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auto merge of #4219 : Ms2ger/servo/cleanup-document, r=jdm

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bors-servo 2014-12-04 08:46:02 -07:00
commit 92a8c7a80c
1 changed files with 21 additions and 25 deletions
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46
components/script/dom/document.rs
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@ -520,18 +520,16 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
// http://dom.spec.whatwg.org/#dom-document-doctype
fn GetDoctype(self) -> Option<Temporary<DocumentType>> {
let node: JSRef<Node> = NodeCast::from_ref(self);
node.children().find(|child| {
child.is_doctype()
}).map(|node| {
let doctype: JSRef<DocumentType> = DocumentTypeCast::to_ref(node).unwrap();
Temporary::from_rooted(doctype)
})
node.children()
.filter_map(DocumentTypeCast::to_ref)
.next()
.map(Temporary::from_rooted)
}
// http://dom.spec.whatwg.org/#dom-document-documentelement
fn GetDocumentElement(self) -> Option<Temporary<Element>> {
let node: JSRef<Node> = NodeCast::from_ref(self);
node.child_elements().next().map(|elem| Temporary::from_rooted(elem))
node.child_elements().next().map(Temporary::from_rooted)
}
// http://dom.spec.whatwg.org/#dom-document-getelementsbytagname
@ -823,21 +821,21 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
// http://www.whatwg.org/specs/web-apps/current-work/#dom-document-body
fn SetBody(self, new_body: Option<JSRef<HTMLElement>>) -> ErrorResult {
// Step 1.
match new_body {
Some(ref htmlelem) => {
let node: JSRef<Node> = NodeCast::from_ref(*htmlelem);
match node.type_id() {
ElementNodeTypeId(HTMLBodyElementTypeId) | ElementNodeTypeId(HTMLFrameSetElementTypeId) => {}
_ => return Err(HierarchyRequest)
}
}
None => return Err(HierarchyRequest)
let new_body = match new_body {
Some(new_body) => new_body,
None => return Err(HierarchyRequest),
};
let node: JSRef<Node> = NodeCast::from_ref(new_body);
match node.type_id() {
ElementNodeTypeId(HTMLBodyElementTypeId) |
ElementNodeTypeId(HTMLFrameSetElementTypeId) => {}
_ => return Err(HierarchyRequest)
}
// Step 2.
let old_body = self.GetBody().root();
//FIXME: covariant lifetime workaround. do not judge.
if old_body.as_ref().map(|body| body.deref()) == new_body.as_ref().map(|a| &*a) {
if old_body.as_ref().map(|body| **body) == Some(new_body) {
return Ok(());
}
@ -846,8 +844,7 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
// Step 4.
None => return Err(HierarchyRequest),
Some(ref root) => {
let new_body_unwrapped = new_body.unwrap();
let new_body: JSRef<Node> = NodeCast::from_ref(new_body_unwrapped);
let new_body: JSRef<Node> = NodeCast::from_ref(new_body);
let root: JSRef<Node> = NodeCast::from_ref(**root);
match old_body {
@ -866,11 +863,10 @@ impl<'a> DocumentMethods for JSRef<'a, Document> {
// http://www.whatwg.org/specs/web-apps/current-work/#dom-document-getelementsbyname
fn GetElementsByName(self, name: DOMString) -> Temporary<NodeList> {
self.createNodeList(|node| {
if !node.is_element() {
return false;
}
let element: JSRef<Element> = ElementCast::to_ref(node).unwrap();
let element: JSRef<Element> = match ElementCast::to_ref(node) {
Some(element) => element,
None => return false,
};
element.get_attribute(ns!(""), &atom!("name")).root().map_or(false, |attr| {
attr.value().as_slice() == name.as_slice()
})