21 lines
571 B
Rust
21 lines
571 B
Rust
use crate::{Ui, WidgetIdFn, WidgetLike, WidgetRef};
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pub trait WidgetAttr<W: ?Sized> {
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type Input;
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fn run(ui: &mut Ui, id: WidgetRef<W>, input: Self::Input);
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}
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pub trait Attrable<W: ?Sized, Tag> {
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fn attr<A: WidgetAttr<W>>(self, input: A::Input) -> impl WidgetIdFn<W>;
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}
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impl<WL: WidgetLike<Tag>, Tag> Attrable<WL::Widget, Tag> for WL {
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fn attr<A: WidgetAttr<WL::Widget>>(self, input: A::Input) -> impl WidgetIdFn<WL::Widget> {
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|ui| {
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let id = self.add(ui);
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A::run(ui, id.weak(), input);
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id
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}
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}
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}
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