Barra laterale
Un pannello di navigazione pieghevole per dashboard, documenti e strumenti di amministrazione — con quel tocco neobrutalista fatto di bordi e ombre.
"use client"
import * as React from "react"Le barre laterali sono tra i componenti più complessi da realizzare. Sono al centro di qualsiasi applicazione e spesso contengono molte parti in movimento.
Ora abbiamo una base solida su cui costruire. Componibile. Adattabile ai temi. Personalizzabile.
Installazione#
pnpm dlx shadcn@latest add https://neobrutalism.com/r/base/sidebar.jsonnpx shadcn@latest add https://neobrutalism.com/r/base/sidebar.jsonyarn dlx shadcn@latest add https://neobrutalism.com/r/base/sidebar.jsonbunx --bun shadcn@latest add https://neobrutalism.com/r/base/sidebar.json
"use client"
import * as React from "react"
import { cva, type VariantProps } from "class-variance-authority"
import { PanelLeftIcon } from "lucide-react"
import { Slot } from "radix-ui"
import { cn } from "@/lib/utils"
import { useIsMobile } from "@/hooks/use-mobile"
import { Button } from "@/components/ui/button"
import { Input } from "@/components/ui/input"
import { Separator } from "@/components/ui/separator"
import {
Sheet,
SheetContent,
SheetDescription,
SheetHeader,
SheetTitle,
} from "@/components/ui/sheet"
import { Skeleton } from "@/components/ui/skeleton"
import {
Tooltip,
TooltipContent,
TooltipProvider,
TooltipTrigger,
} from "@/components/ui/tooltip"
const SIDEBAR_COOKIE_NAME = "sidebar_state"
const SIDEBAR_COOKIE_MAX_AGE = 60 * 60 * 24 * 7
const SIDEBAR_WIDTH = "16rem"
const SIDEBAR_WIDTH_MOBILE = "18rem"
const SIDEBAR_WIDTH_ICON = "3rem"
const SIDEBAR_KEYBOARD_SHORTCUT = "b"
type SidebarContextProps = {
state: "expanded" | "collapsed"
open: boolean
setOpen: (open: boolean) => void
openMobile: boolean
setOpenMobile: (open: boolean) => void
isMobile: boolean
toggleSidebar: () => void
}
const SidebarContext = React.createContext<SidebarContextProps | null>(null)
function useSidebar() {
const context = React.useContext(SidebarContext)
if (!context) {
throw new Error("useSidebar must be used within a SidebarProvider.")
}
return context
}
function SidebarProvider({
defaultOpen = true,
open: openProp,
onOpenChange: setOpenProp,
className,
style,
children,
...props
}: React.ComponentProps<"div"> & {
defaultOpen?: boolean
open?: boolean
onOpenChange?: (open: boolean) => void
}) {
const isMobile = useIsMobile()
const [openMobile, setOpenMobile] = React.useState(false)
// This is the internal state of the sidebar.
// We use openProp and setOpenProp for control from outside the component.
const [_open, _setOpen] = React.useState(defaultOpen)
const open = openProp ?? _open
const setOpen = React.useCallback(
(value: boolean | ((value: boolean) => boolean)) => {
const openState = typeof value === "function" ? value(open) : value
if (setOpenProp) {
setOpenProp(openState)
} else {
_setOpen(openState)
}
// This sets the cookie to keep the sidebar state.
document.cookie = `${SIDEBAR_COOKIE_NAME}=${openState}; path=/; max-age=${SIDEBAR_COOKIE_MAX_AGE}`
},
[setOpenProp, open]
)
// Helper to toggle the sidebar.
const toggleSidebar = React.useCallback(() => {
return isMobile ? setOpenMobile((open) => !open) : setOpen((open) => !open)
}, [isMobile, setOpen, setOpenMobile])
// Adds a keyboard shortcut to toggle the sidebar.
React.useEffect(() => {
const handleKeyDown = (event: KeyboardEvent) => {
if (
event.key === SIDEBAR_KEYBOARD_SHORTCUT &&
(event.metaKey || event.ctrlKey)
) {
event.preventDefault()
toggleSidebar()
}
}
window.addEventListener("keydown", handleKeyDown)
return () => window.removeEventListener("keydown", handleKeyDown)
}, [toggleSidebar])
// We add a state so that we can do data-state="expanded" or "collapsed".
// This makes it easier to style the sidebar with Tailwind classes.
