rust/src/librustdoc/html/layout.rs

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use std::fmt;
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use std::path::PathBuf;
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use crate::externalfiles::ExternalHtml;
use crate::html::render::SlashChecker;
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use crate::html::format::Buffer;
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#[derive(Clone)]
pub struct Layout {
pub logo: String,
pub favicon: String,
pub external_html: ExternalHtml,
pub krate: String,
}
pub struct Page<'a> {
pub title: &'a str,
pub css_class: &'a str,
pub root_path: &'a str,
pub static_root_path: Option<&'a str>,
pub description: &'a str,
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pub keywords: &'a str,
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pub resource_suffix: &'a str,
pub extra_scripts: &'a [&'a str],
pub static_extra_scripts: &'a [&'a str],
}
std: Rename Show/String to Debug/Display This commit is an implementation of [RFC 565][rfc] which is a stabilization of the `std::fmt` module and the implementations of various formatting traits. Specifically, the following changes were performed: [rfc]: https://github.com/rust-lang/rfcs/blob/master/text/0565-show-string-guidelines.md * The `Show` trait is now deprecated, it was renamed to `Debug` * The `String` trait is now deprecated, it was renamed to `Display` * Many `Debug` and `Display` implementations were audited in accordance with the RFC and audited implementations now have the `#[stable]` attribute * Integers and floats no longer print a suffix * Smart pointers no longer print details that they are a smart pointer * Paths with `Debug` are now quoted and escape characters * The `unwrap` methods on `Result` now require `Display` instead of `Debug` * The `Error` trait no longer has a `detail` method and now requires that `Display` must be implemented. With the loss of `String`, this has moved into libcore. * `impl<E: Error> FromError<E> for Box<Error>` now exists * `derive(Show)` has been renamed to `derive(Debug)`. This is not currently warned about due to warnings being emitted on stage1+ While backwards compatibility is attempted to be maintained with a blanket implementation of `Display` for the old `String` trait (and the same for `Show`/`Debug`) this is still a breaking change due to primitives no longer implementing `String` as well as modifications such as `unwrap` and the `Error` trait. Most code is fairly straightforward to update with a rename or tweaks of method calls. [breaking-change] Closes #21436
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pub fn render<T: fmt::Display, S: fmt::Display>(
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dst: &mut Buffer,
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layout: &Layout,
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page: &Page<'_>,
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sidebar: &S,
t: &T,
css_file_extension: bool,
themes: &[PathBuf],
generate_search_filter: bool,
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) {
let static_root_path = page.static_root_path.unwrap_or(page.root_path);
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write!(dst,
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"<!DOCTYPE html>\
<html lang=\"en\">\
<head>\
<meta charset=\"utf-8\">\
<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\
<meta name=\"generator\" content=\"rustdoc\">\
<meta name=\"description\" content=\"{description}\">\
<meta name=\"keywords\" content=\"{keywords}\">\
<title>{title}</title>\
<link rel=\"stylesheet\" type=\"text/css\" href=\"{static_root_path}normalize{suffix}.css\">\
<link rel=\"stylesheet\" type=\"text/css\" href=\"{static_root_path}rustdoc{suffix}.css\" \
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id=\"mainThemeStyle\">\
{themes}\
<link rel=\"stylesheet\" type=\"text/css\" href=\"{static_root_path}dark{suffix}.css\">\
<link rel=\"stylesheet\" type=\"text/css\" href=\"{static_root_path}light{suffix}.css\" \
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id=\"themeStyle\">\
<script src=\"{static_root_path}storage{suffix}.js\"></script>\
<noscript><link rel=\"stylesheet\" href=\"{static_root_path}noscript{suffix}.css\"></noscript>\
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{css_extension}\
{favicon}\
{in_header}\
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<style type=\"text/css\">\
#crate-search{{background-image:url(\"{static_root_path}down-arrow{suffix}.svg\");}}\
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</style>\
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</head>\
<body class=\"rustdoc {css_class}\">\
<!--[if lte IE 8]>\
<div class=\"warning\">\
This old browser is unsupported and will most likely display funky \
things.\
</div>\
<![endif]-->\
{before_content}\
<nav class=\"sidebar\">\
<div class=\"sidebar-menu\">&#9776;</div>\
{logo}\
{sidebar}\
</nav>\
<div class=\"theme-picker\">\
<button id=\"theme-picker\" aria-label=\"Pick another theme!\">\
<img src=\"{static_root_path}brush{suffix}.svg\" \
width=\"18\" \
alt=\"Pick another theme!\">\
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</button>\
<div id=\"theme-choices\"></div>\
</div>\
<script src=\"{static_root_path}theme{suffix}.js\"></script>\
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<nav class=\"sub\">\
<form class=\"search-form js-only\">\
<div class=\"search-container\">\
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<div>{filter_crates}\
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<input class=\"search-input\" name=\"search\" \
autocomplete=\"off\" \
spellcheck=\"false\" \
placeholder=\"Click or press S to search, ? for more options…\" \
type=\"search\">\
</div>\
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<a id=\"settings-menu\" href=\"{root_path}settings.html\">\
