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qrcode-decoder
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yugasun 7 years ago
commit 0cab0e9e0c
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assets/qrcode-video.mp4
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camera.html
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<!DOCTYPE html>
<html>
<head>
<title>QrcodeDecoder - Camera</title>
</head>
<body>
<button id="start">Start</button> <button id="stop">Stop</button><br />
<span id="result">Click start to scan qrcode.</span><br />
<hr />
<video id="video" autoplay></video>
<script src="./index.aio.min.js"></script>
<script type="text/javascript">
function main() {
var qr = new QrcodeDecoder();
var video = document.querySelector('#video');
var start = document.querySelector('#start');
var stop = document.querySelector('#stop');
var result = document.querySelector('#result');
async function startScan() {
if (!qr.isCanvasSupported()) {
alert("Your browser doesn't match the required specs.");
throw new Error('Canvas and getUserMedia are required');
}
let code = await qr.decodeFromCamera(video);
console.log('code', code);
result.innerText = "Result: " + code.data;
}
start.onclick = startScan;
stop.onclick = function() {
qr.stop();
};
}
main();
</script>
</body>
</html>

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image.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>QrcodeDecoder - Image</title>
</head>
<body>
<button id="decode">Decode!</button><br>
<span id="result"></span><br>
<img src="./assets/qrcode.png" alt="qr code" />
<script src="./index.aio.min.js"></script>
<script type="module">
function main() {
var qr = new QrcodeDecoder();
var btn = document.querySelector('button#decode');
var img = document.querySelector('img');
var result = document.querySelector('#result');
btn.onclick = async () => {
// you can also decode from image path
// const code = await qr.decodeFromImage('./assets/qrcode.png');
const code = await qr.decodeFromImage(img);
console.log(code);
result.innerText = code.data;
};
}
main();
</script>
</body>
</html>

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index.aio.min.js vendored
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18
index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>QrcodeDecoder</title>
</head>
<body>
<h1>QrcodeDecoder</h1>
<h2>Examples</h2>
<ul>
<li><a href="image.html">Image</a></li>
<li><a href="video.html">Video</a></li>
<li><a href="camera.html">Camera</a></li>
</ul>
</body>
</html>

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video.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>QrcodeDecoder - Video</title>
</head>
<body>
<button id="start">Start</button> <button id="stop">Stop</button><br />
<span id="result">Click start to scan qrcode.</span><br />
<video src="./assets/qrcode-video.mp4"></video>
<script src="./index.aio.min.js"></script>
<script type="text/javascript">
function main() {
var video = document.querySelector('video');
var result = document.querySelector('#result');
var start = document.querySelector('#start');
var stop = document.querySelector('#stop');
var qr = new QrcodeDecoder();
start.onclick = startScan;
stop.onclick = function() {
qr.stop();
video.pause();
};
async function startScan() {
video.play();
const code = await qr.decodeFromVideo(video);
console.log('code', code);
result.innerText = 'Result: ' + code.data;
}
}
main();
</script>
</body>
</html>
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