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Bug 1953539 - Allow UA widget nodes to be pseudo-elements. r=firefox-style-system-reviewers,zrhoffman

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No behavior change right now, but this will unblock D241100.

Differential Revision: https://phabricator.services.mozilla.com/D241106
This commit is contained in:
Emilio Cobos Álvarez
2025-03-12 16:25:15 +00:00
parent c8463bc874
commit 1eb3c5cd06
1 changed files with 23 additions and 14 deletions
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37
servo/components/style/gecko/wrapper.rs
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@@ -850,8 +850,19 @@ impl<'le> GeckoElement<'le> {
/// This logic is duplicated in Gecko's nsIContent::IsRootOfNativeAnonymousSubtree.
#[inline]
fn is_root_of_native_anonymous_subtree(&self) -> bool {
use crate::gecko_bindings::structs::NODE_IS_NATIVE_ANONYMOUS_ROOT;
return self.flags() & NODE_IS_NATIVE_ANONYMOUS_ROOT != 0;
return self.flags() & structs::NODE_IS_NATIVE_ANONYMOUS_ROOT != 0;
}
/// Whether the element is in an anonymous subtree. Note that this includes UA widgets!
#[inline]
fn in_native_anonymous_subtree(&self) -> bool {
(self.flags() & structs::NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE) != 0
}
/// Whether the element has been in a UA widget
#[inline]
fn in_ua_widget(&self) -> bool {
(self.flags() & structs::NODE_HAS_BEEN_IN_UA_WIDGET) != 0
}
fn css_transitions_info(&self) -> FxHashMap<OwnedPropertyDeclarationId, Arc<AnimationValue>> {
@@ -1420,17 +1431,12 @@ impl<'le> TElement for GeckoElement<'le> {
/// pseudo-elements).
#[inline]
fn matches_user_and_content_rules(&self) -> bool {
use crate::gecko_bindings::structs::{
NODE_HAS_BEEN_IN_UA_WIDGET, NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE,
};
let flags = self.flags();
(flags & NODE_IS_IN_NATIVE_ANONYMOUS_SUBTREE) == 0 ||
(flags & NODE_HAS_BEEN_IN_UA_WIDGET) != 0
!self.in_native_anonymous_subtree() || self.in_ua_widget()
}
#[inline]
fn implemented_pseudo_element(&self) -> Option<PseudoElement> {
if self.matches_user_and_content_rules() {
if !self.in_native_anonymous_subtree() {
return None;
}
@@ -1902,14 +1908,17 @@ impl<'le> ::selectors::Element for GeckoElement<'le> {
#[inline]
fn pseudo_element_originating_element(&self) -> Option<Self> {
debug_assert!(self.is_pseudo_element());
debug_assert!(!self.matches_user_and_content_rules());
debug_assert!(self.in_native_anonymous_subtree());
if self.in_ua_widget() {
return self.containing_shadow_host();
}
let mut current = *self;
loop {
if current.is_root_of_native_anonymous_subtree() {
return current.traversal_parent();
}
let anon_root = current.is_root_of_native_anonymous_subtree();
current = current.traversal_parent()?;
if anon_root {
return Some(current);
}
}
}