Enum WindowEvent

#[non_exhaustive]
pub enum WindowEvent {
    Resized {
        w: u32,
        h: u32,
    },
    ScaleFactorChanged {
        scale_factor: f32,
    },
    Focused {
        focused: bool,
    },
    CloseRequested,
    RedrawRequested,
}

Window-level lifecycle and surface events.

Possible notifications cover resize, scale factor, focus, close requests, and redraw requests.

Examples

use ailloli_ui_core::event::WindowEvent;
let event = WindowEvent::Resized { w: 800, h: 600 };
assert!(matches!(event, WindowEvent::Resized { w: 800, h: 600 }));

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.

Resized

Inner size changed (physical pixels).

Fields

w: u32

Inner surface width in physical pixels; zero is valid while minimized.

h: u32

Inner surface height in physical pixels; zero is valid while minimized.

ScaleFactorChanged

HiDPI scale factor changed.

Fields

scale_factor: f32

Provider device-pixel ratio; adapters should supply a finite positive value.

Focused

Window gained or lost focus.

Fields

focused: bool

true when the native window gained focus and false when it lost focus.

CloseRequested

User or chrome requested close.

RedrawRequested

Compositor or app requested a redraw.

Trait Implementations

impl Clone for WindowEvent

fn clone(&self) -> WindowEvent

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WindowEvent

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

Formats the value using the given formatter.

impl PartialEq for WindowEvent

fn eq(&self, other: &WindowEvent) -> 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 WindowEvent