[英]Remove listener on click in tauri_hotkey
添加一个键盘键侦听器,当按下该键时,我想删除该侦听器,我使用这个板条箱
添加监听器工作正常
use tauri_hotkey;
fn main() {
let mut hotkey = tauri_hotkey::HotkeyManager::new();
let key = tauri_hotkey::Hotkey {
keys: vec![tauri_hotkey::Key::A],
modifiers: vec![],
};
hotkey
.register(key, || {
println!("You pressed A",);
})
.unwrap();
loop {} // infinate loop for prevent main from existing
}
单击键时删除侦听器
hotkey
.register(key, || {
hotkey.unregister(&key).unwrap();
})
.unwrap();
它给出了一个编译错误说
cannot borrow `hotkey` as mutable more than once at a time
second mutable borrow occurs hererustc(E0499)
main.rs(29, 5): second mutable borrow occurs here
main.rs(30, 24): first mutable borrow occurs here
main.rs(32, 14): first borrow occurs due to use of `hotkey`
有没有办法解决这个问题,访问闭包内的热键?
注册签名甚至不允许自己更改“热键”。 首先是“&mut self”约束,其次是应该是“静态”的回调
pub fn register<F>(&mut self, hotkey: Hotkey, callback: F) -> Result<()>
where
F: 'static + FnMut() + Send
一种方法可能是这样的
use std::sync::{Arc, Mutex};
use tauri_hotkey;
fn main() {
let mut hotkey = tauri_hotkey::HotkeyManager::new();
let key = tauri_hotkey::Hotkey {
keys: vec![tauri_hotkey::Key::A],
modifiers: vec![],
};
let is_pressed = Arc::new(Mutex::new(false));
let is_p = Arc::clone(&is_pressed);
hotkey
.register(key.clone(), move || {
let mut is_p = is_p.lock().unwrap();
*is_p = true;
})
.unwrap();
loop {
let pressed = Arc::clone(&is_pressed);
let mut pressed = pressed.lock().unwrap();
if *pressed {
hotkey.unregister(&key).unwrap();
*pressed = false;
}
} // infinate loop for prevent main from existing
}
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