Building a Versatile Rich Text Editor Wrapper in React

This challenge involves creating a reusable and flexible React component that wraps a rich text editor. The goal is to abstract away the complexities of a specific editor library, allowing users to easily integrate rich text editing functionality into their applications with customizable features and controlled state. This is crucial for applications requiring dynamic content creation, such as blog posts, emails, or collaborative document editors.

Problem Description

You are tasked with developing a React component, RichTextEditorWrapper, which acts as a wrapper for a popular rich text editor library (you can choose one, e.g., Draft.js, TinyMCE, Quill.js, etc.). The wrapper should provide a clean API for developers to use, managing the editor's state and exposing customization options.

Key Requirements:

1. Component Structure: Create a functional React component RichTextEditorWrapper that accepts props.
2. Editor Integration: Integrate a chosen rich text editor library within this component.
3. State Management: Manage the editor's content (e.g., HTML or a structured format depending on the library) internally or externally via props.
4. Content Control:
   • Accept an initial content value via a value prop.
   • Allow the user to update the content and notify the parent component of changes via an onChange prop.
5. Customization:
   • Provide a way to configure toolbar buttons (e.g., bold, italic, underline, headings, lists).
   • Allow for disabling or enabling specific formatting options.
6. Styling: The wrapper should be stylable through CSS classes or inline styles.
7. Accessibility: Ensure basic accessibility considerations are met for the editor and its controls.

Expected Behavior:

• When the component mounts, it should render the rich text editor with the content provided in the value prop.
• When the user interacts with the editor (e.g., typing, applying formatting), the onChange prop should be called with the updated content.
• The available toolbar buttons should be configurable through props.
• The editor should gracefully handle empty content.

Edge Cases:

• Handling of complex HTML content that might not be directly supported by all editor features.
• Rapid or frequent onChange events.
• Editor being initially empty.

Examples

Example 1: Basic Usage

// Parent Component
import React, { useState } from 'react';
import RichTextEditorWrapper from './RichTextEditorWrapper';

function App() {
  const [editorContent, setEditorContent] = useState('<p>Hello, world!</p>');

  const handleContentChange = (newContent) => {
    setEditorContent(newContent);
  };

  return (
    <div>
      <h1>My Document</h1>
      <RichTextEditorWrapper
        value={editorContent}
        onChange={handleContentChange}
        placeholder="Start typing here..."
      />
      <h2>Current Content:</h2>
      <div dangerouslySetInnerHTML={{ __html: editorContent }} />
    </div>
  );
}

export default App;

Input: (as shown in the parent component)
Output: A rendered rich text editor with "Hello, world!" pre-populated and a functional toolbar. When "Hello, world!" is made bold, the `editorContent` state in the `App` component updates to reflect the bolding, and the displayed "Current Content" also updates.
Explanation: The `RichTextEditorWrapper` initializes with the provided `value`. User interactions trigger the `onChange` callback, updating the parent component's state, which in turn re-renders the editor with the latest content.

Example 2: Configured Toolbar

// Parent Component
import React, { useState } from 'react';
import RichTextEditorWrapper from './RichTextEditorWrapper';

function App() {
  const [editorContent, setEditorContent] = useState('');

  const handleContentChange = (newContent) => {
    setEditorContent(newContent);
  };

  const toolbarOptions = {
    bold: true,
    italic: true,
    underline: false, // Disable underline
    h1: true,
    h2: true,
    unorderedList: true,
    orderedList: false, // Disable ordered list
  };

  return (
    <div>
      <h1>My Article</h1>
      <RichTextEditorWrapper
        value={editorContent}
        onChange={handleContentChange}
        toolbarConfig={toolbarOptions}
        placeholder="Write your article..."
      />
    </div>
  );
}

export default App;

Input: (as shown in the parent component)
Output: A rich text editor where only Bold, Italic, H1, H2, and Unordered List buttons are visible and active in the toolbar. The Underline and Ordered List buttons are absent or disabled.
Explanation: The `toolbarConfig` prop dictates which formatting options are exposed to the user.

Example 3: Empty Initial State

// Parent Component
import React, { useState } from 'react';
import RichTextEditorWrapper from './RichTextEditorWrapper';

function App() {
  const [editorContent, setEditorContent] = useState(''); // Start empty

  const handleContentChange = (newContent) => {
    setEditorContent(newContent);
  };

  return (
    <div>
      <h1>New Post</h1>
      <RichTextEditorWrapper
        value={editorContent}
        onChange={handleContentChange}
        placeholder="Enter your content here."
      />
    </div>
  );
}

export default App;

Input: (as shown in the parent component)
Output: An empty rich text editor instance, displaying the placeholder text. Any typing or formatting applied will update the state.
Explanation: The wrapper correctly initializes and renders an empty editor when the `value` prop is an empty string.

Constraints

• The chosen rich text editor library must be compatible with React.
• The wrapper component should be reasonably performant, especially concerning onChange events. Avoid unnecessary re-renders.
• The output of the onChange prop should ideally be a string representing the rich text content (e.g., HTML), or a structured format that can be easily serialized to HTML.
• The solution should be implemented in TypeScript, leveraging type safety.

Notes

• You will need to choose a rich text editor library and install it (e.g., npm install draft-js draftjs-to-html react-draft-wysiwyg or npm install tinymce @tinymce/tinymce-react).
• Consider how you will pass the toolbar configuration. A simple object mapping option names to booleans is a good starting point.
• Think about how to handle the rich text editor's internal state versus the controlled state provided by the parent component.
• Accessibility considerations might include proper ARIA attributes for editor controls and ensuring keyboard navigation works as expected.