uva-covid19-testing-kiosk/components/Scan.tsx

121 lines
3.6 KiB
TypeScript

import {BarCodeScanner} from 'expo-barcode-scanner';
import React, {ReactElement, useState} from 'react';
import {Text, View} from 'react-native';
import {Button, DefaultTheme, HelperText, Subheading, TextInput, Title} from 'react-native-paper';
import {ButtonProps, ScannerProps} from '../models/ElementProps';
import {colors, styles} from './Styles';
declare type CameraType = number | 'front' | 'back' | undefined;
export const Scanner = (props: ScannerProps): ReactElement => {
const [componentKey, setComponentKey] = useState<number>(0);
const [cameraType, setCameraType] = useState<CameraType>('back');
const _toggleCameraType = () => {
setCameraType(cameraType === 'front' ? 'back' : 'front');
setComponentKey(componentKey + 1);
}
const ScanCamera = (): ReactElement => {
return <View style={styles.container}>
<View style={styles.container}>
<BarCodeScanner
type={cameraType}
onBarCodeScanned={props.onScanned}
style={styles.fullScreen}
/>
</View>
<View style={styles.centerMiddle}>
<View style={styles.captureBox}/>
</View>
<Text style={styles.subtitle}>
Hold your ID card up, with the barcode facing the camera. Keep the card in the green box.
</Text>
<View style={styles.centerMiddle}>
<Button
mode="contained"
color={colors.primary}
icon="camera-switch"
onPress={_toggleCameraType}
style={{marginVertical: 10}}
>Switch Camera</Button>
<Button
mode="text"
color={colors.primary}
icon="cancel"
onPress={props.onCancel}
style={styles.btnWhite}
>Cancel</Button>
</View>
</View>;
}
return <ScanCamera key={componentKey}/>;
};
export const ScanButton = (props: ButtonProps): ReactElement => {
return <Button
icon="camera"
mode="contained"
color={colors.accent}
onPress={props.onClicked}
style={styles.btnLg}
labelStyle={styles.btnLg}
>Scan Barcode</Button>;
};
export const InputIdButton = (props: ButtonProps): ReactElement => {
return <Button
icon="keyboard"
mode="text"
color={colors.onBackground}
onPress={props.onClicked}
>Enter ID Number Manually</Button>;
};
export const IdNumberInput = (props: ScannerProps): ReactElement => {
const [inputStr, setInputStr] = useState<string>('');
const pattern = /^[\d]{9}$/;
const hasErrors = () => {
return !pattern.test(inputStr);
};
const onSubmit = () => {
props.onScanned({type: '', data: inputStr});
}
return <View style={styles.settings}>
<Title style={styles.headingInverse}>Settings</Title>
<View style={{marginBottom: 10}}>
<Subheading style={{color: DefaultTheme.colors.text, marginBottom: 60}}>
Please double check that you have entered the number correctly. Entering an incorrect ID number will prevent
patients from receiving their test results.
</Subheading>
<TextInput
label="ID #"
value={inputStr}
onChangeText={inputStr => setInputStr(inputStr)}
mode="outlined"
theme={DefaultTheme}
/>
<HelperText type="error" visible={hasErrors()}>
ID number must be exactly 9 digits. No other characters are allowed.
</HelperText>
<Button
icon="check"
mode="contained"
color={colors.primary}
style={{marginBottom: 10}}
disabled={hasErrors()}
onPress={onSubmit}
>Submit</Button>
<Button
icon="cancel"
mode="outlined"
color={colors.primary}
onPress={props.onCancel}
>Cancel</Button>
</View>
</View>;
};