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style: Don't perform parent display-based style fixups on most pseudos.

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This commit is contained in:
Cameron McCormack 2017-07-17 15:40:34 +08:00
parent b701d726f2
commit d4c507ce6d
3 changed files with 16 additions and 1 deletions
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7
components/style/gecko/pseudo_element.rs
View file

@ -115,6 +115,13 @@ impl PseudoElement {
(self.flags() & structs::CSS_PSEUDO_ELEMENT_SUPPORTS_USER_ACTION_STATE) != 0
}
/// Whether this pseudo-element skips flex/grid container display-based
/// fixup.
#[inline]
pub fn skip_item_based_display_fixup(&self) -> bool {
(self.flags() & structs::CSS_PSEUDO_ELEMENT_IS_FLEX_OR_GRID_ITEM) == 0
}
/// Whether this pseudo-element is precomputed.
#[inline]
pub fn is_precomputed(&self) -> bool {

7
components/style/servo/selector_parser.rs
View file

@ -150,6 +150,13 @@ impl PseudoElement {
self.is_precomputed()
}
/// Whether this pseudo-element skips flex/grid container
/// display-based fixup.
#[inline]
pub fn skip_item_based_display_fixup(&self) -> bool {
!self.is_before_or_after()
}
/// Whether this pseudo-element is precomputed.
#[inline]
pub fn is_precomputed(&self) -> bool {

3
components/style/style_resolver.rs
View file

@ -442,7 +442,8 @@ where
let mut cascade_info = CascadeInfo::new();
let mut cascade_flags = CascadeFlags::empty();
if self.element.skip_root_and_item_based_display_fixup() {
if self.element.skip_root_and_item_based_display_fixup() ||
pseudo.map_or(false, |p| p.skip_item_based_display_fixup()) {
cascade_flags.insert(SKIP_ROOT_AND_ITEM_BASED_DISPLAY_FIXUP);
}