Trait relm::Widget

pub trait Widget where
    Self: Update,
    Self::Root: Clone + IsA<Object> + IsA<Widget>, {
    type Root;
    fn root(&self) -> Self::Root;
    fn view(relm: &Relm<Self>, model: Self::Model) -> Self;

    fn init_view(&mut self) { ... }
    fn on_add<W: IsA<Widget> + IsA<Object>>(&self, _parent: W) { ... }
    fn parent_id() -> Option<&'static str> { ... }
    fn run(model_param: Self::ModelParam) -> Result<(), BoolError>
    where
        Self: 'static,
    { ... }
}

Trait to implement to manage widget’s events.

Associated Types

type Root

The type of the root widget.

Required methods

fn root(&self) -> Self::Root

Get the root widget of the view.

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

Create the initial view.

Provided methods

fn init_view(&mut self)

Update the view after it is initially created. This method is only useful when using the #[widget] attribute, because when not using it, you can use the view() method instead.

fn on_add<W: IsA<Widget> + IsA<Object>>(&self, _parent: W)

Method called when the widget is added to its parent. This is currently only used to set the child properties of a widget as relm widget could have child properties and we don’t know its parent when it is defined. Thus, we call on_add() when it is added to its parent to set the child properties.

fn parent_id() -> Option<&'static str>

Get the parent ID. This is useful for custom Container implementation: when you implement the Container::add_widget(), you might want to insert widgets elsewhere depending of this id.

fn run(model_param: Self::ModelParam) -> Result<(), BoolError> where
    Self: 'static, 

Create the window from this widget and start the main loop.

Implementors