one/dist/esm/platform/audio/events.mjs

One is a React framework for web, iOS, and Android apps.

function createPlayerEvents(read, updateIntervalMs) {
	const listeners = /* @__PURE__ */ new Set();
	let timer = null;
	function emit() {
		const status = read();
		listeners.forEach((listener) => listener(status));
	}
	function stop() {
		if (timer !== null) {
			clearInterval(timer);
			timer = null;
		}
	}
	return {
		add(event, listener) {
			if (event !== "playbackStatusUpdate") {
				throw new Error("AudioPlayer.addListener: expected 'playbackStatusUpdate'");
			}
			if (typeof listener !== "function") {
				throw new Error("AudioPlayer.addListener: expected a listener function");
			}
			listeners.add(listener);
			if (timer === null) timer = setInterval(emit, updateIntervalMs);
			queueMicrotask(() => {
				if (listeners.has(listener)) listener(read());
			});
			return { remove: () => {
				listeners.delete(listener);
				if (listeners.size === 0) stop();
			} };
		},
		removeAll() {
			listeners.clear();
			stop();
		}
	};
}

export { createPlayerEvents };
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