mirror of
https://github.com/servo/servo
synced 2026-04-27 18:07:52 +02:00
b0582911db
This continues #43045 Changelog: - Upstream:74ddab4091...6de1071549- Servo fixups:9f2f4f3f1b...6cfce6f329Stylo tracking issue: https://github.com/servo/stylo/issues/347 Summary of improvements: - Adding support for the CSS-wide `revert-rule` keyword - `::details-content` becomes element-backed, thus accepting nested pseudo-elements like `::details-content::before`. - Custom properties can now be registered using dashed idents in their syntax - Various `attr()` improvements Testing: Various WPT improvements --------- Signed-off-by: Oriol Brufau <obrufau@igalia.com>
281 lines
12 KiB
Rust
281 lines
12 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
|
||
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
||
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
|
||
|
||
use std::cell::Cell;
|
||
|
||
use dom_struct::dom_struct;
|
||
use style::shared_lock::{SharedRwLock, SharedRwLockReadGuard};
|
||
use style::stylesheets::{CssRule as StyleCssRule, CssRuleType};
|
||
|
||
use super::cssfontfacerule::CSSFontFaceRule;
|
||
use super::cssimportrule::CSSImportRule;
|
||
use super::csskeyframerule::CSSKeyframeRule;
|
||
use super::csskeyframesrule::CSSKeyframesRule;
|
||
use super::csslayerblockrule::CSSLayerBlockRule;
|
||
use super::csslayerstatementrule::CSSLayerStatementRule;
|
||
use super::cssmediarule::CSSMediaRule;
|
||
use super::cssnamespacerule::CSSNamespaceRule;
|
||
use super::cssnesteddeclarations::CSSNestedDeclarations;
|
||
use super::csspropertyrule::CSSPropertyRule;
|
||
use super::cssstylerule::CSSStyleRule;
|
||
use super::cssstylesheet::CSSStyleSheet;
|
||
use super::csssupportsrule::CSSSupportsRule;
|
||
use crate::dom::bindings::codegen::Bindings::CSSRuleBinding::CSSRuleMethods;
|
||
use crate::dom::bindings::inheritance::Castable;
|
||
use crate::dom::bindings::reflector::Reflector;
|
||
use crate::dom::bindings::root::{Dom, DomRoot};
|
||
use crate::dom::bindings::str::DOMString;
|
||
use crate::dom::window::Window;
|
||
use crate::script_runtime::CanGc;
|
||
|
||
#[dom_struct]
|
||
pub(crate) struct CSSRule {
|
||
reflector_: Reflector,
|
||
parent_stylesheet: Dom<CSSStyleSheet>,
|
||
|
||
/// Whether the parentStyleSheet attribute should return null.
|
||
/// We keep parent_stylesheet in that case because insertRule needs it
|
||
/// for the stylesheet’s base URL and namespace prefixes.
|
||
parent_stylesheet_removed: Cell<bool>,
|
||
}
|
||
|
||
impl CSSRule {
|
||
pub(crate) fn new_inherited(parent_stylesheet: &CSSStyleSheet) -> CSSRule {
|
||
CSSRule {
|
||
reflector_: Reflector::new(),
|
||
parent_stylesheet: Dom::from_ref(parent_stylesheet),
|
||
parent_stylesheet_removed: Cell::new(false),
|
||
}
|
||
}
|
||
|
||
pub(crate) fn as_specific(&self) -> &dyn SpecificCSSRule {
|
||
if let Some(rule) = self.downcast::<CSSStyleRule>() {
|
||
rule as &dyn SpecificCSSRule
|
||
} else if let Some(rule) = self.downcast::<CSSFontFaceRule>() {
|
||
rule as &dyn SpecificCSSRule
|
||
} else if let Some(rule) = self.downcast::<CSSKeyframesRule>() {
|
||
rule as &dyn SpecificCSSRule
|
||
} else if let Some(rule) = self.downcast::<CSSMediaRule>() {
|
||
rule as &dyn SpecificCSSRule
|
||
} else if let Some(rule) = self.downcast::<CSSNamespaceRule>() {
|
||
rule as &dyn SpecificCSSRule
|
||
} else if let Some(rule) = self.downcast::<CSSKeyframeRule>() {
|
||
rule as &dyn SpecificCSSRule
|
||
} else if let Some(rule) = self.downcast::<CSSImportRule>() {
|
||
rule as &dyn SpecificCSSRule
|
||
} else if let Some(rule) = self.downcast::<CSSSupportsRule>() {
|
||
rule as &dyn SpecificCSSRule
|
||
} else if let Some(rule) = self.downcast::<CSSLayerBlockRule>() {
|
||
rule as &dyn SpecificCSSRule
|
||
