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class IdlingRenderScheduler {
#renderers: Set<FrameRequestCallback>;
#rafId: number;
#ricId: number;
constructor() {
this.#renderers = new Set();
this.#rafId = 0;
this.#ricId = requestIdleCallback((deadline) => this.#schedule(deadline));
}
#schedule(deadline: IdleDeadline): void {
if (deadline.timeRemaining()) {
this.#rafId = requestAnimationFrame((time) => {
for (const renderer of this.#renderers) {
renderer(time);
}
});
}
this.#ricId = requestIdleCallback((arg) => this.#schedule(arg));
}
add(renderer: FrameRequestCallback): void {
this.#renderers.add(renderer);
}
delete(renderer: FrameRequestCallback): void {
this.#renderers.delete(renderer);
}
dispose(): void {
this.#renderers.clear();
cancelAnimationFrame(this.#rafId);
cancelIdleCallback(this.#ricId);
}
}
export const defaultIdlingRenderScheduler = new IdlingRenderScheduler();
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