Estado vacío — logic2b/ui

No messages yet

When you receive a message, it will show up here.

import { InboxIcon } from "lucide-react"

import { Button } from "@/components/ui/button"
import {
  Empty,
  EmptyContent,
  EmptyDescription,
  EmptyHeader,
  EmptyMedia,
  EmptyTitle,
} from "@/components/ui/empty"

export default function EmptyDemo() {
  return (
    <Empty className="border">
      <EmptyHeader>
        <EmptyMedia variant="icon">
          <InboxIcon />
        </EmptyMedia>
        <EmptyTitle>No messages yet</EmptyTitle>
        <EmptyDescription>
          When you receive a message, it will show up here.
        </EmptyDescription>
      </EmptyHeader>
      <EmptyContent>
        <Button size="sm">Compose message</Button>
      </EmptyContent>
    </Empty>
  )
}

Instalación

npx logic2b@next add empty

¿Trabajas con un asistente de IA? Copia este prompt en Claude Code, Cursor o Copilot: incluye los pasos de instalación, una alternativa sin CLI y una lista de verificación.

Add the "empty" item from the logic2b ui registry (https://ui.logic2b.com) to this project. Follow every step and verify at the end.

## Steps

1. If the project has no `components.json` yet, set up logic2b ui first:

   ```bash
   npx logic2b@next init
   ```

2. Install the item (the CLI resolves registry dependencies automatically):

   ```bash
   npx logic2b@next add empty
   ```

3. Install any npm dependencies the command prints.

## If the CLI is not available

Do it manually from the registry payload:

1. Fetch https://ui.logic2b.com/r/empty.json.
2. Write every entry in `files[]` to its mapped project path (see below).
3. Repeat (recursively) for each name in `registryDependencies`.
4. Install every package listed in `dependencies` across those payloads.

## Registry reference

- Index of every item: https://ui.logic2b.com/r/index.json
- Item payload (full source): https://ui.logic2b.com/r/<name>.json
- Usage examples per item: https://ui.logic2b.com/r/demos/index.json → https://ui.logic2b.com/r/demos/<demo>.json
- Docs index for agents: https://ui.logic2b.com/llms.txt (full docs: https://ui.logic2b.com/llms-full.txt)
- Every docs page is Markdown when you append `.md` to its URL.

Registry file paths map to project paths like this:
- `ui/*` → `@/components/ui/*`
- `blocks/<name>/*` → `@/components/*`
- `charts/*` → `@/components/charts/*`
- `hooks/*` → `@/hooks/*`
- `lib/utils.ts` → `@/lib/utils.ts`
- `theme.css` → next to the project's Tailwind entry stylesheet

## Conventions (do not break these)

- Tailwind CSS v4 (CSS-first config; no tailwind.config.js needed) and React 19.
- All colors go through semantic tokens (`bg-primary`, `text-muted-foreground`,
  `border-border`, …). Never hardcode hex/oklch values in components.
- Dark mode is class-based: toggle `.dark` on `<html>`.
- Icons come from lucide-react.

## Verify before finishing

1. The dev server starts and the app renders without console errors.
2. TypeScript compiles (`tsc --noEmit` or the framework's check).
3. Components use the theme: a `<Button>` shows the primary token color,
   and toggling `.dark` on `<html>` switches the palette.

Instala las dependencias:

npm install class-variance-authority

Copia el contenido en ui/empty.tsx:

import * as React from "react"
import { cva, type VariantProps } from "class-variance-authority"

import { cn } from "@/lib/utils"

function Empty({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="empty"
      className={cn(
        "flex min-w-0 flex-1 flex-col items-center justify-center gap-6 rounded-lg border-dashed p-6 text-center text-balance md:p-12",
        className
      )}
      {...props}
    />
  )
}

function EmptyHeader({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="empty-header"
      className={cn(
        "flex max-w-sm flex-col items-center gap-2 text-center",
        className
      )}
      {...props}
    />
  )
}

const emptyMediaVariants = cva(
  "mb-2 flex shrink-0 items-center justify-center [&_svg:not([class*='size-'])]:size-6 [&_svg]:pointer-events-none",
  {
    variants: {
      variant: {
        default: "bg-transparent",
        icon: "bg-muted text-foreground flex size-10 shrink-0 items-center justify-center rounded-lg [&_svg:not([class*='size-'])]:size-6",
      },
    },
    defaultVariants: {
      variant: "default",
    },
  }
)

function EmptyMedia({
  className,
  variant = "default",
  ...props
}: React.ComponentProps<"div"> & VariantProps<typeof emptyMediaVariants>) {
  return (
    <div
      data-slot="empty-media"
      data-variant={variant}
      className={cn(emptyMediaVariants({ variant, className }))}
      {...props}
    />
  )
}

function EmptyTitle({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="empty-title"
      className={cn("text-lg font-medium tracking-tight", className)}
      {...props}
    />
  )
}

