Struct VirtualListScrollHandle 

pub struct VirtualListScrollHandle { /* private fields */ }

A scroll handle with VirtualList-specific helpers (scroll-to-item).

Implementations

impl VirtualListScrollHandle

pub fn new() -> Self

pub fn base_handle(&self) -> &ScrollHandle

pub fn scroll_to_item(&self, index: usize, strategy: ScrollStrategy)

pub fn scroll_to_index(&self, index: usize, strategy: ScrollStrategy)

pub fn scroll_to_bottom(&self)

Methods from Deref<Target = ScrollHandle>

pub fn offset(&self) -> Point

pub fn revision(&self) -> u64

Monotonic revision counter that increments when the scroll offset changes via ScrollHandle::set_offset (or helpers that call it).

The declarative runtime uses this to detect out-of-band scroll changes (e.g. component-driven “scroll into view”) and invalidate the bound scroll nodes, even when the element instances themselves did not change.

pub fn max_offset(&self) -> Point

pub fn clamp_offset(&self, offset: Point) -> Point

pub fn set_offset(&self, offset: Point)

pub fn scroll_to_offset(&self, offset: Point)

pub fn viewport_size(&self) -> Size

pub fn set_viewport_size(&self, viewport: Size)

pub fn content_size(&self) -> Size

pub fn set_content_size(&self, content: Size)

pub fn scroll_to_range_y( &self, start_y: Px, end_y: Px, strategy: ScrollStrategy, )

Trait Implementations

impl Clone for VirtualListScrollHandle

fn clone(&self) -> VirtualListScrollHandle

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VirtualListScrollHandle

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

Formats the value using the given formatter.

impl Default for VirtualListScrollHandle

fn default() -> VirtualListScrollHandle

Returns the “default value” for a type.

impl Deref for VirtualListScrollHandle

type Target = ScrollHandle

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.