Trait EntitySlotExt 

pub trait EntitySlotExt<T: 'static> {
    // Required method
    fn slot<F, E>(
        &self,
        id: impl Into<ElementId>,
        builder: F,
    ) -> SlotElement<T, F>
       where F: Fn(&T, &mut Window<'_>, &mut Context<'_, T>) -> E + 'static,
             E: IntoElement + 'static;
}

Renders an Entity through a closure instead of a Render implementation.

Entity::cached gets the same reuse for types that implement Render. This is for state that has no renderer of its own, or that is rendered differently in different places.

Required Methods

fn slot<F, E>(&self, id: impl Into<ElementId>, builder: F) -> SlotElement<T, F>

where F: Fn(&T, &mut Window<'_>, &mut Context<'_, T>) -> E + 'static, E: IntoElement + 'static,

Renders this entity’s state through builder, reusing the subtree it produces until the entity is notified.

id identifies the slot, and becomes the root of the element id space the subtree’s internal state lives in, so an entity rendered twice in different places needs a slot id per place.

A slot is laid out from its own style, not from its contents: reusing a subtree means never rendering it to measure it. Give the slot a definite size, such as .size_full().

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<T: 'static> EntitySlotExt<T> for Entity<T>