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f9e154af55
`CSSRule::Type()` returns an u16 for CSSOM. `InsertRule()` was incorrectly using this to create a `CssRuleTypes`. Instead of `CssRuleTypes::from_bits(rule_type)`, it should be something like `CssRuleTypes::from_bits(1 << rule_type)`. However, that would only work when `Type()` provides an actual value, which per https://drafts.csswg.org/cssom/#dom-cssrule-type only happens for old rule types. New rule types just return 0. Therefore, this patch changes the signature of `SpecificCSSRule::ty()` to return the actual `CssRuleType`, and then `CSSRule::Type()` can zero it out when necessary. The fix is only relevant for CSS Nesting, which is currently disabled on Servo, so no test is necessary. <!-- Please describe your changes on the following line: --> --- <!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: --> - [X] `./mach build -d` does not report any errors - [X] `./mach test-tidy` does not report any errors - [X] These changes do not require tests because the fix is only relevant for CSS Nesting, which is currently disabled <!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.--> <!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
69 lines
2.1 KiB
Rust
69 lines
2.1 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 https://mozilla.org/MPL/2.0/. */
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use dom_struct::dom_struct;
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use servo_arc::Arc;
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use style::shared_lock::ToCssWithGuard;
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use style::stylesheets::{CssRuleType, SupportsRule};
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use style_traits::ToCss;
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use crate::dom::bindings::reflector::reflect_dom_object;
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use crate::dom::bindings::root::DomRoot;
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use crate::dom::bindings::str::DOMString;
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use crate::dom::cssconditionrule::CSSConditionRule;
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use crate::dom::cssrule::SpecificCSSRule;
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use crate::dom::cssstylesheet::CSSStyleSheet;
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use crate::dom::window::Window;
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#[dom_struct]
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pub struct CSSSupportsRule {
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cssconditionrule: CSSConditionRule,
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#[ignore_malloc_size_of = "Arc"]
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#[no_trace]
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supportsrule: Arc<SupportsRule>,
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}
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impl CSSSupportsRule {
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fn new_inherited(
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parent_stylesheet: &CSSStyleSheet,
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supportsrule: Arc<SupportsRule>,
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) -> CSSSupportsRule {
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let list = supportsrule.rules.clone();
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CSSSupportsRule {
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cssconditionrule: CSSConditionRule::new_inherited(parent_stylesheet, list),
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supportsrule,
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}
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}
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#[allow(crown::unrooted_must_root)]
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pub fn new(
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window: &Window,
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parent_stylesheet: &CSSStyleSheet,
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supportsrule: Arc<SupportsRule>,
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) -> DomRoot<CSSSupportsRule> {
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reflect_dom_object(
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Box::new(CSSSupportsRule::new_inherited(
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parent_stylesheet,
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supportsrule,
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)),
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window,
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)
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}
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/// <https://drafts.csswg.org/css-conditional-3/#the-csssupportsrule-interface>
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pub fn get_condition_text(&self) -> DOMString {
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self.supportsrule.condition.to_css_string().into()
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}
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}
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impl SpecificCSSRule for CSSSupportsRule {
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fn ty(&self) -> CssRuleType {
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CssRuleType::Supports
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}
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fn get_css(&self) -> DOMString {
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let guard = self.cssconditionrule.shared_lock().read();
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self.supportsrule.to_css_string(&guard).into()
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}
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}
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