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This commit is contained in:
Patrick Shaughnessy 2020-01-02 15:44:29 -05:00
parent 0d142bea9a
commit 036e8dabe2
14 changed files with 161 additions and 102 deletions
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16
components/script/dom/htmlinputelement.rs
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@ -234,6 +234,7 @@ pub struct HTMLInputElement {
filelist: MutNullableDom<FileList>,
form_owner: MutNullableDom<HTMLFormElement>,
labels_node_list: MutNullableDom<NodeList>,
}
#[derive(JSTraceable)]
@ -303,6 +304,7 @@ impl HTMLInputElement {
value_dirty: Cell::new(false),
filelist: MutNullableDom::new(None),
form_owner: Default::default(),
labels_node_list: MutNullableDom::new(None),
}
}
@ -791,12 +793,18 @@ impl HTMLInputElementMethods for HTMLInputElement {
}
// https://html.spec.whatwg.org/multipage/#dom-lfe-labels
fn Labels(&self) -> DomRoot<NodeList> {
// Different from make_labels_getter because this one
// conditionally returns null.
fn GetLabels(&self) -> Option<DomRoot<NodeList>> {
if self.input_type() == InputType::Hidden {
let window = window_from_node(self);
NodeList::empty(&window)
None
} else {
self.upcast::<HTMLElement>().labels()
Some(self.labels_node_list.or_init(|| {
NodeList::new_labels_list(
self.upcast::<Node>().owner_doc().window(),
self.upcast::<HTMLElement>(),
)
}))
}
}