fn new()

in src/platform_impl/web/web_sys/scaling.rs [28:52]

• 23 lines of code
• 2 McCabe index (conditional complexity)

    fn new<F>(handler: F) -> Rc<RefCell<Self>>
    where
        F: 'static + FnMut(ScaleChangeArgs),
    {
        let current_scale = super::scale_factor();
        let new_self = Rc::new(RefCell::new(Self {
            callback: Box::new(handler),
            mql: None,
            last_scale: current_scale,
        }));

        let weak_self = Rc::downgrade(&new_self);
        let closure = Closure::wrap(Box::new(move |event: MediaQueryListEvent| {
            if let Some(rc_self) = weak_self.upgrade() {
                rc_self.borrow_mut().handler(event);
            }
        }) as Box<dyn FnMut(_)>);

        let mql = Self::create_mql(closure);
        {
            let mut borrowed_self = new_self.borrow_mut();
            borrowed_self.mql = mql;
        }
        new_self
    }