react

@prosemirror-adapter/react

React adapter for ProseMirror.

Example

You can view the example in prosemirror-adapter/examples/react.

Getting Started

Install the package

npm install @prosemirror-adapter/react

Wrap your component with provider

import { ProsemirrorAdapterProvider } from '@prosemirror-adapter/react'
import { YourAwesomeEditor } from 'somewhere'

export const Component = () => {
  return (
    <ProsemirrorAdapterProvider>
      <YourAwesomeEditor />
    </ProsemirrorAdapterProvider>
  )
}

Play with node view

In this section we will implement a node view for paragraph node.

Build component for node view

import { useNodeViewContext } from '@prosemirror-adapter/react'

const Paragraph = () => {
  const { contentRef, selected } = useNodeViewContext()
  return <div style={{ outline: selected ? 'blue solid 1px' : 'none' }} role="presentation" ref={contentRef} />
}

Bind node view components with prosemirror

import { useNodeViewFactory } from '@prosemirror-adapter/react'
import type { FC } from 'react'
import { useCallback, useRef } from 'react'

import { Paragraph } from './Paragraph'

export const YourAwesomeEditor: FC = () => {
  const nodeViewFactory = useNodeViewFactory()

  const editorRef = useCallback(
    (element: HTMLDivElement) => {
      if (!element || element.firstChild)
        return

      const editorView = new EditorView(element, {
        state: YourProsemirrorEditorState,
        nodeViews: {
          paragraph: nodeViewFactory({
            component: Paragraph,
            // Optional: add some options
            as: 'div',
            contentAs: 'p',
          }),
        }
      })
    },
    [nodeViewFactory],
  )

  return <div className="editor" ref={editorRef} />
}

🚀 Congratulations! You have built your first react node view with prosemirror-adapter.

Play with plugin view

In this section we will implement a plugin view that will display the size of the document.

Build component for plugin view

import { usePluginViewContext } from '@prosemirror-adapter/react'

const Size = () => {
  const { view } = usePluginViewContext()
  const size = view.state.doc.nodeSize
  return <div>Size for document: {size}</div>
}

Bind plugin view components with prosemirror

import { usePluginViewFactory } from '@prosemirror-adapter/react'
import type { FC } from 'react'
import { useCallback, useRef } from 'react'
import { Plugin } from 'prosemirror-state'

import { Paragraph } from './Paragraph'

export const YourAwesomeEditor: FC = () => {
  const pluginViewFactory = usePluginViewFactory()

  const editorRef = useCallback(
    (element: HTMLDivElement) => {
      if (!element || element.firstChild)
        return

      const editorView = new EditorView(element, {
        state: EditorState.create({
          schema: YourProsemirrorSchema,
          plugins: [
            new Plugin({
              view: pluginViewFactory({
                component: Size,
              }),
            }),
          ]
        })
      })
    },
    [pluginViewFactory],
  )

  return <div className="editor" ref={editorRef} />
}

🚀 Congratulations! You have built your first react plugin view with prosemirror-adapter.

Play with widget view

In this section we will implement a widget view that will add hashes for heading when selected.

Build component for widget decoration view

import { useWidgetViewContext } from '@prosemirror-adapter/react'

export const Hashes = () => {
  const { spec } = useWidgetViewContext()
  const level = spec?.level
  const hashes = Array(level || 0).fill('#').join('')

  return <span style={{ color: 'blue', marginRight: 6 }}>{hashes}</span>
}

Bind widget view components with prosemirror

import { useWidgetViewFactory } from '@prosemirror-adapter/react'
import type { FC } from 'react'
import { useCallback, useRef } from 'react'
import { Plugin } from 'prosemirror-state'

import { Hashes } from './Hashes'

export const YourAwesomeEditor: FC = () => {
  const widgetViewFactory = useWidgetViewFactory()

  const editorRef = useCallback(
    (element: HTMLDivElement) => {
      if (!element || element.firstChild)
        return

      const getHashWidget = widgetViewFactory({
        as: 'i',
        component: Hashes,
      })