const state = open ? "expanded" : "collapsed"
const contextValue = React.useMemo<SidebarContextProps>(
() => ({
state,
open,
setOpen,
isMobile,
openMobile,
setOpenMobile,
toggleSidebar,
}),
[state, open, setOpen, isMobile, openMobile, setOpenMobile, toggleSidebar]
)
return (
<SidebarContext.Provider value={contextValue}>
<TooltipProvider delayDuration={0}>
<div
data-slot="sidebar-wrapper"
style={
{
"--sidebar-width": SIDEBAR_WIDTH,
"--sidebar-width-icon": SIDEBAR_WIDTH_ICON,
...style,
} as React.CSSProperties
}
className={cn(
"group/sidebar-wrapper flex min-h-svh w-full has-data-[variant=inset]:bg-sidebar",
className
)}
{...props}
>
{children}
</div>
</TooltipProvider>
</SidebarContext.Provider>
)
}
function Sidebar({
side = "left",
variant = "sidebar",
collapsible = "offcanvas",
className,
children,
dir,
...props
}: React.ComponentProps<"div"> & {
side?: "left" | "right"
variant?: "sidebar" | "floating" | "inset"
collapsible?: "offcanvas" | "icon" | "none"
}) {
const { isMobile, state, openMobile, setOpenMobile } = useSidebar()
if (collapsible === "none") {
return (
<div
data-slot="sidebar"
className={cn(
"flex h-full w-(--sidebar-width) flex-col bg-sidebar text-sidebar-foreground",
className
)}
{...props}
>
{children}
</div>
)
}
if (isMobile) {
return (
<Sheet open={openMobile} onOpenChange={setOpenMobile} {...props}>
<SheetContent
dir={dir}
data-sidebar="sidebar"
data-slot="sidebar"
data-mobile="true"
className="w-(--sidebar-width) bg-sidebar p-0 text-sidebar-foreground [&>button]:hidden"
style={
{
"--sidebar-width": SIDEBAR_WIDTH_MOBILE,
} as React.CSSProperties
}
side={side}
>
<SheetHeader className="sr-only">
<SheetTitle>Sidebar</SheetTitle>
<SheetDescription>Displays the mobile sidebar.</SheetDescription>
</SheetHeader>
<div className="flex h-full w-full flex-col">{children}</div>
</SheetContent>
</Sheet>
)
}
return (
<div
className="group peer hidden text-sidebar-foreground md:block"
data-state={state}
data-collapsible={state === "collapsed" ? collapsible : ""}
data-variant={variant}
data-side={side}
data-slot="sidebar"
>
{/* This is what handles the sidebar gap on desktop */}
<div
data-slot="sidebar-gap"
className={cn(
"relative w-(--sidebar-width) bg-transparent transition-[width] duration-200 ease-linear",
"group-data-[collapsible=offcanvas]:w-0",
"group-data-[side=right]:rotate-180",
variant === "floating" || variant === "inset"
? "group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4)))]"
: "group-data-[collapsible=icon]:w-(--sidebar-width-icon)"
)}
/>
<div
data-slot="sidebar-container"
data-side={side}
className={cn(
"fixed inset-y-0 z-10 hidden h-svh w-(--sidebar-width) transition-[left,right,width] duration-200 ease-linear data-[side=left]:left-0 data-[side=left]:group-data-[collapsible=offcanvas]:left-[calc(var(--sidebar-width)*-1)] data-[side=right]:right-0 data-[side=right]:group-data-[collapsible=offcanvas]:right-[calc(var(--sidebar-width)*-1)] md:flex",
// Adjust the padding for floating and inset variants.
variant === "floating" || variant === "inset"
? "p-2 group-data-[collapsible=icon]:w-[calc(var(--sidebar-width-icon)+(--spacing(4))+2px)]"
: "group-data-[collapsible=icon]:w-(--sidebar-width-icon) group-data-[side=left]:border-r-2 group-data-[side=right]:border-l-2",
className
)}
{...props}
>
<div
data-sidebar="sidebar"
data-slot="sidebar-inner"
className="flex size-full flex-col bg-sidebar group-data-[variant=floating]:rounded-lg group-data-[variant=floating]:border-2 group-data-[variant=floating]:border-sidebar-border group-data-[variant=floating]:shadow-md"
>
{children}
</div>
</div>
</div>
)
}
function SidebarTrigger({
className,
onClick,
...props
}: React.ComponentProps<typeof Button>) {
const { toggleSidebar } = useSidebar()
return (
<Button
data-sidebar="trigger"
data-slot="sidebar-trigger"
variant="ghost"
size="icon-sm"
className={cn(className)}
onClick={(event) => {
onClick?.(event)
toggleSidebar()
}}
{...props}
>
<PanelLeftIcon className="cn-rtl-flip" />
<span className="sr-only">Toggle Sidebar</span>
</Button>
)
}
function SidebarRail({ className, ...props }: React.ComponentProps<"button">) {
const { toggleSidebar } = useSidebar()
return (
<button
data-sidebar="rail"
data-slot="sidebar-rail"
aria-label="Toggle Sidebar"
tabIndex={-1}
onClick={toggleSidebar}
title="Toggle Sidebar"
className={cn(
