Struct Lottie 

pub struct Lottie {
    pub src: Option<String>,
    pub data: Option<String>,
    pub speed: f32,
    pub repeat: bool,
    pub frames_dir: Option<String>,
    pub timing: TimingConfig,
    pub style: CssStyle,
    pub timeline: Vec<TimelineStep>,
    pub stagger: Option<f32>,
}

A Lottie animation component that renders frame-by-frame from a .json Lottie file.

With the lottie-native feature (default), Lottie JSON files are rendered natively via the thorvg CPU rasterizer — no external tools required. Priority:

1. frames_dir — backward-compatible pre-rendered PNG frames directory.
2. Native thorvg path — resolves data (inline JSON) or src (file path).

Without lottie-native, only frames_dir works; all other inputs produce no output.

Fields

src: Option<String>

Path to the Lottie JSON file.

data: Option<String>

Inline Lottie JSON data.

speed: f32

Playback speed multiplier (1.0 = normal, 2.0 = double speed).

repeat: bool

Whether to loop the animation.

frames_dir: Option<String>

Directory containing pre-rendered frames (PNG files named 0000.png, 0001.png, …). If provided, the component loads frames directly from this directory. Takes priority over the native thorvg path.

timing: TimingConfig

style: CssStyle

timeline: Vec<TimelineStep>

stagger: Option<f32>

Trait Implementations

impl Animatable for Lottie

fn animation_effects(&self) -> &[AnimationEffect]

fn timeline_steps(&self) -> &[TimelineStep]

Timed animation steps (timeline field): each step’s animations are resolved with delay += step.at. Empty by default.

impl Debug for Lottie

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Lottie

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl JsonSchema for Lottie

fn schema_name() -> String

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn is_referenceable() -> bool

Whether JSON Schemas generated for this type should be re-used where possible using the $ref keyword.

impl Painter for Lottie

fn paint_content( &self, canvas: &Canvas, layout: &BoxLayout, _props: &AnimatedProperties, ctx: &PaintCtx, )

Paint the component’s content into the canvas. The canvas is already translated to the content-box origin and clipped if overflow: hidden was set. Generic decorations (bg, border, shadow) are already painted by the engine.

fn intrinsic_size( &self, _available: AvailableSize, _ctx: &MeasureCtx, ) -> Option<(f32, f32)>

Optional intrinsic measurement for leaves like text, image, codeblock. Return None to let taffy compute the size from the CSS style alone. available mirrors taffy’s AvailableSpace.

impl Serialize for Lottie

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Styled for Lottie

fn style_config(&self) -> &CssStyle

impl StyledMut for Lottie

fn style_config_mut(&mut self) -> &mut CssStyle

impl Timed for Lottie

fn timing(&self) -> (Option<f64>, Option<f64>)