Example: link

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

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

import { defineExtension } from './extension'
import InlineMenu from './inline-menu'

export default function Editor() {
  const editor = useMemo(() => {
    return createEditor({ extension: defineExtension(), 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 shadow dark:border-zinc-700 flex flex-col bg-white dark:bg-gray-950'>
        <InlineMenu />
        <div className='relative w-full flex-1 box-border overflow-y-scroll'>
          <div ref={editor.mount} className='ProseMirror box-border min-h-full px-[max(4rem,_calc(50%-20rem))] py-8 outline-none outline-0 [&_span[data-mention="user"]]:text-blue-500 [&_span[data-mention="tag"]]:text-violet-500'></div>
        </div>
      </div>
    </ProseKit>
  )
}

const defaultContent = `
  <p>Here is an <a href="https://www.example.com">example link</a>
`

import {
  defineBaseKeymap,
  defineDoc,
  defineParagraph,
  defineText,
  union,
} from 'prosekit/core'
import { defineLink } from 'prosekit/extensions/link'

export function defineExtension() {
  return union(
    defineBaseKeymap(),
    defineDoc(),
    defineText(),
    defineParagraph(),
    defineLink(),
  )
}

export type EditorExtension = ReturnType<typeof defineExtension>

import type { LinkAttrs } from 'prosekit/extensions/link'
import type { EditorState } from 'prosekit/pm/state'
import { useEditor } from 'prosekit/react'
import { InlinePopover } from 'prosekit/react/inline-popover'
import { useState } from 'react'

import Button from './button'
import type { EditorExtension } from './extension'

export default function InlineMenu() {
  const editor = useEditor<EditorExtension>({ update: true })

  const [linkMenuOpen, setLinkMenuOpen] = useState(false)
  const toggleLinkMenuOpen = () => setLinkMenuOpen((open) => !open)

  const getCurrentLink = (state: EditorState): string | undefined => {
    const { $from } = state.selection
    const marks = $from.marksAcross($from)
    if (!marks) {
      return
    }
    for (const mark of marks) {
      if (mark.type.name === 'link') {
        return (mark.attrs as LinkAttrs).href
      }
    }
  }

  const handleLinkUpdate = (href?: string) => {
    if (href) {
      editor.commands.addLink({ href })
    } else {
      editor.commands.removeLink()
    }

    setLinkMenuOpen(false)
    editor.focus()
  }

  return (
    <>
      <InlinePopover
        data-testid="inline-menu-main"
        className='z-10 box-border border border-gray-200 dark:border-gray-800 bg-white dark:bg-gray-950 shadow-lg [&:not([data-state])]:hidden relative flex min-w-[8rem] space-x-1 overflow-auto whitespace-nowrap rounded-md p-1'
        onOpenChange={(open) => {
          if (!open) {
            setLinkMenuOpen(false)
          }
        }}
      >
        {editor.commands.addLink.canExec({ href: '' }) && (
          <Button
            pressed={editor.marks.link.isActive()}
            onClick={() => {
              editor.commands.expandLink()
              toggleLinkMenuOpen()
            }}
            tooltip="Link"
          >
            <div className='i-lucide-link h-5 w-5'></div>
          </Button>
        )}
      </InlinePopover>