} else if let Some(rule) = self.downcast::<CSSLayerStatementRule>() {
|
||
rule as &dyn SpecificCSSRule
|
||
} else if let Some(rule) = self.downcast::<CSSNestedDeclarations>() {
|
||
rule as &dyn SpecificCSSRule
|
||
} else if let Some(rule) = self.downcast::<CSSPropertyRule>() {
|
||
rule as &dyn SpecificCSSRule
|
||
} else {
|
||
unreachable!()
|
||
}
|
||
}
|
||
|
||
// Given a StyleCssRule, create a new instance of a derived class of
|
||
// CSSRule based on which rule it is
|
||
pub(crate) fn new_specific(
|
||
window: &Window,
|
||
parent_stylesheet: &CSSStyleSheet,
|
||
rule: StyleCssRule,
|
||
can_gc: CanGc,
|
||
) -> DomRoot<CSSRule> {
|
||
// be sure to update the match in as_specific when this is updated
|
||
match rule {
|
||
StyleCssRule::Import(s) => {
|
||
DomRoot::upcast(CSSImportRule::new(window, parent_stylesheet, s, can_gc))
|
||
},
|
||
StyleCssRule::Style(s) => {
|
||
DomRoot::upcast(CSSStyleRule::new(window, parent_stylesheet, s, can_gc))
|
||
},
|
||
StyleCssRule::FontFace(s) => {
|
||
DomRoot::upcast(CSSFontFaceRule::new(window, parent_stylesheet, s, can_gc))
|
||
},
|
||
StyleCssRule::FontFeatureValues(_) => unimplemented!(),
|
||
StyleCssRule::CounterStyle(_) => unimplemented!(),
|
||
StyleCssRule::Keyframes(s) => {
|
||
DomRoot::upcast(CSSKeyframesRule::new(window, parent_stylesheet, s, can_gc))
|
||
},
|
||
StyleCssRule::Media(s) => {
|
||
DomRoot::upcast(CSSMediaRule::new(window, parent_stylesheet, s, can_gc))
|
||
},
|
||
StyleCssRule::Namespace(s) => {
|
||
DomRoot::upcast(CSSNamespaceRule::new(window, parent_stylesheet, s, can_gc))
|
||
},
|
||
StyleCssRule::Supports(s) => {
|
||
DomRoot::upcast(CSSSupportsRule::new(window, parent_stylesheet, s, can_gc))
|
||
},
|
||
StyleCssRule::Page(_) => unreachable!(),
|
||
StyleCssRule::Container(_) => unimplemented!(), // TODO
|
||
StyleCssRule::Document(_) => unimplemented!(), // TODO
|
||
StyleCssRule::LayerBlock(s) => {
|
||
DomRoot::upcast(CSSLayerBlockRule::new(window, parent_stylesheet, s, can_gc))
|
||
},
|
||
StyleCssRule::LayerStatement(s) => DomRoot::upcast(CSSLayerStatementRule::new(
|
||
window,
|
||
parent_stylesheet,
|
||
s,
|
||
can_gc,
|
||
)),
|
||
StyleCssRule::FontPaletteValues(_) => unimplemented!(), // TODO
|
||
StyleCssRule::Property(s) => {
|
||
DomRoot::upcast(CSSPropertyRule::new(window, parent_stylesheet, s, can_gc))
|
||
},
|
||
StyleCssRule::Margin(_) => unimplemented!(), // TODO
|
||
StyleCssRule::Scope(_) => unimplemented!(), // TODO
|
||
StyleCssRule::StartingStyle(_) => unimplemented!(), // TODO
|
||
StyleCssRule::PositionTry(_) => unimplemented!(), // TODO
|
||
StyleCssRule::CustomMedia(_) => unimplemented!(), // TODO
|
||
StyleCssRule::NestedDeclarations(s) => DomRoot::upcast(CSSNestedDeclarations::new(
|
||
window,
|
||
parent_stylesheet,
|
||
s,
|
||
can_gc,
|
||
)),
|
||
StyleCssRule::AppearanceBase(_) => unimplemented!(), // TODO
|
||
StyleCssRule::ViewTransition(_) => unimplemented!(), // TODO
|
||
}
|
||
}
|
||
|
||
/// Sets owner sheet/rule to null
|
||
pub(crate) fn detach(&self) {
|
||
self.deparent();
|
||
// should set parent rule to None when we add parent rule support
|
||
}
|
||
|
||
/// Sets owner sheet to null (and does the same for all children)
|
||
pub(crate) fn deparent(&self) {
|
||
self.parent_stylesheet_removed.set(true);
|
||
// https://github.com/w3c/csswg-drafts/issues/722
|
||
// Spec doesn't ask us to do this, but it makes sense
|
||
// and browsers implement this behavior
|
||
self.as_specific().deparent_children();
|
||
}
|
||
|
||
pub(crate) fn parent_stylesheet(&self) -> &CSSStyleSheet {
|
||
&self.parent_stylesheet
|
||
}
|
||
|
||
pub(crate) fn shared_lock(&self) -> &SharedRwLock {
|
||
self.parent_stylesheet.shared_lock()
|
||
}
|
||
|
||
