Trait re_viewer_context::ComponentFallbackProvider

pub trait ComponentFallbackProvider {
    // Required method
    fn try_provide_fallback(
        &self,
        ctx: &QueryContext<'_>,
        component: ComponentName
    ) -> ComponentFallbackProviderResult;

    // Provided method
    fn fallback_for(
        &self,
        ctx: &QueryContext<'_>,
        component: ComponentName
    ) -> Box<dyn Array> { ... }
}

Provides fallback values for components, implemented typically by crate::SpaceViewClass and crate::VisualizerSystem.

Fallbacks can be based on arbitrarily complex & context sensitive heuristics.

Required Methods

fn try_provide_fallback( &self, ctx: &QueryContext<'_>, component: ComponentName ) -> ComponentFallbackProviderResult

Tries to provide a fallback value for a given component.

If the provider can’t handle the component or simply want to use a placeholder value, it should return ComponentFallbackProviderResult::ComponentNotHandled.

Fallbacks can be based on arbitrarily complex & context sensitive heuristics.

Provided Methods

fn fallback_for( &self, ctx: &QueryContext<'_>, component: ComponentName ) -> Box<dyn Array>

Provides a fallback value for a given component, first trying the provider and then falling back to the placeholder value registered in the viewer context.

Implementors

impl ComponentFallbackProvider for SpaceViewClassPlaceholder