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AccessWinitWindow

aeth_window

Trait AccessWinitWindow 

Source 
pub trait AccessWinitWindow {
    // Required methods
    fn map_winit_window<F, T>(&self, f: F) -> T
       where F: FnOnce(&Box<dyn WinitWindow>) -> T;
    fn map_winit_window_mut<F, T>(&mut self, f: F) -> T
       where F: FnOnce(&mut Box<dyn WinitWindow>) -> T;
}
Expand description

Trait to access to its internally owned winit::window::Window object.

This trait is made so that the user of this package can write trait AccessWinitWindowExt : AccessWinitWindow plus impl<T> AccessWinitWindowExt for T where T: AccessWinitWindow {} to extend the behaviour of our Window object.

Please notice not only the holder of Window but also the aeth-window subsystem will need to access the underlying winit::window::Window object. The holder is always an async task, and allowing it to hold a std::cell::Ref to the winit::window::Window can cause the window subsystem to fail when they also borrow an instance of it. So we enforce short-lived reference access here by forcing the operation on winit::window::Window to be completed within a function.

Required Methods§

Source

fn map_winit_window<F, T>(&self, f: F) -> T
where F: FnOnce(&Box<dyn WinitWindow>) -> T,

Manipulate the underlying winit::window::Window in an immutable manner.

Source

fn map_winit_window_mut<F, T>(&mut self, f: F) -> T
where F: FnOnce(&mut Box<dyn WinitWindow>) -> T,

Manipulate the underlying winit::window::Window in a mutable manner.

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§