Struct webrender_api::NotificationRequest

pub struct NotificationRequest {
    pub(crate) handler: Option<Box<dyn NotificationHandler>>,
    pub(crate) when: Checkpoint,
}

A request to notify a handler when the transaction reaches certain stages of the rendering pipeline.

The request is guaranteed to be notified once and only once, even if the transaction is dropped before the requested check-point.

Fields

handler: Option<Box<dyn NotificationHandler>>

when: Checkpoint

Implementations

impl NotificationRequest

pub fn new(when: Checkpoint, handler: Box<dyn NotificationHandler>) -> Self

Constructor.

pub fn when(&self) -> Checkpoint

The specified stage at which point the handler should be notified.

pub fn notify(self)

Called by WebRender at specified stages to notify the registered handler.

Trait Implementations

impl Clone for NotificationRequest

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Drop for NotificationRequest

fn drop(&mut self)

Executes the destructor for this type.