euv_ui/component/switch/view/
impl.rs

1use super::*;
2
3impl EuvSwitchState {
4    /// Creates a state handle for the given checked signal.
5    ///
6    /// The handle is a thin wrapper: it never owns the signal, it only
7    /// gives the view a place to hang [`Self::toggle`] and
8    /// [`Self::on_toggle`] without threading bare signals around.
9    ///
10    /// # Arguments
11    ///
12    /// - `Signal<bool>` - The checked-state signal to wrap.
13    ///
14    /// # Returns
15    ///
16    /// - `EuvSwitchState` - The state handle.
17    pub fn new(checked: Signal<bool>) -> Self {
18        Self { checked }
19    }
20
21    /// Flips the checked state of the switch.
22    ///
23    /// The click handler is a no-op while the switch is disabled, so a
24    /// disabled switch can never be flipped by a stray click.
25    pub fn toggle(&self) {
26        let current: bool = self.get_checked().get();
27        self.get_checked().set(!current);
28    }
29
30    /// Builds a click handler that toggles the switch.
31    ///
32    /// # Arguments
33    ///
34    /// - `Signal<bool>` - The disabled signal consulted on every click.
35    ///
36    /// # Returns
37    ///
38    /// - `Option<Rc<dyn Fn(Event)>>` - A click handler toggling the
39    ///   checked signal, or ignoring the event while disabled.
40    pub fn on_toggle(&self, disabled: Signal<bool>) -> Option<Rc<dyn Fn(Event)>> {
41        let state: EuvSwitchState = *self;
42        Some(Rc::new(move |_: Event| {
43            if disabled.get() {
44                return;
45            }
46            state.toggle();
47        }))
48    }
49}
euv_ui/component/switch/view/impl.rs

euv_ui/component/switch/view/
impl.rs
