Type Alias NonNegativeLengthOrAuto

pub type NonNegativeLengthOrAuto = LengthPercentageOrAuto<NonNegativeLength>;

Either a non-negative <length> or the auto keyword.

Aliased Type

enum NonNegativeLengthOrAuto {
    LengthPercentage(NonNegative<Length>),
    Auto,
}

Variants

LengthPercentage(NonNegative<Length>)

Auto

Implementations

impl<LengthPercentage> LengthPercentageOrAuto<LengthPercentage>

pub fn auto() -> Self

auto value.

pub fn is_auto(&self) -> bool

Whether this is the auto value.

pub fn parse_with<'i, 't>( context: &ParserContext<'_>, input: &mut Parser<'i, 't>, parser: impl FnOnce(&ParserContext<'_>, &mut Parser<'i, 't>) -> Result<LengthPercentage, ParseError<'i>>, ) -> Result<Self, ParseError<'i>>

A helper function to parse this with quirks or not and so forth.

impl<LengthPercentage> LengthPercentageOrAuto<LengthPercentage>

where LengthPercentage: Clone,

pub fn auto_is(&self, f: impl FnOnce() -> LengthPercentage) -> LengthPercentage

Resolves auto values by calling f.

pub fn non_auto(&self) -> Option<LengthPercentage>

Returns the non-auto value, if any.

pub fn map<T>( &self, f: impl FnOnce(LengthPercentage) -> T, ) -> LengthPercentageOrAuto<T>

Maps the length of this value.

Trait Implementations

impl<LengthPercent> Animate for GenericLengthPercentageOrAuto<LengthPercent>

where LengthPercent: Animate,

fn animate(&self, other: &Self, procedure: Procedure) -> Result<Self, ()>

Animate a value towards another one, given an animation procedure.

impl<LengthPercent: Clone> Clone for GenericLengthPercentageOrAuto<LengthPercent>

fn clone(&self) -> GenericLengthPercentageOrAuto<LengthPercent>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<LengthPercent> ComputeSquaredDistance for GenericLengthPercentageOrAuto<LengthPercent>

where LengthPercent: ComputeSquaredDistance,

fn compute_squared_distance(&self, other: &Self) -> Result<SquaredDistance, ()>

Computes the squared distance between two animatable values.

impl<LengthPercent: Debug> Debug for GenericLengthPercentageOrAuto<LengthPercent>

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

Formats the value using the given formatter.

impl<'de, LengthPercent> Deserialize<'de> for GenericLengthPercentageOrAuto<LengthPercent>

where LengthPercent: Deserialize<'de>,

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<LengthPercent> MallocSizeOf for GenericLengthPercentageOrAuto<LengthPercent>

where LengthPercent: MallocSizeOf,

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<LengthPercentage: Parse> Parse for LengthPercentageOrAuto<LengthPercentage>

fn parse<'i, 't>( context: &ParserContext<'_>, input: &mut Parser<'i, 't>, ) -> Result<Self, ParseError<'i>>

Parse a value of this type.

impl<LengthPercent: PartialEq> PartialEq for GenericLengthPercentageOrAuto<LengthPercent>

fn eq(&self, other: &GenericLengthPercentageOrAuto<LengthPercent>) -> 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<LengthPercent> Serialize for GenericLengthPercentageOrAuto<LengthPercent>

where LengthPercent: Serialize,

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<LengthPercent> SpecifiedValueInfo for GenericLengthPercentageOrAuto<LengthPercent>

where LengthPercent: SpecifiedValueInfo,

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<LengthPercent> ToAnimatedValue for GenericLengthPercentageOrAuto<LengthPercent>

where LengthPercent: ToAnimatedValue,

type AnimatedValue = GenericLengthPercentageOrAuto<<LengthPercent as ToAnimatedValue>::AnimatedValue>

The type of the animated value.

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

Converts back an animated value into a computed value.

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

Converts this value to an animated value.

impl<LengthPercent> ToAnimatedZero for GenericLengthPercentageOrAuto<LengthPercent>

where LengthPercent: ToAnimatedZero,

fn to_animated_zero(&self) -> Result<Self, ()>

Returns a value that, when added with an underlying value, will produce the underlying value. This is used for SMIL animation’s “by-animation” where SMIL first interpolates from the zero value to the ‘by’ value, and then adds the result to the underlying value.

impl<LengthPercent> ToComputedValue for GenericLengthPercentageOrAuto<LengthPercent>

where LengthPercent: ToComputedValue,

type ComputedValue = GenericLengthPercentageOrAuto<<LengthPercent as ToComputedValue>::ComputedValue>

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<LengthPercent> ToCss for GenericLengthPercentageOrAuto<LengthPercent>

where LengthPercent: ToCss,

fn to_css<W>(&self, dest: &mut CssWriter<'_, W>) -> Result

where W: Write,

Serialize self in CSS syntax, writing to dest.

fn to_css_string(&self) -> String

Serialize self in CSS syntax and return a string.

impl<LengthPercent> ToResolvedValue for GenericLengthPercentageOrAuto<LengthPercent>

where LengthPercent: ToResolvedValue,

type ResolvedValue = GenericLengthPercentageOrAuto<<LengthPercent as ToResolvedValue>::ResolvedValue>

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<LengthPercent> ToShmem for GenericLengthPercentageOrAuto<LengthPercent>

where LengthPercent: ToShmem,

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

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

impl<LengthPercentage: Zero> Zero for LengthPercentageOrAuto<LengthPercentage>

fn zero() -> Self

Returns the zero value.

fn is_zero(&self) -> bool

Returns whether this value is zero.

impl<LengthPercent: Copy> Copy for GenericLengthPercentageOrAuto<LengthPercent>

impl<LengthPercent> StructuralPartialEq for GenericLengthPercentageOrAuto<LengthPercent>