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use std::rc::Rc;
use dces::prelude::*;
use super::*;
use crate::{proc_macros::*, widget_base::*};
crate::trigger_event!(
ActivateEvent,
ActivateEventHandler,
ActivateHandler,
on_activate
);
#[derive(Clone, Event)]
pub struct SelectionChangedEvent(pub Entity, pub Vec<usize>);
pub type WindowHandlerFn = dyn Fn(&mut StatesContext, Entity, Vec<usize>) + 'static;
#[derive(IntoHandler)]
pub struct SelectionChangedEventHandler {
pub handler: Rc<WindowHandlerFn>,
}
impl EventHandler for SelectionChangedEventHandler {
fn handle_event(&self, states: &mut StatesContext, event: &EventBox) -> bool {
if let Ok(event) = event.downcast_ref::<SelectionChangedEvent>() {
(self.handler)(states, event.0, event.1.clone());
return true;
}
false
}
fn handles_event(&self, event: &EventBox) -> bool {
event.is_type::<SelectionChangedEvent>()
}
}
pub trait SelectionChangedHandler: Sized + Widget {
fn on_selection_changed<H: Fn(&mut StatesContext, Entity, Vec<usize>) + 'static>(
self,
handler: H,
) -> Self {
self.insert_handler(SelectionChangedEventHandler {
handler: Rc::new(handler),
})
}
}
#[derive(Clone, Event)]
pub struct ChangedEvent(pub Entity, pub String);
pub type ChangedHandlerFn = dyn Fn(&mut StatesContext, Entity, &str) + 'static;
#[derive(IntoHandler)]
pub struct ChangedEventHandler {
pub handler: Rc<ChangedHandlerFn>,
}
impl EventHandler for ChangedEventHandler {
fn handle_event(&self, states: &mut StatesContext, event: &EventBox) -> bool {
if let Ok(event) = event.downcast_ref::<ChangedEvent>() {
(self.handler)(states, event.0, event.1.as_str());
return true;
}
false
}
fn handles_event(&self, event: &EventBox) -> bool {
event.is_type::<ChangedEvent>()
}
}
pub trait ChangedHandler: Sized + Widget {
fn on_changed<H: Fn(&mut StatesContext, Entity, &str) + 'static>(self, handler: H) -> Self {
self.insert_handler(ChangedEventHandler {
handler: Rc::new(handler),
})
}
}