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2.2 KiB
2.2 KiB
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zh-CN
结合 Tooltip 组件,实现一个数值输入框,方便内容超长时的全量展现。
en-US
You can use the Input in conjunction with Tooltip component to create a Numeric Input, which can provide a good experience for extra-long content display.
import { Input, Tooltip } from 'antd';
import React, { useState } from 'react';
interface NumericInputProps {
style: React.CSSProperties;
value: string;
onChange: (value: string) => void;
}
const formatNumber = (value: number) => new Intl.NumberFormat().format(value);
const NumericInput = (props: NumericInputProps) => {
const { value, onChange } = props;
const handleChange = (e: React.ChangeEvent<HTMLInputElement>) => {
const { value: inputValue } = e.target;
const reg = /^-?\d*(\.\d*)?$/;
if (reg.test(inputValue) || inputValue === '' || inputValue === '-') {
onChange(inputValue);
}
};
// '.' at the end or only '-' in the input box.
const handleBlur = () => {
let valueTemp = value;
if (value.charAt(value.length - 1) === '.' || value === '-') {
valueTemp = value.slice(0, -1);
}
onChange(valueTemp.replace(/0*(\d+)/, '$1'));
};
const title = value ? (
<span className="numeric-input-title">{value !== '-' ? formatNumber(Number(value)) : '-'}</span>
) : (
'Input a number'
);
return (
<Tooltip trigger={['focus']} title={title} placement="topLeft" overlayClassName="numeric-input">
<Input
{...props}
onChange={handleChange}
onBlur={handleBlur}
placeholder="Input a number"
maxLength={25}
/>
</Tooltip>
);
};
const App: React.FC = () => {
const [value, setValue] = useState('');
return <NumericInput style={{ width: 120 }} value={value} onChange={setValue} />;
};
export default App;
/* to prevent the arrow overflow the popup container,
or the height is not enough when content is empty */
.numeric-input .ant-tooltip-inner {
min-width: 32px;
min-height: 37px;
}
.numeric-input .numeric-input-title {
font-size: 14px;
}