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Ascently/docs/src/components/QRCode.astro
Atridad Lahiji fed9bab2ea
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Fixeds QR flashing
2025-10-21 08:50:34 -06:00

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2.7 KiB
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---
import * as QR from "qrcode";
interface Props {
data: string;
size?: number;
alt?: string;
}
const { data, size = 200, alt = "QR Code" } = Astro.props;
// Generate QR code for dark mode
let darkModeQR = "";
try {
darkModeQR = await QR.toDataURL(data, {
width: size,
margin: 2,
color: {
dark: "#FFBF00",
light: "#17181C",
},
});
} catch (err) {
console.error("Failed to generate dark mode QR code:", err);
}
// Generate QR code for light mode
let lightModeQR = "";
try {
lightModeQR = await QR.toDataURL(data, {
width: size,
margin: 2,
color: {
dark: "#F24B3C",
light: "#FFFFFF",
},
});
} catch (err) {
console.error("Failed to generate light mode QR code:", err);
}
const uniqueId = `qr-${Math.random().toString(36).substr(2, 9)}`;
---
{
(darkModeQR || lightModeQR) && (
<img
id={uniqueId}
alt={alt}
width={size}
height={size}
data-light-src={lightModeQR}
data-dark-src={darkModeQR}
style="margin: auto;"
/>
)
}
<script is:inline define:vars={{ uniqueId, lightModeQR, darkModeQR }}>
(function () {
const img = document.getElementById(uniqueId);
if (!img) return;
const theme = document.documentElement.getAttribute("data-theme");
if (theme === "dark" && darkModeQR) {
img.setAttribute("src", darkModeQR);
} else if (lightModeQR) {
img.setAttribute("src", lightModeQR);
}
})();
</script>
<script>
function updateQRCodes() {
const theme = document.documentElement.getAttribute("data-theme");
const qrImages = document.querySelectorAll(
"img[data-light-src][data-dark-src]",
);
qrImages.forEach((img) => {
const lightSrc = img.getAttribute("data-light-src");
const darkSrc = img.getAttribute("data-dark-src");
if (theme === "dark" && darkSrc) {
img.setAttribute("src", darkSrc);
} else if (lightSrc) {
img.setAttribute("src", lightSrc);
}
});
}
// Set initial theme on page load
updateQRCodes();
// Watch for theme changes
const observer = new MutationObserver((mutations) => {
mutations.forEach((mutation) => {
if (
mutation.type === "attributes" &&
mutation.attributeName === "data-theme"
) {
updateQRCodes();
}
});
});
observer.observe(document.documentElement, {
attributes: true,
attributeFilter: ["data-theme"],
});
</script>