All files / components/Breadcrumb Breadcrumb.jsx

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import _ from 'lodash';
import React, { PropTypes } from 'react';
import { lucidClassNames } from '../../util/style-helpers';
import { createClass, findTypes, omitProps }  from '../../util/component-types';
import SeparatorIcon from '../Icon/SeparatorIcon/SeparatorIcon';
 
const cx = lucidClassNames.bind('&-Breadcrumb');
 
const {
	any,
	node,
} = PropTypes;
 
/**
 *
 * {"categories": ["navigation"], "madeFrom": ["SeparatorIcon"]}
 *
 * Navigation component to show a user's place in a navigation hierarchy and
 * provide links to return to higher points in the hierarchy
 *
 */
const Breadcrumb = createClass({
	displayName: 'Breadcrumb',
 
	components: {
		SeparatorIcon,
		/*
		 * Renders a `li`
		 */
		Item: createClass({
			displayName: 'Breadcrumb.Item',
			propTypes: {
				children: node,
			},
		}),
	},
 
	propTypes: {
		/**
		 * All children should be `Breadcrumb.Item`s. Others are ignored.
		 */
		children: node,
		/**
		 * Appended to the component-specific class names set on the root
		 * element. Value is run through the `classnames` library.
		 */
		className: any,
	},
 
	render() {
 
		const {
			className,
			...passThroughs,
		} = this.props;
 
		const items = findTypes(this.props, Breadcrumb.Item);
		const initialItems = _.initial(items);
		const lastItem = _.last(items);
 
		return (
			<nav
				{...omitProps(passThroughs, Breadcrumb)}
				className={cx('&', className)}
			>
				{!_.isEmpty(items) ? (
					<ul className={cx('&-List')}>
						{_.map(initialItems, ({ props, key }) => (
							<li
								{...props}
								key={key}
								className={cx('&-Item', props.className)}
							>
								{props.children}
								<SeparatorIcon className={cx('&-SeparatorIcon')} />
							</li>
						))}
						<li
							{...lastItem.props}
							key={lastItem.key}
							className={cx('&-Item', lastItem.props.className)}
						/>
					</ul>
				) : null}
			</nav>
		);
	},
});
 
export default Breadcrumb;