script/dom/
cssnamespacerule.rs

1/* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
4
5use std::cell::RefCell;
6
7use dom_struct::dom_struct;
8use servo_arc::Arc;
9use style::shared_lock::ToCssWithGuard;
10use style::stylesheets::{CssRuleType, NamespaceRule};
11
12use crate::dom::bindings::codegen::Bindings::CSSNamespaceRuleBinding::CSSNamespaceRuleMethods;
13use crate::dom::bindings::reflector::reflect_dom_object;
14use crate::dom::bindings::root::DomRoot;
15use crate::dom::bindings::str::DOMString;
16use crate::dom::cssrule::{CSSRule, SpecificCSSRule};
17use crate::dom::cssstylesheet::CSSStyleSheet;
18use crate::dom::window::Window;
19use crate::script_runtime::CanGc;
20
21#[dom_struct]
22pub(crate) struct CSSNamespaceRule {
23    cssrule: CSSRule,
24    #[ignore_malloc_size_of = "Arc"]
25    #[no_trace]
26    namespacerule: RefCell<Arc<NamespaceRule>>,
27}
28
29impl CSSNamespaceRule {
30    fn new_inherited(
31        parent_stylesheet: &CSSStyleSheet,
32        namespacerule: Arc<NamespaceRule>,
33    ) -> CSSNamespaceRule {
34        CSSNamespaceRule {
35            cssrule: CSSRule::new_inherited(parent_stylesheet),
36            namespacerule: RefCell::new(namespacerule),
37        }
38    }
39
40    #[cfg_attr(crown, allow(crown::unrooted_must_root))]
41    pub(crate) fn new(
42        window: &Window,
43        parent_stylesheet: &CSSStyleSheet,
44        namespacerule: Arc<NamespaceRule>,
45        can_gc: CanGc,
46    ) -> DomRoot<CSSNamespaceRule> {
47        reflect_dom_object(
48            Box::new(CSSNamespaceRule::new_inherited(
49                parent_stylesheet,
50                namespacerule,
51            )),
52            window,
53            can_gc,
54        )
55    }
56
57    pub(crate) fn update_rule(&self, namespacerule: Arc<NamespaceRule>) {
58        *self.namespacerule.borrow_mut() = namespacerule;
59    }
60}
61
62impl CSSNamespaceRuleMethods<crate::DomTypeHolder> for CSSNamespaceRule {
63    // https://drafts.csswg.org/cssom/#dom-cssnamespacerule-prefix
64    fn Prefix(&self) -> DOMString {
65        self.namespacerule
66            .borrow()
67            .prefix
68            .as_ref()
69            .map(|s| s.to_string().into())
70            .unwrap_or_default()
71    }
72
73    // https://drafts.csswg.org/cssom/#dom-cssnamespacerule-namespaceuri
74    fn NamespaceURI(&self) -> DOMString {
75        (**self.namespacerule.borrow().url).into()
76    }
77}
78
79impl SpecificCSSRule for CSSNamespaceRule {
80    fn ty(&self) -> CssRuleType {
81        CssRuleType::Namespace
82    }
83
84    fn get_css(&self) -> DOMString {
85        let guard = self.cssrule.shared_lock().read();
86        self.namespacerule.borrow().to_css_string(&guard).into()
87    }
88}
script/dom/cssnamespacerule.rs

script/dom/
cssnamespacerule.rs
