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Cache the first base element with an href attribute on the Document.
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parent
bd31b51a87
commit
6951119f5e
2 changed files with 56 additions and 3 deletions
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@ -155,6 +155,8 @@ pub struct Document {
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current_parser: MutNullableHeap<JS<ServoHTMLParser>>,
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/// When we should kick off a reflow. This happens during parsing.
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reflow_timeout: Cell<Option<u64>>,
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/// The cached first `base` element with an `href` attribute.
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base_element: MutNullableHeap<JS<HTMLBaseElement>>,
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}
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impl PartialEq for Document {
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@ -241,6 +243,8 @@ pub trait DocumentHelpers<'a> {
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fn base_url(self) -> Url;
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/// Returns the first `base` element in the DOM that has an `href` attribute.
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fn base_element(self) -> Option<Root<HTMLBaseElement>>;
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/// Refresh the cached first base element in the DOM.
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fn refresh_base_element(self);
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fn quirks_mode(self) -> QuirksMode;
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fn set_quirks_mode(self, mode: QuirksMode);
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fn set_encoding_name(self, name: DOMString);
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@ -370,11 +374,17 @@ impl<'a> DocumentHelpers<'a> for &'a Document {
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/// Returns the first `base` element in the DOM that has an `href` attribute.
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fn base_element(self) -> Option<Root<HTMLBaseElement>> {
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NodeCast::from_ref(self)
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self.base_element.get().map(Root::from_rooted)
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}
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/// Refresh the cached first base element in the DOM.
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fn refresh_base_element(self) {
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let base = NodeCast::from_ref(self)
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.traverse_preorder()
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.filter_map(HTMLBaseElementCast::to_root)
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.filter(|element| ElementCast::from_ref(&**element).has_attribute(&atom!("href")))
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.next()
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.next();
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self.base_element.set(base.map(|element| JS::from_ref(&*element)));
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}
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fn quirks_mode(self) -> QuirksMode {
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@ -1131,6 +1141,7 @@ impl Document {
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loader: DOMRefCell::new(doc_loader),
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current_parser: Default::default(),
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reflow_timeout: Cell::new(None),
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base_element: Default::default(),
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}
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}
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