diff options
Diffstat (limited to 'components/layout_2020/style_ext.rs')
| -rw-r--r-- | components/layout_2020/style_ext.rs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/components/layout_2020/style_ext.rs b/components/layout_2020/style_ext.rs index 857a00d22c4..dc3930d7058 100644 --- a/components/layout_2020/style_ext.rs +++ b/components/layout_2020/style_ext.rs @@ -8,6 +8,7 @@ use crate::ContainingBlock; use style::computed_values::mix_blend_mode::T as ComputedMixBlendMode; use style::computed_values::position::T as ComputedPosition; use style::computed_values::transform_style::T as ComputedTransformStyle; +use style::properties::longhands::backface_visibility::computed_value::T as BackfaceVisiblity; use style::properties::longhands::box_sizing::computed_value::T as BoxSizing; use style::properties::ComputedValues; use style::values::computed::image::Image as ComputedImageLayer; @@ -17,6 +18,7 @@ use style::values::generics::box_::Perspective; use style::values::generics::length::MaxSize; use style::values::specified::box_ as stylo; use style::Zero; +use webrender_api as wr; #[derive(Clone, Copy, Eq, PartialEq)] pub(crate) enum Display { @@ -90,6 +92,7 @@ pub(crate) trait ComputedValuesExt { fn establishes_containing_block(&self) -> bool; fn establishes_containing_block_for_all_descendants(&self) -> bool; fn background_is_transparent(&self) -> bool; + fn get_webrender_primitive_flags(&self) -> wr::PrimitiveFlags; } impl ComputedValuesExt for ComputedValues { @@ -375,6 +378,15 @@ impl ComputedValuesExt for ComputedValues { .iter() .all(|layer| matches!(layer, ComputedImageLayer::None)) } + + /// Generate appropriate WebRender `PrimitiveFlags` that should be used + /// for display items generated by the `Fragment` which owns this style. + fn get_webrender_primitive_flags(&self) -> wr::PrimitiveFlags { + match self.get_box().backface_visibility { + BackfaceVisiblity::Visible => wr::PrimitiveFlags::default(), + BackfaceVisiblity::Hidden => wr::PrimitiveFlags::empty(), + } + } } impl From<stylo::Display> for Display { |