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style: Allow storing a DocumentState for invalidation.

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This commit is contained in:
Emilio Cobos Álvarez 2018-01-11 12:37:47 +01:00
parent 1e27f2883b
commit cb1a951477
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GPG key ID: 056B727BB9C1027C
2 changed files with 26 additions and 6 deletions
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9
components/style/gecko/selector_parser.rs
View file

@ -277,8 +277,15 @@ impl NonTSPseudoClass {
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct SelectorImpl;
/// A struct holding the members necessary to invalidate document state
/// selectors.
pub struct InvalidationMatchingData {
/// The document state that has changed, which makes it always match.
pub document_state: DocumentState,
}
impl ::selectors::SelectorImpl for SelectorImpl {
type ExtraMatchingData = ();
type ExtraMatchingData = InvalidationMatchingData;
type AttrValue = Atom;
type Identifier = Atom;
type ClassName = Atom;

23
components/style/gecko/wrapper.rs
View file

@ -2110,8 +2110,14 @@ impl<'le> ::selectors::Element for GeckoElement<'le> {
self.get_document_theme() == DocumentTheme::Doc_Theme_Dark
}
NonTSPseudoClass::MozWindowInactive => {
self.document_state()
.contains(DocumentState::NS_DOCUMENT_STATE_WINDOW_INACTIVE)
let state_bit = DocumentState::NS_DOCUMENT_STATE_WINDOW_INACTIVE;
if let Some(ref invalidation_data) = context.extra_data {
if invalidation_data.document_state.intersects(state_bit) {
return true;
}
}
self.document_state().contains(state_bit)
}
NonTSPseudoClass::MozPlaceholder => false,
NonTSPseudoClass::MozAny(ref sels) => {
@ -2126,9 +2132,16 @@ impl<'le> ::selectors::Element for GeckoElement<'le> {
self.match_element_lang(None, lang_arg)
}
NonTSPseudoClass::MozLocaleDir(ref dir) => {
let doc_is_rtl =
self.document_state()
.contains(DocumentState::NS_DOCUMENT_STATE_RTL_LOCALE);
let state_bit = DocumentState::NS_DOCUMENT_STATE_RTL_LOCALE;
if let Some(ref invalidation_data) = context.extra_data {
// NOTE(emilio): We could still return false for
// Direction::Other(..), but we don't bother.
if invalidation_data.document_state.intersects(state_bit) {
return true;
}
}
let doc_is_rtl = self.document_state().contains(state_bit);
match **dir {
Direction::Ltr => !doc_is_rtl,