servo/components/style/stylesheets/namespace_rule.rs
2018-01-22 14:58:05 -08:00

39 lines
1.3 KiB
Rust

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
//! The `@namespace` at-rule.
use {Namespace, Prefix};
use cssparser::SourceLocation;
use shared_lock::{SharedRwLockReadGuard, ToCssWithGuard};
use std::fmt::{self, Write};
use str::CssStringWriter;
/// A `@namespace` rule.
#[derive(Clone, Debug, PartialEq)]
#[allow(missing_docs)]
pub struct NamespaceRule {
/// The namespace prefix, and `None` if it's the default Namespace
pub prefix: Option<Prefix>,
/// The actual namespace url.
pub url: Namespace,
/// The source location this rule was found at.
pub source_location: SourceLocation,
}
impl ToCssWithGuard for NamespaceRule {
// https://drafts.csswg.org/cssom/#serialize-a-css-rule CSSNamespaceRule
fn to_css(&self, _guard: &SharedRwLockReadGuard, dest: &mut CssStringWriter) -> fmt::Result {
dest.write_str("@namespace ")?;
if let Some(ref prefix) = self.prefix {
dest.write_str(&*prefix.to_string())?;
dest.write_str(" ")?;
}
// FIXME(emilio): Pretty sure this needs some escaping, or something?
dest.write_str("url(\"")?;
dest.write_str(&*self.url.to_string())?;
dest.write_str("\");")
}
}