const breadcrumbs = document.querySelector(".rustdoc-breadcrumbs");

    if(breadcrumbs) {
        const path = breadcrumbs.cloneNode(true);

        Array.from(path.childNodes)
            .filter(node => node.nodeName == "WBR")
            .forEach(node => path.removeChild(node));

        const sidebar = document.querySelector(".sidebar");
        const sidebarElems = document.querySelector(".sidebar > .sidebar-elems");
        sidebar.insertBefore(path, sidebarElems);
    }

    const toc_content = document.querySelector("#rustdoc-toc");

    if(toc_content) {
        const rustdoc = document.querySelector(".rustdoc");
        let toc = document.createElement("aside");
        toc.append(toc_content);

        rustdoc.append(toc);
        toc.classList.add("toc");
        toc_content.classList.add("sidebar-elems");
    }

    const sidebarCrate = document.querySelector(".sidebar");
    const h2 = document.querySelector(".sidebar-crate");

    if(sidebarCrate && h2) {
        const search = document.createElement("button");
        search.classList.add("search");

        search.onclick = () => document.querySelector("rustdoc-search .search-input").focus();

        const key = document.createElement("span");
        key.classList.add("key");
        key.append(document.createTextNode("/"));

        search.append(key);
        search.append(document.createTextNode("Search"));
        sidebarCrate.insertBefore(search, h2.nextSibling);
    }
})();