Struct Callback

pub struct Callback { /* private fields */ }

A generic callback handler for executing functions with stored arguments.

Callback allows you to associate a function with an argument and invoke it later.

Usage

Callback is use for creating a Option component. The callback will be trigger when the Option component is selected.

Example

use feather_tui as tui;
 
// Define a callback function that print out the argument that is was given 
tui::tui_cbk_new_callback_func!(callback_func, argument, {
    println!(
        "Callback Argument: {}", 
        argument.downcast_ref::<u32>().unwrap());
});
 
let cb = tui::cbk::Callback::new(callback_func, 42u32);
cb.call(); // Prints: Callback Argument: 42

Implementations

impl Callback

pub fn new<T>(func: fn(&Box<dyn Any>), arg: T) -> Self

where T: 'static,

pub fn call(&self)