ElementsMaybeSignal

leptos_use::core

Struct ElementsMaybeSignal 

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pub struct ElementsMaybeSignal<T: 'static> { /* private fields */ }
Expand description

Used as an argument type to make it easily possible to pass either

  • a web_sys element that implements E (for example EventTarget or Element),
  • an Option<T> where T is the web_sys element,
  • a Signal<T> where T is the web_sys element,
  • a Signal<Option<T>> where T is the web_sys element,
  • a NodeRef

into a function. Used for example in crate::use_event_listener.

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impl<T> Clone for ElementsMaybeSignal<T>

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fn clone(&self) -> Self

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T> Default for ElementsMaybeSignal<T>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<T> DefinedAt for ElementsMaybeSignal<T>

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fn defined_at(&self) -> Option<&'static Location<'static>>

Returns the location at which the signal was defined. This is usually simply None in release mode.
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impl<T> With for ElementsMaybeSignal<T>

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type Value = Vec<Option<T>>

The type of the value contained in the signal.
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fn try_with<O>(&self, f: impl FnOnce(&Vec<Option<T>>) -> O) -> Option<O>

Subscribes to the signal, applies the closure to the value, and returns the result, or None if the signal has already been disposed.
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fn with<U>(&self, fun: impl FnOnce(&Self::Value) -> U) -> U

Subscribes to the signal, applies the closure to the value, and returns the result. Read more
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impl<T> WithUntracked for ElementsMaybeSignal<T>

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type Value = Vec<Option<T>>

The type of the value contained in the signal.
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fn try_with_untracked<O>( &self, f: impl FnOnce(&Vec<Option<T>>) -> O, ) -> Option<O>

Applies the closure to the value, and returns the result, or None if the signal has already been disposed.
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fn with_untracked<U>(&self, fun: impl FnOnce(&Self::Value) -> U) -> U

Applies the closure to the value, and returns the result. Read more
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impl<T> Copy for ElementsMaybeSignal<T>

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<E, T, Request, Encoding> FromReq<Patch<Encoding>, Request, E> for T
where Request: Req<E> + Send + 'static, Encoding: Decodes<T>, E: FromServerFnError,

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async fn from_req(req: Request) -> Result<T, E>

Attempts to deserialize the arguments from a request.
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impl<E, T, Request, Encoding> FromReq<Post<Encoding>, Request, E> for T
where Request: Req<E> + Send + 'static, Encoding: Decodes<T>, E: FromServerFnError,

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async fn from_req(req: Request) -> Result<T, E>

Attempts to deserialize the arguments from a request.
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impl<E, T, Request, Encoding> FromReq<Put<Encoding>, Request, E> for T
where Request: Req<E> + Send + 'static, Encoding: Decodes<T>, E: FromServerFnError,

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async fn from_req(req: Request) -> Result<T, E>

Attempts to deserialize the arguments from a request.
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impl<E, Encoding, Response, T> FromRes<Patch<Encoding>, Response, E> for T
where Response: ClientRes<E> + Send, Encoding: Decodes<T>, E: FromServerFnError,

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async fn from_res(res: Response) -> Result<T, E>

Attempts to deserialize the outputs from a response.
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impl<E, Encoding, Response, T> FromRes<Post<Encoding>, Response, E> for T
where Response: ClientRes<E> + Send, Encoding: Decodes<T>, E: FromServerFnError,

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async fn from_res(res: Response) -> Result<T, E>

Attempts to deserialize the outputs from a response.
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impl<E, Encoding, Response, T> FromRes<Put<Encoding>, Response, E> for T
where Response: ClientRes<E> + Send, Encoding: Decodes<T>, E: FromServerFnError,

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async fn from_res(res: Response) -> Result<T, E>

Attempts to deserialize the outputs from a response.
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<El, T, Marker> IntoElementMaybeSignal<T, Marker> for El
where El: IntoElementMaybeSignalType<T, Marker>,

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fn into_element_maybe_signal(self) -> ElementMaybeSignal<T>