      const editorView = new EditorView(element, {
        state: EditorState.create({
          schema: YourProsemirrorSchema,
          plugins: [
            new Plugin({
              props: {
                decorations(state) {
                  const { $from } = state.selection
                  const node = $from.node()
                  if (node.type.name !== 'heading')
                    return DecorationSet.empty

                  const widget = getHashWidget($from.before() + 1, {
                    side: -1,
                    level: node.attrs.level,
                  })

                  return DecorationSet.create(state.doc, [widget])
                },
              },
            }),
          ]
        })
      })
    },
    [widgetViewFactory],
  )

  return <div className="editor" ref={editorRef} />
}

🚀 Congratulations! You have built your first react widget view with prosemirror-adapter.

API

Node view API

useNodeViewFactory: () => (options: NodeViewFactoryOptions) => NodeView

type DOMSpec = string | HTMLElement | ((node: Node) => HTMLElement)

interface NodeViewFactoryOptions {
  // Component
  component: ReactComponent

  // The DOM element to use as the root node of the node view.
  as?: DOMSpec
  // The DOM element that contains the content of the node.
  contentAs?: DOMSpec

  // Overrides: this part is equal to properties of [NodeView](https://prosemirror.net/docs/ref/#view.NodeView)
  update?: (node: Node, decorations: readonly Decoration[], innerDecorations: DecorationSource) => boolean | void
  ignoreMutation?: (mutation: ViewMutationRecord) => boolean | void
  selectNode?: () => void
  deselectNode?: () => void
  setSelection?: (anchor: number, head: number, root: Document | ShadowRoot) => void
  stopEvent?: (event: Event) => boolean
  destroy?: () => void

  // Called when the node view is updated.
  onUpdate?: () => void
}

useNodeViewContext: () => NodeViewContext

interface NodeViewContext {
  // The DOM element that contains the content of the node.
  contentRef: NodeViewContentRef

  // The prosemirror editor view.
  view: EditorView

  // Get prosemirror position of current node view.
  getPos: () => number | undefined

  // Set node.attrs of current node.
  setAttrs: (attrs: Attrs) => void

  // The prosemirror node for current node.
  node: Node

  // The prosemirror decorations for current node.
  decorations: readonly Decoration[]

  // The prosemirror inner decorations for current node.
  innerDecorations: DecorationSource

  // Whether the node is selected.
  selected: boolean
}

Plugin view API

usePluginViewFactory: () => (options: PluginViewFactoryOptions) => PluginView

interface PluginViewFactoryOptions {
  // Component
  component: ReactComponent

  // The DOM element to use as the root node of the plugin view.
  // The `viewDOM` here means `EditorState.view.dom`.
  // By default, it will be `EditorState.view.dom.parentElement`.
  root?: (viewDOM: HTMLElement) => HTMLElement

  // Overrides: this part is equal to properties of [PluginView](https://prosemirror.net/docs/ref/#state.PluginView)
  update?: (view: EditorView, prevState: EditorState) => void
  destroy?: () => void
}

usePluginViewContext: () => PluginViewContext

interface PluginViewContext {
  // The prosemirror editor view.
  view: EditorView

  // The previously prosemirror editor state.
  // Will be `undefined` when the plugin view is created.
  prevState?: EditorState
}

Widget view API

useWidgetViewFactory: () => (options: WidgetViewFactoryOptions) => WidgetDecorationFactory

type WidgetDecorationFactory = (pos: number, spec?: WidgetDecorationSpec) => Decoration

interface WidgetViewFactoryOptions {
  // Component
  component: ReactComponent

  // The DOM element to use as the root node of the widget view.
  as: string | HTMLElement
}

useWidgetViewContext: () => WidgetViewContext

interface WidgetViewContext {
  // The prosemirror editor view.
  view: EditorView

  // Get the position of the widget.
  getPos: () => number | undefined

  // Get the [spec](https://prosemirror.net/docs/ref/#view.Decoration^widget^spec) of the widget.
  spec?: WidgetDecorationSpec
}

Contributing

Follow our contribution guide to learn how to contribute to prosemirror-adapter.

License

MIT