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script: Support custom element states (#38564)

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Also adds support for `:state`.

Testing: Covered by existing tests

---------

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
This commit is contained in:
Simon Wülker 2025-08-27 19:25:16 +02:00 • committed by GitHub
parent dcd25072d3
commit 04dd74dddb
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20 changed files with 209 additions and 152 deletions
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26
components/script/dom/element.rs
View file

@ -1325,6 +1325,9 @@ pub(crate) trait LayoutElementHelpers<'dom> {
) -> Option<&'dom AttrValue>;
fn get_attr_val_for_layout(self, namespace: &Namespace, name: &LocalName) -> Option<&'dom str>;
fn get_attr_vals_for_layout(self, name: &LocalName) -> Vec<&'dom AttrValue>;
fn each_custom_state<F>(self, callback: F)
where
F: FnMut(&AtomIdent);
}
impl LayoutDom<'_, Element> {
@ -1819,6 +1822,13 @@ impl<'dom> LayoutElementHelpers<'dom> for LayoutDom<'dom, Element> {
})
.collect()
}
fn each_custom_state<F>(self, callback: F)
where
F: FnMut(&AtomIdent),
{
self.unsafe_get().each_custom_state(callback)
}
}
impl Element {
@ -5196,12 +5206,24 @@ impl SelectorsElement for SelectorWrapper<'_> {
true
}
fn has_custom_state(&self, _name: &AtomIdent) -> bool {
false
fn has_custom_state(&self, name: &AtomIdent) -> bool {
let mut has_state = false;
self.each_custom_state(|state| has_state |= state == name);
has_state
}
}
impl Element {
fn each_custom_state<F>(&self, callback: F)
where
F: FnMut(&AtomIdent),
{
self.get_element_internals()
.and_then(|internals| internals.custom_states())
.inspect(|states| states.for_each_state(callback));
}
fn client_rect(&self) -> Rect<i32> {
let doc = self.node.owner_doc();