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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use element_state::ElementState;
use selector_matching::{USER_OR_USER_AGENT_STYLESHEETS, QUIRKS_MODE_STYLESHEET};
use selectors::Element;
use selectors::parser::{ParserContext, SelectorImpl};
use stylesheets::Stylesheet;
pub trait ElementExt: Element {
fn is_link(&self) -> bool;
}
pub trait SelectorImplExt : SelectorImpl + Sized {
fn each_eagerly_cascaded_pseudo_element<F>(mut fun: F)
where F: FnMut(<Self as SelectorImpl>::PseudoElement);
fn pseudo_class_state_flag(pc: &Self::NonTSPseudoClass) -> ElementState;
fn get_user_or_user_agent_stylesheets() -> &'static [Stylesheet<Self>];
fn get_quirks_mode_stylesheet() -> Option<&'static Stylesheet<Self>>;
}
#[derive(Clone, Debug, PartialEq, Eq, HeapSizeOf, Hash)]
pub enum PseudoElement {
Before,
After,
Selection,
DetailsSummary,
DetailsContent,
}
#[derive(Clone, Debug, PartialEq, Eq, HeapSizeOf, Hash)]
pub enum NonTSPseudoClass {
AnyLink,
Link,
Visited,
Active,
Focus,
Hover,
Enabled,
Disabled,
Checked,
Indeterminate,
ServoNonZeroBorder,
}
impl NonTSPseudoClass {
pub fn state_flag(&self) -> ElementState {
use element_state::*;
use self::NonTSPseudoClass::*;
match *self {
Active => IN_ACTIVE_STATE,
Focus => IN_FOCUS_STATE,
Hover => IN_HOVER_STATE,
Enabled => IN_ENABLED_STATE,
Disabled => IN_DISABLED_STATE,
Checked => IN_CHECKED_STATE,
Indeterminate => IN_INDETERMINATE_STATE,
AnyLink |
Link |
Visited |
ServoNonZeroBorder => ElementState::empty(),
}
}
}
#[derive(Clone, Debug, PartialEq, HeapSizeOf)]
pub struct ServoSelectorImpl;
impl SelectorImpl for ServoSelectorImpl {
type PseudoElement = PseudoElement;
type NonTSPseudoClass = NonTSPseudoClass;
fn parse_non_ts_pseudo_class(context: &ParserContext,
name: &str) -> Result<NonTSPseudoClass, ()> {
use self::NonTSPseudoClass::*;
let pseudo_class = match_ignore_ascii_case! { name,
"any-link" => AnyLink,
"link" => Link,
"visited" => Visited,
"active" => Active,
"focus" => Focus,
"hover" => Hover,
"enabled" => Enabled,
"disabled" => Disabled,
"checked" => Checked,
"indeterminate" => Indeterminate,
"-servo-nonzero-border" => {
if !context.in_user_agent_stylesheet {
return Err(());
}
ServoNonZeroBorder
},
_ => return Err(())
};
Ok(pseudo_class)
}
fn parse_pseudo_element(context: &ParserContext,
name: &str) -> Result<PseudoElement, ()> {
use self::PseudoElement::*;
let pseudo_element = match_ignore_ascii_case! { name,
"before" => Before,
"after" => After,
"selection" => Selection,
"-servo-details-summary" => if context.in_user_agent_stylesheet {
DetailsSummary
} else {
return Err(())
},
"-servo-details-content" => if context.in_user_agent_stylesheet {
DetailsContent
} else {
return Err(())
},
_ => return Err(())
};
Ok(pseudo_element)
}
}
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 {
#[inline]
fn each_eagerly_cascaded_pseudo_element<F>(mut fun: F)
where F: FnMut(PseudoElement) {
fun(PseudoElement::Before);
fun(PseudoElement::After);
fun(PseudoElement::DetailsContent);
fun(PseudoElement::DetailsSummary);
fun(PseudoElement::Selection);
}
#[inline]
fn pseudo_class_state_flag(pc: &NonTSPseudoClass) -> ElementState {
pc.state_flag()
}
#[inline]
fn get_user_or_user_agent_stylesheets() -> &'static [Stylesheet<Self>] {
&*USER_OR_USER_AGENT_STYLESHEETS
}
#[inline]
fn get_quirks_mode_stylesheet() -> Option<&'static Stylesheet<Self>> {
Some(&*QUIRKS_MODE_STYLESHEET)
}
}
|
