[−][src]Struct reactive_state::Callback
A wrapper for a callback which is notified of changes to
Store State
, and Event
s produced by the store.
Example
The following example makes use of the AsListener
trait implementation for Callback
which allows it to be used in
Store::subscribe(). The
AsListener trait creates a weak reference to this
callback in a Listener, which is given to the
Store. When the callback is dropped, the listener will be
removed from the store.
use reactive_state::Callback; let callback = Callback::new(|_state, _event| { println!("Callback invoked"); }); store.subscribe(&callback);
Optional Features
If the "yew"
crate feature is enabled, a number of From
implementations are available to convert yew
callbacks into
this:
From<yew::Callback<Rc<State>>>
From<yew::Callback<(Rc<State>, Event)>>
From<yew::Callback<()>>
Implementations
impl<State, Event> Callback<State, Event>
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pub fn new<C: Fn(Rc<State>, Event) + 'static>(closure: C) -> Self
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pub fn emit(&self, state: Rc<State>, event: Event)
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Trait Implementations
impl<State, Event, '_> AsListener<State, Event> for &'_ Callback<State, Event>
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fn as_listener(&self) -> Listener<State, Event>
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impl<State: Clone, Event: Clone> Clone for Callback<State, Event>
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impl<C, State, Event> From<C> for Callback<State, Event> where
C: Fn(Rc<State>, Event) + 'static,
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C: Fn(Rc<State>, Event) + 'static,
impl<State, Event> From<Callback<()>> for Callback<State, Event> where
State: 'static,
Event: 'static,
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State: 'static,
Event: 'static,
impl<State, Event> From<Callback<(Rc<State>, Event)>> for Callback<State, Event> where
State: 'static,
Event: 'static,
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State: 'static,
Event: 'static,
impl<State, Event> From<Callback<Rc<State>>> for Callback<State, Event> where
State: 'static,
Event: 'static,
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State: 'static,
Event: 'static,
Auto Trait Implementations
impl<State, Event> !RefUnwindSafe for Callback<State, Event>
impl<State, Event> !Send for Callback<State, Event>
impl<State, Event> !Sync for Callback<State, Event>
impl<State, Event> Unpin for Callback<State, Event>
impl<State, Event> !UnwindSafe for Callback<State, Event>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<T> Any for T where
T: Any,
T: Any,
impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> CloneAny for T where
T: Clone + Any,
T: Clone + Any,
impl<T> From<T> for T
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,