How do I create a window centered on the primary monitor?

[mamekoro]

I'm trying to create a Linux desktop app and center its window on the primary monitor. (Other platforms need not be considered.)

I know that WindowBuilder has a with_position function, but I need to get the primary monitor's size first to center the window. How can I do that?

Here's what my code looks like:

use dioxus::{
    desktop::{
        wry::dpi::{PhysicalPosition, PhysicalSize},
        Config, WindowBuilder,
    },
    prelude::*,
};

const WINDOW_INNER_SIZE: PhysicalSize<u32> = PhysicalSize::new(800, 600);

fn main() {
    dioxus::LaunchBuilder::desktop()
        .with_cfg(
            Config::new().with_window(
                WindowBuilder::new()
                    .with_position({
                        let primary_monitor_size: PhysicalSize<u32> = todo!();
                        PhysicalPosition::new(
                            (primary_monitor_size.width - WINDOW_INNER_SIZE.width) / 2,
                            (primary_monitor_size.height - WINDOW_INNER_SIZE.height) / 2,
                        )
                    })
                    .with_inner_size(WINDOW_INNER_SIZE),
            ),
        )
        .launch(App);
}

#[component]
fn App() -> Element {
    rsx! { "hello" }
}

[DogeDark]

I found that what works for me is a run-once effect that gets the monitor size since it doesn't seem easily accessible in main.

Something like:

const WINDOW_INNER_SIZE: PhysicalSize<u32> = PhysicalSize::new(800, 600);

#[component]
pub fn App() -> Element {
    use_effect(move || {
        let window = &window().window;

        // There should be a method on `window` to list the monitors instead of using the current one if desired.
        let monitor = window.current_monitor().unwrap();

        let size = monitor.size();
        let new_position = PhysicalPosition::new(
            (size.width - WINDOW_INNER_SIZE.width) / 2, 
            (size.height - WINDOW_INNER_SIZE.height) / 2,
        );

        window.set_outer_position(new_position);
    });
}

[mamekoro]

Thank you so much!