Trait relm_state::Update

pub trait Update where
    Self: Sized,
    Self::Msg: DisplayVariant, {
    type Model;
    type ModelParam: Sized;
    type Msg;
    fn model(relm: &Relm<Self>, param: Self::ModelParam) -> Self::Model;
    fn update(&mut self, event: Self::Msg);

    fn subscriptions(&mut self, _relm: &Relm<Self>) { ... }
}

Trait for a basic (non-widget) component. A component has a model (data) associated with it and can mutate it when it receives a message (in the update() method).

Associated Types

type Model

The type of the model.

type ModelParam: Sized

The type of the parameter of the model() function used to initialize the model.

type Msg

The type of the messages sent to the update() method.

Required Methods

fn model(relm: &Relm<Self>, param: Self::ModelParam) -> Self::Model

Create the initial model.

fn update(&mut self, event: Self::Msg)

Method called when a message is received from an event.

Provided Methods

fn subscriptions(&mut self, _relm: &Relm<Self>)

Connect the subscriptions. Subscriptions are Future/Stream that are spawn when the object is created.

Implementors