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Implement ElementInternals::shadowRoot (#35923)

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* Implement ElementInternals::shadowRoot

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Update WPT expectations

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

---------

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
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Simon Wülker 2025-03-12 01:09:32 +01:00 • committed by GitHub
parent f527217bdc
commit 8034216d06
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7 changed files with 44 additions and 12 deletions
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17
components/script/dom/elementinternals.rs
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@ -23,6 +23,7 @@ use crate::dom::htmlelement::HTMLElement;
use crate::dom::htmlformelement::{FormDatum, FormDatumValue, HTMLFormElement};
use crate::dom::node::{Node, NodeTraits};
use crate::dom::nodelist::NodeList;
use crate::dom::shadowroot::ShadowRoot;
use crate::dom::validation::{Validatable, is_barred_by_datalist_ancestor};
use crate::dom::validitystate::{ValidationFlags, ValidityState};
use crate::script_runtime::CanGc;
@ -188,6 +189,22 @@ impl ElementInternals {
}
impl ElementInternalsMethods<crate::DomTypeHolder> for ElementInternals {
/// <https://html.spec.whatwg.org/multipage/#dom-elementinternals-shadowroot>
fn GetShadowRoot(&self) -> Option<DomRoot<ShadowRoot>> {
// Step 1. Let target be this's target element.
// Step 2. If target is not a shadow host, then return null.
// Step 3. Let shadow be target's shadow root.
let shadow = self.target_element.upcast::<Element>().shadow_root()?;
// Step 4. If shadow's available to element internals is false, then return null.
if !shadow.is_available_to_element_internals() {
return None;
}
// Step 5. Return shadow.
Some(shadow)
}
/// <https://html.spec.whatwg.org/multipage#dom-elementinternals-setformvalue>
fn SetFormValue(
&self,