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index.tsx
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index.tsx
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import * as React from 'react';
import PropTypes from 'prop-types';
import {Box, safelySpreadBoxProps} from '@twilio-paste/box';
import type {BoxProps, BoxElementProps} from '@twilio-paste/box';
import {Anchor} from '@twilio-paste/anchor';
import type {AnchorProps} from '@twilio-paste/anchor';
import {Text, safelySpreadTextProps} from '@twilio-paste/text';
import {useUIDSeed} from '@twilio-paste/uid-library';
import type {HTMLPasteProps} from '@twilio-paste/types';
const BreadcrumbSeparator: React.FC<React.PropsWithChildren<{element: BoxElementProps['element']}>> = ({element}) => (
<Text
as="span"
color="colorTextWeak"
fontSize="fontSize20"
lineHeight="lineHeight20"
paddingLeft="space20"
paddingRight="space20"
role="presentation"
element={`${element}_SEPARATOR`}
>
/
</Text>
);
BreadcrumbSeparator.displayName = 'BreadcrumbSeparator';
type BreadcrumbItemBaseProps = Pick<BoxProps, 'element'> & {
children: NonNullable<React.ReactNode>;
parentElement?: BoxElementProps['element'];
last?: boolean;
};
type BreadcrumbItemAsSpanProps = HTMLPasteProps<'span'> &
BreadcrumbItemBaseProps & {
href?: never;
};
type BreadcrumbItemAsAnchorProps = AnchorProps & BreadcrumbItemBaseProps;
type BreadcrumbItemProps = BreadcrumbItemAsSpanProps | BreadcrumbItemAsAnchorProps;
const DEFAULT_ELEMENT_NAME = 'BREADCRUMB';
const BreadcrumbItem = React.forwardRef<HTMLSpanElement | HTMLAnchorElement, BreadcrumbItemProps>(
({children, element, parentElement, href, last, ...props}, ref) => {
const elementName = element || parentElement || DEFAULT_ELEMENT_NAME;
return (
<Box
alignItems="center"
as="li"
display="inline-flex"
element={`${elementName}_ITEM`}
fontSize="fontSize20"
lineHeight="lineHeight20"
>
{href ? (
<Anchor
{...(props as Partial<BreadcrumbItemAsAnchorProps>)}
element={`${elementName}_ANCHOR`}
href={href}
ref={ref as React.ForwardedRef<HTMLAnchorElement>}
>
{children}
</Anchor>
) : (
<Text
{...safelySpreadTextProps(props)}
aria-current="page"
as="span"
color="colorTextWeak"
element={`${elementName}_TEXT`}
fontSize="fontSize20"
lineHeight="lineHeight20"
ref={ref}
>
{children}
</Text>
)}
{!last && <BreadcrumbSeparator element={elementName} />}
</Box>
);
}
);
BreadcrumbItem.displayName = 'BreadcrumbItem';
if (process.env.NODE_ENV === 'development') {
BreadcrumbItem.propTypes = {
children: PropTypes.node.isRequired,
element: PropTypes.string,
href: PropTypes.string as PropTypes.Validator<string>,
last: PropTypes.bool,
};
}
export interface BreadcrumbProps extends HTMLPasteProps<'nav'> {
children: NonNullable<React.ReactNode>;
element?: BoxElementProps['element'];
}
const Breadcrumb = React.forwardRef<HTMLDivElement, BreadcrumbProps>(
({children, element = DEFAULT_ELEMENT_NAME, ...props}, ref) => {
const [childrenCount, validChildren] = React.useMemo(
() => [
React.Children.count(children),
React.Children.toArray(children).filter((child) => React.isValidElement(child) || typeof child === 'string'),
],
[children]
);
const keySeed = useUIDSeed();
return (
<Box aria-label="breadcrumb" {...safelySpreadBoxProps(props)} as="nav" element={element} ref={ref}>
<Box alignItems="center" as="ol" display="inline-flex" listStyleType="none" margin="space0" padding="space0">
{validChildren.map((child, index) => {
return React.cloneElement(child as React.ReactElement<any>, {
last: childrenCount === index + 1,
key: keySeed(`breadcrumb-${index}`),
parentElement: element,
});
})}
</Box>
</Box>
);
}
);
Breadcrumb.displayName = 'Breadcrumb';
Breadcrumb.propTypes = {
children: PropTypes.node.isRequired,
element: PropTypes.string,
};
export {Breadcrumb, BreadcrumbItem};