pub(crate) fn update_rule(&self, style_rule: &StyleCssRule, guard: &SharedRwLockReadGuard) {
|
||
match style_rule {
|
||
StyleCssRule::Import(s) => {
|
||
if let Some(rule) = self.downcast::<CSSImportRule>() {
|
||
rule.update_rule(s.clone());
|
||
}
|
||
},
|
||
StyleCssRule::Style(s) => {
|
||
if let Some(rule) = self.downcast::<CSSStyleRule>() {
|
||
rule.update_rule(s.clone(), guard);
|
||
}
|
||
},
|
||
StyleCssRule::FontFace(s) => {
|
||
if let Some(rule) = self.downcast::<CSSFontFaceRule>() {
|
||
rule.update_rule(s.clone());
|
||
}
|
||
},
|
||
StyleCssRule::FontFeatureValues(_) => unimplemented!(),
|
||
StyleCssRule::CounterStyle(_) => unimplemented!(),
|
||
StyleCssRule::Keyframes(s) => {
|
||
if let Some(rule) = self.downcast::<CSSKeyframesRule>() {
|
||
rule.update_rule(s.clone(), guard);
|
||
}
|
||
},
|
||
StyleCssRule::Media(s) => {
|
||
if let Some(rule) = self.downcast::<CSSMediaRule>() {
|
||
rule.update_rule(s.clone(), guard);
|
||
}
|
||
},
|
||
StyleCssRule::Namespace(s) => {
|
||
if let Some(rule) = self.downcast::<CSSNamespaceRule>() {
|
||
rule.update_rule(s.clone());
|
||
}
|
||
},
|
||
StyleCssRule::Supports(s) => {
|
||
if let Some(rule) = self.downcast::<CSSSupportsRule>() {
|
||
rule.update_rule(s.clone(), guard);
|
||
}
|
||
},
|
||
StyleCssRule::Page(_) => unreachable!(),
|
||
StyleCssRule::Container(_) => unimplemented!(), // TODO
|
||
StyleCssRule::Document(_) => unimplemented!(), // TODO
|
||
StyleCssRule::LayerBlock(s) => {
|
||
if let Some(rule) = self.downcast::<CSSLayerBlockRule>() {
|
||
rule.update_rule(s.clone(), guard);
|
||
}
|
||
},
|
||
StyleCssRule::LayerStatement(s) => {
|
||
if let Some(rule) = self.downcast::<CSSLayerStatementRule>() {
|
||
rule.update_rule(s.clone());
|
||
}
|
||
},
|
||
StyleCssRule::FontPaletteValues(_) => unimplemented!(), // TODO
|
||
StyleCssRule::Property(s) => {
|
||
if let Some(rule) = self.downcast::<CSSPropertyRule>() {
|
||
rule.update_rule(s.clone());
|
||
}
|
||
},
|
||
StyleCssRule::Margin(_) => unimplemented!(), // TODO
|
||
StyleCssRule::Scope(_) => unimplemented!(), // TODO
|
||
StyleCssRule::StartingStyle(_) => unimplemented!(), // TODO
|
||
StyleCssRule::PositionTry(_) => unimplemented!(), // TODO
|
||
StyleCssRule::CustomMedia(_) => unimplemented!(), // TODO
|
||
StyleCssRule::NestedDeclarations(s) => {
|
||
if let Some(rule) = self.downcast::<CSSNestedDeclarations>() {
|
||
rule.update_rule(s.clone(), guard);
|
||
}
|
||
},
|
||
StyleCssRule::AppearanceBase(_) => unimplemented!(), // TODO
|
||
StyleCssRule::ViewTransition(_) => unimplemented!(), // TODO
|
||
}
|
||
}
|
||
}
|
||
|
||
impl CSSRuleMethods<crate::DomTypeHolder> for CSSRule {
|
||
/// <https://drafts.csswg.org/cssom/#dom-cssrule-type>
|
||
fn Type(&self) -> u16 {
|
||
let rule_type = self.as_specific().ty() as u16;
|
||
// Per https://drafts.csswg.org/cssom/#dom-cssrule-type for constants > 15
|
||
// we return 0.
|
||
if rule_type > 15 { 0 } else { rule_type }
|
||
}
|
||
|
||
/// <https://drafts.csswg.org/cssom/#dom-cssrule-parentstylesheet>
|
||
fn GetParentStyleSheet(&self) -> Option<DomRoot<CSSStyleSheet>> {
|
||
if self.parent_stylesheet_removed.get() {
|
||
None
|
||
} else {
|
||
Some(DomRoot::from_ref(&*self.parent_stylesheet))
|
||
}
|
||
}
|
||
|
||
/// <https://drafts.csswg.org/cssom/#dom-cssrule-csstext>
|
||
fn CssText(&self) -> DOMString {
|
||
self.as_specific().get_css()
|
||
}
|
||
|
||
/// <https://drafts.csswg.org/cssom/#dom-cssrule-csstext>
|
||
fn SetCssText(&self, _: DOMString) {
|
||
// do nothing
|
||
}
|
||
}
|
||
|
||
pub(crate) trait SpecificCSSRule {
|
||
fn ty(&self) -> CssRuleType;
|
||
fn get_css(&self) -> DOMString;
|
||
/// Remove parentStylesheet from all transitive children
|
||
fn deparent_children(&self) {
|
||
// most CSSRules do nothing here
|
||
}
|
||
}
|