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/* 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 http://mozilla.org/MPL/2.0/. */
use dom::bindings::codegen::Bindings::CSSGroupingRuleBinding;
use dom::bindings::codegen::Bindings::CSSGroupingRuleBinding::CSSGroupingRuleMethods;
use dom::bindings::error::{ErrorResult, Fallible};
use dom::bindings::inheritance::Castable;
use dom::bindings::js::{JS, MutNullableHeap, Root};
use dom::bindings::reflector::{Reflectable, reflect_dom_object};
use dom::bindings::str::DOMString;
use dom::cssrule::CSSRule;
use dom::cssrulelist::{CSSRuleList, RulesSource};
use dom::cssstylesheet::CSSStyleSheet;
use dom::window::Window;
use parking_lot::RwLock;
use std::sync::Arc;
use style::stylesheets::CssRules as StyleCssRules;
#[dom_struct]
pub struct CSSGroupingRule {
cssrule: CSSRule,
#[ignore_heap_size_of = "Arc"]
rules: Arc<RwLock<StyleCssRules>>,
rulelist: MutNullableHeap<JS<CSSRuleList>>,
}
impl CSSGroupingRule {
pub fn new_inherited(parent_stylesheet: &CSSStyleSheet,
rules: Arc<RwLock<StyleCssRules>>) -> CSSGroupingRule {
CSSGroupingRule {
cssrule: CSSRule::new_inherited(parent_stylesheet),
rules: rules,
rulelist: MutNullableHeap::new(None),
}
}
#[allow(unrooted_must_root)]
pub fn new(window: &Window, parent_stylesheet: &CSSStyleSheet,
rules: Arc<RwLock<StyleCssRules>>) -> Root<CSSGroupingRule> {
reflect_dom_object(box CSSGroupingRule::new_inherited(parent_stylesheet, rules),
window,
CSSGroupingRuleBinding::Wrap)
}
fn rulelist(&self) -> Root<CSSRuleList> {
let parent_stylesheet = self.upcast::<CSSRule>().parent_stylesheet();
self.rulelist.or_init(|| CSSRuleList::new(self.global().as_window(),
parent_stylesheet,
RulesSource::Rules(self.rules.clone())))
}
}
impl CSSGroupingRuleMethods for CSSGroupingRule {
// https://drafts.csswg.org/cssom/#dom-cssgroupingrule-cssrules
fn CssRules(&self) -> Root<CSSRuleList> {
// XXXManishearth check origin clean flag
self.rulelist()
}
// https://drafts.csswg.org/cssom/#dom-cssgroupingrule-insertrule
fn InsertRule(&self, rule: DOMString, index: u32) -> Fallible<u32> {
self.rulelist().insert_rule(&rule, index, /* nested */ true)
}
// https://drafts.csswg.org/cssom/#dom-cssgroupingrule-deleterule
fn DeleteRule(&self, index: u32) -> ErrorResult {
self.rulelist().remove_rule(index)
}
}
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