diff options
Diffstat (limited to 'components/style/values/generics/easing.rs')
| -rw-r--r-- | components/style/values/generics/easing.rs | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/components/style/values/generics/easing.rs b/components/style/values/generics/easing.rs index 018f51bba8f..f4f93a45479 100644 --- a/components/style/values/generics/easing.rs +++ b/components/style/values/generics/easing.rs @@ -6,6 +6,7 @@ //! https://drafts.csswg.org/css-easing/#timing-functions use values::CSSFloat; +use parser::ParserContext; /// A generic easing function. #[derive(Clone, Copy, Debug, MallocSizeOf, PartialEq, SpecifiedValueInfo, ToComputedValue, ToCss)] @@ -23,7 +24,8 @@ pub enum TimingFunction<Integer, Number> { x2: Number, y2: Number, }, - /// `step-start | step-end | steps(<integer>, [ start | end ]?)` + /// `step-start | step-end | steps(<integer>, [ <step-position> ]?)` + /// `<step-position> = jump-start | jump-end | jump-none | jump-both | start | end` #[css(comma, function)] #[value_info(other_values = "step-start,step-end")] Steps(Integer, #[css(skip_if = "is_end")] StepPosition), @@ -52,18 +54,37 @@ pub enum TimingKeyword { EaseInOut, } +#[cfg(feature = "gecko")] +fn step_position_jump_enabled(_context: &ParserContext) -> bool { + use gecko_bindings::structs; + unsafe { structs::StaticPrefs_sVarCache_layout_css_step_position_jump_enabled } +} + +#[cfg(feature = "servo")] +fn step_position_jump_enabled(_context: &ParserContext) -> bool { + false +} + #[allow(missing_docs)] #[cfg_attr(feature = "servo", derive(Deserialize, Serialize))] #[derive(Clone, Copy, Debug, Eq, MallocSizeOf, Parse, PartialEq, ToComputedValue, ToCss)] #[repr(u8)] pub enum StepPosition { + #[parse(condition = "step_position_jump_enabled")] + JumpStart, + #[parse(condition = "step_position_jump_enabled")] + JumpEnd, + #[parse(condition = "step_position_jump_enabled")] + JumpNone, + #[parse(condition = "step_position_jump_enabled")] + JumpBoth, Start, End, } #[inline] fn is_end(position: &StepPosition) -> bool { - *position == StepPosition::End + *position == StepPosition::JumpEnd || *position == StepPosition::End } impl<Integer, Number> TimingFunction<Integer, Number> { |