Styled attachment with media, title, description, actions, trigger and group. A pure layout primitive.

Preview
Style
Files — Horizontal
sales-dashboard.pdfPDF · 2.4 MB
customer-import.csvCSV · 18 KB
message-renderer.tsxTypeScript · 12 KB
Files — Vertical
sales-dashboard.pdfPDF · 2.4 MB
customer-import.csvCSV · 18 KB
message-renderer.tsxTypeScript · 12 KB
source-assets.zipZIP · 4.2 MB
quarterly-review.keyKeynote · 9 MB
Content Only
React Documentation
Tailwind CSS
shadcn/ui
Building accessible componentsreact.dev · 8 min read
Utility-first CSS frameworktailwindcss.com
Compound components in Reactui.shadcn.com/docs
States — Horizontal
selected-file.pdfReady to upload
design-system.zipUploading · 64%
market-research.pdfProcessing document
financial-model.xlsxUpload failed. Try again.
uploaded-report.pdfUploaded · 1.8 MB
States — Vertical
selected-file.pdfReady
design-system.zipUploading
market-research.pdfProcessing
financial-model.xlsxFailed
uploaded-report.pdfDone
Images — Horizontal
Workspace
workspace.pngPNG · 820 KB
Desk
desk-reference.jpgJPG · 1.1 MB
Office
office-reference.jpgJPG · 940 KB
Images — Vertical
Workspace
workspace.pngPNG · 820 KB
Desk
desk-reference.jpgJPG · 1.1 MB
Office
office-reference.jpgJPG · 940 KB
Image States — Horizontal
Office
office-reference.jpgReady to upload
Workspace
workspace.pngUploading · 72%
Desk
desk-reference.jpgProcessing image
Office
office-reference.jpgUpload failed
Workspace
workspace.pngUploaded · 1.2 MB
Image States — Vertical
Office
office-reference.jpgReady
Workspace
workspace.pngUploading
Desk
desk-reference.jpgProcessing
Office
office-reference.jpgFailed
Workspace
workspace.pngDone
Sizes
Default attachmentPDF · 2.4 MB
Small attachmentPDF · 2.4 MB
Extra small attachment
Scrollable Group
briefing-notes.pdfPDF · 1.4 MB
Workspace
workspace.pngPNG · 820 KB
customers.csvCSV · 18 KB
renderer.tsxTSX · 12 KB
invoice.pdfPDF
Desk
desk.jpgJPG
assets.zipZIP
Office
office.jpgJPG
notes.pdfPDF
Triggers
contract-review.pdfPDF · 820 KB
research-summary.pdfOpen preview dialog
src/demo/views/attachment.ts1539 lines
import type { Html, HtmlBuilder } from 'foldkit/html'

import { Attachment, attachmentTriggerClass } from '../../generated/registry/ui/attachment'
import { icon } from '../../generated/registry/lib/icons'
import { spinner } from '../../generated/registry/ui/spinner'
import {
  Archive,
  Check,
  Clock,
  Copy,
  Download,
  FileArchive,
  FileCode,
  FileSearch,
  FileText,
  FileWarning,
  Presentation,
  RefreshCw,
  Table,
  X,
} from 'lucide'

import { defineSlice } from '../slice'
import type { Message, Model } from '../assemble'

const fileIcon = (h: HtmlBuilder<Message>, variant: string) => {
  switch (variant) {
    case 'csv':
      return icon(h, Table, 'size-5')
    case 'code':
      return icon(h, FileCode, 'size-5')
    case 'zip':
      return icon(h, FileArchive, 'size-5')
    case 'key':
      return icon(h, Presentation, 'size-5')
    case 'archive':
      return icon(h, Archive, 'size-5')
    default:
      return icon(h, FileText, 'size-5')
  }
}

const removeAction = (h: HtmlBuilder<Message>, label: string) =>
  Attachment.action<Message>(
    { attributes: [h.Attribute('aria-label', label)] },
    icon(h, X, 'size-3.5'),
    h,
  )

