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style: Add infrastructure for non-eagerly-cascaded pseudo-elements

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This commit also removes StylistWrapper and uses Arc::get_mut instead.
This commit is contained in:
Emilio Cobos Álvarez 2016-04-22 16:05:41 +02:00
parent 2dacbc6fb3
commit b6402a81d0
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GPG key ID: 056B727BB9C1027C
11 changed files with 188 additions and 78 deletions
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69
components/style/selector_impl.rs
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@ -6,15 +6,40 @@ use selector_matching::{USER_OR_USER_AGENT_STYLESHEETS, QUIRKS_MODE_STYLESHEET};
use selectors::Element;
use selectors::parser::{ParserContext, SelectorImpl};
use stylesheets::Stylesheet;
use properties::{self, ServoComputedValues};
pub trait ElementExt: Element {
fn is_link(&self) -> bool;
}
pub trait SelectorImplExt : SelectorImpl + Sized {
fn each_eagerly_cascaded_pseudo_element<F>(mut fun: F)
type ComputedValues: properties::ComputedValues;
fn each_pseudo_element<F>(mut fun: F)
where F: FnMut(<Self as SelectorImpl>::PseudoElement);
fn is_eagerly_cascaded_pseudo_element(pseudo: &<Self as SelectorImpl>::PseudoElement) -> bool;
#[inline]
fn each_eagerly_cascaded_pseudo_element<F>(mut fun: F)
where F: FnMut(<Self as SelectorImpl>::PseudoElement) {
Self::each_pseudo_element(|pseudo| {
if Self::is_eagerly_cascaded_pseudo_element(&pseudo) {
fun(pseudo)
}
})
}
#[inline]
fn each_non_eagerly_cascaded_pseudo_element<F>(mut fun: F)
where F: FnMut(<Self as SelectorImpl>::PseudoElement) {
Self::each_pseudo_element(|pseudo| {
if !Self::is_eagerly_cascaded_pseudo_element(&pseudo) {
fun(pseudo)
}
})
}
fn pseudo_class_state_flag(pc: &Self::NonTSPseudoClass) -> ElementState;
fn get_user_or_user_agent_stylesheets() -> &'static [Stylesheet<Self>];
@ -112,15 +137,17 @@ impl SelectorImpl for ServoSelectorImpl {
"before" => Before,
"after" => After,
"selection" => Selection,
"-servo-details-summary" => if context.in_user_agent_stylesheet {
"-servo-details-summary" => {
if !context.in_user_agent_stylesheet {
return Err(())
}
DetailsSummary
} else {
return Err(())
},
"-servo-details-content" => if context.in_user_agent_stylesheet {
"-servo-details-content" => {
if !context.in_user_agent_stylesheet {
return Err(())
}
DetailsContent
} else {
return Err(())
},
_ => return Err(())
};
@ -129,15 +156,23 @@ impl SelectorImpl for ServoSelectorImpl {
}
}
impl<E: Element<Impl=ServoSelectorImpl>> ElementExt for E {
fn is_link(&self) -> bool {
self.match_non_ts_pseudo_class(NonTSPseudoClass::AnyLink)
}
}
impl SelectorImplExt for ServoSelectorImpl {
type ComputedValues = ServoComputedValues;
// TODO: Making details-summary not eagerly cascaded shouldn't be difficult
#[inline]
fn each_eagerly_cascaded_pseudo_element<F>(mut fun: F)
fn is_eagerly_cascaded_pseudo_element(pseudo: &PseudoElement) -> bool {
match *pseudo {
PseudoElement::Before |
PseudoElement::After |
PseudoElement::Selection |
PseudoElement::DetailsContent |
PseudoElement::DetailsSummary => true,
}
}
#[inline]
fn each_pseudo_element<F>(mut fun: F)
where F: FnMut(PseudoElement) {
fun(PseudoElement::Before);
fun(PseudoElement::After);
@ -161,3 +196,9 @@ impl SelectorImplExt for ServoSelectorImpl {
Some(&*QUIRKS_MODE_STYLESHEET)
}
}
impl<E: Element<Impl=ServoSelectorImpl>> ElementExt for E {
fn is_link(&self) -> bool {
self.match_non_ts_pseudo_class(NonTSPseudoClass::AnyLink)
}
}