Editor loses focus when updating state

[olaven]

Hi! We are looking into using this package for an application and it looks promising! Thanks!
This may be due to an understanding, but we are having some issues.

Given the example below, these are the observations:

• setting the state manually causes editor focus to be lost (i.e. have to click on editor again)
• if manual state update is removed, it seems like the editor updates it automatically

In other words, the correct approach seems to be to just pass value and never handle the state.
This is totally fine 👍 Great even, but not obvious (to me, at least).

However, loosing focus is still weird, as appears to be kept in the component.
Is this behaviour intended?

import React, { useState, useRef, useEffect } from 'react';
import dynamic from 'next/dynamic';
import MarkdownIt from 'markdown-it'
import 'react-markdown-editor-lite/lib/index.css';


export const SimpleMDEditor = () => {

    const [md, setMD] = useState("")

    const mdParser = new MarkdownIt();
    const MdEditor = dynamic(() => import('react-markdown-editor-lite'), {
        ssr: false
    });

    const handleEditorChange = ({ html, text }) => {

        console.log("text", text);
        //REMOVE LINE BELOW -> Focus is not lost 
        setMD(text);
    }

    return <MdEditor
        // key="markdownEditor"
        id="test"
        value={md}
        style={{ height: "500px" }}
        renderHTML={(text) => mdParser.render(text)}
        onChange={handleEditorChange}
    />
}

[sylingd]

What system and browser you are using?

[olaven]

@sylingd Chrome/Firefox and the latest MacOS :-)

[erlendoeien]

@olaven I'm struggling with a similar issue, but not with this package.
If the Editor is nested in another components, theres probably an issue with the rerendering.
This and this might give some insight (I've not solved the issue myself yet).

If you figured it out, I would love some feedback/pointers! 😃

[olaven]

Hi, @erlendoeien! Sorry for the late response.
The solution was related to rerendering! I'm not entirely sure, but I think we ended up keeping the
markdown-state in a parent. This was a collaboration effort and it's been a while, so I don't remember the details..

[masaez]

If anyone bumbs with this issue, I was able to fix it by NOT using useState. I am currently declaring a variable outside the render function, and just updating that function. I am using Next.js as reference.

[jaddoescad]

@masaez hey masaez, could you share a code snippet of how you were able to solve this issue?