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Source.tsx
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Source.tsx
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import type { ComponentProps, FunctionComponent } from 'react';
import React from 'react';
import {
styled,
ThemeProvider,
convert,
themes,
ignoreSsrWarning,
useTheme,
} from '@storybook/theming';
import type { SupportedLanguage, SyntaxHighlighterProps } from '@storybook/components';
import { SyntaxHighlighter } from '@storybook/components';
import { EmptyBlock } from './EmptyBlock';
const StyledSyntaxHighlighter: React.FunctionComponent<SyntaxHighlighterProps> = styled(
SyntaxHighlighter
)(({ theme }) => ({
// DocBlocks-specific styling and overrides
fontSize: `${theme.typography.size.s2 - 1}px`,
lineHeight: '19px',
margin: '25px 0 40px',
borderRadius: theme.appBorderRadius,
boxShadow:
theme.base === 'light' ? 'rgba(0, 0, 0, 0.10) 0 1px 3px 0' : 'rgba(0, 0, 0, 0.20) 0 2px 5px 0',
'pre.prismjs': {
padding: 20,
background: 'inherit',
},
}));
export enum SourceError {
NO_STORY = 'There\u2019s no story here.',
SOURCE_UNAVAILABLE = 'Oh no! The source is not available.',
}
export interface SourceCodeProps {
/**
* The language the syntax highlighter uses for your story’s code
*/
language?: SupportedLanguage;
/**
* Use this to override the content of the source block.
*/
code?: string;
/**
* The (prettier) formatter the syntax highlighter uses for your story’s code.
*/
format?: ComponentProps<typeof SyntaxHighlighter>['format'];
/**
* Display the source snippet in a dark mode.
*/
dark?: boolean;
}
export interface SourceProps extends SourceCodeProps {
isLoading?: boolean;
error?: SourceError;
}
const SourceSkeletonWrapper = styled.div(({ theme }) => ({
background: theme.background.content,
borderRadius: theme.appBorderRadius,
border: `1px solid ${theme.appBorderColor}`,
boxShadow:
theme.base === 'light' ? 'rgba(0, 0, 0, 0.10) 0 1px 3px 0' : 'rgba(0, 0, 0, 0.20) 0 2px 5px 0',
margin: '25px 0 40px',
padding: '20px 20px 20px 22px',
}));
const SourceSkeletonPlaceholder = styled.div(({ theme }) => ({
animation: `${theme.animation.glow} 1.5s ease-in-out infinite`,
background: theme.appBorderColor,
height: 17,
marginTop: 1,
width: '60%',
[`&:first-child${ignoreSsrWarning}`]: {
margin: 0,
},
}));
const SourceSkeleton = () => (
<SourceSkeletonWrapper>
<SourceSkeletonPlaceholder />
<SourceSkeletonPlaceholder style={{ width: '80%' }} />
<SourceSkeletonPlaceholder style={{ width: '30%' }} />
<SourceSkeletonPlaceholder style={{ width: '80%' }} />
</SourceSkeletonWrapper>
);
/**
* Syntax-highlighted source code for a component (or anything!)
*/
const Source: FunctionComponent<SourceProps> = ({
isLoading,
error,
language,
code,
dark,
format = false,
...rest
}) => {
const { typography } = useTheme();
if (isLoading) {
return <SourceSkeleton />;
}
if (error) {
return <EmptyBlock>{error}</EmptyBlock>;
}
const syntaxHighlighter = (
<StyledSyntaxHighlighter
bordered
copyable
format={format}
language={language}
className="docblock-source sb-unstyled"
{...rest}
>
{code}
</StyledSyntaxHighlighter>
);
if (typeof dark === 'undefined') {
return syntaxHighlighter;
}
const overrideTheme = dark ? themes.dark : themes.light;
return (
<ThemeProvider
theme={convert({
...overrideTheme,
fontCode: typography.fonts.mono,
fontBase: typography.fonts.base,
})}
>
{syntaxHighlighter}
</ThemeProvider>
);
};
export { Source, StyledSyntaxHighlighter };