{
  "$schema": "https://ui.shadcn.com/schema/registry-item.json",
  "name": "file-upload-04",
  "type": "registry:block",
  "title": "File Upload Drag & Drop",
  "description": "File Upload Drag & Drop. File selection, drag and drop, previews, and upload progress for a product workspace.",
  "author": "Ephraim Duncan",
  "registryDependencies": [],
  "dependencies": [
    "@base-ui/react@1.9.0",
    "class-variance-authority@0.7.1",
    "cn@0.2.6",
    "lucide-react@0.577.0",
    "sonner@2.0.8"
  ],
  "files": [
    {
      "path": "content/components/file-upload/file-upload-04.tsx",
      "type": "registry:component",
      "target": "@components/uiblocks/file-upload-04/file-upload-04.tsx",
      "content": "'use client';\n\nimport { File, FileSpreadsheet, X } from 'lucide-react';\nimport { type ChangeEvent, type DragEvent, useRef, useState } from 'react';\nimport { toast } from 'sonner';\n\nimport { Button } from \"./shared/components/ui/button\";\nimport { Card } from \"./shared/components/ui/card\";\nimport { Progress } from \"./shared/components/ui/progress\";\n\nexport default function FileUpload04() {\n  const [uploadState, setUploadState] = useState<{\n    file: File | null;\n    progress: number;\n    uploading: boolean;\n  }>({\n    file: null,\n    progress: 0,\n    uploading: false,\n  });\n  const [showDummy, setShowDummy] = useState(true);\n  const fileInputRef = useRef<HTMLInputElement>(null);\n\n  const validFileTypes = [\n    'text/csv',\n    'application/vnd.ms-excel',\n    'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',\n  ];\n\n  const handleFile = (file: File | undefined) => {\n    if (!file) return;\n\n    if (validFileTypes.includes(file.type)) {\n      setUploadState({ file, progress: 0, uploading: true });\n\n      const interval = setInterval(() => {\n        setUploadState((prev) => {\n          const newProgress = prev.progress + 5;\n          if (newProgress >= 100) {\n            clearInterval(interval);\n            return { ...prev, progress: 100, uploading: false };\n          }\n          return { ...prev, progress: newProgress };\n        });\n      }, 200);\n    } else {\n      toast.error('Please upload a CSV, XLSX, or XLS file.', {\n        position: 'bottom-right',\n        duration: 3000,\n      });\n    }\n  };\n\n  const handleFileChange = (event: ChangeEvent<HTMLInputElement>) => {\n    handleFile(event.target.files?.[0]);\n  };\n\n  const handleDrop = (event: DragEvent<HTMLDivElement>) => {\n    event.preventDefault();\n    handleFile(event.dataTransfer.files?.[0]);\n  };\n\n  const resetFile = () => {\n    setUploadState({ file: null, progress: 0, uploading: false });\n    if (fileInputRef.current) {\n      fileInputRef.current.value = '';\n    }\n  };\n\n  const getFileIcon = () => {\n    if (!uploadState.file) return <File />;\n\n    const fileExt = uploadState.file.name.split('.').pop()?.toLowerCase() || '';\n    return ['csv', 'xlsx', 'xls'].includes(fileExt) ? (\n      <FileSpreadsheet className=\"h-5 w-5 text-foreground\" />\n    ) : (\n      <File className=\"h-5 w-5 text-foreground\" />\n    );\n  };\n\n  const formatFileSize = (bytes: number) => {\n    if (bytes === 0) return '0 Bytes';\n    const k = 1024;\n    const sizes = ['Bytes', 'KB', 'MB', 'GB'];\n    const i = Math.floor(Math.log(bytes) / Math.log(k));\n    return Number.parseFloat((bytes / k ** i).toFixed(1)) + ' ' + sizes[i];\n  };\n\n  const { file, progress, uploading } = uploadState;\n\n  return (\n    <div className=\"flex w-full max-w-lg items-center justify-center p-10\">\n      <form className=\"w-full\" onSubmit={(e) => e.preventDefault()}>\n        <h3 className=\"text-balance font-semibold text-foreground text-lg\">\n          File Upload\n        </h3>\n\n        <div\n          className=\"mt-2 flex justify-center rounded-md border border-input border-dashed px-6 py-12\"\n          onDragOver={(e) => e.preventDefault()}\n          