bjoernager/rust
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Add possibility to have multiple themes

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This commit is contained in:
Guillaume Gomez 2018-01-20 21:12:00 +01:00
parent 3001ab10b9
commit 003b2bc1c6
6 changed files with 537 additions and 8 deletions
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82
src/librustdoc/html/render.rs
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@ -219,6 +219,17 @@ impl Error {
}
}
macro_rules! try_none {
($e:expr, $file:expr) => ({
use std::io;
match $e {
Some(e) => e,
None => return Err(Error::new(io::Error::new(io::ErrorKind::Other, "not found"),
$file))
}
})
}
macro_rules! try_err {
($e:expr, $file:expr) => ({
match $e {
@ -859,12 +870,75 @@ fn write_shared(cx: &Context,
// Add all the static files. These may already exist, but we just
// overwrite them anyway to make sure that they're fresh and up-to-date.
write(cx.dst.join("main.js"),
include_bytes!("static/main.js"))?;
write(cx.dst.join("rustdoc.css"),
include_bytes!("static/rustdoc.css"))?;
write(cx.dst.join("main.css"),
include_bytes!("static/styles/main.css"))?;
let path = cx.shared.src_root.join("../librustdoc/html/static/themes");
let mut themes: Vec<String> = Vec::new();
for entry in try_err!(fs::read_dir(path.clone()), &path) {
let entry = try_err!(entry, &path);
let mut content = Vec::with_capacity(100000);
let mut f = try_err!(File::open(entry.path()), &entry.path());
try_err!(f.read_to_end(&mut content), &entry.path());
write(cx.dst.join(entry.file_name()), content.as_slice())?;
themes.push(try_none!(
try_none!(entry.path().file_stem(), &entry.path()).to_str(),
&entry.path()).to_owned());
}
themes.sort();
// To avoid theme switch latencies as much as possible, we put everything theme related
// at the beginning of the html files into another js file.
write(cx.dst.join("theme.js"), format!(
r#"var themes = document.getElementById("theme-choices");
var themePicker = document.getElementById("theme-picker");
themePicker.onclick = function() {{
if (themes.style.display === "block") {{
themes.style.display = "none";
themePicker.style.borderBottomRightRadius = "3px";
themePicker.style.borderBottomLeftRadius = "3px";
}} else {{
themes.style.display = "block";
themePicker.style.borderBottomRightRadius = "0";
themePicker.style.borderBottomLeftRadius = "0";
}}
}};
var currentTheme = document.getElementById("themeStyle");
var mainTheme = document.getElementById("mainThemeStyle");
[{}].forEach(function(item) {{
var div = document.createElement('div');
div.innerHTML = item;
div.onclick = function(el) {{
switchTheme(currentTheme, mainTheme, item);
}};
themes.appendChild(div);
}});
function updateLocalStorage(theme) {{
if (typeof(Storage) !== "undefined") {{
localStorage.theme = theme;
}} else {{
// No Web Storage support so we do nothing
}}
}}
function switchTheme(styleElem, mainStyleElem, newTheme) {{
styleElem.href = mainStyleElem.href.replace("rustdoc.css", newTheme + ".css");
updateLocalStorage(newTheme);
}}
function getCurrentTheme() {{
if (typeof(Storage) !== "undefined" && localStorage.theme !== undefined) {{
return localStorage.theme;
}}
return "main";
}}
switchTheme(currentTheme, mainTheme, getCurrentTheme());
"#, themes.iter()
.map(|s| format!("\"{}\"", s))
.collect::<Vec<String>>()
.join(",")).as_bytes())?;
write(cx.dst.join("main.js"), include_bytes!("static/main.js"))?;
if let Some(ref css) = cx.shared.css_file_extension {
let out = cx.dst.join("theme.css");
try_err!(fs::copy(css, out), css);