# react-example-link-mark-view

> An example showing how to render a mark as a custom component.

A shadcn/ui block from the [@prosekit](https://prosekit.dev) registry, listed on [shadcn.exchange](https://shadcn.exchange/r/prosekit/react-example-link-mark-view).

- Page, with a live preview: https://shadcn.exchange/r/prosekit/react-example-link-mark-view
- Screenshot: https://abzjhwgwpdpz7ua5.public.blob.vercel-storage.com/shots/prosekit/react-example-link-mark-view-light-dac91f8498d043e0.png
- Registry item: https://prosekit.dev/r/react-example-link-mark-view.json
- Listed: 2026-10-13, source last changed 2026-10-13

## Install

```bash
npx shadcn@latest add https://prosekit.dev/r/react-example-link-mark-view.json
```

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

## Dependencies

- npm packages: `prosekit`
- Registry items: `https://unpkg.com/prosekit-registry/dist/r/react-sample-sample-doc-link-mark-view.json`

## Files

### `registry/src/react/examples/link-mark-view/editor.tsx`

```tsx
'use client'

import 'prosekit/basic/style.css'
import 'prosekit/basic/typography.css'

import { createEditor, type NodeJSON } from 'prosekit/core'
import { ProseKit } from 'prosekit/react'
import { useMemo } from 'react'

import { sampleContent } from '../../sample/sample-doc-link-mark-view.ts'

import { defineExtension } from './extension.ts'

interface EditorProps {
  initialContent?: NodeJSON
}

export default function Editor(props: EditorProps) {
  const defaultContent = props.initialContent ?? sampleContent
  const editor = useMemo(() => {
    const extension = defineExtension()
    return createEditor({ extension, defaultContent })
  }, [defaultContent])

  return (
    <ProseKit editor={editor}>
      <div className="box-border h-full w-full min-h-36 overflow-y-hidden overflow-x-hidden rounded-md border border-solid border-gray-200 dark:border-gray-700 shadow-sm flex flex-col bg-[canvas] text-black dark:text-white">
        <div className="relative w-full flex-1 box-border overflow-y-auto">
          <div ref={editor.mount} className="ProseMirror box-border min-h-full px-[max(4rem,calc(50%-20rem))] py-8 outline-hidden outline-0 [&_span[data-mention=user]]:text-blue-500 [&_span[data-mention=tag]]:text-violet-500"></div>
        </div>
      </div>
    </ProseKit>
  )
}
```

### `registry/src/react/examples/link-mark-view/extension.ts`

```ts
import { defineBasicExtension } from 'prosekit/basic'
import { union } from 'prosekit/core'
import { defineReactMarkView } from 'prosekit/react'

import LinkView from './link-view.tsx'

export function defineExtension() {
  return union(
    defineBasicExtension(),
    defineReactMarkView({
      name: 'link',
      component: LinkView,
    }),
  )
}

export type EditorExtension = ReturnType<typeof defineExtension>
```

### `registry/src/react/examples/link-mark-view/index.ts`

```ts
export { default as ExampleEditor } from './editor.tsx'
```

### `registry/src/react/examples/link-mark-view/link-view.tsx`

```tsx
'use client'

import type { ReactMarkViewProps } from 'prosekit/react'
import { useEffect, useState } from 'react'

const colors = [
  '#f06292',
  '#ba68c8',
  '#9575cd',
  '#7986cb',
  '#64b5f6',
  '#4fc3f7',
  '#4dd0e1',
  '#4db6ac',
  '#81c784',
  '#aed581',
  '#ffb74d',
  '#ffa726',
  '#ff8a65',
  '#d4e157',
  '#ffd54f',
  '#ffecb3',
]

function pickRandomColor() {
  return colors[Math.floor(Math.random() * colors.length)]
}

export default function Link(props: ReactMarkViewProps) {
  const [color, setColor] = useState(colors[0])
  const href = props.mark.attrs.href as string

  useEffect(() => {
    const interval = setInterval(() => {
      setColor(pickRandomColor())
    }, 1000)
    return () => clearInterval(interval)
  }, [])

  return (
    <a
      href={href}
      ref={props.contentRef}
      style={{ color, transition: 'color 1s ease-in-out' }}
    >
    </a>
  )
}
```