Struct BrowserSingleThreadedDispatcherImpl 

pub struct BrowserSingleThreadedDispatcherImpl { /* private fields */ }

Dispatcher backend for the browser. The browser event loop is the only loop: wake-ups are posted as macrotasks and the dispatcher runs on the main thread, so its own state needs no locking. A module built with threads has other threads (the render worker), which wake the dispatcher through its signal handle. Pending input is deliberately not queried: the browser dispatches input between our tasks on its own, and gating low-priority jobs on a pending-input query starves them for as long as the pointer keeps moving.

Implementations

impl BrowserSingleThreadedDispatcherImpl

pub fn new() -> Rc<Self>

Creates the dispatcher backend of the current thread and makes it the receiver of the callbacks of the page.

Trait Implementations

impl IDispatcherImpl for BrowserSingleThreadedDispatcherImpl

fn current_thread_is_loop_thread(&self) -> bool

fn signal(&self)

Asynchronously triggers the signaled callback. Called on the loop thread; other threads go through signal_handle.

fn signal_handle(&self) -> Arc<dyn IDispatcherSignal>

The thread-safe handle that does what signal does.

fn signaled(&self) -> &DispatcherImplEvent

Raised on the loop thread in response to a signal.

fn timer(&self) -> &DispatcherImplEvent

Raised on the loop thread when the timer set by update_timer is due.

fn now(&self) -> i64

Monotonic time in milliseconds.

fn update_timer(&self, due_time_in_ms: Option<i64>)

Sets (or clears) the time at which timer is raised.

fn as_explicit_background_processing( &self, ) -> Option<&dyn IDispatcherImplWithExplicitBackgroundProcessing>

Returns self when the implementation supports explicit background processing requests.

fn as_pending_input(&self) -> Option<&dyn IDispatcherImplWithPendingInput>

Returns self when the implementation can report pending input.

fn as_controlled(&self) -> Option<&dyn IControlledDispatcherImpl>

Returns self when the implementation can run the event loop.

impl IDispatcherImplWithExplicitBackgroundProcessing for BrowserSingleThreadedDispatcherImpl

fn ready_for_background_processing(&self) -> &DispatcherImplEvent

Raised on the loop thread once input has been handled after a call to request_background_processing.

fn request_background_processing(&self)