# Sidebar 12

> A sidebar with a calendar.

A shadcn/ui block from the [@tealmac](https://ui.tealmac.com/?utm_source=shadcn.exchange) registry, listed on [shadcn.exchange](https://shadcn.exchange/r/tealmac/sidebar-12).

- Page, with a live preview: https://shadcn.exchange/r/tealmac/sidebar-12
- Screenshot: https://shadcn.exchange/shot/tealmac/sidebar-12/light.png
- Registry item: https://ui.tealmac.com/r/sidebar-12.json
- Listed: 2026-11-01, source last changed 2026-11-01

## Install

```bash
npx shadcn@latest add https://shadcn.exchange/r/tealmac/sidebar-12.json
```

Run it in a project that has shadcn/ui set up. It adds the files below and installs what they depend on.

## Dependencies

- npm packages: `lucide-react`
- Registry items: `avatar`, `breadcrumb`, `calendar`, `collapsible`, `dropdown-menu`, `separator`, `sidebar`

## Files

### `registry/tealmac/sidebar-12.tsx`

```tsx
/**
 * Sidebar 12 - adapted for tealmac UI from the shadcn/ui block "sidebar-12"
 * (https://github.com/shadcn-ui/ui), MIT License, Copyright (c) 2023 shadcn.
 * The full licence text is in THIRD_PARTY_NOTICES.md. Changes: tealmac UI
 * import paths, one self-contained file, neutral demo content and no
 * third-party assets.
 */
"use client"

import * as React from "react"
import {
  BadgeCheck,
  Bell,
  Check,
  ChevronRight,
  ChevronsUpDown,
  CreditCard,
  LogOut,
  Plus,
  Sparkles,
} from "lucide-react"

import { Avatar, AvatarFallback, AvatarImage } from "@/components/ui/avatar"
import {
  Breadcrumb,
  BreadcrumbItem,
  BreadcrumbList,
  BreadcrumbPage,
} from "@/components/ui/breadcrumb"
import { Calendar } from "@/components/ui/calendar"
import {
  Collapsible,
  CollapsibleContent,
  CollapsibleTrigger,
} from "@/components/ui/collapsible"
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuGroup,
  DropdownMenuItem,
  DropdownMenuLabel,
  DropdownMenuSeparator,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu"
import { Separator } from "@/components/ui/separator"
import {
  Sidebar,
  SidebarContent,
  SidebarFooter,
  SidebarGroup,
  SidebarGroupContent,
  SidebarGroupLabel,
  SidebarHeader,
  SidebarInset,
  SidebarMenu,
  SidebarMenuButton,
  SidebarMenuItem,
  SidebarProvider,
  SidebarRail,
  SidebarSeparator,
  SidebarTrigger,
  useSidebar,
} from "@/components/ui/sidebar"

export function Calendars({
  calendars,
}: {
  calendars: {
    name: string
    items: string[]
  }[]
}) {
  return (
    <>
      {calendars.map((calendar, index) => (
        <React.Fragment key={calendar.name}>
          <SidebarGroup key={calendar.name} className="py-0">
            <Collapsible
              defaultOpen={index === 0}
              className="group/collapsible"
            >
              <SidebarGroupLabel
                asChild
                className="group/label text-sidebar-foreground hover:bg-sidebar-accent hover:text-sidebar-accent-foreground w-full text-sm"
              >
                <CollapsibleTrigger>
                  {calendar.name}{" "}
                  <ChevronRight className="ml-auto transition-transform group-data-[state=open]/collapsible:rotate-90 motion-reduce:transition-none" />
                </CollapsibleTrigger>
              </SidebarGroupLabel>
              <CollapsibleContent>
                <SidebarGroupContent>
                  <SidebarMenu>
                    {calendar.items.map((item, index) => (
                      <SidebarMenuItem key={item}>
                        <SidebarMenuButton>
                          <div
                            data-active={index < 2}
                            className="group/calendar-item border-sidebar-border text-sidebar-primary-foreground data-[active=true]:border-sidebar-primary data-[active=true]:bg-sidebar-primary flex aspect-square size-4 shrink-0 items-center justify-center rounded-sm border"
                          >
                            <Check className="hidden size-3 group-data-[active=true]/calendar-item:block" />
                          </div>
                          {item}
                        </SidebarMenuButton>
                      </SidebarMenuItem>
                    ))}
                  </SidebarMenu>
                </SidebarGroupContent>
              </CollapsibleContent>
            </Collapsible>
          </SidebarGroup>
          <SidebarSeparator className="mx-0" />
        </React.Fragment>
      ))}
    </>
  )
}

export function DatePicker() {
  return (
    <SidebarGroup className="px-0">
      <SidebarGroupContent>
        <Calendar className="[&_[role=gridcell].bg-accent]:bg-sidebar-primary [&_[role=gridcell].bg-accent]:text-sidebar-primary-foreground [&_[role=gridcell]]:w-[33px]" />
      </SidebarGroupContent>
    </SidebarGroup>
  )
}

export function NavUser({
  user,
}: {
  user: {
    name: string
    email: string
    avatar: string
  }
}) {
  const { isMobile } = useSidebar()

