Struct KeyboardEventDetector

pub struct KeyboardEventDetector<W: Widget, F: Fn(KeyEvent)> {
    pub on_event: F,
    pub child: W,
}

Fields

on_event: F

child: W

Trait Implementations

impl<W: Widget, F: Fn(KeyEvent)> CheapEq for KeyboardEventDetector<W, F>

const CHEAP_TO_EQ: bool = false

This associated type is used to avoid recursive comparisons of the whole widget subtree (if one of the fields is itself a widget).

fn cheap_eq(&self, other: &Self) -> bool

impl<W: Widget, F: Fn(KeyEvent)> ViewWidget for KeyboardEventDetector<W, F>

fn build<'w>(&'w self, _: BuildContext<'w, Self>) -> Self::Widget<'w>

impl<W: Widget, F: Fn(KeyEvent)> Widget for KeyboardEventDetector<W, F>

fn unique_type(&self) -> TypeId

Implementation should return the same unique TypeId for given structure definition, even if that structure contains generic parameters. This is used to preserve state between generic widgets.

fn kind<'frui>(&'frui self) -> WidgetKind<'_>

impl<W: Widget, F: Fn(KeyEvent)> WidgetDerive for KeyboardEventDetector<W, F>

type Widget<'frui> = impl Widget + 'frui where Self: 'frui

Assuming this trait was derived through #[derive(WidgetKind)] this associated type should be derived automatically by the compiler. This requires that TAIT feature is enabled.

impl<W: Widget, F: Fn(KeyEvent)> WidgetState for KeyboardEventDetector<W, F>

type State = Option<CallbackKey>

fn create_state<'a>(&'a self) -> Self::State

fn mount(&self, ctx: BuildContext<'_, Self>)

Called when the widget is mounted into the tree (before build).

fn unmount(&self, ctx: BuildContext<'_, Self>)

Called when the widget is unmounted from the tree. At this point given widget may be dropped or mounted again with its configuration updated.