Trait SimpleComponent

pub trait SimpleComponent: Sized + 'static {
    type Input: Debug + 'static;
    type Output: Debug + 'static;
    type Init;
    type Root: Debug + Clone;
    type Widgets: 'static;

    // Required methods
    fn init_root() -> Self::Root;
    fn init(
        init: Self::Init,
        root: Self::Root,
        sender: ComponentSender<Self>,
    ) -> ComponentParts<Self>;

    // Provided methods
    fn update(&mut self, message: Self::Input, sender: ComponentSender<Self>) { ... }
    fn update_cmd(
        &mut self,
        input: &Sender<Self::Input>,
        output: Sender<Self::Output>,
    ) { ... }
    fn update_view(
        &self,
        widgets: &mut Self::Widgets,
        sender: ComponentSender<Self>,
    ) { ... }
    fn shutdown(
        &mut self,
        widgets: &mut Self::Widgets,
        output: Sender<Self::Output>,
    ) { ... }
}

Elm-style variant of a Component with view updates separated from input updates.

Required Associated Types

type Input: Debug + 'static

The message type that the component accepts as inputs.

type Output: Debug + 'static

The message type that the component provides as outputs.

type Init

The parameter used to initialize the component.

type Root: Debug + Clone

The top-level widget of the component.

type Widgets: 'static

The type that’s used for storing widgets created for this component.

Required Methods

fn init_root() -> Self::Root

Initializes the root widget

fn init( init: Self::Init, root: Self::Root, sender: ComponentSender<Self>, ) -> ComponentParts<Self>

Creates the initial model and view, docking it into the component.

Provided Methods

fn update(&mut self, message: Self::Input, sender: ComponentSender<Self>)

Processes inputs received by the component.

fn update_cmd( &mut self, input: &Sender<Self::Input>, output: Sender<Self::Output>, )

Defines how the component should respond to command updates.

fn update_view( &self, widgets: &mut Self::Widgets, sender: ComponentSender<Self>, )

Updates the view after the model has been updated.

fn shutdown( &mut self, widgets: &mut Self::Widgets, output: Sender<Self::Output>, )

Last method called before a component is shut down.

This method is guaranteed to be called even when the entire application is shut down.

Object Safety

This trait is not object safe.

Implementations on Foreign Types

impl SimpleComponent for ()

An empty, non-interactive component as a placeholder for tests.

type Input = ()

type Output = ()

type Init = ()

type Root = ()

type Widgets = ()

fn init_root() -> Self::Root

fn init( _init: Self::Init, _root: Self::Root, _sender: ComponentSender<Self>, ) -> ComponentParts<Self>

Implementors

impl<T> SimpleComponent for T

where T: Worker + 'static,

type Root = ()

type Widgets = ()

type Init = <T as Worker>::Init

type Input = <T as Worker>::Input

type Output = <T as Worker>::Output