Trait style::values::animated::ToAnimatedZero

pub trait ToAnimatedZero: Sized {
    fn to_animated_zero(&self) -> Result<Self, ()>;
}

Returns a value similar to self that represents zero.

This trait is derivable with #[derive(ToAnimatedValue)]. If a field is annotated with #[animation(constant)], a clone of its value will be used instead of calling ToAnimatedZero::to_animated_zero on it.

If a variant is annotated with #[animation(error)], the corresponding match arm is not generated.

Trait bounds for type parameter Foo can be opted out of with #[animation(no_bound(Foo))] on the type definition.

Required Methods

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.

This is not the necessarily the same as the initial value of a property. For example, the initial value of ‘stroke-width’ is 1, but the zero value is 0, since adding 1 to the underlying value will not produce the underlying value.

Implementations on Foreign Types

impl ToAnimatedZero for f32

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

impl ToAnimatedZero for f64

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

impl ToAnimatedZero for i32

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

impl<T> ToAnimatedZero for Box<T>where
    T: ToAnimatedZero,

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

impl<T> ToAnimatedZero for Option<T>where
    T: ToAnimatedZero,

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

impl<T> ToAnimatedZero for Vec<T>where
    T: ToAnimatedZero,

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

impl<T> ToAnimatedZero for Box<[T]>where
    T: ToAnimatedZero,

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

Implementors

impl ToAnimatedZero for AnimationValue

impl ToAnimatedZero for Visibility

impl ToAnimatedZero for AngleOrPercentage

impl ToAnimatedZero for NumberOrPercentage

impl ToAnimatedZero for CalcLengthPercentageLeaf

impl ToAnimatedZero for MinMaxOp

impl ToAnimatedZero for RaySize

impl ToAnimatedZero for FontSizeKeyword

impl ToAnimatedZero for DProperty

impl ToAnimatedZero for IsAbsolute

impl ToAnimatedZero for PathCommand

impl ToAnimatedZero for style::properties::longhands::background_position_x::computed_value::OwnedList<<T as ToAnimatedValue>::AnimatedValue>

impl ToAnimatedZero for style::properties::longhands::background_position_y::computed_value::OwnedList<<T as ToAnimatedValue>::AnimatedValue>

impl ToAnimatedZero for style::properties::longhands::background_size::computed_value::OwnedList<<T as ToAnimatedValue>::AnimatedValue>

impl ToAnimatedZero for style::properties::longhands::box_shadow::computed_value::OwnedList<<T as ToAnimatedValue>::AnimatedValue>

impl ToAnimatedZero for style::properties::longhands::filter::computed_value::OwnedList<<T as ToAnimatedValue>::AnimatedValue>

impl ToAnimatedZero for style::properties::longhands::text_shadow::computed_value::OwnedList<<T as ToAnimatedValue>::AnimatedValue>

impl ToAnimatedZero for Angle

impl ToAnimatedZero for FontSize

impl ToAnimatedZero for FontWeight

impl ToAnimatedZero for CSSPixelLength

impl ToAnimatedZero for CalcLengthPercentage

impl ToAnimatedZero for LengthPercentage

impl ToAnimatedZero for OffsetRotate

impl ToAnimatedZero for Percentage

impl ToAnimatedZero for Au

impl ToAnimatedZero for LetterSpacing

impl ToAnimatedZero for KeywordInfo

impl ToAnimatedZero for ArcFlag

impl ToAnimatedZero for CoordPair

impl ToAnimatedZero for SVGPathData

impl ToAnimatedZero for Auto

impl ToAnimatedZero for None_

impl ToAnimatedZero for RGBA

impl ToAnimatedZero for FontVariationSettings

impl ToAnimatedZero for Transform

impl ToAnimatedZero for TransformOperation

Build an equivalent ‘identity transform function list’ based on an existing transform list. http://dev.w3.org/csswg/css-transforms/#none-transform-animation

impl ToAnimatedZero for GridTemplateComponent

impl ToAnimatedZero for Color

impl ToAnimatedZero for AnimatedFilter

http://dev.w3.org/csswg/css-transforms/#none-transform-animation

impl<A, B> ToAnimatedZero for Either<A, B>where
    A: ToAnimatedZero,
    B: ToAnimatedZero,

impl<Angle> ToAnimatedZero for FontStyle<Angle>where
    Angle: ToAnimatedZero,

impl<Angle> ToAnimatedZero for GenericOffsetPath<Angle>where
    Angle: ToAnimatedZero,

impl<Angle> ToAnimatedZero for RayFunction<Angle>where
    Angle: ToAnimatedZero,

impl<B, U> ToAnimatedZero for ClipPath<B, U>

impl<B, U> ToAnimatedZero for ShapeOutside<B, U>

impl<C> ToAnimatedZero for GenericColorOrAuto<C>where
    C: ToAnimatedZero,

impl<C> ToAnimatedZero for GenericSVGPaintFallback<C>where
    C: ToAnimatedZero,

impl<C> ToAnimatedZero for GenericCaretColor<C>where
    C: ToAnimatedZero,

impl<C, U> ToAnimatedZero for GenericSVGPaintKind<C, U>where
    C: ToAnimatedZero,

impl<Color> ToAnimatedZero for GenericScrollbarColor<Color>where
    Color: ToAnimatedZero,

impl<Color, SizeLength, BlurShapeLength, ShapeLength> ToAnimatedZero for GenericBoxShadow<Color, SizeLength, BlurShapeLength, ShapeLength>where
    Color: ToAnimatedZero,
    SizeLength: ToAnimatedZero,
    BlurShapeLength: ToAnimatedZero,
    ShapeLength: ToAnimatedZero,

