Versie 0.2.0

client/ui/qr.js

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+// Generated, do not edit. sha256:0357e7318367558ea1c4f3c06bae817f3ef795f556618cac3bc184f31a478f4c
+import qrcode from '../vendor/qrcode/qrcode.mjs';
+import { esc } from './escape.js';
+
+const ALPHANUMERIC = /^[0-9A-Z $%*+\-./:]*$/;
+
+export const invoiceQrText = (paymentRequest) => `LIGHTNING:${String(paymentRequest).toUpperCase()}`;
+
+export function qrMatrix(text) {
+  const qr = qrcode(0, 'M');
+  qr.addData(text, ALPHANUMERIC.test(text) ? 'Alphanumeric' : 'Byte');
+  qr.make();
+  const n = qr.getModuleCount();
+  return Array.from({ length: n }, (_, r) => Array.from({ length: n }, (_, c) => qr.isDark(r, c)));
+}
+
+export function qrSvg(text, { quiet = 4, label = '', px = 240 } = {}) {
+  const m = qrMatrix(text);
+  const size = m.length + quiet * 2;
+  let d = '';
+  m.forEach((row, r) => row.forEach((dark, c) => { if (dark) d += `M${c + quiet} ${r + quiet}h1v1h-1z`; }));
+  return `<svg class="qr" width="${px}" height="${px}" viewBox="0 0 ${size} ${size}" role="img"${label ? ` aria-label="${esc(label)}"` : ''} shape-rendering="crispEdges">`
+    + `<rect width="${size}" height="${size}" fill="#fff"/><path d="${d}" fill="#000"/></svg>`;
+}