forked from mirrors/gecko-dev
3b06404d3b
Source-Repo: https://github.com/servo/servo Source-Revision: 87f7b29d65d8a0ad137e38412aef50734b24ea6c
69 lines
2.4 KiB
Rust
69 lines
2.4 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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use dom::bindings::codegen::Bindings::CSSMediaRuleBinding;
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use dom::bindings::codegen::Bindings::CSSMediaRuleBinding::CSSMediaRuleMethods;
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use dom::bindings::js::{MutNullableJS, Root};
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use dom::bindings::reflector::{DomObject, reflect_dom_object};
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use dom::bindings::str::DOMString;
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use dom::cssgroupingrule::CSSGroupingRule;
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use dom::cssrule::SpecificCSSRule;
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use dom::cssstylesheet::CSSStyleSheet;
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use dom::medialist::MediaList;
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use dom::window::Window;
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use parking_lot::RwLock;
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use std::sync::Arc;
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use style::stylesheets::MediaRule;
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use style_traits::ToCss;
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#[dom_struct]
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pub struct CSSMediaRule {
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cssrule: CSSGroupingRule,
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#[ignore_heap_size_of = "Arc"]
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mediarule: Arc<RwLock<MediaRule>>,
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medialist: MutNullableJS<MediaList>,
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}
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impl CSSMediaRule {
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fn new_inherited(parent_stylesheet: &CSSStyleSheet, mediarule: Arc<RwLock<MediaRule>>)
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-> CSSMediaRule {
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let list = mediarule.read().rules.clone();
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CSSMediaRule {
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cssrule: CSSGroupingRule::new_inherited(parent_stylesheet, list),
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mediarule: mediarule,
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medialist: MutNullableJS::new(None),
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}
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}
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#[allow(unrooted_must_root)]
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pub fn new(window: &Window, parent_stylesheet: &CSSStyleSheet,
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mediarule: Arc<RwLock<MediaRule>>) -> Root<CSSMediaRule> {
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reflect_dom_object(box CSSMediaRule::new_inherited(parent_stylesheet, mediarule),
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window,
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CSSMediaRuleBinding::Wrap)
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}
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fn medialist(&self) -> Root<MediaList> {
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self.medialist.or_init(|| MediaList::new(self.global().as_window(),
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self.mediarule.read().media_queries.clone()))
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}
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}
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impl SpecificCSSRule for CSSMediaRule {
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fn ty(&self) -> u16 {
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use dom::bindings::codegen::Bindings::CSSRuleBinding::CSSRuleConstants;
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CSSRuleConstants::MEDIA_RULE
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}
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fn get_css(&self) -> DOMString {
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self.mediarule.read().to_css_string().into()
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}
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}
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impl CSSMediaRuleMethods for CSSMediaRule {
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// https://drafts.csswg.org/cssom/#dom-cssgroupingrule-media
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fn Media(&self) -> Root<MediaList> {
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self.medialist()
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}
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}
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