"absolute inset-y-0 z-20 hidden w-4 transition-all ease-linear group-data-[side=left]:-right-4 group-data-[side=right]:left-0 after:absolute after:inset-y-0 after:start-1/2 after:w-[2px] hover:after:bg-sidebar-border sm:flex ltr:-translate-x-1/2 rtl:-translate-x-1/2",
"in-data-[side=left]:cursor-w-resize in-data-[side=right]:cursor-e-resize",
"[[data-side=left][data-state=collapsed]_&]:cursor-e-resize [[data-side=right][data-state=collapsed]_&]:cursor-w-resize",
"group-data-[collapsible=offcanvas]:translate-x-0 group-data-[collapsible=offcanvas]:after:left-full hover:group-data-[collapsible=offcanvas]:bg-sidebar",
"[[data-side=left][data-collapsible=offcanvas]_&]:-right-2",
"[[data-side=right][data-collapsible=offcanvas]_&]:-left-2",
className
)}
{...props}
/>
)
}
function SidebarInset({ className, ...props }: React.ComponentProps<"main">) {
return (
<main
data-slot="sidebar-inset"
className={cn(
"relative flex w-full flex-1 flex-col bg-background md:peer-data-[variant=inset]:m-2 md:peer-data-[variant=inset]:ml-0 md:peer-data-[variant=inset]:rounded-xl md:peer-data-[variant=inset]:border-2 md:peer-data-[variant=inset]:border-border md:peer-data-[variant=inset]:shadow-md md:peer-data-[variant=inset]:peer-data-[state=collapsed]:ml-2",
className
)}
{...props}
/>
)
}
function SidebarInput({
className,
...props
}: React.ComponentProps<typeof Input>) {
return (
<Input
data-slot="sidebar-input"
data-sidebar="input"
className={cn("h-8 w-full bg-background shadow-none", className)}
{...props}
/>
)
}
function SidebarHeader({ className, ...props }: React.ComponentProps<"div">) {
return (
<div
data-slot="sidebar-header"
data-sidebar="header"
className={cn("flex flex-col gap-2 p-2", className)}
{...props}
/>
)
}
function SidebarFooter({ className, ...props }: React.ComponentProps<"div">) {
return (
<div
data-slot="sidebar-footer"
data-sidebar="footer"
className={cn("flex flex-col gap-2 p-2", className)}
{...props}
/>
)
}
function SidebarSeparator({
className,
...props
}: React.ComponentProps<typeof Separator>) {
return (
<Separator
data-slot="sidebar-separator"
data-sidebar="separator"
className={cn("mx-2 w-auto bg-sidebar-border", className)}
{...props}
/>
)
}
function SidebarContent({ className, ...props }: React.ComponentProps<"div">) {
return (
<div
data-slot="sidebar-content"
data-sidebar="content"
className={cn(
"no-scrollbar flex min-h-0 flex-1 flex-col gap-0 overflow-auto group-data-[collapsible=icon]:overflow-hidden",
className
)}
{...props}
/>
)
}
function SidebarGroup({ className, ...props }: React.ComponentProps<"div">) {
return (
<div
data-slot="sidebar-group"
data-sidebar="group"
className={cn("relative flex w-full min-w-0 flex-col p-2", className)}
{...props}
/>
)
}
function SidebarGroupLabel({
className,
asChild = false,
...props
}: React.ComponentProps<"div"> & { asChild?: boolean }) {
const Comp = asChild ? Slot.Root : "div"
return (
<Comp
data-slot="sidebar-group-label"
data-sidebar="group-label"
className={cn(
"flex h-8 shrink-0 items-center rounded px-2 font-head text-xs font-semibold tracking-wider text-sidebar-foreground/70 uppercase ring-sidebar-ring outline-hidden transition-[margin,opacity] duration-200 ease-linear group-data-[collapsible=icon]:-mt-8 group-data-[collapsible=icon]:opacity-0 focus-visible:ring-2 [&>svg]:size-4 [&>svg]:shrink-0",
className
)}
{...props}
/>
)
}
function SidebarGroupAction({
className,
asChild = false,
...props
}: React.ComponentProps<"button"> & { asChild?: boolean }) {
const Comp = asChild ? Slot.Root : "button"
return (
<Comp
data-slot="sidebar-group-action"
data-sidebar="group-action"
className={cn(
"absolute top-3.5 right-3 flex aspect-square w-5 items-center justify-center rounded border-2 border-transparent p-0 text-sidebar-foreground ring-sidebar-ring outline-hidden transition-transform group-data-[collapsible=icon]:hidden after:absolute after:-inset-2 hover:bg-accent hover:text-accent-foreground focus-visible:ring-2 md:after:hidden [&>svg]:size-4 [&>svg]:shrink-0",
className
)}
{...props}
/>
)
}
function SidebarGroupContent({
className,
...props
}: React.ComponentProps<"div">) {
return (
<div
data-slot="sidebar-group-content"
data-sidebar="group-content"
className={cn("w-full text-sm", className)}
{...props}
/>
)
}
function SidebarMenu({ className, ...props }: React.ComponentProps<"ul">) {
return (
<ul
data-slot="sidebar-menu"
