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92ec8f15f0
We parse when assigning using the namespaces of the stylesheet. It isn't clear if the spec says to do that (Firefox doesn't support the setter at all, Chrome does, Safari doesn't); the spec issue is here: https://github.com/w3c/csswg-drafts/issues/1511 Also fix ToCss implementation of AttrSelectorOperator to not pad with spaces, to conform with CSSOM. This means we have to update some unit tests that expect operators with spaces around them in attribute selectors to roundtrip. See the "attribute selector" section of "Serializing Selectors" here: https://drafts.csswg.org/cssom/#serializing-selectors CSSStyleRule.selectorText is specified here: https://drafts.csswg.org/cssom/#dom-cssstylerule-selectortext
109 lines
4.3 KiB
Rust
109 lines
4.3 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 http://mozilla.org/MPL/2.0/. */
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use cssparser::{Parser as CssParser, ParserInput as CssParserInput};
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use cssparser::ToCss;
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use dom::bindings::codegen::Bindings::CSSStyleRuleBinding::{self, CSSStyleRuleMethods};
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use dom::bindings::codegen::Bindings::WindowBinding::WindowBinding::WindowMethods;
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use dom::bindings::inheritance::Castable;
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use dom::bindings::js::{JS, MutNullableJS, Root};
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use dom::bindings::reflector::{DomObject, reflect_dom_object};
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use dom::bindings::str::DOMString;
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use dom::cssrule::{CSSRule, SpecificCSSRule};
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use dom::cssstyledeclaration::{CSSModificationAccess, CSSStyleDeclaration, CSSStyleOwner};
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use dom::cssstylesheet::CSSStyleSheet;
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use dom::window::Window;
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use dom_struct::dom_struct;
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use selectors::parser::SelectorList;
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use std::mem;
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use style::selector_parser::SelectorParser;
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use style::shared_lock::{Locked, ToCssWithGuard};
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use style::stylearc::Arc;
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use style::stylesheets::{StyleRule, Origin};
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#[dom_struct]
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pub struct CSSStyleRule {
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cssrule: CSSRule,
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#[ignore_heap_size_of = "Arc"]
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stylerule: Arc<Locked<StyleRule>>,
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style_decl: MutNullableJS<CSSStyleDeclaration>,
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}
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impl CSSStyleRule {
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fn new_inherited(parent_stylesheet: &CSSStyleSheet, stylerule: Arc<Locked<StyleRule>>)
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-> CSSStyleRule {
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CSSStyleRule {
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cssrule: CSSRule::new_inherited(parent_stylesheet),
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stylerule: stylerule,
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style_decl: Default::default(),
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}
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}
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#[allow(unrooted_must_root)]
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pub fn new(window: &Window, parent_stylesheet: &CSSStyleSheet,
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stylerule: Arc<Locked<StyleRule>>) -> Root<CSSStyleRule> {
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reflect_dom_object(box CSSStyleRule::new_inherited(parent_stylesheet, stylerule),
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window,
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CSSStyleRuleBinding::Wrap)
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}
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}
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impl SpecificCSSRule for CSSStyleRule {
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fn ty(&self) -> u16 {
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use dom::bindings::codegen::Bindings::CSSRuleBinding::CSSRuleConstants;
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CSSRuleConstants::STYLE_RULE
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}
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fn get_css(&self) -> DOMString {
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let guard = self.cssrule.shared_lock().read();
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self.stylerule.read_with(&guard).to_css_string(&guard).into()
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}
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}
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impl CSSStyleRuleMethods for CSSStyleRule {
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// https://drafts.csswg.org/cssom/#dom-cssstylerule-style
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fn Style(&self) -> Root<CSSStyleDeclaration> {
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self.style_decl.or_init(|| {
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let guard = self.cssrule.shared_lock().read();
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CSSStyleDeclaration::new(
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self.global().as_window(),
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CSSStyleOwner::CSSRule(
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JS::from_ref(self.upcast()),
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self.stylerule.read_with(&guard).block.clone()
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),
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None,
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CSSModificationAccess::ReadWrite
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)
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})
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}
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// https://drafts.csswg.org/cssom/#dom-cssstylerule-selectortext
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fn SelectorText(&self) -> DOMString {
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let guard = self.cssrule.shared_lock().read();
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let stylerule = self.stylerule.read_with(&guard);
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return DOMString::from_string(stylerule.selectors.to_css_string());
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}
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// https://drafts.csswg.org/cssom/#dom-cssstylerule-selectortext
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fn SetSelectorText(&self, value: DOMString) {
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// It's not clear from the spec if we should use the stylesheet's namespaces.
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// https://github.com/w3c/csswg-drafts/issues/1511
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let namespaces = self.cssrule.parent_stylesheet().style_stylesheet().contents.namespaces.read();
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let parser = SelectorParser {
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stylesheet_origin: Origin::Author,
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namespaces: &namespaces,
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};
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let mut css_parser = CssParserInput::new(&*value);
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let mut css_parser = CssParser::new(&mut css_parser);
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if let Ok(mut s) = SelectorList::parse(&parser, &mut css_parser) {
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// This mirrors what we do in CSSStyleOwner::mutate_associated_block.
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let mut guard = self.cssrule.shared_lock().write();
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let mut stylerule = self.stylerule.write_with(&mut guard);
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mem::swap(&mut stylerule.selectors, &mut s);
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// It seems like we will want to avoid having to invalidate all
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// stylesheets eventually!
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self.global().as_window().Document().invalidate_stylesheets();
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}
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}
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}
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