export const attachmentView = (_model: Model, h: HtmlBuilder<Message>): Html =>
  h.div(
    [h.Class('flex w-full flex-col gap-8')],
    [
      h.div(
        [h.Class('flex w-full flex-col gap-2')],
        [
          h.div(
            [h.Class('px-1 text-xs font-medium text-muted-foreground')],
            ['Files — Horizontal'],
          ),
          h.div(
            [h.Class('flex flex-col gap-3')],
            [
              Attachment<Message>(
                { className: 'w-full' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'pdf')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['sales-dashboard.pdf'], h),
                      Attachment.description<Message>({}, ['PDF · 2.4 MB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove sales-dashboard.pdf')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { className: 'w-full' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'csv')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['customer-import.csv'], h),
                      Attachment.description<Message>({}, ['CSV · 18 KB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove customer-import.csv')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { className: 'w-full' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'code')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['message-renderer.tsx'], h),
                      Attachment.description<Message>({}, ['TypeScript · 12 KB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove message-renderer.tsx')],
                    h,
                  ),
                ],
                h,
              ),
            ],
          ),
        ],
      ),
      h.div(
        [h.Class('flex w-full flex-col gap-2')],
        [
          h.div([h.Class('px-1 text-xs font-medium text-muted-foreground')], ['Files — Vertical']),
          Attachment.group<Message>(
            { className: 'w-full' },
            [
              Attachment<Message>(
                { orientation: 'vertical' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'pdf')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['sales-dashboard.pdf'], h),
                      Attachment.description<Message>({}, ['PDF · 2.4 MB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove sales-dashboard.pdf')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { orientation: 'vertical' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'csv')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['customer-import.csv'], h),
                      Attachment.description<Message>({}, ['CSV · 18 KB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove customer-import.csv')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { orientation: 'vertical' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'code')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['message-renderer.tsx'], h),
                      Attachment.description<Message>({}, ['TypeScript · 12 KB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove message-renderer.tsx')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { orientation: 'vertical' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'zip')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['source-assets.zip'], h),
                      Attachment.description<Message>({}, ['ZIP · 4.2 MB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove source-assets.zip')], h),
                ],
                h,
              ),
              Attachment<Message>(
                { orientation: 'vertical' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'key')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['quarterly-review.key'], h),
                      Attachment.description<Message>({}, ['Keynote · 9 MB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove quarterly-review.key')],
                    h,
                  ),
                ],
                h,
              ),
            ],
            h,
          ),
        ],
      ),
      h.div(
        [h.Class('flex w-full flex-col gap-2')],
        [
          h.div([h.Class('px-1 text-xs font-medium text-muted-foreground')], ['Content Only']),
          h.div(
            [h.Class('flex flex-col gap-3')],
            [
              Attachment<Message>(
                { className: 'w-full' },
                [
                  Attachment.content<Message>(
                    {},
                    [Attachment.title<Message>({}, ['React Documentation'], h)],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove React Documentation')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { className: 'w-full' },
                [
                  Attachment.content<Message>(
                    {},
                    [Attachment.title<Message>({}, ['Tailwind CSS'], h)],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove Tailwind CSS')], h),
                ],
                h,
              ),
              Attachment<Message>(
                { size: 'sm', className: 'w-48' },
                [
                  Attachment.content<Message>(
                    {},
                    [Attachment.title<Message>({}, ['shadcn/ui'], h)],
                    h,
                  ),
                  h.a(
                    [
                      h.Class(attachmentTriggerClass),
                      h.Href('https://ui.shadcn.com'),
                      h.Attribute('target', '_blank'),
                      h.Attribute('rel', 'noopener noreferrer'),
                      h.Attribute('aria-label', 'Open shadcn/ui'),
                      h.DataAttribute('slot', 'attachment-trigger'),
                    ],
                    [],
                  ),
                ],
                h,
              ),
            ],
          ),
          h.div(
            [h.Class('flex flex-col gap-3')],
            [
              Attachment<Message>(
                { className: 'w-full' },
                [
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['Building accessible components'], h),
                      Attachment.description<Message>({}, ['react.dev · 8 min read'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove Building accessible components')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { className: 'w-full' },
                [
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['Utility-first CSS framework'], h),
                      Attachment.description<Message>({}, ['tailwindcss.com'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove Utility-first CSS framework')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { size: 'sm', className: 'w-full max-w-80' },
                [
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['Compound components in React'], h),
                      Attachment.description<Message>({}, ['ui.shadcn.com/docs'], h),
                    ],
                    h,
                  ),
                  h.a(
                    [
                      h.Class(attachmentTriggerClass),
                      h.Href('https://ui.shadcn.com/docs'),
                      h.Attribute('target', '_blank'),
                      h.Attribute('rel', 'noopener noreferrer'),
                      h.Attribute('aria-label', 'Open Compound components in React'),
                      h.DataAttribute('slot', 'attachment-trigger'),
                    ],
                    [],
                  ),
                ],
                h,
              ),
            ],
          ),
        ],
      ),
      h.div(
        [h.Class('flex w-full flex-col gap-3')],
        [
          h.div(
            [h.Class('px-1 text-xs font-medium text-muted-foreground')],
            ['States — Horizontal'],
          ),
          h.div(
            [h.Class('flex flex-col gap-2')],
            [
              Attachment<Message>(
                { state: 'idle', className: 'w-full' },
                [
                  Attachment.media<Message>({}, [icon(h, Clock, 'size-5')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['selected-file.pdf'], h),
                      Attachment.description<Message>({}, ['Ready to upload'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove selected-file.pdf')], h),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'uploading', className: 'w-full' },
                [
                  Attachment.media<Message>({}, [spinner<Message>({}, h)], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['design-system.zip'], h),
                      Attachment.description<Message>({}, ['Uploading · 64%'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove design-system.zip')], h),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'processing', className: 'w-full' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'pdf')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['market-research.pdf'], h),
