Struct ShadowCascadeOrder 

pub struct ShadowCascadeOrder(/* private fields */);

A counter to track how many shadow root rules deep we are. This is used to handle:

https://drafts.csswg.org/css-scoping/#shadow-cascading

See the static functions for the meaning of different values.

Implementations

impl ShadowCascadeOrder

pub fn for_outermost_shadow_tree() -> Self

A level for the outermost shadow tree (the shadow tree we own, and the ones from the slots we’re slotted in).

pub fn for_same_tree() -> Self

A level for the element’s tree.

pub fn for_innermost_containing_tree() -> Self

A level for the innermost containing tree (the one closest to the element).

pub fn dec(&mut self)

Decrement the level, moving inwards. We should only move inwards if we’re traversing slots.

pub fn inc(&mut self)

The level, moving inwards. We should only move inwards if we’re traversing slots.

Trait Implementations

impl Clone for ShadowCascadeOrder

fn clone(&self) -> ShadowCascadeOrder

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ShadowCascadeOrder

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ShadowCascadeOrder

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for ShadowCascadeOrder

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl MallocSizeOf for ShadowCascadeOrder

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl Neg for ShadowCascadeOrder

type Output = ShadowCascadeOrder

The resulting type after applying the - operator.

fn neg(self) -> Self

Performs the unary - operation.

impl Ord for ShadowCascadeOrder

fn cmp(&self, other: &ShadowCascadeOrder) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ShadowCascadeOrder

fn eq(&self, other: &ShadowCascadeOrder) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for ShadowCascadeOrder

fn partial_cmp(&self, other: &ShadowCascadeOrder) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for ShadowCascadeOrder

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl SpecifiedValueInfo for ShadowCascadeOrder

const SUPPORTED_TYPES: u8

Supported CssTypes by the given value type.

fn collect_completion_keywords(_f: &mut dyn FnMut(&[&'static str]))

Collect value starting words for the given specified value type. This includes keyword and function names which can appear at the beginning of a value of this type.

impl ToAnimatedValue for ShadowCascadeOrder

type AnimatedValue = ShadowCascadeOrder

The type of the animated value.

fn to_animated_value(self, _: &Context<'_>) -> Self::AnimatedValue

Converts this value to an animated value.

fn from_animated_value(animated: Self::AnimatedValue) -> Self

Converts back an animated value into a computed value.

impl ToComputedValue for ShadowCascadeOrder

where i8: ToComputedValue<ComputedValue = i8>,

type ComputedValue = ShadowCascadeOrder

The computed value type we’re going to be converted to.

fn from_computed_value(from: &Self::ComputedValue) -> Self

Convert a computed value to specified value form.

fn to_computed_value(&self, context: &Context<'_>) -> Self::ComputedValue

Convert a specified value to a computed value, using itself and the data inside the Context.

impl ToResolvedValue for ShadowCascadeOrder

where i8: ToResolvedValue<ResolvedValue = i8>,

type ResolvedValue = ShadowCascadeOrder

The resolved value type we’re going to be converted to.

fn from_resolved_value(from: Self::ResolvedValue) -> Self

Convert a resolved value to resolved value form.

fn to_resolved_value(self, context: &Context<'_>) -> Self::ResolvedValue

Convert a resolved value to a resolved value.

impl ToShmem for ShadowCascadeOrder

fn to_shmem(&self, builder: &mut SharedMemoryBuilder) -> Result<Self>

Clones this value into a form suitable for writing into a SharedMemoryBuilder.

impl Copy for ShadowCascadeOrder

impl Eq for ShadowCascadeOrder

impl StructuralPartialEq for ShadowCascadeOrder