Enum GenericImage

#[repr(C, u8)]
pub enum GenericImage<G, ImageUrl, Color, Percentage, Resolution> {
    None,
    Url(ImageUrl),
    Gradient(Box<G>),
    PaintWorklet(Box<PaintWorklet>),
    CrossFade(Box<GenericCrossFade<Self, Color, Percentage>>),
    ImageSet(Box<GenericImageSet<Self, Resolution>>),
}

An <image> | none value.

https://drafts.csswg.org/css-images/#image-values

Variants

None

none variant.

Url(ImageUrl)

A <url()> image.

Gradient(Box<G>)

A <gradient> image. Gradients are rather large, and not nearly as common as urls, so we box them here to keep the size of this enum sane.

PaintWorklet(Box<PaintWorklet>)

A paint worklet image. https://drafts.css-houdini.org/css-paint-api/

CrossFade(Box<GenericCrossFade<Self, Color, Percentage>>)

A <cross-fade()> image. Storing this directly inside of GenericImage increases the size by 8 bytes so we box it here and store images directly inside of cross-fade instead of boxing them there.

ImageSet(Box<GenericImageSet<Self, Resolution>>)

An image-set() function.

Implementations

impl GenericImage<GenericGradient<LineDirection, LengthPercentage, NonNegative<Length>, NonNegative<LengthPercentage>, GenericPosition<PositionComponent<HorizontalPositionKeyword>, PositionComponent<VerticalPositionKeyword>>, Angle, AngleOrPercentage, Color>, CssUrl, Color, Percentage, Resolution>

fn parse_with_cors_mode<'i, 't>( context: &ParserContext<'_>, input: &mut Parser<'i, 't>, cors_mode: CorsMode, flags: ParseImageFlags, ) -> Result<Image, ParseError<'i>>

impl GenericImage<GenericGradient<LineDirection, LengthPercentage, NonNegative<Length>, NonNegative<LengthPercentage>, GenericPosition<PositionComponent<HorizontalPositionKeyword>, PositionComponent<VerticalPositionKeyword>>, Angle, AngleOrPercentage, Color>, CssUrl, Color, Percentage, Resolution>

pub fn for_cascade(url: Arc<Url>) -> Self

Creates an already specified image value from an already resolved URL for insertion in the cascade.

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

Provides an alternate method for parsing that associates the URL with anonymous CORS headers.

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

Provides an alternate method for parsing, but forbidding none

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

Provides an alternate method for parsing, but only for urls.

Trait Implementations

impl<G: Clone, ImageUrl: Clone, Color: Clone, Percentage: Clone, Resolution: Clone> Clone for GenericImage<G, ImageUrl, Color, Percentage, Resolution>

fn clone(&self) -> GenericImage<G, ImageUrl, Color, Percentage, Resolution>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<G, U, C, P, Resolution> Debug for Image<G, U, C, P, Resolution>

where Image<G, U, C, P, Resolution>: ToCss,

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

Formats the value using the given formatter.

impl<G, ImageUrl, Color, Percentage, Resolution> MallocSizeOf for GenericImage<G, ImageUrl, Color, Percentage, Resolution>

where G: MallocSizeOf, ImageUrl: MallocSizeOf, Color: MallocSizeOf, Percentage: MallocSizeOf, Resolution: 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<G: PartialEq, ImageUrl: PartialEq, Color: PartialEq, Percentage: PartialEq, Resolution: PartialEq> PartialEq for GenericImage<G, ImageUrl, Color, Percentage, Resolution>

fn eq( &self, other: &GenericImage<G, ImageUrl, Color, Percentage, Resolution>, ) -> 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<G, ImageUrl, Color, Percentage, Resolution> SpecifiedValueInfo for GenericImage<G, ImageUrl, Color, Percentage, Resolution>

where G: SpecifiedValueInfo, ImageUrl: SpecifiedValueInfo, Color: SpecifiedValueInfo, Percentage: SpecifiedValueInfo, Resolution: 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<G, ImageUrl, Color, Percentage, Resolution> ToComputedValue for GenericImage<G, ImageUrl, Color, Percentage, Resolution>

where G: ToComputedValue, ImageUrl: ToComputedValue, Color: ToComputedValue, Percentage: ToComputedValue, Resolution: ToComputedValue, Box<GenericImageSet<Self, Resolution>>: ToComputedValue<ComputedValue = Box<GenericImageSet<GenericImage<<G as ToComputedValue>::ComputedValue, <ImageUrl as ToComputedValue>::ComputedValue, <Color as ToComputedValue>::ComputedValue, <Percentage as ToComputedValue>::ComputedValue, <Resolution as ToComputedValue>::ComputedValue>, <Resolution as ToComputedValue>::ComputedValue>>>,

type ComputedValue = GenericImage<<G as ToComputedValue>::ComputedValue, <ImageUrl as ToComputedValue>::ComputedValue, <Color as ToComputedValue>::ComputedValue, <Percentage as ToComputedValue>::ComputedValue, <Resolution 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<G, U, C, P, Resolution> ToCss for Image<G, U, C, P, Resolution>

where G: ToCss, U: ToCss, C: ToCss, P: ToCss, Resolution: 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<G, ImageUrl, Color, Percentage, Resolution> ToResolvedValue for GenericImage<G, ImageUrl, Color, Percentage, Resolution>

where G: ToResolvedValue, ImageUrl: ToResolvedValue, Color: ToResolvedValue, Percentage: ToResolvedValue, Resolution: ToResolvedValue,

type ResolvedValue = GenericImage<<G as ToResolvedValue>::ResolvedValue, <ImageUrl as ToResolvedValue>::ResolvedValue, <Color as ToResolvedValue>::ResolvedValue, <Percentage as ToResolvedValue>::ResolvedValue, <Resolution 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<G, ImageUrl, Color, Percentage, Resolution> ToShmem for GenericImage<G, ImageUrl, Color, Percentage, Resolution>

where G: ToShmem, ImageUrl: ToShmem, Color: ToShmem, Percentage: ToShmem, Resolution: ToShmem,

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

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

impl<G, ImageUrl, Color, Percentage, Resolution> StructuralPartialEq for GenericImage<G, ImageUrl, Color, Percentage, Resolution>