Type Alias InjectorViewportSubscriber

pub type InjectorViewportSubscriber = Subscriber<InjectorViewportSpec, SetupWatchViewportResponder, Box<dyn Fn(&InjectorViewportSpec, SetupWatchViewportResponder) -> bool + Send + Sync>>;

Used to implement fuchsia.ui.pointerinjector.configuration.Setup.WatchViewport().

Aliased Type

struct InjectorViewportSubscriber { /* private fields */ }

Implementations

impl<S, O, F> Subscriber<S, O, F>

where F: Fn(&S, O) -> bool,

pub fn register(&self, observation: O) -> Result<(), HangingGetServerError>

Register a new observation.

Errors occur when:

• A Subscriber attempts to register an observation when there is already an outstanding observation waiting on updates.

Returns observation on error.

pub fn register2(&self, observation: O) -> Result<(), O>

Register a new observation.

Errors occur when:

• A Subscriber attempts to register an observation when there is already an outstanding observation waiting on updates.

Returns observation on error.