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import * as React from 'react';
import styled from 'styled-components';
interface HeadingProps {
asElement?: 'h1'| 'h2'| 'h3'| 'h4';
size?: 'default' | 'medium' | 'large' | 'small';
isCentered?: boolean;
isNoMargin?: boolean;
}
interface ParagraphProps {
isNoMargin?: boolean;
size?: 'default' | 'small' | 'medium' | 'large';
isMuted?: boolean | number;
isCentered?: boolean;
}
interface HeadingSizes {
large: string;
medium: string;
default: string;
small: string;
[key: string]: string;
}
interface ParagraphSizes {
default: string;
medium: string;
large: string;
[key: string]: string;
}
const HEADING_SIZES: HeadingSizes = {
large: '80px',
medium: '50px',
default: '28px',
small: '20px',
};
const PARAGRAPH_SIZES: ParagraphSizes = {
default: '18px',
small: '14px',
medium: '22px',
large: '28px',
};
const StyledHeading = styled.h1<HeadingProps>`
color: ${props => props.color || props.theme.textColor};
font-size: ${props => HEADING_SIZES[props.size || 'default']};
font-weight: 300;
margin-bottom: ${props => !props.isNoMargin && '30px'};
text-align: ${props => props.isCentered && 'center'};
`;
export const Heading: React.StatelessComponent<HeadingProps> = props => {
const {
asElement = 'h1',
children,
} = props;
const Component = StyledHeading.withComponent(asElement);
return <Component {...props}>{children}</Component>;
};
// No need to declare it twice as Styled then rewrap as a stateless comp
// Note: this would be useful to be implemented the same way was "Heading"
// and be more generic. e.g. <Text /> with a props asElement so we can use it
// for literally anything =
export const Paragraph = styled.p<ParagraphProps>`
font-size: ${props => PARAGRAPH_SIZES[props.size || 'default']};
margin-bottom: ${props => !props.isNoMargin && '30px'};
line-height: 1.4;
color: ${props => props.color || props.theme.textColor};
opacity: ${props => typeof props.isMuted === 'boolean' ? 0.75 : props.isMuted};
text-align: ${props => props.isCentered && 'center'};
`;
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