thePR0M3TH3AN/bitvid
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Fix admin cache hydration cycle and guard QR code Android detection

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thePR0M3TH3AN committed 2025-10-21 19:47:05 -04:00
1 parent 677e673e1f
commit 6d7d5fc7ff
4 files changed
+134 -40
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js/utils/qrcode.js
+55 -35
View File
@@ -156,21 +156,25 @@ var QRCode;
}
// android 2.x doesn't support Data-URI spec
function _getAndroid() {
var android = false;
var sAgent = navigator.userAgent;
if (/android/i.test(sAgent)) { // android
android = true;
var aMat = sAgent.toString().match(/android ([0-9]\.[0-9])/i);
if (aMat && aMat[1]) {
android = parseFloat(aMat[1]);
}
}
return android;
}
function _getAndroid() {
if (typeof navigator === "undefined" || !navigator.userAgent) {
return false;
}
var android = false;
var sAgent = navigator.userAgent;
if (/android/i.test(sAgent)) { // android
android = true;
var aMat = sAgent.toString().match(/android ([0-9]\.[0-9])/i);
if (aMat && aMat[1]) {
android = parseFloat(aMat[1]);
}
}
return android;
}
var svgDrawer = (function() {
@@ -279,26 +283,42 @@ var QRCode;
this._elCanvas.style.display = "none";
}
// Android 2.1 bug workaround
// http://code.google.com/p/android/issues/detail?id=5141
if (this._android && this._android <= 2.1) {
var factor = 1 / window.devicePixelRatio;
var drawImage = CanvasRenderingContext2D.prototype.drawImage;
CanvasRenderingContext2D.prototype.drawImage = function (image, sx, sy, sw, sh, dx, dy, dw, dh) {
if (("nodeName" in image) && /img/i.test(image.nodeName)) {
for (var i = arguments.length - 1; i >= 1; i--) {
arguments[i] = arguments[i] * factor;
}
} else if (typeof dw == "undefined") {
arguments[1] *= factor;
arguments[2] *= factor;
arguments[3] *= factor;
arguments[4] *= factor;
}
drawImage.apply(this, arguments);
};
}
// Android 2.1 bug workaround
// http://code.google.com/p/android/issues/detail?id=5141
var legacyAndroidVersion = (function () {
try {
return _getAndroid();
} catch (error) {
return false;
}
})();
if (
legacyAndroidVersion &&
legacyAndroidVersion <= 2.1 &&
typeof CanvasRenderingContext2D !== "undefined"
) {
var pixelRatio =
typeof window !== "undefined" && window.devicePixelRatio
? window.devicePixelRatio
: 1;
var factor = pixelRatio ? 1 / pixelRatio : 1;
var drawImage = CanvasRenderingContext2D.prototype.drawImage;
CanvasRenderingContext2D.prototype.drawImage = function (image, sx, sy, sw, sh, dx, dy, dw, dh) {
if (("nodeName" in image) && /img/i.test(image.nodeName)) {
for (var i = arguments.length - 1; i >= 1; i--) {
arguments[i] = arguments[i] * factor;
}
} else if (typeof dw == "undefined") {
arguments[1] *= factor;
arguments[2] *= factor;
arguments[3] *= factor;
arguments[4] *= factor;
}
drawImage.apply(this, arguments);
};
}
/**
* Check whether the user's browser supports Data URI or not