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BangleApps
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Adds some primitive error handling

master
Martin Boonk 2021-12-07 22:54:36 +01:00
parent 9a5d01899b
commit 59a4fda701
1 changed files with 17 additions and 3 deletions
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20
apps/qrcode/custom.html
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@ -47,7 +47,9 @@
</div> </div>
<hr> <hr>
<p id="errors" style="color:Tomato;"></p>
<p>Try your QR Code: <div id="qrcode"></div></p> <p>Try your QR Code: <div id="qrcode"></div></p>
<p>Click <button id="upload" class="btn btn-primary">Upload</button></p> <p>Click <button id="upload" class="btn btn-primary">Upload</button></p>
<script src="../../core/lib/customize.js"></script> <script src="../../core/lib/customize.js"></script>
@ -95,6 +97,7 @@
return qrstring; return qrstring;
} }
function refreshQRCode(){ function refreshQRCode(){
document.getElementById("errors").innerText="";
qrcode.clear(); // clear the code. qrcode.clear(); // clear the code.
var qrText = ""; var qrText = "";
if(document.getElementById("useWIFI").checked){ if(document.getElementById("useWIFI").checked){
@ -109,10 +112,17 @@
} }
qrcode._htOption.text = qrText; qrcode._htOption.text = qrText;
qrcode._htOption.correctLevel = parseInt(document.getElementById("correction").value); qrcode._htOption.correctLevel = parseInt(document.getElementById("correction").value);
qrcode.makeCode(qrText); try {
qrcode.makeCode(qrText);
} catch (error) {
document.getElementById("errors").innerText="Error: QR could not be created.";
console.error(error);
}
var integerScale = Math.max(Math.floor(targetSize / (qrcode._oQRCode.moduleCount + 1)),1); var integerScale = Math.max(Math.floor(targetSize / (qrcode._oQRCode.moduleCount + 1)),1);
if (integerScale == 1) document.getElementById("errors").innerText = "Warning, QR will probably be too small to properly scan. Try less data or less error correction.";
finalSizeQr = integerScale * (qrcode._oQRCode.moduleCount + 1); finalSizeQr = integerScale * (qrcode._oQRCode.moduleCount + 1);
finalSizeCanvas = finalSizeQr - 1; finalSizeCanvas = finalSizeQr - 1;
@ -121,8 +131,12 @@
document.getElementsByTagName("canvas")[0].width = finalSizeCanvas; document.getElementsByTagName("canvas")[0].width = finalSizeCanvas;
document.getElementsByTagName("canvas")[0].height = finalSizeCanvas; document.getElementsByTagName("canvas")[0].height = finalSizeCanvas;
try {
qrcode.makeCode(qrText); qrcode.makeCode(qrText);
} catch (error) {
document.getElementById("errors").innerText="Error: QR could not be created.";
console.error(error);
}
} }
var qrcode; var qrcode;