Struct scl_gui_widgets::widgets::PressKey

pub struct PressKey<T> { /* private fields */ }

一个控制器，当子组件被聚焦且按下指定按键时触发回调

Implementations

impl<T> PressKey<T>

pub fn new( key_code: Code, action: impl Fn(&mut EventCtx<'_, '_>, &mut T, &Env) + 'static ) -> Self

根据需要按下的按键和需要触发的回调函数创建此控制器

Trait Implementations

impl<T, W: Widget<T>> Controller<T, W> for PressKey<T>

fn event( &mut self, child: &mut W, ctx: &mut EventCtx<'_, '_>, event: &Event, data: &mut T, env: &Env )

Analogous to [Widget::event].

fn lifecycle( &mut self, child: &mut W, ctx: &mut LifeCycleCtx<'_, '_>, event: &LifeCycle, data: &T, env: &Env )

Analogous to [Widget::lifecycle].

fn update( &mut self, child: &mut W, ctx: &mut UpdateCtx<'_, '_>, old_data: &T, data: &T, env: &Env )

Analogous to [Widget::update].