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-rw-r--r--components/script/dom/bindings/trace.rs2
-rw-r--r--components/script/dom/element.rs55
-rw-r--r--components/script/dom/node.rs6
3 files changed, 32 insertions, 31 deletions
diff --git a/components/script/dom/bindings/trace.rs b/components/script/dom/bindings/trace.rs
index 6e0ce0d47dc..763ccb9b22b 100644
--- a/components/script/dom/bindings/trace.rs
+++ b/components/script/dom/bindings/trace.rs
@@ -76,6 +76,7 @@ use script_layout_interface::reporter::CSSErrorReporter;
use script_layout_interface::rpc::LayoutRPC;
use script_traits::{DocumentActivity, TimerEventId, TimerSource, TouchpadPressurePhase};
use script_traits::{UntrustedNodeAddress, WindowSizeData, WindowSizeType};
+use selectors::matching::ElementSelectorFlags;
use serde::{Deserialize, Serialize};
use servo_atoms::Atom;
use servo_url::ServoUrl;
@@ -347,6 +348,7 @@ unsafe_no_jsmanaged_fields!(TimeProfilerChan);
unsafe_no_jsmanaged_fields!(MemProfilerChan);
unsafe_no_jsmanaged_fields!(PseudoElement);
unsafe_no_jsmanaged_fields!(Length);
+unsafe_no_jsmanaged_fields!(ElementSelectorFlags);
unsafe_no_jsmanaged_fields!(ElementState);
unsafe_no_jsmanaged_fields!(DOMString);
unsafe_no_jsmanaged_fields!(Mime);
diff --git a/components/script/dom/element.rs b/components/script/dom/element.rs
index 9fae93d10cd..cf770674e74 100644
--- a/components/script/dom/element.rs
+++ b/components/script/dom/element.rs
@@ -83,7 +83,7 @@ use parking_lot::RwLock;
use ref_filter_map::ref_filter_map;
use script_layout_interface::message::ReflowQueryType;
use script_thread::Runnable;
-use selectors::matching::{ElementFlags, MatchingReason, matches};
+use selectors::matching::{ElementSelectorFlags, matches};
use selectors::matching::{HAS_EDGE_CHILD_SELECTOR, HAS_SLOW_SELECTOR, HAS_SLOW_SELECTOR_LATER_SIBLINGS};
use selectors::parser::{AttrSelector, NamespaceConstraint};
use servo_atoms::Atom;
@@ -95,7 +95,6 @@ use std::default::Default;
use std::fmt;
use std::rc::Rc;
use std::sync::Arc;
-use std::sync::atomic::{AtomicUsize, Ordering};
use style::attr::{AttrValue, LengthOrPercentageOrAuto};
use style::context::{QuirksMode, ReflowGoal};
use style::element_state::*;
@@ -109,6 +108,7 @@ use style::rule_tree::CascadeLevel;
use style::selector_parser::{NonTSPseudoClass, RestyleDamage, SelectorImpl, SelectorParser};
use style::sink::Push;
use style::stylist::ApplicableDeclarationBlock;
+use style::thread_state;
use style::values::CSSFloat;
use style::values::specified::{self, CSSColor, CSSRGBA};
use stylesheet_loader::StylesheetOwner;
@@ -131,7 +131,12 @@ pub struct Element {
attr_list: MutNullableJS<NamedNodeMap>,
class_list: MutNullableJS<DOMTokenList>,
state: Cell<ElementState>,
- atomic_flags: AtomicElementFlags,
+ /// These flags are set by the style system to indicate the that certain
+ /// operations may require restyling this element or its descendants. The
+ /// flags are not atomic, so the style system takes care of only set them
+ /// when it has exclusive access to the element.
