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<!DOCTYPE html>
<meta charset="utf-8">
<title>iframe sensor tester</title>
<script src="/generic-sensor/resources/generic-sensor-helpers.js"></script>
<script>
let mockBackend = null;
let sensor = null;
let sensorType = null;
async function messageHandler(e) {
if (e.data.command === 'create_sensor') {
if (!sensor) {
mockBackend = await initialize_generic_sensor_tests();
sensor = new self[e.data.type]();
sensorType = e.data.type;
}
return Promise.resolve('success');
} else if (e.data.command === 'start_sensor') {
if (!sensor) {
return Promise.reject('"create_sensor" must be called first');
}
return new Promise((resolve, reject) => {
sensor.addEventListener('reading', () => {
resolve('success');
}, { once: true });
sensor.addEventListener('error', e => {
reject(`${e.error.name}: ${e.error.message}`);
}, { once: true });
sensor.start();
});
} else if (e.data.command === 'is_sensor_suspended') {
if (!mockBackend) {
return Promise.reject('"create_sensor" must be called first');
}
const mockPlatformSensor = await mockBackend.getSensorProvider().getCreatedSensor(sensorType);
return Promise.resolve(!mockPlatformSensor.isReadingData());
} else if (e.data.command === 'reset_sensor_backend') {
if (sensor) {
sensor.stop();
await mockBackend.reset();
sensor = null;
mockBackend = null;
}
return Promise.resolve('success');
} else {
return Promise.reject(`unknown command "${e.data.command}"`);
}
}
window.onmessage = async (e) => {
let reply;
try {
reply = await messageHandler(e);
} catch (error) {
reply = error;
}
e.source.postMessage({ command: e.data.command, result: reply }, '*');
}
</script>
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