iris
23376aef25
A doc comment that describes another function goes stale when that function changes, and nobody editing it looks here.
54 lines
1.3 KiB
Rust
54 lines
1.3 KiB
Rust
mod ctx;
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mod manager;
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mod rsc;
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pub use ctx::*;
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pub use manager::*;
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pub use rsc::*;
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pub trait Event: Sized + 'static + Clone {
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type Data<'a>: Clone = ();
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type State: Default = ();
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/// State the whole event type keeps, rather than one copy per widget.
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type Global: Default = ();
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#[allow(unused_variables)]
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fn should_run<'a>(&self, data: &Self::Data<'a>) -> Option<Self::Data<'a>> {
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Some(data.clone())
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}
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/// Whether having run on this data uses up whatever triggered it, so
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/// nothing further should see it.
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#[allow(unused_variables)]
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fn consumes(&self, data: &Self::Data<'_>) -> bool {
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false
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}
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}
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pub trait EventLike {
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type Event: Event;
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fn into_event(self) -> Self::Event;
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}
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impl<E: Event> EventLike for E {
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type Event = Self;
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fn into_event(self) -> Self::Event {
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self
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}
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}
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pub trait EventFn<Rsc: HasEvents, Data>: Fn(EventCtx<Rsc, Data>, &mut Rsc) + 'static {}
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impl<Rsc: HasEvents, F: Fn(EventCtx<Rsc, Data>, &mut Rsc) + 'static, Data> EventFn<Rsc, Data>
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for F
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{
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}
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pub trait WidgetEventFn<Rsc: HasEvents, Data, W: ?Sized>:
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Fn(EventIdCtx<Rsc, Data, W>, &mut Rsc) + 'static
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{
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}
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impl<Rsc: HasEvents, F: Fn(EventIdCtx<Rsc, Data, W>, &mut Rsc) + 'static, Data, W: ?Sized>
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WidgetEventFn<Rsc, Data, W> for F
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{
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}
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