vail-adapter/webhid-test.html

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2022-05-22 21:55:22 -06:00
<!DOCTYPE html>
<html>
<head>
<script>
let deviceFilter = { vendorId: 0x1234, productId: 0xabcd };
let requestParams = { filters: [deviceFilter] };
let outputReportId = 0x01;
let outputReport = new Uint8Array([42]);
function handleConnectedDevice(e) {
console.log("Device connected: " + e.device.productName);
}
function handleDisconnectedDevice(e) {
console.log("Device disconnected: " + e.device.productName);
}
function handleInputReport(e) {
console.log(e.device.productName + ": got input report " + e.reportId);
console.log(new Uint8Array(e.data.buffer));
}
navigator.hid.addEventListener("connect", handleConnectedDevice);
navigator.hid.addEventListener("disconnect", handleDisconnectedDevice);
function listen() {
navigator.hid.requestDevice(requestParams).then((devices) => {
if (devices.length == 0) return;
devices[0].open().then(() => {
console.log("Opened device: " + device.productName);
device.addEventListener("inputreport", handleInputReport);
device.sendReport(outputReportId, outputReport).then(() => {
console.log("Sent output report " + outputReportId);
});
});
});
}
function init() {
document.querySelector("#moo").addEventListener("click", listen)
}
if (document.readyState === "loading") {
document.addEventListener("DOMContentLoaded", init)
} else {
init()
}
</script>
</head>
<body>
<button id="moo">start</button>
</body>
</html>