Enum InputEvent 

#[non_exhaustive]
pub enum InputEvent {
    Button {
        code: ButtonCode,
        pressed: bool,
    },
    Pointer {
        x: i16,
        y: i16,
    },
    PointerButton {
        button: PointerButton,
        pressed: bool,
    },
    Touch {
        id: u8,
        phase: TouchPhase,
        x: i16,
        y: i16,
    },
    Scroll {
        axis: ScrollAxis,
        delta: i16,
    },
    Key {
        scancode: u16,
        pressed: bool,
    },
}

A semantic input event, independent of its hardware or OS source.

Positions are in logical UI coordinates — the same units an HMI app renders at — so the source owns device-to-logical calibration and every backend consumes one coordinate space. i16 is deliberate: it spans any realistic panel while staying a fixed, IpcSafe width across cores (unlike usize).

The enum is #[non_exhaustive]; match with a wildcard arm so new event kinds can be added without a breaking change.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Button

A digital button, D-pad direction, or key changed state.

Fields

code: ButtonCode

Which logical control changed.

pressed: bool

true on press, false on release.

Pointer

Absolute pointer/cursor motion, in logical UI coordinates.

Fields

x: i16

Logical X, clamped by the source to the UI width.

y: i16

Logical Y, clamped by the source to the UI height.

PointerButton

A pointer (mouse) button changed state at the last known position.

Fields

button: PointerButton

Which pointer button changed.

pressed: bool

true on press, false on release.

Touch

A single touch contact, in logical UI coordinates.

Fields

id: u8

Stable contact identifier for the lifetime of one touch.

phase: TouchPhase

Lifecycle phase of this contact.

x: i16

Logical X of the contact.

y: i16

Logical Y of the contact.

Scroll

A scroll/wheel tick along one axis, in logical detents.

Fields

axis: ScrollAxis

Axis the scroll applies to.

delta: i16

Signed magnitude; sign follows the natural axis direction.

Key

A raw keyboard scancode, for text and navigation backends.

The scancode space is backend-defined (e.g. USB HID usage IDs); this crate does not enumerate keys, keeping the model small and stable.

Fields

scancode: u16

Backend-defined scancode.

pressed: bool

true on press, false on release.

Trait Implementations

impl Clone for InputEvent

fn clone(&self) -> InputEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for InputEvent

impl Debug for InputEvent

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for InputEvent

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for InputEvent

impl IpcSafe for InputEvent

impl PartialEq for InputEvent

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for InputEvent

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for InputEvent