No mouse move event emitted while mouse is down

[HuakunShen]

When left mouse button is down, mouse move events are no longer detected.

How can this be solved?

I am trying to detect mouse movements while holding and moving a file.

[qzd1989]

you are right, I only can get the position when button pressed, but I can't get the position if mouse doesn't move after button released.

use rdev::{listen, Button, Event, EventType};
use std::sync::{Arc, Mutex};
use std::thread::{self, spawn};
use std::time::Duration;

fn main() {
    let mouse_state = Arc::new(Mutex::new(MouseState::new()));
    let mouse_state_clone = Arc::clone(&mouse_state);
    spawn(|| {
        if let Err(error) = listen(move |event| callback(event, &mouse_state_clone)) {
            println!("Error: {:?}", error)
        }
    });
    thread::sleep(Duration::from_secs(3600));
}

#[derive(Debug)]
pub struct MouseState {
    pub last_position: Option<(f64, f64)>,
}

impl MouseState {
    fn new() -> Self {
        MouseState {
            last_position: None,
        }
    }
}
fn callback(event: Event, mouse_state: &Arc<Mutex<MouseState>>) {
    match event.event_type {
        EventType::ButtonPress(button) => {
            let mouse_state = mouse_state.lock().unwrap();
            if let Some(last_position) = mouse_state.last_position {
                if button == Button::Left {
                    println!("position is :{}, {}", last_position.0, last_position.1);
                }
            }
        }
        EventType::ButtonRelease(button) => {
            if button == Button::Left {
                //I can't get the position if mouse doesn't move after button released.
            }
        }
        EventType::MouseMove { x, y } => {
            let mut mouse_state = mouse_state.lock().unwrap();
            mouse_state.last_position = Some((x, y));
        }
        _ => {}
    }
}

[qzd1989]

I have pull something new for this issue, the EventType will return position when mouse button pressed or released. see here: https://github.com/Narsil/rdev/pull/138