Struct zng_app::handler::FilterAppHandler

pub struct FilterAppHandler<A, H, F> { /* private fields */ }

App handler wrapper that filters the events, only delegating to self when filter returns true.

Implementations

impl<A, H, F> FilterAppHandler<A, H, F>

where A: Clone + 'static, H: AppHandler<A>, F: FnMut(&A) -> bool + Send + 'static,

pub fn new(handler: H, filter: F) -> Self

New filter handler.

Trait Implementations

impl<A, H, F> AppHandler<A> for FilterAppHandler<A, H, F>

where A: Clone + 'static, H: AppHandler<A>, F: FnMut(&A) -> bool + Send + 'static,

fn event(&mut self, args: &A, handler_args: &AppHandlerArgs<'_>)

Called every time the event happens.

fn boxed(self) -> Box<dyn AppHandler<A>>

where Self: Sized,

Boxes the handler.

fn cfg_boxed(self) -> Box<dyn AppHandler<A>>

where Self: Sized,

Boxes the handler if the feature = "dyn_closure" is enabled, otherwise maintain the same type.