                      Attachment.description<Message>({}, ['Processing document'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove market-research.pdf')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'error', className: 'w-full' },
                [
                  Attachment.media<Message>({}, [icon(h, FileWarning, 'size-5')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['financial-model.xlsx'], h),
                      Attachment.description<Message>({}, ['Upload failed. Try again.'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [
                      Attachment.action<Message>(
                        { attributes: [h.Attribute('aria-label', 'Retry upload')] },
                        icon(h, RefreshCw, 'size-3.5'),
                        h,
                      ),
                      removeAction(h, 'Remove attachment'),
                    ],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'done', className: 'w-full' },
                [
                  Attachment.media<Message>({}, [icon(h, Check, 'size-5')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['uploaded-report.pdf'], h),
                      Attachment.description<Message>({}, ['Uploaded · 1.8 MB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove uploaded-report.pdf')],
                    h,
                  ),
                ],
                h,
              ),
            ],
          ),
        ],
      ),
      h.div(
        [h.Class('flex w-full flex-col gap-2')],
        [
          h.div([h.Class('px-1 text-xs font-medium text-muted-foreground')], ['States — Vertical']),
          Attachment.group<Message>(
            { className: 'w-full' },
            [
              Attachment<Message>(
                { state: 'idle', orientation: 'vertical' },
                [
                  Attachment.media<Message>({}, [icon(h, Clock, 'size-5')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['selected-file.pdf'], h),
                      Attachment.description<Message>({}, ['Ready'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove selected-file.pdf')], h),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'uploading', orientation: 'vertical' },
                [
                  Attachment.media<Message>({}, [spinner<Message>({}, h)], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['design-system.zip'], h),
                      Attachment.description<Message>({}, ['Uploading'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove design-system.zip')], h),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'processing', orientation: 'vertical' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'pdf')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['market-research.pdf'], h),
                      Attachment.description<Message>({}, ['Processing'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove market-research.pdf')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'error', orientation: 'vertical' },
                [
                  Attachment.media<Message>({}, [icon(h, FileWarning, 'size-5')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['financial-model.xlsx'], h),
                      Attachment.description<Message>({}, ['Failed'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [
                      Attachment.action<Message>(
                        { attributes: [h.Attribute('aria-label', 'Retry financial-model.xlsx')] },
                        icon(h, RefreshCw, 'size-3.5'),
                        h,
                      ),
                      removeAction(h, 'Remove financial-model.xlsx'),
                    ],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'done', orientation: 'vertical' },
                [
                  Attachment.media<Message>({}, [icon(h, Check, 'size-5')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['uploaded-report.pdf'], h),
                      Attachment.description<Message>({}, ['Done'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove uploaded-report.pdf')],
                    h,
                  ),
                ],
                h,
              ),
            ],
            h,
          ),
        ],
      ),
      h.div(
        [h.Class('flex w-full flex-col gap-3')],
        [
          h.div(
            [h.Class('px-1 text-xs font-medium text-muted-foreground')],
            ['Images — Horizontal'],
          ),
          h.div(
            [h.Class('flex flex-col gap-2')],
            [
              Attachment<Message>(
                { className: 'w-full' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497366754035-f200968a6e72?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Workspace'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['workspace.png'], h),
                      Attachment.description<Message>({}, ['PNG · 820 KB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove workspace.png')], h),
                  h.a(
                    [
                      h.Class(attachmentTriggerClass),
                      h.Href(
                        'https://images.unsplash.com/photo-1497366754035-f200968a6e72?w=900&auto=format&fit=crop&q=80',
                      ),
                      h.Attribute('target', '_blank'),
                      h.Attribute('rel', 'noreferrer'),
                      h.Attribute('aria-label', 'Open workspace.png'),
                      h.DataAttribute('slot', 'attachment-trigger'),
                    ],
                    [],
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { className: 'w-full' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497215728101-856f4ea42174?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Desk'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['desk-reference.jpg'], h),
                      Attachment.description<Message>({}, ['JPG · 1.1 MB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove desk-reference.jpg')],
                    h,
                  ),
                  h.a(
                    [
                      h.Class(attachmentTriggerClass),
                      h.Href(
                        'https://images.unsplash.com/photo-1497215728101-856f4ea42174?w=900&auto=format&fit=crop&q=80',
                      ),
                      h.Attribute('target', '_blank'),
                      h.Attribute('rel', 'noreferrer'),
                      h.Attribute('aria-label', 'Open desk-reference.jpg'),
                      h.DataAttribute('slot', 'attachment-trigger'),
                    ],
                    [],
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { className: 'w-full' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497366811353-6870744d04b2?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Office'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['office-reference.jpg'], h),
                      Attachment.description<Message>({}, ['JPG · 940 KB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove office-reference.jpg')],
                    h,
                  ),
                  h.a(
                    [
                      h.Class(attachmentTriggerClass),
                      h.Href(
                        'https://images.unsplash.com/photo-1497366811353-6870744d04b2?w=900&auto=format&fit=crop&q=80',
                      ),
                      h.Attribute('target', '_blank'),
                      h.Attribute('rel', 'noreferrer'),
                      h.Attribute('aria-label', 'Open office-reference.jpg'),
                      h.DataAttribute('slot', 'attachment-trigger'),
                    ],
                    [],
                  ),
                ],
                h,
              ),
            ],
          ),
        ],
      ),
      h.div(
        [h.Class('flex w-full flex-col gap-2')],
        [
          h.div([h.Class('px-1 text-xs font-medium text-muted-foreground')], ['Images — Vertical']),
          Attachment.group<Message>(
            { className: 'w-full' },
            [
              Attachment<Message>(
                { orientation: 'vertical' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497366754035-f200968a6e72?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Workspace'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['workspace.png'], h),
                      Attachment.description<Message>({}, ['PNG · 820 KB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove workspace.png')], h),
                  h.a(
                    [
                      h.Class(attachmentTriggerClass),
                      h.Href(
                        'https://images.unsplash.com/photo-1497366754035-f200968a6e72?w=900&auto=format&fit=crop&q=80',
                      ),
                      h.Attribute('target', '_blank'),
                      h.Attribute('rel', 'noreferrer'),
                      h.Attribute('aria-label', 'Open workspace.png'),
