ant-design/components/radio/group.tsx

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import * as React from 'react';
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import classNames from 'classnames';
import useMergedState from 'rc-util/lib/hooks/useMergedState';
import pickAttrs from 'rc-util/lib/pickAttrs';
import { ConfigContext } from '../config-provider';
import useSize from '../config-provider/hooks/useSize';
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import { RadioGroupContextProvider } from './context';
import type { RadioChangeEvent, RadioGroupButtonStyle, RadioGroupProps } from './interface';
import Radio from './radio';
import useStyle from './style';
import useCSSVar from './style/cssVar';
import useCSSVarCls from '../config-provider/hooks/useCSSVarCls';
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const RadioGroup = React.forwardRef<HTMLDivElement, RadioGroupProps>((props, ref) => {
const { getPrefixCls, direction } = React.useContext(ConfigContext);
const [value, setValue] = useMergedState(props.defaultValue, {
value: props.value,
});
const onRadioChange = (ev: RadioChangeEvent) => {
const lastValue = value;
const val = ev.target.value;
if (!('value' in props)) {
setValue(val);
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}
const { onChange } = props;
if (onChange && val !== lastValue) {
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onChange(ev);
}
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};
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const {
prefixCls: customizePrefixCls,
className,
rootClassName,
options,
buttonStyle = 'outline' as RadioGroupButtonStyle,
disabled,
children,
size: customizeSize,
style,
id,
onMouseEnter,
onMouseLeave,
onFocus,
onBlur,
} = props;
const prefixCls = getPrefixCls('radio', customizePrefixCls);
const groupPrefixCls = `${prefixCls}-group`;
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// Style
const [, hashId] = useStyle(prefixCls);
const rootCls = useCSSVarCls(prefixCls);
const wrapCSSVar = useCSSVar(rootCls);
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let childrenToRender = children;
// 如果存在 options, 优先使用
if (options && options.length > 0) {
childrenToRender = options.map((option) => {
if (typeof option === 'string' || typeof option === 'number') {
// 此处类型自动推导为 string
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return (
<Radio
key={option.toString()}
prefixCls={prefixCls}
disabled={disabled}
value={option}
checked={value === option}
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>
{option}
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</Radio>
);
}
// 此处类型自动推导为 { label: string value: string }
return (
<Radio
key={`radio-group-value-options-${option.value}`}
prefixCls={prefixCls}
disabled={option.disabled || disabled}
value={option.value}
checked={value === option.value}
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title={option.title}
style={option.style}
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id={option.id}
>
{option.label}
</Radio>
);
});
}
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const mergedSize = useSize(customizeSize);
const classString = classNames(
groupPrefixCls,
`${groupPrefixCls}-${buttonStyle}`,
{
[`${groupPrefixCls}-${mergedSize}`]: mergedSize,
[`${groupPrefixCls}-rtl`]: direction === 'rtl',
},
className,
rootClassName,
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hashId,
rootCls,
);
return wrapCSSVar(
<div
{...pickAttrs(props, { aria: true, data: true })}
className={classString}
style={style}
onMouseEnter={onMouseEnter}
onMouseLeave={onMouseLeave}
onFocus={onFocus}
onBlur={onBlur}
id={id}
ref={ref}
>
<RadioGroupContextProvider
value={{
onChange: onRadioChange,
value,
disabled: props.disabled,
name: props.name,
optionType: props.optionType,
}}
>
{childrenToRender}
</RadioGroupContextProvider>
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</div>,
);
});
export default React.memo(RadioGroup);