Use slate.js as a rich text editor for chat messages

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Gabe Kangas 2022-05-05 13:52:10 -07:00
parent f96bde4f71
commit 66a55401a8
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3 changed files with 280 additions and 31 deletions

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@ -1,27 +1,101 @@
import { SmileOutlined } from '@ant-design/icons';
import { Button, Input } from 'antd';
import React, { useRef, useState } from 'react';
import React, { useState, useMemo } from 'react';
import { useRecoilValue } from 'recoil';
import ContentEditable from 'react-contenteditable';
import { Transforms, createEditor, Node, BaseEditor, Text } from 'slate';
import { Slate, Editable, withReact, ReactEditor } from 'slate-react';
import WebsocketService from '../../../services/websocket-service';
import { websocketServiceAtom } from '../../stores/ClientConfigStore';
import { getCaretPosition, convertToText, convertOnPaste } from '../chat';
import { MessageType } from '../../../interfaces/socket-events';
import s from './ChatTextField.module.scss';
type CustomElement = { type: 'paragraph'; children: CustomText[] };
type CustomText = { text: string };
declare module 'slate' {
interface CustomTypes {
Editor: BaseEditor & ReactEditor;
Element: CustomElement;
Text: CustomText;
}
}
interface Props {
value?: string;
}
const Image = ({ element }) => (
<img
src={element.url}
alt="emoji"
style={{ display: 'inline', position: 'relative', width: '30px', bottom: '10px' }}
/>
);
const insertImage = (editor, url) => {
const text = { text: '' };
const image: ImageElement = { type: 'image', url, children: [text] };
Transforms.insertNodes(editor, image);
};
const withImages = editor => {
const { isVoid } = editor;
editor.isVoid = element => (element.type === 'image' ? true : isVoid(element));
editor.isInline = element => element.type === 'image';
return editor;
};
export type EmptyText = {
text: string;
};
type ImageElement = {
type: 'image';
url: string;
children: EmptyText[];
};
const Element = props => {
const { attributes, children, element } = props;
switch (element.type) {
case 'image':
return <Image {...props} />;
default:
return <p {...attributes}>{children}</p>;
}
};
const serialize = node => {
if (Text.isText(node)) {
let string = node.text; // escapeHtml(node.text);
if (node.bold) {
string = `<strong>${string}</strong>`;
}
return string;
}
const children = node.children.map(n => serialize(n)).join('');
switch (node.type) {
case 'paragraph':
return `<p>${children}</p>`;
case 'image':
return `<img src="${node.url}" alt="emoji" />`;
default:
return children;
}
};
export default function ChatTextField(props: Props) {
const { value: originalValue } = props;
const [value, setValue] = useState(originalValue);
const [showEmojis, setShowEmojis] = useState(false);
const websocketService = useRecoilValue<WebsocketService>(websocketServiceAtom);
const [editor] = useState(() => withImages(withReact(createEditor())));
const text = useRef(value);
// large is 40px
const size = 'small';
const sendMessage = () => {
@ -30,41 +104,46 @@ export default function ChatTextField(props: Props) {
return;
}
const message = convertToText(value);
const message = serialize(editor);
websocketService.send({ type: MessageType.CHAT, body: message });
setValue('');
// Clear the editor.
Transforms.select(editor, [0, editor.children.length - 1]);
Transforms.delete(editor);
};
const handleChange = evt => {
text.current = evt.target.value;
setValue(evt.target.value);
};
const handleChange = e => {};
const handleKeyDown = event => {
const key = event && event.key;
if (key === 'Enter') {
const onKeyDown = e => {
if (e.key === 'Enter') {
e.preventDefault();
sendMessage();
}
};
const initialValue = [
{
type: 'paragraph',
children: [{ text: originalValue }],
},
];
return (
<div>
<Input.Group compact style={{ display: 'flex', width: '100%', position: 'absolute' }}>
<ContentEditable
style={{ width: '60%', maxHeight: '50px', padding: '5px' }}
html={text.current}
onChange={handleChange}
onKeyDown={e => {
handleKeyDown(e);
}}
<Slate editor={editor} value={initialValue} onChange={handleChange}>
<Editable
onKeyDown={onKeyDown}
renderElement={props => <Element {...props} />}
placeholder="Chat message goes here..."
/>
</Slate>
<Button type="default" ghost title="Emoji" onClick={() => setShowEmojis(!showEmojis)}>
<SmileOutlined style={{ color: 'rgba(0,0,0,.45)' }} />
</Button>
<Button size={size} type="primary" onClick={sendMessage}>
Submit
</Button>
</Input.Group>
</div>
);
}

168
web/package-lock.json generated
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View file

@ -36,6 +36,8 @@
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