  return (
    <SidebarMenu>
      <SidebarMenuItem>
        <DropdownMenu>
          <DropdownMenuTrigger asChild>
            <SidebarMenuButton
              size="lg"
              className="data-[state=open]:bg-sidebar-accent data-[state=open]:text-sidebar-accent-foreground"
            >
              <Avatar className="h-8 w-8 rounded-lg">
                <AvatarImage src={user.avatar} alt={user.name} />
                <AvatarFallback className="rounded-lg">AM</AvatarFallback>
              </Avatar>
              <div className="grid flex-1 text-left text-sm leading-tight">
                <span className="truncate font-medium">{user.name}</span>
                <span className="truncate text-xs">{user.email}</span>
              </div>
              <ChevronsUpDown className="ml-auto size-4" />
            </SidebarMenuButton>
          </DropdownMenuTrigger>
          <DropdownMenuContent
            className="w-(--radix-dropdown-menu-trigger-width) min-w-56 rounded-lg"
            side={isMobile ? "bottom" : "right"}
            align="start"
            sideOffset={4}
          >
            <DropdownMenuLabel className="p-0 font-normal">
              <div className="flex items-center gap-2 px-1 py-1.5 text-left text-sm">
                <Avatar className="h-8 w-8 rounded-lg">
                  <AvatarImage src={user.avatar} alt={user.name} />
                  <AvatarFallback className="rounded-lg">AM</AvatarFallback>
                </Avatar>
                <div className="grid flex-1 text-left text-sm leading-tight">
                  <span className="truncate font-medium">{user.name}</span>
                  <span className="truncate text-xs">{user.email}</span>
                </div>
              </div>
            </DropdownMenuLabel>
            <DropdownMenuSeparator />
            <DropdownMenuGroup>
              <DropdownMenuItem>
                <Sparkles />
                Upgrade to Pro
              </DropdownMenuItem>
            </DropdownMenuGroup>
            <DropdownMenuSeparator />
            <DropdownMenuGroup>
              <DropdownMenuItem>
                <BadgeCheck />
                Account
              </DropdownMenuItem>
              <DropdownMenuItem>
                <CreditCard />
                Billing
              </DropdownMenuItem>
              <DropdownMenuItem>
                <Bell />
                Notifications
              </DropdownMenuItem>
            </DropdownMenuGroup>
            <DropdownMenuSeparator />
            <DropdownMenuItem>
              <LogOut />
              Log out
            </DropdownMenuItem>
          </DropdownMenuContent>
        </DropdownMenu>
      </SidebarMenuItem>
    </SidebarMenu>
  )
}

// This is sample data.
const data = {
  user: {
    name: "Alex Morgan",
    email: "m@example.com",
    avatar: "",
  },
  calendars: [
    {
      name: "My Calendars",
      items: ["Personal", "Work", "Family"],
    },
    {
      name: "Favorites",
      items: ["Holidays", "Birthdays"],
    },
    {
      name: "Other",
      items: ["Travel", "Reminders", "Deadlines"],
    },
  ],
}

export function AppSidebar({ ...props }: React.ComponentProps<typeof Sidebar>) {
  return (
    <Sidebar {...props}>
      <SidebarHeader className="border-sidebar-border h-16 border-b">
        <NavUser user={data.user} />
      </SidebarHeader>
      <SidebarContent>
        <DatePicker />
        <SidebarSeparator className="mx-0" />
        <Calendars calendars={data.calendars} />
      </SidebarContent>
      <SidebarFooter>
        <SidebarMenu>
          <SidebarMenuItem>
            <SidebarMenuButton>
              <Plus />
              <span>New Calendar</span>
            </SidebarMenuButton>
          </SidebarMenuItem>
        </SidebarMenu>
      </SidebarFooter>
      <SidebarRail />
    </Sidebar>
  )
}

export function Sidebar12() {
  return (
    <SidebarProvider>
      <AppSidebar />
      <SidebarInset>
        <header className="bg-background sticky top-0 flex h-16 shrink-0 items-center gap-2 border-b px-4">
          <SidebarTrigger className="-ml-1" />
          <Separator
            orientation="vertical"
            className="mr-2 data-[orientation=vertical]:h-4"
          />
          <Breadcrumb>
            <BreadcrumbList>
              <BreadcrumbItem>
                <BreadcrumbPage>October 2024</BreadcrumbPage>
              </BreadcrumbItem>
            </BreadcrumbList>
          </Breadcrumb>
        </header>
        <div className="flex flex-1 flex-col gap-4 p-4">
          <div className="grid auto-rows-min gap-4 md:grid-cols-5">
            {Array.from({ length: 20 }).map((_, i) => (
              <div key={i} className="bg-muted/50 aspect-square rounded-xl" />
            ))}
          </div>
        </div>
      </SidebarInset>
    </SidebarProvider>
  )
}
```