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Move selector matching to an external library, for use outside Servo.

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This commit is contained in:
Simon Sapin 2015-02-21 20:58:11 +01:00
parent 2e1adb3fa6
commit 2a50755c8a
26 changed files with 136 additions and 2896 deletions
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24
components/style/parser.rs
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@ -3,8 +3,7 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use std::collections::HashMap;
use string_cache::Namespace;
use selectors::parser::ParserContext as SelectorParserContext;
use cssparser::{Parser, SourcePosition};
use url::{Url, UrlParser};
use log;
@ -12,37 +11,24 @@ use log;
use stylesheets::Origin;
pub struct NamespaceMap {
pub default: Option<Namespace>,
pub prefix_map: HashMap<String, Namespace>,
}
pub struct ParserContext<'a> {
pub stylesheet_origin: Origin,
pub base_url: &'a Url,
pub namespaces: NamespaceMap,
pub selector_context: SelectorParserContext,
}
impl<'a> ParserContext<'a> {
pub fn new(stylesheet_origin: Origin, base_url: &'a Url) -> ParserContext<'a> {
let mut selector_context = SelectorParserContext::new();
selector_context.in_user_agent_stylesheet = stylesheet_origin == Origin::UserAgent;
ParserContext {
stylesheet_origin: stylesheet_origin,
base_url: base_url,
namespaces: NamespaceMap {
default: None,
prefix_map: HashMap::new()
}
selector_context: selector_context,
}
}
}
impl<'a> ParserContext<'a> {
pub fn in_user_agent_stylesheet(&self) -> bool {
self.stylesheet_origin == Origin::UserAgent
}
pub fn parse_url(&self, input: &str) -> Url {
UrlParser::new().base_url(self.base_url).parse(input)
.unwrap_or_else(|_| Url::parse("about:invalid").unwrap())