Struct AnimatedScrollState 

pub struct AnimatedScrollState {

    pub current_offset: LogicalPosition,
    pub animation: Option<ScrollAnimation>,
    pub last_activity: Instant,
    pub container_rect: LogicalRect,
    pub content_rect: LogicalRect,
    pub virtual_scroll_size: Option<LogicalSize>,
    pub virtual_scroll_offset: Option<LogicalPosition>,
    pub overscroll_behavior_x: OverscrollBehavior,
    pub overscroll_behavior_y: OverscrollBehavior,
    pub overflow_scrolling: OverflowScrolling,
    pub scrollbar_thickness: f32,
    pub visual_width_px: f32,
    pub has_horizontal_scrollbar: bool,
    pub has_vertical_scrollbar: bool,
}

The complete scroll state for a single node (with animation support)

Fields

current_offset: LogicalPosition

Current scroll offset (live, may be animating)

animation: Option<ScrollAnimation>

Ongoing smooth scroll animation, if any

last_activity: Instant

Last time scroll activity occurred (for fading scrollbars)

container_rect: LogicalRect

Bounds of the scrollable container

content_rect: LogicalRect

Bounds of the total content (for calculating scroll limits)

virtual_scroll_size: Option<LogicalSize>

Virtual scroll size from VirtualView callback (if this node hosts a VirtualView). When set, clamp logic uses this instead of content_rect for max scroll bounds.

virtual_scroll_offset: Option<LogicalPosition>

Virtual scroll offset from VirtualView callback

overscroll_behavior_x: OverscrollBehavior

Per-node overscroll behavior for X axis (from CSS overscroll-behavior-x)

overscroll_behavior_y: OverscrollBehavior

Per-node overscroll behavior for Y axis (from CSS overscroll-behavior-y)

overflow_scrolling: OverflowScrolling

Per-node overflow scrolling mode (from CSS -azul-overflow-scrolling)

scrollbar_thickness: f32

CSS-resolved scrollbar thickness (from scrollbar-width property). Used for rendering and hit-testing. Defaults to 16.0 if not set.

visual_width_px: f32

Visual rendering width in CSS pixels (e.g. 8.0 for thin overlay). Non-zero even for overlay scrollbars. Falls back to scrollbar_thickness if 0.

has_horizontal_scrollbar: bool

Whether this node also needs a horizontal scrollbar (affects vertical geometry)

has_vertical_scrollbar: bool

Whether this node also needs a vertical scrollbar (affects horizontal geometry)

Implementations

impl AnimatedScrollState

pub fn new(now: Instant) -> Self

Create a new scroll state initialized at offset (0, 0).

pub fn clamp(&self, position: LogicalPosition) -> LogicalPosition

Clamp a scroll position to valid bounds (0 to max_scroll).

When virtual_scroll_size is set (for VirtualView nodes), the max bounds are computed from the virtual size instead of content_rect.

Trait Implementations

impl Clone for AnimatedScrollState

fn clone(&self) -> AnimatedScrollState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for AnimatedScrollState

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

Formats the value using the given formatter.