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: #138

[chaozwn]

I have pull something new for this issue, the EventType will return position when mouse button pressed or released. see here: #138
Why did you close your pr?

[qzd1989]

I have pull something new for this issue, the EventType will return position when mouse button pressed or released. see here: #138
Why did you close your pr?

It's not necessary to implement this feature.

[chaozwn]

I have pull something new for this issue, the EventType will return position when mouse button pressed or released. see here: #138
Why did you close your pr?

It's not necessary to implement this feature.

So is there a way to get x and y when you press the mouse down.

[qzd1989]

I have pull something new for this issue, the EventType will return position when mouse button pressed or released. see here: #138
Why did you close your pr?

It's not necessary to implement this feature.

So is there a way to get x and y when you press the mouse down.

just get the current mouse position.

[HuakunShen]

I have pull something new for this issue, the EventType will return position when mouse button pressed or released. see here: #138
Why did you close your pr?

It's not necessary to implement this feature.

So is there a way to get x and y when you press the mouse down.

just get the current mouse position.

@qzd1989 what do you mean? I didn't get it. There is no event to report mouse position when mouse is down.

[qzd1989]

I have pull something new for this issue, the EventType will return position when mouse button pressed or released. see here: #138
Why did you close your pr?

It's not necessary to implement this feature.

So is there a way to get x and y when you press the mouse down.

just get the current mouse position.

@qzd1989 what do you mean? I didn't get it. There is no event to report mouse position when mouse is down.
"get_current_mouse_location" this fn, you can read the source code and search it. also there are some third library crates can get the current location of mouse. so it's to necessary to implement it. and you can use engino instead of rdev too.

[HuakunShen]

I made a PR #150 fixing the issue for MacOS.

When mouse is pressed and moved, mouse move event is still emitted.