Echo Writes Code

application.rs

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use crate::errors::{ Result };

use std::sync::{ LazyLock };

pub trait ApplicationDelegate {
  fn on_ready(&mut self) {
  }
}

pub struct Application;

impl Application {
  fn new() -> Application {
    Application {}
  }

  pub fn instance() -> &'static Application {
    &APPLICATION
  }

  pub fn run<D: ApplicationDelegate + 'static>(&self, delegate: D) -> Result<()> {
    #[cfg(target_os = "macos")]
    crate::appkit::application::run(delegate)?;

    #[cfg(target_os = "windows")]
    crate::win32::application::run(delegate)?;

    #[cfg(all(target_os = "unknown", target_family = "wasm"))]
    crate::web::application::run(delegate)?;

    Ok(())
  }

  pub fn quit(&self) {
    #[cfg(target_os = "macos")]
    crate::appkit::application::quit();
  }
}

static APPLICATION: LazyLock<Application> = LazyLock::new(Application::new);