Enum Event 

pub enum Event {
    Pointer(PointerEvent),
    PointerCancel(PointerCancelEvent),
    Timer {
        token: TimerToken,
    },
    Ime(ImeEvent),
    ExternalDrag(ExternalDragEvent),
    ExternalDropData(ExternalDropDataEvent),
    InternalDrag(InternalDragEvent),
    KeyDown {
        key: KeyCode,
        modifiers: Modifiers,
        repeat: bool,
    },
    KeyUp {
        key: KeyCode,
        modifiers: Modifiers,
    },
    TextInput(String),
    SetTextSelection {
        anchor: u32,
        focus: u32,
    },
    ClipboardWriteCompleted {
        token: ClipboardToken,
        outcome: ClipboardWriteOutcome,
    },
    ClipboardReadText {
        token: ClipboardToken,
        text: String,
    },
    ClipboardReadFailed {
        token: ClipboardToken,
        error: ClipboardAccessError,
    },
    ShareSheetCompleted {
        token: ShareSheetToken,
        outcome: ShareSheetOutcome,
    },
    PrimarySelectionText {
        token: ClipboardToken,
        text: String,
    },
    PrimarySelectionTextUnavailable {
        token: ClipboardToken,
    },
    FileDialogSelection(FileDialogSelection),
    FileDialogData(FileDialogDataEvent),
    FileDialogCanceled,
    IncomingOpenRequest {
        token: IncomingOpenToken,
        items: Vec<IncomingOpenItem>,
    },
    IncomingOpenData(IncomingOpenDataEvent),
    IncomingOpenUnavailable {
        token: IncomingOpenToken,
    },
    ImageRegistered {
        token: ImageUploadToken,
        image: ImageId,
        width: u32,
        height: u32,
    },
    ImageRegisterFailed {
        token: ImageUploadToken,
        message: String,
    },
    ImageUpdateApplied {
        token: ImageUpdateToken,
        image: ImageId,
    },
    ImageUpdateDropped {
        token: ImageUpdateToken,
        image: ImageId,
        reason: ImageUpdateDropReason,
    },
    WindowCloseRequested,
    WindowFocusChanged(bool),
    WindowScaleFactorChanged(f32),
    WindowMoved(WindowLogicalPosition),
    WindowResized {
        width: Px,
        height: Px,
    },
}

Variants

Pointer(PointerEvent)

PointerCancel(PointerCancelEvent)

Timer

Fields

token: TimerToken

Ime(ImeEvent)

ExternalDrag(ExternalDragEvent)

ExternalDropData(ExternalDropDataEvent)

InternalDrag(InternalDragEvent)

KeyDown

Fields

key: KeyCode

modifiers: Modifiers

repeat: bool

KeyUp

Fields

key: KeyCode

modifiers: Modifiers

TextInput(String)

SetTextSelection

Sets the current selection (or caret when anchor == focus) in UTF-8 byte offsets within the focused widget’s text buffer (ADR 0071).

This event is primarily intended for accessibility and automation backends.

Fields

anchor: u32

focus: u32

ClipboardWriteCompleted

Clipboard write request completed.

Fields

token: ClipboardToken

outcome: ClipboardWriteOutcome

ClipboardReadText

Clipboard text payload delivered to the focused widget (typically as the result of a paste request).

Fields

token: ClipboardToken

text: String

ClipboardReadFailed

Clipboard read completed without a text payload (clipboard empty/unavailable/error).

Fields

token: ClipboardToken

error: ClipboardAccessError

ShareSheetCompleted

Share sheet request completed.

Fields

token: ShareSheetToken

outcome: ShareSheetOutcome

PrimarySelectionText

Linux primary selection text payload delivered to the focused widget.

This typically originates from middle-click paste when primary selection is enabled.

Fields

token: ClipboardToken

text: String

PrimarySelectionTextUnavailable

Primary selection read completed without a text payload (unavailable/empty/error).

Fields

token: ClipboardToken

FileDialogSelection(FileDialogSelection)

File dialog selection metadata (token + names). Bytes must be requested via effects.

FileDialogData(FileDialogDataEvent)

File dialog data payload, typically produced by Effect::FileDialogReadAll.

FileDialogCanceled

A file dialog request completed without a selection (user canceled).

IncomingOpenRequest

Incoming-open request originating from the OS (open-in / share-target).

Apps must treat the token as ephemeral; privileged platform references remain runner-owned.

Fields

token: IncomingOpenToken

items: Vec<IncomingOpenItem>

IncomingOpenData(IncomingOpenDataEvent)

Incoming-open data payload, typically produced by Effect::IncomingOpenReadAll.

IncomingOpenUnavailable

Incoming-open token became unavailable (denied/revoked/expired).

Fields

token: IncomingOpenToken

ImageRegistered

Image resource registration completed and produced an ImageId.

Fields

token: ImageUploadToken

image: ImageId

width: u32

height: u32

ImageRegisterFailed

Image resource registration failed (e.g. invalid bytes, backend error).

Fields

token: ImageUploadToken

message: String

ImageUpdateApplied

Optional acknowledgement that a streaming image update was applied.

This is intended for debugging/telemetry surfaces and must be capability-gated by the runner to avoid flooding the event loop during video playback (ADR 0124).

Fields

token: ImageUpdateToken

image: ImageId

ImageUpdateDropped

Optional acknowledgement that a streaming image update was dropped.

See ImageUpdateApplied for rationale (ADR 0124).

Fields

token: ImageUpdateToken

image: ImageId

reason: ImageUpdateDropReason

WindowCloseRequested

Window close button / OS close request was triggered.

The runner must not close the window immediately; the app/driver may intercept the request (e.g. unsaved-changes confirmation) and decide whether to emit WindowRequest::Close.

WindowFocusChanged(bool)

Window focus state changed (focused vs blurred).

WindowScaleFactorChanged(f32)

WindowMoved(WindowLogicalPosition)

WindowResized

Fields

width: Px

height: Px

Trait Implementations

impl Clone for Event

fn clone(&self) -> Event

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Event

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

Formats the value using the given formatter.

impl PartialEq for Event

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Event