Files
iris/src/event.rs

67 lines
2.0 KiB
Rust

use crate::prelude::*;
use iris_macro::widget_trait;
pub mod eventable {
use super::*;
widget_trait! {
pub trait Eventable;
fn on<E: EventAlias, Ctx: 'static>(
self,
event: E,
f: impl for<'a> EventIdFn<Ctx, <E::Event as Event>::Data<'a>, WL::Widget>,
) -> impl WidgetIdFn<WL::Widget> {
move |ui| {
let id = self.add(ui);
Events::<E::Event, Ctx>::register(id.weak(), event.into_event(), f);
id
}
}
}
}
// TODO: naming in here is a bit weird like eventable
#[macro_export]
macro_rules! event_ctx {
($ty: ty) => {
mod local_event_trait {
use super::*;
#[allow(unused_imports)]
use $crate::prelude::*;
widget_trait! {
#[allow(unused)]
pub trait EventableCtx;
fn on<E: EventAlias>(
self,
event: E,
f: impl for<'a> EventIdFn<$ty, <E::Event as Event>::Data<'a>, WL::Widget>,
) -> impl WidgetIdFn<WL::Widget> {
eventable::Eventable::on(self, event, f)
}
}
use std::marker::Sized;
#[allow(unused)]
pub trait EventableCtxRef<W: Widget + ?Sized> {
fn on<E: EventAlias>(
self,
event: E,
f: impl for<'a> EventIdFn<$ty, <E::Event as Event>::Data<'a>, W>,
);
}
impl<W: Widget + ?Sized> EventableCtxRef<W> for WidgetRef<W> {
fn on<E: EventAlias>(
self,
event: E,
f: impl for<'a> EventIdFn<$ty, <E::Event as Event>::Data<'a>, W>,
) {
Events::<E::Event, $ty>::register(self, event.into_event(), f);
}
}
}
use local_event_trait::*;
};
}
pub use event_ctx;