Struct MeasuredHeightMotionOutput 

pub struct MeasuredHeightMotionOutput {
    pub state_id: GlobalElementId,
    pub open: bool,
    pub open_for_motion: bool,
    pub wants_measurement: bool,
    pub transition: TransitionOutput,
    pub should_render: bool,
    pub wrapper_refinement: LayoutRefinement,
    pub wrapper_opacity: f32,
}

Output describing how to render a collapsible-style measured-height wrapper for the current element root.

This helper is usable by any “open/close with height animation” component (Collapsible, Accordion items, etc.). It does not build elements; it only describes the wrapper/refinement and how to update cached measurements once an element id is known.

Fields

state_id: GlobalElementId

open: bool

The requested open state (source of truth).

open_for_motion: bool

Whether the transition should be driven as open this frame.

When there is no cached measurement, this is false even if open=true so that the first open can mount an off-flow measurement wrapper before animating.

wants_measurement: bool

Whether an off-flow measurement pass is required this frame.

transition: TransitionOutput

Transition timeline output for open_for_motion.

should_render: bool

Whether the content wrapper should be present in the element tree.

wrapper_refinement: LayoutRefinement

Layout refinement for the wrapper (either a clipped-height wrapper or a measurement wrapper).

wrapper_opacity: f32

Opacity to apply to the wrapper subtree (0.0 for measurement; 1.0 for visible content).

Trait Implementations

impl Clone for MeasuredHeightMotionOutput

fn clone(&self) -> MeasuredHeightMotionOutput

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MeasuredHeightMotionOutput

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

Formats the value using the given formatter.