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Register named elements in either the document or shadow tree

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This commit is contained in:
Fernando Jiménez Moreno 2019-03-05 10:23:18 +01:00
parent ccf8a43649
commit 740aae06ba
6 changed files with 131 additions and 61 deletions
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26
components/script/dom/documentfragment.rs
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@ -2,27 +2,31 @@
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use crate::dom::bindings::cell::DomRefCell;
use crate::dom::bindings::codegen::Bindings::DocumentFragmentBinding;
use crate::dom::bindings::codegen::Bindings::DocumentFragmentBinding::DocumentFragmentMethods;
use crate::dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
use crate::dom::bindings::codegen::UnionTypes::NodeOrString;
use crate::dom::bindings::error::{ErrorResult, Fallible};
use crate::dom::bindings::inheritance::Castable;
use crate::dom::bindings::root::DomRoot;
use crate::dom::bindings::root::{Dom, DomRoot};
use crate::dom::bindings::str::DOMString;
use crate::dom::document::Document;
use crate::dom::element::Element;
use crate::dom::htmlcollection::HTMLCollection;
use crate::dom::node::{window_from_node, Node, ShadowIncluding};
use crate::dom::node::{window_from_node, Node};
use crate::dom::nodelist::NodeList;
use crate::dom::window::Window;
use dom_struct::dom_struct;
use servo_atoms::Atom;
use std::collections::HashMap;
// https://dom.spec.whatwg.org/#documentfragment
#[dom_struct]
pub struct DocumentFragment {
node: Node,
/// Caches for the getElement methods
id_map: DomRefCell<HashMap<Atom, Vec<Dom<Element>>>>,
}
impl DocumentFragment {
@ -30,6 +34,7 @@ impl DocumentFragment {
pub fn new_inherited(document: &Document) -> DocumentFragment {
DocumentFragment {
node: Node::new_inherited(document),
id_map: DomRefCell::new(HashMap::new()),
}
}
@ -46,6 +51,10 @@ impl DocumentFragment {
Ok(DocumentFragment::new(&document))
}
pub fn id_map(&self) -> &DomRefCell<HashMap<Atom, Vec<Dom<Element>>>> {
&self.id_map
}
}
impl DocumentFragmentMethods for DocumentFragment {
@ -57,16 +66,11 @@ impl DocumentFragmentMethods for DocumentFragment {
// https://dom.spec.whatwg.org/#dom-nonelementparentnode-getelementbyid
fn GetElementById(&self, id: DOMString) -> Option<DomRoot<Element>> {
let node = self.upcast::<Node>();
let id = Atom::from(id);
node.traverse_preorder(ShadowIncluding::No)
.filter_map(DomRoot::downcast::<Element>)
.find(
|descendant| match descendant.get_attribute(&ns!(), &local_name!("id")) {
None => false,
Some(attr) => *attr.value().as_atom() == id,
},
)
self.id_map
.borrow()
.get(&id)
.map(|ref elements| DomRoot::from_ref(&*(*elements)[0]))
}
// https://dom.spec.whatwg.org/#dom-parentnode-firstelementchild