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style: Make style sharing look at XBL / Shadow DOM rules.

Browse source 
Bug: 1412251
Reviewed-by: bz
MozReview-Commit-ID: II6lk6OmSZU
This commit is contained in:
Emilio Cobos Álvarez 2017-10-28 01:48:08 +02:00
parent 328f142f38
commit 4b43b7c7f8
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GPG key ID: 056B727BB9C1027C
5 changed files with 148 additions and 47 deletions
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51
components/style/stylist.rs
View file

@ -1409,10 +1409,29 @@ impl Stylist {
/// Given an id, returns whether there might be any rules for that id in any
/// of our rule maps.
#[inline]
pub fn may_have_rules_for_id(&self, id: &Atom) -> bool {
self.cascade_data
.iter_origins()
.any(|(d, _)| d.mapped_ids.might_contain_hash(id.get_hash()))
pub fn may_have_rules_for_id<E>(
&self,
id: &Atom,
element: E,
) -> bool
where
E: TElement,
{
let hash = id.get_hash();
for (data, _) in self.cascade_data.iter_origins() {
if data.mapped_ids.might_contain_hash(hash) {
return true;
}
}
let mut xbl_rules_may_contain = false;
element.each_xbl_stylist(|stylist| {
xbl_rules_may_contain = xbl_rules_may_contain ||
stylist.cascade_data.author.mapped_ids.might_contain_hash(hash)
});
xbl_rules_may_contain
}
/// Returns the registered `@keyframes` animation for the specified name.
@ -1428,7 +1447,7 @@ impl Stylist {
/// revalidation selectors.
pub fn match_revalidation_selectors<E, F>(
&self,
element: &E,
element: E,
bloom: Option<&BloomFilter>,
nth_index_cache: &mut NthIndexCache,
flags_setter: &mut F
@ -1454,14 +1473,14 @@ impl Stylist {
let mut results = SmallBitVec::new();
for (data, _) in self.cascade_data.iter_origins() {
data.selectors_for_cache_revalidation.lookup(
*element,
element,
self.quirks_mode,
&mut |selector_and_hashes| {
results.push(matches_selector(
&selector_and_hashes.selector,
selector_and_hashes.selector_offset,
Some(&selector_and_hashes.hashes),
element,
&element,
&mut matching_context,
flags_setter
));
@ -1470,6 +1489,24 @@ impl Stylist {
);
}
element.each_xbl_stylist(|stylist| {
stylist.cascade_data.author.selectors_for_cache_revalidation.lookup(
element,
stylist.quirks_mode,
&mut |selector_and_hashes| {
results.push(matches_selector(
&selector_and_hashes.selector,
selector_and_hashes.selector_offset,
Some(&selector_and_hashes.hashes),
&element,
&mut matching_context,
flags_setter
));
true
}
);
});
results
}