data-sidebar="menu"
className={cn("flex w-full min-w-0 flex-col gap-0", className)}
{...props}
/>
)
}
function SidebarMenuItem({ className, ...props }: React.ComponentProps<"li">) {
return (
<li
data-slot="sidebar-menu-item"
data-sidebar="menu-item"
className={cn("group/menu-item relative", className)}
{...props}
/>
)
}
const sidebarMenuButtonVariants = cva(
"peer/menu-button group/menu-button flex w-full items-center gap-2 overflow-hidden rounded border-2 border-transparent p-2 text-left font-head text-sm ring-sidebar-ring outline-hidden transition-[width,height,padding] group-has-data-[sidebar=menu-action]/menu-item:pr-8 group-data-[collapsible=icon]:size-8! group-data-[collapsible=icon]:p-2! hover:bg-accent hover:text-accent-foreground focus-visible:ring-2 active:bg-accent active:text-accent-foreground disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-open:hover:bg-accent data-open:hover:text-accent-foreground data-active:border-border data-active:bg-primary data-active:font-medium data-active:text-primary-foreground data-active:shadow-md [&_svg]:size-4 [&_svg]:shrink-0 [&>span:last-child]:truncate",
{
variants: {
variant: {
default: "hover:bg-accent hover:text-accent-foreground",
outline:
"border-border bg-background shadow-md hover:bg-accent hover:text-accent-foreground hover:shadow-lg",
},
size: {
default: "h-8 text-sm",
sm: "h-7 text-xs",
lg: "h-12 text-sm group-data-[collapsible=icon]:p-0!",
},
},
defaultVariants: {
variant: "default",
size: "default",
},
}
)
function SidebarMenuButton({
asChild = false,
isActive = false,
variant = "default",
size = "default",
tooltip,
className,
...props
}: React.ComponentProps<"button"> & {
asChild?: boolean
isActive?: boolean
tooltip?: string | React.ComponentProps<typeof TooltipContent>
} & VariantProps<typeof sidebarMenuButtonVariants>) {
const Comp = asChild ? Slot.Root : "button"
const { isMobile, state } = useSidebar()
const button = (
<Comp
data-slot="sidebar-menu-button"
data-sidebar="menu-button"
data-size={size}
data-active={isActive}
className={cn(sidebarMenuButtonVariants({ variant, size }), className)}
{...props}
/>
)
if (!tooltip) {
return button
}
if (typeof tooltip === "string") {
tooltip = {
children: tooltip,
}
}
return (
<Tooltip>
<TooltipTrigger asChild>{button}</TooltipTrigger>
<TooltipContent
side="right"
align="center"
hidden={state !== "collapsed" || isMobile}
{...tooltip}
/>
</Tooltip>
)
}
function SidebarMenuAction({
className,
asChild = false,
showOnHover = false,
...props
}: React.ComponentProps<"button"> & {
asChild?: boolean
showOnHover?: boolean
}) {
const Comp = asChild ? Slot.Root : "button"
return (
<Comp
data-slot="sidebar-menu-action"
data-sidebar="menu-action"
className={cn(
"absolute top-1.5 right-1 flex aspect-square w-5 items-center justify-center rounded border-2 border-transparent p-0 text-sidebar-foreground ring-sidebar-ring outline-hidden transition-transform group-data-[collapsible=icon]:hidden peer-hover/menu-button:text-sidebar-accent-foreground peer-data-[size=default]/menu-button:top-1.5 peer-data-[size=lg]/menu-button:top-2.5 peer-data-[size=sm]/menu-button:top-1 after:absolute after:-inset-2 hover:bg-accent hover:text-accent-foreground focus-visible:ring-2 md:after:hidden [&>svg]:size-4 [&>svg]:shrink-0",
showOnHover &&
"group-focus-within/menu-item:opacity-100 group-hover/menu-item:opacity-100 peer-data-active/menu-button:text-sidebar-accent-foreground aria-expanded:opacity-100 md:opacity-0",
className
)}
{...props}
/>
)
}
function SidebarMenuBadge({
className,
...props
}: React.ComponentProps<"div">) {
return (
<div
data-slot="sidebar-menu-badge"
data-sidebar="menu-badge"
className={cn(
"pointer-events-none absolute right-1 flex h-5 min-w-5 items-center justify-center rounded border-2 border-border px-1 font-head text-xs font-medium text-sidebar-foreground tabular-nums select-none group-data-[collapsible=icon]:hidden peer-hover/menu-button:text-sidebar-accent-foreground peer-data-[size=default]/menu-button:top-1.5 peer-data-[size=lg]/menu-button:top-2.5 peer-data-[size=sm]/menu-button:top-1 peer-data-active/menu-button:text-sidebar-accent-foreground",
className
)}
{...props}
/>
)
}
function SidebarMenuSkeleton({
className,
showIcon = false,
...props
}: React.ComponentProps<"div"> & {
showIcon?: boolean
}) {
// Random width between 50 to 90%.
