refactor(v2): add @theme-init alias to give access to initial components (#2464)

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Alexey Pyltsyn 2020-05-17 17:47:05 +03:00 committed by GitHub
parent d145f03ea8
commit d910ff118e
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7 changed files with 55 additions and 339 deletions

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@ -10,11 +10,10 @@
import React, {useEffect, useState, useRef} from 'react';
import classnames from 'classnames';
import Highlight, {defaultProps} from 'prism-react-renderer';
import defaultTheme from 'prism-react-renderer/themes/palenight';
import Clipboard from 'clipboard';
import rangeParser from 'parse-numeric-range';
import useDocusaurusContext from '@docusaurus/useDocusaurusContext';
import useThemeContext from '@theme/hooks/useThemeContext';
import usePrismTheme from '@theme/hooks/usePrismTheme';
import styles from './styles.module.css';
@ -113,10 +112,7 @@ export default ({children, className: languageClassName, metastring}) => {
let highlightLines = [];
let codeBlockTitle = '';
const {isDarkTheme} = useThemeContext();
const lightModeTheme = prism.theme || defaultTheme;
const darkModeTheme = prism.darkTheme || lightModeTheme;
const prismTheme = isDarkTheme ? darkModeTheme : lightModeTheme;
const prismTheme = usePrismTheme();
if (metastring && highlightLinesRangeRegex.test(metastring)) {
const highlightLinesRange = metastring.match(highlightLinesRangeRegex)[1];

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@ -0,0 +1,26 @@
/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
import defaultTheme from 'prism-react-renderer/themes/palenight';
import useDocusaurusContext from '@docusaurus/useDocusaurusContext';
import useThemeContext from '@theme/hooks/useThemeContext';
const usePrismTheme = () => {
const {
siteConfig: {
themeConfig: {prism = {}},
},
} = useDocusaurusContext();
const {isDarkTheme} = useThemeContext();
const lightModeTheme = prism.theme || defaultTheme;
const darkModeTheme = prism.darkTheme || lightModeTheme;
const prismTheme = isDarkTheme ? darkModeTheme : lightModeTheme;
return prismTheme;
};
export default usePrismTheme;