function EmptyDescription({ className, ...props }: React.ComponentProps<"p">) {
  return (
    <p
      data-slot="empty-description"
      className={cn(
        "text-muted-foreground [&>a:hover]:text-primary text-sm/relaxed [&>a]:underline [&>a]:underline-offset-4",
        className
      )}
      {...props}
    />
  )
}

function EmptyContent({ className, ...props }: React.ComponentProps<"div">) {
  return (
    <div
      data-slot="empty-content"
      className={cn(
        "flex w-full max-w-sm min-w-0 flex-col items-center gap-4 text-sm text-balance",
        className
      )}
      {...props}
    />
  )
}

export {
  Empty,
  EmptyHeader,
  EmptyTitle,
  EmptyDescription,
  EmptyContent,
  EmptyMedia,
}

Uso

import {
  Empty,
  EmptyContent,
  EmptyDescription,
  EmptyHeader,
  EmptyMedia,
  EmptyTitle,
} from "@/components/ui/empty"

<Empty>
  <EmptyHeader>
    <EmptyMedia variant="icon">
      <InboxIcon />
    </EmptyMedia>
    <EmptyTitle>Todavía no hay mensajes</EmptyTitle>
    <EmptyDescription>
      Cuando recibas un mensaje, aparecerá aquí.
    </EmptyDescription>
  </EmptyHeader>
  <EmptyContent>
    <Button size="sm">Redactar mensaje</Button>
  </EmptyContent>
</Empty>

Ejemplos

Con acciones

No projects yet

Create your first project to get started.

import { CloudIcon } from "lucide-react"

import { Button } from "@/components/ui/button"
import {
  Empty,
  EmptyContent,
  EmptyDescription,
  EmptyHeader,
  EmptyMedia,
  EmptyTitle,
} from "@/components/ui/empty"

export default function EmptyActionsDemo() {
  return (
    <Empty className="border">
      <EmptyHeader>
        <EmptyMedia variant="icon">
          <CloudIcon />
        </EmptyMedia>
        <EmptyTitle>No projects yet</EmptyTitle>
        <EmptyDescription>
          Create your first project to get started.
        </EmptyDescription>
      </EmptyHeader>
      <EmptyContent>
        <div className="flex gap-2">
          <Button size="sm">Create project</Button>
          <Button size="sm" variant="outline">
            Import
          </Button>
        </div>
      </EmptyContent>
    </Empty>
  )
}

Mínimo

404 — Not Found

The page you are looking for does not exist. Go home.

import {
  Empty,
  EmptyDescription,
  EmptyHeader,
  EmptyTitle,
} from "@/components/ui/empty"

export default function EmptySimpleDemo() {
  return (
    <Empty className="border">
      <EmptyHeader>
        <EmptyTitle>404 — Not Found</EmptyTitle>
        <EmptyDescription>
          The page you are looking for does not exist. <a href="#">Go home</a>.
        </EmptyDescription>
      </EmptyHeader>
    </Empty>
  )
}

Playground interactivo

Edita las propiedades del componente y revisa el JSX exacto antes de copiarlo. La vista previa se carga solo cuando esta sección entra en pantalla.

JSX generado

<Empty
  className="w-full max-w-md border"
>
  <EmptyHeader>
    <EmptyTitle>No components selected</EmptyTitle>
    <EmptyDescription>Choose a component to add it to your installation plan.</EmptyDescription>
  </EmptyHeader>
  <EmptyContent>
    <button
      type="button"
      className="rounded-md border px-3 py-2 font-medium"
    >Browse components</button>
  </EmptyContent>
</Empty>

Referencia de API

Generada a partir de las exportaciones públicas de TypeScript en src/ui/empty.tsx. Las descripciones técnicas conservan el texto canónico del código fuente.

Ver JSON

Empty

Componente

Props: React.ComponentProps<"div">

EmptyHeader

Componente

Props: React.ComponentProps<"div">

EmptyTitle

Componente

Props: React.ComponentProps<"div">

EmptyDescription

Componente

Props: React.ComponentProps<"p">

EmptyContent

Componente

Props: React.ComponentProps<"div">

EmptyMedia

Componente

Props: React.ComponentProps<"div"> & VariantProps<typeof emptyMediaVariants>

Propiedad	Tipo	Obligatoria	Valor predeterminado	Descripción
`variant`	`null \| "default" \| "icon"`	No	`"default"`	—

Contrato de accesibilidad

Comportamiento legible por máquinas y responsabilidades de quien integra empty. Los detalles normativos conservan el texto canónico del registro.

Ver JSON

Soporte: Contrato de composición
Patrón: empty state; HTML div

Semántica incorporada

Preserves native heading, paragraph and action semantics without forcing a live-region announcement.

Responsabilidades de integración

Use a heading that names the empty state and make the primary recovery action keyboard reachable.