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Use Servo to implement GetStatesForPseudoClass function in InspectorUtils.

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This commit is contained in:
Xidorn Quan 2018-03-28 09:45:24 +11:00
parent 84513d43ba
commit bb15111dab
2 changed files with 32 additions and 16 deletions
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35
components/style/gecko/selector_parser.rs
View file

@ -133,6 +133,22 @@ impl Visit for NonTSPseudoClass {
impl NonTSPseudoClass { impl NonTSPseudoClass {
/// Parses the name and returns a non-ts-pseudo-class if succeeds.
/// None otherwise. It doesn't check whether the pseudo-class is enabled
/// in a particular state.
pub fn parse_non_functional(name: &str) -> Option<Self> {
macro_rules! pseudo_class_parse {
(bare: [$(($css:expr, $name:ident, $gecko_type:tt, $state:tt, $flags:tt),)*],
string: [$(($s_css:expr, $s_name:ident, $s_gecko_type:tt, $s_state:tt, $s_flags:tt),)*]) => {
match_ignore_ascii_case! { &name,
$($css => Some(NonTSPseudoClass::$name),)*
_ => None,
}
}
}
apply_non_ts_list!(pseudo_class_parse)
}
/// Returns true if this pseudo-class has any of the given flags set. /// Returns true if this pseudo-class has any of the given flags set.
fn has_any_flag(&self, flags: NonTSPseudoClassFlag) -> bool { fn has_any_flag(&self, flags: NonTSPseudoClassFlag) -> bool {
macro_rules! check_flag { macro_rules! check_flag {
@ -373,23 +389,12 @@ impl<'a, 'i> ::selectors::Parser<'i> for SelectorParser<'a> {
location: SourceLocation, location: SourceLocation,
name: CowRcStr<'i>, name: CowRcStr<'i>,
) -> Result<NonTSPseudoClass, ParseError<'i>> { ) -> Result<NonTSPseudoClass, ParseError<'i>> {
macro_rules! pseudo_class_parse { if let Some(pseudo_class) = NonTSPseudoClass::parse_non_functional(&name) {
(bare: [$(($css:expr, $name:ident, $gecko_type:tt, $state:tt, $flags:tt),)*], if self.is_pseudo_class_enabled(&pseudo_class) {
string: [$(($s_css:expr, $s_name:ident, $s_gecko_type:tt, $s_state:tt, $s_flags:tt),)*]) => { return Ok(pseudo_class);
match_ignore_ascii_case! { &name,
$($css => NonTSPseudoClass::$name,)*
_ => return Err(location.new_custom_error(
SelectorParseErrorKind::UnsupportedPseudoClassOrElement(name.clone())
))
}
} }
} }
let pseudo_class = apply_non_ts_list!(pseudo_class_parse); Err(location.new_custom_error(SelectorParseErrorKind::UnsupportedPseudoClassOrElement(name)))
if self.is_pseudo_class_enabled(&pseudo_class) {
Ok(pseudo_class)
} else {
Err(location.new_custom_error(SelectorParseErrorKind::UnsupportedPseudoClassOrElement(name)))
}
} }
fn parse_non_ts_functional_pseudo_class<'t>( fn parse_non_ts_functional_pseudo_class<'t>(

13
ports/geckolib/glue.rs
View file

@ -31,7 +31,7 @@ use style::font_metrics::{FontMetricsProvider, get_metrics_provider_for_product}
use style::gecko::data::{GeckoStyleSheet, PerDocumentStyleData, PerDocumentStyleDataImpl}; use style::gecko::data::{GeckoStyleSheet, PerDocumentStyleData, PerDocumentStyleDataImpl};
use style::gecko::global_style_data::{GLOBAL_STYLE_DATA, GlobalStyleData, STYLE_THREAD_POOL}; use style::gecko::global_style_data::{GLOBAL_STYLE_DATA, GlobalStyleData, STYLE_THREAD_POOL};
use style::gecko::restyle_damage::GeckoRestyleDamage; use style::gecko::restyle_damage::GeckoRestyleDamage;
use style::gecko::selector_parser::PseudoElement; use style::gecko::selector_parser::{NonTSPseudoClass, PseudoElement};
use style::gecko::traversal::RecalcStyleOnly; use style::gecko::traversal::RecalcStyleOnly;
use style::gecko::wrapper::{GeckoElement, GeckoNode}; use style::gecko::wrapper::{GeckoElement, GeckoNode};
use style::gecko_bindings::bindings; use style::gecko_bindings::bindings;
@ -5115,3 +5115,14 @@ pub extern "C" fn Servo_ParseCounterStyleDescriptor(
result, result,
).is_ok() ).is_ok()
} }
#[no_mangle]
pub unsafe extern "C" fn Servo_PseudoClass_GetStates(name: *const nsACString) -> u64 {
let name = name.as_ref().unwrap().as_str_unchecked();
match NonTSPseudoClass::parse_non_functional(name) {
None => 0,
// Ignore :any-link since it contains both visited and unvisited state.
Some(NonTSPseudoClass::AnyLink) => 0,
Some(pseudo_class) => pseudo_class.state_flag().bits(),
}
}