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@ -5,281 +5,32 @@
* LICENSE file in the root directory of this source tree.
*/
/* eslint-disable jsx-a11y/no-noninteractive-tabindex */
import React, {useEffect, useState, useRef} from 'react';
import classnames from 'classnames';
import Highlight, {defaultProps} from 'prism-react-renderer';
import defaultTheme from 'prism-react-renderer/themes/palenight';
import Clipboard from 'clipboard';
import rangeParser from 'parse-numeric-range';
import React from 'react';
import useDocusaurusContext from '@docusaurus/useDocusaurusContext';
import useThemeContext from '@theme/hooks/useThemeContext';
import usePrismTheme from '@theme/hooks/usePrismTheme';
import Playground from '@theme/Playground';
import CodeBlock from '@theme-init/CodeBlock';
import styles from './styles.module.css';
const withLiveEditor = (Component) => {
const WrappedComponent = (props) => {
const {isClient} = useDocusaurusContext();
const prismTheme = usePrismTheme();
const highlightLinesRangeRegex = /{([\d,-]+)}/;
const getHighlightDirectiveRegex = (
languages = ['js', 'jsBlock', 'jsx', 'python', 'html'],
) => {
// supported types of comments
const comments = {
js: {
start: '\\/\\/',
end: '',
},
jsBlock: {
start: '\\/\\*',
end: '\\*\\/',
},
jsx: {
start: '\\{\\s*\\/\\*',
end: '\\*\\/\\s*\\}',
},
python: {
start: '#',
end: '',
},
html: {
start: '<!--',
end: '-->',
},
};
// supported directives
const directives = [
'highlight-next-line',
'highlight-start',
'highlight-end',
].join('|');
// to be more reliable, the opening and closing comment must match
const commentPattern = languages
.map(
(lang) =>
`(?:${comments[lang].start}\\s*(${directives})\\s*${comments[lang].end})`,
)
.join('|');
// white space is allowed, but otherwise it should be on it's own line
return new RegExp(`^\\s*(?:${commentPattern})\\s*$`);
};
// select comment styles based on language
const highlightDirectiveRegex = (lang) => {
switch (lang) {
case 'js':
case 'javascript':
case 'ts':
case 'typescript':
return getHighlightDirectiveRegex(['js', 'jsBlock']);
case 'jsx':
case 'tsx':
return getHighlightDirectiveRegex(['js', 'jsBlock', 'jsx']);
case 'html':
return getHighlightDirectiveRegex(['js', 'jsBlock', 'html']);
case 'python':
case 'py':
return getHighlightDirectiveRegex(['python']);
default:
// all comment types
return getHighlightDirectiveRegex();
}
};
const codeBlockTitleRegex = /title=".*"/;
export default ({
children,
className: languageClassName,
live,
metastring,
...props
}) => {
const {
siteConfig: {
themeConfig: {prism = {}},
},
} = useDocusaurusContext();
const [showCopied, setShowCopied] = useState(false);
const [mounted, setMounted] = useState(false);
// The Prism theme on SSR is always the default theme but the site theme
// can be in a different mode. React hydration doesn't update DOM styles
// that come from SSR. Hence force a re-render after mounting to apply the
// current relevant styles. There will be a flash seen of the original
// styles seen using this current approach but that's probably ok. Fixing
// the flash will require changing the theming approach and is not worth it
// at this point.
useEffect(() => {
setMounted(true);
}, []);
const target = useRef(null);
const button = useRef(null);
let highlightLines = [];
let codeBlockTitle = '';
const {isDarkTheme} = useThemeContext();
const lightModeTheme = prism.theme || defaultTheme;
const darkModeTheme = prism.darkTheme || lightModeTheme;
const prismTheme = isDarkTheme ? darkModeTheme : lightModeTheme;
if (metastring && highlightLinesRangeRegex.test(metastring)) {
const highlightLinesRange = metastring.match(highlightLinesRangeRegex)[1];
highlightLines = rangeParser
.parse(highlightLinesRange)
.filter((n) => n > 0);
}
if (metastring && codeBlockTitleRegex.test(metastring)) {
codeBlockTitle = metastring
.match(codeBlockTitleRegex)[0]
.split('title=')[1]
.replace(/"+/g, '');
}
useEffect(() => {
let clipboard;
if (button.current) {
clipboard = new Clipboard(button.current, {
target: () => target.current,
});
if (props.live) {
return (
<Playground
key={isClient}
scope={{...React}}
theme={prismTheme}
{...props}
/>
);
}
return () => {
if (clipboard) {
clipboard.destroy();
}
};
}, [button.current, target.current]);
if (live) {
return (
<Playground
key={mounted}
scope={{...React}}
code={children.replace(/\n$/, '')}
theme={prismTheme}
{...props}
/>
);
}
let language =
languageClassName && languageClassName.replace(/language-/, '');
if (!language && prism.defaultLanguage) {
language = prism.defaultLanguage;
}
// only declaration OR directive highlight can be used for a block
let code = children.replace(/\n$/, '');
if (highlightLines.length === 0 && language !== undefined) {
let range = '';
const directiveRegex = highlightDirectiveRegex(language);
// go through line by line
const lines = children.replace(/\n$/, '').split('\n');
let blockStart;
// loop through lines
for (let index = 0; index < lines.length; ) {
const line = lines[index];
// adjust for 0-index
const lineNumber = index + 1;
const match = line.match(directiveRegex);
if (match !== null) {
const directive = match
.slice(1)
.reduce((final, item) => final || item, undefined);
switch (directive) {
case 'highlight-next-line':
range += `${lineNumber},`;
break;
case 'highlight-start':
blockStart = lineNumber;
break;
case 'highlight-end':
range += `${blockStart}-${lineNumber - 1},`;
break;
default:
break;
}
lines.splice(index, 1);
} else {
// lines without directives are unchanged
index += 1;
}
}
highlightLines = rangeParser.parse(range);
code = lines.join('\n');
}
const handleCopyCode = () => {
window.getSelection().empty();
setShowCopied(true);
setTimeout(() => setShowCopied(false), 2000);
return <Component {...props} />;
};
return (
<Highlight
{...defaultProps}
key={mounted}
theme={prismTheme}
code={code}
language={language}>
{({className, style, tokens, getLineProps, getTokenProps}) => (
<>
{codeBlockTitle && (
<div style={style} className={styles.codeBlockTitle}>
{codeBlockTitle}
</div>
)}
<div className={styles.codeBlockContent}>
<button
ref={button}
type="button"
aria-label="Copy code to clipboard"
className={classnames(styles.copyButton, {
[styles.copyButtonWithTitle]: codeBlockTitle,
})}
onClick={handleCopyCode}>
{showCopied ? 'Copied' : 'Copy'}
</button>
<div
tabIndex="0"
className={classnames(className, styles.codeBlock, {
[styles.codeBlockWithTitle]: codeBlockTitle,
})}>
<div ref={target} className={styles.codeBlockLines} style={style}>
{tokens.map((line, i) => {
if (line.length === 1 && line[0].content === '') {
line[0].content = '\n'; // eslint-disable-line no-param-reassign
}
const lineProps = getLineProps({line, key: i});
if (highlightLines.includes(i + 1)) {
lineProps.className = `${lineProps.className} docusaurus-highlight-code-line`;
}
return (
<div key={i} {...lineProps}>
{line.map((token, key) => (
<span key={key} {...getTokenProps({token, key})} />
))}
</div>
);
})}
</div>
</div>
</div>
</>
)}
</Highlight>
);
return WrappedComponent;
};
export default withLiveEditor(CodeBlock);

