122 lines
2.9 KiB
JavaScript
122 lines
2.9 KiB
JavaScript
// @flow
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import * as React from 'react';
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import remark from 'remark';
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import remarkAttr from 'remark-attr';
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import remarkStrip from 'strip-markdown';
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import remarkEmoji from 'remark-emoji';
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import reactRenderer from 'remark-react';
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import ExternalLink from 'component/externalLink';
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import defaultSchema from 'hast-util-sanitize/lib/github.json';
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import { formatedLinks, inlineLinks } from 'util/remark-lbry';
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import { Link } from 'react-router-dom';
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import { formatLbryUrlForWeb } from 'util/url';
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type SimpleTextProps = {
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children?: React.Node,
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};
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type SimpleLinkProps = {
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href?: string,
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title?: string,
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children?: React.Node,
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};
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type MarkdownProps = {
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strip?: boolean,
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content: ?string,
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promptLinks?: boolean,
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};
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const SimpleText = (props: SimpleTextProps) => {
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return <span>{props.children}</span>;
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};
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const SimpleLink = (props: SimpleLinkProps) => {
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const { title, children } = props;
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let { href } = props;
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if (IS_WEB && href && href.startsWith('lbry://')) {
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href = formatLbryUrlForWeb(href);
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// using Link after formatLbryUrl to handle "/" vs "#/"
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// for web and desktop scenarios respectively
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return (
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<Link
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title={title}
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to={href}
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onClick={e => {
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e.stopPropagation();
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}}
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>
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{children}
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</Link>
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);
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}
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return (
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<a href={href} title={title}>
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{children}
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</a>
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);
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};
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// Use github sanitation schema
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const schema = { ...defaultSchema };
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// Extend sanitation schema to support lbry protocol
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schema.protocols.href.push('lbry');
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schema.attributes.a.push('embed');
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const MarkdownPreview = (props: MarkdownProps) => {
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const { content, strip, promptLinks } = props;
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const remarkOptions: Object = {
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sanitize: schema,
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fragment: React.Fragment,
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remarkReactComponents: {
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a: promptLinks ? ExternalLink : SimpleLink,
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// Workaraund of remarkOptions.Fragment
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div: React.Fragment,
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},
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};
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const remarkAttrOpts = {
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scope: 'extended',
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elements: ['link'],
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extend: { link: ['embed'] },
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defaultValue: true,
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};
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// Strip all content and just render text
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if (strip) {
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// Remove new lines and extra space
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remarkOptions.remarkReactComponents.p = SimpleText;
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return (
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<span className="markdown-preview">
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{
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remark()
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.use(remarkStrip)
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.use(reactRenderer, remarkOptions)
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.processSync(content).contents
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}
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</span>
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);
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}
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return (
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<div className="markdown-preview">
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{
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remark()
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.use(remarkAttr, remarkAttrOpts)
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// Remark plugins for lbry urls
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// Note: The order is important
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.use(formatedLinks)
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.use(inlineLinks)
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// Emojis
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.use(remarkEmoji)
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.use(reactRenderer, remarkOptions)
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.processSync(content).contents
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}
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</div>
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);
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};
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export default MarkdownPreview;
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