                      h.DataAttribute('slot', 'attachment-trigger'),
                    ],
                    [],
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { orientation: 'vertical' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497215728101-856f4ea42174?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Desk'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['desk-reference.jpg'], h),
                      Attachment.description<Message>({}, ['JPG · 1.1 MB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove desk-reference.jpg')],
                    h,
                  ),
                  h.a(
                    [
                      h.Class(attachmentTriggerClass),
                      h.Href(
                        'https://images.unsplash.com/photo-1497215728101-856f4ea42174?w=900&auto=format&fit=crop&q=80',
                      ),
                      h.Attribute('target', '_blank'),
                      h.Attribute('rel', 'noreferrer'),
                      h.Attribute('aria-label', 'Open desk-reference.jpg'),
                      h.DataAttribute('slot', 'attachment-trigger'),
                    ],
                    [],
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { orientation: 'vertical' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497366811353-6870744d04b2?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Office'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['office-reference.jpg'], h),
                      Attachment.description<Message>({}, ['JPG · 940 KB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove office-reference.jpg')],
                    h,
                  ),
                  h.a(
                    [
                      h.Class(attachmentTriggerClass),
                      h.Href(
                        'https://images.unsplash.com/photo-1497366811353-6870744d04b2?w=900&auto=format&fit=crop&q=80',
                      ),
                      h.Attribute('target', '_blank'),
                      h.Attribute('rel', 'noreferrer'),
                      h.Attribute('aria-label', 'Open office-reference.jpg'),
                      h.DataAttribute('slot', 'attachment-trigger'),
                    ],
                    [],
                  ),
                ],
                h,
              ),
            ],
            h,
          ),
        ],
      ),
      h.div(
        [h.Class('flex w-full flex-col gap-2')],
        [
          h.div(
            [h.Class('px-1 text-xs font-medium text-muted-foreground')],
            ['Image States — Horizontal'],
          ),
          h.div(
            [h.Class('flex flex-col gap-2')],
            [
              Attachment<Message>(
                { state: 'idle', className: 'w-full' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497366811353-6870744d04b2?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Office'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['office-reference.jpg'], h),
                      Attachment.description<Message>({}, ['Ready to upload'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove office-reference.jpg')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'uploading', className: 'w-full' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497366754035-f200968a6e72?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Workspace'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['workspace.png'], h),
                      Attachment.description<Message>({}, ['Uploading · 72%'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove workspace.png')], h),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'processing', className: 'w-full' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497215728101-856f4ea42174?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Desk'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['desk-reference.jpg'], h),
                      Attachment.description<Message>({}, ['Processing image'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove desk-reference.jpg')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'error', className: 'w-full' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497366811353-6870744d04b2?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Office'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['office-reference.jpg'], h),
                      Attachment.description<Message>({}, ['Upload failed'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [
                      Attachment.action<Message>(
                        { attributes: [h.Attribute('aria-label', 'Retry image upload')] },
                        icon(h, RefreshCw, 'size-3.5'),
                        h,
                      ),
                      removeAction(h, 'Remove attachment'),
                    ],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'done', className: 'w-full' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497366754035-f200968a6e72?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Workspace'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['workspace.png'], h),
                      Attachment.description<Message>({}, ['Uploaded · 1.2 MB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove workspace.png')], h),
                ],
                h,
              ),
            ],
          ),
        ],
      ),
      h.div(
        [h.Class('flex w-full flex-col gap-2')],
        [
          h.div(
            [h.Class('px-1 text-xs font-medium text-muted-foreground')],
            ['Image States — Vertical'],
          ),
          Attachment.group<Message>(
            { className: 'w-full' },
            [
              Attachment<Message>(
                { state: 'idle', orientation: 'vertical' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497366811353-6870744d04b2?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Office'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['office-reference.jpg'], h),
                      Attachment.description<Message>({}, ['Ready'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove office-reference.jpg')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'uploading', orientation: 'vertical' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497366754035-f200968a6e72?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Workspace'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['workspace.png'], h),
                      Attachment.description<Message>({}, ['Uploading'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove workspace.png')], h),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'processing', orientation: 'vertical' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497215728101-856f4ea42174?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Desk'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['desk-reference.jpg'], h),
                      Attachment.description<Message>({}, ['Processing'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove desk-reference.jpg')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'error', orientation: 'vertical' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497366811353-6870744d04b2?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Office'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['office-reference.jpg'], h),
                      Attachment.description<Message>({}, ['Failed'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [
                      Attachment.action<Message>(
                        { attributes: [h.Attribute('aria-label', 'Retry office-reference.jpg')] },
                        icon(h, RefreshCw, 'size-3.5'),
                        h,
                      ),
                      removeAction(h, 'Remove office-reference.jpg'),
                    ],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { state: 'done', orientation: 'vertical' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497366754035-f200968a6e72?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Workspace'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['workspace.png'], h),
                      Attachment.description<Message>({}, ['Done'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove workspace.png')], h),
                ],
                h,
              ),
            ],
            h,
          ),
        ],
      ),
      h.div(
        [h.Class('flex w-full flex-col gap-3')],
        [
          h.div([h.Class('px-1 text-xs font-medium text-muted-foreground')], ['Sizes']),
          Attachment<Message>(
            { size: 'default', className: 'w-full' },
            [
              Attachment.media<Message>({}, [fileIcon(h, 'pdf')], h),
              Attachment.content<Message>(
                {},
                [
                  Attachment.title<Message>({}, ['Default attachment'], h),
                  Attachment.description<Message>({}, ['PDF · 2.4 MB'], h),
