Trait iced_native::subscription::Recipe

pub trait Recipe<Hasher, Event> where
    Hasher: Hasher, {
    type Output;
    fn hash(&self, state: &mut Hasher);
    fn stream(
        self: Box<Self>, 
        input: Pin<Box<dyn Stream<Item = Event> + 'static + Send>>
    ) -> Pin<Box<dyn Stream<Item = Self::Output> + 'static + Send>>;
}

The description of a Subscription.

A Recipe is the internal definition of a Subscription. It is used by runtimes to run and identify subscriptions. You can use it to create your own!

Examples

The repository has a couple of examples that use a custom Recipe:

• download_progress, a basic application that asynchronously downloads a dummy file of 100 MB and tracks the download progress.
• stopwatch, a watch with start/stop and reset buttons showcasing how to listen to time.

Associated Types

type Output

The events that will be produced by a Subscription with this Recipe.

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Required methods

fn hash(&self, state: &mut Hasher)

Hashes the Recipe.

This is used by runtimes to uniquely identify a Subscription.

fn stream(
    self: Box<Self>,
    input: Pin<Box<dyn Stream<Item = Event> + 'static + Send>>
) -> Pin<Box<dyn Stream<Item = Self::Output> + 'static + Send>>

Executes the Recipe and produces the stream of events of its Subscription.

It receives some stream of generic events, which is normally defined by shells.

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Implementors

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