servo/components/script/dom/documentfragment.rs
Anthony Ramine 7d6ea83479 Explicitly customise flags of new nodes where needed
Given codegen now generates the various TypeId enums, it seems pointless to
still have to write their respective values in every DOM struct inheriting from
Node just to set the initial IS_IN_DOC flag in Document and IN_ENABLED_STATE in
form controls.
2015-10-15 17:30:41 +02:00

102 lines
3.8 KiB
Rust

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use dom::bindings::codegen::Bindings::DocumentFragmentBinding;
use dom::bindings::codegen::Bindings::DocumentFragmentBinding::DocumentFragmentMethods;
use dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
use dom::bindings::codegen::InheritTypes::{ElementCast, NodeCast};
use dom::bindings::codegen::UnionTypes::NodeOrString;
use dom::bindings::error::{ErrorResult, Fallible};
use dom::bindings::global::GlobalRef;
use dom::bindings::js::Root;
use dom::document::Document;
use dom::element::Element;
use dom::htmlcollection::HTMLCollection;
use dom::node::{Node, window_from_node};
use dom::nodelist::NodeList;
use string_cache::Atom;
use util::str::DOMString;
// https://dom.spec.whatwg.org/#documentfragment
#[dom_struct]
pub struct DocumentFragment {
node: Node,
}
impl DocumentFragment {
/// Creates a new DocumentFragment.
fn new_inherited(document: &Document) -> DocumentFragment {
DocumentFragment {
node: Node::new_inherited(document),
}
}
pub fn new(document: &Document) -> Root<DocumentFragment> {
Node::reflect_node(box DocumentFragment::new_inherited(document),
document, DocumentFragmentBinding::Wrap)
}
pub fn Constructor(global: GlobalRef) -> Fallible<Root<DocumentFragment>> {
let document = global.as_window().Document();
Ok(DocumentFragment::new(document.r()))
}
}
impl DocumentFragmentMethods for DocumentFragment {
// https://dom.spec.whatwg.org/#dom-parentnode-children
fn Children(&self) -> Root<HTMLCollection> {
let window = window_from_node(self);
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()
}
// https://dom.spec.whatwg.org/#dom-parentnode-lastelementchild
fn GetLastElementChild(&self) -> Option<Root<Element>> {
NodeCast::from_ref(self).rev_children().filter_map(ElementCast::to_root).next()
}
// https://dom.spec.whatwg.org/#dom-parentnode-childelementcount
fn ChildElementCount(&self) -> u32 {
NodeCast::from_ref(self).child_elements().count() as u32
}
// https://dom.spec.whatwg.org/#dom-parentnode-prepend
fn Prepend(&self, nodes: Vec<NodeOrString>) -> ErrorResult {
NodeCast::from_ref(self).prepend(nodes)
}
// https://dom.spec.whatwg.org/#dom-parentnode-append
fn Append(&self, nodes: Vec<NodeOrString>) -> ErrorResult {
NodeCast::from_ref(self).append(nodes)
}
// https://dom.spec.whatwg.org/#dom-parentnode-queryselector
fn QuerySelector(&self, selectors: DOMString) -> Fallible<Option<Root<Element>>> {
let root = NodeCast::from_ref(self);
root.query_selector(selectors)
}
// https://dom.spec.whatwg.org/#dom-parentnode-queryselectorall
fn QuerySelectorAll(&self, selectors: DOMString) -> Fallible<Root<NodeList>> {
let root = NodeCast::from_ref(self);
root.query_selector_all(selectors)
}
}