diff options
Diffstat (limited to 'packages/demobank-ui/src/components/QR.tsx')
-rw-r--r-- | packages/demobank-ui/src/components/QR.tsx | 48 |
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> + ); +} |