Enum style::values::specified::length::Length

pub enum Length {
    NoCalc(NoCalcLength),
    Calc(Box<CalcLengthOrPercentage>),
}

An extension to NoCalcLength to parse calc expressions. This is commonly used for the <length> values.

https://drafts.csswg.org/css-values/#lengths

Variants

NoCalc(NoCalcLength)

The internal length type that cannot parse calc

Calc(Box<CalcLengthOrPercentage>)

A calc expression.

https://drafts.csswg.org/css-values/#calc-notation

Methods

impl Length

pub fn zero() -> Length

Returns a zero length.

pub fn parse_dimension(
    context: &ParserContext,
    value: CSSFloat,
    unit: &str
) -> Result<Length, ()>

Parse a given absolute or relative dimension.

pub fn parse_non_negative<'i, 't>(
    context: &ParserContext,
    input: &mut Parser<'i, 't>
) -> Result<Length, ParseError<'i>>

Parse a non-negative length

pub fn parse_non_negative_quirky<'i, 't>(
    context: &ParserContext,
    input: &mut Parser<'i, 't>,
    allow_quirks: AllowQuirks
) -> Result<Length, ParseError<'i>>

Parse a non-negative length, allowing quirks.

pub fn from_px(px_value: CSSFloat) -> Length

Get an absolute length from a px value.

pub fn take(&mut self) -> Self

Extract inner length without a clone, replacing it with a 0 Au

Use when you need to move out of a length array without cloning

impl Length

pub fn parse_quirky<'i, 't>(
    context: &ParserContext,
    input: &mut Parser<'i, 't>,
    allow_quirks: AllowQuirks
) -> Result<Self, ParseError<'i>>

Parses a length, with quirks.

Trait Implementations

impl ToComputedValue for Length

type ComputedValue = CSSPixelLength

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

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.

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

Convert a computed value to specified value form.

impl ToAbsoluteLength for SpecifiedLength

fn to_pixel_length(&self, _containing_len: Option<Au>) -> Result<CSSFloat, ()>

Returns the absolute length as pixel value.

impl Clone for Length

fn clone(&self) -> Length

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Length

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl MallocSizeOf for Length

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 PartialEq for Length

fn eq(&self, __arg_0: &Length) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &Length) -> bool

This method tests for !=.

impl ToCss for Length

fn to_css<W>(&self, dest: &mut 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 From<NoCalcLength> for Length

fn from(len: NoCalcLength) -> Self

Performs the conversion.

impl Mul<CSSFloat> for Length

type Output = Length

The resulting type after applying the * operator.

fn mul(self, scalar: CSSFloat) -> Length

Performs the * operation.

impl Parse for Length

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

Parse a value of this type.

impl From<Length> for NonNegativeLength

fn from(len: Length) -> Self

Performs the conversion.

impl From<Length> for LengthOrPercentage

fn from(len: Length) -> LengthOrPercentage

Performs the conversion.