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stylo: Add support for text-align match-parent and the <th> -moz-center-or-inherit behavior

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MozReview-Commit-ID: GEDM7JfJB8A
This commit is contained in:
Manish Goregaokar 2017-03-26 13:53:34 -07:00 • committed by Manish Goregaokar
parent 6a67688924
commit 0392e58a2f
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GPG key ID: 3BBF4D3E2EF79F98
3 changed files with 123 additions and 13 deletions
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20
components/style/gecko/wrapper.rs
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@ -51,7 +51,7 @@ use gecko_bindings::structs::NODE_IS_NATIVE_ANONYMOUS;
use gecko_bindings::sugar::ownership::HasArcFFI;
use parking_lot::RwLock;
use properties::{ComputedValues, parse_style_attribute};
use properties::PropertyDeclarationBlock;
use properties::{Importance, PropertyDeclaration, PropertyDeclarationBlock};
use properties::animated_properties::AnimationValueMap;
use rule_tree::CascadeLevel as ServoCascadeLevel;
use selector_parser::{ElementExt, Snapshot};
@ -624,6 +624,24 @@ impl<'le> PresentationalHintsSynthetizer for GeckoElement<'le> {
fn synthesize_presentational_hints_for_legacy_attributes<V>(&self, hints: &mut V)
where V: Push<ApplicableDeclarationBlock>,
{
use properties::longhands::text_align::SpecifiedValue;
lazy_static! {
static ref TH_RULE: ApplicableDeclarationBlock = {
let global_style_data = &*GLOBAL_STYLE_DATA;
let pdb = PropertyDeclarationBlock::with_one(
PropertyDeclaration::TextAlign(SpecifiedValue::MozCenterOrInherit),
Importance::Normal
);
let arc = Arc::new(global_style_data.shared_lock.wrap(pdb));
ApplicableDeclarationBlock::from_declarations(arc, ServoCascadeLevel::PresHints)
};
};
// <th> elements get a default MozCenterOrInherit which may get overridden
if self.get_namespace() == &*Namespace(atom!("http://www.w3.org/1999/xhtml")) &&
self.get_local_name().as_ptr() == atom!("th").as_ptr() {
hints.push(TH_RULE.clone());
}
let declarations = unsafe { Gecko_GetHTMLPresentationAttrDeclarationBlock(self.0) };
let declarations = declarations.and_then(|s| s.as_arc_opt());
if let Some(decl) = declarations {