TelegramPWA/src/components/auth/AuthQrCode.tsx
2021-06-16 19:12:38 +03:00

68 lines
2.2 KiB
TypeScript

import QrCreator from 'qr-creator';
import React, {
FC, useEffect, useRef, memo,
} from '../../lib/teact/teact';
import { withGlobal } from '../../lib/teact/teactn';
import { GlobalState, GlobalActions } from '../../global/types';
import { pick } from '../../util/iteratees';
import Loading from '../ui/Loading';
import Button from '../ui/Button';
import buildClassName from '../../util/buildClassName';
import useHistoryBack from '../../hooks/useHistoryBack';
type StateProps = Pick<GlobalState, 'connectionState' | 'authQrCode'>;
type DispatchProps = Pick<GlobalActions, 'returnToAuthPhoneNumber'>;
const DATA_PREFIX = 'tg://login?token=';
const AuthCode: FC<StateProps & DispatchProps> = ({
connectionState, authQrCode, returnToAuthPhoneNumber,
}) => {
// eslint-disable-next-line no-null/no-null
const qrCodeRef = useRef<HTMLDivElement>(null);
useEffect(() => {
if (!authQrCode || connectionState !== 'connectionStateReady') {
return;
}
const container = qrCodeRef.current!;
container.innerHTML = '';
container.classList.remove('pre-animate');
QrCreator.render({
text: `${DATA_PREFIX}${authQrCode.token}`,
radius: 0.5,
ecLevel: 'M',
fill: '#4E96D4',
size: 280,
}, container);
}, [connectionState, authQrCode]);
useHistoryBack(returnToAuthPhoneNumber);
return (
<div id="auth-qr-form" className="custom-scroll">
<div className="auth-form">
<div className={buildClassName('qr-container', authQrCode && 'pre-animate')} ref={qrCodeRef}>
{!authQrCode && <Loading />}
</div>
<h3> Log in to Telegram by QR Code</h3>
<ol>
<li><span>Open Telegram on your phone</span></li>
<li><span>Go to&nbsp;<b>Settings</b>&nbsp;&gt;&nbsp;<b>Devices</b>&nbsp;&gt;&nbsp;<b>Scan QR</b></span></li>
<li><span>Point your phone at this screen to confirm login</span></li>
</ol>
<Button isText onClick={returnToAuthPhoneNumber}>Log in by phone number</Button>
</div>
</div>
);
};
export default memo(withGlobal(
(global): StateProps => pick(global, ['connectionState', 'authQrCode']),
(setGlobal, actions): DispatchProps => pick(actions, ['returnToAuthPhoneNumber']),
)(AuthCode));