script/dom/css/
csskeyframerule.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::context::JSContext;
9use script_bindings::reflector::reflect_dom_object_with_cx;
10use servo_arc::Arc;
11use style::shared_lock::{Locked, SharedRwLockReadGuard, ToCssWithGuard};
12use style::stylesheets::CssRuleType;
13use style::stylesheets::keyframes_rule::Keyframe;
14
15use super::cssrule::{CSSRule, SpecificCSSRule};
16use super::cssstyledeclaration::{CSSModificationAccess, CSSStyleDeclaration, CSSStyleOwner};
17use super::cssstylesheet::CSSStyleSheet;
18use crate::dom::bindings::codegen::Bindings::CSSKeyframeRuleBinding::CSSKeyframeRuleMethods;
19use crate::dom::bindings::inheritance::Castable;
20use crate::dom::bindings::reflector::DomGlobal;
21use crate::dom::bindings::root::{Dom, DomRoot, MutNullableDom};
22use crate::dom::bindings::str::DOMString;
23use crate::dom::cssgroupingrule::CSSGroupingRule;
24use crate::dom::window::Window;
25
26#[dom_struct]
27pub(crate) struct CSSKeyframeRule {
28    css_rule: CSSRule,
29    #[ignore_malloc_size_of = "Stylo"]
30    #[no_trace]
31    keyframe_rule: RefCell<Arc<Locked<Keyframe>>>,
32    style_declaration: MutNullableDom<CSSStyleDeclaration>,
33}
34
35impl CSSKeyframeRule {
36    fn new_inherited(
37        parent_rule: Option<&CSSGroupingRule>,
38        parent_stylesheet: &CSSStyleSheet,
39        keyframerule: Arc<Locked<Keyframe>>,
40    ) -> CSSKeyframeRule {
41        CSSKeyframeRule {
42            css_rule: CSSRule::new_inherited(parent_rule, parent_stylesheet),
43            keyframe_rule: RefCell::new(keyframerule),
44            style_declaration: Default::default(),
45        }
46    }
47
48    pub(crate) fn new(
49        cx: &mut JSContext,
50        window: &Window,
51        parent_rule: Option<&CSSGroupingRule>,
52        parent_stylesheet: &CSSStyleSheet,
53        keyframerule: Arc<Locked<Keyframe>>,
54    ) -> DomRoot<CSSKeyframeRule> {
55        reflect_dom_object_with_cx(
56            Box::new(CSSKeyframeRule::new_inherited(
57                parent_rule,
58                parent_stylesheet,
59                keyframerule,
60            )),
61            window,
62            cx,
63        )
64    }
65
66    pub(crate) fn update_rule(
67        &self,
68        keyframerule: Arc<Locked<Keyframe>>,
69        guard: &SharedRwLockReadGuard,
70    ) {
71        if let Some(ref style_decl) = self.style_declaration.get() {
72            style_decl.update_property_declaration_block(&keyframerule.read_with(guard).block);
73        }
74        *self.keyframe_rule.borrow_mut() = keyframerule;
75    }
76}
77
78impl CSSKeyframeRuleMethods<crate::DomTypeHolder> for CSSKeyframeRule {
79    /// <https://drafts.csswg.org/css-animations/#dom-csskeyframerule-style>
80    fn Style(&self, cx: &mut JSContext) -> DomRoot<CSSStyleDeclaration> {
81        self.style_declaration.or_init(|| {
82            let guard = self.css_rule.shared_lock().read();
83            CSSStyleDeclaration::new(
84                cx,
85                self.global().as_window(),
86                CSSStyleOwner::CSSRule(
87                    Dom::from_ref(self.upcast()),
88                    RefCell::new(self.keyframe_rule.borrow().read_with(&guard).block.clone()),
89                ),
90                None,
91                CSSModificationAccess::ReadWrite,
92            )
93        })
94    }
95}
96
97impl SpecificCSSRule for CSSKeyframeRule {
98    fn ty(&self) -> CssRuleType {
99        CssRuleType::Keyframe
100    }
101
102    fn get_css(&self) -> DOMString {
103        let guard = self.css_rule.shared_lock().read();
104        self.keyframe_rule
105            .borrow()
106            .read_with(&guard)
107            .to_css_string(&guard)
108            .into()
109    }
110}
script/dom/css/csskeyframerule.rs

script/dom/css/
csskeyframerule.rs
