/
DropdownToggle.tsx
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/
DropdownToggle.tsx
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import useMergedRefs from '@restart/hooks/useMergedRefs';
import DropdownContext from '@restart/ui/DropdownContext';
import { useDropdownToggle } from '@restart/ui/DropdownToggle';
import classNames from 'classnames';
import PropTypes from 'prop-types';
import * as React from 'react';
import { useContext } from 'react';
import Button, { ButtonProps, CommonButtonProps } from './Button';
import { BsPrefixRefForwardingComponent } from './helpers';
import { useBootstrapPrefix } from './ThemeProvider';
import useWrappedRefWithWarning from './useWrappedRefWithWarning';
export interface DropdownToggleProps extends Omit<ButtonProps, 'as'> {
as?: React.ElementType;
split?: boolean;
childBsPrefix?: string;
}
type DropdownToggleComponent = BsPrefixRefForwardingComponent<
'button',
DropdownToggleProps
>;
export type PropsFromToggle = Partial<
Pick<React.ComponentPropsWithRef<DropdownToggleComponent>, CommonButtonProps>
>;
const propTypes = {
/**
* @default 'dropdown-toggle'
*/
bsPrefix: PropTypes.string,
/**
* An html id attribute, necessary for assistive technologies, such as screen readers.
* @type {string|number}
*/
id: PropTypes.string,
split: PropTypes.bool,
as: PropTypes.elementType,
/**
* to passthrough to the underlying button or whatever from DropdownButton
* @private
*/
childBsPrefix: PropTypes.string,
};
const DropdownToggle: DropdownToggleComponent = React.forwardRef(
(
{
bsPrefix,
split,
className,
childBsPrefix,
// Need to define the default "as" during prop destructuring to be compatible with styled-components github.com/react-bootstrap/react-bootstrap/issues/3595
as: Component = Button,
...props
}: DropdownToggleProps,
ref,
) => {
const prefix = useBootstrapPrefix(bsPrefix, 'dropdown-toggle');
const dropdownContext = useContext(DropdownContext);
if (childBsPrefix !== undefined) {
(props as any).bsPrefix = childBsPrefix;
}
const [toggleProps] = useDropdownToggle();
toggleProps.ref = useMergedRefs(
toggleProps.ref,
useWrappedRefWithWarning(ref, 'DropdownToggle'),
);
// This intentionally forwards size and variant (if set) to the
// underlying component, to allow it to render size and style variants.
return (
<Component
className={classNames(
className,
prefix,
split && `${prefix}-split`,
dropdownContext?.show && 'show',
)}
{...toggleProps}
{...props}
/>
);
},
);
DropdownToggle.displayName = 'DropdownToggle';
DropdownToggle.propTypes = propTypes;
export default DropdownToggle;