Struct SharedSignal

pub struct SharedSignal<T: ?Sized>(/* private fields */);

A Signal that can be cloned.

Implementations

impl<T> SharedSignal<T>

pub fn new(value: T) -> Self

impl<T: ?Sized> SharedSignal<T>

pub fn new_arc(value: Rc<T>) -> Self

pub fn downgrade(&self) -> WeakSignal<T>

Methods from Deref<Target = Signal<T>>

pub fn set(&self, value: T)

Sets the value of self.

pub fn set_silent(&self, value: T)

Sets the value of self without triggering the callbacks.

pub fn set_arc(&self, value: Rc<T>)

Sets the value of self to an [Shared].

pub fn set_arc_silent(&self, value: Rc<T>)

Sets the value of self to an [Shared] without triggering the callbacks.

pub fn emit(&self)

Emits the CallbackEmitter for this Signal.

pub fn modify(&self) -> Modify<'_, T>

Returns a Modify that can be used to modify the value of the Signal. When the Modify is dropped, the Signal will be updated.

Methods from Deref<Target = ReadSignal<T>>

pub fn emitter(&self) -> &CallbackEmitter

Gets the CallbackEmitter for this ReadSignal.

pub fn track(&self)

Tracks self in the currently running effect.

pub fn get(&self) -> Rc<T>

Gets the current value of self.

This will track self in the currently running effect.

pub fn get_untracked(&self) -> Rc<T>

Gets the current value of self without tracking it.

pub fn cloned(&self) -> T

Returns a clone of the current value of self.

This will track self in the currently running effect.

pub fn cloned_untracked(&self) -> T

Returns a clone of the current value of self without tracking it.

pub fn copied(&self) -> T

Returns a copy to the current value of self.

pub fn copied_untracked(&self) -> T

Returns a copy to the current value of self.

Trait Implementations

impl<'a, T: Clone + PartialEq + SendSync + 'static> Bindable<'a> for SharedSignal<T>

type Item = T

fn bind(&mut self, cx: Scope<'a>, signal: &'a Signal<Self::Item>)

impl<T: ?Sized> Clone for SharedSignal<T>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug + ?Sized> Debug for SharedSignal<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T: Default> Default for SharedSignal<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T: ?Sized> Deref for SharedSignal<T>

type Target = Signal<T>

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T: Hash + ?Sized> Hash for SharedSignal<T>

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<T: Ord + ?Sized> Ord for SharedSignal<T>

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<T: PartialEq + ?Sized> PartialEq<T> for SharedSignal<T>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: PartialEq + ?Sized> PartialEq for SharedSignal<T>

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T: PartialOrd + ?Sized> PartialOrd<T> for SharedSignal<T>

fn partial_cmp(&self, other: &T) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<T: PartialOrd + ?Sized> PartialOrd for SharedSignal<T>

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<V: View + SendSync> View for SharedSignal<V>

When a view is wrapped in a signal, the view will be redrawn when the signal changes.

type State = (Callback<'static>, <V as View>::State)

The state of the view.

fn build(&self) -> Self::State

Builds the state of the view.

fn style(&self) -> Style

Returns the style of the view.

fn event( &self, (_, state): &mut Self::State, cx: &mut EventContext<'_>, event: &Event, )

Handles an event.

fn layout( &self, (_, state): &mut Self::State, cx: &mut LayoutContext<'_>, bc: BoxConstraints, ) -> Vec2

Handle layout and returns the size of the view.

fn draw(&self, (callback, state): &mut Self::State, cx: &mut DrawContext<'_>)

Draws the view.

impl<T: Eq + ?Sized> Eq for SharedSignal<T>