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Check pref when parsing :fullscreen pseudo-class

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This commit is contained in:
Xidorn Quan 2017-08-15 10:10:07 +10:00
parent 5c9ba6e631
commit d3baa4fb3c
4 changed files with 33 additions and 15 deletions
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34
components/style/gecko/selector_parser.rs
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@ -125,12 +125,11 @@ impl SelectorMethods for NonTSPseudoClass {
impl NonTSPseudoClass {
/// Returns true if this pseudo-class is enabled under the context of
/// the given flag.
fn is_enabled_in(&self, flag: NonTSPseudoClassFlag) -> bool {
/// Returns true if this pseudo-class has any of the given flags set.
fn has_any_flag(&self, flags: NonTSPseudoClassFlag) -> bool {
macro_rules! check_flag {
(_) => (false);
($flags:expr) => ($flags.contains(flag));
($flags:expr) => ($flags.intersects(flags));
}
macro_rules! pseudo_class_check_is_enabled_in {
(bare: [$(($css:expr, $name:ident, $gecko_type:tt, $state:tt, $flags:tt),)*],
@ -147,6 +146,20 @@ impl NonTSPseudoClass {
apply_non_ts_list!(pseudo_class_check_is_enabled_in)
}
/// Returns whether the pseudo-class is enabled in content sheets.
fn is_enabled_in_content(&self) -> bool {
use gecko_bindings::structs::mozilla;
match self {
// For pseudo-classes with pref, the availability in content
// depends on the pref.
&NonTSPseudoClass::Fullscreen =>
unsafe { mozilla::StylePrefs_sUnprefixedFullscreenApiEnabled },
// Otherwise, a pseudo-class is enabled in content when it
// doesn't have any enabled flag.
_ => !self.has_any_flag(PSEUDO_CLASS_ENABLED_IN_UA_SHEETS_AND_CHROME),
}
}
/// https://drafts.csswg.org/selectors-4/#useraction-pseudos
///
/// We intentionally skip the link-related ones.
@ -270,14 +283,11 @@ impl<'a> SelectorParser<'a> {
fn is_pseudo_class_enabled(&self,
pseudo_class: &NonTSPseudoClass)
-> bool {
let enabled_in_ua = pseudo_class.is_enabled_in(PSEUDO_CLASS_ENABLED_IN_UA_SHEETS);
let enabled_in_chrome = pseudo_class.is_enabled_in(PSEUDO_CLASS_ENABLED_IN_CHROME);
if !enabled_in_ua && !enabled_in_chrome {
true
} else {
(enabled_in_ua && self.in_user_agent_stylesheet()) ||
(enabled_in_chrome && self.in_chrome_stylesheet())
}
pseudo_class.is_enabled_in_content() ||
(self.in_user_agent_stylesheet() &&
pseudo_class.has_any_flag(PSEUDO_CLASS_ENABLED_IN_UA_SHEETS)) ||
(self.in_chrome_stylesheet() &&
pseudo_class.has_any_flag(PSEUDO_CLASS_ENABLED_IN_CHROME))
}
}