onDrop={handleDrop}\n        >\n          <div>\n            <File\n              aria-hidden={true}\n              className=\"mx-auto h-12 w-12 text-muted-foreground\"\n            />\n            <div className=\"flex text-muted-foreground text-sm leading-6\">\n              <p>Drag and drop or</p>\n              <label\n                className=\"relative cursor-pointer rounded-sm pl-1 font-medium text-primary hover:underline hover:underline-offset-4\"\n                htmlFor=\"file-upload-03\"\n              >\n                <span>choose file</span>\n                <input\n                  accept=\".csv, .xlsx, .xls\"\n                  className=\"sr-only\"\n                  id=\"file-upload-03\"\n                  name=\"file-upload-03\"\n                  onChange={handleFileChange}\n                  ref={fileInputRef}\n                  type=\"file\"\n                />\n              </label>\n              <p className=\"text-pretty pl-1\">to upload</p>\n            </div>\n          </div>\n        </div>\n\n        <p className=\"mt-2 text-pretty text-muted-foreground text-xs leading-5 sm:flex sm:items-center sm:justify-between\">\n          <span>Accepted file types: CSV, XLSX or XLS files.</span>\n          <span className=\"pl-1 sm:pl-0\">Max. size: 10MB</span>\n        </p>\n\n        {!file && showDummy && (\n          <Card className=\"relative mt-8 gap-4 bg-muted p-4 shadow-none\">\n            <Button\n              aria-label=\"Remove\"\n              className=\"absolute top-1 right-1 text-muted-foreground hover:text-foreground\"\n              onClick={() => setShowDummy(false)}\n              size=\"icon-sm\"\n              type=\"button\"\n              variant=\"ghost\"\n            >\n              <X aria-hidden={true} className=\"h-5 w-5 shrink-0\" />\n            </Button>\n\n            <div className=\"flex items-center space-x-2.5\">\n              <span className=\"flex h-10 w-10 shrink-0 items-center justify-center rounded-sm bg-background shadow-sm ring-1 ring-border ring-inset\">\n                <FileSpreadsheet\n                  aria-hidden={true}\n                  className=\"h-5 w-5 text-foreground\"\n                />\n              </span>\n              <div>\n                <p className=\"text-pretty font-medium text-foreground text-xs\">\n                  Revenue_Q1_2024.xlsx\n                </p>\n                <p className=\"mt-0.5 text-pretty text-muted-foreground text-xs\">\n                  3.1 MB\n                </p>\n              </div>\n            </div>\n\n            <div className=\"flex items-center space-x-3\">\n              <Progress className=\"h-1.5\" value={45} />\n              <span className=\"text-muted-foreground text-xs\">45%</span>\n            </div>\n          </Card>\n        )}\n\n        {file && (\n          <Card className=\"relative mt-8 gap-4 bg-muted p-4 shadow-none\">\n            <Button\n              aria-label=\"Remove\"\n              className=\"absolute top-1 right-1 text-muted-foreground hover:text-foreground\"\n              onClick={resetFile}\n              size=\"icon-sm\"\n              type=\"button\"\n              variant=\"ghost\"\n            >\n              <X aria-hidden={true} className=\"h-5 w-5 shrink-0\" />\n            </Button>\n\n            <div className=\"flex items-center space-x-2.5\">\n              <span className=\"flex h-10 w-10 shrink-0 items-center justify-center rounded-sm bg-background shadow-sm ring-1 ring-border ring-inset\">\n                {getFileIcon()}\n              </span>\n              <div>\n                <p className=\"text-pretty font-medium text-foreground text-xs\">\n                  {file?.name}\n                </p>\n                <p className=\"mt-0.5 text-pretty text-muted-foreground text-xs\">\n                  {file && formatFileSize(file.size)}\n                </p>\n              </div>\n            </div>\n\n            <div className=\"flex items-center space-x-3\">\n              <Progress className=\"h-1.5\" value={progress} />\n              <span className=\"text-muted-foreground text-xs\">{progress}%</span>\n            </div>\n          </Card>\n        )}\n\n        <div className=\"mt-8 flex items-center justify-end space-x-3\">\n          <Button\n            className=\"whitespace-nowrap\"\n            disabled={!file}\n            onClick={resetFile}\n            type=\"button\"\n            variant=\"outline\"\n          >\n            Cancel\n          </Button>\n          <Button\n            className=\"whitespace-nowrap\"\n            disabled={!file || uploading || progress < 100}\n            type=\"submit\"\n          >\n            Upload\n          </Button>\n        </div>\n      </form>\n    </div>\n  );\n}\n"
    },
    {
      "path": "licenses/file-upload-04/LICENSE.txt",
      "type": "registry:file",
      "target": "@components/uiblocks/file-upload-04/LICENSE.txt",
      "content": "Includes source from Blocks.so and its bundled primitives.\nSource: https://github.com/ephraimduncan/blocks\nRevision: 3f759d5171c2391253ec4c772e9e5b3db2bc7c7f\n\nMIT License\n\nCopyright (c) 2025 Ephraim Duncan\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE.\n"
    },
    {
      "path": "components/ui/button.tsx",
      "type": "registry:component",
      "target": "@components/uiblocks/file-upload-04/shared/components/ui/button.tsx",
      "content": "import { Button as ButtonPrimitive } from '@base-ui/react/button';\nimport { cva, type VariantProps } from 'class-variance-authority';\n\nimport { cn } from \"../../lib/utils\";\n\nconst buttonVariants = cva(\n  \"group/button inline-flex shrink-0 select-none items-center justify-center whitespace-nowrap rounded-lg border border-transparent bg-clip-padding font-medium text-sm outline-none transition-all focus-visible:border-ring focus-visible:ring-3 focus-visible:ring-ring/50 active:not-aria-[haspopup]:translate-y-px disabled:pointer-events-none disabled:opacity-50 aria-invalid:border-destructive aria-invalid:ring-3 aria-invalid:ring-destructive/20 dark:aria-invalid:border-destructive/50 dark:aria-invalid:ring-destructive/40 [&_svg:not([class*='size-'])]:size-4 [&_svg]:pointer-events-none [&_svg]:shrink-0\",\n  {\n    variants: {\n      variant: {\n        default: 'bg-primary text-primary-foreground hover:bg-primary/80',\n        outline:\n          'border-border bg-background hover:bg-muted hover:text-foreground aria-expanded:bg-muted aria-expanded:text-foreground dark:border-input dark:bg-input/30 dark:hover:bg-input/50',\n        secondary:\n          'bg-secondary text-secondary-foreground hover:bg-[color-mix(in_oklch,var(--secondary),var(--foreground)_5%)] aria-expanded:bg-secondary aria-expanded:text-secondary-foreground',\n        ghost:\n          'hover:bg-muted hover:text-foreground aria-expanded:bg-muted aria-expanded:text-foreground dark:hover:bg-muted/50',\n        destructive:\n          'bg-destructive/10 text-destructive hover:bg-destructive/20 focus-visible:border-destructive/40 focus-visible:ring-destructive/20 dark:bg-destructive/20 dark:focus-visible:ring-destructive/40 dark:hover:bg-destructive/30',\n        link: 'text-primary underline-offset-4 hover:underline',\n      },\n      size: {\n        default:\n          'h-8 gap-1.5 px-2.5 has-data-[icon=inline-end]:pr-2 has-data-[icon=inline-start]:pl-2',\n        xs: \"h-6 gap-1 in-data-[slot=button-group]:rounded-lg rounded-[min(var(--radius-md),10px)] px-2 text-xs has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 [&_svg:not([class*='size-'])]:size-3\",\n        sm: \"h-7 gap-1 in-data-[slot=button-group]:rounded-lg rounded-[min(var(--radius-md),12px)] px-2.5 text-[0.8rem] has-data-[icon=inline-end]:pr-1.5 has-data-[icon=inline-start]:pl-1.5 [&_svg:not([class*='size-'])]:size-3.5\",\n        lg: 'h-9 