script/dom/
csslayerstatementrule.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 js::rust::MutableHandleValue;
9use servo_arc::Arc;
10use style::shared_lock::ToCssWithGuard;
11use style::stylesheets::{CssRuleType, LayerStatementRule};
12use style_traits::ToCss;
13
14use crate::dom::bindings::codegen::Bindings::CSSLayerStatementRuleBinding::CSSLayerStatementRuleMethods;
15use crate::dom::bindings::reflector::reflect_dom_object;
16use crate::dom::bindings::root::DomRoot;
17use crate::dom::bindings::str::DOMString;
18use crate::dom::bindings::utils::to_frozen_array;
19use crate::dom::cssrule::{CSSRule, SpecificCSSRule};
20use crate::dom::cssstylesheet::CSSStyleSheet;
21use crate::dom::window::Window;
22use crate::script_runtime::{CanGc, JSContext as SafeJSContext};
23
24#[dom_struct]
25pub(crate) struct CSSLayerStatementRule {
26    cssrule: CSSRule,
27    #[ignore_malloc_size_of = "Arc"]
28    #[no_trace]
29    layerstatementrule: RefCell<Arc<LayerStatementRule>>,
30}
31
32impl CSSLayerStatementRule {
33    pub(crate) fn new_inherited(
34        parent_stylesheet: &CSSStyleSheet,
35        layerstatementrule: Arc<LayerStatementRule>,
36    ) -> CSSLayerStatementRule {
37        CSSLayerStatementRule {
38            cssrule: CSSRule::new_inherited(parent_stylesheet),
39            layerstatementrule: RefCell::new(layerstatementrule),
40        }
41    }
42
43    #[cfg_attr(crown, allow(crown::unrooted_must_root))]
44    pub(crate) fn new(
45        window: &Window,
46        parent_stylesheet: &CSSStyleSheet,
47        layerstatementrule: Arc<LayerStatementRule>,
48        can_gc: CanGc,
49    ) -> DomRoot<CSSLayerStatementRule> {
50        reflect_dom_object(
51            Box::new(CSSLayerStatementRule::new_inherited(
52                parent_stylesheet,
53                layerstatementrule,
54            )),
55            window,
56            can_gc,
57        )
58    }
59
60    pub(crate) fn update_rule(&self, layerstatementrule: Arc<LayerStatementRule>) {
61        *self.layerstatementrule.borrow_mut() = layerstatementrule;
62    }
63}
64
65impl SpecificCSSRule for CSSLayerStatementRule {
66    fn ty(&self) -> CssRuleType {
67        CssRuleType::LayerStatement
68    }
69
70    fn get_css(&self) -> DOMString {
71        let guard = self.cssrule.shared_lock().read();
72        self.layerstatementrule
73            .borrow()
74            .to_css_string(&guard)
75            .into()
76    }
77}
78
79impl CSSLayerStatementRuleMethods<crate::DomTypeHolder> for CSSLayerStatementRule {
80    /// <https://drafts.csswg.org/css-cascade-5/#dom-csslayerstatementrule-namelist>
81    fn NameList(&self, cx: SafeJSContext, can_gc: CanGc, retval: MutableHandleValue) {
82        let names: Vec<DOMString> = self
83            .layerstatementrule
84            .borrow()
85            .names
86            .iter()
87            .map(|name| DOMString::from_string(name.to_css_string()))
88            .collect();
89        to_frozen_array(names.as_slice(), cx, retval, can_gc)
90    }
91}
script/dom/csslayerstatementrule.rs

script/dom/
csslayerstatementrule.rs
