ratflow 0.3.0

A minimalistic framework for building TUI applications using a reactive architecture.
Documentation 
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use crossterm::event::{Event, KeyEvent, MouseEvent};
use std::rc::Rc;
use sycamore_reactive::{create_signal, use_context, use_current_scope};
use tokio::sync::broadcast;
use tokio::task::spawn_local;

#[derive(Debug, Clone)]
pub(crate) struct Events(pub Rc<broadcast::Receiver<Event>>);

#[inline]
#[track_caller]
pub fn on_event(mut fun: impl FnMut(Event) + 'static) {
    let mut rx = use_context::<Events>().0.resubscribe();
    let trigger = create_signal(());
    let scope = use_current_scope();
    spawn_local(async move {
        while let Ok(event) = rx.recv().await {
            if !trigger.is_alive() {
                return;
            } else {
                scope.run_in(|| fun(event));
            }
        }
    });
}

#[inline]
#[track_caller]
pub fn on_key(mut fun: impl FnMut(KeyEvent) + 'static) {
    on_event(move |event| {
        if let Some(key_event) = event.as_key_event() {
            fun(key_event);
        }
    })
}

#[inline]
#[track_caller]
pub fn on_mouse(mut fun: impl FnMut(MouseEvent) + 'static) {
    on_event(move |event| {
        if let Some(mouse_event) = event.as_mouse_event() {
            fun(mouse_event);
        }
    })
}

#[inline]
#[track_caller]
pub fn on_resize(mut fun: impl FnMut(u16, u16) + 'static) {
    on_event(move |event| {
        if let Some((x, y)) = event.as_resize_event() {
            fun(x, y);
        }
    })
}

#[inline]
#[track_caller]
pub fn on_key_press(mut fun: impl FnMut(KeyEvent) + 'static) {
    on_event(move |event| {
        if let Some(key_event) = event.as_key_press_event() {
            fun(key_event);
        }
    })
}