gap-1.5 px-2.5 has-data-[icon=inline-end]:pr-2 has-data-[icon=inline-start]:pl-2',\n        icon: 'size-8',\n        'icon-xs':\n          \"size-6 in-data-[slot=button-group]:rounded-lg rounded-[min(var(--radius-md),10px)] [&_svg:not([class*='size-'])]:size-3\",\n        'icon-sm':\n          'size-7 in-data-[slot=button-group]:rounded-lg rounded-[min(var(--radius-md),12px)]',\n        'icon-lg': 'size-9',\n      },\n    },\n    defaultVariants: {\n      variant: 'default',\n      size: 'default',\n    },\n  }\n);\n\nfunction Button({\n  className,\n  variant = 'default',\n  size = 'default',\n  ...props\n}: ButtonPrimitive.Props & VariantProps<typeof buttonVariants>) {\n  return (\n    <ButtonPrimitive\n      className={cn(buttonVariants({ variant, size, className }))}\n      data-slot=\"button\"\n      {...props}\n    />\n  );\n}\n\nexport { Button, buttonVariants };\n"
    },
    {
      "path": "components/ui/card.tsx",
      "type": "registry:component",
      "target": "@components/uiblocks/file-upload-04/shared/components/ui/card.tsx",
      "content": "import type * as React from 'react';\n\nimport { cn } from \"../../lib/utils\";\n\nfunction Card({\n  className,\n  size = 'default',\n  ...props\n}: React.ComponentProps<'div'> & { size?: 'default' | 'sm' }) {\n  return (\n    <div\n      className={cn(\n        'group/card flex flex-col gap-(--card-spacing) overflow-hidden rounded-xl bg-card py-(--card-spacing) text-card-foreground text-sm ring-1 ring-foreground/10 [--card-spacing:--spacing(4)] has-[>img:first-child]:pt-0 has-data-[slot=card-footer]:pb-0 data-[size=sm]:has-data-[slot=card-footer]:pb-0 data-[size=sm]:[--card-spacing:--spacing(3)] *:[img:first-child]:rounded-t-xl *:[img:last-child]:rounded-b-xl',\n        className\n      )}\n      data-size={size}\n      data-slot=\"card\"\n      {...props}\n    />\n  );\n}\n\nfunction CardHeader({ className, ...props }: React.ComponentProps<'div'>) {\n  return (\n    <div\n      className={cn(\n        'group/card-header @container/card-header grid auto-rows-min items-start gap-1 rounded-t-xl px-(--card-spacing) has-data-[slot=card-action]:grid-cols-[1fr_auto] has-data-[slot=card-description]:grid-rows-[auto_auto] [.border-b]:pb-(--card-spacing)',\n        className\n      )}\n      data-slot=\"card-header\"\n      {...props}\n    />\n  );\n}\n\nfunction CardTitle({ className, ...props }: React.ComponentProps<'div'>) {\n  return (\n    <div\n      className={cn(\n        'font-medium text-base leading-snug group-data-[size=sm]/card:text-sm',\n        className\n      )}\n      data-slot=\"card-title\"\n      {...props}\n    />\n  );\n}\n\nfunction CardDescription({ className, ...props }: React.ComponentProps<'div'>) {\n  return (\n    <div\n      className={cn('text-muted-foreground text-sm', className)}\n      data-slot=\"card-description\"\n      {...props}\n    />\n  );\n}\n\nfunction CardAction({ className, ...props }: React.ComponentProps<'div'>) {\n  return (\n    <div\n      className={cn(\n        'col-start-2 row-span-2 row-start-1 self-start justify-self-end',\n        className\n      )}\n      data-slot=\"card-action\"\n      {...props}\n    />\n  );\n}\n\nfunction CardContent({ className, ...props }: React.ComponentProps<'div'>) {\n  return (\n    <div\n      className={cn('px-(--card-spacing)', className)}\n      data-slot=\"card-content\"\n      {...props}\n    />\n  );\n}\n\nfunction CardFooter({ className, ...props }: React.ComponentProps<'div'>) {\n  return (\n    <div\n      className={cn(\n        'flex items-center rounded-b-xl border-t bg-muted/50 p-(--card-spacing)',\n        className\n      )}\n      data-slot=\"card-footer\"\n      {...props}\n    />\n  );\n}\n\nexport {\n  Card,\n  CardHeader,\n  CardFooter,\n  CardTitle,\n  CardAction,\n  CardDescription,\n  CardContent,\n};\n"
    },
    {
      "path": "components/ui/progress.tsx",
      "type": "registry:component",
