tiptap/docs/guide/node-views/react.md
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docs(react): add documentation for contentDOMElementTag (#4348)
* docs(react): add documentation for contentDOMElementTag
* fix naming for node view in react docs
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Node views with React

Introduction

Using Vanilla JavaScript can feel complex if you are used to work in React. Good news: You can use regular React components in your node views, too. There is just a little bit you need to know, but lets go through this one by one.

Render a React component

Here is what you need to do to render React components inside your editor:

  1. Create a node extension
  2. Create a React component
  3. Pass that component to the provided ReactNodeViewRenderer
  4. Register it with addNodeView()
  5. Configure Tiptap to use your new node extension

This is how your node extension could look like:

import { Node } from '@tiptap/core'
import { ReactNodeViewRenderer } from '@tiptap/react'
import Component from './Component.jsx'

export default Node.create({
  // configuration …

  addNodeView() {
    return ReactNodeViewRenderer(Component)
  },
})

There is a little bit of magic required to make this work. But dont worry, we provide a wrapper component you can use to get started easily. Dont forget to add it to your custom React component, like shown below:

<NodeViewWrapper className="react-component">
  React Component
</NodeViewWrapper>

Got it? Lets see it in action. Feel free to copy the below example to get started.

https://embed.tiptap.dev/preview/GuideNodeViews/ReactComponent

That component doesnt interact with the editor, though. Time to wire it up.

Access node attributes

The ReactNodeViewRenderer which you use in your node extension, passes a few very helpful props to your custom React component. One of them is the node prop. Lets say you have added an attribute named count to your node extension (like we did in the above example) you could access it like this:

props.node.attrs.count

Update node attributes

You can even update node attributes from your node, with the help of the updateAttributes prop passed to your component. Pass an object with updated attributes to the updateAttributes prop:

export default props => {
  const increase = () => {
    props.updateAttributes({
      count: props.node.attrs.count + 1,
    })
  }

  // …
}

And yes, all of that is reactive, too. A pretty seemless communication, isnt it?

Adding a content editable

There is another component called NodeViewContent which helps you adding editable content to your node view. Here is an example:

import React from 'react'
import { NodeViewWrapper, NodeViewContent } from '@tiptap/react'

export default () => {
  return (
    <NodeViewWrapper className="react-component-with-content">
      <span className="label" contentEditable={false}>React Component</span>

      <NodeViewContent className="content" />
    </NodeViewWrapper>
  )
}

You dont need to add those className attributes, feel free to remove them or pass other class names. Try it out in the following example:

https://embed.tiptap.dev/preview/GuideNodeViews/ReactComponentContent

Keep in mind that this content is rendered by Tiptap. That means you need to tell what kind of content is allowed, for example with content: 'inline*' in your node extension (thats what we use in the above example).

The NodeViewWrapper and NodeViewContent components render a <div> HTML tag (<span> for inline nodes), but you can change that. For example <NodeViewContent as="p"> should render a paragraph. One limitation though: That tag must not change during runtime.

Changing the default content tag for a node view

By default a node view rendered by ReactNodeViewRenderer will always have a wrapping div inside. If you want to change the type of this node, you can the contentDOMElementTag to the ReactNodeViewRenderer options:

// this will turn the div into a header tag
return ReactNodeViewRenderer(Component, { contentDOMElementTag: 'header' })

All available props

Here is the full list of what props you can expect:

editor

The editor instance

node

The current node

decorations

An array of decorations

selected

true when there is a NodeSelection at the current node view

extension

Access to the node extension, for example to get options

getPos()

Get the document position of the current node

updateAttributes()

Update attributes of the current node

deleteNode()

Delete the current node

Dragging

To make your node views draggable, set draggable: true in the extension and add data-drag-handle to the DOM element that should function as the drag handle.