Struct WritableSetter 

pub struct WritableSetter<T: 'static> { /* private fields */ }

A writable value whose updates go through a setter callback.

use freya::prelude::*;

fn app() -> impl IntoElement {
    let mut value = use_state(String::new);
    Input::new(WritableSetter::new(value, move |text| value.set(text)))
}

Implementations

impl<T: 'static> WritableSetter<T>

pub fn new( value: impl IntoReadable<T>, on_change: impl Into<EventHandler<T>>, ) -> Self

The callback may transform or reject updates to the readable value.

pub fn read(&self) -> ReadableRef<T>

Read the value and subscribe to changes.

pub fn peek(&self) -> ReadableRef<T>

Read the value without subscribing to changes.

pub fn set(&mut self, value: T)

Request an update through the setter callback.

pub fn set_if_modified(&mut self, value: T)

where T: PartialEq,

Request an update only if the value differs from the current one.

Trait Implementations

impl<T: 'static> Clone for WritableSetter<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<T: 'static> From<State<T>> for WritableSetter<T>

fn from(value: State<T>) -> Self

Converts to this type from the input type.

impl<T: 'static> From<Writable<T>> for WritableSetter<T>

fn from(value: Writable<T>) -> Self

Converts to this type from the input type.

impl<T: 'static> From<WritableSetter<T>> for Readable<T>

fn from(value: WritableSetter<T>) -> Self

Converts to this type from the input type.

impl<T: 'static> IntoReadable<T> for WritableSetter<T>

fn into_readable(self) -> Readable<T>

impl<T: 'static> PartialEq for WritableSetter<T>

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.