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style: Match :lang() using snapshots correctly.

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This commit is contained in:
Cameron McCormack 2017-06-07 12:30:10 +08:00
parent c7e2500311
commit f492c8fe6e
6 changed files with 134 additions and 11 deletions
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8
components/style/servo/selector_parser.rs
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@ -13,7 +13,7 @@ use dom::{OpaqueNode, TElement, TNode};
use element_state::ElementState;
use fnv::FnvHashMap;
use restyle_hints::ElementSnapshot;
use selector_parser::{ElementExt, PseudoElementCascadeType, SelectorParser};
use selector_parser::{AttrValue as SelectorAttrValue, ElementExt, PseudoElementCascadeType, SelectorParser};
use selectors::Element;
use selectors::attr::{AttrSelectorOperation, NamespaceConstraint};
use selectors::parser::SelectorMethods;
@ -588,6 +588,12 @@ impl ElementSnapshot for ServoElementSnapshot {
}
}
}
fn lang_attr(&self) -> Option<SelectorAttrValue> {
self.get_attr(&ns!(xml), &local_name!("lang"))
.or_else(|| self.get_attr(&ns!(), &local_name!("lang")))
.map(|v| String::from(v as &str))
}
}
impl ServoElementSnapshot {