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style: Check for allowed colors recursively in forced-colors mode

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Differential Revision: https://phabricator.services.mozilla.com/D149733
This commit is contained in:
Emilio Cobos Álvarez 2022-06-20 14:07:12 +00:00 • committed by Martin Robinson
parent f0b7f3aca2
commit 34373c2ac8
2 changed files with 20 additions and 22 deletions
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21
components/style/values/specified/color.rs
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@ -515,16 +515,17 @@ fn parse_hash_color(value: &[u8]) -> Result<RGBA, ()> {
}
impl Color {
/// Returns whether this color is a system color.
#[cfg(feature = "gecko")]
pub fn is_system(&self) -> bool {
matches!(self, Color::System(..))
}
/// Returns whether this color is a system color.
#[cfg(feature = "servo")]
pub fn is_system(&self) -> bool {
false
/// Returns whether this color is allowed in forced-colors mode.
pub fn honored_in_forced_colors_mode(&self, allow_transparent: bool) -> bool {
match *self {
Color::InheritFromBodyQuirk | Color::CurrentColor => false,
Color::System(..) => true,
Color::Numeric { ref parsed, .. } => allow_transparent && parsed.alpha == 0,
Color::ColorMix(ref mix) => {
mix.left.honored_in_forced_colors_mode(allow_transparent) &&
mix.right.honored_in_forced_colors_mode(allow_transparent)
},
}
}
/// Returns currentcolor value.