Struct UiEvent 

pub struct UiEvent {

    pub id: NodeId,
    pub kind: String,
    pub x: Option<f32>,
    pub y: Option<f32>,
    pub client_x: Option<f32>,
    pub client_y: Option<f32>,
    pub button: Option<u8>,
    pub value: Option<String>,
    pub selection_start: Option<usize>,
    pub selection_end: Option<usize>,
    pub selection_direction: Option<String>,
    pub composing: Option<bool>,
    pub scroll_top: Option<f32>,
    pub scroll_left: Option<f32>,
    pub delta_x: Option<f32>,
    pub delta_y: Option<f32>,
    pub delta_mode: Option<String>,
    pub width: Option<f32>,
    pub height: Option<f32>,
}

An interaction event sent from Bevy back into JS, where the reconciler dispatches it to the matching React handler.

Fields

id: NodeId

kind: String

"click", a pointer kind ("pointerDown" / "pointerMove" / "pointerUp" / "pointerEnter" / "pointerLeave"), "scroll", "wheel", a canvas’s "resize", or one of an editableText’s "change" / "select" / "focus" / "blur" events.

x: Option<f32>

Cursor x within the node, normalized to 0..1 (left→right). Present only for pointer events; None for "click".

y: Option<f32>

Cursor y within the node, normalized to 0..1 (top→bottom). Present only for pointer events; None for "click".

client_x: Option<f32>

Absolute cursor x in window logical pixels (left→right, top-left origin). Present only for pointer events; lets a handler drag a node across the screen (the normalized x/y are clamped to the node and can’t).

client_y: Option<f32>

Absolute cursor y in window logical pixels (top→bottom). Present only for pointer events; see client_x.

button: Option<u8>

Which mouse button fired, in DOM MouseEvent.button numbering: 0 left/primary, 1 middle/auxiliary, 2 right/secondary. Present for "pointerDown"/"pointerMove"/"pointerUp"; absent for "click" (primary-only, like DOM click) and hover/scroll/text events.

value: Option<String>

The new text of an editableText. Present only for "change" events.

selection_start: Option<usize>

Selection anchor, a UTF-8 byte offset. Present only for "select".

selection_end: Option<usize>

Selection focus, a UTF-8 byte offset. Present only for "select".

selection_direction: Option<String>

"forward" (anchor ≤ focus), "backward", or "none" (collapsed). Present only for "select".

composing: Option<bool>

Whether an IME composition is in progress. Present on an editableText’s "change" / "select" events.

scroll_top: Option<f32>

Vertical scroll offset (logical px) → ScrollPosition.y. Present only for "scroll" events.

scroll_left: Option<f32>

Horizontal scroll offset (logical px) → ScrollPosition.x. Present only for "scroll" events.

delta_x: Option<f32>

Raw horizontal wheel delta (the frame’s accumulated scroll). Present only for "wheel" events; interpret with delta_mode.

delta_y: Option<f32>

Raw vertical wheel delta. Present only for "wheel" events; positive is a wheel-down / scroll-forward gesture, matching DOM WheelEvent.deltaY.

delta_mode: Option<String>

How to read the wheel deltas: "line" (mouse notches — scale by your own per-line distance) or "pixel" (trackpad — already in pixels). Mirrors DOM WheelEvent.deltaMode. Present only for "wheel" events.

width: Option<f32>

New logical (CSS px) width of a canvas’s laid-out box. Present only for "resize" events, which fire on first layout (0 → W×H) and whenever the physical pixel size changes (including a DPR change at constant logical size). The surface was cleared — redraw.

height: Option<f32>

New logical height of a canvas’s laid-out box. Present only for "resize" events; see width.

Trait Implementations

impl Clone for UiEvent

fn clone(&self) -> UiEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UiEvent

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

Formats the value using the given formatter.

impl Default for UiEvent

fn default() -> UiEvent

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for UiEvent

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for UiEvent

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.