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import React from 'react';
import cx from 'classnames';
import type { Node, Element, SyntheticEvent } from 'react';
import { LoadingDot } from './shared/Basic';
import s0 from './Button.module.css';
const { memo, forwardRef, useCallback } = React;
type ButtonProps = {
children?: Node,
label?: string,
text?: string,
isLoading?: boolean,
start?: Element | (() => Element),
onClick?: (SyntheticEvent<HTMLButtonElement>) => mixed,
kind?: 'primary' | 'minimal'
};
function Button(props: ButtonProps, ref) {
const { onClick, isLoading, kind = 'primary', ...restProps } = props;
const internalOnClick = useCallback(
e => {
if (isLoading) return;
onClick && onClick(e);
},
[isLoading, onClick]
);
const btnClassName = cx(s0.btn, {
[s0.minimal]: kind === 'minimal'
});
return (
<button className={btnClassName} ref={ref} onClick={internalOnClick}>
{isLoading ? (
<>
<span
style={{
display: 'inline-flex',
opacity: 0
}}
>
<ButtonInternal {...restProps} />
</span>
<span className={s0.loadingContainer}>
<LoadingDot />
</span>
</>
) : (
<ButtonInternal {...restProps} />
)}
</button>
);
}
function ButtonInternal({ children, label, text, start }) {
return (
<>
{start ? (
<span className={s0.btnStart}>
{typeof start === 'function' ? start() : start}
</span>
) : null}
{children || label || text}
</>
);
}
export default memo(forwardRef(Button));
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