                ],
                h,
              ),
            ],
            h,
          ),
          Attachment<Message>(
            { size: 'sm', className: 'w-full' },
            [
              Attachment.media<Message>({}, [fileIcon(h, 'pdf')], h),
              Attachment.content<Message>(
                {},
                [
                  Attachment.title<Message>({}, ['Small attachment'], h),
                  Attachment.description<Message>({}, ['PDF · 2.4 MB'], h),
                ],
                h,
              ),
            ],
            h,
          ),
          Attachment<Message>(
            { size: 'xs', className: 'w-full' },
            [
              Attachment.media<Message>({}, [fileIcon(h, 'pdf')], h),
              Attachment.content<Message>(
                {},
                [Attachment.title<Message>({}, ['Extra small attachment'], h)],
                h,
              ),
            ],
            h,
          ),
        ],
      ),
      h.div(
        [h.Class('flex w-full flex-col gap-4')],
        [
          h.div([h.Class('px-1 text-xs font-medium text-muted-foreground')], ['Scrollable Group']),
          Attachment.group<Message>(
            { className: 'w-full' },
            [
              Attachment<Message>(
                { className: 'w-64' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'pdf')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['briefing-notes.pdf'], h),
                      Attachment.description<Message>({}, ['PDF · 1.4 MB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>(
                    {},
                    [removeAction(h, 'Remove briefing-notes.pdf')],
                    h,
                  ),
                ],
                h,
              ),
              Attachment<Message>(
                { className: 'w-64' },
                [
                  Attachment.media<Message>(
                    { variant: 'image' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497366754035-f200968a6e72?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Workspace'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['workspace.png'], h),
                      Attachment.description<Message>({}, ['PNG · 820 KB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove workspace.png')], h),
                ],
                h,
              ),
              Attachment<Message>(
                { className: 'w-64' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'csv')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['customers.csv'], h),
                      Attachment.description<Message>({}, ['CSV · 18 KB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove customers.csv')], h),
                ],
                h,
              ),
              Attachment<Message>(
                { className: 'w-64' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'code')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['renderer.tsx'], h),
                      Attachment.description<Message>({}, ['TSX · 12 KB'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove renderer.tsx')], h),
                ],
                h,
              ),
            ],
            h,
          ),
          Attachment.group<Message>(
            { className: 'w-full' },
            [
              Attachment<Message>(
                { orientation: 'vertical' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'pdf')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['invoice.pdf'], h),
                      Attachment.description<Message>({}, ['PDF'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove invoice.pdf')], h),
                ],
                h,
              ),
              Attachment<Message>(
                { orientation: 'vertical' },
                [
                  Attachment.media<Message>(
                    { variant: 'image', className: 'aspect-square w-full' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497215728101-856f4ea42174?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Desk'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['desk.jpg'], h),
                      Attachment.description<Message>({}, ['JPG'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove desk.jpg')], h),
                ],
                h,
              ),
              Attachment<Message>(
                { orientation: 'vertical' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'zip')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['assets.zip'], h),
                      Attachment.description<Message>({}, ['ZIP'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove assets.zip')], h),
                ],
                h,
              ),
              Attachment<Message>(
                { orientation: 'vertical' },
                [
                  Attachment.media<Message>(
                    { variant: 'image', className: 'aspect-square w-full' },
                    [
                      h.img([
                        h.Src(
                          'https://images.unsplash.com/photo-1497366811353-6870744d04b2?w=900&auto=format&fit=crop&q=80',
                        ),
                        h.Alt('Office'),
                      ]),
                    ],
                    h,
                  ),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['office.jpg'], h),
                      Attachment.description<Message>({}, ['JPG'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove office.jpg')], h),
                ],
                h,
              ),
              Attachment<Message>(
                { orientation: 'vertical' },
                [
                  Attachment.media<Message>({}, [fileIcon(h, 'pdf')], h),
                  Attachment.content<Message>(
                    {},
                    [
                      Attachment.title<Message>({}, ['notes.pdf'], h),
                      Attachment.description<Message>({}, ['PDF'], h),
                    ],
                    h,
                  ),
                  Attachment.actions<Message>({}, [removeAction(h, 'Remove notes.pdf')], h),
                ],
                h,
              ),
            ],
            h,
          ),
        ],
      ),
      h.div(
        [h.Class('flex w-full flex-col gap-3')],
        [
          h.div([h.Class('px-1 text-xs font-medium text-muted-foreground')], ['Triggers']),
          Attachment<Message>(
            { className: 'w-full' },
            [
              Attachment.media<Message>({}, [fileIcon(h, 'pdf')], h),
              Attachment.content<Message>(
                {},
                [
                  Attachment.title<Message>({}, ['contract-review.pdf'], h),
                  Attachment.description<Message>({}, ['PDF · 820 KB'], h),
                ],
                h,
              ),
              Attachment.actions<Message>(
                {},
                [
                  Attachment.action<Message>(
                    { attributes: [h.Attribute('aria-label', 'Download attachment')] },
                    icon(h, Download, 'size-3.5'),
                    h,
                  ),
                  removeAction(h, 'Remove attachment'),
                ],
                h,
              ),
              h.a(
                [
                  h.Class(attachmentTriggerClass),
                  h.Href('#'),
                  h.Attribute('target', '_blank'),
                  h.Attribute('rel', 'noreferrer'),
                  h.Attribute('aria-label', 'Open contract-review.pdf'),
                  h.DataAttribute('slot', 'attachment-trigger'),
                ],
                [],
              ),
            ],
            h,
          ),
          Attachment<Message>(
            { className: 'w-full' },
            [
              Attachment.media<Message>({}, [icon(h, FileSearch, 'size-5')], h),
              Attachment.content<Message>(
                {},
                [
                  Attachment.title<Message>({}, ['research-summary.pdf'], h),
                  Attachment.description<Message>({}, ['Open preview dialog'], h),
                ],
                h,
              ),
              Attachment.actions<Message>(
                {},
                [
                  Attachment.action<Message>(
                    { attributes: [h.Attribute('aria-label', 'Copy link')] },
                    icon(h, Copy, 'size-3.5'),
                    h,
                  ),
                  removeAction(h, 'Remove research-summary.pdf'),
                ],
                h,
              ),
              Attachment.trigger<Message>(
                { attributes: [h.Attribute('aria-label', 'Preview research-summary.pdf')] },
                h,
              ),
            ],
            h,
          ),
        ],
      ),
    ],
  )

