one/dist/esm/platform/light-sensor/index.mjs

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

import { assertLightSensorListener, assertUpdateInterval } from "./validate.mjs";

function lightSensorCtor() {
	if (typeof window === "undefined") return void 0;
	const ctor = window.AmbientLightSensor;
	return typeof ctor === "function" ? ctor : void 0;
}
function isAvailable() {
	return lightSensorCtor() !== void 0;
}
function setUpdateInterval(intervalMs) {
	assertUpdateInterval(intervalMs);
}
function addListener(listener) {
	assertLightSensorListener(listener);
	const Ctor = lightSensorCtor();
	if (!Ctor) return { remove: () => {} };
	let sensor;
	const onReading = () => {
		if (sensor) listener({
			illuminance: sensor.illuminance,
			timestamp: Date.now() / 1e3
		});
	};
	try {
		sensor = new Ctor();
		sensor.addEventListener("reading", onReading);
		sensor.start();
	} catch {
		sensor = void 0;
		return { remove: () => {} };
	}
	return { remove: () => {
		sensor?.removeEventListener("reading", onReading);
		try {
			sensor?.stop();
		} catch {}
		sensor = void 0;
	} };
}
const LightSensor = Object.freeze({
	isAvailable,
	setUpdateInterval,
	addListener
});

export { LightSensor };
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