      "target": "@components/uiblocks/file-upload-04/shared/components/ui/progress.tsx",
      "content": "'use client';\n\nimport { Progress as ProgressPrimitive } from '@base-ui/react/progress';\n\nimport { cn } from \"../../lib/utils\";\n\nfunction Progress({\n  className,\n  children,\n  value,\n  ...props\n}: ProgressPrimitive.Root.Props) {\n  return (\n    <ProgressPrimitive.Root\n      className={cn('flex flex-wrap gap-3', className)}\n      data-slot=\"progress\"\n      value={value}\n      {...props}\n    >\n      {children}\n      <ProgressTrack>\n        <ProgressIndicator />\n      </ProgressTrack>\n    </ProgressPrimitive.Root>\n  );\n}\n\nfunction ProgressTrack({ className, ...props }: ProgressPrimitive.Track.Props) {\n  return (\n    <ProgressPrimitive.Track\n      className={cn(\n        'relative flex h-1 w-full items-center overflow-x-hidden rounded-full bg-muted',\n        className\n      )}\n      data-slot=\"progress-track\"\n      {...props}\n    />\n  );\n}\n\nfunction ProgressIndicator({\n  className,\n  ...props\n}: ProgressPrimitive.Indicator.Props) {\n  return (\n    <ProgressPrimitive.Indicator\n      className={cn('h-full bg-primary transition-all', className)}\n      data-slot=\"progress-indicator\"\n      {...props}\n    />\n  );\n}\n\nfunction ProgressLabel({ className, ...props }: ProgressPrimitive.Label.Props) {\n  return (\n    <ProgressPrimitive.Label\n      className={cn('font-medium text-sm', className)}\n      data-slot=\"progress-label\"\n      {...props}\n    />\n  );\n}\n\nfunction ProgressValue({ className, ...props }: ProgressPrimitive.Value.Props) {\n  return (\n    <ProgressPrimitive.Value\n      className={cn(\n        'ml-auto text-muted-foreground text-sm tabular-nums',\n        className\n      )}\n      data-slot=\"progress-value\"\n      {...props}\n    />\n  );\n}\n\nexport {\n  Progress,\n  ProgressTrack,\n  ProgressIndicator,\n  ProgressLabel,\n  ProgressValue,\n};\n"
    },
    {
      "path": "lib/utils.ts",
      "type": "registry:component",
      "target": "@components/uiblocks/file-upload-04/shared/lib/utils.ts",
      "content": "export { cn } from \"cn\";\n"
    }
  ],
  "categories": [
    "file-upload",
    "application",
    "clean-saas"
  ],
  "docs": "Import the default component from @components/uiblocks/file-upload-04/file-upload-04.tsx. React 19, Tailwind CSS 4, and the standard shadcn CSS theme variables are required. This block is framework-independent React and works in TanStack Start, Vite, and Next.js projects. Connect links or navigation callbacks to your host application. Demo avatars use public image URLs; replace them with your own assets. Demo handlers must be connected to your product. See https://uiblocks.org/file-upload/file-upload-04 for content guidelines and source attribution.",
  "meta": {
    "kind": "block",
    "version": "0.1.0",
    "source": {
      "name": "Blocks.so",
      "url": "https://github.com/ephraimduncan/blocks",
      "license": "MIT",
      "author": "Ephraim Duncan",
      "revision": "3f759d5171c2391253ec4c772e9e5b3db2bc7c7f"
    },
    "license": "MIT",
    "style": "clean-saas",
    "pageType": "application",
    "featured": false,
    "tags": [
      "upload",
      "file",
      "dropzone",
      "media",
      "上传",
      "文件",
      "拖拽",
      "工作台"
    ],
    "contentGuidelines": [
      "Connect file validation and upload callbacks to your own service.",
      "Test long filenames, rejected files, and the empty state."
    ],
    "recommendedWith": [],
    "entry": "@components/uiblocks/file-upload-04/file-upload-04.tsx",
    "exportName": "default",
    "frameworkIndependent": true,
    "frameworkDependencies": [],
    "compatibleHosts": [
      "react",
      "vite",
      "tanstack-start",
      "nextjs"
    ],
    "requirements": {
      "react": ">=19",
      "tailwind": ">=4"
    },
    "previewUrl": "https://uiblocks.org/preview/file-upload-04"
  }
}