/* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at https://mozilla.org/MPL/2.0/. */ use dom_struct::dom_struct; use servo_arc::Arc; use style::shared_lock::{Locked, ToCssWithGuard}; use style::stylesheets::{CssRuleType, NestedDeclarationsRule}; use crate::dom::bindings::codegen::Bindings::CSSNestedDeclarationsBinding::CSSNestedDeclarationsMethods; use crate::dom::bindings::inheritance::Castable; use crate::dom::bindings::reflector::{DomGlobal, reflect_dom_object}; use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom}; use crate::dom::bindings::str::DOMString; use crate::dom::cssrule::{CSSRule, SpecificCSSRule}; use crate::dom::cssstyledeclaration::{CSSModificationAccess, CSSStyleDeclaration, CSSStyleOwner}; use crate::dom::cssstylesheet::CSSStyleSheet; use crate::dom::window::Window; use crate::script_runtime::CanGc; #[dom_struct] pub(crate) struct CSSNestedDeclarations { cssrule: CSSRule, #[ignore_malloc_size_of = "Arc"] #[no_trace] nesteddeclarationsrule: Arc>, style_decl: MutNullableDom, } impl CSSNestedDeclarations { pub(crate) fn new_inherited( parent_stylesheet: &CSSStyleSheet, nesteddeclarationsrule: Arc>, ) -> Self { Self { cssrule: CSSRule::new_inherited(parent_stylesheet), nesteddeclarationsrule, style_decl: Default::default(), } } #[cfg_attr(crown, allow(crown::unrooted_must_root))] pub(crate) fn new( window: &Window, parent_stylesheet: &CSSStyleSheet, nesteddeclarationsrule: Arc>, can_gc: CanGc, ) -> DomRoot { reflect_dom_object( Box::new(Self::new_inherited( parent_stylesheet, nesteddeclarationsrule, )), window, can_gc, ) } } impl SpecificCSSRule for CSSNestedDeclarations { fn ty(&self) -> CssRuleType { CssRuleType::NestedDeclarations } fn get_css(&self) -> DOMString { let guard = self.cssrule.shared_lock().read(); self.nesteddeclarationsrule .read_with(&guard) .to_css_string(&guard) .into() } } impl CSSNestedDeclarationsMethods for CSSNestedDeclarations { /// fn Style(&self, can_gc: CanGc) -> DomRoot { self.style_decl.or_init(|| { let guard = self.cssrule.shared_lock().read(); CSSStyleDeclaration::new( self.global().as_window(), CSSStyleOwner::CSSRule( Dom::from_ref(self.upcast()), self.nesteddeclarationsrule.read_with(&guard).block.clone(), ), None, CSSModificationAccess::ReadWrite, can_gc, ) }) } }