Trait ComputedValuesExt 

pub(crate) trait ComputedValuesExt {
    // Required methods
    fn physical_box_offsets(&self) -> PhysicalSides<LengthPercentageOrAuto<'_>>;
    fn box_offsets(
        &self,
        writing_mode: WritingMode,
    ) -> LogicalSides<LengthPercentageOrAuto<'_>>;
    fn box_size(
        &self,
        containing_block_writing_mode: WritingMode,
    ) -> LogicalVec2<Size<LengthPercentage>>;
    fn min_box_size(
        &self,
        containing_block_writing_mode: WritingMode,
    ) -> LogicalVec2<Size<LengthPercentage>>;
    fn max_box_size(
        &self,
        containing_block_writing_mode: WritingMode,
    ) -> LogicalVec2<Size<LengthPercentage>>;
    fn content_box_size_for_box_size(
        &self,
        box_size: LogicalVec2<Size<Au>>,
        pbm: &PaddingBorderMargin,
    ) -> LogicalVec2<Size<Au>>;
    fn content_min_box_size_for_min_size(
        &self,
        box_size: LogicalVec2<Size<Au>>,
        pbm: &PaddingBorderMargin,
    ) -> LogicalVec2<Size<Au>>;
    fn content_max_box_size_for_max_size(
        &self,
        box_size: LogicalVec2<Size<Au>>,
        pbm: &PaddingBorderMargin,
    ) -> LogicalVec2<Size<Au>>;
    fn border_style_color(
        &self,
        containing_block_writing_mode: WritingMode,
    ) -> LogicalSides<BorderStyleColor>;
    fn physical_margin(&self) -> PhysicalSides<LengthPercentageOrAuto<'_>>;
    fn margin(
        &self,
        containing_block_writing_mode: WritingMode,
    ) -> LogicalSides<LengthPercentageOrAuto<'_>>;
    fn is_transformable(&self, fragment_flags: FragmentFlags) -> bool;
    fn has_transform_or_perspective_style(&self) -> bool;
    fn has_effective_transform_or_perspective(
        &self,
        fragment_flags: FragmentFlags,
    ) -> bool;
    fn z_index_applies(&self, fragment_flags: FragmentFlags) -> bool;
    fn effective_z_index(&self, fragment_flags: FragmentFlags) -> i32;
    fn effective_overflow(&self, fragment_flags: FragmentFlags) -> AxesOverflow;
    fn used_transform_style(
        &self,
        fragment_flags: FragmentFlags,
    ) -> ComputedTransformStyle;
    fn establishes_block_formatting_context(
        &self,
        fragment_flags: FragmentFlags,
    ) -> bool;
    fn establishes_stacking_context(
        &self,
        fragment_flags: FragmentFlags,
    ) -> bool;
    fn establishes_scroll_container(
        &self,
        fragment_flags: FragmentFlags,
    ) -> bool;
    fn establishes_or_extends_3d_rendering_context(
        &self,
        fragment_flags: FragmentFlags,
    ) -> bool;
    fn establishes_containing_block_for_absolute_descendants(
        &self,
        fragment_flags: FragmentFlags,
    ) -> bool;
    fn establishes_containing_block_for_all_descendants(
        &self,
        fragment_flags: FragmentFlags,
    ) -> bool;
    fn preferred_aspect_ratio(
        &self,
        natural_aspect_ratio: Option<CSSFloat>,
        padding_border_sums: &LogicalVec2<Au>,
    ) -> Option<AspectRatio>;
    fn background_is_transparent(&self) -> bool;
    fn webrender_primitive_flags(&self) -> PrimitiveFlags;
    fn bidi_control_chars(&self) -> (&'static str, &'static str);
    fn resolve_align_self(
        &self,
        resolved_auto_value: ItemPlacement,
        resolved_normal_value: AlignFlags,
    ) -> SelfAlignment;
    fn depends_on_block_constraints_due_to_relative_positioning(
        &self,
        writing_mode: WritingMode,
    ) -> bool;
    fn is_inline_box(&self, fragment_flags: FragmentFlags) -> bool;
    fn is_atomic_inline_level(&self, fragment_flags: FragmentFlags) -> bool;
    fn overflow_direction(&self) -> OverflowDirection;
    fn to_bidi_level(&self) -> Level;
    fn white_space_may_hang_conditionally(&self) -> bool;
}

