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Auto merge of #18790 - upsuper:scope, r=emilio

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Support :scope pseudo-class

This fixes [bug 1406817](https://bugzilla.mozilla.org/show_bug.cgi?id=1406817).

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This commit is contained in:
bors-servo 2017-10-09 23:04:15 -05:00 • committed by GitHub
commit bbb2a3cde9
10 changed files with 80 additions and 18 deletions
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9
components/script/dom/element.rs
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@ -87,6 +87,7 @@ use net_traits::request::CorsSettings;
use ref_filter_map::ref_filter_map;
use script_layout_interface::message::ReflowGoal;
use script_thread::ScriptThread;
use selectors::Element as SelectorsElement;
use selectors::attr::{AttrSelectorOperation, NamespaceConstraint, CaseSensitivity};
use selectors::matching::{ElementSelectorFlags, LocalMatchingContext, MatchingContext, MatchingMode};
use selectors::matching::{HAS_EDGE_CHILD_SELECTOR, HAS_SLOW_SELECTOR, HAS_SLOW_SELECTOR_LATER_SIBLINGS};
@ -2191,10 +2192,12 @@ impl ElementMethods for Element {
Err(_) => Err(Error::Syntax),
Ok(selectors) => {
let quirks_mode = document_from_node(self).quirks_mode();
let root = DomRoot::from_ref(self);
// FIXME(bholley): Consider an nth-index cache here.
let mut ctx = MatchingContext::new(MatchingMode::Normal, None, None,
quirks_mode);
Ok(matches_selector_list(&selectors, &DomRoot::from_ref(self), &mut ctx))
ctx.scope_element = Some(root.opaque());
Ok(matches_selector_list(&selectors, &root, &mut ctx))
}
}
}
@ -2209,6 +2212,7 @@ impl ElementMethods for Element {
match SelectorParser::parse_author_origin_no_namespace(&selectors) {
Err(_) => Err(Error::Syntax),
Ok(selectors) => {
let self_root = DomRoot::from_ref(self);
let root = self.upcast::<Node>();
for element in root.inclusive_ancestors() {
if let Some(element) = DomRoot::downcast::<Element>(element) {
@ -2216,6 +2220,7 @@ impl ElementMethods for Element {
// FIXME(bholley): Consider an nth-index cache here.
let mut ctx = MatchingContext::new(MatchingMode::Normal, None, None,
quirks_mode);
ctx.scope_element = Some(self_root.opaque());
if matches_selector_list(&selectors, &element, &mut ctx) {
return Ok(Some(element));
}
@ -2500,7 +2505,7 @@ impl VirtualMethods for Element {
}
}
impl<'a> ::selectors::Element for DomRoot<Element> {
impl<'a> SelectorsElement for DomRoot<Element> {
type Impl = SelectorImpl;
fn opaque(&self) -> ::selectors::OpaqueElement {