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Support basic immutable CSSOM

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This commit is contained in:
Manish Goregaokar 2016-11-10 16:16:56 -08:00
parent 2220fcdc0b
commit 177d6fa4ee
33 changed files with 861 additions and 43 deletions
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17
components/script/dom/htmlstyleelement.rs
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@ -7,8 +7,9 @@ use dom::bindings::cell::DOMRefCell;
use dom::bindings::codegen::Bindings::HTMLStyleElementBinding;
use dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
use dom::bindings::inheritance::Castable;
use dom::bindings::js::Root;
use dom::bindings::js::{JS, MutNullableHeap, Root};
use dom::bindings::str::DOMString;
use dom::cssstylesheet::CSSStyleSheet;
use dom::document::Document;
use dom::element::Element;
use dom::htmlelement::HTMLElement;
@ -26,6 +27,7 @@ pub struct HTMLStyleElement {
htmlelement: HTMLElement,
#[ignore_heap_size_of = "Arc"]
stylesheet: DOMRefCell<Option<Arc<Stylesheet>>>,
cssom_stylesheet: MutNullableHeap<JS<CSSStyleSheet>>,
}
impl HTMLStyleElement {
@ -35,6 +37,7 @@ impl HTMLStyleElement {
HTMLStyleElement {
htmlelement: HTMLElement::new_inherited(local_name, prefix, document),
stylesheet: DOMRefCell::new(None),
cssom_stylesheet: MutNullableHeap::new(None),
}
}
@ -77,6 +80,18 @@ impl HTMLStyleElement {
pub fn get_stylesheet(&self) -> Option<Arc<Stylesheet>> {
self.stylesheet.borrow().clone()
}
pub fn get_cssom_stylesheet(&self) -> Option<Root<CSSStyleSheet>> {
self.get_stylesheet().map(|sheet| {
self.cssom_stylesheet.or_init(|| {
CSSStyleSheet::new(&window_from_node(self),
"text/css".into(),
None, // todo handle location
None, // todo handle title
sheet)
})
})
}
}
impl VirtualMethods for HTMLStyleElement {