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wasmWorker example: Add option to receive empty response when QR not found #87

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wasmWorker example: Add option to receive empty response when QR not found #87

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wasmWorker example: Add option to receive empty response when QR not …
JL102 Nov 9, 2023
52e1607
Added alwaysRespond stuff to jsQrWorker too
JL102 Nov 9, 2023
1122728
re added newline at end of file
JL102 Nov 9, 2023
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13 changes: 12 additions & 1 deletion public/jsQrWorker.js
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Original file line number Diff line number Diff line change
Expand Up @@ -16,9 +16,20 @@ self.addEventListener('message', event => {
const t1 = new Date().getTime();
if (code != null) {
console.log(`Scanned in ${t1-t0} ms`);
// Send data back to main JS thread if QR code was found
postMessage({
data: code.data,
ms: t1-t0
});
}
});
else {
if (event.data.alwaysRespond) {
// If alwaysRespond is true, send back empty result when scanning finished
postMessage({
data: undefined,
type: undefined,
ms: t1-t0
});
}
}
});
13 changes: 12 additions & 1 deletion public/wasmWorker.js
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Original file line number Diff line number Diff line change
Expand Up @@ -20,11 +20,22 @@ importScripts("wasm/koder.js");
const scanResult = koder.decode(data, this.width, this.height);
const t1 = new Date().getTime();
if (scanResult) {
// Send data back to main JS thread if QR code was found
postMessage({
data: scanResult.code,
type: scanResult.type,
ms: t1-t0
});
}
else {
if (event.data.alwaysRespond) {
// If alwaysRespond is true, send back empty result when scanning finished
postMessage({
data: undefined,
type: undefined,
ms: t1-t0
});
}
}
});
})();
})();