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style: Invalidate parts in nested shadow trees correctly.

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Differential Revision: https://phabricator.services.mozilla.com/D54010
This commit is contained in:
Emilio Cobos Álvarez 2019-11-21 10:32:10 +00:00
parent e3009a4de9
commit f8ceb5cb84
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6 changed files with 104 additions and 43 deletions
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20
components/style/gecko/snapshot_helpers.rs
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@ -82,6 +82,26 @@ pub fn get_id(attrs: &[structs::AttrArray_InternalAttr]) -> Option<&WeakAtom> {
Some(unsafe { get_id_from_attr(find_attr(attrs, &atom!("id"))?) })
}
#[inline(always)]
pub(super) fn exported_part(attrs: &[structs::AttrArray_InternalAttr], name: &Atom) -> Option<Atom> {
let attr = find_attr(attrs, &atom!("exportparts"))?;
let atom = unsafe { bindings::Gecko_Element_ExportedPart(attr, name.as_ptr()) };
if atom.is_null() {
return None;
}
Some(unsafe { Atom::from_raw(atom) })
}
#[inline(always)]
pub(super) fn imported_part(attrs: &[structs::AttrArray_InternalAttr], name: &Atom) -> Option<Atom> {
let attr = find_attr(attrs, &atom!("exportparts"))?;
let atom = unsafe { bindings::Gecko_Element_ImportedPart(attr, name.as_ptr()) };
if atom.is_null() {
return None;
}
Some(unsafe { Atom::from_raw(atom) })
}
/// Given a class or part name, a case sensitivity, and an array of attributes,
/// returns whether the attribute has that name.
#[inline(always)]