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special.html
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special.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Special QR code formats</title>
</head>
<body>
<!-- @TODO: add styles to make it prettier -->
<h1>Special QR code formats</h1>
<p>There are some special QR code formats, that can be used to embed links, instructions to send a mail or SMS, WLAN credentials, etc in them.
To make it a bit easier I listed some of them here and added input fields for creating them quickly.
When you see <code>${VARIABLE_NAME}</code> in the format, replace it with the corresponding value you want to use.
</p>
<h2>Link</h2>
<p>When you scan it with a phone, you will visit / be offered to visit the linked website</p>
<p>Format: <code>${URL}</code></p>
<h3>Generator</h3>
<label>Link: </label><input data-demo="link" value="https://qr.15c.me/qr.html"></label>
<div id="div-link"></div>
<h2>WLAN network</h2>
<p>When you scan the code you will be offered to join the network. No need to manually type the name or password.</p>
<p>Format: <code>WIFI:T:WPA;S:${NETWORK_NAME};P:${PASSWORD};;</code></p>
<h3>Generator</h3>
<label>Network name (SSID): </label><input id="wlan-ssid" data-demo="wlan" value="My Home Network"></label>
<br>
<label>Password: </label><input id="wlan-password" data-demo="wlan" value="Monkey123!"></label>
<div id="div-wlan"></div>
<script>
inputs = document.querySelectorAll("input[data-demo]");
for (input of inputs) {
const demo_name = input.attributes["data-demo"].value;
// Yeah, using values and innerHTML is not great style, but the data is not user supplied, so it shouldn't create any XSS vulnerabilities
const demo_div = document.getElementById(`div-${demo_name}`);
if (demo_div.childElementCount == 0) {
demo_div.innerHTML = `<textarea id="text-${demo_name}" disabled></textarea><br><button id="button-${demo_name}"">Generate QR code</button>`;
const area = document.getElementById(`text-${demo_name}`);
const button = document.getElementById(`button-${demo_name}`);
button.addEventListener("click", () => {
const url = `./qr.html#${encodeURIComponent(area.value)}`;
// open the QR code generator in a new tab
open(url, "_blank");
})
}
const area = document.getElementById(`text-${demo_name}`);
const on_update = () => {
if (demo_name == "link") {
area.value = input.value;
} else if (demo_name == "wlan") {
const wlan_ssid = document.getElementById("wlan-ssid").value;
const wlan_password = document.getElementById("wlan-password").value;
area.value = `WIFI:T:WPA;S:${wlan_ssid};P:${wlan_password};;`;
}
// @TODO: add all types of
};
input.addEventListener("change", on_update);//confirmed with enter
input.addEventListener("input", on_update);// while typing
on_update(); // generate the initial value
}
</script>
</body>
</html>