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import React, { useState } from 'react';
import { Button, Form, Input, Select } from 'antd';
const { Option } = Select;
type Currency = 'rmb' | 'dollar';
interface PriceValue {
number?: number;
currency?: Currency;
}
interface PriceInputProps {
id?: string;
value?: PriceValue;
onChange?: (value: PriceValue) => void;
}
const PriceInput: React.FC<PriceInputProps> = (props) => {
const { id, value = {}, onChange } = props;
const [number, setNumber] = useState(0);
const [currency, setCurrency] = useState<Currency>('rmb');
const triggerChange = (changedValue: { number?: number; currency?: Currency }) => {
onChange?.({ number, currency, ...value, ...changedValue });
};
const onNumberChange = (e: React.ChangeEvent<HTMLInputElement>) => {
const newNumber = parseInt(e.target.value || '0', 10);
if (Number.isNaN(number)) {
return;
}
if (!('number' in value)) {
setNumber(newNumber);
}
triggerChange({ number: newNumber });
};
const onCurrencyChange = (newCurrency: Currency) => {
if (!('currency' in value)) {
setCurrency(newCurrency);
}
triggerChange({ currency: newCurrency });
};
return (
<span id={id}>
<Input
type="text"
value={value.number || number}
onChange={onNumberChange}
style={{ width: 100 }}
/>
<Select
value={value.currency || currency}
style={{ width: 80, margin: '0 8px' }}
onChange={onCurrencyChange}
>
<Option value="rmb">RMB</Option>
<Option value="dollar">Dollar</Option>
</Select>
</span>
);
};
const App: React.FC = () => {
const onFinish = (values: any) => {
console.log('Received values from form: ', values);
};
const checkPrice = (_: any, value: { number: number }) => {
if (value.number > 0) {
return Promise.resolve();
}
return Promise.reject(new Error('Price must be greater than zero!'));
};
return (
<Form
name="customized_form_controls"
layout="inline"
onFinish={onFinish}
initialValues={{
price: {
number: 0,
currency: 'rmb',
},
}}
>
<Form.Item name="price" label="Price" rules={[{ validator: checkPrice }]}>
<PriceInput />
</Form.Item>
<Form.Item>
<Button type="primary" htmlType="submit">
Submit
</Button>
</Form.Item>
</Form>
);
};
export default App;
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