Required Methods

fn physical_box_offsets(&self) -> PhysicalSides<LengthPercentageOrAuto<'_>>

fn box_offsets( &self, writing_mode: WritingMode, ) -> LogicalSides<LengthPercentageOrAuto<'_>>

fn box_size( &self, containing_block_writing_mode: WritingMode, ) -> LogicalVec2<Size<LengthPercentage>>

fn min_box_size( &self, containing_block_writing_mode: WritingMode, ) -> LogicalVec2<Size<LengthPercentage>>

fn max_box_size( &self, containing_block_writing_mode: WritingMode, ) -> LogicalVec2<Size<LengthPercentage>>

fn content_box_size_for_box_size( &self, box_size: LogicalVec2<Size<Au>>, pbm: &PaddingBorderMargin, ) -> LogicalVec2<Size<Au>>

fn content_min_box_size_for_min_size( &self, box_size: LogicalVec2<Size<Au>>, pbm: &PaddingBorderMargin, ) -> LogicalVec2<Size<Au>>

fn content_max_box_size_for_max_size( &self, box_size: LogicalVec2<Size<Au>>, pbm: &PaddingBorderMargin, ) -> LogicalVec2<Size<Au>>

fn border_style_color( &self, containing_block_writing_mode: WritingMode, ) -> LogicalSides<BorderStyleColor>

fn physical_margin(&self) -> PhysicalSides<LengthPercentageOrAuto<'_>>

fn margin( &self, containing_block_writing_mode: WritingMode, ) -> LogicalSides<LengthPercentageOrAuto<'_>>

fn is_transformable(&self, fragment_flags: FragmentFlags) -> bool

fn has_transform_or_perspective_style(&self) -> bool

fn has_effective_transform_or_perspective( &self, fragment_flags: FragmentFlags, ) -> bool

fn z_index_applies(&self, fragment_flags: FragmentFlags) -> bool

fn effective_z_index(&self, fragment_flags: FragmentFlags) -> i32

fn effective_overflow(&self, fragment_flags: FragmentFlags) -> AxesOverflow

fn used_transform_style( &self, fragment_flags: FragmentFlags, ) -> ComputedTransformStyle

fn establishes_block_formatting_context( &self, fragment_flags: FragmentFlags, ) -> bool

fn establishes_stacking_context(&self, fragment_flags: FragmentFlags) -> bool

fn establishes_scroll_container(&self, fragment_flags: FragmentFlags) -> bool

fn establishes_or_extends_3d_rendering_context( &self, fragment_flags: FragmentFlags, ) -> bool

fn establishes_containing_block_for_absolute_descendants( &self, fragment_flags: FragmentFlags, ) -> bool

fn establishes_containing_block_for_all_descendants( &self, fragment_flags: FragmentFlags, ) -> bool

fn preferred_aspect_ratio( &self, natural_aspect_ratio: Option<CSSFloat>, padding_border_sums: &LogicalVec2<Au>, ) -> Option<AspectRatio>

fn background_is_transparent(&self) -> bool

fn webrender_primitive_flags(&self) -> PrimitiveFlags

fn bidi_control_chars(&self) -> (&'static str, &'static str)

fn resolve_align_self( &self, resolved_auto_value: ItemPlacement, resolved_normal_value: AlignFlags, ) -> SelfAlignment

fn depends_on_block_constraints_due_to_relative_positioning( &self, writing_mode: WritingMode, ) -> bool

fn is_inline_box(&self, fragment_flags: FragmentFlags) -> bool

fn is_atomic_inline_level(&self, fragment_flags: FragmentFlags) -> bool

fn overflow_direction(&self) -> OverflowDirection

fn to_bidi_level(&self) -> Level

fn white_space_may_hang_conditionally(&self) -> bool

Whether or not this style causes conditional hanging in inline layout i.e. if it is white-space-collapse: preserve and text-wrap-mode: wrap.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl ComputedValuesExt for ComputedValues

fn is_transformable(&self, fragment_flags: FragmentFlags) -> bool

Returns true if this is a transformable element.

fn has_transform_or_perspective_style(&self) -> bool

Returns true if this style has a transform or perspective property set.

fn has_effective_transform_or_perspective( &self, fragment_flags: FragmentFlags, ) -> bool

Returns true if this style has a transform or perspective property set, and it applies to this element.

fn z_index_applies(&self, fragment_flags: FragmentFlags) -> bool

Whether the z-index property applies to this fragment.

fn effective_z_index(&self, fragment_flags: FragmentFlags) -> i32

Get the effective z-index of this fragment. Z-indices only apply to positioned elements per CSS 2 9.9.1 (http://www.w3.org/TR/CSS2/visuren.html#z-index), so this value may differ from the value specified in the style.

fn effective_overflow(&self, fragment_flags: FragmentFlags) -> AxesOverflow

Get the effective overflow of this box. The property only applies to block containers, flex containers, and grid containers. And some box types only accept a few values. https://www.w3.org/TR/css-overflow-3/#overflow-control

fn used_transform_style( &self, fragment_flags: FragmentFlags, ) -> ComputedTransformStyle

Get the used transform-style value according to the the rules in https://drafts.csswg.org/css-transforms/#grouping-property-values.

fn establishes_block_formatting_context( &self, fragment_flags: FragmentFlags, ) -> bool

Return true if this style is a normal block and establishes a new block formatting context.

