| import React, { |
| Component, |
| ComponentType, |
| ContextType, |
| ReactNode, |
| RefObject, |
| } from 'react' |
| import { EditorContext } from '../../hooks/use-slate-static' |
| import { IS_ANDROID } from 'slate-dom' |
| import { |
| createRestoreDomManager, |
| RestoreDOMManager, |
| } from './restore-dom-manager' |
|
|
| const MUTATION_OBSERVER_CONFIG: MutationObserverInit = { |
| subtree: true, |
| childList: true, |
| characterData: true, |
| characterDataOldValue: true, |
| } |
|
|
| type RestoreDOMProps = { |
| children?: ReactNode |
| receivedUserInput: RefObject<boolean> |
| node: RefObject<HTMLDivElement> |
| } |
|
|
| |
| |
| class RestoreDOMComponent extends Component<RestoreDOMProps> { |
| static contextType = EditorContext |
| context: ContextType<typeof EditorContext> = null |
|
|
| private manager: RestoreDOMManager | null = null |
| private mutationObserver: MutationObserver | null = null |
|
|
| observe() { |
| const { node } = this.props |
| if (!node.current) { |
| throw new Error('Failed to attach MutationObserver, `node` is undefined') |
| } |
|
|
| this.mutationObserver?.observe(node.current, MUTATION_OBSERVER_CONFIG) |
| } |
|
|
| componentDidMount() { |
| const { receivedUserInput } = this.props |
| const editor = this.context! |
|
|
| this.manager = createRestoreDomManager(editor, receivedUserInput) |
| this.mutationObserver = new MutationObserver(this.manager.registerMutations) |
|
|
| this.observe() |
| } |
|
|
| getSnapshotBeforeUpdate() { |
| const pendingMutations = this.mutationObserver?.takeRecords() |
| if (pendingMutations?.length) { |
| this.manager?.registerMutations(pendingMutations) |
| } |
|
|
| this.mutationObserver?.disconnect() |
| this.manager?.restoreDOM() |
|
|
| return null |
| } |
|
|
| componentDidUpdate() { |
| this.manager?.clear() |
| this.observe() |
| } |
|
|
| componentWillUnmount() { |
| this.mutationObserver?.disconnect() |
| } |
|
|
| render() { |
| return this.props.children |
| } |
| } |
|
|
| export const RestoreDOM: ComponentType<RestoreDOMProps> = IS_ANDROID |
| ? RestoreDOMComponent |
| : ({ children }) => <>{children}</> |
|
|
