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

script/dom/css/
csskeyframerule.rs
