Enum PointerEventKind 

pub enum PointerEventKind {
    Down,
    Move,
    Up,
    Cancel,
    Scroll,
    Zoom,
    RotaryScrollPre,
    RotaryScroll,
    Enter,
    Exit,
}

What a pointer event reports.

Variants

Down

A pointer went down: a mouse button, a finger or a pen touched.

Move

A pointer moved.

Up

A pointer went up.

Cancel

The system canceled the gesture of the pointer.

Scroll

A wheel or trackpad scroll. The delta is in PointerEvent::scroll_delta.

Zoom

Discrete zoom step (desktop ctrl+wheel, browser pinch-trackpad). The multiplicative factor is carried in PointerEvent::zoom_delta.

RotaryScrollPre

Rotary scroll (Wear OS crown / rotating bezel) during the capture pass, which runs root-to-focused so ancestors can intercept the event before the focused node sees it.

The scroll amounts are carried in PointerEvent::scroll_delta (y = vertical pixels, x = horizontal pixels) and the rotary uptime in PointerEvent::time_ms; use PointerEvent::rotary_scroll_event to read them back as a RotaryScrollEvent. Mirrors Compose’s onPreRotaryScrollEvent.

RotaryScroll

Rotary scroll during the bubble pass, which runs focused-to-root. Mirrors Compose’s onRotaryScrollEvent.

Enter

A pointer began to hover over the receiving node.

Exit

A pointer stopped hovering over the receiving node.

Implementations

impl PointerEventKind

pub fn is_rotary(self) -> bool

Returns true for the two rotary passes.

Trait Implementations

impl Clone for PointerEventKind

fn clone(&self) -> PointerEventKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PointerEventKind

impl Debug for PointerEventKind

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

Formats the value using the given formatter.

impl Eq for PointerEventKind

impl PartialEq for PointerEventKind

fn eq(&self, other: &PointerEventKind) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for PointerEventKind