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Make StyleSheetListOwner an enum instead of a trait object
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7 changed files with 177 additions and 134 deletions
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@ -5,33 +5,76 @@
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use crate::dom::bindings::codegen::Bindings::StyleSheetListBinding;
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use crate::dom::bindings::codegen::Bindings::StyleSheetListBinding::StyleSheetListMethods;
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use crate::dom::bindings::reflector::{reflect_dom_object, Reflector};
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use crate::dom::bindings::root::DomRoot;
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use crate::dom::bindings::trace::JSTraceable;
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use crate::dom::bindings::root::{Dom, DomRoot};
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use crate::dom::cssstylesheet::CSSStyleSheet;
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use crate::dom::document::Document;
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use crate::dom::element::Element;
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use crate::dom::shadowroot::ShadowRoot;
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use crate::dom::stylesheet::StyleSheet;
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use crate::dom::window::Window;
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use dom_struct::dom_struct;
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use servo_arc::Arc;
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use style::stylesheets::Stylesheet;
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pub trait StyleSheetListOwner: JSTraceable {
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fn stylesheet_count(&self) -> usize;
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fn stylesheet_at(&self, index: usize) -> Option<DomRoot<CSSStyleSheet>>;
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fn add_stylesheet(&self, owner: &Element, sheet: Arc<Stylesheet>);
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fn remove_stylesheet(&self, owner: &Element, s: &Arc<Stylesheet>);
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fn invalidate_stylesheets(&self);
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#[must_root]
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#[derive(JSTraceable, MallocSizeOf)]
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pub enum StyleSheetListOwner {
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Document(Dom<Document>),
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ShadowRoot(Dom<ShadowRoot>),
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}
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impl StyleSheetListOwner {
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pub fn stylesheet_count(&self) -> usize {
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match *self {
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StyleSheetListOwner::Document(ref doc) => doc.stylesheet_count(),
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StyleSheetListOwner::ShadowRoot(ref shadow_root) => shadow_root.stylesheet_count(),
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}
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}
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pub fn stylesheet_at(&self, index: usize) -> Option<DomRoot<CSSStyleSheet>> {
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match *self {
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StyleSheetListOwner::Document(ref doc) => doc.stylesheet_at(index),
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StyleSheetListOwner::ShadowRoot(ref shadow_root) => shadow_root.stylesheet_at(index),
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}
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}
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pub fn add_stylesheet(&self, owner: &Element, sheet: Arc<Stylesheet>) {
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match *self {
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StyleSheetListOwner::Document(ref doc) => doc.add_stylesheet(owner, sheet),
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StyleSheetListOwner::ShadowRoot(ref shadow_root) => {
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shadow_root.add_stylesheet(owner, sheet)
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},
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}
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}
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pub fn remove_stylesheet(&self, owner: &Element, s: &Arc<Stylesheet>) {
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match *self {
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StyleSheetListOwner::Document(ref doc) => doc.remove_stylesheet(owner, s),
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StyleSheetListOwner::ShadowRoot(ref shadow_root) => {
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shadow_root.remove_stylesheet(owner, s)
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},
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}
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}
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pub fn invalidate_stylesheets(&self) {
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match *self {
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StyleSheetListOwner::Document(ref doc) => doc.invalidate_stylesheets(),
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StyleSheetListOwner::ShadowRoot(ref shadow_root) => {
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shadow_root.invalidate_stylesheets()
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},
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}
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}
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}
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#[dom_struct]
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pub struct StyleSheetList {
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reflector_: Reflector,
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#[ignore_malloc_size_of = "trait object"]
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document_or_shadow_root: Box<StyleSheetListOwner>,
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document_or_shadow_root: StyleSheetListOwner,
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}
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impl StyleSheetList {
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fn new_inherited(doc_or_sr: Box<StyleSheetListOwner>) -> StyleSheetList {
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#[allow(unrooted_must_root)]
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fn new_inherited(doc_or_sr: StyleSheetListOwner) -> StyleSheetList {
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StyleSheetList {
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reflector_: Reflector::new(),
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document_or_shadow_root: doc_or_sr,
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@ -39,7 +82,7 @@ impl StyleSheetList {
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}
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#[allow(unrooted_must_root)]
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pub fn new(window: &Window, doc_or_sr: Box<StyleSheetListOwner>) -> DomRoot<StyleSheetList> {
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pub fn new(window: &Window, doc_or_sr: StyleSheetListOwner) -> DomRoot<StyleSheetList> {
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reflect_dom_object(
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Box::new(StyleSheetList::new_inherited(doc_or_sr)),
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window,
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