Trait AsyncPropertySampler 

pub trait AsyncPropertySampler {
    // Required methods
    fn register(&self);
    fn sample(
        &self,
        document_id: DocumentId,
        generated_frame_id: Option<u64>,
    ) -> Vec<FrameMsg>;
    fn deregister(&self);
}

Allows callers to hook into the main render_backend loop and provide additional frame ops for generate_frame transactions. These functions are all called from the render backend thread.

Required Methods

fn register(&self)

This is called exactly once, when the render backend thread is started and before it processes anything.

fn sample( &self, document_id: DocumentId, generated_frame_id: Option<u64>, ) -> Vec<FrameMsg>

This is called for each transaction with the generate_frame flag set (i.e. that will trigger a render). The list of frame messages returned are processed as though they were part of the original transaction.

fn deregister(&self)

This is called exactly once, when the render backend thread is about to terminate.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors