mirror of
https://github.com/servo/servo
synced 2026-04-25 17:15:48 +02:00
8eafa6e9ad
Servo has had two implementations of `selectors::Element`, one used during layout and one used for `Element#matches()` and `Element#closest()`. The DOM APIs can trivially use the version that's exposed to the layout interface, which allows removing the duplicated implementation. This will eliminate code and prevent the two implementations from drifting apart. Testing: This should not change behavior in a testable way so should be covered by existing tests. Signed-off-by: Martin Robinson <mrobinson@fastmail.fm> Co-authored-by: Martin Robinson <mrobinson@fastmail.fm>
105 lines
3.0 KiB
Rust
105 lines
3.0 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
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use dom_struct::dom_struct;
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use indexmap::IndexSet;
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use script_bindings::codegen::GenericBindings::ElementInternalsBinding::CustomStateSetMethods;
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use script_bindings::like::Setlike;
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use script_bindings::root::{Dom, DomRoot};
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use script_bindings::script_runtime::CanGc;
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use script_bindings::str::DOMString;
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use script_bindings::trace::CustomTraceable;
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use crate::dom::bindings::cell::DomRefCell;
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use crate::dom::bindings::inheritance::Castable;
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use crate::dom::bindings::reflector::{Reflector, reflect_dom_object};
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use crate::dom::html::htmlelement::HTMLElement;
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use crate::dom::node::{Node, NodeDamage};
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use crate::dom::window::Window;
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/// <https://html.spec.whatwg.org/multipage/#customstateset>
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#[dom_struct]
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pub(crate) struct CustomStateSet {
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reflector: Reflector,
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internal: DomRefCell<IndexSet<DOMString>>,
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owner_element: Dom<HTMLElement>,
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}
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impl CustomStateSet {
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fn new_inherited(element: &HTMLElement) -> Self {
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Self {
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reflector: Reflector::new(),
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internal: DomRefCell::new(Default::default()),
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owner_element: Dom::from_ref(element),
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}
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}
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pub(crate) fn new(window: &Window, element: &HTMLElement, can_gc: CanGc) -> DomRoot<Self> {
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reflect_dom_object(Box::new(Self::new_inherited(element)), window, can_gc)
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}
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/// Returns a borrowed version of the set without the usual Ref wrapper.
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/// Mutating the underlying refcell while this value is active is
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/// undefined behaviour.
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#[expect(unsafe_code)]
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pub(crate) unsafe fn set_for_layout(&self) -> &IndexSet<DOMString> {
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unsafe { self.internal.borrow_for_layout() }
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}
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fn states_did_change(&self) {
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self.owner_element.upcast::<Node>().dirty(NodeDamage::Other);
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}
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}
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impl Setlike for CustomStateSet {
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type Key = DOMString;
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#[inline(always)]
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fn get_index(&self, index: u32) -> Option<Self::Key> {
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self.internal.get_index(index)
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}
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#[inline(always)]
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fn size(&self) -> u32 {
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self.internal.size()
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}
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#[inline(always)]
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fn add(&self, key: Self::Key) {
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self.internal.add(key);
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self.states_did_change();
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}
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#[inline(always)]
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fn has(&self, key: Self::Key) -> bool {
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self.internal.has(key)
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}
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#[inline(always)]
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fn clear(&self) {
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let old_size = self.internal.size();
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self.internal.clear();
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if old_size != 0 {
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self.states_did_change();
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}
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}
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#[inline(always)]
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fn delete(&self, key: Self::Key) -> bool {
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if self.internal.delete(key) {
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self.states_did_change();
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true
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} else {
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false
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}
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}
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}
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impl CustomStateSetMethods<crate::DomTypeHolder> for CustomStateSet {
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/// <https://html.spec.whatwg.org/multipage/#customstateset>
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fn Size(&self) -> u32 {
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self.internal.size()
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}
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}
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