export const slice = defineSlice({
  fields: {},
  init: {},
  messages: [],
  handlers: () => ({}),
})

This code is shown verbatim — it’s the exact file used for this preview. Much of the surrounding wiring (slice, fields, messages, handlers) belongs to this site’s demo harness; you only need the view and the state that matters for your own app. Adapt what you need.

Installation

Add this component to your project:

pnpm dlx shadcn@latest add @foldcn/attachment

Source

The component ships as plain source — no build step, no wrapper. Copy it and make it yours.

registry/default/ui/attachment.ts253 lines
import { Button as FoldkitButton } from '@foldkit/ui'
import type { Attribute, Html, HtmlBuilder } from 'foldkit/html'

type Child = Html | string

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

export const attachmentStateKeys = ['idle', 'uploading', 'processing', 'error', 'done'] as const
export type AttachmentState = (typeof attachmentStateKeys)[number]

export const attachmentSizeKeys = ['default', 'sm', 'xs'] as const
export type AttachmentSize = (typeof attachmentSizeKeys)[number]

export const attachmentSizes: Record<AttachmentSize, string> = {
  default: 'gap-2 has-data-[slot=attachment-content]:px-2.5 has-data-[slot=attachment-content]:py-2 has-data-[slot=attachment-media]:p-2 text-sm',
  sm: 'gap-2.5 has-data-[slot=attachment-content]:px-2 has-data-[slot=attachment-content]:py-1.5 has-data-[slot=attachment-media]:p-1.5 text-xs',
  xs: 'gap-1.5 has-data-[slot=attachment-content]:px-1.5 has-data-[slot=attachment-content]:py-1 has-data-[slot=attachment-media]:p-1 text-xs rounded-lg',
}

