Struct Trigger

pub struct Trigger { /* private fields */ }

A generic trigger handler for evaluating conditions based on stored arguments. Trigger allows you to define a condition as a function, associate it with an argument, and check whether the condition is met.

Usage

Trigger is use for creating a Selector object.

Example

use feather_tui as tui;
 
tui::tui_trg_new_trigger_func!(trigger, arg, {
    arg.downcast_ref::<u32>().unwrap() == 5
});
 
let mut trig = tui::trg::Trigger::new(trigger, 5u32);

trig.check(); // Condition is met return True
trig.update_arg(6);
trig.check(); // Condition no longer met return False

Implementations

impl Trigger

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

where T: 'static,

pub fn check(&mut self) -> bool

pub fn update_arg<T>(&mut self, arg: T)

where T: 'static,