Trait InstanceLocalServerHandler 

pub trait InstanceLocalServerHandler<___T = Channel>
where
    ___T: Transport,
{
    // Required methods
    fn add_lines(
        &mut self,
        request: Request<AddLines, ___T>,
    ) -> impl Future<Output = ()>;
    fn ready(
        &mut self,
        responder: Responder<Ready, ___T>,
    ) -> impl Future<Output = ()>;

    // Provided method
    fn on_unknown_interaction(
        &mut self,
        ordinal: u64,
    ) -> impl Future<Output = ()> { ... }
}

A server handler for the Instance protocol.

See Instance for more details.

Required Methods

fn add_lines( &mut self, request: Request<AddLines, ___T>, ) -> impl Future<Output = ()>

Add multiple lines to the canvas. We are able to reduce protocol chatter and the number of requests needed by batching instead of calling the simpler AddLine(...) one line at a time.

fn ready( &mut self, responder: Responder<Ready, ___T>, ) -> impl Future<Output = ()>

Rather than the server randomly performing draws, or trying to guess when to do so, the client must explicitly ask for them. This creates a bit of extra chatter with the additional method invocation, but allows much greater client-side control of when the canvas is “ready” for a view update, thereby eliminating unnecessary draws.

This method also has the benefit of “throttling” the -> OnDrawn(...) event - rather than allowing a potentially unlimited flood of -> OnDrawn(...) calls, we now have the runtime enforced semantic that each -> OnDrawn(...) call must follow a unique Ready() -> () call from the client. An unprompted -> OnDrawn(...) is invalid, and should cause the channel to immediately close.

Provided Methods

fn on_unknown_interaction(&mut self, ordinal: u64) -> impl Future<Output = ()>

Dyn Compatibility

This trait is not dyn compatible.

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

Implementations on Foreign Types

impl<___H, ___T> InstanceLocalServerHandler<___T> for Local<___H>

where ___H: InstanceServerHandler<___T>, ___T: Transport,

async fn add_lines(&mut self, request: Request<AddLines, ___T>)

async fn ready(&mut self, responder: Responder<Ready, ___T>)

async fn on_unknown_interaction(&mut self, ordinal: u64)

Implementors