ratatui_kit/hooks/
use_on_drop.rs

1use crate::Hook;
2
3mod private {
4    pub trait Sealed {}
5    impl Sealed for crate::Hooks<'_, '_> {}
6}
7
8/// 在组件销毁时执行回调。注意不要在回调中使用State。
9pub trait UseOnDrop: private::Sealed {
10    fn use_on_drop<F>(&mut self, f: F)
11    where
12        F: FnMut() + Send + 'static;
13}
14
15#[derive(Default)]
16struct UseOnDropImpl {
17    callback: Option<Box<dyn FnMut() + Send>>,
18}
19
20impl Hook for UseOnDropImpl {
21    fn on_drop(&mut self) {
22        if let Some(mut callback) = self.callback.take() {
23            callback();
24        }
25    }
26}
27
28impl UseOnDrop for crate::Hooks<'_, '_> {
29    /// 在组件销毁时执行回调。注意不要在回调中使用State。
30    fn use_on_drop<F>(&mut self, f: F)
31    where
32        F: FnMut() + Send + 'static,
33    {
34        let hook = self.use_hook(UseOnDropImpl::default);
35        hook.callback.replace(Box::new(f));
36    }
37}
ratatui_kit/hooks/use_on_drop.rs

ratatui_kit/hooks/
use_on_drop.rs