<img src=\"{static_root_path}wheel{suffix}.svg\" \
width=\"18\" \
alt=\"Change settings\">\
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</a>\
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</div>\
</form>\
</nav>\
<section id=\"main\" class=\"content\">{content}</section>\
<section id=\"search\" class=\"content hidden\"></section>\
<section class=\"footer\"></section>\
<aside id=\"help\" class=\"hidden\">\
<div>\
<h1 class=\"hidden\">Help</h1>\
<div class=\"shortcuts\">\
<h2>Keyboard Shortcuts</h2>\
<dl>\
<dt><kbd>?</kbd></dt>\
<dd>Show this help dialog</dd>\
<dt><kbd>S</kbd></dt>\
<dd>Focus the search field</dd>\
<dt><kbd></kbd></dt>\
<dd>Move up in search results</dd>\
<dt><kbd></kbd></dt>\
<dd>Move down in search results</dd>\
<dt><kbd></kbd></dt>\
<dd>Switch tab</dd>\
<dt><kbd>&#9166;</kbd></dt>\
<dd>Go to active search result</dd>\
<dt><kbd>+</kbd></dt>\
<dd>Expand all sections</dd>\
<dt><kbd>-</kbd></dt>\
<dd>Collapse all sections</dd>\
</dl>\
</div>\
<div class=\"infos\">\
<h2>Search Tricks</h2>\
<p>\
Prefix searches with a type followed by a colon (e.g., \
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<code>fn:</code>) to restrict the search to a given type.\
</p>\
<p>\
Accepted types are: <code>fn</code>, <code>mod</code>, \
<code>struct</code>, <code>enum</code>, \
<code>trait</code>, <code>type</code>, <code>macro</code>, \
and <code>const</code>.\
</p>\
<p>\
Search functions by type signature (e.g., \
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<code>vec -> usize</code> or <code>* -> vec</code>)\
</p>\
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<p>\
Search multiple things at once by splitting your query with comma (e.g., \
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<code>str,u8</code> or <code>String,struct:Vec,test</code>)\
</p>\
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</div>\
</div>\
</aside>\
{after_content}\
<script>\
window.rootPath = \"{root_path}\";\
window.currentCrate = \"{krate}\";\
</script>\
<script src=\"{root_path}aliases{suffix}.js\"></script>\
<script src=\"{static_root_path}main{suffix}.js\"></script>\
{static_extra_scripts}\
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{extra_scripts}\
<script defer src=\"{root_path}search-index{suffix}.js\"></script>\
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</body>\
</html>",
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css_extension = if css_file_extension {
format!("<link rel=\"stylesheet\" \
type=\"text/css\" \
href=\"{static_root_path}theme{suffix}.css\">",
static_root_path = static_root_path,
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suffix=page.resource_suffix)
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} else {
String::new()
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},
content = *t,
static_root_path = static_root_path,
root_path = page.root_path,
css_class = page.css_class,
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logo = {
let p = format!("{}{}", page.root_path, layout.krate);
let p = SlashChecker(&p);
if layout.logo.is_empty() {
format!("<a href='{path}index.html'>\
<div class='logo-container'>\
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<img src='{static_root_path}rust-logo{suffix}.png' alt='logo'></div></a>",
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path=p,
static_root_path=static_root_path,
suffix=page.resource_suffix)
} else {
format!("<a href='{}index.html'>\
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<div class='logo-container'><img src='{}' alt='logo'></div></a>",
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p,
layout.logo)
}
},
title = page.title,
description = page.description,
keywords = page.keywords,
favicon = if layout.favicon.is_empty() {
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format!(r#"<link rel="shortcut icon" href="{static_root_path}favicon{suffix}.ico">"#,
static_root_path=static_root_path,
suffix=page.resource_suffix)
} else {
format!(r#"<link rel="shortcut icon" href="{}">"#, layout.favicon)
},
in_header = layout.external_html.in_header,
before_content = layout.external_html.before_content,
after_content = layout.external_html.after_content,
sidebar = *sidebar,
krate = layout.krate,
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themes = themes.iter()
.filter_map(|t| t.file_stem())
.filter_map(|t| t.to_str())
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.map(|t| format!(r#"<link rel="stylesheet" type="text/css" href="{}{}{}.css">"#,
static_root_path,
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t,
page.resource_suffix))
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.collect::<String>(),
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suffix=page.resource_suffix,
static_extra_scripts=page.static_extra_scripts.iter().map(|e| {
format!("<script src=\"{static_root_path}{extra_script}.js\"></script>",
static_root_path=static_root_path,
extra_script=e)
}).collect::<String>(),
extra_scripts=page.extra_scripts.iter().map(|e| {
format!("<script src=\"{root_path}{extra_script}.js\"></script>",
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root_path=page.root_path,
extra_script=e)
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}).collect::<String>(),
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filter_crates=if generate_search_filter {
"<select id=\"crate-search\">\
<option value=\"All crates\">All crates</option>\
</select>"
} else {
""
},
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)
}
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pub fn redirect(dst: &mut Buffer, url: &str) {
// <script> triggers a redirect before refresh, so this is fine.
write!(dst,
r##"<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="refresh" content="0;URL={url}">
</head>
<body>
<p>Redirecting to <a href="{url}">{url}</a>...</p>
<script>location.replace("{url}" + location.search + location.hash);</script>
</body>
</html>"##,
url = url,
)
}