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Cleanup Document.find_fragment_node.

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This commit is contained in:
Ms2ger 2014-10-02 19:53:28 +02:00
parent 76d1d78cc0
commit c96018152f
1 changed files with 11 additions and 7 deletions
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18
components/script/dom/document.rs
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@ -12,7 +12,7 @@ use dom::bindings::codegen::Bindings::WindowBinding::WindowMethods;
use dom::bindings::codegen::InheritTypes::{DocumentDerived, EventCast, HTMLElementCast};
use dom::bindings::codegen::InheritTypes::{HTMLHeadElementCast, TextCast, ElementCast};
use dom::bindings::codegen::InheritTypes::{DocumentTypeCast, HTMLHtmlElementCast, NodeCast};
use dom::bindings::codegen::InheritTypes::EventTargetCast;
use dom::bindings::codegen::InheritTypes::{EventTargetCast, HTMLAnchorElementCast};
use dom::bindings::codegen::InheritTypes::{HTMLAnchorElementDerived, HTMLAppletElementDerived};
use dom::bindings::codegen::InheritTypes::{HTMLAreaElementDerived, HTMLEmbedElementDerived};
use dom::bindings::codegen::InheritTypes::{HTMLFormElementDerived, HTMLImageElementDerived};
@ -36,6 +36,7 @@ use dom::element::{HTMLHtmlElementTypeId, HTMLHeadElementTypeId, HTMLTitleElemen
use dom::element::{HTMLBodyElementTypeId, HTMLFrameSetElementTypeId};
use dom::event::Event;
use dom::eventtarget::{EventTarget, NodeTargetTypeId, EventTargetHelpers};
use dom::htmlanchorelement::HTMLAnchorElement;
use dom::htmlcollection::{HTMLCollection, CollectionFilter};
use dom::htmlelement::HTMLElement;
use dom::htmlheadelement::HTMLHeadElement;
@ -279,19 +280,22 @@ impl<'a> DocumentHelpers<'a> for JSRef<'a, Document> {
}
/// Attempt to find a named element in this page's document.
/// https://html.spec.whatwg.org/multipage/#the-indicated-part-of-the-document
fn find_fragment_node(self, fragid: DOMString) -> Option<Temporary<Element>> {
match self.GetElementById(fragid.clone()) {
Some(node) => Some(node),
None => {
let doc_node: JSRef<Node> = NodeCast::from_ref(self);
let mut anchors = doc_node.traverse_preorder()
.filter(|node| node.is_anchor_element());
anchors.find(|node| {
let elem: JSRef<Element> = ElementCast::to_ref(*node).unwrap();
let check_anchor = |&node: &JSRef<HTMLAnchorElement>| {
let elem: JSRef<Element> = ElementCast::from_ref(node);
elem.get_attribute(ns!(""), "name").root().map_or(false, |attr| {
attr.deref().value().as_slice() == fragid.as_slice()
})
}).map(|node| Temporary::from_rooted(ElementCast::to_ref(node).unwrap()))
};
let doc_node: JSRef<Node> = NodeCast::from_ref(self);
doc_node.traverse_preorder()
.filter_map(|node| HTMLAnchorElementCast::to_ref(node))
.find(check_anchor)
.map(|node| Temporary::from_rooted(ElementCast::from_ref(node)))
}
}
}