const [width] = React.useState(() => {
return `${Math.floor(Math.random() * 40) + 50}%`
})
return (
<div
data-slot="sidebar-menu-skeleton"
data-sidebar="menu-skeleton"
className={cn("flex h-8 items-center gap-2 rounded-md px-2", className)}
{...props}
>
{showIcon && (
<Skeleton
className="size-4 rounded-md"
data-sidebar="menu-skeleton-icon"
/>
)}
<Skeleton
className="h-4 max-w-(--skeleton-width) flex-1"
data-sidebar="menu-skeleton-text"
style={
{
"--skeleton-width": width,
} as React.CSSProperties
}
/>
</div>
)
}
function SidebarMenuSub({ className, ...props }: React.ComponentProps<"ul">) {
return (
<ul
data-slot="sidebar-menu-sub"
data-sidebar="menu-sub"
className={cn(
"mx-3.5 flex min-w-0 translate-x-px flex-col gap-1 border-l border-sidebar-border px-2.5 py-0.5 group-data-[collapsible=icon]:hidden",
className
)}
{...props}
/>
)
}
function SidebarMenuSubItem({
className,
...props
}: React.ComponentProps<"li">) {
return (
<li
data-slot="sidebar-menu-sub-item"
data-sidebar="menu-sub-item"
className={cn("group/menu-sub-item relative", className)}
{...props}
/>
)
}
function SidebarMenuSubButton({
asChild = false,
size = "md",
isActive = false,
className,
...props
}: React.ComponentProps<"a"> & {
asChild?: boolean
size?: "sm" | "md"
isActive?: boolean
}) {
const Comp = asChild ? Slot.Root : "a"
return (
<Comp
data-slot="sidebar-menu-sub-button"
data-sidebar="menu-sub-button"
data-size={size}
data-active={isActive}
className={cn(
"flex h-7 min-w-0 -translate-x-px items-center gap-2 overflow-hidden rounded border-2 border-transparent px-2 font-head text-sidebar-foreground ring-sidebar-ring outline-hidden group-data-[collapsible=icon]:hidden hover:bg-accent hover:text-accent-foreground focus-visible:ring-2 active:bg-accent active:text-accent-foreground disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-[size=md]:text-sm data-[size=sm]:text-xs data-active:border-border data-active:bg-primary data-active:text-primary-foreground data-active:shadow-md [&>span:last-child]:truncate [&>svg]:size-4 [&>svg]:shrink-0 [&>svg]:text-sidebar-accent-foreground",
className
)}
{...props}
/>
)
}
export {
Sidebar,
SidebarContent,
SidebarFooter,
SidebarGroup,
SidebarGroupAction,
SidebarGroupContent,
SidebarGroupLabel,
SidebarHeader,
SidebarInput,
SidebarInset,
SidebarMenu,
SidebarMenuAction,
SidebarMenuBadge,
SidebarMenuButton,
SidebarMenuItem,
SidebarMenuSkeleton,
SidebarMenuSub,
SidebarMenuSubButton,
SidebarMenuSubItem,
SidebarProvider,
SidebarRail,
SidebarSeparator,
SidebarTrigger,
useSidebar,
}
Utilizzo#
import { SidebarProvider, SidebarTrigger } from "@/components/ui/sidebar"
import { AppSidebar } from "@/components/app-sidebar"
export default function Layout({ children }: { children: React.ReactNode }) {
return (
<SidebarProvider>
<AppSidebar />
<main>
<SidebarTrigger />
{children}
</main>
</SidebarProvider>
)
}import {
Sidebar,
SidebarContent,
SidebarFooter,
SidebarGroup,
SidebarHeader,
} from "@/components/ui/sidebar"
export function AppSidebar() {
return (
<Sidebar>
<SidebarHeader />
<SidebarContent>
<SidebarGroup />
<SidebarGroup />
</SidebarContent>
<SidebarFooter />
</Sidebar>
)
}Composizione#
Usa la seguente composizione per costruire un layout Sidebar:
SidebarProvider
├── Sidebar
│ ├── SidebarHeader
│ ├── SidebarContent
│ │ ├── SidebarGroup
│ │ │ ├── SidebarGroupLabel
│ │ │ ├── SidebarGroupAction
│ │ │ ├── SidebarGroupContent
│ │ │ └── SidebarMenu
│ │ │ ├── SidebarMenuItem
│ │ │ │ ├── SidebarMenuButton
│ │ │ │ ├── SidebarMenuAction
│ │ │ │ └── SidebarMenuBadge
│ │ │ └── SidebarMenuItem
│ │ │ ├── SidebarMenuButton
│ │ │ └── SidebarMenuSub
│ │ │ ├── SidebarMenuSubItem
│ │ │ └── SidebarMenuSubItem
│ │ └── SidebarGroup
│ │ └── SidebarMenu
│ │ ├── SidebarMenuItem
│ │ └── SidebarMenuItem
│ ├── SidebarFooter
│ └── SidebarRail
├── SidebarInset
└── SidebarTriggerStruttura#
- SidebarProvider — Gestisce lo stato di comprimibilità e fornisce il contesto della barra laterale ai componenti figli.
- Sidebar — Il pannello principale della barra laterale, comprimibile.
- SidebarHeader — Fisso in alto; usalo per il branding, i titoli o i selettori di area di lavoro.
- SidebarFooter — Fisso in basso; usalo per i menu utente, le impostazioni o le azioni.
- SidebarContent — Area scorrevole tra l'header e il footer.
- SidebarGroup — Raggruppa la navigazione correlata con aree opzionali di etichetta, azione e contenuto.
- SidebarMenu / SidebarMenuItem — Struttura di menu per link, badge, azioni e sottomenu annidati.
- SidebarRail — Maniglia di ridimensionamento per regolare la larghezza della barra laterale quando applicabile.
- SidebarInset — Avvolge il contenuto principale quando usi la variante
inset. - SidebarTrigger — Controllo che alterna la barra laterale tra aperta e compressa.
