@wordpress/edit-post/src/components/header/fullscreen-mode-close/index.js

Edit Post module for WordPress.

/**
 * External dependencies
 */
import { get } from 'lodash';

/**
 * WordPress dependencies
 */
import { withSelect } from '@wordpress/data';
import { IconButton, Toolbar } from '@wordpress/components';
import { __ } from '@wordpress/i18n';
import { addQueryArgs } from '@wordpress/url';

function FullscreenModeClose( { isActive, postType } ) {
	if ( ! isActive || ! postType ) {
		return null;
	}

	return (
		<Toolbar className="edit-post-fullscreen-mode-close__toolbar">
			<IconButton
				icon="arrow-left-alt2"
				href={ addQueryArgs( 'edit.php', { post_type: postType.slug } ) }
				label={ get(
					postType,
					[ 'labels', 'view_items' ],
					__( 'Back' )
				) }
			/>
		</Toolbar>
	);
}

export default withSelect( ( select ) => {
	const { getCurrentPostType } = select( 'core/editor' );
	const { isFeatureActive } = select( 'core/edit-post' );
	const { getPostType } = select( 'core' );

	return {
		isActive: isFeatureActive( 'fullscreenMode' ),
		postType: getPostType( getCurrentPostType() ),
	};
} )( FullscreenModeClose );