import * as React from 'react' ; import { CSSTransition } from 'react-transition-group' ; import { useKey , useLockBodyScroll } from '../../hooks' ; import { Button } from '../Button' ; import { Heading } from '../typography' ; import { SidebarContainer , SidebarContent , SidebarFooter , TopBar , Backdrop } from './Sidebar.styles' ; type SidebarProps = { isOpen : boolean ; title : string ; onClose : ( ) => void ; footer ? : React . ReactNode ; } ; export const Sidebar = ( { children , footer , isOpen , title , onClose } ) => { useKey ( 'escape' , onClose ) ; useLockBodyScroll ( isOpen ) ; const contentRef = React . useRef ( null ) ; const backdropRef = React . useRef ( null ) ; return ( < > < CSSTransition in = { isOpen } timeout = { 300 } classNames = "sidebar" unmountOnExit nodeRef = { contentRef } > < SidebarContainer data - testid = "sidebar" ref = { contentRef } > < TopBar > < Heading level = { 4 } > { title } < /Heading> < Button aria - label = "close sidebar" data - testid = "sidebar-close-btn" onClick = { onClose } clear round icon = "cross" iconSize = { 16 } / > < /TopBar> < SidebarContent data - testid = "sidebar-content" > { children } < /SidebarContent> { footer && < SidebarFooter data - testid = "sidebar-footer" > { footer } < /SidebarFooter>} < /SidebarContainer> < /CSSTransition> < CSSTransition in = { isOpen } timeout = { 300 } classNames = "backdrop" unmountOnExit nodeRef = { backdropRef } > < Backdrop data - testid = "Sidebar-backdrop" onClick = { onClose } / > < /CSSTransition> < />); } ;