79027e65d4
CSSOM is now starting to be useful! Based on #14190. Only the <s>last commit</s> last two commits need review. cc @xidorn . This doesn't change the style API, but adds useful methods. part of #11420 This adds: - `insertRule()` and `deleteRule()` on `CSSStyleSheet`, `CSSGroupingRule` - `.style` getters on link and style elements - Keyframes-backed `CSSRules` and `CSSKeyframesRule.cssRules` - `CSSGroupingRule.cssRules` - `prefix` and `namespaceURI` attributes of `CSSNamespaceRule` - Fixups regarding parent stylesheets r? @SimonSapin Source-Repo: https://github.com/servo/servo Source-Revision: 996756687cd741ad0d30029022638bdcceecb563
70 lines
2.7 KiB
Rust
70 lines
2.7 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 dom::bindings::codegen::Bindings::CSSGroupingRuleBinding;
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use dom::bindings::codegen::Bindings::CSSGroupingRuleBinding::CSSGroupingRuleMethods;
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use dom::bindings::codegen::Bindings::CSSRuleBinding::CSSRuleBinding::CSSRuleMethods;
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use dom::bindings::error::{ErrorResult, Fallible};
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use dom::bindings::inheritance::Castable;
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use dom::bindings::js::{JS, MutNullableHeap, Root};
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use dom::bindings::reflector::{Reflectable, reflect_dom_object};
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use dom::bindings::str::DOMString;
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use dom::cssrule::CSSRule;
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use dom::cssrulelist::{CSSRuleList, RulesSource};
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use dom::cssstylesheet::CSSStyleSheet;
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use dom::window::Window;
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use style::stylesheets::CssRules as StyleCssRules;
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#[dom_struct]
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pub struct CSSGroupingRule {
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cssrule: CSSRule,
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#[ignore_heap_size_of = "Arc"]
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rules: StyleCssRules,
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rulelist: MutNullableHeap<JS<CSSRuleList>>,
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}
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impl CSSGroupingRule {
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pub fn new_inherited(parent: Option<&CSSStyleSheet>,
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rules: StyleCssRules) -> CSSGroupingRule {
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CSSGroupingRule {
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cssrule: CSSRule::new_inherited(parent),
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rules: rules,
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rulelist: MutNullableHeap::new(None),
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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: Option<&CSSStyleSheet>, rules: StyleCssRules) -> Root<CSSGroupingRule> {
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reflect_dom_object(box CSSGroupingRule::new_inherited(parent, rules),
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window,
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CSSGroupingRuleBinding::Wrap)
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}
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fn rulelist(&self) -> Root<CSSRuleList> {
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let sheet = self.upcast::<CSSRule>().GetParentStyleSheet();
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let sheet = sheet.as_ref().map(|s| &**s);
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self.rulelist.or_init(|| CSSRuleList::new(self.global().as_window(),
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sheet,
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RulesSource::Rules(self.rules.clone())))
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}
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}
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impl CSSGroupingRuleMethods for CSSGroupingRule {
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// https://drafts.csswg.org/cssom/#dom-cssgroupingrule-cssrules
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fn CssRules(&self) -> Root<CSSRuleList> {
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// XXXManishearth check origin clean flag
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self.rulelist()
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}
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// https://drafts.csswg.org/cssom/#dom-cssgroupingrule-insertrule
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fn InsertRule(&self, rule: DOMString, index: u32) -> Fallible<u32> {
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self.rulelist().insert_rule(&rule, index, /* nested */ true)
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}
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// https://drafts.csswg.org/cssom/#dom-cssgroupingrule-deleterule
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fn DeleteRule(&self, index: u32) -> ErrorResult {
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self.rulelist().remove_rule(index)
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}
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}
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