Files
SCM-Manager/scm-ui/ui-components/src/SyntaxHighlighter.tsx

82 lines
2.8 KiB
TypeScript

/*
* MIT License
*
* Copyright (c) 2020-present Cloudogu GmbH and Contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
import React, { FC, useState } from "react";
import { PrismAsyncLight as ReactSyntaxHighlighter } from "react-syntax-highlighter";
import { defaultLanguage, determineLanguage } from "./languages";
// eslint-disable-next-line no-restricted-imports
import highlightingTheme from "./syntax-highlighting";
import { useLocation } from "react-router-dom";
import { withContextPath } from "./urls";
import createSyntaxHighlighterRenderer from "./SyntaxHighlighterRenderer";
import useScrollToElement from "./useScrollToElement";
const LINE_NUMBER_URL_HASH_REGEX = /^#line-(.*)$/;
type Props = {
language?: string;
value: string;
showLineNumbers?: boolean;
permalink?: string;
};
const SyntaxHighlighter: FC<Props> = ({ language = defaultLanguage, showLineNumbers = true, value, permalink }) => {
const location = useLocation();
const [contentRef, setContentRef] = useState<HTMLElement | null>();
useScrollToElement(
contentRef,
() => {
const match = location.hash.match(LINE_NUMBER_URL_HASH_REGEX);
if (match) {
return `#line-${match[1]}`;
}
},
value
);
const createLinePermaLink = (lineNumber: number) =>
window.location.protocol +
"//" +
window.location.host +
withContextPath((permalink || location.pathname) + "#line-" + lineNumber);
const defaultRenderer = createSyntaxHighlighterRenderer(createLinePermaLink, showLineNumbers);
return (
<div ref={setContentRef}>
<ReactSyntaxHighlighter
showLineNumbers={false}
language={determineLanguage(language)}
style={highlightingTheme}
renderer={defaultRenderer}
>
{value}
</ReactSyntaxHighlighter>
</div>
);
};
export default SyntaxHighlighter;