Enum ScrollMsg 

pub enum ScrollMsg {
    Press {
        point: Point,
        content: Size,
        viewport: Size,
    },
    DragTo {
        point: Point,
        content: Size,
        viewport: Size,
    },
    Release {
        point: Point,
        content: Size,
        viewport: Size,
        snap_lines: Vec<i32>,
    },
}

Message a scrollable container emits in handle_touch; the host applies it in update(). Carries the geometry (and snap lines on release) so the owned ScrollState can integrate without touching layout.

Variants

Press

Finger landed inside the viewport.

Fields

point: Point

Touch point in screen space.

content: Size

Content size measured this frame.

viewport: Size

Viewport size this frame.

DragTo

Finger moved while dragging (pan).

Fields

point: Point

Touch point in screen space.

content: Size

Content size measured this frame.

viewport: Size

Viewport size this frame.

Release

Finger released after a drag (seed fling / spring-back).

Fields

point: Point

Touch point in screen space.

content: Size

Content size measured this frame.

viewport: Size

Viewport size this frame.

snap_lines: Vec<i32>

Candidate snap offsets from child positions (empty = no snap).

Trait Implementations

impl Clone for ScrollMsg

fn clone(&self) -> ScrollMsg

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScrollMsg

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

Formats the value using the given formatter.