impl<Color, SizeLength, ShapeLength> ToAnimatedZero for GenericSimpleShadow<Color, SizeLength, ShapeLength>where
    Color: ToAnimatedZero,
    SizeLength: ToAnimatedZero,
    ShapeLength: ToAnimatedZero,

impl<Color, Url> ToAnimatedZero for GenericSVGPaint<Color, Url>where
    Color: ToAnimatedZero,

impl<H, V> ToAnimatedZero for GenericPosition<H, V>where
    H: ToAnimatedZero,
    V: ToAnimatedZero,

impl<H, V, Depth> ToAnimatedZero for GenericTransformOrigin<H, V, Depth>where
    H: ToAnimatedZero,
    V: ToAnimatedZero,
    Depth: ToAnimatedZero,

impl<I> ToAnimatedZero for GenericZIndex<I>where
    I: ToAnimatedZero,

impl<L> ToAnimatedZero for VerticalAlign<L>

impl<L> ToAnimatedZero for GenericCalcNode<L>where
    L: ToAnimatedZero,

impl<L> ToAnimatedZero for GenericSVGLength<L>where
    L: ToAnimatedZero,

impl<L> ToAnimatedZero for GenericSVGStrokeDashArray<L>where
    L: ToAnimatedZero,

impl<L> ToAnimatedZero for GenericTextDecorationLength<L>where
    L: ToAnimatedZero,

impl<L> ToAnimatedZero for BorderSpacing<L>where
    L: ToAnimatedZero,

impl<L> ToAnimatedZero for GenericBorderCornerRadius<L>where
    L: ToAnimatedZero,

impl<L> ToAnimatedZero for Size2D<L>where
    L: ToAnimatedZero,

impl<L, N> ToAnimatedZero for GenericLengthOrNumber<L, N>where
    L: ToAnimatedZero,
    N: ToAnimatedZero,

impl<LP, N> ToAnimatedZero for GenericBorderImageSideWidth<LP, N>where
    LP: ToAnimatedZero,
    N: ToAnimatedZero,

impl<LengthOrAuto> ToAnimatedZero for GenericClipRect<LengthOrAuto>where
    LengthOrAuto: ToAnimatedZero,

impl<LengthPercent> ToAnimatedZero for GenericBackgroundSize<LengthPercent>where
    LengthPercent: ToAnimatedZero,

impl<LengthPercent> ToAnimatedZero for GenericLengthPercentageOrAuto<LengthPercent>where
    LengthPercent: ToAnimatedZero,

impl<LengthPercent> ToAnimatedZero for GenericLengthPercentageOrNormal<LengthPercent>where
    LengthPercent: ToAnimatedZero,

impl<LengthPercent> ToAnimatedZero for GenericMaxSize<LengthPercent>where
    LengthPercent: ToAnimatedZero,

impl<LengthPercent> ToAnimatedZero for GenericSize<LengthPercent>where
    LengthPercent: ToAnimatedZero,

impl<LengthPercentage, Length> ToAnimatedZero for GenericTranslate<LengthPercentage, Length>where
    LengthPercentage: Zero + ToAnimatedZero,
    Length: Zero + ToAnimatedZero,

impl<N> ToAnimatedZero for AspectRatio<N>

impl<N, L> ToAnimatedZero for LineHeight<N, L>

impl<NonNegativeLength> ToAnimatedZero for GenericPerspective<NonNegativeLength>where
    NonNegativeLength: ToAnimatedZero,

impl<Number> ToAnimatedZero for GenericFontSizeAdjust<Number>where
    Number: ToAnimatedZero,

impl<Number> ToAnimatedZero for GenericScale<Number>where
    Number: ToAnimatedZero,

impl<Number, Angle> ToAnimatedZero for GenericRotate<Number, Angle>where
    Number: ToAnimatedZero,
    Angle: ToAnimatedZero,

impl<NumberOrPercentage> ToAnimatedZero for GenericBorderImageSlice<NumberOrPercentage>where
    NumberOrPercentage: ToAnimatedZero,

impl<OpacityType> ToAnimatedZero for GenericSVGOpacity<OpacityType>where
    OpacityType: ToAnimatedZero,

impl<Pos> ToAnimatedZero for GenericPositionOrAuto<Pos>where
    Pos: ToAnimatedZero,

impl<PositiveInteger> ToAnimatedZero for ColumnCount<PositiveInteger>where
    PositiveInteger: ToAnimatedZero,

impl<R> ToAnimatedZero for GenericClipRectOrAuto<R>where
    R: ToAnimatedZero,

impl<S> ToAnimatedZero for GenericFlexBasis<S>where
    S: ToAnimatedZero,

impl<T> ToAnimatedZero for Optional<T>where
    T: ToAnimatedZero,

impl<T> ToAnimatedZero for ArcSlice<T>where
    T: ToAnimatedZero,

impl<T> ToAnimatedZero for OwnedSlice<T>where
    T: ToAnimatedZero,

impl<T> ToAnimatedZero for Rect<T>where
    T: ToAnimatedZero,

impl<T> ToAnimatedZero for GreaterThanOrEqualToOne<T>where
    T: ToAnimatedZero,

impl<T> ToAnimatedZero for NonNegative<T>where
    T: ToAnimatedZero,

impl<T> ToAnimatedZero for ZeroToOne<T>where
    T: ToAnimatedZero,

impl<U> ToAnimatedZero for GenericUrlOrNone<U>where
    U: ToAnimatedZero,