SidebarProvider#
Il componente SidebarProvider serve a fornire il contesto della barra laterale al componente Sidebar. Dovresti sempre avvolgere l'applicazione in un componente SidebarProvider.
Props#
| Name | Type | Description |
|---|---|---|
defaultOpen | boolean | Stato aperto predefinito della barra laterale. |
open | boolean | Stato aperto della barra laterale (controllato). |
onOpenChange | (open: boolean) => void | Imposta lo stato aperto della barra laterale (controllato). |
Larghezza#
Se hai una sola barra laterale nell'applicazione, puoi usare le variabili SIDEBAR_WIDTH e SIDEBAR_WIDTH_MOBILE in sidebar.tsx per impostarne la larghezza.
const SIDEBAR_WIDTH = "16rem"
const SIDEBAR_WIDTH_MOBILE = "18rem"Per più barre laterali nell'applicazione, puoi usare le variabili CSS --sidebar-width e --sidebar-width-mobile nella prop style.
<SidebarProvider
style={
{
"--sidebar-width": "20rem",
"--sidebar-width-mobile": "20rem",
} as React.CSSProperties
}
>
<Sidebar />
</SidebarProvider>Scorciatoia da tastiera#
Per attivare la barra laterale, usa la scorciatoia da tastiera cmd+b su Mac e ctrl+b su Windows.
const SIDEBAR_KEYBOARD_SHORTCUT = "b"Sidebar#
Il componente Sidebar principale, usato per renderizzare una barra laterale comprimibile.
Props#
| Property | Type | Description |
|---|---|---|
side | left or right | Il lato della barra laterale. |
variant | sidebar, floating, or inset | La variante della barra laterale. |
collapsible | offcanvas, icon, or none | Stato di comprimibilità della barra laterale. |
| Prop | Description |
|---|---|
offcanvas | Una barra laterale comprimibile che scorre da sinistra o da destra. |
icon | Una barra laterale che si comprime in icone. |
none | Una barra laterale non comprimibile. |
Nota: se usi la variante inset, ricordati di avvolgere il contenuto
principale in un componente SidebarInset.
<SidebarProvider>
<Sidebar variant="inset" />
<SidebarInset>
<main>{children}</main>
</SidebarInset>
</SidebarProvider>useSidebar#
L'hook useSidebar serve a controllare la barra laterale.
import { useSidebar } from "@/components/ui/sidebar"
export function AppSidebar() {
const {
state,
open,
setOpen,
openMobile,
setOpenMobile,
isMobile,
toggleSidebar,
} = useSidebar()
}| Property | Type | Description |
|---|---|---|
state | expanded or collapsed | Lo stato attuale della barra laterale. |
open | boolean | Indica se la barra laterale è aperta. |
setOpen | (open: boolean) => void | Imposta lo stato aperto della barra laterale. |
openMobile | boolean | Indica se la barra laterale è aperta su mobile. |
setOpenMobile | (open: boolean) => void | Imposta lo stato aperto della barra laterale su mobile. |
isMobile | boolean | Indica se la barra laterale è su mobile. |
toggleSidebar | () => void | Alterna la barra laterale. Desktop e mobile. |
SidebarHeader#
Usa il componente SidebarHeader per aggiungere un header fisso alla barra laterale.
<Sidebar>
<SidebarHeader>
<SidebarMenu>
<SidebarMenuItem>
<DropdownMenu>
<DropdownMenuTrigger asChild>
<SidebarMenuButton>
Select Workspace
<ChevronDown className="ml-auto" />
</SidebarMenuButton>
</DropdownMenuTrigger>
<DropdownMenuContent className="w-[--radix-popper-anchor-width]">
<DropdownMenuItem>
<span>Acme Inc</span>
</DropdownMenuItem>
</DropdownMenuContent>
</DropdownMenu>
</SidebarMenuItem>
</SidebarMenu>
</SidebarHeader>
</Sidebar>SidebarFooter#
Usa il componente SidebarFooter per aggiungere un footer fisso alla barra laterale.
<Sidebar>
<SidebarFooter>
<SidebarMenu>
<SidebarMenuItem>
<SidebarMenuButton>
<User2 /> Username
</SidebarMenuButton>
</SidebarMenuItem>
</SidebarMenu>
</SidebarFooter>
</Sidebar>SidebarContent#
Il componente SidebarContent serve ad avvolgere il contenuto della barra laterale. È qui che aggiungi i tuoi componenti SidebarGroup. È scorrevole.
<Sidebar>
<SidebarContent>
<SidebarGroup />
<SidebarGroup />
</SidebarContent>
</Sidebar>SidebarGroup#
Usa il componente SidebarGroup per creare una sezione all'interno della barra laterale.
Un SidebarGroup ha un SidebarGroupLabel, un SidebarGroupContent e un SidebarGroupAction opzionale.
<SidebarGroup>
<SidebarGroupLabel>Application</SidebarGroupLabel>
<SidebarGroupAction>
<Plus /> <span className="sr-only">Add Project</span>
</SidebarGroupAction>
<SidebarGroupContent></SidebarGroupContent>
</SidebarGroup>Per rendere comprimibile un SidebarGroup, avvolgilo in un Collapsible.
