79 lines
2.6 KiB
HTML
79 lines
2.6 KiB
HTML
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<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
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<meta name="apple-mobile-web-app-capable" content="yes" />
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<meta name="apple-touch-fullscreen" content="yes" />
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<style type="text/css">
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body {
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background: lightgray;
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}
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</style>
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<script src="qrenc-4.0.0.js" type="text/javascript"></script>
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<script type="text/javascript">
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let $ = (ele) => document.getElementById(ele);
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let fileData;
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let chunkSize;
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let segmentPosition = 0;
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let serveCodes = () => {
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$("status").value = `${fileData.length}/${segmentPosition}/${(segmentPosition / fileData.length).toFixed(2)}%`;
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doqr(
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$("startChunk").value + "|" + fileData.substring(segmentPosition, segmentPosition + chunkSize),
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Number($("qrSize").value),
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Number($("ecc").value)
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);
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segmentPosition += chunkSize;
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$("startChunk").value = segmentPosition / chunkSize;
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if (segmentPosition < fileData.length) {
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//window.setTimeout(serveCodes, 1000);
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}
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};
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let doqr = (data, size, ecc) => {
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var qr = new QR($("qrcanv"), data, size, size, ecc);
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};
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let getFile = (fileName) => {
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chunkSize = Number($("chunkSize").value);
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segmentPosition = Number($("startChunk").value * chunkSize);
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var xhr = new XMLHttpRequest();
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xhr.open("GET", fileName, true);
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xhr.responseType = "arraybuffer";
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xhr.onload = (e) => {
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tgt = e.currentTarget;
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if (tgt.status == 200) {
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let uInt8Array = new Uint8Array(tgt.response);
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let binaryString = new Array(uInt8Array.length);
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uInt8Array.map((x, idx) => (binaryString[idx] = String.fromCharCode(x)));
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fileData = window.btoa(binaryString.join(""));
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serveCodes();
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}
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};
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xhr.send();
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};
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</script>
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</head>
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<body>
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<div>
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Filename:<input type="text" value="input.dat" id="inputFileName" />
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<br />
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ECC (1-4):<input type="number" value="4" id="ecc" />
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<br />
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Qr-Size:<input type="number" value="400" id="qrSize" />
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<br />
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Chunk-Size:<input type="number" value="1200" id="chunkSize" />
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<br />
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Start-Chunk:<input type="number" value="0" id="startChunk" />
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<br />
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<button onclick="getFile($('inputFileName').value)">Read</button>
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<hr />
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<canvas id="qrcanv"></canvas>
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<hr />
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<input type="text" id="status" />
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</div>
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</body>
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</html>
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