export const attachmentOrientationKeys = ['horizontal', 'vertical'] as const
export type AttachmentOrientation = (typeof attachmentOrientationKeys)[number]

export const attachmentOrientations: Record<AttachmentOrientation, string> = {
  horizontal: 'min-w-40 items-center',
  vertical: 'w-24 has-data-[slot=attachment-content]:w-30 flex-col',
}

export const attachmentClass =
  'rounded-xl w-fit focus-within:ring-1 focus-within:ring-ring/50 group/attachment relative flex max-w-full min-w-0 shrink-0 flex-wrap border bg-card text-card-foreground transition-colors has-[>a,>button]:hover:bg-muted/50 data-[state=error]:border-destructive/30 data-[state=idle]:border-dashed'

export const attachmentMediaVariantKeys = ['icon', 'image'] as const
export type AttachmentMediaVariant = (typeof attachmentMediaVariantKeys)[number]

export const attachmentMediaVariants: Record<AttachmentMediaVariant, string> = {
  icon: '',
  image:
    'opacity-60 group-data-[state=idle]/attachment:opacity-100 group-data-[state=done]/attachment:opacity-100 *:[img]:aspect-square *:[img]:w-full *:[img]:object-cover',
}

export const attachmentMediaClass =
  'bg-muted text-foreground w-10 rounded-lg group-data-[size=sm]/attachment:w-8 group-data-[size=xs]/attachment:w-7 group-data-[size=xs]/attachment:rounded-md [&_svg:not([class*=\'size-\'])]:size-4 group-data-[size=xs]/attachment:[&_svg:not([class*=\'size-\'])]:size-3.5 group-data-[orientation=vertical]/attachment:w-full group-data-[orientation=vertical]/attachment:[&_svg:not([class*=\'size-\'])]:size-6 group-data-[orientation=vertical]/attachment:*:data-[slot=spinner]:size-6! relative flex aspect-square shrink-0 items-center justify-center overflow-hidden group-data-[state=error]/attachment:bg-destructive/10 group-data-[state=error]/attachment:text-destructive [&_svg]:pointer-events-none'

export const attachmentContentClass = 'leading-tight group-data-[orientation=vertical]/attachment:px-1 max-w-full min-w-0 flex-1'

export const attachmentTitleClass =
  'font-medium block max-w-full min-w-0 truncate group-data-[state=processing]/attachment:shimmer group-data-[state=uploading]/attachment:shimmer'

export const attachmentDescriptionClass =
  'mt-0.5 text-xs block min-w-0 truncate text-muted-foreground group-data-[state=error]/attachment:text-destructive/80 max-w-full'

export const attachmentActionsClass = 'group-data-[orientation=vertical]/attachment:absolute group-data-[orientation=vertical]/attachment:top-3 group-data-[orientation=vertical]/attachment:right-3 relative z-20 group-data-[orientation=vertical]/attachment:gap-1 flex shrink-0 items-center'

export const attachmentActionClass =
  'focus-visible:border-ring focus-visible:ring-ring/50 aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive dark:aria-invalid:border-destructive/50 border border-transparent bg-clip-padding text-sm font-medium focus-visible:ring-3 aria-invalid:ring-3 active:not-aria-[haspopup]:translate-y-px group/button inline-flex shrink-0 items-center justify-center whitespace-nowrap transition-all outline-none select-none [&_svg]:pointer-events-none [&_svg]:shrink-0 disabled:pointer-events-none disabled:opacity-50 aria-disabled:pointer-events-none aria-disabled:opacity-50 data-disabled:pointer-events-none data-disabled:opacity-50 hover:bg-muted hover:text-foreground dark:hover:bg-muted/50 aria-expanded:bg-muted aria-expanded:text-foreground size-6 rounded-[min(var(--radius-md),10px)] in-data-[slot=button-group]:rounded-lg [&_svg:not([class*=\'size-\'])]:size-3'

export const attachmentTriggerClass = 'absolute inset-0 z-10 outline-none'

export const attachmentGroupClass =
  'gap-3 scroll-px-1 py-1 flex min-w-0 scroll-fade-x snap-x snap-mandatory scrollbar-none overflow-x-auto overscroll-x-contain *:data-[slot=attachment]:flex-none *:data-[slot=attachment]:snap-start'

type StyleConfig = Readonly<{ className?: string }>

type AttachmentConfig = Readonly<{
  state?: AttachmentState
  size?: AttachmentSize
  orientation?: AttachmentOrientation
  className?: string
}>

type AttachmentMediaConfig = Readonly<{
  variant?: AttachmentMediaVariant
  className?: string
}>

