repo: integrate packages from former merchant-backoffice.git

1 files changed, 48 insertions, 0 deletions

diff --git a/packages/demobank-ui/src/components/QR.tsx b/packages/demobank-ui/src/components/QR.tsx
new file mode 100644
index 000000000..ee5b73c69
--- /dev/null
+++ b/packages/demobank-ui/src/components/QR.tsx
@@ -0,0 +1,48 @@
+/*
+ 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();
+    if (divRef.current)
+      divRef.current.innerHTML = qr.createSvgTag({
+        scalable: true,
+      });
+  });
+
+  return (
+    <div
+      style={{
+        width: '100%',
+        display: 'flex',
+        flexDirection: 'column',
+        alignItems: 'left',
+      }}
+    >
+      <div
+        style={{ width: '50%', minWidth: 200, maxWidth: 300 }}
+        ref={divRef}
+      />
+    </div>
+  );
+}