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impl<T, Js> IntoElementMaybeSignalType<T, Element> for Js
where T: From<Js> + Clone,

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fn into_element_maybe_signal_type(self) -> ElementMaybeSignalType<T>

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impl<T, V, E> IntoElementMaybeSignalType<T, SignalMarker> for V
where V: Get<Value = E> + 'static, T: From<E> + Clone,

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fn into_element_maybe_signal_type(self) -> ElementMaybeSignalType<T>

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impl<El, T, Marker> IntoElementsMaybeSignal<T, Marker> for El
where El: IntoElementsMaybeSignalType<T, Marker>,

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fn into_elements_maybe_signal(self) -> ElementsMaybeSignal<T>

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impl<T, Js> IntoElementsMaybeSignalType<T, Element> for Js
where T: From<Js> + Clone,

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fn into_elements_maybe_signal_type(self) -> ElementsMaybeSignalType<T>

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impl<T, V, E> IntoElementsMaybeSignalType<T, SignalMarker> for V
where V: Get<Value = E> + 'static, T: From<E> + Clone,

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fn into_elements_maybe_signal_type(self) -> ElementsMaybeSignalType<T>

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impl<T, Js, C, G> IntoElementsMaybeSignalType<T, SignalVecMarker> for G
where T: From<Js> + Clone, G: Get<Value = C> + 'static, C: IntoIterator<Item = Js>,

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fn into_elements_maybe_signal_type(self) -> ElementsMaybeSignalType<T>

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impl<T, Js, C, G> IntoElementsMaybeSignalType<T, SignalVecOptionMarker> for G
where T: From<Js> + Clone, G: Get<Value = C> + 'static, C: IntoIterator<Item = Option<Js>>,

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fn into_elements_maybe_signal_type(self) -> ElementsMaybeSignalType<T>

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impl<E, T, Encoding, Request> IntoReq<Patch<Encoding>, Request, E> for T
where Request: ClientReq<E>, Encoding: Encodes<T>, E: FromServerFnError,

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fn into_req(self, path: &str, accepts: &str) -> Result<Request, E>

Attempts to serialize the arguments into an HTTP request.
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impl<E, T, Encoding, Request> IntoReq<Post<Encoding>, Request, E> for T
where Request: ClientReq<E>, Encoding: Encodes<T>, E: FromServerFnError,

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fn into_req(self, path: &str, accepts: &str) -> Result<Request, E>

Attempts to serialize the arguments into an HTTP request.
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impl<E, T, Encoding, Request> IntoReq<Put<Encoding>, Request, E> for T
where Request: ClientReq<E>, Encoding: Encodes<T>, E: FromServerFnError,

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fn into_req(self, path: &str, accepts: &str) -> Result<Request, E>

Attempts to serialize the arguments into an HTTP request.
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impl<E, Response, Encoding, T> IntoRes<Patch<Encoding>, Response, E> for T
where Response: TryRes<E>, Encoding: Encodes<T>, E: FromServerFnError + Send, T: Send,

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async fn into_res(self) -> Result<Response, E>

Attempts to serialize the output into an HTTP response.
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impl<E, Response, Encoding, T> IntoRes<Post<Encoding>, Response, E> for T
where Response: TryRes<E>, Encoding: Encodes<T>, E: FromServerFnError + Send, T: Send,

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async fn into_res(self) -> Result<Response, E>

Attempts to serialize the output into an HTTP response.
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impl<E, Response, Encoding, T> IntoRes<Put<Encoding>, Response, E> for T
where Response: TryRes<E>, Encoding: Encodes<T>, E: FromServerFnError + Send, T: Send,

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async fn into_res(self) -> Result<Response, E>

Attempts to serialize the output into an HTTP response.
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impl<T> SerializableKey for T

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fn ser_key(&self) -> String

Serializes the key to a unique string. Read more
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impl<T> StorageAccess<T> for T

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fn as_borrowed(&self) -> &T

Borrows the value.
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fn into_taken(self) -> T

Takes the value.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.