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Implement Document's 'body' attribute

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Implement Document's 'body' attribute (getter and setter). Proper
implementation of setter requires Node::ReplaceChild(), which is
currently a stub and will be done on a later step.

This patch is for:
https://github.com/mozilla/servo/issues/1428
This commit is contained in:
Bruno de Oliveira Abinader 2013-12-18 17:17:43 -04:00
parent 824c7ac613
commit ce434dfb3e
5 changed files with 140 additions and 3 deletions
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61
src/components/script/dom/document.rs
View file

@ -5,12 +5,12 @@
use dom::comment::Comment;
use dom::bindings::codegen::DocumentBinding;
use dom::bindings::utils::{Reflectable, Reflector, Traceable, reflect_dom_object};
use dom::bindings::utils::{ErrorResult, Fallible, NotSupported, InvalidCharacter};
use dom::bindings::utils::{ErrorResult, Fallible, NotSupported, InvalidCharacter, HierarchyRequest};
use dom::bindings::utils::DOMString;
use dom::bindings::utils::{xml_name_type, InvalidXMLName};
use dom::documentfragment::DocumentFragment;
use dom::element::{Element};
use dom::element::{HTMLHeadElementTypeId, HTMLTitleElementTypeId};
use dom::element::{HTMLHtmlElementTypeId, HTMLHeadElementTypeId, HTMLTitleElementTypeId, HTMLBodyElementTypeId, HTMLFrameSetElementTypeId};
use dom::event::{AbstractEvent, Event};
use dom::htmlcollection::HTMLCollection;
use dom::htmldocument::HTMLDocument;
@ -295,6 +295,63 @@ impl Document {
Ok(())
}
fn get_html_element(&self) -> Option<AbstractNode> {
do self.GetDocumentElement().filtered |root| {
match root.type_id() {
ElementNodeTypeId(HTMLHtmlElementTypeId) => true,
_ => false
}
}
}
pub fn GetBody(&self, _: AbstractDocument) -> Option<AbstractNode> {
match self.get_html_element() {
None => None,
Some(root) => {
do root.children().find |child| {
match child.type_id() {
ElementNodeTypeId(HTMLBodyElementTypeId) |
ElementNodeTypeId(HTMLFrameSetElementTypeId) => true,
_ => false
}
}
}
}
}
// http://www.whatwg.org/specs/web-apps/current-work/#dom-document-body
pub fn SetBody(&self, abstract_self: AbstractDocument, new_body: Option<AbstractNode>) -> ErrorResult {
// Step 1.
match new_body {
Some(node) => {
match node.type_id() {
ElementNodeTypeId(HTMLBodyElementTypeId) | ElementNodeTypeId(HTMLFrameSetElementTypeId) => {}
_ => return Err(HierarchyRequest)
}
}
None => return Err(HierarchyRequest)
}
// Step 2.
let old_body: Option<AbstractNode> = self.GetBody(abstract_self);
if old_body == new_body {
return Ok(());
}
// Step 3.
match self.get_html_element() {
// Step 4.
None => return Err(HierarchyRequest),
Some(root) => {
match old_body {
Some(child) => { root.ReplaceChild(new_body.unwrap(), child); }
None => { root.AppendChild(new_body.unwrap()); }
}
}
}
Ok(())
}
pub fn GetElementsByName(&self, name: DOMString) -> @mut HTMLCollection {
self.createHTMLCollection(|elem|
elem.get_attr(None, "name").is_some() && eq_slice(elem.get_attr(None, "name").unwrap(), name))