<Collapsible defaultOpen className="group/collapsible">
<SidebarGroup>
<SidebarGroupLabel asChild>
<CollapsibleTrigger>
Help
<ChevronDown className="ml-auto transition-transform group-data-[state=open]/collapsible:rotate-180" />
</CollapsibleTrigger>
</SidebarGroupLabel>
<CollapsibleContent>
<SidebarGroupContent />
</CollapsibleContent>
</SidebarGroup>
</Collapsible>SidebarMenu#
Il componente SidebarMenu serve a costruire un menu all'interno di un SidebarGroup.
<SidebarMenu>
{projects.map((project) => (
<SidebarMenuItem key={project.name}>
<SidebarMenuButton asChild>
<a href={project.url}>
<project.icon />
<span>{project.name}</span>
</a>
</SidebarMenuButton>
</SidebarMenuItem>
))}
</SidebarMenu>SidebarMenuButton#
Il componente SidebarMenuButton serve a renderizzare un pulsante di menu all'interno di un SidebarMenuItem.
Per impostazione predefinita, il SidebarMenuButton renderizza un pulsante, ma puoi usare la prop asChild per renderizzare un componente diverso, come un Link o un tag a.
Usa la prop isActive per contrassegnare una voce di menu come attiva.
<SidebarMenuButton asChild isActive>
<a href="#">Home</a>
</SidebarMenuButton>SidebarMenuAction#
Il componente SidebarMenuAction serve a renderizzare un'azione di menu all'interno di un SidebarMenuItem.
<SidebarMenuItem>
<SidebarMenuButton asChild>
<a href="#">
<Home />
<span>Home</span>
</a>
</SidebarMenuButton>
<SidebarMenuAction>
<Plus /> <span className="sr-only">Add Project</span>
</SidebarMenuAction>
</SidebarMenuItem>SidebarMenuSub#
Il componente SidebarMenuSub serve a renderizzare un sottomenu all'interno di un SidebarMenu.
<SidebarMenuItem>
<SidebarMenuButton />
<SidebarMenuSub>
<SidebarMenuSubItem>
<SidebarMenuSubButton />
</SidebarMenuSubItem>
</SidebarMenuSub>
</SidebarMenuItem>SidebarMenuBadge#
Il componente SidebarMenuBadge serve a renderizzare un badge all'interno di un SidebarMenuItem.
<SidebarMenuItem>
<SidebarMenuButton />
<SidebarMenuBadge>24</SidebarMenuBadge>
</SidebarMenuItem>SidebarMenuSkeleton#
Il componente SidebarMenuSkeleton serve a renderizzare uno skeleton per un SidebarMenu.
<SidebarMenu>
{Array.from({ length: 5 }).map((_, index) => (
<SidebarMenuItem key={index}>
<SidebarMenuSkeleton />
</SidebarMenuItem>
))}
</SidebarMenu>SidebarTrigger#
Usa il componente SidebarTrigger per renderizzare un pulsante che alterna la barra laterale.
import { useSidebar } from "@/components/ui/sidebar"
export function CustomTrigger() {
const { toggleSidebar } = useSidebar()
return <button onClick={toggleSidebar}>Toggle Sidebar</button>
}SidebarRail#
Il componente SidebarRail serve a renderizzare una rail all'interno di un Sidebar. Questa rail può essere usata per alternare la barra laterale.
<Sidebar>
<SidebarHeader />
<SidebarContent>
<SidebarGroup />
</SidebarContent>
<SidebarFooter />
<SidebarRail />
</Sidebar>Barra laterale controllata#
Usa le prop open e onOpenChange per controllare la barra laterale.
export function AppSidebar() {
const [open, setOpen] = React.useState(false)
return (
<SidebarProvider open={open} onOpenChange={setOpen}>
<Sidebar />
</SidebarProvider>
)
}Temi#
Usiamo le seguenti variabili CSS per applicare il tema alla barra laterale.
@layer base {
:root {
--sidebar-background: 0 0% 98%;
--sidebar-foreground: 240 5.3% 26.1%;
--sidebar-primary: 240 5.9% 10%;
--sidebar-primary-foreground: 0 0% 98%;
--sidebar-accent: 240 4.8% 95.9%;
--sidebar-accent-foreground: 240 5.9% 10%;
--sidebar-border: 220 13% 91%;
--sidebar-ring: 217.2 91.2% 59.8%;
}
.dark {
--sidebar-background: 240 5.9% 10%;
--sidebar-foreground: 240 4.8% 95.9%;
--sidebar-primary: 0 0% 98%;
--sidebar-primary-foreground: 240 5.9% 10%;
--sidebar-accent: 240 3.7% 15.9%;
--sidebar-accent-foreground: 240 4.8% 95.9%;
--sidebar-border: 240 3.7% 15.9%;
--sidebar-ring: 217.2 91.2% 59.8%;
}
}Stili#
Ecco alcuni consigli per applicare stili alla barra laterale in base ai diversi stati.