type ButtonConfig<M> = Readonly<{
  onClick?: M
  isDisabled?: boolean
  type?: 'button' | 'submit' | 'reset'
  isAutofocus?: boolean
  className?: string
  attributes?: ReadonlyArray<Attribute<M>>
}>

const attachmentGroup = <M>(
  config: StyleConfig,
  children: ReadonlyArray<Child>,
  h: HtmlBuilder<M>,
): Html =>
  h.div(
    [
      h.Class(cn(attachmentGroupClass, config.className)),
      h.DataAttribute('slot', 'attachment-group'),
    ],
    children,
  )

const attachmentContainer = <M>(
  config: AttachmentConfig,
  children: ReadonlyArray<Child>,
  h: HtmlBuilder<M>,
): Html =>
  h.div(
    [
      h.Class(
        cn(
          attachmentClass,
          attachmentSizes[config.size ?? 'default'],
          attachmentOrientations[config.orientation ?? 'horizontal'],
          config.className,
        ),
      ),
      h.DataAttribute('slot', 'attachment'),
      h.DataAttribute('state', config.state ?? 'done'),
      h.DataAttribute('size', config.size ?? 'default'),
      h.DataAttribute('orientation', config.orientation ?? 'horizontal'),
    ],
    children,
  )

const attachmentMedia = <M>(
  config: AttachmentMediaConfig,
  children: ReadonlyArray<Child>,
  h: HtmlBuilder<M>,
): Html =>
  h.div(
    [
      h.Class(
        cn(
          attachmentMediaClass,
          attachmentMediaVariants[config.variant ?? 'icon'],
          config.className,
        ),
      ),
      h.DataAttribute('slot', 'attachment-media'),
      h.DataAttribute('variant', config.variant ?? 'icon'),
    ],
    children,
  )

const attachmentContent = <M>(
  config: StyleConfig,
  children: ReadonlyArray<Child>,
  h: HtmlBuilder<M>,
): Html =>
  h.div(
    [
      h.Class(cn(attachmentContentClass, config.className)),
      h.DataAttribute('slot', 'attachment-content'),
    ],
    children,
  )

const attachmentTitle = <M>(
  config: StyleConfig,
  children: ReadonlyArray<Child>,
  h: HtmlBuilder<M>,
): Html =>
  h.span(
    [
      h.Class(cn(attachmentTitleClass, config.className)),
      h.DataAttribute('slot', 'attachment-title'),
    ],
    children,
  )

const attachmentDescription = <M>(
  config: StyleConfig,
  children: ReadonlyArray<Child>,
  h: HtmlBuilder<M>,
): Html =>
  h.span(
    [
      h.Class(cn(attachmentDescriptionClass, config.className)),
      h.DataAttribute('slot', 'attachment-description'),
    ],
    children,
  )

const attachmentActions = <M>(
  config: StyleConfig,
  children: ReadonlyArray<Child>,
  h: HtmlBuilder<M>,
): Html =>
  h.div(
    [
      h.Class(cn(attachmentActionsClass, config.className)),
      h.DataAttribute('slot', 'attachment-actions'),
    ],
    children,
  )

const attachmentAction = <M>(
  config: ButtonConfig<M>,
  label: Html | string,
  h: HtmlBuilder<M>,
): Html =>
  FoldkitButton.view<M>(
    {
      onClick: config.onClick,
      isDisabled: config.isDisabled,
      type: config.type,
      isAutofocus: config.isAutofocus,
      toView: (attributes) =>
        h.button(
          [
            ...attributes.button,
            h.Class(cn(attachmentActionClass, config.className)),
            h.DataAttribute('slot', 'attachment-action'),
            ...(config.attributes ?? []),
          ],
          [label],
        ),
    },
    h,
  )

const attachmentTrigger = <M>(config: ButtonConfig<M>, h: HtmlBuilder<M>): Html =>
  FoldkitButton.view<M>(
    {
      onClick: config.onClick,
      isDisabled: config.isDisabled,
      type: config.type ?? 'button',
      isAutofocus: config.isAutofocus,
      toView: (attributes) =>
        h.button(
          [
            ...attributes.button,
            h.Class(cn(attachmentTriggerClass, config.className)),
            h.DataAttribute('slot', 'attachment-trigger'),
            ...(config.attributes ?? []),
          ],
          [],
        ),
    },
    h,
  )

/** Styled attachment — a file/card preview with `Attachment.group`,
 *  `Attachment.media`, `Attachment.content`, `Attachment.title`,
 *  `Attachment.description`, `Attachment.actions`, `Attachment.action`,
 *  `Attachment.trigger` sub-builders. Mirrors the shadcn v4 `attachment.tsx`.
 *  Pure layout primitive (no @foldkit/ui submodel). */
export const Attachment = Object.assign(attachmentContainer, {
  group: attachmentGroup,
  media: attachmentMedia,
  content: attachmentContent,
  title: attachmentTitle,
  description: attachmentDescription,
  actions: attachmentActions,
  action: attachmentAction,
  trigger: attachmentTrigger,
})