1 files changed, 36 insertions, 0 deletions
diff --git a/packages/backend/src/components/QR.tsx b/packages/backend/src/components/QR.tsx
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+++ b/packages/backend/src/components/QR.tsx
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+/*
+ This file is part of GNU Taler
+ (C) 2021 Taler Systems S.A.
+
+ GNU Taler is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+ import { h, VNode } from "preact";
+ import { useEffect, useRef } from "preact/hooks";
+ import qrcode from "qrcode-generator";
+ 
+ export function QR({ text }: { text: string; }):VNode {
+   const divRef = useRef<HTMLDivElement>(null);
+   useEffect(() => {
+     const qr = qrcode(0, 'L');
+     qr.addData(text);
+     qr.make();
+     divRef.current.innerHTML = qr.createSvgTag({
+       scalable: true,
+     });
+   });
+ 
+   return <div style={{ width: '100%', display: 'flex', flexDirection: 'column', alignItems: 'center' }}>
+     <div style={{ width: '50%', minWidth: 200, maxWidth: 300 }} ref={divRef} />
+   </div>;
+ }
+ 
+\ No newline at end of file