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Implement NonElementParentNode for DocumentFragment

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This commit is contained in:
Anthony Ramine 2015-09-10 01:33:13 +02:00
parent 3f5b3053b9
commit dc125f9eb1
3 changed files with 14 additions and 9 deletions
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13
components/script/dom/documentfragment.rs
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@ -17,6 +17,7 @@ use dom::eventtarget::{EventTarget, EventTargetTypeId};
use dom::htmlcollection::HTMLCollection;
use dom::node::{Node, NodeTypeId, window_from_node};
use dom::nodelist::NodeList;
use string_cache::Atom;
use util::str::DOMString;
// https://dom.spec.whatwg.org/#documentfragment
@ -58,6 +59,18 @@ impl DocumentFragmentMethods for DocumentFragment {
HTMLCollection::children(window.r(), NodeCast::from_ref(self))
}
// https://dom.spec.whatwg.org/#dom-nonelementparentnode-getelementbyid
fn GetElementById(&self, id: DOMString) -> Option<Root<Element>> {
let node = NodeCast::from_ref(self);
let id = Atom::from_slice(&id);
node.traverse_preorder().filter_map(ElementCast::to_root).find(|descendant| {
match descendant.get_attribute(&ns!(""), &atom!(id)) {
None => false,
Some(attr) => *attr.value().as_atom() == id,
}
})
}
// https://dom.spec.whatwg.org/#dom-parentnode-firstelementchild
fn GetFirstElementChild(&self) -> Option<Root<Element>> {
NodeCast::from_ref(self).child_elements().next()