NOTE: This should be kept in sync with the checks in impl TElement::compute_layout_damage for ServoLayoutElement in components/script/layout_dom/element.rs.

fn establishes_scroll_container(&self, fragment_flags: FragmentFlags) -> bool

Whether or not the overflow value of this style establishes a scroll container.

fn establishes_or_extends_3d_rendering_context( &self, fragment_flags: FragmentFlags, ) -> bool

Returns true if this fragment establishes or extends a 3D rendering context.

fn establishes_stacking_context(&self, fragment_flags: FragmentFlags) -> bool

Returns true if this fragment establishes a new stacking context and false otherwise.

fn establishes_containing_block_for_absolute_descendants( &self, fragment_flags: FragmentFlags, ) -> bool

Returns true if this style establishes a containing block for absolute descendants (position: absolute). If this style happens to establish a containing block for “all descendants” (ie including position: fixed descendants) this method will return true, but a true return value does not imply that the style establishes a containing block for all descendants. Use establishes_containing_block_for_all_descendants() instead.

fn establishes_containing_block_for_all_descendants( &self, fragment_flags: FragmentFlags, ) -> bool

Returns true if this style establishes a containing block for all descendants, including fixed descendants (position: fixed). Note that this also implies that it establishes a containing block for absolute descendants (position: absolute).

fn preferred_aspect_ratio( &self, natural_aspect_ratio: Option<CSSFloat>, padding_border_sums: &LogicalVec2<Au>, ) -> Option<AspectRatio>

Resolve the preferred aspect ratio according to the given natural aspect ratio and the aspect-ratio property. See https://drafts.csswg.org/css-sizing-4/#aspect-ratio.

fn background_is_transparent(&self) -> bool

Whether or not this style specifies a non-transparent background.

fn webrender_primitive_flags(&self) -> PrimitiveFlags

Generate appropriate WebRender PrimitiveFlags that should be used for display items generated by the Fragment which owns this style.

fn bidi_control_chars(&self) -> (&'static str, &'static str)

If the ‘unicode-bidi’ property has a value other than ‘normal’, return the bidi control codes to inject before and after the text content of the element. See the table in http://dev.w3.org/csswg/css-writing-modes/#unicode-bidi.

fn to_bidi_level(&self) -> Level

The default bidirectional embedding level for the writing mode of this style.

Returns bidi level 0 if the mode is LTR, or 1 otherwise.

fn physical_box_offsets(&self) -> PhysicalSides<LengthPercentageOrAuto<'_>>

fn box_offsets( &self, writing_mode: WritingMode, ) -> LogicalSides<LengthPercentageOrAuto<'_>>

fn box_size( &self, containing_block_writing_mode: WritingMode, ) -> LogicalVec2<Size<LengthPercentage>>

fn min_box_size( &self, containing_block_writing_mode: WritingMode, ) -> LogicalVec2<Size<LengthPercentage>>

fn max_box_size( &self, containing_block_writing_mode: WritingMode, ) -> LogicalVec2<Size<LengthPercentage>>

fn content_box_size_for_box_size( &self, box_size: LogicalVec2<Size<Au>>, pbm: &PaddingBorderMargin, ) -> LogicalVec2<Size<Au>>

fn content_min_box_size_for_min_size( &self, min_box_size: LogicalVec2<Size<Au>>, pbm: &PaddingBorderMargin, ) -> LogicalVec2<Size<Au>>

fn content_max_box_size_for_max_size( &self, max_box_size: LogicalVec2<Size<Au>>, pbm: &PaddingBorderMargin, ) -> LogicalVec2<Size<Au>>

fn border_style_color( &self, containing_block_writing_mode: WritingMode, ) -> LogicalSides<BorderStyleColor>

fn physical_margin(&self) -> PhysicalSides<LengthPercentageOrAuto<'_>>

fn margin( &self, containing_block_writing_mode: WritingMode, ) -> LogicalSides<LengthPercentageOrAuto<'_>>

fn is_inline_box(&self, fragment_flags: FragmentFlags) -> bool

fn is_atomic_inline_level(&self, fragment_flags: FragmentFlags) -> bool

fn resolve_align_self( &self, resolved_auto_value: ItemPlacement, resolved_normal_value: AlignFlags, ) -> SelfAlignment

fn depends_on_block_constraints_due_to_relative_positioning( &self, writing_mode: WritingMode, ) -> bool

fn overflow_direction(&self) -> OverflowDirection

fn white_space_may_hang_conditionally(&self) -> bool

Implementors