Files
mattermost-mobile/app/components/remove_markdown/index.tsx
Anurag Shivarathri eaa150cb4b include latex (#6434)
2022-06-29 22:02:30 +05:30

95 lines
2.9 KiB
TypeScript

// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
import {Parser} from 'commonmark';
import Renderer from 'commonmark-react-renderer';
import React, {ReactElement, useCallback, useRef} from 'react';
import {StyleProp, Text, TextStyle} from 'react-native';
import Emoji from '@components/emoji';
import type {MarkdownEmojiRenderer} from '@typings/global/markdown';
type Props = {
enableEmoji?: boolean;
enableHardBreak?: boolean;
enableSoftBreak?: boolean;
textStyle: StyleProp<TextStyle>;
value: string;
};
const RemoveMarkdown = ({enableEmoji, enableHardBreak, enableSoftBreak, textStyle, value}: Props) => {
const renderEmoji = useCallback(({emojiName, literal}: MarkdownEmojiRenderer) => {
return (
<Emoji
emojiName={emojiName}
literal={literal}
testID='markdown_emoji'
textStyle={textStyle}
/>
);
}, [textStyle]);
const renderBreak = useCallback(() => {
return '\n';
}, []);
const renderText = ({literal}: {literal: string}) => {
return <Text style={textStyle}>{literal}</Text>;
};
const renderNull = () => {
return null;
};
const createRenderer = () => {
return new Renderer({
renderers: {
text: renderText,
emph: Renderer.forwardChildren,
strong: Renderer.forwardChildren,
del: Renderer.forwardChildren,
code: Renderer.forwardChildren,
link: Renderer.forwardChildren,
image: renderNull,
atMention: Renderer.forwardChildren,
channelLink: Renderer.forwardChildren,
emoji: enableEmoji ? renderEmoji : renderNull,
hashtag: Renderer.forwardChildren,
latexinline: Renderer.forwardChildren,
paragraph: Renderer.forwardChildren,
heading: Renderer.forwardChildren,
codeBlock: renderNull,
blockQuote: renderNull,
list: renderNull,
item: renderNull,
hardBreak: enableHardBreak ? renderBreak : renderNull,
thematicBreak: renderNull,
softBreak: enableSoftBreak ? renderBreak : renderNull,
htmlBlock: renderNull,
htmlInline: renderNull,
table: renderNull,
table_row: renderNull,
table_cell: renderNull,
mention_highlight: Renderer.forwardChildren,
editedIndicator: Renderer.forwardChildren,
} as any,
});
};
const parser = useRef(new Parser()).current;
const renderer = useRef(createRenderer()).current;
const ast = parser.parse(value);
return renderer.render(ast) as ReactElement;
};
export default RemoveMarkdown;