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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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30
components/script/dom/node.rs
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@ -30,6 +30,7 @@ use dom::bindings::reflector::{Reflectable, reflect_dom_object};
use dom::bindings::str::{DOMString, USVString};
use dom::bindings::xmlname::namespace_from_domstring;
use dom::characterdata::{CharacterData, LayoutCharacterDataHelpers};
use dom::cssstylesheet::CSSStyleSheet;
use dom::document::{Document, DocumentSource, IsHTMLDocument};
use dom::documentfragment::DocumentFragment;
use dom::documenttype::DocumentType;
@ -43,6 +44,9 @@ use dom::htmlelement::HTMLElement;
use dom::htmliframeelement::{HTMLIFrameElement, HTMLIFrameElementLayoutMethods};
use dom::htmlimageelement::{HTMLImageElement, LayoutHTMLImageElementHelpers};
use dom::htmlinputelement::{HTMLInputElement, LayoutHTMLInputElementHelpers};
use dom::htmllinkelement::HTMLLinkElement;
use dom::htmlmetaelement::HTMLMetaElement;
use dom::htmlstyleelement::HTMLStyleElement;
use dom::htmltextareaelement::{HTMLTextAreaElement, LayoutHTMLTextAreaElementHelpers};
use dom::nodelist::NodeList;
use dom::processinginstruction::ProcessingInstruction;
@ -76,8 +80,10 @@ use std::default::Default;
use std::iter;
use std::mem;
use std::ops::Range;
use std::sync::Arc;
use style::dom::OpaqueNode;
use style::selector_impl::ServoSelectorImpl;
use style::stylesheets::Stylesheet;
use style::thread_state;
use url::Url;
use uuid::Uuid;
@ -901,6 +907,30 @@ impl Node {
element.upcast::<Node>().remove_self();
Ok(())
}
pub fn get_stylesheet(&self) -> Option<Arc<Stylesheet>> {
if let Some(node) = self.downcast::<HTMLStyleElement>() {
node.get_stylesheet()
} else if let Some(node) = self.downcast::<HTMLLinkElement>() {
node.get_stylesheet()
} else if let Some(node) = self.downcast::<HTMLMetaElement>() {
node.get_stylesheet()
} else {
None
}
}
pub fn get_cssom_stylesheet(&self) -> Option<Root<CSSStyleSheet>> {
if let Some(node) = self.downcast::<HTMLStyleElement>() {
node.get_cssom_stylesheet()
} else if let Some(node) = self.downcast::<HTMLLinkElement>() {
node.get_cssom_stylesheet()
} else if let Some(node) = self.downcast::<HTMLMetaElement>() {
node.get_cssom_stylesheet()
} else {
None
}
}
}