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MvuLogic

oxide_mvu

Trait MvuLogic 

Source 
pub trait MvuLogic<Event: EventTrait, Model, Props> {
    // Required methods
    fn init(&self, model: Model) -> (Model, Effect<Event>);
    fn update(&self, event: Event, model: &Model) -> (Model, Effect<Event>);
    fn view(&self, model: &Model, emitter: &Emitter<Event>) -> Props;
}
Expand description

Application logic trait defining the MVU contract.

Implementations must provide three pure functions:

  • init: Initialize the model and produce initial effects
  • update: Transform (Event, Model) → (Model, Effect)
  • view: Derive Props from Model with event emitter capability

See the crate-level documentation for a complete example.

Required Methods§

Source

fn init(&self, model: Model) -> (Model, Effect<Event>)

Initialize the runtime from an initial model with effects and state changes as needed.

This is called once when the runtime starts. Use it to set up initial state and trigger any bootstrap events.

§Arguments
  • model - The initial model state
§Returns

A tuple of (Model, Effect<Event>) containing the initialized model and any effects to process during startup.

Source

fn update(&self, event: Event, model: &Model) -> (Model, Effect<Event>)

Reduce an event to an updated model and side effects.

This function takes an event and the current model, returning the new model and any effects to process. All state changes must happen through this function.

§Arguments
  • event - The event to process
  • model - The current model state
§Returns

A tuple of (Model, Effect<Event>) containing the updated model and any effects to process.

Source

fn view(&self, model: &Model, emitter: &Emitter<Event>) -> Props

Reduce to Props from the current model.

This function creates a renderable representation (Props) from the model. The provided Emitter allows Props to contain callbacks that can trigger new events.

§Arguments
  • model - The current model state
  • emitter - Event emitter for creating callbacks
§Returns

Props derived from the model, ready for rendering via Renderer::render.

Implementors§