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import * as React from 'react';
import styled from 'styled-components';
import {getCSSPadding, PaddingInterface} from 'ts/@next/constants/utilities';
interface BaseTextInterface extends PaddingInterface {
size?: 'default' | 'medium' | 'large' | 'small' | number;
isCentered?: boolean;
}
interface HeadingProps extends BaseTextInterface {
asElement?: 'h1'| 'h2'| 'h3'| 'h4';
isCentered?: boolean;
isNoMargin?: boolean;
isMuted?: boolean | number;
marginBottom?: string;
color?: string;
}
interface ParagraphProps extends BaseTextInterface {
isNoMargin?: boolean;
marginBottom?: string; // maybe we should remove isNoMargin
isMuted?: boolean | number;
}
const StyledHeading = styled.h1<HeadingProps>`
color: ${props => props.color || props.theme.textColor};
font-size: ${props => isNaN(props.size) ? `var(--${props.size || 'default'}Heading)` : `${props.size}px`};
line-height: ${props => `var(--${props.size || 'default'}HeadingHeight)`};
text-align: ${props => props.isCentered && 'center'};
padding: ${props => props.padding && getCSSPadding(props.padding)};
margin-left: ${props => props.isCentered && 'auto'};
margin-right: ${props => props.isCentered && 'auto'};
margin-bottom: ${props => !props.isNoMargin && (props.marginBottom || '30px')};
opacity: ${props => typeof props.isMuted === 'boolean' ? 0.75 : props.isMuted};
font-weight: ${props => ['h4'].includes(props.asElement) ? 400 : 300};
`;
export const Heading: React.StatelessComponent<HeadingProps> = props => {
const {
asElement = 'h1',
children,
...style,
} = props;
const Component = StyledHeading.withComponent(asElement);
return (
<Component
style={{...style}}
{...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: ${props => `var(--${props.size || 'default'}Paragraph)`};
margin-bottom: ${props => !props.isNoMargin && (props.marginBottom || '30px')};
padding: ${props => props.padding && getCSSPadding(props.padding)};
color: ${props => props.color || props.theme.textColor};
opacity: ${props => typeof props.isMuted === 'boolean' ? 0.75 : props.isMuted};
text-align: ${props => props.isCentered && 'center'};
line-height: 1.4;
`;
Paragraph.defaultProps = {
isMuted: true,
};
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