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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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19
components/script/dom/htmlmetaelement.rs
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@ -8,13 +8,14 @@ use dom::bindings::codegen::Bindings::HTMLMetaElementBinding;
use dom::bindings::codegen::Bindings::HTMLMetaElementBinding::HTMLMetaElementMethods;
use dom::bindings::codegen::Bindings::NodeBinding::NodeMethods;
use dom::bindings::inheritance::Castable;
use dom::bindings::js::{Root, RootedReference};
use dom::bindings::js::{JS, MutNullableHeap, Root, RootedReference};
use dom::bindings::str::DOMString;
use dom::cssstylesheet::CSSStyleSheet;
use dom::document::Document;
use dom::element::{AttributeMutation, Element};
use dom::htmlelement::HTMLElement;
use dom::htmlheadelement::HTMLHeadElement;
use dom::node::{Node, UnbindContext, document_from_node};
use dom::node::{Node, UnbindContext, document_from_node, window_from_node};
use dom::virtualmethods::VirtualMethods;
use html5ever_atoms::LocalName;
use parking_lot::RwLock;
@ -30,6 +31,7 @@ pub struct HTMLMetaElement {
htmlelement: HTMLElement,
#[ignore_heap_size_of = "Arc"]
stylesheet: DOMRefCell<Option<Arc<Stylesheet>>>,
cssom_stylesheet: MutNullableHeap<JS<CSSStyleSheet>>,
}
impl HTMLMetaElement {
@ -39,6 +41,7 @@ impl HTMLMetaElement {
HTMLMetaElement {
htmlelement: HTMLElement::new_inherited(local_name, prefix, document),
stylesheet: DOMRefCell::new(None),
cssom_stylesheet: MutNullableHeap::new(None),
}
}
@ -55,6 +58,18 @@ impl HTMLMetaElement {
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)
})
})
}
fn process_attributes(&self) {
let element = self.upcast::<Element>();
if let Some(name) = element.get_attribute(&ns!(), &local_name!("name")).r() {