      <InlinePopover
        placement={'bottom'}
        defaultOpen={false}
        open={linkMenuOpen}
        onOpenChange={setLinkMenuOpen}
        data-testid="inline-menu-link"
        className='z-10 box-border border border-gray-200 dark:border-gray-800 bg-white dark:bg-gray-950 shadow-lg [&:not([data-state])]:hidden relative flex flex-col w-xs rounded-lg p-4 gap-y-2 items-stretch'
      >
        {linkMenuOpen && (
          <form
            onSubmit={(event) => {
              event.preventDefault()
              const target = event.target as HTMLFormElement | null
              const href = target?.querySelector('input')?.value?.trim()
              handleLinkUpdate(href)
            }}
          >
            <input
              placeholder="Paste the link..."
              defaultValue={getCurrentLink(editor.state)}
              className='flex h-9 rounded-md w-full bg-white dark:bg-gray-950 px-3 py-2 text-sm placeholder:text-gray-500 dark:placeholder:text-gray-500 transition border box-border border-gray-200 dark:border-gray-800 border-solid ring-0 ring-transparent focus-visible:ring-2 focus-visible:ring-gray-900 dark:focus-visible:ring-gray-300 focus-visible:ring-offset-0 outline-none focus-visible:outline-none file:border-0 file:bg-transparent file:text-sm file:font-medium disabled:cursor-not-allowed disabled:opacity-50'
            >
            </input>
          </form>
        )}
        {editor.marks.link.isActive() && (
          <button
            onClick={() => handleLinkUpdate()}
            onMouseDown={(event) => event.preventDefault()}
            className='inline-flex items-center justify-center whitespace-nowrap rounded-md text-sm font-medium ring-offset-white dark:ring-offset-gray-950 transition-colors focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-gray-900 dark:focus-visible:ring-gray-300 focus-visible:ring-offset-2 disabled:pointer-events-none disabled:opacity-50 border-0 bg-gray-900 dark:bg-gray-50 text-gray-50 dark:text-gray-900 hover:bg-gray-900/90 dark:hover:bg-gray-50/90 h-9 px-3'
          >
            Remove link
          </button>
        )}
      </InlinePopover>
    </>
  )
}

import {
  TooltipContent,
  TooltipRoot,
  TooltipTrigger,
} from 'prosekit/react/tooltip'
import type { ReactNode } from 'react'

export default function Button({
  pressed,
  disabled,
  onClick,
  tooltip,
  children,
}: {
  pressed?: boolean
  disabled?: boolean
  onClick?: VoidFunction
  tooltip?: string
  children: ReactNode
}) {
  return (
    <TooltipRoot>
      <TooltipTrigger className='block'>
        <button
          data-state={pressed ? 'on' : 'off'}
          disabled={disabled}
          onClick={() => onClick?.()}
          onMouseDown={(event) => event.preventDefault()}
          className='outline-unset focus-visible:outline-unset flex items-center justify-center rounded-md p-2 font-medium transition focus-visible:ring-2 text-sm focus-visible:ring-gray-900 dark:focus-visible:ring-gray-300 disabled:pointer-events-none min-w-9 min-h-9 disabled:opacity-50 hover:disabled:opacity-50 bg-transparent hover:bg-gray-100 dark:hover:bg-gray-800 data-[state=on]:bg-gray-200 dark:data-[state=on]:bg-gray-700'
        >
          {children}
          {tooltip ? <span className="sr-only">{tooltip}</span> : null}
        </button>
      </TooltipTrigger>
      {tooltip
        ? (
          <TooltipContent className='z-50 overflow-hidden rounded-md border border-solid bg-gray-900 dark:bg-gray-50 px-3 py-1.5 text-xs text-gray-50 dark:text-gray-900 shadow-sm [&:not([data-state])]:hidden will-change-transform data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=open]:fade-in-0 data-[state=closed]:fade-out-0 data-[state=open]:zoom-in-95 data-[state=closed]:zoom-out-95 data-[state=open]:animate-duration-150 data-[state=closed]:animate-duration-200 data-[side=bottom]:slide-in-from-top-2 data-[side=bottom]:slide-out-to-top-2 data-[side=left]:slide-in-from-right-2 data-[side=left]:slide-out-to-right-2 data-[side=right]:slide-in-from-left-2 data-[side=right]:slide-out-to-left-2 data-[side=top]:slide-in-from-bottom-2 data-[side=top]:slide-out-to-bottom-2'>
            {tooltip}
          </TooltipContent>
        )
        : null}
    </TooltipRoot>
  )
}