Struct Motion 

pub struct Motion {
    pub ms: u64,
    pub scale: f32,
    pub curve: Curve,
}

The duration, scale and curve v3 declares for one overlay’s transition.

v3 does not animate every overlay the same way, which is what reading the guide rather than the stylesheets had suggested. Each surface names its own duration-*, ease-* and zoom-*, and a modal panel even shrinks in from 105% rather than growing from 90%. The constants below are transcribed one per group, and anim_audit.py checks them against the CSS.

Fields

ms: u64

Duration in milliseconds.

scale: f32

The scale the animation starts at (entering) or ends at (exiting). 1.0 means no scaling — a fade alone.

curve: Curve

Easing curve.

Implementations

impl Motion

pub const PANEL_IN: Motion

duration-250 ease-out-quad zoom-in-105 — Modal and AlertDialog panels, which settle down onto the page.

pub const PANEL_OUT: Motion

duration-100 ease-out-quad zoom-out-95.

pub const BACKDROP_IN: Motion

duration-150 ease-out fade-in-0 — the backdrop behind a panel, which only fades.

pub const BACKDROP_OUT: Motion

duration-100 ease-out fade-out-0.

pub const POPOVER_IN: Motion

duration-150 ease-smooth zoom-in-90 — Popover, Dropdown, Tooltip.

pub const LIST_IN: Motion

duration-150 ease-smooth zoom-in-95 — Select, ComboBox, the date and colour pickers, which start closer to full size.

pub const LIST_OUT: Motion

duration-100 ease-smooth zoom-out-95 — the exit both share.

pub const DISCLOSURE: Motion

.disclosure__content is a transition, not an animate-in: height 200ms ease-out-quad, opacity 200ms ease-out. The collapsible panel helper measures its natural child extent and drives both properties at these curves.

pub const FIELD_ERROR_HEIGHT: Motion

field-error.css expands the error row over 350ms with the smooth curve, independently of its shorter 150ms opacity transition.

pub const FIELD_ERROR_OPACITY: Motion

Opacity transition of the field error row: 150ms with the Out curve.

pub const DRAWER_IN: Motion

translate 250ms cubic-bezier(0.32, 0.72, 0, 1) — the drawer’s slide, which drawer.css gives its own --drawer-enter-* tokens.

pub const DRAWER_OUT: Motion

--drawer-exit-duration: 200ms, same curve.

pub const DRAWER_BACKDROP_IN: Motion

Drawer-specific backdrop fade from drawer.css: it follows the panel’s fluid enter curve instead of the shared modal backdrop token.

pub const DRAWER_BACKDROP_OUT: Motion

Drawer-specific backdrop exit from drawer.css.

pub const FLUID_IN: Motion

duration-250 ease-out-fluid zoom-in-95 — Autocomplete alone.

pub const FLUID_OUT: Motion

duration-100 ease-out-quad zoom-out-95.

pub const TOAST_IN: Motion

350ms ease-out-fluid — Toast’s placement-aware card translation and fade when a new notification enters the queue.

pub const TOAST_OUT: Motion

350ms ease-out-fluid — the frontmost Toast card leaves toward the placement edge while its opacity settles to zero.

pub const TOAST_STACK_OUT: Motion

200ms ease-out-fluid and scale(.96) — a non-frontmost Toast card retires in an expanded/collapsed stack without leaving its slot.

Trait Implementations

impl Clone for Motion

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Motion

impl Debug for Motion

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

Formats the value using the given formatter.