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style: Add a pref for |clip-path:path()|.

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Add a preference, layout.css.clip-path-path.enabled, for |clip-path:path()|.

Differential Revision: https://phabricator.services.mozilla.com/D4965
This commit is contained in:
Boris Chiou 2018-09-05 04:50:33 +00:00 • committed by Emilio Cobos Álvarez
parent 3f08d2cc02
commit cf6215c85f
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GPG key ID: 056B727BB9C1027C
1 changed files with 12 additions and 5 deletions
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17
components/style/values/specified/basic_shape.rs
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@ -49,17 +49,24 @@ pub type ShapeRadius = generic::ShapeRadius<LengthOrPercentage>;
/// The specified value of `Polygon`
pub type Polygon = generic::Polygon<LengthOrPercentage>;
#[cfg(feature = "gecko")]
fn is_clip_path_path_enabled(context: &ParserContext) -> bool {
use gecko_bindings::structs::mozilla;
context.chrome_rules_enabled() ||
unsafe { mozilla::StaticPrefs_sVarCache_layout_css_clip_path_path_enabled }
}
#[cfg(feature = "servo")]
fn is_clip_path_path_enabled(_: &ParserContext) -> bool {
false
}
impl Parse for ClippingShape {
#[inline]
fn parse<'i, 't>(
context: &ParserContext,
input: &mut Parser<'i, 't>,
) -> Result<Self, ParseError<'i>> {
// |clip-path:path()| is a chrome-only property value support for now. `path()` is
// defined in css-shape-2, but the spec is not stable enough, and we haven't decided
// to make it public yet. However, it has some benefits for the front-end, so we
// implement it.
if context.chrome_rules_enabled() {
if is_clip_path_path_enabled(context) {
if let Ok(p) = input.try(|i| Path::parse(context, i)) {
return Ok(ShapeSource::Path(p));
}