Struct ScrollableState 

pub struct ScrollableState { /* private fields */ }

Holds the state for a scrollable component, managing scroll position and interaction.

It tracks the current and target scroll positions, the size of the scrollable content, and focus state.

The scroll position is smoothly interpolated over time to create a fluid scrolling effect.

Implementations

impl ScrollableState

pub fn new() -> Self

Creates a new ScrollableState with default values.

pub fn child_position(&self) -> PxPosition

Returns the current child position relative to the scrollable container.

This is primarily useful for components that need to implement custom virtualization strategies (e.g. lazy lists) and must know the current scroll offset. Values are clamped by the scroll logic, so consumers can safely derive their offset from the returned position.

pub fn visible_size(&self) -> ComputedData

Returns the currently visible viewport size of the scrollable container.

pub fn child_size(&self) -> ComputedData

Returns the measured size of the scrollable content.

pub fn override_child_size(&self, size: ComputedData)

Overrides the child size used for scroll extent calculation.

Trait Implementations

impl Clone for ScrollableState

fn clone(&self) -> ScrollableState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Default for ScrollableState

fn default() -> ScrollableState

Returns the “default value” for a type.