| import React, { Fragment } from 'react' |
| import { Element } from 'slate' |
| import { Key } from 'slate-dom' |
| import { RenderChunkProps } from './editable' |
| import { |
| Chunk as TChunk, |
| ChunkAncestor as TChunkAncestor, |
| ChunkTree as TChunkTree, |
| } from '../chunking' |
|
|
| const defaultRenderChunk = ({ children }: RenderChunkProps) => children |
|
|
| const ChunkAncestor = <C extends TChunkAncestor>(props: { |
| root: TChunkTree |
| ancestor: C |
| renderElement: (node: Element, index: number, key: Key) => JSX.Element |
| renderChunk?: (props: RenderChunkProps) => JSX.Element |
| }) => { |
| const { |
| root, |
| ancestor, |
| renderElement, |
| renderChunk = defaultRenderChunk, |
| } = props |
|
|
| return ancestor.children.map(chunkNode => { |
| if (chunkNode.type === 'chunk') { |
| const key = chunkNode.key.id |
|
|
| const renderedChunk = renderChunk({ |
| highest: ancestor === root, |
| lowest: chunkNode.children.some(c => c.type === 'leaf'), |
| attributes: { 'data-slate-chunk': true }, |
| children: ( |
| <MemoizedChunk |
| root={root} |
| ancestor={chunkNode} |
| renderElement={renderElement} |
| renderChunk={renderChunk} |
| /> |
| ), |
| }) |
|
|
| return <Fragment key={key}>{renderedChunk}</Fragment> |
| } |
|
|
| |
| const element = chunkNode.node as Element |
|
|
| return renderElement(element, chunkNode.index, chunkNode.key) |
| }) |
| } |
|
|
| const ChunkTree = ChunkAncestor<TChunkTree> |
|
|
| const MemoizedChunk = React.memo( |
| ChunkAncestor<TChunk>, |
| (prev, next) => |
| prev.root === next.root && |
| prev.renderElement === next.renderElement && |
| prev.renderChunk === next.renderChunk && |
| !next.root.modifiedChunks.has(next.ancestor) |
| ) |
|
|
| export default ChunkTree |
|
|
