请求将DraftJS类组件转换为React函数式组件

下面是转换后的完整函数式组件代码：

import React, { useState, useRef } from 'react';
import { convertFromRaw, EditorState } from 'draft-js';

import Editor, { composeDecorators } from '@draft-js-plugins/editor';

import createImagePlugin from '@draft-js-plugins/image';
import createFocusPlugin from '@draft-js-plugins/focus';
import createBlockDndPlugin from '@draft-js-plugins/drag-n-drop';

import editorStyles from './editorStyles.module.css';

const focusPlugin = createFocusPlugin();
const blockDndPlugin = createBlockDndPlugin();

const decorator = composeDecorators(
  focusPlugin.decorator,
  blockDndPlugin.decorator
);
const imagePlugin = createImagePlugin({ decorator });

const plugins = [blockDndPlugin, focusPlugin, imagePlugin];

/* eslint-disable */
const initialState = {
  entityMap: {
    0: {
      type: 'IMAGE',
      mutability: 'IMMUTABLE',
      data: {
        src: '/images/canada-landscape-small.jpg',
      },
    },
  },
  blocks: [
    {
      key: '9gm3s',
      text:
        'You can have images in your text field which are draggable. Hover over the image press down your mouse button and drag it to another position inside the editor.',
      type: 'unstyled',
      depth: 0,
      inlineStyleRanges: [],
      entityRanges: [],
      data: {},
    },
    {
      key: 'ov7r',
      text: ' ',
      type: 'atomic',
      depth: 0,
      inlineStyleRanges: [],
      entityRanges: [
        {
          offset: 0,
          length: 1,
          key: 0,
        },
      ],
      data: {},
    },
    {
      key: 'e23a8',
      text:
        'You can checkout the alignment tool plugin documentation to see how to build a compatible block plugin …',
      type: 'unstyled',
      depth: 0,
      inlineStyleRanges: [],
      entityRanges: [],
      data: {},
    },
  ],
};
/* eslint-enable */

export default function CustomImageEditor() {
  const [editorState, setEditorState] = useState(
    EditorState.createWithContent(convertFromRaw(initialState))
  );
  const editorRef = useRef(null);

  const onChange = (newEditorState) => {
    setEditorState(newEditorState);
  };

  const focus = () => {
    editorRef.current?.focus();
  };

  return (
    <div>
      <div className={editorStyles.editor} onClick={focus}>
        <Editor
          editorState={editorState}
          onChange={onChange}
          plugins={plugins}
          ref={editorRef}
        />
      </div>
    </div>
  );
}

关键转换说明 #

• 用useState钩子初始化并管理editorState，替代类组件的this.state
• 用useRef钩子创建editorRef，获取编辑器DOM实例，替代类组件中通过this.editor存储实例的方式
• 将类组件的类方法onChange和focus转换为函数组件内部的普通函数
• 编辑器的ref直接绑定到editorRef，简化实例获取逻辑

内容的提问来源于stack exchange，提问作者Huzaifa Khalid