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mastodon/app/javascript/mastodon/components/dropdown/index.tsx
2025-08-14 15:04:32 +00:00

115 lines
2.7 KiB
TypeScript

import { useCallback, useId, useMemo, useRef, useState } from 'react';
import type { ComponentPropsWithoutRef, FC } from 'react';
import { FormattedMessage } from 'react-intl';
import type { MessageDescriptor } from 'react-intl';
import classNames from 'classnames';
import Overlay from 'react-overlays/Overlay';
import type { SelectItem } from '../dropdown_selector';
import { DropdownSelector } from '../dropdown_selector';
interface DropdownProps {
title: string;
disabled?: boolean;
items: SelectItem[];
onChange: (value: string) => void;
current: string;
emptyText?: MessageDescriptor;
classPrefix: string;
}
export const Dropdown: FC<
DropdownProps & Omit<ComponentPropsWithoutRef<'button'>, keyof DropdownProps>
> = ({
title,
disabled,
items,
current,
onChange,
classPrefix,
className,
...buttonProps
}) => {
const buttonRef = useRef<HTMLButtonElement>(null);
const accessibilityId = useId();
const [open, setOpen] = useState(false);
const handleToggle = useCallback(() => {
if (!disabled) {
setOpen((prevOpen) => !prevOpen);
}
}, [disabled]);
const handleClose = useCallback(() => {
setOpen(false);
}, []);
const currentText = useMemo(
() => items.find((i) => i.value === current)?.text,
[current, items],
);
return (
<>
<button
type='button'
{...buttonProps}
title={title}
aria-expanded={open}
aria-controls={accessibilityId}
onClick={handleToggle}
disabled={disabled}
className={classNames(
`${classPrefix}__button`,
{
active: open,
disabled,
},
className,
)}
ref={buttonRef}
>
{currentText ?? (
<FormattedMessage
id='dropdown.empty'
defaultMessage='Select an option'
/>
)}
</button>
<Overlay
show={open}
offset={[0, 4]}
placement='bottom-start'
onHide={handleClose}
flip
target={buttonRef.current}
popperConfig={{
strategy: 'fixed',
}}
>
{({ props, placement }) => (
<div {...props} className={`${classPrefix}__overlay`}>
<div
className={classNames(
'dropdown-animation',
`${classPrefix}__dropdown`,
placement,
)}
id={accessibilityId}
>
<DropdownSelector
items={items}
value={current}
onClose={handleClose}
onChange={onChange}
classNamePrefix={classPrefix}
/>
</div>
</div>
)}
</Overlay>
</>
);
};