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Support basic immutable CSSOM
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parent
2220fcdc0b
commit
177d6fa4ee
33 changed files with 861 additions and 43 deletions
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@ -14,6 +14,7 @@ use dom::bindings::js::{JS, MutNullableHeap, Root, RootedReference};
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use dom::bindings::refcounted::Trusted;
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use dom::bindings::reflector::Reflectable;
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use dom::bindings::str::DOMString;
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use dom::cssstylesheet::CSSStyleSheet;
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use dom::document::Document;
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use dom::domtokenlist::DOMTokenList;
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use dom::element::{AttributeMutation, Element, ElementCreator};
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@ -56,6 +57,7 @@ pub struct HTMLLinkElement {
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rel_list: MutNullableHeap<JS<DOMTokenList>>,
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#[ignore_heap_size_of = "Arc"]
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stylesheet: DOMRefCell<Option<Arc<Stylesheet>>>,
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cssom_stylesheet: MutNullableHeap<JS<CSSStyleSheet>>,
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/// https://html.spec.whatwg.org/multipage/#a-style-sheet-that-is-blocking-scripts
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parser_inserted: Cell<bool>,
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@ -69,6 +71,7 @@ impl HTMLLinkElement {
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rel_list: Default::default(),
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parser_inserted: Cell::new(creator == ElementCreator::ParserCreated),
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stylesheet: DOMRefCell::new(None),
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cssom_stylesheet: MutNullableHeap::new(None),
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}
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}
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@ -85,6 +88,18 @@ impl HTMLLinkElement {
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pub fn get_stylesheet(&self) -> Option<Arc<Stylesheet>> {
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self.stylesheet.borrow().clone()
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}
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pub fn get_cssom_stylesheet(&self) -> Option<Root<CSSStyleSheet>> {
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self.get_stylesheet().map(|sheet| {
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self.cssom_stylesheet.or_init(|| {
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CSSStyleSheet::new(&window_from_node(self),
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"text/css".into(),
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None, // todo handle location
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None, // todo handle title
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sheet)
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})
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})
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}
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}
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fn get_attr(element: &Element, local_name: &LocalName) -> Option<String> {
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