+ #[ignore_heap_size_of = "bitflags defined in rust-selectors"]
+ selector_flags: Cell<ElementSelectorFlags>,
}
impl fmt::Debug for Element {
@@ -219,7 +224,7 @@ impl Element {
attr_list: Default::default(),
class_list: Default::default(),
state: Cell::new(state),
- atomic_flags: AtomicElementFlags::new(),
+ selector_flags: Cell::new(ElementSelectorFlags::empty()),
}
}
@@ -351,7 +356,8 @@ pub trait LayoutElementHelpers {
fn get_checked_state_for_layout(&self) -> bool;
fn get_indeterminate_state_for_layout(&self) -> bool;
fn get_state_for_layout(&self) -> ElementState;
- fn insert_atomic_flags(&self, flags: ElementFlags);
+ fn insert_selector_flags(&self, flags: ElementSelectorFlags);
+ fn has_selector_flags(&self, flags: ElementSelectorFlags) -> bool;
}
impl LayoutElementHelpers for LayoutJS<Element> {
@@ -720,9 +726,19 @@ impl LayoutElementHelpers for LayoutJS<Element> {
#[inline]
#[allow(unsafe_code)]
- fn insert_atomic_flags(&self, flags: ElementFlags) {
+ fn insert_selector_flags(&self, flags: ElementSelectorFlags) {
+ debug_assert!(thread_state::get() == thread_state::LAYOUT);
unsafe {
- (*self.unsafe_get()).atomic_flags.insert(flags);
+ let f = &(*self.unsafe_get()).selector_flags;
+ f.set(f.get() | flags);
+ }
+ }
+
+ #[inline]
+ #[allow(unsafe_code)]
+ fn has_selector_flags(&self, flags: ElementSelectorFlags) -> bool {
+ unsafe {
+ (*self.unsafe_get()).selector_flags.get().contains(flags)
}
}
}
@@ -1973,7 +1989,7 @@ impl ElementMethods for Element {
match SelectorParser::parse_author_origin_no_namespace(&selectors) {
Err(()) => Err(Error::Syntax),
Ok(selectors) => {
- Ok(matches(&selectors.0, &Root::from_ref(self), None, MatchingReason::Other))
+ Ok(matches(&selectors.0, &Root::from_ref(self), None))
}
}
}
@@ -1991,7 +2007,8 @@ impl ElementMethods for Element {
let root = self.upcast::<Node>();
for element in root.inclusive_ancestors() {
if let Some(element) = Root::downcast::<Element>(element) {
- if matches(&selectors.0, &element, None, MatchingReason::Other) {
+ if matches(&selectors.0, &element, None)
+ {
return Ok(Some(element));
}
}
@@ -2231,7 +2248,7 @@ impl VirtualMethods for Element {
s.children_changed(mutation);
}
- let flags = self.atomic_flags.get();
+ let flags = self.selector_flags.get();
if flags.intersects(HAS_SLOW_SELECTOR) {
// All children of this node need to be restyled when any child changes.
self.upcast::<Node>().dirty(NodeDamage::OtherNodeDamage);
@@ -2744,24 +2761,6 @@ impl<'a> AttributeMutation<'a> {
}
}
-/// Thread-safe wrapper for ElementFlags set during selector matching
-#[derive(JSTraceable, HeapSizeOf)]
-struct AtomicElementFlags(AtomicUsize);
-
-impl AtomicElementFlags {
- fn new() -> Self {
- AtomicElementFlags(AtomicUsize::new(0))
- }
-
- fn get(&self) -> ElementFlags {
- ElementFlags::from_bits_truncate(self.0.load(Ordering::Relaxed) as u8)
- }
-
- fn insert(&self, flags: ElementFlags) {
- self.0.fetch_or(flags.bits() as usize, Ordering::Relaxed);
- }
-}
-
/// A holder for an element's "tag name", which will be lazily
/// resolved and cached. Should be reset when the document
/// owner changes.
diff --git a/components/script/dom/node.rs b/components/script/dom/node.rs
index 37b5764c174..df335be75a6 100644
--- a/components/script/dom/node.rs
+++ b/components/script/dom/node.rs
@@ -67,7 +67,7 @@ use script_layout_interface::{LayoutElementType, LayoutNodeType, TrustedNodeAddr
use script_layout_interface::message::Msg;
use script_traits::DocumentActivity;
use script_traits::UntrustedNodeAddress;
-use selectors::matching::{MatchingReason, matches};
+use selectors::matching::matches;
use selectors::parser::SelectorList;
use servo_url::ServoUrl;
use std::borrow::ToOwned;
@@ -322,7 +322,7 @@ impl<'a> Iterator for QuerySelectorIterator {
// (instead of passing `None`)? Probably.
self.iterator.by_ref().filter_map(|node| {
if let Some(element) = Root::downcast(node) {
- if matches(selectors, &element, None, MatchingReason::Other) {
+ if matches(selectors, &element, None) {
return Some(Root::upcast(element));
}
}
@@ -685,7 +685,7 @@ impl Node {
// Step 3.
Ok(selectors) => {
Ok(self.traverse_preorder().filter_map(Root::downcast).find(|element| {
- matches(&selectors.0, element, None, MatchingReason::Other)
+ matches(&selectors.0, element, None)
}))
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-30 09:32:11 +0000