Struct AnimSpec 

pub struct AnimSpec {
    pub keyframes: Vec<Keyframe>,
    pub enter: Option<Enter>,
    pub exit: Option<Enter>,
    pub iterations: Option<f32>,
}

Per-node animation declarations. Boxed on NodeSpec: enter and exit are 60 bytes each and almost every node has neither.

Fields

keyframes: Vec<Keyframe>

CSS-style stops for the animatable slots (see crate::keyframes): with a transition, the slots a stop names cycle through the stops over the transition’s duration, in its repeat direction, offset by its delay_ms — forever, and without the view redrawing. Slots no stop names still tween toward what the view declares. Empty = none.

enter: Option<Enter>

Where this node’s slots start the first frame it is seen (see crate::enter): with a transition, the slots it names ease in from there instead of snapping — dx/dy slide the node in from that far away, bg fades it in. A node that vanishes and returns enters again. None = first sight snaps.

exit: Option<Enter>

Where this node’s slots end the frame after the view stops declaring it (see crate::depart). An exit is an Enter read the other way: with a transition, the departing subtree is copied out of the last frame that had it and replayed — frozen where layout left it, on top, inert — while the slots this names ease from where they were toward what it declares. Needs a stable key across frames, and a transition with a duration; without both, a removed node vanishes at once as it always did.

iterations: Option<f32>

How many times the keyframes cycle runs (CSS’s animation-iteration-count, backlog F133); None, the default, is for ever. A finite cycle plays from the first frame its node is declared with it, holds its first stop through its delay, and rests where its last iteration ended once it is over, owing no frame (CSS’s animation-fill-mode: both). A fraction of an iteration ends partway through one.

Implementations

impl AnimSpec

pub const EMPTY: AnimSpec

The group as a node that declares none of it — what NodeSpec’s accessor hands back when the box is None.

Trait Implementations

impl Clone for AnimSpec

fn clone(&self) -> AnimSpec

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AnimSpec

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

Formats the value using the given formatter.

impl Default for AnimSpec

fn default() -> AnimSpec

Returns the “default value” for a type.

impl PartialEq for AnimSpec

fn eq(&self, other: &AnimSpec) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for AnimSpec