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//! use_toggle hook for boolean state management
//!
//! Provides a simple way to manage boolean state with toggle functionality.
//!
//! # Example
//!
//! ```rust,ignore
//! use rnk::prelude::*;
//!
//! fn app() -> Element {
//! let (is_visible, toggle) = use_toggle(false);
//!
//! use_input(move |input, _| {
//! if input == " " {
//! toggle.toggle();
//! }
//! });
//!
//! if is_visible {
//! Text::new("Visible!").into_element()
//! } else {
//! Text::new("Hidden").into_element()
//! }
//! }
//! ```
use crate::hooks::use_signal::{Signal, use_signal};
/// Handle for toggling boolean state
#[derive(Clone)]
pub struct ToggleHandle {
signal: Signal<bool>,
}
impl ToggleHandle {
/// Toggle the value
pub fn toggle(&self) {
self.signal.update(|v| *v = !*v);
}
/// Set to true
pub fn set_true(&self) {
self.signal.set(true);
}
/// Set to false
pub fn set_false(&self) {
self.signal.set(false);
}
/// Set to a specific value
pub fn set(&self, value: bool) {
self.signal.set(value);
}
/// Get the current value
pub fn get(&self) -> bool {
self.signal.get()
}
}
/// Create a toggleable boolean state
///
/// Returns a tuple of (current_value, toggle_handle)
pub fn use_toggle(initial: bool) -> (bool, ToggleHandle) {
let signal = use_signal(|| initial);
let handle = ToggleHandle {
signal: signal.clone(),
};
(signal.get(), handle)
}
/// Create a toggle that starts as false
pub fn use_toggle_off() -> (bool, ToggleHandle) {
use_toggle(false)
}
/// Create a toggle that starts as true
pub fn use_toggle_on() -> (bool, ToggleHandle) {
use_toggle(true)
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_use_toggle_compiles() {
fn _test() {
let (value, handle) = use_toggle(false);
let _ = value;
handle.toggle();
handle.set_true();
handle.set_false();
}
}
}