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@ -1,63 +0,0 @@
/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
.codeBlockContent {
position: relative;
}
.codeBlockTitle {
border-top-left-radius: var(--ifm-global-radius);
border-top-right-radius: var(--ifm-global-radius);
border-bottom: 1px solid var(--ifm-color-emphasis-200);
font-family: var(--ifm-font-family-monospace);
font-weight: bold;
padding: 0.75rem var(--ifm-pre-padding);
width: 100%;
}
.codeBlock {
overflow: auto;
border-radius: var(--ifm-global-radius);
}
.codeBlockWithTitle {
border-top-left-radius: 0;
border-top-right-radius: 0;
}
.copyButton {
background: rgba(0, 0, 0, 0.3);
border: none;
border-radius: var(--ifm-global-radius);
color: var(--ifm-color-white);
cursor: pointer;
opacity: 0;
outline: none;
padding: 0.4rem 0.5rem;
position: absolute;
right: calc(var(--ifm-pre-padding) / 2);
top: calc(var(--ifm-pre-padding) / 2);
visibility: hidden;
transition: opacity 200ms ease-in-out, visibility 200ms ease-in-out,
bottom 200ms ease-in-out;
}
.codeBlockTitle:hover + .codeBlockContent .copyButton,
.codeBlockContent:hover > .copyButton {
visibility: visible;
opacity: 1;
}
.codeBlockLines {
font-family: var(--ifm-font-family-monospace);
font-size: inherit;
line-height: var(--ifm-pre-line-height);
white-space: pre;
float: left;
min-width: 100%;
padding: var(--ifm-pre-padding);
}

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@ -14,7 +14,7 @@ import styles from './styles.module.css';
function Playground({children, theme, transformCode, ...props}) {
return (
<LiveProvider
code={children}
code={children.replace(/\n$/, '')}
transformCode={transformCode || ((code) => `${code};`)}
theme={theme}
{...props}>

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@ -16,6 +16,7 @@ describe('loadThemeAlias', () => {
const alias = loadThemeAlias([theme1Path, theme2Path]);
expect(alias).toEqual({
'@theme-init/Layout': path.join(theme1Path, 'Layout.js'), // TODO: Write separate test case for this?
'@theme/Footer': path.join(theme1Path, 'Footer/index.js'),
'@theme-original/Footer': path.join(theme1Path, 'Footer/index.js'),
'@theme/Navbar': path.join(theme2Path, 'Navbar.js'),

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@ -17,6 +17,11 @@ export function loadThemeAlias(
themePaths.forEach((themePath) => {
const themeAliases = themeAlias(themePath);
Object.keys(themeAliases).forEach((aliasKey) => {
if (aliasKey in aliases) {
const componentName = aliasKey.substring(aliasKey.indexOf('/') + 1);
aliases[`@theme-init/${componentName}`] = aliases[aliasKey];
}
aliases[aliasKey] = themeAliases[aliasKey];
});
});