<Sidebar collapsible="icon">
<SidebarContent>
<SidebarGroup className="group-data-[collapsible=icon]:hidden" />
</SidebarContent>
</Sidebar><SidebarMenuItem>
<SidebarMenuButton />
<SidebarMenuAction className="peer-data-[active=true]/menu-button:opacity-100" />
</SidebarMenuItem>RTL#
Per abilitare il supporto RTL in Neobrutalism, consulta la guida alla configurazione RTL.
"use client"
import * as React from "react"Registro delle modifiche#
Supporto RTL#
Se stai aggiornando da una versione precedente del componente Sidebar, dovrai applicare i seguenti aggiornamenti per aggiungere il supporto RTL:
Aggiungi la prop dir al componente Sidebar.
Aggiungi dir alle prop destrutturate e passalo a SheetContent per la vista mobile:
function Sidebar({
side = "left",
variant = "sidebar",
collapsible = "offcanvas",
className,
children,
+ dir,
...props
}: React.ComponentProps<"div"> & {
side?: "left" | "right"
variant?: "sidebar" | "floating" | "inset"
collapsible?: "offcanvas" | "icon" | "none"
}) {Poi passalo a SheetContent nella vista mobile:
<Sheet open={openMobile} onOpenChange={setOpenMobile} {...props}>
<SheetContent
+ dir={dir}
data-sidebar="sidebar"
data-slot="sidebar"
data-mobile="true"Aggiungi l'attributo data-side al contenitore della barra laterale.
Aggiungi data-side={side} all'elemento contenitore della barra laterale:
<div
data-slot="sidebar-container"
+ data-side={side}
className={cn(Aggiorna le classi di posizionamento del contenitore della barra laterale.
Sostituisci le classi condizionali ternarie di JavaScript con selettori di attributi dati CSS:
className={cn(
- "fixed inset-y-0 z-10 hidden h-svh w-(--sidebar-width) transition-[left,right,width] duration-200 ease-linear md:flex",
- side === "left"
- ? "left-0 group-data-[collapsible=offcanvas]:left-[calc(var(--sidebar-width)*-1)]"
- : "right-0 group-data-[collapsible=offcanvas]:right-[calc(var(--sidebar-width)*-1)]",
+ "fixed inset-y-0 z-10 hidden h-svh w-(--sidebar-width) transition-[left,right,width] duration-200 ease-linear md:flex data-[side=left]:left-0 data-[side=right]:right-0 data-[side=left]:group-data-[collapsible=offcanvas]:left-[calc(var(--sidebar-width)*-1)] data-[side=right]:group-data-[collapsible=offcanvas]:right-[calc(var(--sidebar-width)*-1)]",Aggiorna le classi di posizionamento di SidebarRail.
Aggiorna il componente SidebarRail per usare un posizionamento fisico della rail:
className={cn(
- "hover:after:bg-sidebar-border absolute inset-y-0 z-20 hidden w-4 -translate-x-1/2 transition-all ease-linear group-data-[side=left]:-end-4 group-data-[side=right]:start-0 after:absolute after:inset-y-0 after:start-1/2 after:w-[2px] sm:flex",
+ "hover:after:bg-sidebar-border absolute inset-y-0 z-20 hidden w-4 ltr:-translate-x-1/2 rtl:-translate-x-1/2 transition-all ease-linear group-data-[side=left]:-right-4 group-data-[side=right]:left-0 after:absolute after:inset-y-0 after:start-1/2 after:w-[2px] sm:flex",Aggiungi il capovolgimento RTL all'icona di SidebarTrigger.
Aggiungi className="rtl:rotate-180" all'icona in SidebarTrigger per capovolgerla in modalità RTL:
<Button ...>
- <PanelLeftIcon />
+ <PanelLeftIcon className="rtl:rotate-180" />
<span className="sr-only">Toggle Sidebar</span>
</Button>Dopo aver applicato queste modifiche, puoi usare la prop dir per impostare la direzione:
<Sidebar dir="rtl" side="right">
{/* ... */}
</Sidebar>La barra laterale si posizionerà correttamente e gestirà le interazioni sia nei layout LTR che RTL.
Accessibilità#
Non esiste un unico pattern WAI-ARIA per la sidebar di un’app — il menu è fatto di semplici pulsanti e link navigati con Tab, non è un menu ARIA, quindi il roving con i tasti freccia non si applica. Su mobile la sidebar viene resa dentro uno Sheet, una finestra di dialogo modale secondo il pattern WAI-ARIA Dialog (Modal): il focus è intrappolato, Escape la chiude e un titolo e una descrizione nascosti visivamente la annunciano agli screen reader. SidebarTrigger include di serie aria-label="Toggle Sidebar"; i controlli di sola icona come SidebarGroupAction e SidebarMenuAction hanno bisogno di etichette sr-only proprie — gli esempi qui sopra le includono.
Interazioni da tastiera:
| Tasto | Azione |
|---|---|
Cmd + B / Ctrl + B | Apre o chiude la sidebar (modificabile tramite SIDEBAR_KEYBOARD_SHORTCUT) |
Tab / Shift + Tab | Sposta il focus tra trigger, pulsanti del menu e azioni |
Enter / Space | Attiva il pulsante di menu o l’azione con il focus |
Escape | Chiude la sidebar mobile (Sheet modale) |