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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 https://mozilla.org/MPL/2.0/. */
use dom_struct::dom_struct;
use servo_arc::Arc;
use style::shared_lock::ToCssWithGuard;
use style::stylesheets::{CssRuleType, SupportsRule};
use style_traits::ToCss;
use crate::dom::bindings::reflector::reflect_dom_object;
use crate::dom::bindings::root::DomRoot;
use crate::dom::bindings::str::DOMString;
use crate::dom::cssconditionrule::CSSConditionRule;
use crate::dom::cssrule::SpecificCSSRule;
use crate::dom::cssstylesheet::CSSStyleSheet;
use crate::dom::window::Window;
use crate::script_runtime::CanGc;
#[dom_struct]
pub(crate) struct CSSSupportsRule {
cssconditionrule: CSSConditionRule,
#[ignore_malloc_size_of = "Arc"]
#[no_trace]
supportsrule: Arc<SupportsRule>,
}
impl CSSSupportsRule {
fn new_inherited(
parent_stylesheet: &CSSStyleSheet,
supportsrule: Arc<SupportsRule>,
) -> CSSSupportsRule {
let list = supportsrule.rules.clone();
CSSSupportsRule {
cssconditionrule: CSSConditionRule::new_inherited(parent_stylesheet, list),
supportsrule,
}
}
#[cfg_attr(crown, allow(crown::unrooted_must_root))]
pub(crate) fn new(
window: &Window,
parent_stylesheet: &CSSStyleSheet,
supportsrule: Arc<SupportsRule>,
can_gc: CanGc,
) -> DomRoot<CSSSupportsRule> {
reflect_dom_object(
Box::new(CSSSupportsRule::new_inherited(
parent_stylesheet,
supportsrule,
)),
window,
can_gc,
)
}
/// <https://drafts.csswg.org/css-conditional-3/#the-csssupportsrule-interface>
pub(crate) fn get_condition_text(&self) -> DOMString {
self.supportsrule.condition.to_css_string().into()
}
}
impl SpecificCSSRule for CSSSupportsRule {
fn ty(&self) -> CssRuleType {
CssRuleType::Supports
}
fn get_css(&self) -> DOMString {
let guard = self.cssconditionrule.shared_lock().read();
self.supportsrule.to_css_string(&guard).into()
}
}
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